Shadowless glue dispensing head with anti-blocking mechanism

Abstract

The utility model relates to the technical field of shadowless glue dispensing instruments, in particular to a shadowless glue dispensing head with an anti-blocking mechanism. Comprising a mounting plate, a dispensing barrel used for assembling shadowless glue is arranged on the mounting plate, a glue head of the dispensing barrel is arranged downwards, an air pump located on one side and an inert gas tank located on the other side are further mounted on the mounting plate, and a connecting pipe is communicated between the inert gas tank and an air inlet of the air pump; and an air spraying pipe communicated with an air outlet of the air pump is further arranged on the mounting plate, and a spraying head facing the glue head position of the glue dispensing barrel is arranged at the tail end of the air spraying pipe and used for spraying inert gas towards the glue head position to restrain solidification of the shadowless glue. According to the utility model, the inert gas tank is introduced, and the gas pump, the gas ejector pipe and the spray head are matched, so that inert gas is ejected to the glue head of the glue dispensing barrel, an inert gas environment is formed, moisture and alkaline substances in air are isolated, and shadowless glue is prevented from contacting with the components and being cured in advance, so that the effect of preventing the glue head from being blocked is achieved.

Description

Technical Field

[0001] This utility model relates to the field of UV-curing adhesive dispensing equipment, and in particular to a UV-curing adhesive dispensing head with an anti-clogging mechanism. Background Technology

[0002] A UV adhesive dispensing head is a tool or equipment component specifically designed for the precise application or dispensing of UV adhesive (i.e., UV glue or ultraviolet curing adhesive). As a special type of adhesive, UV glue can be rapidly cured under ultraviolet light of a specific wavelength, and is therefore widely used in industries such as electronics, optics, medical and jewelry to meet process requirements such as fixing, sealing and encapsulation.

[0003] Currently, in existing technologies, the dispensing head design of UV-curing adhesive dispensing machines is relatively simple, mainly consisting of a pressurization system and a dispensing needle. However, because UV-curing adhesive is particularly sensitive to moisture and alkaline substances, these components can cause premature curing. Considering the ubiquitous presence of moisture and alkaline substances in the environment, whether in the air or on object surfaces, this makes the dispensing area difficult to clean and easily leads to premature curing of the UV-curing adhesive, resulting in dispensing head clogging.

[0004] Therefore, it is necessary to develop a shadowless glue dispensing head with an anti-clogging mechanism to ensure smooth dispensing process, while extending equipment life and improving work efficiency. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a shadowless glue dispensing head with an anti-clogging mechanism.

[0006] The technical solution is as follows: A UV-curing adhesive dispensing head with an anti-clogging mechanism includes a mounting plate, a dispensing cylinder, an air pump, an inert gas tank, a connecting pipe, an air jet pipe, and a nozzle. The mounting plate is provided with a dispensing cylinder for assembling UV-curing adhesive, with the dispensing cylinder head facing downwards. An air pump located on one side and an inert gas tank located on the other side are also mounted on the mounting plate. A connecting pipe connects the inert gas tank and the air pump inlet. An air jet pipe connected to the air pump outlet is also provided on the mounting plate. A nozzle is provided at the end of the air jet pipe, pointing towards the dispensing cylinder head, to spray inert gas towards the head to inhibit the UV-curing adhesive from solidifying.

[0007] Furthermore, the nozzle has three nozzles, which are located at the top, middle and bottom and spaced apart, making it suitable for spraying inert gas over a wide area.

[0008] Furthermore, it also includes a heater, and a heater with a jet pipe is provided on the mounting plate for heating the jet gas.

[0009] Further, the guiding ring, the sliding rod and the wiping cotton are further included, the guiding ring is arranged on the outer wall of the glue head of the glue dispensing cylinder, the annular sliding groove is formed on the guiding ring, the sliding rod is arranged in the annular sliding groove in a sliding mode, and the wiping cotton for wiping moisture and alkaline substances is arranged at the bottom end of the sliding rod.

[0010] Further, the motor and the gear are further included, the motor is installed at the upper end of the sliding rod and has a downward output end, the gear is connected to the output end of the motor, and the outer wall of the guiding ring is circumferentially provided with the gear slot which is engaged with the gear, so as to drive the sliding rod and the wiping cotton to move and operate.

[0011] Further, the wiping cotton is in a semi-ring shape, and the gap of the wiping cotton is directed to the glue head of the glue dispensing cylinder.

[0012] Beneficial effects: 1, the utility model discloses a inert gas tank is introduced, utilizes the cooperation of air pump, air jet pipe and spray head to spray inert gas to the glue head of glue dispensing cylinder, forms inert gas environment, insulates moisture and alkaline substances in air, prevents shadowless glue from contacting these components and solidifies in advance, so as to prevent the effect of glue head blockage.

[0013] 2, the utility model discloses a heater, preheats the inert gas to be sprayed, reduces moisture and humidity in the environment, reduces the risk of shadowless glue solidification, further avoids the blockage of glue head.

[0014] 3, the utility model discloses the design of motor, gear and guiding ring, realizes the automatic movement of sliding rod and wiping cotton, automatically removes moisture and alkaline substances on the placement surface, keeps the glue dispensing environment clean, reduces the risk of shadowless glue premature solidification, effectively prevents the blockage of glue head. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0016] Figure 2 It is the three-dimensional structure schematic diagram of air pump, inert gas tank and connecting pipe and other parts of the utility model.

[0017] Figure 3 It is the three-dimensional structure schematic diagram of air jet pipe and spray head of the utility model.

[0018] Figure 4 It is the three-dimensional structure schematic diagram of guiding ring, sliding rod and wiping cotton and other parts of the utility model.

[0019] Drawing reference: 1, mounting plate, 2, glue dispensing cylinder, 3, air pump, 4, inert gas tank, 5, connecting pipe, 6, air jet pipe, 7, spray head, 8, heater, 9, guiding ring, 10, sliding rod, 11, wiping cotton, 12, motor, 13, gear. DETAILED DESCRIPTION

[0020] The present invention will now be described in detail with reference to the accompanying drawings.

[0021] Example: A shadowless adhesive dispensing head with an anti-clogging mechanism, such as... Figures 1-3 As shown, the device includes a mounting plate 1, a dispensing cylinder 2, an air pump 3, an inert gas tank 4, a connecting pipe 5, an air jet pipe 6, and a nozzle 7. The mounting plate 1 serves as the mounting carrier for the entire device, used to fix various components and providing a support platform for connection with external drive equipment. A dispensing cylinder 2 for assembling the UV-curing adhesive is located in the middle of the mounting plate 1, with the dispensing nozzle facing downwards. The dispensing cylinder 2 is used for temporary storage and to ensure accurate dispensing of the adhesive onto the target object. An air pump 3 is fixedly mounted on the right side of the mounting plate 1, and an inert gas tank 4 is located on the left side. The inert gas tank 4 stores inert gas, which is used to protect the UV-curing adhesive from moisture and alkaline substances in the environment after dispensing. A connection is established between the inert gas tank 4 and the air inlet of the air pump 3. Pipe 5 and air pump 3 are responsible for drawing inert gas from inert gas tank 4. A jet pipe 6 connected to the air outlet of air pump 3 is also provided on mounting plate 1. At the end of jet pipe 6, a nozzle 7 is provided facing the glue head of dispensing cylinder 2. The drawn inert gas is then transported to jet pipe 6 and then to nozzle 7. The bottom end of jet pipe 6 is bent towards the glue head of dispensing cylinder 2, so that nozzle 7 can be aligned with the dispensing point, thereby ensuring accurate spraying of inert gas. In addition, nozzle 7 has three nozzles, which are located at the top, middle and bottom and spaced apart, so that the three nozzles are placed at different heights to spray gas, thereby spraying inert gas over a wide area and forming a protective layer around the needle of dispensing cylinder 2 to inhibit the solidification of shadowless glue, thereby achieving the effect of preventing blockage.

[0022] like Figure 1 and Figure 2 As shown, it also includes a heater 8. The mounting plate 1 is also provided with a heater 8 fitted with a jet pipe 6, which is used to heat the inert gas to be sprayed, so that the inert gas can be sprayed out at a high temperature, thereby drying the moisture on the placement surface, reducing the influence of surrounding moisture, and preventing the UV adhesive from curing prematurely.

[0023] like Figure 4 As shown, it also includes a guide ring 9, a sliding rod 10, and a wiping cotton 11. A guide ring 9 is provided on the outer wall of the glue head of the glue dispensing cylinder 2. An annular groove is opened on the guide ring 9. The sliding rod 10 is slidably arranged in the annular groove. The bottom end of the sliding rod 10 is provided with a wiping cotton 11 for wiping away moisture and alkaline substances. The wiping cotton 11 is semi-annular, and its notch is facing the needle of the glue dispensing cylinder. In this way, the area around the needle can be cleaned to the maximum extent without affecting the glue dispensing operation, ensuring that the needle is clean before each glue dispensing.

[0024] likeFigure 4 The motor 12 and the gear 13 are also shown, the upper end of the sliding rod 10 is provided with the motor 12 with the output end downward, the gear 13 is connected to the output end of the motor 12, and the outer wall of the guide ring 9 is provided with a tooth groove in the circumferential direction for engaging with the gear 13, so as to drive the sliding rod 10 and the wiping cotton 11 to make a circular motion in the sliding groove, effectively removing the water and alkaline substances that may be attached to the placement surface, preventing these substances from entering the shadowless glue and causing premature solidification.

[0025] In use, the device is first installed on the required driving equipment through the mounting plate 1, and the glue dispensing cylinder 2 is connected to the preparation equipment, then the required inert gas is filled into the inert gas tank 4, and then the driving equipment can be started to drive the whole device to perform glue dispensing operation, at the same time, in the process of glue dispensing, the air pump 3 is started, the inert gas is extracted from the inert gas tank 4, transmitted to the air jet pipe 6 through the connecting pipe 5, and finally sprayed from the nozzle 7 towards the needle position of the glue dispensing cylinder 2. Because the nozzle 7 is designed with three nozzles, the airflow can be sprayed from three different heights, respectively, to ensure that the inert gas can uniformly cover the needle area of the glue dispensing cylinder 2, so that a protective layer of inert gas can be formed around the needle, isolating the moisture and alkaline substances in the air, thereby preventing the shadowless glue from solidifying prematurely and reducing the risk of clogging. At the same time, the heater 8 is started synchronously to heat the inert gas about to be sprayed, reducing the moisture and humidity in the environment, thereby reducing the possibility of shadowless glue solidification; at the same time, the motor 12 is started, the motor 12 drives the connected gear 13 to rotate, and synchronously engages with the tooth groove on the guide ring 9, so as to drive the sliding rod 10 to slide circularly on the sliding groove of the guide ring 9, thereby adjusting the position between the wiping cotton 11 and the glue head of the glue dispensing cylinder 2, so that the wiping cotton 11 can always be kept in front of the glue head, thereby wiping off the moisture and alkaline substances on the placement surface before glue dispensing operation, preventing these substances from entering the shadowless glue and causing premature solidification.

[0026] It should be understood that the above description is only for exemplary purposes and does not mean to limit the present application. Those skilled in the art will understand that the variations of the present application will be included in the scope of the claims herein.

Claims

1. A shadowless glue dispensing head with anti-blocking mechanism, comprising a mounting plate (1) and a glue dispensing cylinder (2), the mounting plate (1) is provided with a glue dispensing cylinder (2) for assembling shadowless glue, and the glue head of the glue dispensing cylinder (2) is arranged downwardly, characterized in that, Also include air pump (3), inert gas tank (4), connecting pipe (5), air pipe (6) and nozzle (7), the installation plate (1) is also installed on one side of the air pump (3), and the other side of the inert gas tank (4), the inert gas tank (4) and the air inlet of the air pump (3) are connected with connecting pipe (5), the installation plate (1) is also provided with air pipe (6) connected with the air outlet of the air pump (3), the nozzle (7) is provided at the end of the air pipe (6) towards the glue head position of the glue cylinder (2), for spraying inert gas to the glue head position to inhibit shadow glue solidification.

2. The shadow-free glue dotting head with anti-blocking mechanism according to claim 1, characterized in that, The nozzle (7) has three nozzles, which are located in the upper, middle and lower positions and are arranged at intervals, suitable for spraying inert gas in a wide range.

3. The shadow-free glue dotting head with anti-blocking mechanism according to claim 2, characterized in that, Also include a heater (8), the installation plate (1) is also provided with a heater (8) sleeved with the air pipe (6), for heating the sprayed gas.

4. The shadow-free glue dot applicator head with anti-blocking mechanism according to claim 3, characterized in that, Also include a guide ring (9), a sliding rod (10) and a wiping cotton (11), a guide ring (9) is provided on the outer wall of the glue head of the glue cylinder (2), an annular sliding groove is formed in the guide ring (9), a sliding rod (10) is slidably arranged in the annular sliding groove, and a wiping cotton (11) for wiping moisture and alkaline substances is arranged at the bottom end of the sliding rod (10).

5. The shadow-free glue dot applicator head with anti-blocking mechanism according to claim 4, wherein, Also include a motor (12) and a gear (13), a motor (12) with downward output end is installed on the upper end of the sliding rod (10), a gear (13) is connected to the output end of the motor (12), and a tooth groove is formed on the outer wall of the guide ring (9) in the circumferential direction, which is engaged with the gear (13), so as to drive the sliding rod (10) and the wiping cotton (11) to move.

6. The shadow-free glue dot applicator head with anti-blocking mechanism according to claim 5, wherein, The wiping cotton (11) is semicircular, and the gap is towards the glue head of the glue cylinder (2).

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