Dry ice cleaning device

Abstract

The utility model relates to a dry ice cleaning device, and relates to the technical field of equipment cleaning. The dry ice cleaning device comprises a machine frame, a driving mechanism, a hopper, a material distributing plate, a discharging mechanism and a recycling groove, the driving mechanism is arranged on the machine frame, the hopper is connected with the driving mechanism, a first discharging opening and a second discharging opening are formed in the material distributing plate, the driving mechanism enables a discharging opening of the hopper to be switched between the first discharging opening and the second discharging opening, and the discharging mechanism is connected with the recycling groove. The discharging mechanism is in butt joint with the first discharging opening, and the recycling groove is formed below the second discharging opening. When the discharging port of the hopper is in butt joint with the second discharging port, the snowflake-shaped dry ice in the hopper directly falls into the recovery tank from the second discharging port to be collected. When the shape and the cleanliness of the snowflake-shaped dry ice meet the requirements, the discharging opening of the hopper is in butt joint with the first discharging opening, and the workpiece to be cleaned is cleaned. As the driving mechanism can move the hopper, the snowflake-shaped dry ice in the hopper can be output through the discharging mechanism or fall into the recovery tank, and the snowflake-shaped dry ice can be conveniently used by operators.

Description

Technical Field

[0001] This utility model relates to the field of equipment cleaning technology, and in particular to a dry ice cleaning device. Background Technology

[0002] Dry ice cleaning, also known as dry ice rinsing, is a cleaning technology that uses dry ice particles. This method involves spraying dry ice particles with high-pressure air onto the surface to be cleaned. The dry ice particles rapidly sublimate upon contact with the surface, freezing, embrittled, and ultimately peeling off the dirt. Dry ice cleaning offers several significant advantages, including high efficiency, environmental friendliness, and non-destructive processing. It avoids the use of chemical cleaning agents, reducing environmental pollution, and does not damage equipment. Dry ice cleaning is suitable for a variety of applications, including industrial molds, petrochemical equipment, and electronic equipment, effectively removing grease, dirt, and other impurities while protecting the equipment surface from damage.

[0003] Chinese patent CN213645208U discloses an environmentally friendly engine cleaning device that solidifies liquid carbon dioxide into snowflake-shaped dry ice, which is then sprayed onto the engine surface for cleaning via a dry ice spraying system. However, when the device is first started, the temperature of the delivery pipe is high, resulting in poorly shaped snowflake-shaped dry ice. Dirt within the pipe also contributes to the poor cleanliness of the snowflake-shaped dry ice, failing to meet cleaning requirements. Therefore, operators typically need to discharge and collect the initial snowflake-shaped dry ice, causing some inconvenience in using the equipment. Utility Model Content

[0004] This invention provides a dry ice cleaning device that can switch between different dry ice conveying paths, can conveniently collect the snowflake-like dry ice generated in the early stage, and does not affect normal cleaning operations.

[0005] This utility model provides a dry ice cleaning device, including a frame, a drive mechanism, a hopper, a dispensing plate, a discharge mechanism, and a recycling tank. The drive mechanism is mounted on the frame, the hopper is connected to the drive mechanism, the dispensing plate is provided with a first discharge port and a second discharge port, the drive mechanism switches the discharge port of the hopper between the first discharge port and the second discharge port, the discharge mechanism is connected to the first discharge port, and the recycling tank is located below the second discharge port.

[0006] In one embodiment, the driving mechanism includes a guide assembly, a sliding frame, and a driving assembly. The guide assembly includes two guide rods arranged parallel to each other on the frame. The sliding frame is slidably disposed on the guide rods. The hopper is connected to the sliding frame. The driving assembly is disposed on the frame and connected to one side of the sliding frame.

[0007] In one embodiment, the drive assembly includes a drive member, a connecting rod, and a connecting seat. One end of the connecting rod is connected to the drive member, and the other end of the connecting rod is hinged to the connecting seat. The connecting seat is fixed to one side of the sliding frame.

[0008] In one embodiment, the sliding frame includes two oppositely arranged first connecting plates and two oppositely arranged second connecting plates. Each end of the second connecting plate is connected to one of the first connecting plates. Each end of the first connecting plate is provided with a sliding sleeve, and the guide rod passes through the sliding sleeve.

[0009] In one embodiment, the discharge mechanism includes a top cover, a feeding rotor, and a base. The top cover has a feeding port, and the feeding rotor is disposed between the top cover and the base. The surface of the feeding rotor has multiple material grooves. The two ends of the base have an air inlet and an air outlet, respectively. The interior of the base has a first partition, which divides the interior of the base into a first chamber and a second chamber. The first chamber communicates with the air inlet, and the second chamber communicates with the air outlet. The feeding rotor is located above the first partition.

[0010] In one embodiment, the discharge mechanism further includes a support base disposed between the feed rotor and the base. The support base has an arc-shaped groove for accommodating the feed rotor. The bottom of the arc-shaped groove has a connecting hole. The interior of the connecting hole has a second partition plate. The bottom of the second partition plate is aligned with the top of the first partition plate. A first channel and a second channel are formed on both sides of the second partition plate, respectively. The first channel communicates with the first chamber, and the second channel communicates with the second chamber.

[0011] In one embodiment, the support base is connected to the base via a connecting column, and an elastic gasket is provided between the support base and the top cover.

[0012] In one embodiment, two adjacent feed troughs along the length of the feed rotor are not on the same straight line.

[0013] In one embodiment, the top surface of the material distribution plate is further provided with a chute for the bottom of the hopper to slide, and the first discharge port and the second discharge port are both opened at the bottom of the chute.

[0014] In one embodiment, a vibratory motor is installed on the outer wall of the hopper.

[0015] Compared with existing technologies, the advantages of this invention are as follows: When the device is first started, the discharge port of the hopper connects with the second discharge port, and the snowflake-shaped dry ice in the hopper does not enter the discharge mechanism but falls directly from the second discharge port into the recycling tank for collection. Once the shape and cleanliness of the snowflake-shaped dry ice meet the requirements, the drive mechanism moves the hopper, and the discharge port connects with the first discharge port. The snowflake-shaped dry ice in the hopper falls through the first discharge port into the discharge mechanism and is output through the discharge mechanism to clean the workpiece. After cleaning, the drive mechanism connects the hopper with the second discharge port again, allowing the remaining snowflake-shaped dry ice to be discharged into the recycling tank for recovery. Because the dry ice falling into the recycling tank is not pressurized by the discharge mechanism but falls directly into the recycling tank by gravity, collection is more convenient. This dry ice cleaning device can move the hopper via the drive mechanism to output the snowflake-shaped dry ice in the hopper through the discharge mechanism or directly into the recycling tank for recovery, making it convenient for operators. Attached Figure Description

[0016] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the dry ice cleaning device in an embodiment of this utility model;

[0018] Figure 2 This is a perspective view of the dry ice cleaning device after the frame has been removed in an embodiment of this utility model;

[0019] Figure 3 This is a perspective view of the material distribution plate in an embodiment of this utility model;

[0020] Figure 4 yes Figure 2 Enlarged view of point A in the middle;

[0021] Figure 5 This is a perspective view of the discharge mechanism in an embodiment of this utility model;

[0022] Figure 6 This is an exploded view of the discharge mechanism in an embodiment of this utility model;

[0023] Figure 7 This is a cross-sectional view of the discharge mechanism in an embodiment of this utility model;

[0024] Figure 8 This is a perspective view of the feed rotor in an embodiment of this utility model.

[0025] Figure label:

[0026] 1. Frame; 2. Drive mechanism; 21. Guide assembly; 211. Guide rod; 22. Sliding frame; 221. First connecting plate; 222. Second connecting plate; 223. Sliding sleeve; 23. Drive assembly; 231. Drive component; 232. Connecting rod; 233. Connecting seat; 3. Hopper; 4. Distributor plate; 41. First discharge port; 42. Second discharge port; 43. Slide groove; 5. Discharge mechanism; 51. Top cover; 511. Feed port 52. Feeding rotor; 521. Feed trough; 53. Base; 531. Air inlet; 532. Air outlet; 533. First partition; 534. First chamber; 535. Second chamber; 54. Support base; 541. Arc groove; 542. Connecting hole; 543. Second partition; 544. First channel; 545. Second channel; 55. Drive motor; 56. Connecting column; 57. Elastic gasket; 6. Recycling trough; 7. Vibration motor. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] like Figures 1 to 3 As shown, a dry ice cleaning device according to an embodiment of the present invention includes a frame 1, a drive mechanism 2, a hopper 3, a distribution plate 4, a discharge mechanism 5, and a recycling tank 6. The drive mechanism 2 is mounted on the frame 1, the hopper 3 is connected to the drive mechanism 2, the distribution plate 4 is provided with a first discharge port 41 and a second discharge port 42, the drive mechanism 2 causes the discharge port of the hopper 3 to switch between the first discharge port 41 and the second discharge port 42, the discharge mechanism 5 is connected to the first discharge port 41, and the recycling tank 6 is located below the second discharge port 42.

[0029] like Figure 3 As shown, the top surface of the distribution plate 4 is also provided with a sliding groove 43 for the bottom of the feeding hopper 3 to slide. The first discharge port 41 and the second discharge port 42 are both opened at the bottom of the sliding groove 43. The sliding groove 43 allows the bottom of the feeding hopper 3 to move back and forth only along the direction in which the sliding groove 43 is opened, thereby improving the stability of the feeding hopper 3 when it moves.

[0030] When the device is first started, the discharge port of hopper 3 connects with the second discharge port 42. The snowflake-shaped dry ice in hopper 3 does not enter the discharge mechanism 5, but falls directly from the second discharge port 42 into the recovery tank 6 for collection. When the shape and cleanliness of the snowflake-shaped dry ice meet the requirements, the drive mechanism 2 causes hopper 3 to shift, and the discharge port of hopper 3 connects with the first discharge port 41. The snowflake-shaped dry ice in hopper 3 falls through the first discharge port 41 into the discharge mechanism 5 and is output through the discharge mechanism 5 to clean the workpiece to be cleaned. After cleaning, the drive mechanism 2 connects hopper 3 with the second discharge port 42 again, so that the tail end of the snowflake-shaped dry ice is discharged into the recovery tank 6 for recycling. Since the dry ice falling into the recovery tank 6 is not pressurized by the discharge mechanism 5, but falls directly into the recovery tank 6 by gravity, it is more convenient to collect. A vibration motor 7 is installed on the outer wall of the hopper 3, which can make the hopper 3 vibrate, improve the material conveying efficiency, and facilitate the removal of snowflake-shaped dry ice remaining in the hopper 3 and its falling into the recycling tank 6.

[0031] The dry ice cleaning device in this embodiment can move the hopper 3 through the drive mechanism 2 so that the snowflake-shaped dry ice in the hopper 3 can be output through the discharge mechanism 5 or fall directly into the recycling tank 6 for recycling, which is convenient for operators to use.

[0032] Since there are three of each in this embodiment, namely the drive mechanism 2, the hopper 3, the dividing plate 4, and the discharge mechanism 5, they can clean three objects at the same time without interfering with each other.

[0033] like Figure 2 and Figure 4 As shown, the drive mechanism 2 includes a guide assembly 21, a sliding frame 22, and a drive assembly 23. The guide assembly 21 includes two guide rods 211 arranged parallel to each other on the frame 1. The sliding frame 22 is slidably mounted on the guide rods 211, and the hopper 3 is connected to the sliding frame 22. The drive assembly 23 is mounted on the frame 1 and connected to one side of the sliding frame 22. The hopper 3 is relatively large, so it is mounted on the sliding frame 22 to ensure reliable connection. The guide assembly 21 allows the sliding frame 22 and the hopper 3 to move smoothly under the action of the drive assembly 23.

[0034] like Figure 4 As shown, the drive assembly 23 includes a drive member 231, a connecting rod 232, and a connecting seat 233. One end of the connecting rod 232 is connected to the drive member 231, and the other end of the connecting rod 232 is hinged to the connecting seat 233. The connecting seat 233 is fixed to one side of the sliding frame 22. In this embodiment, the drive member 231 is a cylinder. Because one end of the connecting rod 232 is hinged to the connecting seat 233, the connecting rod 232 and the connecting seat 233 can rotate relative to each other at a certain angle instead of being rigidly connected. This helps to reduce vibration and improve the stability of the sliding frame 22 when it moves.

[0035] Specifically, the sliding frame 22 includes two opposing first connecting plates 221 and two opposing second connecting plates 222. Each end of a second connecting plate 222 is connected to one of the first connecting plates 221. Both ends of the first connecting plates 221 are provided with sliding sleeves 223, and guide rods 211 pass through the sliding sleeves 223. The sliding frame 22 has a square frame structure, making it less prone to deformation. The top of the hopper 3 is located inside the sliding frame 22, and snowflake-shaped dry ice is input from above the hopper 3. By providing sliding sleeves 223, the resistance during the movement of the sliding frame 22 can be reduced, making the movement of the sliding frame 22 more stable.

[0036] like Figure 5 and Figure 6 As shown, the discharge mechanism 5 includes a top cover 51, a feeding rotor 52, and a base 53. The top cover 51 is provided with a feeding port 511. The feeding rotor 52 is disposed between the top cover 51 and the base 53. The surface of the feeding rotor 52 is provided with multiple material grooves 521. The two ends of the base 53 are respectively provided with an air inlet 531 and an air outlet 532. The interior of the base 53 is provided with a first partition 533, which divides the interior of the base 53 into a first chamber 534 and a second chamber 535. The first chamber 534 is connected to the air inlet 531, and the second chamber 535 is connected to the air outlet 532. The feeding rotor 52 is located above the first partition 533. Snowflake-shaped dry ice in hopper 3 enters feed inlet 511 through first discharge port 41, and then falls into feed trough 521 on feed rotor 52. Feed rotor 52 is driven by drive motor 55. The rotating feed rotor 52 transports snowflake-shaped dry ice to base 53. Air input from air inlet 531 blows the snowflake-shaped dry ice in base 53 out of air outlet 532 (the pipe on air outlet 532 is not shown). First baffle 533 guides the airflow, so that the airflow can better impact feed trough 521 and better remove snowflake-shaped dry ice from feed trough 521.

[0037] Furthermore, the discharge mechanism 5 also includes a support base 54, which is disposed between the feed rotor 52 and the base 53. The support base 54 has an arc-shaped groove 541 for accommodating the feed rotor 52. The bottom of the arc-shaped groove 541 has a connecting hole 542, and the interior of the connecting hole 542 has a second partition 543. The bottom of the second partition 543 is aligned with the top of the first partition 533. A first channel 544 and a second channel 545 are formed on both sides of the second partition 543, respectively. The first channel 544 communicates with the first chamber 534, and the second channel 545 communicates with the second chamber 535. The support base 54 can effectively support the feed rotor 52, improving the stability of the feed rotor 52 during rotation. In order to smoothly guide the airflow in the base 53 to the feed rotor 52, a second baffle 543 is provided in the connecting hole 542. The airflow in the first chamber 534 is deflected upward by the first baffle 533 and enters the first channel 544, generating airflow impact on the material trough 521. The airflow then carries snowflake-shaped dry ice into the second channel 545 and flows into the second chamber 535, and finally sprays out from the air outlet 532.

[0038] like Figure 7 As shown, the support base 54 is connected to the base 53 via the connecting column 56, and an elastic gasket 57 is provided between the support base 54 and the top cover 51. The support base 54 is not fixed to the base 53 by the connecting column 56, but can move slightly in the vertical direction. The airflow into the base 53 can lift the support base 54 a small distance. The elastic gasket 57 can deform and will not hinder the displacement of the support base 54, so that the surface of the feed rotor 52 is in close contact with the support base 54, thereby achieving a seal.

[0039] like Figure 8 As shown, two adjacent feed troughs 521 along the length of the feed rotor 52 are not on the same straight line. Due to the staggered arrangement of multiple feed troughs 521, no matter what angle the feed rotor 52 rotates to, at least one feed trough 521 will connect the first channel 544 and the second channel 545, thereby forming an air circulation channel.

[0040] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A dry ice cleaning device, characterized in that, The device includes a frame, a drive mechanism, a hopper, a distribution plate, a discharge mechanism, and a recycling trough. The drive mechanism is mounted on the frame, and the hopper is connected to the drive mechanism. The distribution plate has a first discharge port and a second discharge port. The drive mechanism switches the discharge port of the hopper between the first discharge port and the second discharge port. The discharge mechanism is connected to the first discharge port. The recycling trough is located below the second discharge port. The drive mechanism includes a guide assembly, a sliding frame, and a drive component. The guide assembly includes two guide rods arranged parallel to each other on the frame. The sliding frame is slidably mounted on the guide rods. The hopper is connected to the sliding frame, and the top of the hopper is located inside the sliding frame. The drive component is mounted on the frame and connected to one side of the sliding frame.

2. The dry ice cleaning device according to claim 1, characterized in that, The drive assembly includes a drive component, a connecting rod, and a connecting seat. One end of the connecting rod is connected to the drive component, and the other end of the connecting rod is hinged to the connecting seat. The connecting seat is fixed to one side of the sliding frame.

3. The dry ice cleaning device according to claim 1, characterized in that, The sliding frame includes two oppositely arranged first connecting plates and two oppositely arranged second connecting plates. Each end of the second connecting plate is connected to one of the first connecting plates. Each end of the first connecting plate is provided with a sliding sleeve, and the guide rod passes through the sliding sleeve.

4. The dry ice cleaning device according to claim 1, characterized in that, The discharge mechanism includes a top cover, a feeding rotor, and a base. The top cover has a feeding port. The feeding rotor is disposed between the top cover and the base. The surface of the feeding rotor has multiple material grooves. The two ends of the base have an air inlet and an air outlet, respectively. The interior of the base has a first partition, which divides the interior of the base into a first chamber and a second chamber. The first chamber communicates with the air inlet, and the second chamber communicates with the air outlet. The feeding rotor is located above the first partition.

5. The dry ice cleaning device according to claim 4, characterized in that, The discharge mechanism further includes a support base, which is disposed between the feed rotor and the base. The support base has an arc-shaped groove for accommodating the feed rotor. The bottom of the arc-shaped groove has a connecting hole. The interior of the connecting hole has a second partition plate. The bottom of the second partition plate is aligned with the top of the first partition plate. The two sides of the second partition plate form a first channel and a second channel, respectively. The first channel communicates with the first chamber, and the second channel communicates with the second chamber.

6. The dry ice cleaning device according to claim 5, characterized in that, The support base is connected to the base via a connecting column, and an elastic gasket is provided between the support base and the top cover.

7. The dry ice cleaning device according to claim 4, characterized in that, The two adjacent feed troughs along the length of the feed rotor are not on the same straight line.

8. The dry ice cleaning device according to claim 1, characterized in that, The top surface of the material distribution plate is also provided with a sliding groove for the bottom of the hopper to slide, and the first discharge port and the second discharge port are both opened at the bottom of the sliding groove.

9. The dry ice cleaning device according to claim 1, characterized in that, A vibration motor is installed on the outer wall of the hopper.

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