CN216965002U

CN216965002U - Airless spraying equipment

Info

Publication number: CN216965002U
Application number: CN202220054211.3U
Authority: CN
Inventors: 刘振海
Original assignee: Nanjing Tangfeng Mechanical & Electrical Co ltd
Current assignee: Nanjing Tangfeng Mechanical & Electrical Co ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-07-15
Anticipated expiration: 2032-01-04

Abstract

The utility model provides an airless spraying equipment, which comprises a bracket, including a motor, an end cap, a controller, and a cover plate, drive mechanism, piston extraction mechanism, the inlet channel, liquid outlet pipe and spraying gun, inlet channel and liquid outlet pipe all communicate with piston extraction mechanism, spraying gun and liquid outlet pipe intercommunication, the motor configuration is to through drive mechanism drive piston extraction mechanism extraction liquid, liquid flows in from the inlet channel and gets into spraying gun through liquid outlet pipe outflow, drive mechanism includes reduction gears, be fixed in the first rolling disc of reduction gears's output, assemble in the second rolling disc of first rolling disc, the second rolling disc is eccentric design for first rolling axis, piston rod and second rolling disc movably are connected, the second rolling disc configuration is to relative first rolling disc eccentric rotation, the drive piston rod is straight reciprocating motion. This application realizes the motion to the piston rod through speed reduction structure and eccentric structure, can obtain accurate drive ratio, also can not appear the phenomenon of polluted environment such as hydraulic pressure mechanism oil leak, safe and reliable.

Description

Airless spraying equipment

Technical Field

The application relates to the field of spraying, especially, relate to an airless spraying equipment.

Background

The high-pressure airless spraying is that the coating is pressurized to 9.8-29.4 MPa by a pressure pump and then is sprayed out through a special olive-shaped nozzle small hole, and when the high-pressure paint flow rushes out of the nozzle and enters the atmosphere, the high-pressure paint flow is immediately cracked and expanded and is broken into superfine paint mist which is directly sprayed on the surface of a workpiece. The coating is pressurized to high pressure by the high-pressure pump, and the coating is not mixed with compressed air, so that the coating has the advantages of high coating efficiency, good coating quality, no environmental pollution and the like.

Generally, airless spraying is driven by a hydraulic mechanism, but the hydraulic mechanism cannot obtain an accurate transmission ratio, hydraulic oil is easy to leak and causes pollution, and in addition, the requirement of the hydraulic oil on temperature is high, and the airless spraying cannot normally work under high-temperature and low-temperature conditions.

Disclosure of Invention

Based on this, the application provides a can be suitable for different temperature environment and safe and reliable's airless spraying equipment.

The application provides an airless spraying equipment, spraying equipment includes the support, installs in motor, drive mechanism, piston extraction mechanism, inlet conduit, drain pipe and the spraying rifle of support, inlet conduit and drain pipe all communicate with piston extraction mechanism, the spraying rifle with the drain pipe intercommunication, the motor configuration is through drive mechanism drive piston extraction mechanism extraction liquid, and liquid flows in and gets into the spraying rifle through the drain pipe outflow from the inlet conduit, drive mechanism includes reduction gears and eccentric drive mechanism, eccentric drive mechanism is including the first rolling disc that is fixed in reduction gears's output, assemble in the second rolling disc of first rolling disc, the second rolling disc is eccentric design for first rolling shaft, piston extraction mechanism includes the piston rod, the piston rod with second rolling disc movably is connected, the second rotating disc is configured to rotate eccentrically relative to the first rotating disc and drive the piston rod to reciprocate linearly.

Further, drive mechanism still includes support bearing, the second rolling disc is located between support bearing and the first rolling disc, support bearing with first rolling disc is coaxial setting.

Further, the piston rod comprises a waist-shaped hole, and the second rotating disc is arranged in the waist-shaped hole.

Further, the longitudinal direction of the kidney-shaped hole is perpendicular to the direction of the linear reciprocating motion of the piston rod.

Further, the speed reducing mechanism is a gear speed reducing mechanism.

Further, the speed reduction mechanism includes at least two stages of speed reduction.

Further, the spray gun is a handheld spray gun, and the support is provided with a hanging frame for keeping the spray gun.

This application realizes the motion to the piston rod through speed reduction structure and eccentric structure, can obtain accurate drive ratio, also can not appear the phenomenon of polluted environment such as hydraulic pressure mechanism oil leak, safe and reliable.

Drawings

FIG. 1 is a schematic structural diagram of an airless spraying apparatus according to the present application;

FIG. 2 is a schematic structural diagram of a motor, a transmission mechanism and a piston rod of the airless spraying device shown in FIG. 1;

fig. 3 is a schematic view of an eccentric driving structure of the airless spray apparatus shown in fig. 1, which is different from fig. 2 in view angle.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The application provides an airless spraying equipment, spraying equipment includes the support, installs in motor, drive mechanism, piston extraction mechanism, feed liquor pipeline, liquid outlet pipe and the spraying rifle of support, feed liquor pipeline and liquid outlet pipe all communicate with piston extraction mechanism, the spraying rifle with the liquid outlet pipe intercommunication, motor configuration is through drive mechanism drive piston extraction mechanism extraction liquid, and liquid flows in and gets into the spraying rifle through liquid outlet pipe from the feed liquor pipeline, drive mechanism includes reduction gears and eccentric drive mechanism, eccentric drive mechanism is including the first rotating disk that is fixed in reduction gears's output, assemble in the second rolling disc of first rotating disc, the second rolling disc is eccentric design for first rotating shaft, piston extraction mechanism includes the piston rod, the piston rod with second rolling disc movably connects, the second rotary disc is configured to eccentrically rotate relative to the first rotary disc, and drives the piston rod to linearly reciprocate.

Referring to fig. 1 and 2, the present embodiment provides an airless spraying apparatus, which includes a bracket 1, a motor 2 mounted on the bracket 1, a transmission mechanism 3, a piston pumping mechanism 4, a liquid inlet pipe 51, a liquid outlet pipe 6, and a spraying gun 7. One end of the liquid inlet pipe 51 is used for communicating with a container (not shown) containing working liquid (such as paint), the other end of the liquid inlet pipe 51 and one end of the liquid outlet pipe 6 are both communicated with the piston drawing mechanism 4, and the other end of the liquid outlet pipe 6 is communicated with the spraying gun 7. When the motor 2 is started, the piston extraction mechanism 4 is driven to work through the transmission mechanism 3, and the working liquid passes through the liquid inlet pipeline 51, the piston extraction mechanism 4 and the liquid outlet pipeline 6 from the container in sequence and is finally sprayed out from the spraying gun. The working liquid is pressurized without air during the conveying process, so that the working liquid is called airless spraying equipment. The return line 52 is secured to the inlet line 51 for return flow of liquid.

Referring to fig. 2 and 3, the transmission structure 3 includes a speed reduction mechanism and an eccentric transmission mechanism, the speed reduction mechanism of the present embodiment is a gear transmission mechanism, and includes a first transmission gear 31, a second transmission gear 32 and a third transmission gear 33, the first transmission gear 31 is engaged with a ratchet (not shown) of a motor shaft, and the number of teeth of the ratchet is smaller than that of the first transmission gear 31, so as to implement a first-stage speed reduction; the second transmission gear 32 and the first transmission gear 31 are coaxially arranged and synchronously move, the second transmission gear 32 is meshed with the third transmission gear 33, and the number of teeth of the second transmission gear 32 is smaller than that of the third transmission gear 33, so that two-stage speed reduction is realized. In one embodiment, the reduction mechanism may further include more stages of reduction; in yet another embodiment, the reduction mechanism may also be a pulley drive.

The eccentric transmission mechanism comprises a first rotating disc 34 fixed at the output end of the speed reducing mechanism and a second rotating disc 35 assembled on the first rotating disc 34, the second rotating disc is in an eccentric design relative to the first rotating shaft, the piston drawing mechanism 4 comprises a piston rod 41, the piston rod 41 is movably connected with the second rotating disc 35, and the second rotating disc 35 is configured to eccentrically rotate relative to the first rotating disc 34.

Alternatively, the first rotary disc 34 is provided with an eccentric shaft, to which the second rotary disc 35 is rotatably mounted. The piston rod 41 includes a kidney-shaped hole 410, and the second rotating disc 35 is disposed in the kidney-shaped hole 410. The longitudinal direction of the kidney-shaped hole 410 is perpendicular to the direction of the linear reciprocating motion of the piston rod. The second rotary disk 35 is movable in the longitudinal direction in the kidney-shaped hole 410 while rotating with respect to the eccentric shaft, thereby achieving conversion of rotation into linear reciprocating motion.

Drive mechanism 3 still includes support bearing 36, second rolling disc 35 is located between support bearing 35 and the first rolling disc 34, support bearing 36 with first rolling disc 34 is coaxial setting, supports drive mechanism with other bearings jointly, and sufficient support stability can be guaranteed to coaxial setting.

The painting gun 7 of this embodiment is a hand-held painting gun and the holder further comprises a hanger 11 for hanging the painting gun 7. in other embodiments, the painting gun 7 may also be an automatic painting gun, which may be controlled by a stepper motor. The power plug 8 is used for supplying power to the motor 2, and in other embodiments, the motor 2 may also be powered by a removable dc power supply.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An airless spraying device comprises a bracket, a motor, a transmission mechanism, a piston extracting mechanism, a liquid inlet pipeline, a liquid outlet pipeline and a spraying gun, wherein the motor, the transmission mechanism, the piston extracting mechanism, the liquid inlet pipeline, the liquid outlet pipeline and the spraying gun are arranged on the bracket, the liquid inlet pipeline and the liquid outlet pipeline are both communicated with the piston extracting mechanism, the spraying gun is communicated with the liquid outlet pipeline, the motor is configured to drive the piston extracting mechanism to extract liquid through the transmission mechanism, the liquid flows into the liquid inlet pipeline and flows out through the liquid outlet pipeline to enter the spraying gun,

drive mechanism includes reduction gears and eccentric drive mechanism, eccentric drive mechanism is including the first rolling disc that is fixed in reduction gears's output and assemble in the second rolling disc of first rolling disc, the second rolling disc is eccentric design for first axis of rotation, piston extraction mechanism includes the piston rod, the piston rod with second rolling disc movably connects, the second rolling disc configuration is for first rolling disc eccentric rotation relatively, drives the piston rod is sharp reciprocating motion.

2. The airless spray apparatus of claim 1, wherein: the transmission mechanism further comprises a supporting bearing, the second rotating disc is located between the supporting bearing and the first rotating disc, and the supporting bearing and the first rotating disc are coaxially arranged.

3. The airless spray apparatus of claim 1, wherein: the piston rod comprises a waist-shaped hole, and the second rotating disc is arranged in the waist-shaped hole.

4. The airless spray apparatus of claim 3, wherein: the longitudinal direction of the waist-shaped hole is perpendicular to the linear reciprocating motion direction of the piston rod.

5. The airless spray apparatus of claim 1, wherein: the speed reducing mechanism is a gear speed reducing mechanism.

6. The airless spray device of claim 5, wherein: the speed reducing mechanism comprises at least two stages of speed reduction.

7. The airless spray apparatus of claim 6, wherein: the spray gun is a handheld spray gun, and the support is provided with a hanging frame for keeping the spray gun.