Stirring device of dry ice cleaning machine

Abstract

The utility model discloses a stirring device of a dry ice cleaning machine. The stirring device comprises a stirring barrel, a stirring motor, a stirring rod and a stirring paddle, wherein the stirring motor is fixedly arranged outside the stirring barrel; the stirring rod is arranged in the stirring barrel and is driven by the stirring motor; the stirring barrel comprises an inner barrel, an outer barrel sleeved outside the inner barrel, and a thermal insulation layer cushioned between the inner barrel and the outer barrel. When the stirring device of the dry ice cleaning machine is used, after dry ice particles are poured into the stirring barrel, the stirring motor is started to drive the stirring rod and the stirring paddle to rotate, the dry ice particles in the stirring barrel are stirred in real time, and the dry ice particles in the stirring barrel are prevented from being bonded with one another. Furthermore, by arranging the inner barrel, the outer barrel and the heat preservation layer, heat exchange between the dry ice particles in the barrel and the outside can be reduced, the dry ice particles are prevented from being mutually bonded, the dry ice particles in the stirring barrel can be conveniently and smoothly discharged from the discharging opening of the stirring barrel to be ground, and the grinding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of dry ice cleaning, and more specifically to a stirring device of a dry ice cleaning machine. Background Art

[0002] Dry ice cleaning machine is a type of cleaning machine. Dry ice cleaning has been developing rapidly around the world. The cleaning system uses high-pressure air to spray dry ice pellets from the dry ice cleaning machine onto the work surface that needs to be cleaned, and uses the physical reflection of temperature difference to make different substances separate at different shrinkage speeds. When the dry ice pellets at -78 degrees Celsius come into contact with the dirt surface, they will produce a brittle explosion phenomenon, causing the dirt to shrink and loosen. Then the dry ice pellets will instantly vaporize and expand 800 times. The product's strong peeling force will quickly and thoroughly remove the dirt from the surface of the object, thereby achieving a fast, efficient, safe and energy-saving cleaning effect.

[0003] Before dry ice cleaning, the block of dry ice needs to be ground into small particles (such as snowflakes). During the grinding process, the dry ice in the barrel easily absorbs external heat and causes the dry ice to stick to each other or even agglomerate, making it difficult to grind normally. Utility Model Content

[0004] The utility model aims at the above defects of the prior art and provides a stirring device for a dry ice cleaning machine.

[0005] The technical solution adopted by the utility model to solve the technical problem is: construct a stirring device of a dry ice cleaning machine, the stirring device comprises a stirring barrel, a stirring motor fixedly arranged outside the stirring barrel, a stirring rod arranged in the stirring barrel and driven by the stirring motor, and a stirring paddle fixedly arranged on the stirring rod and rotating with the stirring rod;

[0006] The mixing barrel comprises an inner barrel, an outer barrel sleeved outside the inner barrel, and a heat-insulating layer padded between the inner barrel and the outer barrel.

[0007] In the stirring device of the dry ice cleaning machine described in the utility model, the stirring rod is transversely arranged in the stirring barrel, the stirring rod is fixedly connected to the output shaft of the stirring motor, and the stirring paddle is a plurality of "D"-shaped stirring blades fixedly arranged on the stirring rod.

[0008] In the stirring device of the dry ice cleaning machine described in the utility model, a first connecting part is fixedly provided at the first end of the stirring rod, a second connecting part is fixedly provided at the second end of the stirring rod, the first end of each stirring piece in the multiple "D"-shaped stirring pieces is fixedly connected to the first connecting part, and the second end of each stirring piece in the multiple "D"-shaped stirring pieces is fixedly connected to the second connecting part.

[0009] In the stirring device of the dry ice cleaning machine described in the utility model, each of the multiple "D"-shaped stirring blades includes a first inclined blade fixedly connected to the first connecting part, a second inclined blade fixedly connected to the second connecting part, and a horizontal connecting plate fixedly connected to the first inclined blade and the second inclined blade.

[0010] In the stirring device of the dry ice cleaning machine described in the utility model, the stirring rod is longitudinally arranged in the stirring barrel, a first transmission wheel is provided on the output shaft of the stirring motor, a second transmission wheel is provided on the stirring rod, and a transmission belt or a transmission chain is provided between the first transmission wheel and the second transmission wheel.

[0011] In the stirring device of the dry ice cleaning machine described in the utility model, the stirring device also includes a support plate fixedly arranged in the stirring barrel for supporting the stirring rod, the edge of the support plate is fixedly connected to the stirring barrel, and a rotating hole is provided in the middle of the support plate for the stirring rod to pass through.

[0012] In the stirring device of the dry ice cleaning machine described in the utility model, a connecting hole for the transmission belt or transmission chain to pass through is provided on the side wall of the stirring barrel, and a sealing cover sealingly covers the connecting hole, the transmission belt or transmission chain, and the second transmission wheel is provided on the support plate.

[0013] In the stirring device of the dry ice cleaning machine described in the utility model, a drop opening for allowing dry ice particles to pass through is provided on a side of the support plate away from the sealing cover.

[0014] In the stirring device of the dry ice cleaning machine described in the utility model, the stirring paddle includes a first rod body vertically fixedly connected to the upper middle portion of the stirring rod, and a second rod body fixedly arranged between the first rod body and the lower middle portion of the stirring rod.

[0015] In the stirring device of the dry ice cleaning machine described in the utility model, a vibration motor is fixedly arranged on the outer side wall of the stirring barrel.

[0016] The stirring device of the dry ice cleaning machine of the utility model has the following beneficial effects: when using the stirring device of the dry ice cleaning machine of the utility model, after pouring the dry ice particles into the stirring barrel, the stirring motor is started to drive the stirring rod and the stirring paddle to rotate, and the dry ice particles in the stirring barrel are stirred in real time to prevent the dry ice particles in the stirring barrel from sticking to each other. Furthermore, by providing an inner barrel, an outer barrel and a heat-insulating layer, the heat exchange between the dry ice particles in the barrel and the outside world can be reduced, the dry ice particles can be prevented from sticking to each other, and the safety of the entire dry ice device can be improved, so that the dry ice particles in the stirring barrel can be discharged smoothly from the discharge port of the stirring barrel for grinding, thereby improving the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0018] Figure 1 It is a cross-sectional structural schematic diagram of a first embodiment of a stirring device of a dry ice cleaning machine of the utility model;

[0019] Figure 2 It is a cross-sectional structural schematic diagram of a second embodiment of the stirring device of the dry ice cleaning machine of the utility model;

[0020] Figure 3 The utility model is a schematic diagram of a partially exploded structure of a stirring device of a dry ice cleaning machine. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1 As shown in FIG. 2 , in a first embodiment of a stirring device for a dry ice cleaning machine of the present invention, the stirring device 10 includes a stirring barrel 11, a stirring motor 12 fixedly mounted outside the stirring barrel 11, a stirring rod 13 disposed in the stirring barrel 11 and driven by the stirring motor 12, and a stirring paddle 14 fixedly mounted on the stirring rod 13 and rotating with the stirring rod 13.

[0023] The mixing barrel 11 includes an inner barrel 15 , an outer barrel 16 sleeved outside the inner barrel 15 , and a heat-insulating layer 17 cushioned between the inner barrel 15 and the outer barrel 16 .

[0024] It can be understood that the bottom of the mixing barrel 11 is provided with a discharge port for discharging dry ice particles.

[0025] In order to facilitate the outflow of dry ice particles, the upper middle and upper parts of the mixing barrel 11 are cylindrical, and the lower part of the mixing barrel 11 is a conical cylinder.

[0026] The insulation layer 17 is an insulation cotton layer. The inner diameter of the outer cylinder 16 of the mixing barrel 11 is larger than the outer diameter of the inner cylinder 15, so that a gap is left between the outer cylinder 16 and the inner cylinder 15 of the mixing barrel 11. During assembly, the insulation surface layer can be filled into the gap between the inner cylinder 15 and the outer cylinder 16 to achieve a heat insulation effect.

[0027] Compared with the prior art method of only wrapping the barrel with thermal insulation cotton, when using the stirring device 10 of the dry ice cleaning machine of the utility model, the stirring barrel is an integrated part, which has high safety and good thermal insulation effect. After the dry ice particles are poured into the stirring barrel 11, the stirring motor 12 is started to drive the stirring rod 13 and the stirring paddle 14 to rotate, and the dry ice particles in the stirring barrel 11 are stirred in real time to prevent the dry ice particles in the stirring barrel 11 from sticking to each other. Furthermore, by providing the inner barrel 15, the outer barrel 16 and the thermal insulation layer 17, the heat exchange between the dry ice particles in the barrel and the outside world can be reduced, and the dry ice particles can be prevented from sticking to each other, so that the dry ice particles in the stirring barrel 11 can be discharged smoothly from the discharge port of the stirring barrel 11 for grinding, thereby improving the grinding efficiency.

[0028] like Figure 1 As shown, in the first embodiment, the stirring rod 13 is transversely disposed in the stirring barrel 11 , the stirring rod 13 is fixedly connected to the output shaft of the stirring motor 12 , and the stirring paddle 14 is a plurality of “D”-shaped stirring blades 18 fixedly disposed on the stirring rod 13 .

[0029] In this embodiment, the stirring motor 12 is located outside the stirring barrel 11 and on one side of the stirring barrel 11, which can prevent the stirring motor 12 from being frozen by dry ice particles during operation and being unable to work.

[0030] Preferably, the shape of the “D”-shaped stirring blade 18 corresponds to the shape of the conical tube at the bottom of the stirring barrel 11, which can prevent the “D”-shaped stirring blade 18 from colliding with the conical tube at the bottom of the stirring barrel 11 when rotating.

[0031] Specifically, a first connection portion 19 is fixedly provided at the first end of the stirring rod 13, a second connection portion 20 is fixedly provided at the second end of the stirring rod 13, a first end of each stirring blade 18 in the plurality of "D"-shaped stirring blades 18 is fixedly connected to the first connection portion 19, and a second end of each stirring blade 18 in the plurality of "D"-shaped stirring blades 18 is fixedly connected to the second connection portion 20. Each stirring blade 18 in the plurality of "D"-shaped stirring blades 18 includes a first oblique blade 21 fixedly connected to the first connection portion 19, a second oblique blade 22 fixedly connected to the second connection portion 20, and a horizontal connection blade 23 fixedly connecting the first oblique blade 21 and the second oblique blade 22. In actual operation, the number of stirring blades 18 can be set according to actual conditions, and can be set to one or more. This embodiment does not impose any limitation on the number of stirring blades 18.

[0032] In this embodiment, since the bottom of the mixing barrel 11 is in a conical cylindrical shape, the stirring blade 18 is configured as a "D"-shaped stirring blade 18 corresponding to the conical cylindrical shape. During the stirring process, the "D"-shaped stirring blade 18 can rotate to the bottom of the mixing barrel 11 to fully stir the dry ice particles in the mixing barrel 11 to prevent the dry ice particles from agglomerating, and further prevent the dry ice particles from agglomerating at the discharge port of the mixing barrel 11.

[0033] In some preferred embodiments, the “D”-shaped stirring blade 18 can also be adjusted to an “S”-shaped stirring blade 18 .

[0034] like Figure 2 , 3 As shown, in the second embodiment, the stirring rod 13 is longitudinally arranged in the stirring barrel 11, a first transmission wheel 24 is provided on the output shaft of the stirring motor 12, a second transmission wheel 25 is provided on the stirring rod 13, and a transmission belt or transmission chain 26 is provided between the first transmission wheel 24 and the second transmission wheel 25.

[0035] Preferably, in order to improve transmission efficiency, the first transmission wheel 24 and the second transmission wheel 25 are both gear transmission wheels, and the first transmission wheel 24 and the second transmission wheel 25 are driven by the transmission wheels.

[0036] During the stirring process, the stirring motor 12 drives the first transmission wheel 24 to rotate, and the first transmission wheel 24 drives the second transmission wheel 25 to rotate through the transmission chain 26. The second transmission wheel 25 simultaneously drives the stirring rod 13 and the stirring paddle 14 to rotate for stirring.

[0037] In order to stabilize the longitudinally arranged stirring rod 13, the stirring device 10 also includes a support plate 27 fixed in the stirring barrel 11 for supporting the stirring rod 13. The edge of the support plate 27 is fixedly connected to the stirring barrel 11, and a rotating hole 28 is provided in the middle of the support plate 27 for the stirring rod 13 to pass through.

[0038] Preferably, in order to reduce the interference between the stirring rod 13 and the rotating hole 28, a bearing is sleeved between the stirring rod 13 and the rotating hole 28. The bearing is fixedly connected to the support plate 27 and is rotatably connected to the stirring rod 13, which can not only stabilize the stirring rod 13, but also prevent mutual interference between the stirring rod 13 and the rotating hole 28.

[0039] In order to facilitate the transmission wheel or transmission belt to extend into the mixing barrel 11 and connect with the second transmission wheel 25, a connecting hole 29 is provided on the side wall of the mixing barrel 11 for the transmission belt or transmission chain 26 to pass through, and a sealing cover 30 is provided on the support plate 27 to cover the connecting hole 29, the transmission belt or transmission chain 26, and the sealing cover 30 of the second transmission wheel 25.

[0040] In this embodiment, by providing a sealing cover 30, the connecting hole 29, the transmission belt or transmission chain 26, and the second transmission wheel 25 can be covered to prevent dry ice particles from contacting the transmission belt or transmission chain 26 and the second transmission wheel 25, and at the same time, it can prevent dry ice particles from leaking out of the connecting hole 29, and at the same time, it can also have a heat insulation effect.

[0041] Specifically, the sealing cover 30 includes a top wall and a side surrounding wall, and the side surrounding wall is fixedly connected to the support plate 27 .

[0042] In order to facilitate the movement of the dry ice particles in the mixing barrel 11 to the lower part of the mixing barrel, a drop opening 31 for the dry ice particles to pass through is provided on a side of the support plate 27 away from the sealing cover 30 .

[0043] During the stirring process, the dry ice particles located at the upper part of the stirring barrel 11 can enter the lower part of the stirring barrel 11 from the drop opening 31, and finally be discharged from the discharge opening at the bottom of the stirring barrel 11 for grinding.

[0044] In this embodiment, the stirring paddle 14 includes a first rod body 32 vertically fixedly connected to the upper middle portion of the stirring rod 13 , and a second rod body 33 fixedly disposed between the first rod body 32 and the lower middle portion of the stirring rod 13 .

[0045] Preferably, the inclination angle of the second rod 33 is consistent with the inclination angle of the conical barrel portion of the mixing barrel 11, so that during the mixing process, the second rod 33 can mix the dry ice particles along the inner wall of the conical barrel, thereby increasing the mixing area.

[0046] In order to achieve a better discharging effect, a vibration motor 34 is fixedly installed on the outer wall of the mixing barrel 11 .

[0047] In addition, in the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", "stacked" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A stirring device for a dry ice cleaning machine, characterized in that: The stirring device comprises a stirring barrel, a stirring motor fixedly mounted outside the stirring barrel, a stirring rod arranged in the stirring barrel and driven by the stirring motor, and a stirring paddle fixedly mounted on the stirring rod and rotating with the stirring rod; The mixing barrel comprises an inner barrel, an outer barrel sleeved outside the inner barrel, and a heat-insulating layer padded between the inner barrel and the outer barrel.

2. The stirring device of the dry ice cleaning machine according to claim 1, characterized in that: The stirring rod is transversely arranged in the stirring barrel, the stirring rod is fixedly connected to the output shaft of the stirring motor, and the stirring paddle is a plurality of "D"-shaped stirring blades fixedly arranged on the stirring rod.

3. The stirring device of the dry ice cleaning machine according to claim 2, characterized in that: A first connecting portion is fixedly provided at the first end of the stirring rod, and a second connecting portion is fixedly provided at the second end of the stirring rod. The first end of each stirring piece in the multiple "D"-shaped stirring pieces is fixedly connected to the first connecting portion, and the second end of each stirring piece in the multiple "D"-shaped stirring pieces is fixedly connected to the second connecting portion.

4. The stirring device of the dry ice cleaning machine according to claim 3, characterized in that: Each of the plurality of "D"-shaped stirring blades includes a first inclined blade fixedly connected to the first connecting portion, a second inclined blade fixedly connected to the second connecting portion, and a horizontal connecting blade fixedly connecting the first inclined blade and the second inclined blade.

5. The stirring device of the dry ice cleaning machine according to claim 1, characterized in that: The stirring rod is longitudinally arranged in the stirring barrel, a first transmission wheel is arranged on the output shaft of the stirring motor, a second transmission wheel is arranged on the stirring rod, and a transmission belt or a transmission chain is arranged between the first transmission wheel and the second transmission wheel.

6. The stirring device of the dry ice cleaning machine according to claim 5, characterized in that: The stirring device also includes a support plate fixedly arranged in the stirring barrel for supporting the stirring rod, the edge of the support plate is fixedly connected to the stirring barrel, and a rotation hole is provided in the middle of the support plate for the stirring rod to pass through.

7. The stirring device of the dry ice cleaning machine according to claim 6, characterized in that: A connecting hole for the transmission belt or transmission chain to pass through is provided on the side wall of the mixing barrel, and a sealing cover for sealingly covering the connecting hole, the transmission belt or transmission chain, and the second transmission wheel is provided on the support plate.

8. The stirring device of the dry ice cleaning machine according to claim 7, characterized in that: A drop opening for allowing dry ice particles to pass through is provided on one side of the support plate away from the sealing cover.

9. The stirring device of the dry ice cleaning machine according to claim 5, characterized in that: The stirring paddle comprises a first rod body vertically fixedly connected to the upper middle portion of the stirring rod, and a second rod body fixedly arranged between the first rod body and the lower middle portion of the stirring rod.

10. The stirring device of the dry ice cleaning machine according to claim 1, characterized in that: A vibration motor is fixedly arranged on the outer side wall of the mixing barrel.

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