WO2023221381A1 - 耐用高压无气喷涂机 - Google Patents

耐用高压无气喷涂机 Download PDF

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Publication number
WO2023221381A1
WO2023221381A1 PCT/CN2022/124861 CN2022124861W WO2023221381A1 WO 2023221381 A1 WO2023221381 A1 WO 2023221381A1 CN 2022124861 W CN2022124861 W CN 2022124861W WO 2023221381 A1 WO2023221381 A1 WO 2023221381A1
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WO
WIPO (PCT)
Prior art keywords
chamber
liquid inlet
pressure
plunger
cavity
Prior art date
Application number
PCT/CN2022/124861
Other languages
English (en)
French (fr)
Inventor
杨伟明
Original Assignee
浙江普莱得电器股份有限公司
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Publication of WO2023221381A1 publication Critical patent/WO2023221381A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • B05B9/0413—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material with reciprocating pumps, e.g. membrane pump, piston pump, bellow pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/08—Regulating by delivery pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1002—Ball valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/20—Filtering
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • the invention belongs to the technical field of spray coating machines, and specifically relates to a durable high-pressure airless spray coating machine.
  • the airless sprayer uses a plunger pump to pressurize the paint, and the high-pressure paint is transported to the spray gun through a high-pressure hose, and the pressure is released through the nozzle to form atomization, thereby forming a dense coating on the wall surface.
  • the plunger pump generally uses a reciprocating piston structure to pressurize the paint.
  • the plunger pump in the existing technology such as the utility model with patent number CN201920555917.6, discloses an airless sprayer.
  • the plunger pump in the utility model and The controllers that control the operation of the plunger pump are placed under the storage container. If the storage container leaks, the liquid paint will remain on the plunger pump and controller, thereby damaging the plunger pump and controller, or even causing damage. Short-circuiting the controller creates safety hazards and reduces the service life of the high-pressure airless sprayer.
  • the present invention proposes a durable high-pressure airless spraying machine.
  • a spraying machine including a housing, a liquid storage container, and a plunger pump.
  • the plunger pump includes a plunger chamber, a liquid inlet chamber, a liquid outlet chamber, and a pressure relief valve.
  • the bottom of the liquid storage container is connected to the liquid inlet chamber.
  • the plunger cavity is provided with a pressure protection device.
  • the plunger pump is arranged on one side of the liquid storage container and is lower than the lower end surface of the liquid storage container.
  • the plunger pump There is a control circuit board that controls the operation of the plunger pump.
  • the driving mechanism includes an adapter box fixedly connected to one end of the piston rod.
  • the adapter box is rotatably connected to the drive handle, and the other end of the drive handle is rotatably connected to the eccentric rotating structure.
  • At least one pair of balls are provided on both sides of the adapter box.
  • the plunger pump and the control circuit board are located on the side of the liquid storage container. Even if there is a problem with the seal at the bottom of the liquid storage container, the liquid flowing out will not affect the operation of the plunger pump and the control circuit board, ensuring that the plunger The pump is safe to use.
  • balls are symmetrically arranged on both sides of the transfer box of the present invention to limit the linear reciprocating motion of the transfer box. When the transfer box reciprocates and comes into contact with the balls, the balls will come into contact with the balls due to the linear passage of the transfer box. This in turn drives the balls to rotate, thereby greatly reducing the friction between the transfer box and the balls.
  • the adapter box does not have to be located in the middle of the balls on both sides. Even if it is slightly offset, it can be easily guided by the balls without increasing the friction of the linear reciprocating motion of the adapter box, making the assembly smooth. The tolerance rate is increased, making installation easier.
  • the bottom of the liquid storage container is provided with a liquid outlet, and the liquid inlet chamber and the liquid outlet are connected through a connecting chamber.
  • the liquid outlet is provided with a filter screen, and a reducing chamber with a smaller diameter than the liquid inlet chamber is provided between the liquid inlet chamber and the plunger chamber.
  • a liquid inlet ball valve is provided in the reducing chamber, and the reducing chamber faces the liquid inlet.
  • the liquid inlet ball valve will be stuck in the reducing cavity and the reducing cavity will be blocked.
  • the ejector pin can push the liquid inlet ball valve open.
  • the liquid outlet is provided with a filter screen, and a reducing chamber with a smaller diameter than the liquid inlet chamber is provided between the liquid inlet chamber and the plunger chamber.
  • a liquid inlet ball valve is provided in the reducing chamber, and the reducing chamber faces the liquid inlet.
  • the liquid inlet ball valve moves back and forth in the reducing chamber with the reciprocating motion of the piston of the plunger pump.
  • the liquid inlet ball valve moves back and forth in the reducing chamber with the reciprocating motion of the piston of the plunger pump.
  • the constant vibration of the filter screen can remove large particles that cannot pass through. The paint particles adhered to the filter screen are vibrated away to prevent the filter from being clogged due to long-term operation and resulting in a decrease in the ability of the plunger pump to pump paint.
  • the filter is located at the bottom of the liquid storage container.
  • the vibration of the filter will also drive the vibration of the paint in the liquid storage container, which can slow down the condensation time of the paint and keep the paint particles in a small particle state, which is consistent with the liquid output of the plunger pump.
  • the spray gun with connected cavities is also less likely to be blocked by paint during use, making the entire spray machine more durable.
  • a circle of the liquid outlet is provided with a concave step
  • the filter mesh is tightly mounted on the step
  • two grooves with a depth greater than the depth of the step are symmetrically provided on the step.
  • the setting of the groove reduces the contact surface between the steps and the filter screen.
  • the filter screen above the groove is more likely to be deformed by force, which saves effort when pressing the ejector rod.
  • a backstop is provided in the plunger cavity, one end of the backstop slightly extends into the reducing cavity, and a first compression spring is provided between the backstop and the liquid inlet ball valve.
  • the setting of the first compression spring can make the liquid inlet ball valve resist against the backing ring without external force, blocking the channel between the backing ring and the reducing chamber.
  • the liquid inlet ball valve is affected by the plunger pump. The suction force will move toward the plunger cavity, causing the liquid inlet ball valve to leave the retaining ring, thereby opening the channel between the retaining ring and the reducing chamber, allowing the paint to enter the plunger cavity, and then flow to the plunger pump.
  • the liquid outlet chamber sprays paint outward.
  • the push rod includes a first section perpendicular to the filter screen and a second section parallel to the liquid inlet chamber.
  • the first section and the second section are fixedly connected, and the connection between the first section and the second section is provided with an inclination. surface;
  • the connecting cavity is provided with a slope, which is located at the lower end of the inclined surface of the ejector rod, and the inclination rate of the slope is the same as the inclination rate of the inclined surface.
  • the slope restricts the inclined surface from sliding along the slope, causing the first section to move downward and simultaneously move horizontally toward the second section, allowing the second section to move horizontally, thereby pushing the liquid inlet ball valve to move.
  • the first section passes from the lower end of the filter screen to the upper end of the filter screen.
  • the first section goes up to the upper end of the filter.
  • the filter screen is slightly upwardly arched from all sides to the center. After the center of the filter screen is driven downward by the first section of the push rod, this structure of the filter screen is more conducive to the rebound of the filter screen.
  • the pressure protection device includes a pressure detection chamber communicated with the inside of the plunger chamber.
  • the pressure detection chamber is provided with a pressure detection rod that moves up and down in the pressure detection chamber as the pressure in the plunger chamber changes.
  • a microswitch is provided outside the pressure detection chamber, and a toggle lever for driving the microswitch is provided on the pressure detection rod.
  • the motor driving the plunger pump will stop running.
  • the motor will start to run and pressurize, so that the equipment is always in the in a safe state.
  • the microswitch is located outside the pressure detection chamber. Even if wear and leakage occurs in the pressure detection chamber, the microswitch will not be affected, which increases the durability of the pressure protection device.
  • an adjustment screw is provided at the end of the opposite plunger cavity of the pressure detection chamber, one end of the adjustment screw is deep into the pressure detection chamber, and a second compression spring is provided between the adjustment screw and the pressure detection rod.
  • the adjusting screw can be threaded to rotate in and out of the pressure detection chamber, thereby adjusting the pressure value of the second compression spring between the pressure detection chamber and the pressure detection rod, thereby adjusting the pressure of the pressure detection rod against the plunger pump, and detecting the displacement of the pressure detection rod through Pressure changes in the plunger pump.
  • the eccentric rotation structure includes a circular gear plate.
  • a driving column is provided on one side of the gear plate.
  • the center of the driving column is eccentric to the center of the gear plate.
  • a bearing is installed in the driving column.
  • the center of the bearing is installed.
  • One end of the reverse piston rod of the driving handle is provided with a circular through hole, and the diameter of the through hole is larger than The diameter of the driving column, the driving handle is sleeved on the driving column through the through hole.
  • the rotation of the gear plate drives the driving column to rotate.
  • the diameter of the driving column is smaller than the diameter of the through hole of the driving handle sleeved on the driving column.
  • the present invention has the following beneficial effects:
  • the plunger pump and the control circuit board of the present invention are both located on the side of the liquid storage container. Even if there is a problem with the sealing of the bottom of the liquid storage container, liquid flowing out will not affect the operation of the plunger pump and the control circuit board, ensuring that the plunger pump safe to use;
  • the setting of the ejector pin allows the ejector pin to push open the liquid inlet ball valve by pressing the ejector pin with external force when the liquid inlet ball valve blocks the reducing cavity;
  • the balls provided on both sides of the transfer box limit the transfer box to reciprocating linearly between the balls on both sides.
  • the balls will interact with the balls due to the linear passage of the transfer box. Contact, and then drive the ball to rotate, thereby greatly reducing the friction between the transfer box and the ball, increasing the driving efficiency of the plunger pump, and also prolonging the use time of the ball and the transfer box components, making the present invention more durable.
  • Figure 1 is a schematic structural diagram of the present invention
  • Figure 2 is a partial cross-sectional view of the present invention
  • Figure 3 is a schematic structural diagram of the push rod acting on the liquid inlet ball valve
  • Figure 4 is a schematic diagram of the plunger pump mechanism
  • Figure 7 is a schematic structural diagram of the eccentric rotation structure.
  • a spray coating machine includes a housing 1, a liquid storage container 2, and a plunger pump 3.
  • the plunger pump 3 includes a plunger chamber 4, a liquid inlet chamber 5, a liquid outlet chamber 6, and a pressure relief valve 7.
  • the bottom of the liquid storage container 2 is connected with the liquid inlet chamber 5
  • the plunger chamber 4 is provided with a pressure protection device
  • the plunger pump 3 is arranged on one side of the liquid storage container 2 and the plunger pump 3 is lower than the liquid storage container
  • the plunger pump 3 is provided with a control circuit board 8 for controlling the operation of the plunger pump 3.
  • the plunger pump 3 and the control circuit board 8 are located on the side of the liquid storage container 2. Even if there is a problem with the sealing of the bottom of the liquid storage container 2, the liquid flowing out will not affect the operation of the plunger pump 3 and the control circuit board 8, ensuring The plunger pump 3 is safe to use.
  • a liquid outlet 9 is provided at the bottom of the above-mentioned liquid storage container 2 , and the liquid inlet chamber 5 and the liquid outlet 9 are connected through a connecting cavity 20 .
  • a circle of the liquid outlet 9 is provided with a concave step 10, and the filter screen 12 is tightly mounted on the step 10.
  • the filter screen 12 is slightly arched upward from the surroundings to the center. Two grooves 11 with a depth greater than the depth of the step 10 are symmetrically provided on the step 10 .
  • the liquid outlet 9 is provided with a filter screen 12, and a reducing chamber 15 with a smaller diameter than the liquid inlet chamber 5 is provided between the liquid inlet chamber 5 and the plunger chamber 4.
  • a liquid inlet ball valve 17 is provided in the reducing chamber 15.
  • the end of the cavity 15 facing the liquid inlet chamber 5 is provided with an annular retaining ring 16 whose inner diameter is smaller than the diameter of the liquid inlet ball valve 17.
  • the plunger cavity 4 is provided with a backstop 18, and one end of the backstop 18 slightly extends into the variable diameter.
  • the cavity 15 is provided with a first compression spring 19 between the support column 18 and the liquid inlet ball valve 17 .
  • the filter screen 12 is provided with a push rod. One end of the push rod extends into the reducing chamber 15 to the front end of the liquid inlet ball valve 17. The end of the push rod can further extend into the reducing chamber 15 to push open the liquid inlet ball valve 17.
  • the liquid inlet ball valve 17 will stick in the reducing chamber 15 and the liquid inlet chamber 5 will be blocked. By pressing the ejector pin with external force, the ejector pin can push the liquid inlet ball valve 17 open.
  • the above-mentioned push rod includes a first section 13 perpendicular to the filter screen 12 and a second section 14 parallel to the liquid inlet chamber 5.
  • the first section 13 passes from the lower end of the filter screen to the upper end of the filter screen 12, and the first section is located at The center of the filter 12.
  • the first section 13 and the second section 14 are fixedly connected, and an inclined surface 21 is provided at the connection between the first section 13 and the second section 14; a slope 22 is provided in the connecting cavity 20, and the slope 22 is located on the inclined surface of the push rod.
  • the slope 22 has the same slope as the slope 21.
  • the slope 22 restricts the inclined surface 21 to only slide along the slope 22, so that the first section 13 moves downward and horizontally in the direction of the second section 14, so that the second section 14 can move horizontally, thereby pushing the liquid inlet ball valve 17 to move. .
  • the pressure protection device includes a pressure detection chamber 23 connected to the inside of the plunger chamber 4.
  • the pressure detection chamber 23 is provided with a device that moves up and down in the pressure detection chamber 23 as the pressure in the plunger chamber 4 changes.
  • the moving pressure detection rod 24 is provided with an adjustment screw 27 at the end of the reverse plunger chamber 4 of the pressure detection chamber 23.
  • One end of the adjustment screw 27 goes deep into the pressure detection chamber 23, and is between the adjustment screw 27 and the pressure detection rod 24.
  • the adjusting screw 27 can be threaded to rotate in and out of the pressure detection chamber 23, thereby adjusting the pressure value of the second compression spring 28 between the pressure detection chamber 23 and the pressure detection rod 24, thereby adjusting the pressure of the pressure detection rod 24 against the plunger pump 3,
  • the pressure change in the plunger pump 3 is detected by the displacement of the pressure detection rod 24 .
  • a micro switch 25 is provided outside the pressure detection chamber 23 , and a toggle lever 26 is provided on the pressure detection rod 24 to drive the micro switch 25 .
  • the switch 25 acts to stop the motor driving the plunger pump 3.
  • the micro switch 25 is located outside the pressure detection chamber 23. Even if wear occurs in the pressure detection chamber 23 and liquid leaks, the micro switch 25 will not be affected, which increases the durability of the pressure protection device.
  • a piston in the plunger chamber 4, and a piston rod 29 is fixed at one end of the piston.
  • the piston rod 29 is driven by a driving mechanism to make it reciprocate.
  • the driving mechanism includes a piston fixedly connected to one end of the piston rod 29.
  • the transfer box 30 is rotatably connected to the driving handle 32.
  • the other end of the driving handle 32 is rotatably connected to the eccentric rotating structure.
  • Two pairs of balls 31 are provided on both sides of the transfer box 30.
  • the symmetrically arranged balls 31 on both sides of the transfer box 30 limit the transfer box 30 to only reciprocate linearly between the balls 31 on both sides. When the transfer box 30 reciprocates and contacts the balls 31, the balls 31 will rotate due to the reciprocating movement.
  • the straight line of the adapter box 30 passes through and comes into contact with the ball 31, thereby driving the ball 31 to rotate, thereby greatly reducing the friction between the adapter box 30 and the ball 31, increasing the driving efficiency of the plunger pump 3, and also prolonging the The service life of the components of the ball 31 and the adapter box 30 is shortened, so that the present invention has a longer service life.
  • the above-mentioned eccentric rotation structure includes a circular gear plate 33.
  • a driving column 34 is provided on one side of the gear plate 33.
  • the center of the driving column 34 is eccentric to the center of the gear plate 33.
  • a bearing 35 is provided inside the driving column 34.
  • a mounting post 36 is installed in the center of the gear plate 33.
  • the mounting post 36 passes through the center of the gear plate 33.
  • One end of the drive handle 32 reverses the piston rod 29 and is provided with a circular through hole 37.
  • a needle roller bearing 38 is provided in the through hole 37.
  • the handle 32 is sleeved on the driving column 34 through a needle bearing.
  • the rotation of the gear plate 33 drives the driving column 34 to rotate, and the eccentric rotation of the driving column 34 drives the through hole of the driving handle 32 to rotate eccentrically, so that the other end of the driving handle 32 performs linear reciprocating motion under the limitation of the adapter box 30 .
  • One end of the ejector rod extends into the retaining ring 16 and presses against the liquid inlet ball valve 17.
  • the end of the ejector rod can further extend into the reducing chamber 15 to push open the liquid inlet ball valve 17.
  • One end of the push rod is pressed against the liquid inlet ball valve 17.
  • the liquid inlet ball valve 17 reciprocates with the piston of the plunger pump 3.
  • the filter screen 12 will not The stopped vibration can shake off large paint particles that cannot pass through the filter screen 12 and adhere to the filter screen 12, preventing the filter screen 12 from being blocked due to long-term operation and resulting in a decrease in the ability of the plunger pump 3 to suck paint.
  • the filter 12 is located at the bottom of the liquid storage container 2. The vibration of the filter 12 will also drive the vibration of the paint in the liquid storage container 2, which can slow down the condensation time of the paint and keep the paint particles in a small particle state.
  • the outlet of the spray gun connected to the liquid outlet chamber 6 of the pump 3 is not easily blocked by paint during use, making the entire spray machine more durable.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)

Abstract

一种耐用高压无气喷涂机，包括壳体(1)、储液容器(2)、柱塞泵(3)，柱塞泵(3)包括柱塞腔(4)、进液腔(5)、出液腔(6)和泄压阀(7)，储液容器(2)的底部和进液腔(5)联通，柱塞腔(4)上设有压力保护装置，柱塞泵(3)设置于储液容器(2)的一侧且柱塞泵(3)低于储液容器(2)的下端面；柱塞腔(4)内设有活塞，活塞的一端固定设有活塞杆(29)，活塞杆(29)通过驱动机构驱动使其往复运动，驱动机构包括和活塞杆(29)的一端固定连接的转接箱(30)，转接箱(30)转动连接驱动柄(32)，驱动柄(32)的另一端转动连接在偏心旋转结构上。该喷涂机使用安全。

Description

耐用高压无气喷涂机 技术领域
本发明属于喷涂机技术领域，具体涉及一种耐用高压无气喷涂机。
 背景技术
无气喷涂机利用柱塞泵将涂料增压，获得高压的涂料通过高压软管输送到喷枪，经由喷嘴释放压力形成雾化，从而在墙体表面形成致密的涂层的喷涂设备。柱塞泵一般采用往复活塞结构给涂料增压，现有技术中的柱塞泵如专利号为CN201920555917.6的实用新型，公开了一种无气喷涂机，该实用新型中的柱塞泵和控制柱塞泵工作的控制器都设置在贮料容器的下方，如果贮料容器发生泄露，液体涂料会留到柱塞泵和控制器上进而破坏柱塞泵和控制器，更有甚者会使控制器短路，存在安全隐患，减少了高压无气喷涂机的使用寿命。
又如专利号为CN201510188235.2的发明，公开了一种高压无气喷涂机柱塞泵，该发明中斜盘顶压平衡柱和活塞实现活塞的往复运动，斜盘是倾斜的，每次的往复运动都需要克服斜盘和平恒柱之间的摩察力，不仅仅会使他们之间加速磨损，也会增加斜盘的驱动阻力，降低柱塞泵的效率，从而减少了高压无气喷涂机的使用寿命。
 技术问题
现有技术中的高压无气喷涂机使用寿命有待提高。
 技术解决方案
本发明针对现有技术中高压无气喷涂机的使用寿命还可以加长的问题，提出了一种耐用高压无气喷涂机。
本发明的发明目的是通过以下技术方案实现的：一种喷涂机，包括壳体、储液容器、柱塞泵，柱塞泵包括柱塞腔、进液腔、出液腔和泄压阀，储液容器的底部和进液腔联通，柱塞腔上设有压力保护装置，所述柱塞泵设置于储液容器的一侧且柱塞泵低于储液容器的下端面，柱塞泵上设有控制柱塞泵运行的控制电路板。所述柱塞腔内设有活塞，所述活塞的一端固定设有活塞杆，活塞杆通过驱动机构驱动使其往复运动，所述驱动机构包括和活塞杆的一端固定连接的转接箱，转接箱转动连接驱动柄，驱动柄的另一端转动连接在偏心旋转结构上，转接箱的两侧设有至少一对滚珠。
上述方案中，柱塞泵和控制电路板均位于储液容器的侧面，即使储液容器底部密封出现问题，有液体流出也不会影响到柱塞泵和控制电路板的运行，保证了柱塞泵的使用安全。而且本发明的转接箱两侧分别对称设置了滚珠来限定转接箱直线往复运动，当转接箱往复运动而和滚珠接触时，滚珠会因为转接箱的直线通过而和滚珠产生接触，进而带动滚珠自转，从而大大的减少了转接箱和滚珠之间的摩擦力，曾加了柱塞泵的驱动效率，减少了部件之间的磨损，延长了滚珠和转接箱的部件使用时间，使本发明更加的耐用。并且通过滚珠的滚动导向作用，转接箱不一定要位于两侧滚珠的中间，即使有点偏移也可以通过滚珠轻松导向而不会增加转接箱的直线往复运动的摩察力，使得装配的容差率增大，更方便安装。
作为优选，所述储液容器的底部设有出液口，进液腔和出液口通过连接腔连通。
作为优选，所述出液口上设有过滤网，进液腔和柱塞腔之间设有直径小于进液腔的变径腔，变径腔内设有进液球阀，变径腔朝向进液腔的端部一周设有内直径小于进液球阀直径的圆环形挡圈；过滤网上设有顶杆，顶杆的一端伸入变径腔至进液球阀的前端，顶杆的端部可进一步伸入变径腔将进液球阀顶开。如果喷涂机长时间不使用会导致进液球阀粘连在变径腔内导致变径腔堵住，通过外力按压顶杆，可以使顶杆将进液球阀顶开。
作为优选，所述出液口上设有过滤网，进液腔和柱塞腔之间设有直径小于进液腔的变径腔，变径腔内设有进液球阀，变径腔朝向进液腔的端部一周设有内直径小于进液球阀直径的圆环形挡圈；过滤网上设有顶杆，顶杆的一端伸入挡圈顶在进液球阀上，顶杆的端部可进一步伸入变径腔将进液球阀顶开。顶杆的一端顶在进液球阀上，除了在进液球阀堵住变径腔的时候手动将进液球阀顶开以外，进液球阀随着柱塞泵的活塞往复运动而来回在变径腔内移动的时候，每次进液球阀回到顶杆的端部位置都会击打到顶杆，从而使过滤网发生振动，在喷涂机运行过程中，过滤网不停的振动可以将大颗粒的不能通过过滤网而粘附在过滤网上的涂料颗粒振掉，防止长时间运行而堵塞过滤网导致柱塞泵抽吸涂料的能力下降。并且过滤网位于储液容器的底部，过滤网的振动也会带动储液容器内的涂料的振动，可以减缓涂料的凝结时间，使涂料颗粒一直维持在小颗粒状态，与柱塞泵的出液腔相连的喷枪在使用过程中也不容易被涂料堵住出口，使得整个喷涂机更加耐用。
作为优选，所述出液口的一圈设有内凹的台阶，过滤网紧配合的安装在台阶上，台阶上对称设有深度大于台阶深度的两个沟槽。沟槽的设置使台阶和过滤网一周的接触面减少，在沟槽上方的过滤网更容易受力变形，在按压顶杆的时候更省力。
作为优选，所述柱塞腔内设有抵柱，抵柱的一端略伸入变径腔，在抵柱和进液球阀之间设有第一压簧。第一压簧的设置可以使进液球阀在没有外力的情况下抵靠在挡圈，堵住挡圈和变径腔之间的通道，当柱塞泵工作时，进液球阀受柱塞泵的抽力作用会往柱塞腔方向移动，使进液球阀离开挡圈，进而使挡圈和变径腔之间的通道打开，让涂料得以进入柱塞腔内，进而流通到柱塞泵的出液腔向外喷射涂料。
作为优选，所述顶杆包括垂直于过滤网的第一段和平行于进液腔的第二段，第一段和第二段固定连接，第一段和第二段的连接处设有倾斜面；所述连接腔内设有斜坡，该斜坡位于顶杆的倾斜面的下端，斜坡的倾斜率和倾斜面的倾斜率相同。斜坡限制了倾斜面只能沿着斜坡滑动，使第一段向下移动的同时向第二段方向水平移动，使得第二段得以水平移动，进而推动进液球阀移动。
作为优选，所述第一段从过滤网的下端上穿至过滤网的上端。第一段上穿至过滤网的上端，在需要手动按压顶杆的时候，方便按压，不需要通过按压过滤网来给顶杆施加压力，过滤网的中心形变最大，可以节省力气。
作为优选，所述过滤网由四周向中心略微向上拱起。过滤网的中心在被顶杆的第一段下移带动而下移后，过滤网的这种结构更有利于过滤网回弹。
作为优选，所述压力保护装置包括和柱塞腔内部连通的压力检测腔，所述压力检测腔内设有随着柱塞腔内的压力变化在压力检测腔内上下移动的压力检测杆，所述压力检测腔外设有微动开关，压力检测杆上设有驱动微动开关动作的拨动杆。当柱塞泵的工作压力达到设定值时，驱动柱塞泵运行的电机就会停止运行，当柱塞泵的工作压力小于设定值时，电机便开始运行加压，使设备始终处在安全的状态中。且微动开关位于压力检测腔的外部，即使压力检测腔内出现磨损泄露也不会影响到微动开关，增加了压力保护装置的耐用性。
作为优选，所述压力检测腔反向柱塞腔的端部设有调节螺钉，该调节螺钉的一端深入压力检测腔内，且在调节螺钉和压力检测杆之间设有第二压簧。调节螺钉可螺纹旋转进出压力检测腔，进而调节第二压簧在压力检测腔和压力检测杆之间的压力值，从而调整压力检测杆顶住柱塞泵的压力，通过压力检测杆的位移检测柱塞泵内的压力变化。
作为优选，所述偏心旋转结构包括圆形的齿轮盘，齿轮盘的一侧设有驱动柱，该驱动柱的圆心偏心于齿轮盘的圆心，驱动柱内设有轴承，该轴承的中心安设有安装柱，安装柱穿过齿轮盘的圆心，安装柱的两端分别安装在柱塞泵的泵体上，驱动柄反向活塞杆的一端设有圆形通孔，该通孔的直径大于驱动柱的直径，驱动柄通过通孔套设在驱动柱上。齿轮盘转动带动驱动柱转动，驱动柱的直径小于驱动柄套设在驱动柱上的通孔的直径，驱动柱做偏心圆周运动时带动驱动柄做往复运动。
 有益效果
与现有技术相比，本发明具有以下有益效果：
本发明的柱塞泵和控制电路板均位于储液容器的侧面，即使储液容器底部密封出现问题，有液体流出也不会影响到柱塞泵和控制电路板的运行，保证了柱塞泵的使用安全；
顶杆的设置可以在进液球阀堵住变径腔时，通过外力按压顶杆，可以使顶杆将进液球阀顶开；
转接箱两侧设置的滚珠限制了转接箱只能在两侧滚珠之间直线往复运动，当转接箱往复运动而和滚珠接触时，滚珠会因为转接箱的直线通过而和滚珠产生接触，进而带动滚珠自转，从而大大的减少了转接箱和滚珠之间的摩擦力，增加了柱塞泵的驱动效率，同时也延长了滚珠和转接箱的部件使用时间，使本发明更加耐用。
 附图说明
图1为本发明的结构示意图；
图2为本发明的部分剖视图；
图3为顶杆作用于进液球阀的结构示意图；
图4为柱塞泵的机构示意图；
图5柱塞泵的爆炸图；
图6压力保护装置的爆炸图；
图7偏心旋转结构的结构示意图。
图中标记：1、壳体；2、储液容器；3、柱塞泵；4、柱塞腔；5、进液腔；6、出液腔；7、泄压阀；8、控制电路板；9、出液口；10、台阶；11、沟槽；12、过滤网；13、第一段；14、第二段；15、变径腔；16、挡圈；17、进液球阀；18、抵柱；19、第一压簧；20、连接腔；21、倾斜面；22、斜坡；23、压力检测腔；24、压力检测杆；25、微动开关；26、拨动杆；27、调节螺钉；28、第二压簧；29、活塞杆；30、转接箱；31、滚珠；32、驱动柄；33、齿轮盘；34、驱动柱；35、轴承；36、安装柱；37、通孔；38、滚针轴承。
 本发明的实施方式
下面结合附图所表示的实施例对本发明作进一步描述：
实施例1
如图1所示，一种喷涂机，包括壳体1、储液容器2、柱塞泵3，柱塞泵3包括柱塞腔4、进液腔5、出液腔6和泄压阀7，储液容器2的底部和进液腔5联通，柱塞腔4上设有压力保护装置，所述柱塞泵3设置于储液容器2的一侧且柱塞泵3低于储液容器2的下端面，柱塞泵3上设有控制柱塞泵3运行的控制电路板8。柱塞泵3和控制电路板8均位于储液容器2的侧面，即使储液容器2底部密封出现问题，有液体流出也不会影响到柱塞泵3和控制电路板8的运行，保证了柱塞泵3的使用安全。
如图2、图3所示，上述储液容器2的底部设有出液口9，进液腔5和出液口9通过连接腔20连通。出液口9的一圈设有内凹的台阶10，过滤网12紧配合的安装在台阶10上，过滤网12由四周向中心略微向上拱起。台阶10上对称设有深度大于台阶10深度的两个沟槽11。出液口9上设有过滤网12，进液腔5和柱塞腔4之间设有直径小于进液腔5的变径腔15，变径腔15内设有进液球阀17，变径腔15朝向进液腔5的端部一周设有内直径小于进液球阀17直径的圆环形挡圈16，柱塞腔4内设有抵柱18，抵柱18的一端略伸入变径腔15，在抵柱18和进液球阀17之间设有第一压簧19。过滤网12上设有顶杆，顶杆的一端伸入变径腔15至进液球阀17的前端，顶杆的端部可进一步伸入变径腔15将进液球阀17顶开。如果喷涂机长时间不使用会导致进液球阀17粘连在变径腔15内导致进液腔5堵住，通过外力按压顶杆，可以使顶杆将进液球阀17顶开。
上述顶杆包括垂直于过滤网12的第一段13和平行于进液腔5的第二段14，第一段13从过滤网的下端上穿至过滤网12的上端，且第一段位于过滤网12的中心。第一段13和第二段14固定连接，第一段13和第二段14的连接处设有倾斜面21；所述连接腔20内设有斜坡22，该斜坡22位于顶杆的倾斜面21的下端，斜坡22的倾斜率和倾斜面21的倾斜率相同。斜坡22限制了倾斜面21只能沿着斜坡22滑动，使第一段13向下移动的同时向第二段14方向水平移动，使得第二段14得以水平移动，进而推动进液球阀17移动。
如图4到图6所示，压力保护装置包括和柱塞腔4内部连通的压力检测腔23，压力检测腔23内设有随着柱塞腔4内的压力变化在压力检测腔23内上下移动的压力检测杆24，压力检测腔23反向柱塞腔4的端部设有调节螺钉27，该调节螺钉27的一端深入压力检测腔23内，且在调节螺钉27和压力检测杆24之间设有第二压簧28。调节螺钉27可螺纹旋转进出压力检测腔23，进而调节第二压簧28在压力检测腔23和压力检测杆24之间的压力值，从而调整压力检测杆24顶住柱塞泵3的压力，通过压力检测杆24的位移检测柱塞泵3内的压力变化。
上述压力检测腔23外设有微动开关25，压力检测杆24上设有驱动微动开关25动作的拨动杆26。当柱塞泵3的工作压力达到设定值时，柱塞泵内的压力会顶起压力检测杆24，使压力检测杆24上的拨动杆26向微动开关25方向移动，使微动开关25动作从而使驱动柱塞泵3运行的电机停止运行，当柱塞泵3的工作压力小于设定值时，电机便开始运行加压，使设备始终处在安全的状态中。且微动开关25位于压力检测腔23的外部，即使压力检测腔23内出现磨损而导致液体泄露也不会影响到微动开关25，增加了压力保护装置的耐用性。
如图7所示，上述柱塞腔4内设有活塞，活塞的一端固定设有活塞杆29，活塞杆29通过驱动机构驱动使其往复运动，驱动机构包括和活塞杆29的一端固定连接的转接箱30，转接箱30转动连接驱动柄32，驱动柄32的另一端转动连接在偏心旋转结构上，转接箱30的两侧设有两对滚珠31。转接箱30两侧分别对称设置的滚珠31限制了转接箱30只能在两侧滚珠31之间直线往复运动，当转接箱30往复运动而和滚珠31接触时，滚珠31会因为转接箱30的直线通过而和滚珠31产生接触，进而带动滚珠31自转，从而大大的减少了转接箱30和滚珠31之间的摩擦力，增加了柱塞泵3的驱动效率，同时也延长了滚珠31和转接箱30的部件使用时间，使本发明具有更长的使用时间。
上述偏心旋转结构包括圆形的齿轮盘33，齿轮盘33的一侧设有驱动柱34，该驱动柱34的圆心偏心于齿轮盘33的圆心，驱动柱34内设有轴承35，该轴承35的中心安设有安装柱36，安装柱36穿过齿轮盘33的圆心，驱动柄32反向活塞杆29的一端设有圆形通孔37，通孔37内设有滚针轴承38，驱动柄32通过滚针轴承套设在驱动柱34上。齿轮盘33转动带动驱动柱34转动，驱动柱34偏心转动带动驱动柄32的通孔部位偏心转动从而使驱动柄32的另一端在转接箱30的限定下做直线往复运动。
实施例2
本实施例和实施例1不同之处在于：
顶杆的一端伸入挡圈16顶在进液球阀17上，顶杆的端部可进一步伸入变径腔15将进液球阀17顶开。顶杆的一端顶在进液球阀17上，除了在进液球阀17堵住变径腔15的时候手动将进液球阀17顶开以外，进液球阀17随着柱塞泵3的活塞往复运动而来回在变径腔15内移动的时候，每次进液球阀17回到顶杆的端部位置都会击打到顶杆，从而使过滤网12发生振动，在喷涂机运行过程中，过滤网12不停的振动可以将大颗粒的不能通过过滤网12而粘附在过滤网12上的涂料颗粒振掉，防止长时间运行而堵塞过滤网12导致柱塞泵3抽吸涂料的能力下降。并且过滤网12位于储液容器2的底部，过滤网12的振动也会带动储液容器2内的涂料的振动，可以减缓涂料的凝结时间，使涂料颗粒一直维持在小颗粒状态，与柱塞泵3的出液腔6相连的喷枪在使用过程中也不容易被涂料堵住出口，使得整个喷涂机更加耐用。
文中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。

Claims (12)

  1. 一种耐用高压无气喷涂机，包括壳体（1）、储液容器（2）、柱塞泵（3），柱塞泵（3）包括柱塞腔（4）、进液腔（5）、出液腔（6）和泄压阀（7），储液容器（2）的底部和进液腔（5）联通，柱塞腔（4）上设有压力保护装置，其特征在于，所述柱塞泵（3）设置于储液容器（2）的一侧且柱塞泵（3）低于储液容器（2）的下端面；所述柱塞腔（4）内设有活塞，所述活塞的一端固定设有活塞杆（29），活塞杆（29）通过驱动机构驱动使其往复运动，所述驱动机构包括和活塞杆（29）的一端固定连接的转接箱（30），转接箱（30）转动连接驱动柄（32），驱动柄（32）的另一端转动连接在偏心旋转结构上，转接箱（30）的两侧对称设有至少一对滚轮（31）。
  2. 根据权利要求1所述的耐用高压无气喷涂机，其特征在于，所述储液容器（2）的底部设有出液口（9），进液腔（5）和出液口（9）通过连接腔（20）连通。
  3. 根据权利要求2所述的耐用高压无气喷涂机，其特征在于，所述出液口（9）上设有过滤网（12），进液腔（5）和柱塞腔（4）之间设有变径腔（15），变径腔（15）内设有进液球阀（17），变径腔（15）朝向进液腔（5）的端部一周设有内直径小于进液球阀（17）直径的圆环形挡圈（16）；过滤网（12）上设有顶杆，顶杆的一端伸入挡圈（16）至进液球阀（17）的前端，顶杆的端部可进一步伸入变径腔（15）将进液球阀（17）顶开。
  4. 根据权利要求2所述的耐用高压无气喷涂机，其特征在于，所述出液口（9）上设有过滤网（12），进液腔（5）和柱塞腔（4）之间设有直径小于进液腔（5）的变径腔（15），变径腔（15）内设有进液球阀（17），变径腔（15）朝向进液腔（5）的端部一周设有内直径小于进液球阀（17）直径的圆环形挡圈（16）；过滤网（12）上设有顶杆，顶杆的一端伸入挡圈（16）顶在进液球阀（17）上，顶杆的端部可进一步伸入变径腔（15）将进液球阀（17）顶开。
  5. 根据权利要求3或4所述的耐用高压无气喷涂机，其特征在于，所述出液口（9）的一圈设有内凹的台阶（10），过滤网（12）紧配合的安装在台阶（10）上，台阶（10）上对称设有深度大于台阶（10）深度的两个沟槽（11）。
  6. 根据权利要求3或4所述的耐用高压无气喷涂机，其特征在于，所述柱塞腔（4）内设有抵柱（18），抵柱（18）的一端略伸入变径腔（15），在抵柱（18）和进液球阀（17）之间设有第一压簧（19）。
  7. 根据权利要求3或4所述的耐用高压无气喷涂机，其特征在于，所述顶杆包括垂直于过滤网（12）的第一段（13）和平行于进液腔（5）的第二段（14），第一段（13）和第二段（14）固定连接，第一段（13）和第二段（14）的连接处设有倾斜面（21）；所述连接腔（20）内设有斜坡（22），该斜坡（22）位于顶杆的倾斜面（21）的下端，斜坡（22）的倾斜率和倾斜面（21）的倾斜率相同。
  8. 根据权利要求7所述的耐用高压无气喷涂机，其特征在于，所述第一段从过滤网的下端上穿至过滤网的上端。
  9. 根据权利要求7所述的耐用高压无气喷涂机，其特征在于，所述过滤网由四周向中心略微向上拱起。
  10. 根据权利要求1所述的耐用高压无气喷涂机，其特征在于，所述压力保护装置包括和柱塞腔（4）内部连通的压力检测腔（23），所述压力检测腔（23）内设有随着柱塞腔（4）内的压力变化在压力检测腔（23）内上下移动的压力检测杆（24），所述压力检测腔（23）外设有微动开关（25），压力检测杆（24）上设有驱动微动开关（25）动作的拨动杆（26）。
  11. 根据权利要求1所述的耐用高压无气喷涂机，其特征在于，所述压力检测腔（23）反向柱塞腔（4）的端部设有调节螺钉（27），该调节螺钉（27）的一端深入压力检测腔（23）内，且在调节螺钉（27）和压力检测杆（24）之间设有第二压簧（28）。
  12. 根据权利要求1所述的耐用高压无气喷涂机，其特征在于，所述偏心旋转结构包括圆形的齿轮盘（33），齿轮盘（33）的一侧设有驱动柱（34），该驱动柱（34）的圆心偏心于齿轮盘（33）的圆心，驱动柱（34）内设有轴承（35），该轴承（35）的中心安设有安装柱（36），安装柱（36）穿过齿轮盘（33）的圆心，驱动柄（32）反向活塞杆（29）的一端设有圆形通孔（37），通孔（37）内设有滚针轴承（38），驱动柄（32）通过滚针轴承（38）套设在驱动柱34上。
PCT/CN2022/124861 2022-05-20 2022-10-12 耐用高压无气喷涂机 WO2023221381A1 (zh)

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CN114887791B (zh) * 2022-05-20 2023-05-23 浙江普莱得电器股份有限公司 耐用高压无气喷涂机
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200001312A1 (en) * 2018-06-30 2020-01-02 Zhejiang Rongpen Air Tools Co., Ltd. Reciprocating plunger pump for spray coater
CN210058676U (zh) * 2019-04-23 2020-02-14 金华市金顺工具有限公司 无气喷涂机
CN213789382U (zh) * 2020-11-10 2021-07-27 周贤智 一种小剂量定量雾化喷洒泵
CN213981883U (zh) * 2020-12-17 2021-08-17 湖南依讯诺科技有限公司 一种可调节直线行程机构
CN114887791A (zh) * 2022-05-20 2022-08-12 浙江普莱得电器股份有限公司 耐用高压无气喷涂机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2367399Y (zh) * 1999-03-25 2000-03-08 张子静 内置压力泵的手动喷雾器
CN106050598A (zh) * 2015-04-21 2016-10-26 黄小良 高压无气喷涂机柱塞泵
CN105435986A (zh) * 2015-12-19 2016-03-30 台州市正茂动力工具有限公司 一种高压清洗机关枪停机装置
CN216173365U (zh) * 2021-11-07 2022-04-05 金华市金顺工具有限公司 背负式无气喷涂机

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200001312A1 (en) * 2018-06-30 2020-01-02 Zhejiang Rongpen Air Tools Co., Ltd. Reciprocating plunger pump for spray coater
CN210058676U (zh) * 2019-04-23 2020-02-14 金华市金顺工具有限公司 无气喷涂机
CN213789382U (zh) * 2020-11-10 2021-07-27 周贤智 一种小剂量定量雾化喷洒泵
CN213981883U (zh) * 2020-12-17 2021-08-17 湖南依讯诺科技有限公司 一种可调节直线行程机构
CN114887791A (zh) * 2022-05-20 2022-08-12 浙江普莱得电器股份有限公司 耐用高压无气喷涂机

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