CN110538741B - Automatic change spray gun - Google Patents

Automatic change spray gun Download PDF

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Publication number
CN110538741B
CN110538741B CN201910902306.9A CN201910902306A CN110538741B CN 110538741 B CN110538741 B CN 110538741B CN 201910902306 A CN201910902306 A CN 201910902306A CN 110538741 B CN110538741 B CN 110538741B
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China
Prior art keywords
module
spray gun
extrusion
spray head
paint
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CN201910902306.9A
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Chinese (zh)
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CN110538741A (en
Inventor
曾玉灵
曾赞根
韦利金
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Beiweisi Guangzhou Intelligent Technology Research Institute Co ltd
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Beiweisi Guangzhou Intelligent Technology Research Institute Co ltd
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Priority to CN201910902306.9A priority Critical patent/CN110538741B/en
Publication of CN110538741A publication Critical patent/CN110538741A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00Arrangements for controlling delivery; Arrangements for controlling the spray area
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03Spraying 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
    • B05B9/04Spraying 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
    • B05B9/047Spraying 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 supply being effected by follower in container, e.g. membrane or floating piston, or by deformation of container

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  • Spray Control Apparatus (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Abstract

The invention relates to the technical field of spraying equipment, in particular to an automatic spray gun. The spray gun comprises a spray gun body, wherein the spray gun body comprises a first monitoring module, a spray head module, an extrusion module and a control module, the spray head module comprises an atomization spray head, an injection assembly is detachably arranged on the spray head module, and the injection assembly is used for storing paint; the first monitoring module, the spray head module and the extrusion module are electrically connected with the control module; the first monitoring module is used for monitoring whether the injection assembly is installed on the spray head module, and the control module drives the extrusion module to extrude the paint in the injection assembly after receiving the monitoring signal so as to realize the spraying of the paint. By adopting the automatic spray gun, on one hand, the automatic spray of the spray gun is realized; on the other hand, the condition that the spray gun needs to be cleaned is avoided, the cleaning time and labor are saved, and the spraying efficiency is improved. The operation requirement of small-amount spraying is met, the interference of human factors is discharged, and the consistency of spraying and proofing is ensured.

Description

Automatic change spray gun
Technical Field
The invention relates to the technical field of spraying equipment, in particular to an automatic spray gun.
Background
The spray gun is a special tool for spraying paint, and the existing spray gun mainly comprises a nozzle, a hood and a thimble, wherein the nozzle is used for spraying paint, the hood is used for spraying airflow for atomizing the paint, and the thimble is used for adjusting paint flow.
In the prior art, because of different spraying objects and spraying requirements, the spray gun has the condition of changing the paint in the use process, in order to avoid doping of different paints, spray gun components such as a gun needle, a paint bucket and the like are often required to be cleaned before the paint changing process, and on the one hand, waste water with the paint dissolved therein can be generated, so that environmental pollution is caused; on the other hand, the disassembly and cleaning of parts such as gun needles and the like also consume more manpower, and the spraying efficiency is reduced to a certain extent. Particularly, in the process of developing paint samples in a laboratory, the cleaning of the spray gun consumes a great deal of time and labor due to various kinds of paint samples to be tested, thereby being unfavorable for the rapid development of novel paint.
Disclosure of Invention
The invention aims to provide an automatic spray gun which is used for solving the technical problem that a spray gun in the prior art needs to consume a great deal of time and manpower for cleaning before spraying different types of coatings; in addition, the automatic spray gun is particularly suitable for spraying small amount of paint, and is beneficial to solving the problem of automatic spraying and proofing of the small amount of paint in research and development.
In order to achieve the above purpose, the invention provides an automatic spray gun, which adopts the following technical scheme:
An automatic spray gun comprises a spray gun body, wherein the spray gun body comprises a first monitoring module, a spray head module, an extrusion module and a control module, the spray head module comprises an atomization spray head, an injection assembly is detachably arranged on the spray head module, and the injection assembly is used for storing paint;
the first monitoring module, the spray head module and the extrusion module are electrically connected with the control module; the first monitoring module is used for monitoring whether the injection assembly is mounted on the spray head module and transmitting the mounted monitoring signal to the control module, the control module drives the extrusion module to extrude the paint in the injection assembly after receiving the monitoring signal so as to realize the spraying of the paint, and the atomizing spray head is used for atomizing the sprayed paint.
Further, the extrusion module comprises an extrusion part, a first extrusion device and a second extrusion device, wherein the extrusion part is used for extruding the paint in the injection assembly, the first extrusion device is used for coarsely adjusting the distance between the extrusion part and the spray head module, and the second extrusion device is used for driving the extrusion part to move so as to extrude the paint.
Further, the second extrusion device comprises a driving motor and a screw transmission mechanism, and the first extrusion device comprises a driving cylinder.
Further, the screw transmission mechanism comprises a screw and a driving nut assembled on the screw in a threaded manner, the driving cylinder is fixedly connected with the driving nut, and the extrusion part is fixedly connected with a driving shaft of the driving cylinder.
Further, a protective cover is arranged on the outer side of the second extrusion device.
Further, the injection assembly comprises a syringe barrel, an injection needle and a squeeze handle, wherein the squeeze handle is assembled in the syringe barrel in a guide sliding manner.
Further, a second monitoring module is arranged on the extrusion part and used for monitoring whether the extrusion part is in contact with the injection assembly or not, and the second monitoring module is electrically connected with the control module.
Further, the second monitoring module is a mechanical contact switch.
Further, the spray head module is also provided with an injection jack for inserting an injection assembly, and the injection assembly is detachably mounted through the insertion assembly with the injection jack.
Further, the first monitoring module is a laser sensor, the laser sensor is installed on the nozzle module, a light hole for the light emitted by the laser sensor to pass through is formed in the nozzle module, and the light hole and the injection jack are arranged in a crossing mode.
Compared with the prior art, the automatic spray gun provided by the embodiment of the invention has the beneficial effects that: by adopting the automatic spray gun, on one hand, the automatic spraying of the spray gun is realized, namely, the spraying operation can be carried out by installing the injection assembly stored with the coating on the spray head module; on the other hand, the condition that the spray gun needs to be cleaned is avoided, and when the automatic spray gun is used for replacing paint, the injection assembly is directly detached from the spray head module and then replaced by a new injection assembly, so that the time and labor for cleaning the spray gun are saved, and the spraying efficiency is improved. In addition, the automatic spray gun is particularly suitable for spraying small amount of paint, samples of general research and development institutions are relatively few, the traditional spray gun, particularly the pressure-feed type automatic spray gun, is relatively large in primary material consumption, and most of the primary material consumption is wasted, mainly on a pipeline, so that the automatic spray gun is not suitable for being used, and is the reason that a plurality of mechanisms can only use manual spray guns, but the consistency of manual spray gun sampling is not ideal, and the human factor interference is relatively large.
Drawings
FIG. 1 is a schematic view of the overall structure of an automated spray gun according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the overall structure of an automated spray gun according to an embodiment of the invention;
FIG. 3 is a right side schematic view of an automated spray gun of an embodiment of the invention;
FIG. 4 is a left side schematic view of an automated spray gun of an embodiment of the present invention;
FIG. 5 is a cross-sectional view taken at A-A of FIG. 4;
FIG. 6 is a partial enlarged view at B in FIG. 5;
fig. 7 is a schematic overall construction of an injection assembly of an automated spray gun according to an embodiment of the invention.
In the figure, 1, a protective cover; 2. an extrusion module; 201. a driving cylinder; 202. an extrusion part; 203. a driving motor; 204. a drive nut; 205. a screw rod; 3. an injection assembly; 301. extruding the handle; 302. a syringe; 303. an injection needle; 4. a spray head module; 401. a positioning seat; 402. an air cap; 403. a hood nut; 404. a connecting plate; 405. a nozzle holder; 5. a first monitoring module; 501. a light hole; 6. and a second monitoring module.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
As shown in fig. 1 to 7, an automated spray gun according to a preferred embodiment of the present invention. The automatic spray gun comprises a spray gun body, wherein the spray gun body comprises a first monitoring module 5, a spray head module 4, an extrusion module 2 and a control module, the spray head module 4 comprises an atomization spray head, an injection assembly 3 is detachably arranged on the spray head module 4, and the injection assembly 3 is used for storing paint;
The first monitoring module 5, the spray head module 4 and the extrusion module 2 are electrically connected with the control module; the first monitoring module 5 is used for monitoring whether the injection assembly 3 is installed on the spray head module 4 and transmitting the installed monitoring signal to the control module, the control module drives the extrusion module 2 to extrude the paint in the injection assembly 3 after receiving the monitoring signal so as to realize the spraying of the paint, and the atomization spray head is used for atomizing the sprayed paint.
Specifically, the control module in this embodiment is a common processor or PLC control system. The pressing module 2 includes a pressing portion 202, a first pressing device, and a second pressing device. Wherein the first pressing means comprises a driving cylinder 201 and the second pressing means comprises a driving motor 203 and a screw drive. The screw drive mechanism includes a screw 205 and a drive nut 204. As shown in fig. 5, in this embodiment, a driving motor 203 is fixedly connected to one end of a screw 205, a driving shaft of the driving motor 203 is in transmission connection with the screw 205, and a driving nut 204 is screwed on the screw 205. In this embodiment, the outer side of the second extrusion device is provided with a protective cover 1, and the driving motor 203, the lead screw 205 and the driving nut 204 are all covered inside the protective cover 1.
In this embodiment, the driving cylinder 201 is fixedly connected with the driving nut 204. The shield 1 is provided with a bar-shaped groove for passing through a connecting portion of the driving cylinder 201 and the driving nut 204 toward one side of the driving cylinder 201, and an extending direction of the bar-shaped groove is the same as an extending direction of the screw 205. The pressing portion 202 in this embodiment is fixedly connected to the driving shaft of the driving cylinder 201 by a plate material. When the extrusion module 2 is in operation, the driving motor 203 drives the screw rod 205 to rotate, the rotating screw rod 205 drives the driving nut 204 to move upwards or downwards along the axial direction of the screw rod 205, and the movement of the driving nut 204 drives the driving cylinder 201 to move, so that the extrusion part 202 is driven. In this embodiment, the extruding portion 202 may also be moved by separately starting the driving cylinder 201, and after the driving cylinder 201 is started, the driving shaft of the driving cylinder 201 drives the extruding portion 202 to move up or down.
The first extrusion device in this embodiment can implement coarse adjustment of the position of the extrusion part 202, that is, implement rapid and large-distance adjustment of the position of the extrusion part 202 through expansion and contraction of the cylinder driving shaft. The second extrusion device is used for driving the extrusion part 202 to extrude the paint of the injection assembly 3, and the second extrusion device can slowly and finely realize the spraying operation of the paint because a certain speed is required to be maintained in the spraying process. In other embodiments, the compression module may only retain the second compression means, i.e. the compression module does not comprise the first compression means, in case the displacement stroke fulfils the requirements.
In order to monitor whether the pressing portion is in place, that is, whether the pressing portion is in contact with the injection assembly 3, in this embodiment, the second monitoring module 6 is mounted on the pressing portion 202, and the second monitoring module 6 is electrically connected to the control module, in this embodiment, the second monitoring module 6 is specifically a mechanical contact switch, and in other embodiments, the second monitoring module 6 may also be a pressure sensor or other pressure monitoring device. When the extrusion part 202 contacts and presses the injection assembly 3, the mechanical contact switch is turned on under the action of the reaction force of the paint, the turned-on mechanical contact switch transmits a signal to the control module, and at this time, the control module starts the spray head module and continues to drive the second extrusion device to operate, so that the atomized spraying of the paint is realized.
The second monitoring module 6 in this embodiment may also be used to measure the amount of paint stored in the injection assembly 3. When the amount of stored paint is measured, it is necessary to start the operation of the pressing portion 202 from the set position (start position), and since the amount of stored paint stored in the injection assembly 3 is different, the surface level of the paint is also different. When the extrusion part 202 descends to contact the surface of the paint, the second monitoring module 6 is started under the reactive force of the paint and transmits the relevant signal to the control module, the control module counts the travel distance of the extrusion part 202 before receiving the signal, the travel distance can be calculated by the product of the speed of the extrusion part 202 and the corresponding time period, the displacement of the driving nut 204 can be calculated by counting the rotation number of the driving motor 203 and then using the transmission ratio between the driving motor 203 and the screw transmission mechanism, and the displacement of the driving nut 204 is the displacement of the extrusion part 202. Since the distance between the pressing portion 202 and the head module 4 is determined, the height of the paint can be calculated, and finally the storage amount of the paint can be calculated using the paint height and the paint cross-sectional area.
The injection assembly 3 includes a syringe barrel 302, a syringe needle 303, and a pressing handle 301, as shown in fig. 7, the injection assembly 3 in this embodiment is similar to a conventional medical syringe in structure, wherein the syringe barrel 302 is used for storing paint, the syringe needle 303 is used for being inserted into the nozzle module 4 and spraying paint, and the pressing handle 301 is used for pressing paint to spray paint.
The spray head module 4 in this embodiment includes a positioning seat 401, a connection plate 404, and an atomizer, and the atomizer includes a nozzle seat 405, a bonnet nut 403, and an air cap 402. In this embodiment, the spray head module 4 is disposed opposite to the extrusion portion 202, and the positioning seat 401, the connection plate 404, the nozzle seat 405, the cap nut 403, and the air cap 402 are sequentially disposed along a direction away from the extrusion portion 202. In this embodiment, the connection plate 404 is used for fixedly connecting the spray head module 4 with the protection cover 1, the positioning seat 401 and the connection plate 404, and the connection plate 404 and the nozzle seat 405 are all fixedly connected by screws, and the air cap 402 is fixedly connected with the nozzle seat 405 by the hood nut 403 (this is the prior art, and this embodiment is not described in detail). In this embodiment, the nozzle module 4 is provided with an injection jack for inserting the injection assembly 3, and the injection jack penetrates through the positioning seat 401, the connecting plate 404, the nozzle seat 405, the cap nut 403 and the air cap 402 at the same time, and the hole pattern of the injection jack is matched with the shape of the injection assembly 3.
In this embodiment, the first monitoring module 5 is disposed on the spray head module 4, where the first monitoring module 5 is a laser sensor, and in other embodiments, may be replaced by other monitoring devices such as an infrared sensor. As shown in fig. 1 and fig. 2, in this embodiment, the laser sensor is mounted on the connection board 404, and a light hole 501 through which the laser emitted by the laser sensor passes is provided on the connection board 404, where the light hole 501 is disposed to intersect with the injection jack, and specifically, in this embodiment, the light hole 501 is disposed to intersect with the injection jack perpendicularly. When the injection assembly 3 is inserted into the injection socket, the laser sensor senses the injection assembly 3 and then transmits a monitoring signal to the control module, which monitors the injection assembly 3. The control module drives the extrusion module 2 to operate after receiving the monitoring signal. In order to avoid the situation of monitoring errors and provide a certain installation time for the installation of the injection assembly 3, a certain sensing time may be set in the control module, that is, in a certain time range, if the laser sensor always sends a monitoring signal, it is determined that the injection assembly 3 is installed and completed. In this embodiment, two atomizing air ports are further disposed on the nozzle base, as shown in fig. 3.
The working process of the invention is as follows: firstly, adjusting the interval between the extrusion part 202 and the spray head module 4 by using a first extrusion device, so that the interval between the extrusion part 202 and the spray head module 4 meets the requirement of installing the injection assembly 3; then insert injection subassembly 3 through modes such as manual work or automatic mechanical arm in the injection jack, first monitoring module 5 senses injection subassembly 3 and gives monitoring signal transmission control module this moment, control module at first controls the action of actuating cylinder 201, thereby realize the fine adjustment to the position of extrusion portion 202, after carrying out coarse adjustment to the position of extrusion portion 202, control module can control driving motor 203 and rotate, thereby realize the continuation drive to extrusion portion 202, extrusion portion 202 of motion can extrude injection subassembly 3's extrusion handle 301, thereby extrude injection subassembly 3 with the coating, when extrusion, control module can also control air supply equipment such as air pump and supply air to two atomizing air interfaces, the air of supply can atomize the coating under atomizer's effect, thereby realize spraying operation. In the spraying operation process, if different types of paint need to be replaced, the injection assembly 3 is pulled out of the injection jack by a manual mode or an automatic manipulator mode and the like, and then the injection assembly 3 stored with the novel paint is reinserted.
In summary, the embodiment of the invention provides an automatic spray gun, which realizes automatic spraying of the spray gun on one hand, namely, spraying operation can be performed by installing an injection assembly 3 stored with paint on a spray head module 4; on the other hand, the condition that the spray gun needs to be cleaned is avoided, and when the automatic spray gun is used for replacing paint, the injection assembly 3 is directly detached from the spray head module 4 and then replaced by a new injection assembly 3, so that the time and labor for cleaning the spray gun are saved, and the spraying efficiency is improved. In addition, the automatic spray gun also meets the operation requirement of small-amount spraying, eliminates the interference of human factors and ensures the consistency of spraying and proofing.
In other embodiments: the driving cylinder 201 can be fixedly connected with the driving motor 203, the extruding part 202 is directly fixedly connected with the driving nut 204, and the driving cylinder 201 realizes coarse adjustment of the position of the extruding part 202 by controlling the movement of the driving motor 203.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.

Claims (9)

1. An automated spray gun, characterized by: the spray gun comprises a spray gun body, wherein the spray gun body comprises a first monitoring module (5), a spray head module (4), an extrusion module (2) and a control module, the spray head module (4) comprises an atomization spray head, an injection assembly (3) is detachably arranged on the spray head module (4), and the injection assembly (3) is used for storing paint;
The first monitoring module (5), the spray head module (4) and the extrusion module (2) are electrically connected with the control module; the first monitoring module (5) is used for monitoring whether the injection assembly (3) is mounted on the spray head module (4) or not and transmitting the mounted monitoring signal to the control module, the control module drives the extrusion module (2) to extrude the paint in the injection assembly (3) after receiving the monitoring signal so as to realize the spraying of the paint, and the atomization spray head is used for atomizing the sprayed paint; the extrusion module (2) comprises an extrusion part (202), a first extrusion device and a second extrusion device, wherein the extrusion part (202) is used for extruding the paint in the injection assembly (3), the first extrusion device is used for coarsely adjusting the distance between the extrusion part (202) and the spray head module (4), and the second extrusion device is used for driving the extrusion part (202) to move so as to extrude the paint.
2. The automated spray gun of claim 1, wherein: the second extrusion device comprises a driving motor (203) and a screw transmission mechanism, and the first extrusion device comprises a driving cylinder (201).
3. The automated spray gun of claim 2, wherein: the screw transmission mechanism comprises a screw (205) and a driving nut (204) which is assembled on the screw (205) in a threaded mode, the driving cylinder (201) is fixedly connected with the driving nut (204), and the extrusion part (202) is fixedly connected with a driving shaft of the driving cylinder (201).
4. The automated spray gun of claim 1, wherein: a protective cover (1) is arranged on the outer side of the second extrusion device.
5. The automated spray gun of claim 1, wherein: the injection assembly (3) comprises an injection cylinder (302), an injection needle (303) and a squeezing handle (301), wherein the squeezing handle (301) is assembled in the injection cylinder (302) in a guiding sliding manner.
6. The automated spray gun of claim 1, wherein: the extrusion part (202) is provided with a second monitoring module (6), the second monitoring module (6) is used for monitoring whether the extrusion part is in contact with the injection assembly or not, and the second monitoring module (6) is electrically connected with the control module.
7. The automated spray gun of claim 6, wherein: the second monitoring module (6) is a mechanical contact switch.
8. The automated spray gun of any of claims 1-7, wherein: the spray head module (4) is provided with an injection jack for inserting an injection assembly (3), and the injection assembly (3) is detachably mounted through the insertion assembly with the injection jack.
9. The automated spray gun of claim 8, wherein: the first monitoring module (5) is a laser sensor, the laser sensor is installed on the spray head module (4), a light hole (501) through which light emitted by the laser sensor passes is formed in the spray head module (4), and the light hole (501) and the injection jack are arranged in a crossing mode.
CN201910902306.9A 2019-09-23 2019-09-23 Automatic change spray gun Active CN110538741B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN110538741B true CN110538741B (en) 2024-05-07

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112354713A (en) * 2020-10-30 2021-02-12 广州市盛华实业有限公司 Spray gun coating device

Citations (5)

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Publication number Priority date Publication date Assignee Title
CN105251078A (en) * 2011-06-14 2016-01-20 株式会社根本杏林堂 Injector and control method for an ultrasonic motor
CN206104161U (en) * 2016-09-13 2017-04-19 国智自动化系统(张家港)有限公司 Automatic drawing of patterns spraying mechanism
CN108043614A (en) * 2017-12-28 2018-05-18 浙江农林大学 Automatic liquid coating flow control type spray gun
CN108499768A (en) * 2018-06-11 2018-09-07 东莞市瀚晟自动化设备有限公司 A kind of injecting type paint feeding system
CN211303486U (en) * 2019-09-23 2020-08-21 贝威斯(广州)智能科技研究院有限公司 Automatic spray gun

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105251078A (en) * 2011-06-14 2016-01-20 株式会社根本杏林堂 Injector and control method for an ultrasonic motor
CN206104161U (en) * 2016-09-13 2017-04-19 国智自动化系统(张家港)有限公司 Automatic drawing of patterns spraying mechanism
CN108043614A (en) * 2017-12-28 2018-05-18 浙江农林大学 Automatic liquid coating flow control type spray gun
CN108499768A (en) * 2018-06-11 2018-09-07 东莞市瀚晟自动化设备有限公司 A kind of injecting type paint feeding system
CN211303486U (en) * 2019-09-23 2020-08-21 贝威斯(广州)智能科技研究院有限公司 Automatic spray gun

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