Self-forming curtain wall gluing device without pasting masking paper

By designing a self-forming curtain wall glue applicator, an intelligent glue gun composed of a sensor injection head and a servo motor is used to achieve automated glue application, solving the problems of cumbersome procedures, material waste, and pollution risks in existing technologies, and improving construction efficiency and quality stability.

CN121931998APending Publication Date: 2026-04-28CHINA FIRST METALLURGICAL GROUP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA FIRST METALLURGICAL GROUP
Filing Date
2025-12-31
Publication Date
2026-04-28

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Abstract

The invention discloses a pasting-free masking paper self-forming curtain wall gluing device which comprises a glue barrel and a glue gun, the glue gun comprises glue gun fasteners and a glue gun rear cover, a sensing injection head is installed on a glue barrel cover plate, the glue barrel cover plate is installed on the glue gun rear cover through a plurality of glue gun fasteners, and the glue gun rear cover is installed on the glue barrel cover plate through a plurality of glue gun fasteners. A servo motor, a chip and a signal generator are installed in the glue gun rear cover. The sensing injection head comprises a shell, a sensor wire groove, a glue outlet monitoring sensor, a glue amount control sensor, a light supplementing LED lamp, a monitoring cavity, a glue outlet cavity, a glue face shaping scraping block and a flexible sealing scraping lip. According to the method, multiple procedures are combined into one step, and the construction efficiency is improved by multiple times; the use process of the masking paper is saved, the purchase cost and the waste treatment cost of the masking paper are saved, and meanwhile, the training cost and the rework rate are reduced; the pollution of the colloid to the working surface is completely eradicated from the source, so that the construction environment is tidier; and the requirements of various curtain wall cracks and adhesive surfaces can be met.
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Description

Technical Field

[0001] This invention relates to the field of building decoration and construction tools, and in particular to a self-forming curtain wall adhesive applicator that does not require masking tape. Background Technology

[0002] With the development of the construction industry, curtain walls are increasingly widely used in building exterior decoration. Curtain walls are typically assembled from glass or aluminum panels, and sealing the seams and joints between these panels with sealant is an essential step. The current standard process is as follows: clean both sides of the seam → apply masking tape to prevent overflow and contamination → apply sealant using a caulking gun → roughly scrape away excess sealant with a scraper → finely scrape with a special curved scraper to shape the sealant surface → remove the masking tape. This process has the following significant drawbacks: 1. The process is cumbersome and inefficient: applying and tearing masking tape and scraping adhesive multiple times consume a lot of time.

[0003] 2. Material waste: Masking tape is a disposable consumable, which generates additional costs and construction waste.

[0004] 3. Quality depends on worker skill: The flatness of the rubber surface and the uniformity of the grooves are highly dependent on the worker's experience and skill level, making it difficult to maintain stable quality and easily leading to rework.

[0005] 4. Risk of contamination: When removing the masking tape, there is still a risk of accidentally contaminating the surface of the curtain wall with the undried adhesive.

[0006] Therefore, the market urgently needs a glue application tool that can simplify the process, reduce reliance on workers' skills, and ensure high-quality molding results. Summary of the Invention

[0007] The purpose of this invention is to address the shortcomings of existing technologies by proposing a self-forming curtain wall adhesive applicator that eliminates the need for masking tape.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A self-forming curtain wall caulking device that requires no masking tape includes a glue cartridge and a glue gun. The glue gun includes glue gun fasteners and a glue gun rear cover. A sensing injection head is mounted on the glue cartridge cover plate. The glue cartridge cover plate is mounted on the glue gun rear cover by several glue gun fasteners. A servo motor, a chip, and a signal generator are installed inside the glue gun rear cover. The sensing injection head includes a housing, a sensor wire groove, a glue dispensing monitoring sensor, a glue volume control sensor, a supplementary LED light, a monitoring cavity, a glue dispensing cavity, a glue surface shaping scraper, and a flexible sealing scraper lip. The housing has a monitoring cavity and a glue dispensing cavity inside. The monitoring cavity has a glue dispensing monitoring sensor and a glue volume control sensor installed inside. The glue surface shaping scraper is fixed inside the glue dispensing cavity. Flexible sealing scrapers are fixed on both sides of the housing.

[0009] Preferably, the servo motor inside the back cover of the glue gun drives the pressure screw to press the glue cylinder and extrude the glue liquid.

[0010] Preferably, the glue cartridge is located within the area enclosed by the glue cartridge cover, the glue gun rear cover, and the glue gun fastener.

[0011] Preferably, a glue gun handle is fixed to the back cover of the glue gun, and a glue dispensing button is installed on the glue gun handle.

[0012] Preferably, the monitoring cavity is equipped with sensor cable slots and supplementary LED lights.

[0013] Preferably, the glue outlet of the glue tube is connected to the glue dispensing chamber through a glue tube cover plate.

[0014] Preferably, the glue dispensing monitoring sensor points to the outlet of the glue dispensing chamber, and the glue quantity control sensor points to the middle of the monitoring cavity.

[0015] Preferably, the dispensing cavity and the adhesive surface shaping scraper form an integral adhesive molding module.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, by designing a scraping lip and glue dispensing chamber on a sensing injection head, as well as a scraping block, the steps of applying and tearing masking tape and applying coarse and fine glue are completely eliminated, merging multiple processes into one step and increasing construction efficiency several times over. Furthermore, the physical structure ensures the quality of the glue surface formation, eliminating the influence of human factors and ensuring that every application of glue achieves a uniform and aesthetically pleasing standard.

[0017] 2. In this invention, the design of the adhesive-coated scraping lip saves on the use of masking tape, reduces the purchase cost and waste disposal cost of masking tape, and also reduces training costs and rework rate.

[0018] 3. In this invention, the injection head adopts a relatively closed design such as the dispensing chamber and scraping lip to ensure that the adhesive only flows out inside the adhesive joint, thereby eliminating the contamination of the working surface by the adhesive from the source and making the construction environment cleaner.

[0019] 4. In this invention, by designing a replaceable colloid molding module, different specifications of colloid molding module modules can be replaced to meet various curtain wall gap and adhesive surface requirements. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a self-forming curtain wall adhesive applicator that does not require masking tape, as proposed in this invention. Figure 2 This is a cross-sectional view of the sensor injection head of a self-forming curtain wall adhesive applicator that eliminates the need for masking tape, as proposed in this invention. Figure 3This is a cross-sectional view of the integral adhesive shaping module of a self-forming curtain wall adhesive applicator that eliminates the need for masking tape, as proposed in this invention.

[0021] In the diagram: 1. Glue cartridge, 2. Sensor injection head, 3. Glue cartridge cover, 4. Glue gun, 4-1. Glue gun fastener, 4-2. Glue injection button, 4-3. Glue gun rear cover, 4-4. Glue gun handle, 5. Pressure screw, 6. Sensor cable groove, 7. Glue dispensing monitoring sensor, 8. Glue quantity control sensor, 9. Supplemental LED light, 10. Monitoring cavity, 11. Glue dispensing cavity, 12. Glue surface shaping scraper, 13. Overall Glue molding module, 14. Flexible sealing scraper lip. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] Reference Figure 1-3 A self-forming curtain wall caulking device that requires no masking tape includes a glue cartridge 1 and a glue gun 4. The glue gun 4 includes glue gun fasteners 4-1 and a glue gun rear cover 4-3. A sensor injection head 2 is mounted on a glue cartridge cover plate 3. The glue cartridge cover plate 3 is mounted on the glue gun rear cover 4-3 via several glue gun fasteners 4-1. A servo motor, a chip, and a signal generator are installed inside the glue gun rear cover 4-3. The sensor injection head 2 includes a housing, a sensor wire groove 6, a glue dispensing monitoring sensor 7, a glue quantity control sensor 8, a supplementary LED light 9, a monitoring cavity 10, a glue dispensing cavity 11, a glue surface shaping scraper 12, and a flexible sealing scraper lip 14. The housing contains a monitoring cavity 10 and a glue dispensing cavity 11. The monitoring cavity 10 contains the glue dispensing monitoring sensor 7 and the glue quantity control sensor 8. The glue dispensing cavity 11 contains the glue dispensing monitoring sensor 7 and the glue quantity control sensor 8. The internal part of the gun has a glue-shaping scraper 12 fixed inside. Flexible sealing scraper lips 14 are fixed on both sides of the housing. The servo motor inside the glue gun back cover 4-3 drives the glue pressing screw 5 to press the glue cylinder 1 to extrude glue. The glue cylinder 1 is located in the area enclosed by the glue cylinder cover 3, the glue gun back cover 4-3 and the glue gun fastener 4-1. The glue gun handle 4-4 is fixed on the glue gun back cover 4-3. The glue gun handle 4-4 is equipped with a glue injection button 4-2. The monitoring cavity 10 is equipped with a sensor wire groove 6 and a supplementary LED light 9. The glue outlet of the glue cylinder 1 is connected to the glue outlet cavity 11 through the glue cylinder cover 3. The glue outlet monitoring sensor 7 points to the outlet of the glue outlet cavity 11, and the glue quantity control sensor 8 points to the middle of the monitoring cavity 10. The glue outlet cavity 11 and the glue-shaping scraper 12 form an integral glue shaping module 13.

[0024] The sensor injection head 2 has a glue cartridge cover 3, which is connected to the glue gun rear cover 4-3 via a glue gun fastener 4-1. A glue dispensing button 4-2 on the glue gun handle 4-4 controls the glue dispensing. The pressure screw 5, driven by a servo motor inside the glue gun rear cover 4-3, presses the glue cartridge 1 to expel the glue. The glue gun rear cover 4-3 is equipped with an intelligent control chip and a signal generator, a controllable-speed servo motor, and the chip can receive electrical signals from the sensor injection head 2. Based on different electrical signals, it can emit light and sound signals to indicate the working status. The internal servo motor is controlled by an electrical signal to dynamically control its speed. The sensor injection head 2 is located at the front end, with flexible sealing lips 14 on both sides of its dispensing surface. These lips are made of wear-resistant, highly elastic materials such as silicone, and can press firmly against the curtain wall surface during construction, effectively scraping away and sealing any overflowing adhesive, completely replacing the function of masking tape. Wiring in the sensor cable tray 6 connects to the dispensing monitoring sensor 7, the adhesive quantity control sensor 8, and the supplementary LED light 9. The wiring passes through the adhesive cartridge cover plate 3. The glue gun fastener 4-1 connects to the chip inside the glue gun back cover 4-3; the glue outlet of the glue cartridge 1 connects to the glue cartridge cover plate 3, allowing the glue to flow out from the glue outlet chamber 11 to complete the initial molding of the glue; the cavity of the glue outlet chamber 11 gradually changes from the inlet to the outlet, eventually forming a specific shape such as an arc or V-shape. This "pre-forming cavity" allows the cross-sectional shape shaped by the glue during extrusion to fit the final molding surface. After the glue flows out, it is scraped and pressed by the glue surface shaping scraper 12 to complete the glue surface shaping; the supplementary LED light 9 provides light. The source lighting monitoring cavity 10, the glue dispensing monitoring sensor 7 points to the opening of the glue dispensing cavity 11, and the glue quantity control sensor 8 points to the middle of the monitoring cavity 10. When the glue is too little, the glue dispensing monitoring sensor 7 cannot detect the glue and transmits a signal of insufficient glue. When the glue quantity is too much, it flows into the monitoring cavity 10, the glue quantity control sensor 8 detects the glue and transmits a signal of excessive glue. Furthermore, the glue dispensing cavity 11 and the glue surface shaping scraper 12 form an integrated glue molding module 13, which can be unloaded and replaced from the sensing injection head 2.

[0025] The specific steps are as follows: Step 1: Preparation. Use the smart glue gun after it is fully charged or directly under a power source. Select the overall glue shaping module 13 according to the requirements of the glue surface and the size of the glue joint, and install it on the sensor injection head 2.

[0026] Step 2: The sensor injection head 2 is fixedly connected to the glue cartridge cover plate 3. The glue cartridge 1 is placed into the glue gun 4, and the glue cartridge cover plate 3 is fastened.

[0027] Step 3: During the caulking process, align the caulking gun nozzle with the caulking joint, and insert the caulking scraper 12. After the operator activates the caulking button 4-2, wait for approximately 3 seconds to allow the caulking fluid to fill the dispensing chamber and the curtain wall caulking joint. Once the caulking monitoring sensor 7 detects sufficient caulking fluid, the caulking gun will emit a perceptible light or sound signal. The operator can then move the caulking gun at a constant speed along the caulking joint.

[0028] Step 4: During the glue gun's forward movement, when the glue dispensing monitoring sensor 7 detects sufficient glue, the glue gun will continuously emit a feasible light or sound signal that is perceptible to the operator, and the operator should continue to advance the glue gun. When the glue is insufficient, the glue gun will emit an infeasibility light or sound signal that is perceptible to the operator, and the operator should stop advancing the glue gun.

[0029] Step 5: When the glue quantity control sensor 8 detects excessive glue overflowing into the monitoring cavity, the glue gun dynamically adjusts the internal motor speed under chip control to slow down or stop the glue dispensing speed until there is no excess glue in the monitoring cavity. If the glue quantity control sensor 8 detects excessive glue overflowing into the monitoring cavity for more than 5 seconds, it immediately stops dispensing glue and sends an error alarm to the operator. The operator should immediately check and make adjustments.

[0030] Step Six: When the glue in the glue cartridge is used up, the pressure screw reaches the bottom, the glue gun can no longer squeeze the glue cartridge, and a glue cartridge replacement signal is issued.

[0031] Step 7: After the work is completed, the staff immediately disassembles the glue tube and the sensor injection head, and removes the latter's glue molding module for cleaning and wiping to prevent adhesion.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A self-forming curtain wall glue applicator that requires no masking tape, comprising a glue cartridge (1) and a glue gun (4), characterized in that, The glue gun (4) includes glue gun fasteners (4-1) and glue gun rear cover (4-3). The sensing injection head (2) is mounted on the glue cartridge cover plate (3). The glue cartridge cover plate (3) is mounted on the glue gun rear cover (4-3) by several glue gun fasteners (4-1). The glue gun rear cover (4-3) is equipped with a servo motor, a chip, and a signal generator. The sensing injection head (2) includes a housing, a sensor wire slot (6), a glue dispensing monitoring sensor (7), and a glue quantity control sensor (8). 8) LED supplement light (9), monitoring cavity (10), glue dispensing cavity (11), glue surface shaping scraper (12), flexible sealing scraper lip (14). The housing is provided with a monitoring cavity (10) and a glue dispensing cavity (11). The monitoring cavity (10) is equipped with a glue dispensing monitoring sensor (7) and a glue quantity control sensor (8). The glue surface shaping scraper (12) is fixed inside the glue dispensing cavity (11). Flexible sealing scraper lip (14) is fixed on both sides of the housing.

2. The self-forming curtain wall adhesive applicator that requires no masking tape as described in claim 1, characterized in that, The servo motor inside the back cover (4-3) of the glue gun drives the pressing screw (5) to press the glue cylinder (1) and squeeze out the glue liquid.

3. The self-forming curtain wall adhesive applicator that requires no masking tape as described in claim 1, characterized in that, The glue tube (1) is located in the area enclosed by the glue tube cover plate (3), the glue gun rear cover (4-3), and the glue gun fastener (4-1).

4. The self-forming curtain wall adhesive applicator that requires no masking tape as described in claim 1, characterized in that, A glue gun handle (4-4) is fixed on the back cover (4-3) of the glue gun, and a glue injection button (4-2) is installed on the glue gun handle (4-4).

5. The self-forming curtain wall adhesive applicator that requires no masking tape as described in claim 1, characterized in that, The monitoring cavity (10) is equipped with a sensor cable groove (6) and a supplementary LED lamp (9).

6. The self-forming curtain wall adhesive applicator that requires no masking tape as described in claim 1, characterized in that, The glue outlet of the glue tube (1) is connected to the glue outlet cavity (11) through the glue tube cover plate (3).

7. The self-forming curtain wall adhesive applicator that requires no masking tape as described in claim 1, characterized in that, The glue dispensing monitoring sensor (7) points to the outlet of the glue dispensing chamber (11), and the glue quantity control sensor (8) points to the middle of the monitoring cavity (10).

8. The self-forming curtain wall adhesive applicator that requires no masking tape as described in claim 1, characterized in that, The dispensing cavity (11) and the adhesive surface shaping scraper (12) together form an integral adhesive molding module (13).