Anti-blocking device for sprayer of gluing machine

Abstract

The utility model relates to the field of gluing machines, and discloses a gluing machine nozzle anti-blocking device which comprises a main body mechanism, a protection mechanism is arranged at the front end of the main body mechanism, the main body mechanism comprises a flow guide pipe, a temporary storage tank and an air compressor, and an output pipe and a return pipe are fixedly arranged at the lower end of the flow guide pipe. Liquid pumps are fixedly arranged at the upper end and the lower end of the temporary storage tank, a control valve is fixedly arranged at the lower end of a backflow pipe, a filter screen fixedly sleeves the inner surface of an output pipe, the protection mechanism comprises a nozzle, three limiting rods, three spring telescopic blocks and a moving plate, and a first arc-shaped baffle is rotationally connected to the position, close to the upper end, of the front end of the nozzle. Second arc-shaped baffles are rotationally connected to the two sides, close to the lower end, of the front end of the nozzle, and a circular baffle is fixedly arranged at the front end of the first arc-shaped baffle. According to the device disclosed by the utility model, the curing process of glue can be slowed down, and redundant glue can be recycled.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of gluing machine, especially a kind of gluing machine nozzle anti-blocking device. BACKGROUND

[0002] Gluing machine is an automatic equipment, mainly used to evenly apply liquid glue to carton surface, and the nozzle of gluing machine is the core component of gluing machine, and its main working process is to deliver glue to the nozzle by air pressure, and the nozzle of gluing machine can spray glue in the form of fine beam to ensure uniform application. Gluing machine is widely used in electronic, automobile, household appliance, packaging, printing and other industries. Its use not only improves production efficiency and product quality, but also reduces labor cost and glue consumption, and reduces the impact on the environment.

[0003] As for the current gluing machine nozzle, after spraying is completed, a small amount of glue is often left at the nozzle. Since the glue has certain viscosity, the glue outside the nozzle may absorb dust, thereby accelerating the solidification process and possibly causing the nozzle to be blocked, affecting the use of the gluing machine. In addition, although the holes in the nozzle facilitate glue spraying, they may also allow the internal glue to come into contact with external air, causing water evaporation and affecting glue quality, and even possibly causing the glue near the nozzle to solidify, leading to nozzle blockage.

[0004] Therefore, the skilled person in the art provides a gluing machine nozzle anti-blocking device to solve the problems raised in the background art. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in the prior art and provides a gluing machine nozzle anti-blocking device. The device can slow down the solidification process of glue and also recycle excess glue for reuse.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A gluing machine nozzle anti-blocking device includes a main body mechanism, and a protection mechanism is arranged at the front end of the main body mechanism.

[0008] The main body mechanism includes a flow guide pipe, a temporary storage tank and an air compressor. The lower end of the flow guide pipe is fixedly provided with an output pipe and a return pipe. Liquid pumps are fixedly arranged at the upper and lower ends of the temporary storage tank. A control valve is fixedly arranged at the lower end of the return pipe. A filter screen is fixedly arranged on the inner surface of the output pipe. A heating screen is fixedly arranged inside the flow guide pipe near the rear end.

[0009] The protection mechanism comprises a nozzle, three limiting rods, three spring telescopic blocks and a moving plate, the front end of the nozzle is rotationally connected with a first arc-shaped baffle close to the upper end, both sides of the front end of the nozzle are rotationally connected with second arc-shaped baffles close to the lower end, the front end of the first arc-shaped baffle is fixedly provided with a circular baffle, both sides of the inside of the moving plate are fixedly provided with double-head electric push rods, the front end of the moving plate is slidably provided with scrapers close to the upper and lower ends, and the front end of the moving plate is fixedly provided with a control button.

[0010] Further, the temporary storage tank is located below the flow guide pipe, and the output end of one of the two liquid pumps close to the lower end is fixedly sleeved on the lower end of the temporary storage tank.

[0011] Further, the input end of one of the two liquid pumps close to the upper end is fixedly sleeved on the upper end of the temporary storage tank, and the output end of one of the two liquid pumps close to the upper end is fixedly connected with the lower end of the output pipe.

[0012] Further, the control valve is fixedly arranged on the upper end of the temporary storage tank, and the air compressor is fixedly arranged on the rear end of the flow guide pipe.

[0013] Further, the moving plate is slidably arranged in the flow guide pipe, and the nozzle is fixedly arranged on the front end of the flow guide pipe.

[0014] Further, the three spring telescopic blocks are fixedly arranged on the outer surface of the flow guide pipe close to the front end, the three limiting rods are fixedly arranged on the outer surfaces of the first arc-shaped baffle and the two second arc-shaped baffles respectively, and the three limiting rods are clamped with the three spring telescopic blocks respectively.

[0015] Further, the two sides of the two scrapers are fixedly connected with the upper and lower ends of the two double-head electric push rods respectively, and the control button is electrically connected with the two double-head electric push rods.

[0016] The utility model has the advantages of the following beneficial effects:

[0017] 1. The glue applicator nozzle anti-blocking device provided by the utility model, which is provided with a main body mechanism and a moving plate, can change the gas pressure in the flow guide pipe through an air compressor during use, so that a pressure difference is generated on both sides of the moving plate, and the moving plate moves along the horizontal direction, on the one hand, the moving plate can scrape off the excess glue from the inner wall of the flow guide pipe and make the excess glue flow back into the temporary storage tank, and on the other hand, the control button can be triggered only when the moving plate is close to the nozzle, and then the scrapers are opened, so that the internal glue can be isolated from the external environment, water evaporation is avoided, the quality of the glue is not affected, the smoothness of the glue is ensured, and the nozzle is prevented from being blocked, and the residual glue can be recycled.

[0018] 2. The glue applicator nozzle anti-blocking device, which is characterized in that the device is provided with a protection mechanism, arc-shaped baffles are arranged outside the nozzle in the using process, the structure of the surfaces of the three arc-shaped baffles is combined with the circular baffle, a protective cover can be formed outside the nozzle, on the one hand, the protective cover can protect the nozzle from being impacted, thereby affecting the use effect of the nozzle, on the other hand, the protective cover can isolate the nozzle from the outside world, thereby avoiding the nozzle blocking problem caused by dust sticking to glue. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Figure 1 is a schematic view of the shaft side of the utility model;

[0020] Figure 2 Figure 2 is a schematic view of the shaft side of the utility model in cross section;

[0021] Figure 3 Figure 3 is a schematic view of the shaft side of the utility model in cross section of the nozzle and the moving plate;

[0022] Figure 4 Figure 4 is a schematic view of the shaft side of the utility model in part after the protection mechanism is unfolded.

[0023] LEGEND:

[0024] 1, main mechanism; 101, flow guide pipe; 102, temporary storage tank; 103, liquid pump; 104, output pipe; 105, filter screen; 106, heating screen; 107, return pipe; 108, control valve; 109, air compressor; 2, protection mechanism; 201, nozzle; 202, No. 1 arc-shaped baffle; 203, No. 2 arc-shaped baffle; 204, circular baffle; 205, control button; 206, moving plate; 207, scraper; 208, double-head electric push rod; 209, limiting rod; 210, spring telescopic block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] WITH REFERENCE Figure 1 An embodiment provided by the utility model: a glue applicator nozzle anti-blocking device, which comprises a main mechanism 1, and the front end of the main mechanism 1 is provided with a protection mechanism 2.

[0027] Specifically, the main mechanism 1 is the main component in the device, and the protection mechanism 2 can protect the nozzle.

[0028] Referring to Figure 2 , the main body mechanism 1 comprises a flow guide pipe 101, a temporary storage tank 102 and an air compressor 109, the lower end of the flow guide pipe 101 is fixedly provided with an output pipe 104 and a backflow pipe 107, the upper and lower ends of the temporary storage tank 102 are both fixedly provided with a liquid pump 103, the lower end of the backflow pipe 107 is fixedly provided with a control valve 108, the inner surface of the output pipe 104 is fixedly sleeved with a filter screen 105, the inside of the flow guide pipe 101 is fixedly sleeved with a heating screen 106 near the rear end;

[0029] The temporary storage tank 102 is located below the flow guide pipe 101, the output end of one of the two liquid pumps 103 near the lower end is fixedly sleeved on the lower end of the temporary storage tank 102, the input end of one of the two liquid pumps 103 near the upper end is fixedly sleeved on the upper end of the temporary storage tank 102, the output end of one of the two liquid pumps 103 near the upper end is fixedly connected with the lower end of the output pipe 104, the control valve 108 is fixedly arranged on the upper end of the temporary storage tank 102, and the air compressor 109 is fixedly arranged on the rear end of the flow guide pipe 101;

[0030] Specifically, the flow guide pipe 101 is connected with the air compressor 109, the nozzle 201 and a container storing glue, so that the glue enters the flow guide pipe 101 and is sprayed out in a fine beam under the pushing of the compressed gas of the air compressor 109, and the glue can be uniformly sprayed to the surface of the carton, the temporary storage tank 102 is used for temporarily storing a small amount of glue, and the upper and lower ends of the temporary storage tank 102 are both provided with the liquid pump 103, the liquid pump 103 at the lower end can introduce the glue from the container storing a large amount of glue into the temporary storage tank 102, the liquid pump 103 at the upper end introduces the glue from the temporary storage tank 102 into the output pipe 104, the output pipe 104 is communicated with the temporary storage tank 102 and the flow guide pipe 101, the filter screen 105 in the output pipe 104 can filter the glue to ensure the smoothness of the glue, the heating screen 106 can heat the compressed gas generated by the air compressor 109, and slight heating can ensure the smooth flow of the glue, the backflow pipe 107 can introduce the excess glue into the temporary storage tank 102 for reuse, the control valve 108 controls the opening and closing of the backflow pipe 107, and the air compressor 109 is a device for compressing air, and the compressed air can scatter the glue into a fine beam, and the air compressor 109 is provided with a solenoid valve to control the direction of the output air.

[0031] Referring to Figures 2-4The protection mechanism 2 comprises a nozzle 201, three limiting rods 209, three spring telescopic blocks 210 and a moving plate 206, the front end of the nozzle 201 is rotationally connected with a first arc-shaped baffle 202 close to the upper end, the front end of the nozzle 201 is rotationally connected with two second arc-shaped baffles 203 close to the lower end on both sides, the front end of the first arc-shaped baffle 202 is fixedly provided with a circular baffle 204, the inside of the moving plate 206 is fixedly provided with double-headed electric push rods 208 close to both sides, the front end of the moving plate 206 is slidably provided with scrapers 207 close to the upper and lower ends, and the front end of the moving plate 206 is fixedly provided with a control button 205;

[0032] The moving plate 206 is slidably arranged in the flow guide pipe 101, the nozzle 201 is fixedly arranged at the front end of the flow guide pipe 101, the three spring telescopic blocks 210 are fixedly arranged at positions close to the front end of the outer surface of the flow guide pipe 101, the three limiting rods 209 are fixedly arranged on the outer surfaces of the first arc-shaped baffle 202 and the two second arc-shaped baffles 203 respectively, the three limiting rods 209 are clamped with the three spring telescopic blocks 210 respectively, the two sides of the two scrapers 207 are fixedly connected with the upper and lower ends of the two double-headed electric push rods 208 respectively, and the control button 205 is electrically connected with the two double-headed electric push rods 208.

[0033] Specifically, the nozzle 201 can uniformly spray glue to the carton in the form of fine beam, the first arc-shaped baffle 202, the two second arc-shaped baffles 203 and the circular baffle 204 can form a shape similar to a horizontally placed circular table, which can protect the nozzle 201 and separate the nozzle 201 from the external environment to prevent dust and residual glue of the nozzle 201 from mixing and slow down the volatilization of water in the glue, thereby reducing the probability of clogging of the nozzle, the control button 205 controls the extension and contraction of the double-headed electric push rod 208, the control button 205 is provided with a spring inside to realize the reset operation of the button, when the control button 205 is compressed, the double-headed electric push rod 208 is elongated, and when the control button 205 is reset, the double-headed electric push rod 208 is retracted, the scrapers 207 can move up and down to automatically clean the nozzle 201, reduce the residue of glue and control the closed state of the nozzle 201, the moving plate 206 slides along the inner wall of the flow guide pipe 101 under the pushing of compressed gas to push the excess glue into the backflow pipe 107 for recycling, the limiting rod 209 can rotate with the arc-shaped baffles, the limiting rod 209 is provided with holes on the surface and can be clamped with the spring telescopic block 210, when the limiting rod 209 is clamped with the spring telescopic block 210, the three arc-shaped baffles can be controlled at a fixed angle and in an unfolded state.

[0034] Working principle: when using the device, rotate the first arc-shaped baffle 202 and the two second arc-shaped baffles 203, press the spring telescopic block 210 to make it shrink, and then the hole on the limiting rod 209 is clamped on the corresponding spring telescopic block 210. Loosen the spring telescopic block 210, and the spring telescopic block 210 returns to its original state. The limiting rod 209 is clamped with the spring telescopic block 210, so that the limiting rod 209 and the three arc-shaped baffles are in a stable state, the nozzle 201 is exposed, the liquid pump 103 close to the lower end is started, the glue is transported to the temporary storage tank 102, and then the liquid pump 103 close to the upper end is started, the glue is continuously transported to the output pipe 104. Since the glue is stored in the container, some solidified nodules may appear, and when passing through the output pipe 104, the filter screen 105 can filter the glue, and then the glue enters the flow guide pipe 101. Then start the air compressor 109, and the compressed air is slightly warmed when passing through the heating net 106. The slightly warm temperature can ensure the smoothness of the glue, and the compressed air can scatter the glue.

[0035] In the movement of compressed air, since the two scrapers 207 are close to each other, the moving plate 206 is in a closed state, and the compressed air can push the moving plate 206 to move along the flow guide pipe 101 towards the nozzle 201. When the moving plate 206 and the nozzle 201 are attached, the control button 205 is pressed, the double-head electric push rod 208 is elongated, the two scrapers 207 are moved along the vertical direction, the two scrapers 207 are separated, and the moving plate 206 is hollow in the middle, which can ensure that the glue is uniformly sprayed from the nozzle 201 to the surface of the carton under the pushing of the compressed air.

[0036] When the use is finished, the control button 205 is reset under the action of the spring, the double-head electric push rod 208 is retracted, and then the two scrapers 207 are close to each other, one side of which is scraped inside the nozzle 201, and the other side of which is isolated from the inside glue and the outside. At this time, the flow guide pipe 101 is in a sealed state, the electromagnetic valve is controlled, the direction of the air flow in the air compressor 109 is changed, the gas in the flow guide pipe 101 is extracted, the moving plate 206 divides the flow guide pipe 101 into two spaces, and as the air is extracted, the space away from the flow guide pipe 101 has a smaller air pressure, so that the moving plate 206 moves away from the nozzle 201 under the action of the air pressure. In the moving process, the moving plate 206 can scrape the glue remaining on the inner surface of the flow guide pipe 101, and at the same time, the control valve 108 is opened, the glue is in a flowing state, the scraped glue flows into the return pipe 107, and finally returns to the temporary storage tank 102 for reuse.

[0037] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A glue spreader head anti-clogging device comprising a main body mechanism (1), characterized in that: The front end of the main body mechanism (1) is provided with a protection mechanism (2); The main body mechanism (1) comprises a flow guide pipe (101), a temporary storage tank (102) and an air compressor (109), the lower end of the flow guide pipe (101) is fixedly provided with an output pipe (104) and a backflow pipe (107), the upper and lower ends of the temporary storage tank (102) are both fixedly provided with a liquid pump (103), the lower end of the backflow pipe (107) is fixedly provided with a control valve (108), the inner surface of the output pipe (104) is fixedly sleeved with a filter screen (105), and the inside of the flow guide pipe (101) is fixedly sleeved with a heating screen (106) near the rear end; The protection mechanism (2) comprises a nozzle (201), three limiting rods (209), three spring telescopic blocks (210) and a moving plate (206), the front end of the nozzle (201) is rotatably connected with a first arc-shaped baffle (202) near the upper end, the front end of the nozzle (201) is rotatably connected with a second arc-shaped baffle (203) near the lower end on both sides, the front end of the first arc-shaped baffle (202) is fixedly provided with a circular baffle (204), the inside of the moving plate (206) is fixedly provided with a double-headed electric push rod (208) near both sides, the front end of the moving plate (206) is slidably provided with a scraper (207) near the upper and lower ends, and the front end of the moving plate (206) is fixedly provided with a control button (205).

2. The anti-blocking device for the glue applicator nozzle according to claim 1, characterized in that: The temporary storage tank (102) is located below the flow guide pipe (101), and the output end of one of the two liquid pumps (103) near the lower end is fixedly sleeved on the lower end of the temporary storage tank (102).

3. The anti-blocking device for the glue applicator nozzle according to claim 1, wherein: The input end of one of the two liquid pumps (103) near the upper end is fixedly sleeved on the upper end of the temporary storage tank (102), and the output end of the liquid pump (103) is fixedly connected with the lower end of the output pipe (104).

4. The anti-blocking device for the glue applicator nozzle according to claim 1, wherein: The control valve (108) is fixedly arranged on the upper end of the temporary storage tank (102), and the air compressor (109) is fixedly arranged on the rear end of the flow guide pipe (101).

5. The anti-blocking device for the glue spreader nozzle according to claim 1, characterized in that: The moving plate (206) is slidably arranged in the flow guide pipe (101), and the nozzle (201) is fixedly arranged on the front end of the flow guide pipe (101).

6. The anti-blocking device for the glue spreader nozzle according to claim 1, characterized in that: The three spring telescopic blocks (210) are all fixedly arranged on the outer surface of the flow guide pipe (101) near the front end, the three limiting rods (209) are respectively fixedly arranged on the outer surfaces of the first arc-shaped baffle (202) and the two second arc-shaped baffles (203), and the three limiting rods (209) are respectively clamped with the three spring telescopic blocks (210).

7. The anti-blocking device for the glue applicator nozzle according to claim 1, wherein: The two sides of the two scrapers (207) are respectively fixedly connected with the upper and lower ends of the two double-headed electric push rods (208), and the control button (205) is electrically connected with the two double-headed electric push rods (208).

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