Glass tube spraying device

Abstract

The invention relates to the technical field of spraying devices, and in particular to a glass tube spraying device, which is used to solve the problem of uneven spraying of a glass tube caused by blockage of an atomizing nozzle; the device comprises a feeding mechanism and a spraying mechanism, the glass tube is fed by the feeding mechanism, and the spraying mechanism sprays paint to the glass tube; the spraying mechanism comprises two atomizing nozzles, when one of the atomizing nozzles is blocked, the feeding speed of the feeding mechanism is reduced, and the spraying pressure of the other atomizing nozzle is reduced; the design of the double atomizing nozzles improves the spraying efficiency and enhances the fault tolerance of the system, when one of the nozzles is blocked for some reason, the system can automatically adjust the feeding speed and the spraying pressure of the unblocked nozzle to ensure uniform distribution of paint on the surface of the glass tube, and effectively avoid spraying defects caused by nozzle blockage.

Description

Technical Field

[0001] The invention relates to the technical field of spraying devices, in particular to a glass tube spraying device. Background Art

[0002] In the glass tube manufacturing industry, surface spraying of glass tubes is an important step in improving their functionality, aesthetics and protection.

[0003] Traditional glass tube spraying processes often rely on a single spraying device, which is particularly vulnerable to problems such as low spraying efficiency, uneven paint distribution or nozzle blockage. In particular, when the nozzle is blocked during the spraying process, if the spraying parameters cannot be adjusted in time, it is very easy to cause quality problems such as missing paint and uneven coating on the surface of the glass tube, which seriously affects the final quality of the product. Summary of the invention

[0004] The invention provides a glass tube spraying device to solve the problem of uneven spraying of the glass tube caused by clogging of an atomizing nozzle.

[0005] In order to alleviate the above technical problems, the technical solution provided by the present invention is:

[0006] A glass tube spraying device comprises a feeding mechanism and a spraying mechanism, wherein the spraying mechanism is connected to the spraying device and is close to the feeding mechanism, the glass tube is transported by the feeding mechanism, and the spraying mechanism sprays paint onto the glass tube;

[0007] The spraying mechanism includes two atomizing nozzles arranged on both sides of the glass tube transported by the feeding mechanism. When one of the atomizing nozzles is blocked, the feeding mechanism conveying speed is reduced and the spraying pressure of the other atomizing nozzle is reduced.

[0008] Furthermore, the feeding mechanism includes a vertical plate, a circular ring is rotatably connected to the vertical plate, a driving roller is connected to the circular ring and is rotatably arranged with a fixed axis, the driving rollers are three in number and are arranged in a circular array on the circular ring, the glass tube is inserted in the middle of the circular ring, the three driving rollers are all rollingly fitted with the glass tube, and when the circular ring rotates, the driving rollers rotate and revolve;

[0009] The driving roller drives the glass tube to rotate axially when the driving roller revolves, and drives the glass tube to slide axially when the driving roller rotates.

[0010] Furthermore, the feeding mechanism also includes a support, the driving roller is rotatably connected to the support, the end of the driving roller is connected to a first bevel gear, the support is rotatably connected to a second bevel gear meshing with the first bevel gear, the second bevel gear is coaxially connected to a cylindrical gear, and the vertical plate is connected to a gear ring meshing with the cylindrical gear.

[0011] Furthermore, a pressure detection mechanism is connected to the spraying mechanism, the spraying mechanism includes a supply pipe connected to the atomizing nozzle, the supply pipe is connected to the paint supply container, the pressure detection mechanism includes a monitoring pipe, the monitoring pipe is connected to the supply pipe, when the nozzle of the atomizing nozzle is clogged, the internal pressure of the supply pipe and the monitoring pipe increases, and the rotation speed of the ring decreases.

[0012] Furthermore, it also includes a conveying control mechanism, the conveying control mechanism includes a first sliding switch, the first sliding switch is arranged on the vertical plate, a motor for driving the ring to rotate is arranged in the vertical plate, and the first sliding switch is used to control the rotation speed of the motor;

[0013] The first sliding switch has a first sliding contact. When the internal pressure of the monitoring tube increases, the first sliding contact slides on the first sliding switch to reduce the rotation speed of the motor.

[0014] Furthermore, the pressure detection mechanism further comprises a first limiting ring and a second limiting ring connected to the monitoring tube, a plug is slidably arranged between the first limiting ring and the second limiting ring, and a first spring is connected between the plug and the second limiting ring;

[0015] The vertical plate is connected to a cylinder, a cylinder rod of the cylinder abuts against the first sliding contact, and an air pipe is connected between the monitoring tube and the cylinder.

[0016] Furthermore, the conveying control mechanism also includes a sliding frame, the sliding frame is connected to the vertical plate, the first sliding contact slides on the sliding frame, the sliding frame is connected to a second spring, and two ends of the second spring respectively resist the first sliding contact and the sliding frame.

[0017] Furthermore, the number of the cylinders is two, the two cylinders are connected to two monitoring pipes respectively, and the two cylinders are extended as the pressure of the corresponding monitoring pipes increases.

[0018] Furthermore, it also includes a pressure control mechanism, when one of the two atomizing nozzles is blocked, the pressure control mechanism controls the pressure of the paint supply container connected to the other atomizing nozzle to decrease.

[0019] Furthermore, the pressure control mechanism includes a pressure pump for pressurizing the paint supply container, a second sliding switch for controlling the pressure pump is connected to the vertical plate, and a second sliding contact of the second sliding switch is connected to the cylinder rod of the cylinder;

[0020] The number of the second sliding switches is two, and the two second sliding switches respectively control the pressure pumps connected to the atomizing nozzles on the opposite sides.

[0021] The beneficial effects of the present invention are analyzed as follows:

[0022] A glass tube spraying device comprises a feeding mechanism and a spraying mechanism. The glass tube is fed by the feeding mechanism and the spraying mechanism sprays paint onto the glass tube. The spraying mechanism comprises two atomizing nozzles. When one of the atomizing nozzles is blocked, the feeding speed of the feeding mechanism is reduced and the spraying pressure of the other atomizing nozzle is reduced.

[0023] The device transports the glass tube through a feeding mechanism, so that the glass tube rotates and moves axially at the same time, so that the atomizing nozzle can spray the paint onto the outer wall of the glass tube, and the spraying trajectory is spiral. Two atomizing nozzles are arranged, and the two atomizing nozzles are symmetrically arranged on both sides of the glass tube, but the two atomizing nozzles have a spacing in the moving direction of the glass tube, and this spacing is exactly the pitch of the spiral trajectory formed by the atomizing nozzle spraying onto the outer wall of the glass tube, so that the two atomizing nozzles spray two spiral trajectories to form a closed surface together, so that the outer wall of the glass tube is completely sprayed, and when one of the atomizing nozzles is blocked, the amount of paint sprayed by the atomizing nozzle is reduced, and the conveying speed of the glass tube is reduced at this time, preventing the surface of the glass tube from lacking spray material. At this time, the spraying pressure of the other unblocked atomizing nozzle is reduced, so that the discharge amount is reduced, that is, at this time, the discharge amount of the two atomizing nozzles is reduced, and the conveying speed of the glass tube is reduced synchronously, ensuring that the paint on the surface of the glass tube can be kept uniform and not affected by the blockage of the atomizing nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related technologies, the drawings required for use in the specific embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the feeding mechanism of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the cylindrical gear of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the pressure detection mechanism of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the conveying control mechanism of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the pressure control mechanism of the present invention.

[0031] icon:

[0032] 100, feeding mechanism; 110, vertical plate; 120, circular ring; 130, support; 140, driving roller; 150, first bevel gear; 160, second bevel gear; 170, cylindrical gear; 180, gear ring; 200, spraying mechanism; 210, atomizing nozzle; 220, supply pipe; 300, pressure detection mechanism; 310, monitoring pipe; 320, first limit ring; 330, plug; 340, first spring; 350, second limit ring; 360, air pipe; 400, conveying control mechanism; 410, first sliding switch; 420, sliding frame; 430, first sliding contact; 440, second spring; 450, cylinder; 460, cylinder rod; 500, pressure control mechanism; 510, second sliding contact; 520, second sliding switch. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] like Figure 1-Figure 6 As shown, a glass tube spraying device includes a feeding mechanism 100 and a spraying mechanism 200. The spraying mechanism 200 is connected to the spraying device and is close to the feeding mechanism 100. The glass tube is transported by the feeding mechanism 100, and the spraying mechanism 200 sprays paint onto the glass tube. The spraying mechanism 200 includes two atomizing nozzles 210 arranged on both sides of the glass tube transported by the feeding mechanism 100. When one of the atomizing nozzles 210 is blocked, the transport speed of the feeding mechanism 100 is reduced, and the injection pressure of the other atomizing nozzle 210 is reduced.

[0037] The working mechanism of the glass tube spraying device provided in this embodiment is as follows:

[0038] The device transports the glass tube through the feeding mechanism 100, so that the glass tube rotates and moves axially at the same time, so that the atomizing nozzle 210 can spray the paint onto the outer wall of the glass tube, and the spraying trajectory is spiral. Two atomizing nozzles 210 are provided, and the two atomizing nozzles 210 are symmetrically arranged on both sides of the glass tube. However, the two atomizing nozzles 210 have a spacing in the moving direction of the glass tube. This spacing is exactly the pitch of the spiral trajectory formed by the atomizing nozzle 210 spraying onto the outer wall of the glass tube, so that the two atomizing nozzles 210 spray two spiral trajectories in total. At the same time, a closed surface is formed, so that the outer wall of the glass tube is completely sprayed. When one of the atomizing nozzles 210 is blocked, the amount of paint sprayed by the atomizing nozzle 210 is reduced. At this time, the conveying speed of the glass tube is reduced to prevent the surface of the glass tube from lacking spray material. At this time, the spraying pressure of the other unblocked atomizing nozzle 210 is reduced, thereby reducing the discharge amount. That is, at this time, the discharge amounts of the two atomizing nozzles 210 are both reduced, and the conveying speed of the glass tube is synchronously reduced to ensure that the paint on the surface of the glass tube can be kept uniform and not affected by the blockage of the atomizing nozzle 210.

[0039] Regarding the structure of the feeding mechanism 100, specifically:

[0040] The feeding mechanism 100 includes a vertical plate 110, a circular ring 120 is rotatably connected to the vertical plate 110, and a driving roller 140 is connected to the circular ring 120 and is arranged to rotate with a fixed axis. There are three driving rollers 140, which are arranged in a circular array on the circular ring 120. The glass tube is inserted in the middle of the circular ring 120. The three driving rollers 140 are all rolled and fitted with the glass tube. When the circular ring 120 rotates, the driving rollers 140 rotate and revolve; when the driving rollers 140 revolve, they drive the glass tube to rotate axially. The driving roller 140 drives the glass tube to slide axially when it rotates. The feeding mechanism 100 also includes a support 130, the driving roller 140 is rotatably connected to the support 130, the end of the driving roller 140 is connected to a first bevel gear 150, the support 130 is rotatably connected to a second bevel gear 160 meshing with the first bevel gear 150, the second bevel gear 160 is coaxially connected to a cylindrical gear 170, and a gear ring 180 meshing with the cylindrical gear 170 is connected inside the vertical plate 110.

[0041] The vertical plate 110 is fixed on the spraying device, the circular ring 120 is driven to rotate by the motor, and the three driving rollers 140 are all in contact with the outer wall of the glass tube. When the circular ring 120 rotates, it can drive the support 130 to rotate synchronously. At this time, the support 130 drives the driving roller 140 to revolve around the circular ring 120, so that the driving roller 140 drives the glass tube to rotate axially. When the circular ring 120 rotates, the cylindrical gear 170 rotates synchronously with the circular ring 120. At this time, the cylindrical gear 170 rolls on the inner wall of the gear ring 180. At this time, the second bevel gear 160 rotates, so that the second bevel gear 160 drives the first bevel gear 150 to rotate synchronously. At this time, the driving roller 140 rotates, so that the glass tube is also driven by the rolling driving roller 140 to move axially when rotating, so that the glass tube is transported.

[0042] Regarding the structure of the pressure detection mechanism 300, specifically:

[0043] The spraying mechanism 200 is connected to a pressure detection mechanism 300, and the spraying mechanism 200 includes a supply pipe 220 connected to the atomizing nozzle 210, and the supply pipe 220 is connected to the paint supply container. The pressure detection mechanism 300 includes a monitoring pipe 310, and the monitoring pipe 310 is connected to the supply pipe 220. When the nozzle of the atomizing nozzle 210 is blocked, the internal pressure of the supply pipe 220 and the monitoring pipe 310 increases, and the rotation speed of the ring 120 decreases; the pressure detection mechanism 300 also includes a first limiting ring 320 and a second limiting ring 350 connected to the monitoring pipe 310, and a plug 330 is slidably arranged between the first limiting ring 320 and the second limiting ring 350, and a first spring 340 is connected between the plug 330 and the second limiting ring 350; the vertical plate 110 is connected to a cylinder 450, and the cylinder rod 460 of the cylinder 450 abuts against the first sliding contact 430, and an air pipe 360 ​​is connected between the monitoring pipe 310 and the cylinder 450.

[0044] The supply pipe 220 is connected to a paint supply container, and the paint supply container is pressurized by a pressure pump so that the paint is sprayed out through the atomizing nozzle 210. The pressure pump provides constant pressurization for the paint supply container, so that the atomizing nozzle 210 can spray the corresponding paint evenly. When the atomizing nozzle 210 is blocked and the spraying amount is reduced, the pressure in the corresponding supply pipe 220 increases, and this pressure is transmitted to the monitoring tube 310. The paint flows through the hole in the middle of the first limit ring 320 and pushes the plug 330, so that the plug 330 compresses the first spring 340. At this time, the medium in the space in the monitoring tube 310 on the side of the first spring 340 is transmitted to the cylinder 450 through the air pipe 360, so that the cylinder 450 extends and pushes the first sliding contact 430.

[0045] When the atomizing nozzle 210 is blocked, how to ensure that the spraying is still uniform, specifically:

[0046] The conveying control mechanism 400 includes a first sliding switch 410, which is arranged on the vertical plate 110. A motor for driving the ring 120 to rotate is arranged in the vertical plate 110, and the first sliding switch 410 is used to control the speed of the motor; the first sliding switch 410 has a first sliding contact 430, and when the internal pressure of the monitoring tube 310 increases, the first sliding contact 430 slides on the first sliding switch 410 to reduce the speed of the motor; the conveying control mechanism 400 also includes a sliding frame 420, which is connected to the vertical plate 110, and the first sliding contact 430 slides on the sliding frame 420. The sliding frame 420 is connected to a second spring 440, and the two ends of the second spring 440 are respectively against the first sliding contact 430 and the sliding frame 420; the number of cylinders 450 is two, and the two cylinders 450 are respectively connected to the two monitoring tubes 310, and the two cylinders 450 are respectively extended as the pressure of the corresponding monitoring tubes 310 increases.

[0047] When one of the atomizing nozzles 210 is blocked, a cylinder 450 on the same side thereof extends. If the blockage degree of the atomizing nozzle 210 is high, the pressure in the monitoring tube 310 increases greatly. At this time, the extension length of the cylinder rod 460 of the corresponding cylinder 450 increases, so that the pushing distance of the cylinder rod 460 on the first sliding contact 430 increases. At this time, the speed of the motor controlled by the first sliding switch 410 decreases, so that the speed of the ring 120 decreases, and the conveying speed of the glass tube decreases. When the atomizing nozzle 210 is blocked and the spraying amount decreases, the glass tube The conveying speed is simultaneously reduced, so that the glass tube can still be sufficiently covered by the coating. When both atomizing nozzles 210 are blocked, both cylinders 450 are extended, and only one of them is extended the longest, so that the conveying speed of the glass tube is reduced to the lowest speed that the two cylinders 450 can drive. When the blockage of the atomizing nozzle 210 is relieved, the first spring 340 elastically recovers to shorten the cylinder 450. When the cylinder 450 is shortened, the second spring 440 elastically recovers to reset the first sliding contact 430, so that the rotation speed of the ring 120 is restored, so that the conveying speed of the glass tube is restored.

[0048] Regarding the corresponding actions of the two atomizing nozzles 210 when blocked, specifically:

[0049] It also includes a pressure control mechanism 500. When one of the two atomizing nozzles 210 is blocked, the pressure control mechanism 500 controls the pressure of the paint supply container connected to the other atomizing nozzle 210 to decrease; the pressure control mechanism 500 includes a pressure pump for pressurizing the paint supply container, and a second sliding switch 520 for controlling the pressure pump is connected to the vertical plate 110, and the second sliding contact 510 of the second sliding switch 520 is connected to the cylinder rod 460 of the cylinder 450; the number of the second sliding switches 520 is two, and the two second sliding switches 520 respectively control the pressure pumps connected to the atomizing nozzles 210 on the opposite side.

[0050] When one of the atomizing nozzles 210 is blocked and the conveying speed of the glass tube is reduced, in order to ensure that the conveying speed of the glass tube is reduced and the other unblocked atomizing nozzle 210 sprays more paint onto the glass tube, the spraying amount of the other unblocked atomizing nozzle 210 needs to be reduced. Specifically, when the cylinder rod 460 of the cylinder 450 on the blocked side is extended, the second sliding contact 510 on the cylinder rod 460 slides on the second sliding switch 520, so that the second sliding switch 520 controls the pump speed of the pressure pump of the unblocked atomizing nozzle 210 on the opposite side to reduce, so that the spraying amount of the unblocked atomizing nozzle 210 is synchronously reduced, so that the surface of the glass tube is evenly sprayed.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A glass tube spraying device, characterized in that: It comprises a feeding mechanism (100) and a spraying mechanism (200), wherein the spraying mechanism (200) is connected to the spraying device and is close to the feeding mechanism (100), the glass tube is transported by the feeding mechanism (100), and the spraying mechanism (200) sprays paint onto the glass tube; The spraying mechanism (200) comprises two atomizing nozzles (210) arranged on both sides of the glass tube transported by the feeding mechanism (100); The feeding mechanism (100) comprises a vertical plate (110), a circular ring (120) being rotatably connected to the vertical plate (110), a driving roller (140) being connected to the circular ring (120) and rotatably arranged with a fixed axis, the driving rollers (140) being three in number and arranged in a circular array on the circular ring (120), the glass tube being inserted in the middle of the circular ring (120), and the three driving rollers (140) being rollingly fitted with the glass tube; The driving roller (140) drives the glass tube to rotate axially when it revolves, and drives the glass tube to slide axially when it rotates; The feeding mechanism (100) further comprises a support (130), the driving roller (140) being rotatably connected to the support (130), the end of the driving roller (140) being connected to a first bevel gear (150), the support (130) being rotatably connected to a second bevel gear (160) meshing with the first bevel gear (150), the second bevel gear (160) being coaxially connected to a cylindrical gear (170), and the vertical plate (110) being internally connected to a gear ring (180) meshing with the cylindrical gear (170); The conveying control mechanism (400) further comprises a first sliding switch (410), wherein the first sliding switch (410) is arranged on the vertical plate (110), a motor for driving the ring (120) to rotate is arranged inside the vertical plate (110), and the first sliding switch (410) is used to control the rotation speed of the motor; The first sliding switch (410) has a first sliding contact (430), and when the atomizing nozzle (210) is blocked, the first sliding contact (430) slides on the first sliding switch (410) to reduce the rotation speed of the motor; It also includes a pressure control mechanism (500) connected to the vertical plate (110), and when one of the two atomizing nozzles (210) is blocked, the pressure control mechanism (500) controls the pressure of the paint supply container connected to the other atomizing nozzle (210) to decrease; The spray mechanism (200) is connected to a pressure detection mechanism (300), the spray mechanism (200) comprises a supply pipe (220) connected to the atomizing nozzle (210), the supply pipe (220) is connected to a paint supply container, the pressure detection mechanism (300) comprises a monitoring pipe (310), the monitoring pipe (310) is connected to the supply pipe (220), when the nozzle of the atomizing nozzle (210) is clogged, the internal pressure of the supply pipe (220) and the monitoring pipe (310) increases, and the rotation speed of the ring (120) decreases; The pressure detection mechanism (300) further comprises a first limiting ring (320) and a second limiting ring (350) connected to the monitoring tube (310); a plug (330) is slidably arranged between the first limiting ring (320) and the second limiting ring (350); and a first spring (340) is connected between the plug (330) and the second limiting ring (350); The vertical plate (110) is connected to a cylinder (450), a cylinder rod (460) of the cylinder (450) abuts against the first sliding contact (430), and an air pipe (360) is connected between the monitoring tube (310) and the cylinder (450).

2. The glass tube spraying device according to claim 1, characterized in that: The conveying control mechanism (400) further comprises a sliding frame (420), wherein the sliding frame (420) is connected to the vertical plate (110), the first sliding contact (430) slides on the sliding frame (420), the sliding frame (420) is connected to a second spring (440), and two ends of the second spring (440) respectively abut against the first sliding contact (430) and the sliding frame (420).

3. The glass tube spraying device according to claim 2, characterized in that: The number of the cylinders (450) is two, and the two cylinders (450) are respectively connected to two monitoring pipes (310), and the two cylinders (450) are respectively extended as the pressure of the corresponding monitoring pipes (310) increases.

4. The glass tube spraying device according to claim 3, characterized in that: The pressure control mechanism (500) comprises a pressure pump for pressurizing the paint supply container, a second sliding switch (520) for controlling the pressure pump is connected to the vertical plate (110), and a second sliding contact (510) of the second sliding switch (520) is connected to the cylinder rod (460) of the cylinder (450); The number of the second sliding switches (520) is two, and the two second sliding switches (520) respectively control the pressure pumps connected to the atomizing nozzles (210) on the opposite sides.

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