CN211924896U - A kind of floating sealing mechanism of feeding tray of dry ice cleaning machine - Google Patents

Abstract

The utility model provides a dry ice cleaning machine pay-off dish sealing mechanism that floats, include: an upper support and a piston assembly; the upper support is provided with an air inlet, an air inlet cavity and a piston cavity which are communicated with the air inlet are sequentially arranged in the upper support, the piston assembly comprises a piston and a sealing separation disc which are fixedly connected, the piston is slidably arranged in the piston cavity, and the lower end of the sealing separation disc corresponds to an external feeding disc; during working, the high-pressure air at the air inlet pushes the piston to downwards support the lower end face of the sealing partition disc against the feeding disc, and then the feeding disc is pushed to support against an external lower support, so that sealing of two side end faces of the feeding disc in a working state is realized. The piston and the sealing separation disc of the utility model can float, and the sealing between the feeding disc and the upper support and the lower support is realized by connecting high-pressure gas, so that the problem of gas leakage can not be generated during the work; the sealed separation disc can float, the frictional resistance of the feeding disc is reduced, and the phenomenon of blocking cannot occur.

Description

A kind of floating sealing mechanism of feeding tray of dry ice cleaning machine

technical field

The utility model relates to the technical field of dry ice cleaning machines, in particular to a floating sealing mechanism for a feeding tray of a dry ice cleaning machine.

Background technique

The cleaning system of the dry ice cleaning machine sprays the dry ice particles of the dry ice cleaning machine to the working surface to be cleaned through high-pressure air, and uses the physical reflection of the temperature difference to separate different substances at different shrinkage speeds. Dry ice cleaning can achieve fast, efficient, safe and energy-saving cleaning effects. The dry ice cleaning machine needs to spray the dry ice particles in the dry refrigerator out of the discharge port through high-pressure gas. The traditional dry ice cleaning machine has the phenomenon that the high-pressure gas is easy to be mixed and leaked into the dry refrigerator, causing potential safety hazards; therefore, the material can be moved by rotating the feeding tray. , so that the dry ice discharge port of the dry refrigerator is not directly connected to the dry ice discharge port of the washing machine, and the dry ice material of the dry ice discharge port falls into the blanking cavity of the feeding tray, and the dry ice material is indirectly sent to the feeding tray through the rotation of the feeding tray. The dry ice discharge port is connected to the high pressure air through the air inlet, and the dry ice material in the blanking cavity is sprayed out through the dry ice discharge port; The possible problems in the transmission connection of the reducer are: when the feeding tray is rotating, if the gap between the feeding tray and the upper and lower supports is too small, the feeding tray will not rotate smoothly, and it is easy to cause jamming. If the gap is too large, when the high-pressure air passes through the blanking cavity to the dry ice discharge port, air leakage is likely to occur, which affects the dry ice blasting effect and is prone to noise.

Utility model content

(1) Technical problems to be solved

The technical problem to be solved by the utility model is to provide a floating sealing mechanism for the feeding tray of a dry ice cleaning machine with a reliable structure, which can solve the problems that the feeding tray is easily leaked during operation or the feeding tray is easily worn.

(2) Technical solutions

In order to solve the above technical problems, the present utility model provides a floating sealing mechanism for a feed tray of a dry ice cleaning machine, which includes: an upper support and a piston assembly; the upper support is provided with an air inlet, and the upper support is arranged in sequence There are an intake cavity and a piston cavity communicating with the intake port, the piston assembly includes a fixedly connected piston and a sealing spacer, the piston is slidably installed in the piston cavity, and the lower end of the seal spacer corresponds to the outside When working, the high-pressure gas at the air inlet pushes the piston downward to abut the lower end face of the sealing spacer against the feeding tray, and then push the feeding tray against the external on the lower support, so as to realize the sealing of the two side end faces of the feeding tray in the working state. The piston and the sealing spacer are correspondingly provided with an air passage communicated with the air inlet chamber, and the air passage communicates with the dry ice outlet on the lower support. The high-pressure gas of the air inlet can pass through the gas passage, enter the blanking cavity of the feeding tray, and finally enter the dry ice discharge port; and the floating piston assembly, after the high-pressure gas is connected, is sealed. The spacer can be sealed against the feeding tray and the lower support, so as to realize the sealing between the feeding tray and the upper support and the lower support, and the high-pressure gas will not pass through the blanking cavity of the feeding tray. Gas leakage occurs; at the same time, the piston can slide in the piston cavity, and when the feeding disc rotates, the upper support will not be stuck, and the frictional force generated by the feeding disc during rotation will not be increased.

Further, a discharge channel corresponding to the dry ice discharge port of the upper support is provided on the sealing spacer.

Further, the air passage and the unloading passage are respectively corresponding to the blanking chambers on the feeding tray, and the high-pressure air at the air inlet passes through the air passage during operation to remove the falling material. The dry ice in the material chamber is pushed to the dry ice discharge port; in the working state, the piston and the sealing spacer are pressed down, sealingly contacting the feeding plate and the lower support, so that the upper and lower sides of the feeding plate are in contact with each other. Each side end face is in a pressurized and sealed state to prevent leakage of high-pressure gas at the air inlet and the air passage, and the piston can slide up and down in the piston cavity, so the higher the pressure on the piston The higher the pressure, the greater the pressure acting on the feeding tray and the lower support, and the two are in a proportional relationship, so that the blanking cavity of the feeding tray can ensure a good sealing effect during operation, and the high pressure The gas can only be passed through the air passage to the dry ice discharge port, so as to push the dry ice in the blanking chamber to the dry ice discharge to realize the spraying of dry ice.

Further, a first sealing ring is installed between the piston and the sealing spacer, and the piston is positioned and installed on the seal spacer through a positioning pin.

Further, a vent through hole corresponding to the vent port of the upper support is provided on the sealing spacer.

Further, a plurality of second sealing rings are installed on the outside of the piston.

(3) Beneficial effects

The utility model has the following advantages:

1. The piston and the sealing spacer can slide in the piston cavity in the upper support. After the high pressure gas is connected, the sealing spacer can seal against the feeding plate and the lower support, so as to realize the integration between the feeding plate and the upper support. The sealing between the lower supports will not cause gas leakage when the high-pressure gas passes through the blanking cavity of the feeding tray; at the same time, the greater the high pressure of the access, the greater the pressure on the sealing spacer, so that the feeding tray is The greater the adhesion force between the upper support and the lower support, the two are in direct proportion, so there will be no gas leakage problem;

2. The piston can slide in the piston cavity. When the feeding disc rotates, the feeding disc will not be stuck between the upper support and the lower support, and it will not increase the frictional force generated by the feeding disc when it rotates, reducing the The frictional resistance of the feeding tray is reduced, the phenomenon of jamming will not occur, and the wear of the feeding tray is also reduced.

Description of drawings

Fig. 1 is the perspective view of the upper bearing and the lower bearing of the floating sealing mechanism of the feeding tray of the dry ice cleaning machine of the utility model;

Fig. 2 is the exploded view of the upper bearing and the lower bearing of the floating sealing mechanism of the feeding tray of the dry ice cleaning machine of the present invention;

3 is a perspective view of the piston assembly of the floating sealing mechanism of the feed tray of the dry ice cleaning machine of the present invention;

4 is an exploded view of the piston assembly of the floating sealing mechanism of the feed tray of the dry ice cleaning machine of the present invention;

5 is a perspective view of the upper support of the floating sealing mechanism of the feeding tray of the dry ice cleaning machine of the present invention;

6 is a perspective view of the lower support of the floating sealing mechanism of the feed tray of the dry ice cleaning machine of the present invention;

7 is a schematic structural diagram of the floating sealing mechanism of the feeding tray of the dry ice cleaning machine of the present invention;

Among them: 1 is the upper support, 2 is the piston assembly, 3 is the air inlet, 4 is the air inlet cavity, 5 is the piston cavity, 6 is the piston, 7 is the sealing spacer, 8 is the feeding plate, and 9 is the lower support , 10 is the air passage, 11 is the dry ice discharge port, 12 is the blanking cavity, 13 is the dry ice discharge port, 14 is the blanking channel, 15 is the first sealing ring, 16 is the positioning pin, 17 is the air vent, 18 is a vent through hole, and 19 is a second sealing ring.

Detailed ways

Referring to FIGS. 1 to 7 , the utility model provides a floating sealing mechanism for the feeding tray of a dry ice cleaning machine, including: an upper support 1 and a piston assembly 2 ; the upper support 1 is provided with an air inlet 3 , and the upper support 1 An intake chamber 4 and a piston chamber 5 are arranged in sequence with the intake port 3. The piston assembly 2 includes a fixedly connected piston 6 and a sealing spacer 7. The piston 6 is slidably installed in the piston chamber 5, and the lower end of the seal spacer 7 corresponds to The external feeding tray 8; when working, the high pressure air at the air inlet 3 pushes the piston 6 downward to abut the lower end surface of the sealing spacer 7 against the feeding tray 8, and then push the feeding tray 8 against the external lower support 9, so as to realize the sealing of the two side end faces of the feeding tray 8 in the working state. In this embodiment, the connection mode of the floating piston is adopted. After the air inlet 3 and the air inlet cavity 4 are ventilated, the piston 6 moves downward, The sealing disc 7 will be pressed down, so that the sealing disc 7 will push the feeding disc 8 downward, and the sealing disc 7, the feeding disc 8 and the lower support 9 will be sealed together. The larger the pressure, the greater the pressure on the piston 6, the sealing spacer 7, the feeding disk 8 and the lower support 9, which is proportional to the whole. During the ventilation operation, the sealing spacer 7 and the upper support 1 and The sealing between the lower supports 9 can effectively prevent the occurrence of air leakage.

Referring to FIGS. 3 , 4 and 7 , the piston 6 and the sealing spacer 7 are correspondingly provided with an air passage 10 communicating with the air inlet chamber 4 , and the air passage 10 communicates with the dry ice outlet 11 on the lower support 9 .

Referring to FIGS. 3 to 5 , a discharge channel 14 corresponding to the dry ice discharge port 13 of the upper support 1 is provided on the sealing spacer 7 .

Referring to FIG. 7 , the air passage 10 and the unloading passage 14 correspond to the blanking cavity 12 on the feeding tray 8 respectively. During operation, the high-pressure gas at the air inlet 3 passes through the air passage 10 to displace the material in the blanking cavity 12 . The dry ice is pushed to the dry ice discharge port 11; in the working state, the piston 6 and the sealing disc 7 are pressed down, and the sealing contact with the feeding disc 8 and the lower support 9 makes the upper and lower sides of the feeding disc 8 in a pressurized and sealed state, preventing The high-pressure air at the air inlet 3 and the air passage 10 leaks, and the piston 6 can slide up and down in the piston cavity 5. Therefore, the greater the pressure on the piston 6, the pressure acting on the feeding plate 8 and the lower support 9. The larger the size is, the two are in a proportional relationship, so that the blanking cavity 12 of the feeding tray 8 can ensure a good sealing effect during operation, and the high-pressure gas can only be passed from the gas passage 10 to the dry ice discharge port 11. Thereby, the dry ice in the blanking chamber 12 is pushed to the dry ice discharge material 11 to realize the spraying of the dry ice.

Referring to FIG. 4 and FIG. 7 , a first sealing ring 15 is installed between the piston 6 and the sealing spacer 7 , and the piston 6 is positioned and installed on the sealing spacer 7 through a positioning pin 16 .

Referring to FIG. 3 and FIG. 4 , a vent through hole 18 corresponding to the vent port 17 of the upper support 1 is provided on the sealing diaphragm 7 .

Referring to FIG. 3 , FIG. 4 and FIG. 7 , a plurality of second sealing rings 19 are installed on the outside of the piston 6 .

This embodiment is a floating sealing mechanism for the feeding tray of a dry ice cleaning machine. The piston and the sealing spacer can slide in the piston cavity in the upper support. After the high-pressure gas is connected, the sealing spacer can seal against the feeding tray and the lower spacer. There is no problem of gas leakage when the high-pressure gas passes through the blanking cavity of the feeding tray; at the same time, the higher the high-pressure pressure connected to the feeder, the better the sealing effect. The greater the pressure on the spacer, the greater the adhesion force between the feeding disc and the upper and lower supports; the piston can slide in the piston cavity, and the feeding disc will not be stuck when the feeding disc rotates. Between the upper support and the lower support, the frictional force generated by the rotation of the feeding disc is not increased.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the technical principles of the present invention, several improvements and modifications can be made. These improvements and retouching should also be regarded as the protection scope of the present invention.

Claims (7)

1. The utility model provides a dry ice cleaning machine feed table sealing mechanism that floats which characterized in that includes: an upper support (1) and a piston assembly (2); the piston assembly is characterized in that an air inlet (3) is formed in the upper support (1), an air inlet cavity (4) and a piston cavity (5) which are communicated with the air inlet (3) are sequentially arranged in the upper support (1), the piston assembly (2) comprises a piston (6) and a sealing separation disc (7) which are fixedly connected, the piston (6) is slidably arranged in the piston cavity (5), and the lower end of the sealing separation disc (7) corresponds to an external feeding disc (8); when the device works, the high-pressure air at the air inlet (3) pushes the piston (6) to downwards enable the lower end face of the sealing partition disc (7) to abut against the feeding disc (8), and then the feeding disc (8) is pushed to abut against an external lower support (9).

2. A dry ice cleaning machine feed tray floating sealing mechanism as claimed in claim 1, characterized in that the piston (6) and the sealing separation disc (7) are correspondingly provided with a gas passing channel (10) communicated with the gas inlet cavity (4), and the gas passing channel (10) is communicated with a dry ice discharge hole (11) on the lower support (9).

3. A dry ice cleaning machine feed tray floating seal mechanism as claimed in claim 2, characterized in that the seal partition tray (7) is provided with a feed channel (14) corresponding to the dry ice feed opening (13) of the upper support (1).

4. A dry ice cleaning machine feed tray floating sealing mechanism as claimed in claim 3, characterized in that the air passing channel (10) and the blanking channel (14) correspond to a blanking cavity (12) on the feed tray (8), respectively, and during operation, the high-pressure air at the air inlet (3) passes through the air passing channel (10) to push the dry ice in the blanking cavity (12) to the dry ice discharge port (11).

5. A dry ice cleaning machine feed tray floating seal mechanism according to claim 1, characterized in that a first seal ring (15) is installed between the piston (6) and the seal separation disc (7), and the piston (6) is positioned and installed on the seal separation disc (7) through a positioning pin (16).

6. A dry ice cleaning machine feed tray floating seal mechanism according to claim 1, characterized in that the seal spacer disc (7) is provided with a venting through hole (18) corresponding to the venting opening (17) of the upper support (1).

7. A dry ice cleaning machine feed tray floating seal mechanism as claimed in claim 1, characterized in that a plurality of second sealing rings (19) are mounted on the outside of the piston (6).

Images