A contamination preventing adhesive cleaning device

Abstract

The utility model relates to the technical field of residual glue cleaning, and specifically discloses a glue cleaning device preventing pollution, which comprises an enclosed chamber and a blowing nozzle, and a nozzle inlet for the nozzle of a glue gun to extend into is formed on the enclosed chamber; the utility model further comprises a protection mechanism, the protection mechanism comprises two protection plates that can move closer to each other and away from each other; half-avoidance holes are arranged on the two protection plates, the half-avoidance holes are used to enclose the nozzle after the protection plates are moved closer to each other, and the passage area of the two half-avoidance holes after being enclosed is smaller than the nozzle inlet area. The utility model is used to solve the problem that the existing glue cleaning device is prone to polluting the visual sensor due to the large gap between the nozzle inlet and the nozzle, which leads to the splashing of residual glue during high-pressure glue cleaning.

Description

Technical Field

[0001] This utility model relates to the field of residual adhesive cleaning technology, specifically to an adhesive cleaning device for preventing pollution. Background Technology

[0002] In existing technologies, in order to ensure that the glue residue on the glue gun nozzle (also known as the nozzle) can be cleaned off when needed, multiple high-pressure air nozzles are often used to clean off the glue residue on the nozzle.

[0003] A glue gun nozzle residual glue cleaning device with patent publication number CN214440530U is described. When using this device, the glue gun nozzle needs to be horizontally inserted into a relatively enclosed space formed by a surrounding plate from the nozzle inlet. Then, the air nozzle is activated to spray high-pressure gas to blow off the residual glue on the nozzle and make it fall into the glue bucket below.

[0004] However, this technology currently has the following shortcomings: In order for the glue gun nozzle to quickly and without interference reach the nozzle inlet, the nozzle inlet must have an opening size much larger than the diameter of the nozzle itself. This means that after the nozzle is inserted, there is a relatively large gap between the nozzle and the edge of the nozzle inlet. This gap causes some residual glue to be atomized into fine glue particles or glue mist and sprayed outwards through this gap during high-pressure glue removal. Since automated glue application systems often use robots to hold the glue gun and are equipped with vision systems to detect the glue type, the vision sensors of these systems are usually located near the glue gun nozzle. This residual glue sprayed outwards through the gap inevitably contaminates the lens of the vision sensor.

[0005] As high-precision, high-value optical instruments, visual sensors are susceptible to damage if contaminated, directly leading to malfunction and impacting production quality and yield. Furthermore, cleaning contaminated sensors is not only a tedious process but also carries the risk of damaging the sensor itself. Utility Model Content

[0006] The present invention aims to provide a glue removal device to prevent contamination, thereby solving the problem that existing glue removal devices, due to the large gap between the nozzle inlet and the nozzle, cause residual glue to splash during high-pressure glue removal and easily contaminate the vision sensor.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A glue-cleaning device for preventing contamination includes an enclosing chamber and an air nozzle. The enclosing chamber has a nozzle inlet for the nozzle of a glue gun to enter. It also includes a protective mechanism, which includes two protective plates that can move closer together and further apart. Each of the two protective plates has a semi-avoiding hole, which is used to enclose the nozzle after the protective plates move closer together. The area of ​​the passage after the two semi-avoiding holes are enclosed is smaller than the area of ​​the nozzle inlet.

[0008] The principle and advantages of this solution are as follows: This solution adds a protective mechanism consisting of two movable protective plates at the nozzle inlet of the existing enclosed chamber. When the glue gun nozzle is inserted, it drives the two protective plates to close together, and the semi-evacuation holes on them together form a channel much smaller than the original nozzle inlet. This greatly limits the cross-sectional area of ​​residual glue splashing outwards, effectively blocking the path of most splashed glue particles or glue mist towards the vision sensor, reducing or even avoiding the problem of vision sensor contamination caused by high-pressure glue removal. Preferably, as an improvement, the channel profile formed by the two semi-evacuation holes is similar to the outer profile of the nozzle, so as to minimize the annular gap between the channel and the nozzle while ensuring the smooth passage of the nozzle, thereby achieving a near-dynamic sealing effect and suppressing splashing to the greatest extent.

[0009] Preferably, as an improvement, the semi-circular hole is a semi-circular hole.

[0010] Preferably, as an improvement, the wall of the semi-evacuation hole is fixed with an elastic sealing block.

[0011] Beneficial effects: This solution uses an elastic sealing block to bring the two protective plates together, completely filling the gap between the protective plates and the nozzle, further ensuring that residual adhesive inside the enclosure will not splash onto the vision sensor. The elastic sealing block (such as rubber, silicone, cloth strips, etc.) can adapt to nozzles of different diameters or shapes, compensating for manufacturing and assembly errors, and achieving a flexible and tight seal.

[0012] Preferably, as an improvement, the protective mechanism further includes a drive component for driving the two protective plates to move closer or further apart.

[0013] Preferably, as an improvement, the driving component is a swing cylinder, and the two protective plates are respectively connected to the two output shafts of the swing cylinder.

[0014] Preferably, as an improvement, the enclosed chamber is also fixedly provided with an annular inner enclosure, with the nozzle inlet facing the annular area of ​​the inner enclosure, so as to help form a higher air pressure zone in the annular area, improve the glue removal effect, and at the same time reduce the area of ​​the enclosed chamber and reduce costs.

[0015] Preferably, as an improvement, the inner enclosure is cylindrical, and multiple strip-shaped holes are evenly opened along the circumference of the inner enclosure's cylindrical wall. There are multiple air nozzles, each of which passes through a strip-shaped hole, so that the strip-shaped holes define the position of the air nozzles and ensure that the air nozzles are evenly distributed around the nozzle being cleaned, which helps to achieve uniform and efficient cleaning of residual glue from the nozzle.

[0016] Preferably, as an improvement, an oil cup is fixedly installed on the outside of the enclosure. The oil cup is used to hold sealing oil to prevent the adhesive from curing. After the nozzle has finished cleaning the adhesive or when it is in standby mode, its end is immersed in the sealing oil to isolate it from the air and prevent the residual adhesive inside and at the end of the nozzle from curing and clogging.

[0017] Preferably, as an improvement, the opening of the oil cup and the opening of the nozzle inlet are aligned to facilitate the insertion of the nozzle into the oil cup. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present invention.

[0019] Figure 2 for Figure 1 Front view sectional diagram.

[0020] Figure 3 for Figure 1 A bottom sectional view.

[0021] Figure 4 This is an exploded view showing only the installation relationship between the protective structure, the ceiling of the enclosure, the inner enclosure, and the air nozzles.

[0022] Figure 5 for Figure 1 A three-dimensional structural diagram of the two protective plates of the central protective mechanism after they are moved away from each other.

[0023] Figure 6 This is a top view of the protective mechanism of Embodiment 2 of this utility model when it has an elastic sealing block.

[0024] The reference numerals in the accompanying drawings include: enclosed chamber 1, nozzle inlet 11, air nozzle 2, protective mechanism 3, protective plate 31, semi-evacuation hole 311, driving component 32, inner enclosure 4, strip hole 41, oil cup 5, collection bucket 40, and elastic sealing block 6. Detailed Implementation

[0025] The following detailed description illustrates the specific implementation method: Example 1 Combination Figures 1 to 5 As shown, a decontamination device for removing adhesive includes an enclosed chamber 1, an air nozzle 2, a protective mechanism 3, and an inner enclosure 4.

[0026] The enclosed chamber 1 is a hollow cavity, including a side plate and a top plate. The top plate has a nozzle inlet 11 for the nozzle of the glue gun to extend into. Multiple air nozzles 2 are provided (the attached figure shows 6 air nozzles 2 as an example), which are evenly distributed and fixedly installed on the inner wall of the enclosed chamber 1 and connected to an external compressed air source through air pipes.

[0027] The protective mechanism 3 is located at the nozzle inlet 11 and includes two relatively movable protective plates 31 and a driving component 32. In this embodiment, the driving component 32 is preferably a swing cylinder. The two protective plates 31 are respectively fixedly mounted on the two output shafts of the swing cylinder. The swing cylinder 32 can drive the two protective plates 31 to swing closer or further apart. Each protective plate 31 has a semi-clear hole 311. When the two protective plates 31 are driven by the driving component 32 to move closer together, the two semi-clear holes 311 combine to form a complete channel that surrounds the nozzle of the glue gun. The cross-sectional area of ​​this channel is much smaller than the area of ​​the nozzle inlet 11.

[0028] As a further optimization of this embodiment, the semi-circular shape of the semi-avoiding hole 311 allows the channel formed after closing to better match the outer contour of the cylindrical nozzle.

[0029] Inside the enclosed chamber 1, a ring-shaped inner enclosure 4 is fixedly installed. This inner enclosure 4 is cylindrical, with its axis aligned with the center of the nozzle inlet 11. Multiple strip-shaped holes 41 are evenly distributed circumferentially on the cylindrical wall of the inner enclosure 4. The nozzle portion of the air nozzle 2 passes through the corresponding strip-shaped hole 41. The structure of the strip-shaped hole 41 provides positioning for the air nozzle 2, ensuring that all air nozzles 2 are precisely and evenly distributed around the nozzle. A collection bucket 40 is placed directly below the inner enclosure 4 to collect residual adhesive falling from it.

[0030] An oil cup 5 is also fixedly installed on the outer wall of the enclosure chamber 1. The oil cup 5 is used to hold sealing oil to prevent the colloid from curing. The opening direction of the oil cup 5 is consistent with the direction of the nozzle inlet 11 of the enclosure chamber 1.

[0031] In this embodiment, when glue removal is required, the protective plates 31 of the protective mechanism 3 are first controlled to move away from each other so that the nozzle inlet 11 is basically completely exposed, so that the robot can quickly insert the glue gun into the nozzle inlet 11 and extend into the annular area of ​​the inner enclosure; then the driving component 32 of the protective mechanism 3 is controlled to drive the two protective plates 31 to move closer to each other so that the protective plates 31 basically completely enclose the nozzle.

[0032] Subsequently, the air nozzle 2 is activated, and the high-pressure airflow cleans the nozzle by blowing it around. During this process, even if there is residual glue splashing, it will be blocked by the enclosure chamber 1, the inner barrier 4, and the protective plate 31, effectively confining the residual glue within the enclosure chamber 1. This greatly reduces or even avoids the risk of residual glue spraying out from the nozzle inlet 11 and contaminating the nearby vision sensor.

[0033] After the adhesive is removed, the nozzle can be retracted into the oil cup 5, allowing the end to be immersed in the sealing oil for anti-curing maintenance.

[0034] Example 2 Combination Figure 6 Example 2 is an improvement on Example 1, in which an elastic seal that fits tightly against the nozzle surface is also attached to the wall of the semi-evacuation hole 311.

[0035] After the two protective plates 31 are brought together by the elastic sealing block 6, the gap between the protective plate 31 and the nozzle is completely filled by the elastic sealing block 6, further ensuring that residual adhesive in the enclosure 1 will not splash onto the vision sensor. The elastic sealing block 6 (such as rubber, silicone, cloth strips, etc.) can adapt to nozzles of different diameters or shapes, compensate for manufacturing and assembly errors, and achieve a flexible and tight seal.

[0036] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A glue-cleaning device for preventing contamination, comprising an enclosed chamber and an air nozzle, wherein the enclosed chamber has a nozzle inlet for a glue gun nozzle to enter; characterized in that: It also includes a protective mechanism, which consists of two protective plates that can move closer together or further apart; each of the two protective plates is provided with a semi-evacuation hole, which is used to enclose the nozzle after the protective plates move closer together, and the channel area enclosed by the two semi-evacuation holes is smaller than the nozzle inlet area.

2. The anti-contamination adhesive removal device according to claim 1, characterized in that: The channel profile formed by the two semi-evacuation holes is similar to the outer profile of the nozzle.

3. The anti-contamination adhesive removal device according to claim 2, characterized in that: The semi-circular hole is a type of hole that provides ventilation.

4. The anti-contamination adhesive removal device according to claim 2, characterized in that: The wall of the semi-evacuation hole is fixed with an elastic sealing block.

5. The anti-contamination adhesive removal device according to claim 1, characterized in that: The protective mechanism also includes a drive component for moving the two protective plates closer together or further apart.

6. The anti-contamination adhesive removal device according to claim 5, characterized in that: The driving component is a swing cylinder, and the two protective plates are respectively connected to the two output shafts of the swing cylinder.

7. A decontamination device for removing adhesive according to any one of claims 1-6, characterized in that: The enclosed room is also fixedly equipped with a ring-shaped inner enclosure, with the gun nozzle inlet facing the annular area of ​​the inner enclosure.

8. The anti-contamination adhesive removal device according to claim 7, characterized in that: The inner enclosure is cylindrical, and multiple strip-shaped holes are evenly opened along the circumference of the inner enclosure's cylindrical wall. There are multiple air nozzles, each of which passes through a strip-shaped hole.

9. A glue-removing device for preventing contamination according to any one of claims 1-6 and 8, characterized in that: An oil cup is fixedly installed on the outside of the enclosed chamber. The oil cup is used to hold sealing oil to prevent the colloid from curing.

10. A glue-removing device for preventing contamination according to claim 9, characterized in that: The opening of the oil cup faces the same direction as the opening of the nozzle inlet.

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