CN218554433U - Online spraying spray gun structure for rubber sealing strips - Google Patents

Abstract

The utility model discloses an online spraying spray gun structure of rubber seal strip, including the shell, there is the nozzle at the lower extreme fixed mounting of shell, and fixedly connected with air inlet joint on the lateral wall of shell, at the upper end fixedly connected with inlet pipe of shell, the upper end fixedly connected with feed connection of inlet pipe, the lower extreme of inlet pipe extends to nozzle department after passing the inner chamber of shell, the inner chamber of shell comprises flat wind storage chamber, cylindrical wind storage chamber and conical air-out chamber from last to down in proper order. The utility model discloses a spray gun mainly stores up wind department and is flat big cavity, can guarantee that wind pressure is in stable state all the time in the whole spray gun, and the spraying is more stable, then makes spray gun exit wind pressure more stable through cylindrical, conical cavity degressive compression's mode step by step, and export and nozzle are difficult for being adsorbed by coating and block up, "stifled rifle", "dodge rifle" phenomenon greatly reduced, and the spraying quality can be guaranteed.

Description

Online spraying spray gun structure for rubber sealing strips

Technical Field

The utility model relates to a rubber seal strip online spraying spray gun structure belongs to car sealing strip processing technology field.

Background

When the rubber sealing strip is sprayed on line, the structure of the spray gun is selected to be crucial, which not only influences the online spraying quality (such as stability, uniformity, bonding strength and the like) of the product, but also has certain influence on the operability, cost control, labor intensity and the like of the spraying operation.

The existing spray gun has the following structural characteristics and defects:

(1) The air inlet and the feed inlet are small, and the air output and the discharge capacity are small under the same air pressure and the same discharge rotating speed. The wind pressure is controlled between 0.2 and 0.4 during the general spraying operation, and the spraying rotating speed is controlled between 6 and 9rpm or even higher under the same pressure.

(2) The nozzle pipe diameter is small (phi 0.8), the fan-shaped atomization area is relatively small, the air outlet is a spiral gap, the airflow flow is small and easy to disperse, the atomization is not sufficient, and the atomized coating is easy to attach to the spiral gap or adsorb at the nozzle pipe orifice under the action of negative spraying pressure, so that the phenomena of 'gun blockage (no discharging)' and 'gun flash (intermittent spraying interruption)' during spraying are caused, and the spraying quality is seriously influenced.

(3) Spray gun clearance, change frequency are high among the spraying operation, and the spray gun dismantles loaded down with trivial details, and inside impurity is difficult to be washd. In order to ensure the spraying quality, the nozzle of the spray gun is generally required to be cleaned every 30min, the spray gun is required to be replaced every 4-6h, the spraying operation mode not only is difficult to ensure the spraying quality, but also greatly increases the labor intensity of workers.

(4) The replacement frequency of the spray gun is high (2-3 times per shift), and the time consumption is long (the average time for replacing one spray gun is 3-5 min, so that the waste loss amount is about 300-500 yuan).

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an online spraying spray gun structure of rubber seal strip, this spray gun can effectively save spraying material's use, and the atomizing is better, and difficult the jam is convenient for maintain and maintain to overcome not enough among the prior art.

The technical scheme of the utility model: the utility model provides a rubber seal strip online spraying spray gun structure, includes the shell, has the nozzle at the lower extreme fixed mounting of shell, and fixedly connected with air inlet connects on the lateral wall of shell, at the upper end fixedly connected with inlet pipe of shell, the upper end fixedly connected with feed connection of inlet pipe, the lower extreme of inlet pipe passes and extends to nozzle department behind the inner chamber of shell, the inner chamber of shell is from last to constituting by flat air storage chamber, cylindrical air storage chamber and conical air-out chamber down in proper order.

Further, the maximum diameters of the flat air storage cavity, the cylindrical air storage cavity and the conical air outlet cavity are gradually reduced.

Further, air inlet joint, feed connection and nozzle all with shell threaded connection.

Furthermore, the nozzle is in threaded connection with the outlet of the conical air outlet cavity of the shell, the lower end of the feeding pipe extends into the central hole of the nozzle, and the distance between the outer wall of the feeding pipe and the outer wall of the central hole of the nozzle is 0.3-0.8 mm.

Since the technical scheme is used, the utility model has the advantages of:

(1) The feed inlet and the air inlet are enlarged, and the air output and the discharge capacity are large under the same air pressure and the same discharge rotating speed. The wind pressure is less than or equal to 0.1Mpa in general spraying operation, and the spraying rotating speed is 4-6 rpm under the same pressure, so that the use of spraying materials can be effectively saved.

(2) The pipe diameter of the nozzle is large (phi 1.5), the sector atomization area is large, the distance between the nozzle of the spray gun and the surface of a part is long during spraying, the spraying liquid is atomized more fully, and the rotating speed is lower.

(3) The main wind department that stores up of spray gun is flat big cavity (can guarantee that the wind pressure is in steady state all the time in whole spray gun, and the spraying is more stable), then makes spray gun exit wind pressure more stable through cylindrical, conical cavity degressive compression's mode step by step, and export and nozzle are difficult for being adsorbed by coating and are blockked up, "block up the rifle", "dodge the rifle" phenomenon greatly reduced, and the spraying quality can be guaranteed.

(4) The frequency of cleaning and replacing the spray gun is reduced in the spraying operation process (the spray gun is replaced for 1 time/shift); the spray gun is simpler in structure, the feed inlet and the spray gun nozzle are of an integrated structure, the spray gun is fixed through threaded connection, the disassembly is quicker (the time for averagely replacing 1 spray gun is less than 1min after the spray integrated fixing tool is used), the cleaning is convenient and clean, and the labor intensity of workers is greatly reduced while the waste loss is reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of fig. 1.

Description of the reference numerals: 1-shell, 2-air inlet joint, 3-feeding joint, 4-nozzle, 5-flat air storage cavity, 6-cylindrical air storage cavity, 7-conical air outlet cavity and 8-feeding pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described in detail with reference to the accompanying drawings and examples.

The embodiment of the utility model provides a: the structural schematic diagram of the online spraying spray gun structure for the rubber sealing strip is shown in fig. 1 and fig. 2, and comprises a shell 1, wherein a nozzle 4 is fixedly installed at the lower end of the shell 1, an air inlet connector 2 is fixedly connected to the side wall of the shell 1, an inlet pipe 8 is fixedly connected to the upper end of the shell 1, an inlet connector 3 is fixedly connected to the upper end of the inlet pipe 8, the lower end of the inlet pipe 8 passes through the inner cavity of the shell 1 and then extends to the nozzle 4, and the inner cavity of the shell 1 sequentially consists of a flat air storage cavity 5, a cylindrical air storage cavity 6 and a conical air outlet cavity 7 from top to bottom; the maximum diameters of the flat air storage cavity 5, the cylindrical air storage cavity 6 and the conical air outlet cavity 7 are gradually reduced. The air inlet connector 2, the feeding connector 3 and the nozzle 4 are all in threaded connection with the shell 1, and replacement and cleaning are facilitated. The nozzle 4 is in threaded connection with an outlet of the conical air outlet cavity 7 of the shell 1, the lower end of the feeding pipe 8 extends into a central hole of the nozzle 4, and the distance between the outer wall of the feeding pipe 8 and the outer wall of the central hole of the nozzle 4 is 0.3-0.8 mm.

The utility model discloses a theory of operation:

(1) The utility model discloses increase feed inlet and air intake, the bore that the air inlet connects 2 promptly sets up to phi 10mm, and the bore that the feeding connects 3 sets up to phi 5, and the air output is big with the row's of arranging under the material rotational speed with the same wind pressure. The wind pressure is less than or equal to 0.1Mpa in common spraying operation, and the spraying rotating speed is 4-6 rpm under the same pressure, so that the use of spraying materials can be effectively saved.

(2) The caliber of the nozzle 4 is increased and set to be phi 1.5mm, the sector atomization area is large, the distance between the nozzle 4 and the surface of a part is long during spraying, the atomization of coating liquid is more sufficient, and the rotating speed is lower.

(3) The main wind department that stores up of spray gun is flat store up wind chamber 5 (can guarantee that wind pressure is in stable state all the time in whole spray gun, the spraying is more stable), then through cylindrical store up wind chamber 6 and conical air outlet chamber 7 mode of progressively reducing the compression step by step, make 4 exit wind pressure of nozzle more stable, export and nozzle 4 are difficult for being adsorbed by coating and block up, "stifled rifle", "dodge rifle" phenomenon greatly reduced, the spraying quality can be guaranteed.

(4) The frequency of cleaning and replacing the spray gun is reduced in the spraying operation process (the spray gun is replaced for 1 time/shift); the spray gun has the advantages that the structure is simpler, the feed inlet and the spray gun nozzle are of an integrated structure, the spray gun is fixedly connected through the threads, the disassembly is quicker (the time for replacing 1 spray gun averagely after the spraying integrated fixing tool is used is less than 1 min), the cleaning is convenient and clean, and the labor intensity of workers is greatly reduced while the waste loss is reduced.

Claims (4)

1. The utility model provides a rubber seal strip online spraying spray gun structure, includes shell (1), its characterized in that: there are nozzle (4) at the lower extreme fixed mounting of shell (1), and fixedly connected with air inlet connects (2) on the lateral wall of shell (1), at the upper end fixedly connected with inlet pipe (8) of shell (1), the upper end fixedly connected with feed connector (3) of inlet pipe (8), extend to nozzle (4) department after the lower extreme of inlet pipe (8) passes the inner chamber of shell (1), the inner chamber of shell (1) is from last to constituting by flat wind storage chamber (5), cylindrical wind storage chamber (6) and conical air outlet chamber (7) down in proper order.

2. The rubber sealing strip online spraying spray gun structure according to claim 1, characterized in that: the maximum diameters of the flat air storage cavity (5), the cylindrical air storage cavity (6) and the conical air outlet cavity (7) are gradually reduced.

3. The rubber sealing strip online spraying spray gun structure according to claim 1, characterized in that: the air inlet connector (2), the feeding connector (3) and the nozzle (4) are all in threaded connection with the shell (1).

4. The rubber sealing strip online spraying spray gun structure according to claim 2, characterized in that: the nozzle (4) is in threaded connection with an outlet of the conical air outlet cavity (7) of the shell (1), the lower end of the feeding pipe (8) extends into a center hole of the nozzle (4), and the distance between the outer wall of the feeding pipe (8) and the outer wall of the center hole of the nozzle (4) is 0.3-0.8 mm.

Images