WO2022011900A1

WO2022011900A1 - Intelligent solid co2 cleaning machine

Info

Publication number: WO2022011900A1
Application number: PCT/CN2020/127626
Authority: WO
Inventors: 袁和平; 陈水宣; 洪昭斌
Original assignee: 厦门理工学院
Priority date: 2020-07-15
Filing date: 2020-11-09
Publication date: 2022-01-20
Also published as: CN111974749A

Abstract

An intelligent solid CO2 cleaning machine, comprising a housing (1), a dry ice production mechanism (2), and a dry ice blast cleaning device (3). The dry ice production mechanism (2) comprises a dry ice generation device (21), a forming die head (22), and a dry ice crushing device (23); the dry ice crushing device (23) comprises particle die heads (231), a rotary cutter holder (232), and a driving assembly (233); the particle die heads (231) are provided with particle forming holes (2311) fitted to a forming cavity of the forming die head (22); there are multiple particle die heads (231), and the diameters of the particle forming holes (2311) of the multiple particle die heads (231) are different; one side of the forming die head (22) is provided with a die switching mechanism (6); the multiple particle die heads (231) are mounted on the die switching mechanism (6); the die switching mechanism (6) is used for switching the different particle die heads (231) to be fitted to the forming die head (22); and the die switching mechanism (6) is connected to a controller (7) used for controlling the switching of the die switching mechanism. The device can cut, according to cutting requirements, dry ice particles having different sizes for use, and has the advantages of improving the applicability and enhancing the cleaning effect.

Description

An intelligent solid-state CO2 cleaning machine

technical field

The invention relates to the technical field of dry ice cleaning, more particularly, to an intelligent solid-state CO2 cleaning machine.

Background technique

Dry ice cleaning is a method of cleaning dirt, which can clean the dirt and impurities on the surface of the workpiece without damaging the workpiece. The principle of dry ice cleaning: spraying dry ice particles on the surface of the workpiece with high-pressure air will cause the following changes: 1. The surface of the workpiece is rapidly cooled, which reduces the adhesion of dirt with different shrinkage rates from the workpiece; 2. The dirt such as oil is cooled and changed. It becomes hard and brittle, and the adhesion is reduced; 3. The high-pressure gas sprays dry ice particles on the surface of the workpiece to cause the impact to fall off the dirt; 4. The explosive force generated by the instantaneous gasification of the dry ice particles on the surface of the workpiece makes the dirt fall off. The advantage of cleaning with dry ice is that the cleaning effect is good, and there is no residue that affects the insulation of the equipment.

The existing dry ice cleaning system includes a dry ice cleaning machine, a dry ice gun and an ice spray pipe. The dry ice cleaning machine is used to produce dry ice particles and send them to the dry ice gun for spray cleaning operation. In the prior art, the dry ice particles produced by the dry ice cleaning machine are often fixed-size particles. During the dry ice cleaning process, if you need to switch dry ice of different particles for cleaning, you need to use a dry ice cleaning machine of another specification to manufacture, or open the dry ice. The cleaning machine disassembles and replaces the internal molding die, which is a troublesome process. It is impossible to switch the size of the formed dry ice particles in time according to different cleaning needs, resulting in a small application range and affecting the cleaning effect.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the purpose of the present invention is to provide an intelligent solid-state CO2 cleaning machine, which can cut dry ice particles of different sizes for use according to cutting requirements, and has the advantages of improving its applicability and cleaning effect.

For achieving the above object, the present invention provides the following technical solutions:

An intelligent solid-state CO2 cleaning machine, comprising a shell, a dry ice making mechanism arranged in the shell, and a dry ice jet cleaning device connected with the dry ice making mechanism, wherein the dry ice making mechanism comprises a dry ice production device disposed in the shell, A forming die head at one end of the production device and a dry ice pulverizing device arranged on one side of the forming die head, a dry ice particle bearing hopper is arranged below the dry ice pulverizing device, and the dry ice bearing hopper is connected to the dry ice jet cleaning device through a dry ice conveying device, The dry ice pulverizing device includes a particle die head docked with the forming die head, a rotary tool holder arranged on one side of the particle die head, and a driving component for driving the rotary tool holder to move closer to the particle die head or away from the particle die head. The particle die head is provided with a particle forming hole that is docked with the forming cavity of the forming die head, the particle die head is provided with a plurality of, and the particle forming holes of the plurality of particle die heads are different in size, and the forming die head has different sizes. There is a mold changing mechanism on one side of the mold, and a plurality of the particle dies are installed on the mold changing mechanism, and the mold changing mechanism is used to switch different particle dies to dock with the forming die, and the mold changing mechanism is useful for connecting The controller that controls its transition.

Further setting: the mold changing mechanism includes a fixed frame fixed on one side of the molding die, a rotating disk set on the fixed frame and a motor for driving the rotating disk to rotate. A plurality of installation positions, a plurality of the pellet die heads are respectively installed on the plurality of installation positions, and the pellet die heads are paired on the forming die head.

Further setting: an electric control lock for locking the pellet die head is provided on the side of the forming die head close to the pellet die head, and the electric control lock is controlled by the controller.

Further setting: the diameter of the particle forming hole gradually decreases from one end of the forming die to the other end.

Further arrangement: a plurality of guide knives are uniformly arranged on the inner wall of the particle forming hole along the circumferential direction thereof, and the side wall of the guide knives is arranged in an arc shape.

Further setting: the dry ice conveying device includes a conveying cylinder connected with the dry ice bearing hopper, a conveying screw arranged in the conveying cylinder and a rotating motor connected with the conveying screw, and the conveying screw is provided with a screw conveyor with a uniform pitch distribution. piece.

Further setting: the feeding cylinder includes a material storage cavity and a material feeding cavity connected with the material storage cavity, the material storage cavity is connected with the dry ice bearing hopper, the conveying screw is arranged on the feeding cavity, and the material storage cavity There is an electric control valve between the feeding chamber and the feeding chamber for controlling the communication between the two. The storage chamber is provided with a detector for detecting the storage of dry ice particles in the storage chamber. The signal of the detector is connected to the controller. The electronically controlled valve is controlled by the controller.

Further setting: the dry ice blast cleaning device is provided with a pulverization mode selector, the pulverization mode selector is connected with the controller signal, and the controller sends a feedback signal to the mold change according to the dry ice particle size selected by the pulverization mode selector The mechanism replaces the corresponding pellet die.

Further arrangement: the drive assembly includes a fixed seat provided in the housing, a movable seat slidably passed through the fixed seat, and a hydraulic cylinder for pushing the movable seat to slide, the piston rod of the hydraulic cylinder is connected with the movable seat, the The rotary tool holder is installed on the movable seat.

Further setting: the rotating tool rest includes a rotating disk that is rotated on the moving seat, a cutting tool that is located on the rotating disk and a rotating motor connected to the rotating disk. The rotating disk is evenly distributed from its center to the outer diameter direction. There are multiple cutting zones.

By adopting the above-mentioned technical scheme, the present invention has the following advantages compared with the prior art:

1. The pellet die head can be replaced by the die changing mechanism, which can switch between different pellet die heads and forming die heads, so as to cut dry ice pellets of different sizes for use according to cutting requirements, which has the advantages of improving its applicability and cleaning effect;

2. By driving the rotary knife holder to move, the distance between the rotary knife holder and the particle die head can be adjusted to cut dry ice particles of different particle sizes and improve the applicability;

3. Through the combination of the controller and the crushing mode selector, it is convenient to automatically control the die changing mechanism and improve the convenience of operation and use;

4. The forming die head and the pellet die head are fixed by the electric control lock, which can improve the stability of the docking between the two, so as to improve the stability of the production of dry ice particles;

5. The dry ice particles are conveyed through the cooperation of the conveying screw and the threaded conveying sheet, which can evenly send the dry ice particles to the dry ice jet cleaning device, so as to facilitate the uniform spraying of the dry ice particles and improve the cleaning effect.

Description of drawings

Fig. 1 is the structural representation of intelligent solid-state CO2 cleaning machine;

Figure 2 is a schematic diagram of the internal structure of an intelligent solid-state CO2 cleaning machine;

Fig. 3 is the distribution schematic diagram of the particle die on the rotating disk;

Figure 4 is a schematic cross-sectional view of a pellet die.

In the figure: 1. Shell; 2. Dry ice making mechanism; 21. Dry ice production device; 22. Forming die; 221, Electric lock; 23. Dry ice crushing device; 231, Particle die; 2312, guide knife; 232, rotary knife holder; 2321, rotary disk; 2322, cutting knife; 2323, rotary motor; 233, drive assembly; 2331, fixed seat; 2332, movable seat; 2333, hydraulic cylinder; 3, dry ice blasting Cleaning device; 4. Dry ice pellet hopper; 5. Dry ice conveying device; 51. Feeding cylinder; 511. Material storage cavity; 512. Feeding cavity; 513. Electric control valve; 52. Conveying screw; 521. Screw conveyor 53. Rotating motor; 6. Die changing mechanism; 61. Fixing frame; 62. Rotating plate; 621. Installation position; 63. Motor; 7. Controller; 8. Detector;

detailed description

The intelligent solid-state CO2 cleaning machine will be further described with reference to FIG. 1 to FIG. 4 .

An intelligent solid-state CO2 cleaning machine, as shown in FIG. 1, includes a casing 1, a dry ice making mechanism 2 arranged in the casing 1, and a dry ice jet cleaning device 3 connected to the dry ice making mechanism 2. The dry ice making mechanism 2 makes The dry ice particles are sent to the dry ice jet cleaning device 3 to be sprayed for solid CO2 cleaning, so as to facilitate the cleaning of the workpiece.

As shown in FIGS. 1 and 2 , the dry ice making mechanism 2 includes a dry ice production device 21 provided in the housing 1 , a forming die 22 provided at one end of the dry ice production device 21 , and a dry ice pulverization device provided on one side of the forming die 22 . The device 23, the dry ice pulverizing device 23 is used for pulverizing dry ice into dry ice particles, which is convenient for cleaning. Wherein, a dry ice particle hopper 4 is provided below the dry ice crushing device 23, and the dry ice hopper is connected to the dry ice jet cleaning device 3 through the dry ice conveying device 5, so as to facilitate the transportation of dry ice particles.

As shown in FIG. 1 and FIG. 2 , the dry ice pulverizing device 23 includes a particle die head 231 connected to the forming die head 22 , a rotary knife holder 232 provided on one side of the particle die head 231 , and a rotary knife holder 232 for driving the rotary knife holder 232 to approach the particles. The die 231 or the drive assembly 233 that moves away from the pellet die 231 . Among them, a plurality of particle die heads 231 are provided, and the particle die heads 231 are provided with particle forming holes 2311 that are connected with the forming cavity of the forming die head 22, and the particle forming holes 2311 of the plurality of particle die heads 231 have different diameters, so as to pass Switching different pellet die heads 231 to align with the forming die head 22 can form dry ice bars of different sizes, and then use the rotary knife holder 232 to cut to form dry ice pellets. Different sizes of dry ice bars can be made according to different sizes. At the same time, the driving component 233 drives the rotary knife holder 232 to move, which can adjust the cutting length of the dry ice particles, further cut dry ice particles of different sizes for use, and improve the applicability.

As shown in FIG. 2 and FIG. 4 , further, the diameter of the particle forming holes 2311 is gradually reduced from one end of the forming die 22 to the other end, so that the dry ice bars can be formed in the particle forming holes 2311 . Among them, a plurality of guide knives 2312 are evenly arranged on the inner wall of the particle forming hole 2311 along its circumferential direction, and the side wall of the guide knives 2312 is set in an arc shape, which can guide the dry ice bar to be gradually sent out like the discharge end of the particle forming hole 2311 , to avoid blockage in the particle forming hole 2311.

As shown in FIG. 2 and FIG. 3 , a mold changing mechanism 6 is provided on one side of the forming die 22 , a plurality of pellet dies 231 are mounted on the mold changing mechanism 6 , and the mold changing mechanism 6 is used to switch different pellet dies 231 to dock with the forming die head 22, and the die changing mechanism 6 is connected with a controller 7 for controlling its changeover. The controller 7 controls the die changing mechanism 6 to switch the forming die 22 for use, which can conveniently replace the pellet die 231 to connect with the forming die 22, thereby forming dry ice pellets of different sizes, which is convenient and quick. Among them, the dry ice blast cleaning device 3 is provided with a pulverization mode selector 9, the pulverization mode selector 9 is connected with the controller 7 in signal, and the controller 7 sends a feedback signal to the mold change according to the dry ice particle size selected by the pulverization mode selector 9 The mechanism 6 replaces the corresponding particle dies 231, so that the pulverization mode selector 9 can be operated on the dry ice jet cleaning device 3 to realize the replacement of the particle dies 231, thereby producing dry ice particles of different sizes for use by the dry ice jet cleaning device 3. .

As shown in FIG. 2 , the drive assembly 233 includes a fixed seat 2331 provided in the housing 1 , a movable seat 2332 slidably passed through the fixed seat 2331 , a hydraulic cylinder 2333 for pushing the movable seat 2332 to slide, and a piston of the hydraulic cylinder 2333 The rod is connected with the moving base 2332, and the rotating tool rest 232 is installed on the moving base 2332, so as to facilitate the moving of the rotating tool rest 232. The rotary tool rest 232 includes a rotary disk 2321 that is rotated on the moving base 2332, a cutting knife 2322 mounted on the rotary disk 2321, and a rotary motor 2323 connected to the rotary disk 2321. There are a plurality of cutting areas evenly distributed in the direction, the cutting blade 2322 includes cutting tools respectively installed on each cutting area, and the included angle between the cutting tools of two adjacent cutting areas is set to an acute angle, so as to cut out dry ice particles, And it will not stick to the knife, which improves the cutting and forming effect of dry ice particles.

As shown in FIG. 2 , the mold changing mechanism 6 includes a fixing frame 61 fixed on one side of the molding die 22 , a rotating plate 62 rotatably arranged on the fixing frame 61 , and a motor 63 for driving the rotating plate 62 to rotate. The rotating plate 62 There are a plurality of installation positions 621 evenly distributed on the top in a circular shape, and a plurality of particle dies 231 are respectively installed on the plurality of installation positions 621, and the particle dies 231 are positioned on the forming die 22, and the rotating disk 62 is driven by the motor 63 to rotate. , the different installation positions 621 can be switched to align with the forming die 22 , thereby realizing the effect of switching the pellet die 231 for use. Further, the side of the forming die head 22 close to the pellet die head 231 is provided with an electric control lock 221 for locking the pellet die head 231. The electric control lock 221 is controlled by the controller 7 so as to facilitate the switching of the pellet die head. It is locked behind the head 231 for stable production of dry ice pellets.

As shown in FIG. 2 , the dry ice conveying device 5 includes a conveying cylinder 51 communicated with the dry ice hopper, a conveying screw 52 arranged in the conveying cylinder 51, and a rotating motor 53 connected with the conveying screw 52. The conveying cylinder 51 is far away from the dry ice. One end of the hopper is connected to the dry ice jet cleaning device 3, and the conveying screw 52 is provided with a threaded conveying piece 521 with a uniform pitch distribution. The dry ice particles are transported to the dry ice jet cleaning device 3 through the feeding cylinder 51 for use, so as to improve the uniformity of the transport of the dry ice particles and improve the cleaning effect of solid CO2.

As shown in FIG. 2 , further, the feeding cylinder 51 includes a material storage cavity 511 and a material feeding cavity 512 connected with the material storage cavity 511 , the material storage cavity 511 is connected with the dry ice hopper, and the conveying screw 52 is arranged in the material feeding cavity 512 On the upper side, there is an electric control valve 513 between the storage chamber 511 and the delivery chamber 512 for controlling the communication between the two. The storage chamber 511 is provided with a detector 8 for detecting the dry ice particle storage in the storage chamber 511. The signal 8 is connected to the controller 7 , and the electronic control valve 513 is controlled by the controller 7 . When the detector 8 detects that the dry ice particles in the storage chamber 511 are about to be full, that is, a signal is sent to the controller 7, and the controller 7 sends a control command to open the electronically controlled valve 513 and the rotary motor 53, so that the dry ice particles pass through. The delivery cavity 512 is used for delivery.

Working principle: When in use, operate the crushing mode selector 9 according to the requirements to select the required size of dry ice particles for cutting, and then the controller 7 sends an execution command to the mold changing mechanism 6, and the mold changing mechanism 6 is used to disassemble the corresponding particle die 231 to connect with the forming die head 22, and use the electric control lock 221 to lock the two. Then open the dry ice making mechanism 2 to make dry ice pellets. After being formed by the pellet die 231, the dry ice bars are continuously cut into dry ice pellets by using the rotary blade holder 232, wherein the distance between the rotary blade holder 232 and the discharge end of the pellet die head 231 is based on the required The size of dry ice particles is adjusted accordingly, so as to uniformly cut dry ice particles of the required size. Then, the dry ice particles are evenly sent to the dry ice jet cleaning device 3 through the dry ice conveying device 5 for spraying to clean the workpiece. During the cleaning process, according to the cleaning needs of the workpiece, the corresponding cleaning parameters are set on the dry ice jet cleaning device 3. to improve the cleaning effect. Through the above solution, the present invention can cut dry ice particles of different sizes for use according to cutting requirements, and the conversion of the cutting size of dry ice particles is very flexible and diversified, the cut dry ice particles are more uniform, and it has the advantages of improving its applicability and cleaning effect. advantage.

The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

An intelligent solid-state CO2 cleaning machine, comprising a casing (1), a dry ice making mechanism (2) arranged in the casing (1), and a dry ice jet cleaning device (3) connected to the dry ice making mechanism (2), wherein In that, the dry ice making mechanism (2) comprises a dry ice production device (21) provided in the housing (1), a forming die head (22) provided at one end of the dry ice production device (21), and a forming die head (22) provided at one end of the dry ice production device (21). 22) A dry ice pulverizing device (23) on one side, a dry ice particle bearing hopper (4) is arranged below the dry ice pulverizing device (23), and the dry ice bearing hopper is connected to a dry ice jet cleaning device (4) through a dry ice conveying device (5). 3) On, the dry ice crushing device (23) comprises a particle die head (231) docked with the forming die head (22), a rotary tool holder (232) arranged on one side of the particle die head (231), and a rotary tool holder (232) for driving A drive assembly (233) for moving the rotary tool holder (232) toward the pellet die head (231) or away from the pellet die head (231), the pellet die head (231) is provided with a molding cavity that is connected to the molding die head (22) The butt-jointed particle forming holes (2311) are provided with a plurality of the particle die heads (231), and the particle forming holes (2311) of the plurality of particle die heads (231) have different pore sizes, and the forming die heads (231) 22) is provided with a mold changing mechanism (6) on one side, a plurality of the particle dies (231) are mounted on the mold changing mechanism (6), and the mold changing mechanism (6) is used for switching different particle dies (231) to interface with the forming die head (22), and the die changing mechanism (6) is connected with a controller (7) for controlling its changeover.
An intelligent solid-state CO2 cleaning machine according to claim 1, characterized in that, the die changing mechanism (6) comprises a fixing frame (61) fixed on one side of the forming die (22), and is rotatably arranged on the fixing frame The rotating disk (62) on the (61) and the motor (63) for driving the rotating disk (62) to rotate, the rotating disk (62) is evenly distributed with a plurality of installation positions (621) in a circular shape, and a plurality of The pellet die heads (231) are respectively installed on a plurality of installation positions (621), and the pellet die heads (231) are oppositely positioned on the forming die head (22).
The intelligent solid-state CO2 cleaning machine according to claim 2, characterized in that, a side of the forming die (22) close to the pellet die (231) is provided with a device for locking the pellet die (231). An electric control lock (221), the electric control lock (221) is controlled by the controller (7).
An intelligent solid-state CO2 cleaning machine according to claim 1, characterized in that, the particle forming holes (2311) are arranged to gradually decrease in diameter from one end of the forming die (22) to the other end.
The intelligent solid-state CO2 cleaning machine according to claim 4, characterized in that, a plurality of guide knives (2312) are uniformly arranged on the inner wall of the particle forming hole (2311) along its circumferential direction, and the guide knives The side wall of (2312) is set in an arc shape.
An intelligent solid-state CO2 cleaning machine according to claim 1, characterized in that the dry ice conveying device (5) comprises a feeding cylinder (51) communicated with the dry ice hopper, and is arranged in the feeding cylinder (51) A conveying screw (52) and a rotating motor (53) connected with the conveying screw (52), the conveying screw (52) is provided with a screw conveying sheet (521) with a uniform pitch distribution.
The intelligent solid-state CO2 cleaning machine according to claim 6, characterized in that, the feeding cylinder (51) comprises a material storage cavity (511) and a material feeding cavity (512) connected to the material storage cavity (511) , the storage cavity (511) is connected with the dry ice bearing hopper, the conveying screw (52) is arranged on the conveying cavity (512), and the storage cavity (511) and the conveying cavity (512) are arranged between There is an electronically controlled valve (513) for controlling the communication between the two, and a detector (8) for detecting the storage of dry ice particles in the storage chamber (511) is provided on the storage chamber (511), and the detector (8) ) signal is connected to the controller (7), and the electronically controlled valve (513) is controlled by the controller (7).
An intelligent solid-state CO2 cleaning machine according to claim 1, characterized in that, the dry ice jet cleaning device (3) is provided with a pulverization mode selector (9), and the pulverization mode selector (9) is connected with the control The controller (7) is signal-connected, and the controller (7) sends a feedback signal to the die changing mechanism (6) to replace the corresponding pellet die (231) according to the dry ice particle size selected by the crushing mode selector (9).
An intelligent solid-state CO2 cleaning machine according to claim 1, characterized in that the drive assembly (233) comprises a fixing seat (2331) provided in the housing (1), and sliding through the fixing seat (2331) ) and a hydraulic cylinder (2333) for pushing the movable seat (2332) to slide, the piston rod of the hydraulic cylinder (2333) is connected with the movable seat (2332), and the rotary tool rest (232) Installed on the mobile base (2332).
The intelligent solid-state CO2 cleaning machine according to claim 9, characterized in that the rotary tool holder (232) comprises a rotary disk (2321) rotatably provided on the movable base (2332), ) and a rotary motor (2323) connected to a rotary disk (2321), and the rotary disk (2321) has a plurality of cutting areas evenly distributed in the radial direction from its center to the outside.