CN214394894U

CN214394894U - Automatic feeding mechanism for plastic concave pad production process

Info

Publication number: CN214394894U
Application number: CN202120592910.9U
Authority: CN
Inventors: 朱啟兵; 曹雄
Original assignee: Suzhou Aixun Precision Hardware Accessories Co ltd
Current assignee: Suzhou Aixun Intelligent Manufacturing Technology Co.,Ltd.
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2021-10-15
Anticipated expiration: 2031-03-24

Abstract

The utility model discloses an automatic feed mechanism is used to plastics concave pad production technology, the on-line screen storage device comprises a base, four corners difference fixedly connected with landing legs of base bottom. This automatic feed mechanism for plastics concave pad production technology is through utilizing the feeder tube to finish the user equipment after with the inside raw materials of inner room complete discharge, open the insulation construction of shell bottom back, in the wiper mechanism that shell opposite side top set up, the water pump starts the raceway and takes out the washing water in the water storage tank and carry to the aqua storage tank on the inside both sides top of inner room in, fixed connection's communicating pipe is linked together the inside of both sides aqua storage tank between the aqua storage tank one end, the washing water in the aqua storage tank of one side is transmitted to the aqua storage tank of opposite side through communicating pipe in, the inner room inner wall is washd including the equidistant annular distribution's of aqua storage tank one side multiunit shower nozzle blowout, the water is discharged from the waste discharge mouth of inner room bottom after the washing.

Description

Automatic feeding mechanism for plastic concave pad production process

Technical Field

The utility model relates to an injection moulding device technical field specifically is a plastics concave pad automatic feed mechanism for production technology.

Background

The plastic is a solid form which takes high molecular substances as main raw materials and is processed into different shapes through a manual machine processing mode according to use requirements, is different from rubber and fiber, and the plastic gasket as a solid plastic product has various types such as a plastic concave pad, a plastic convex pad and the like, the production process of some plastic concave pads adopts an injection molding process, namely, the raw materials are melted and then injected into a small hole through a feeding mechanism and then flow into a mold to form the raw materials into a gasket, however, some of the existing automatic feeding mechanisms for the production process of plastic concave pads still have some defects and defects that the interior of the automatic feeding mechanisms is inconvenient to clean and clean in time after being used and a large amount of harmful odor gas generated in the raw material treatment process cannot be treated in time, and the like, and need to be improved.

In the process of implementing the present invention, the inventor finds that at least the following problems exist in the prior art and are not solved:

(1) the automatic feeding mechanism for the traditional plastic concave pad production process is inconvenient to clean and clean the interior in time after being used;

(2) when the automatic feeding mechanism for the traditional plastic concave pad production process is used, no external heat preservation measure in the heating process is provided for the external part of the heating equipment for treating the raw materials, and the quick heat dissipation can cause certain influence on the treatment of the raw materials;

(3) the automatic feeding mechanism for the traditional plastic concave pad production process can generate a large amount of harmful odor gas in the process of treating raw materials in the using process and cannot treat the odor gas in time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plastics are concave fills up automatic feed mechanism for production technology to provide the problem that is not convenient for carry out timely washing clearance to inside in solving above-mentioned background.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic feeding mechanism for a plastic concave pad production process comprises a base, wherein four corners of the bottom end of the base are respectively and fixedly connected with supporting legs, the inside of the base is vertically and fixedly connected with a shell, the inside of the shell is fixedly connected with an inner chamber, a heat insulation structure is arranged between the shell and the inner chamber, one side of the top end of the shell is fixedly connected with a feeding port, the feeding port penetrates through one side of the top end of the shell and is communicated with the inside of the inner chamber, a driving motor is fixedly connected with the middle position of the top end of the shell, a stirring shaft is vertically and movably connected with the top end of the inner chamber, an output shaft of the driving motor is fixedly connected with the top end of the stirring shaft through a coupling, a support is transversely and fixedly connected between the bottom ends of two sides of the inside of the inner chamber, the bottom end of the stirring shaft is movably connected with the middle position of the top end of the support, and the top end of one side of the shell is provided with a purification mechanism, a delivery pump is fixedly connected to one side of the shell, a pumping pipe is fixedly connected to one side of the delivery pump, one side of the pumping pipe penetrates through one sides of the shell and the inner chamber and extends to the middle position of the bottom end of the inner chamber, a feeding pipe is fixedly connected to the other side of the delivery pump, heaters are fixedly connected to two sides of the bottom end of the inner chamber respectively, a waste discharge port is fixedly connected to the bottom end of the shell, the top end of the waste discharge port penetrates through the bottom end of the shell and is communicated with the inner chamber, and a cleaning mechanism is arranged at the top end of the other side of the shell;

the cleaning mechanism comprises a water storage tank, the water storage tank is fixedly connected to the top end of the other side of the shell, a water delivery pipe is fixedly connected to one side of the top end of the water storage tank, a water pump is arranged on the water delivery pipe, water storage tanks are fixedly connected to the top ends of the two sides of the inner portion of the inner chamber respectively, a nozzle is fixedly connected to one side of each water storage tank, and a communicating pipe is fixedly connected between one ends of the water storage tanks.

Preferably, one side of the water conveying pipe penetrates through one side of the top end of the water storage tank and extends to one side of the bottom end inside the water storage tank, the other side of the water conveying pipe penetrates through the shell and one side of the inner chamber and is communicated with the inside of the water storage tank, a communicating pipe is transversely and fixedly connected between one ends of the water storage tanks, and a plurality of groups of nozzles are respectively annularly arranged on one side of the water storage tank at equal intervals.

Preferably, the heat preservation structure comprises an outer cover, support blocks, an outer layer, heat preservation cotton and an inner layer, the outer cover is fixedly connected between the outer cover and the inner chamber, the inner layer is fixedly connected to one side of the inner portion of the outer cover, the outer layer is fixedly connected to the other side of the inner portion of the outer cover, multiple groups of support blocks are fixedly connected between the outer layer and the inner layer respectively, and the heat preservation cotton is arranged between the outer layer and the inner layer respectively.

Preferably, the supporting blocks are fixedly connected with a plurality of groups between the outer layer and the inner layer, and the inner layer and the outer layer are symmetrically distributed around the vertical center line of the shell.

Preferably, purification mechanism comprises gas vent, mount, slider, suction inlet, connecting tube, grudging post, active carbon filter core, mount pad, clean room and negative-pressure air fan, the vertical fixed connection in the top of shell one side of grudging post, the top and the bottom of grudging post one side are fixedly connected with mount respectively, vertical fixedly connected with clean room between the mount, the top fixedly connected with gas vent of clean room, the inside top fixedly connected with negative-pressure air fan of clean room, the intermediate position department difference fixedly connected with mount pad of clean room inside both sides, the inside intermediate position department of clean room is provided with active carbon filter core, and the both sides difference fixedly connected with slider of active carbon filter core, the bottom fixedly connected with connecting tube of clean room, suction inlet fixed connection is in one side on the inside top of interior.

Preferably, one side of the connection pipe penetrates through the housing and one side of the top end of the inner chamber and is communicated with the inside of the suction port, and the other side of the connection pipe is communicated with the inside of the purification chamber.

Preferably, the inside of mount pad sets up respectively with the spout, the external dimension of slider is less than the internal dimension of spout, constitute sliding structure between slider and the mount pad respectively.

Compared with the prior art, the beneficial effects of the utility model are that: the automatic feeding mechanism for the plastic concave pad production process not only realizes that the inside of the plastic concave pad is convenient to clean in time after the plastic concave pad is used, realizes external heat preservation in the external heating process of raw material heating treatment equipment, but also realizes timely treatment of a large amount of harmful peculiar smell gas generated in the raw material treatment process;

(1) when the equipment is finished after all raw materials in the inner chamber are discharged by using the feeding pipe, after the heat preservation structure at the bottom end of the shell is opened, in the cleaning mechanism arranged at the top end of the other side of the shell, the water pump is started to pump out cleaning water in the water storage tank through the water pipe and convey the cleaning water to the water storage tanks at the top ends of the two sides in the inner chamber, the inside of the water storage tanks at the two sides are communicated through the communicating pipe fixedly connected between one ends of the water storage tanks, the cleaning water in the water storage tank at one side is conveyed to the water storage tank at the other side through the communicating pipe, and finally the cleaning water is sprayed out from the two sides of the inner wall of the inner chamber through a plurality of groups of nozzles which are distributed at equal intervals and annularly and arranged at one side of the water storage tanks to clean the inside, and the cleaned water is discharged from a waste discharge port at the bottom of the inner chamber, so that the purpose of cleaning and cleaning the inside of the inner chamber can be conveniently and cleaned in time after the use is finished is achieved;

(2) in the processing process of melting and stirring the raw materials, the heater inside the inner chamber heats the inner chamber so as to facilitate the melting of the raw materials inside the inner chamber, in the heat insulation structure arranged between the outside of the inner chamber and the inside of the shell, the heat insulation cotton arranged between the inner layer at one side and the outer layer at the other side inside the outer cover can integrally insulate the outside of the inner chamber in the heating process, the heat loss is reduced, so that the heating and melting speed of the internal raw materials is higher, meanwhile, a plurality of groups of supporting blocks fixed at equal intervals between the outer layer and the inner layer can support and fix the inside and the whole structure, and also can play a certain protection role on the outside of the inner chamber, thereby achieving the purpose of insulating the outside in the external heating process of the raw material heating processing equipment;

(3) in the process of manufacturing raw materials for producing the plastic concave pad, a large amount of harmful peculiar smell gas can be generated in the process of melting and stirring the plastic raw materials in the inner chamber, most of the traditional raw materials are directly discharged without being processed or slightly processed, great harm can be caused to the surrounding environment and the human health, in the purification mechanism arranged at the top end of one side of the shell, a negative pressure fan is turned on simultaneously in the process of heating and melting the raw materials, the negative pressure fan is started to pass through a connecting pipeline at the bottom end of the purification chamber and a suction port at one side of the top end in the inner chamber, the large amount of harmful peculiar smell gas generated in the melting and stirring process is pumped into the purification chamber through the connecting pipeline, the harmful gas is adsorbed and filtered by an active carbon filter element in the purification chamber and then is discharged into the air from an exhaust port at the top end of the purification chamber through the negative pressure fan, meanwhile, the internal activated carbon filter element needs to be replaced periodically after being used for a period of time, the purification chamber is opened, and then the activated carbon filter element is pulled to slide out from the inside of the mounting seat by utilizing the sliding blocks on the two sides to be replaced, so that the aim of timely treating a large amount of harmful odor generated in the raw material treatment process is fulfilled.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

FIG. 2 is an enlarged front view of a partial section of the cleaning mechanism of the present invention;

FIG. 3 is an enlarged schematic view of the top view of a partial section of the cleaning mechanism of the present invention;

fig. 4 is an enlarged partial cross-sectional view of the utility model at a in fig. 1;

fig. 5 is a schematic view of the front-view enlarged partial section structure of the purification mechanism of the present invention.

In the figure: 1. a support leg; 2. a support; 3. a base; 4. a housing; 5. a heat preservation structure; 501. a housing; 502. a support block; 503. an outer layer; 504. heat preservation cotton; 505. an inner layer; 6. a feeding port; 7. a drive motor; 8. a stirring shaft; 9. a purification mechanism; 901. an exhaust port; 902. a fixed mount; 903. a slider; 904. a suction port; 905. connecting a pipeline; 906. erecting a frame; 907. an activated carbon filter element; 908. a mounting seat; 909. a clean room; 910. a negative pressure fan; 10. a feed pipe; 11. a delivery pump; 12. a material pumping pipe; 13. a heater; 14. an inner chamber; 15. a waste discharge port; 16. a water delivery pipe; 17. a water storage tank; 18. a water pump; 19. a water storage tank; 20. a communicating pipe; 21. and (4) a spray head.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: referring to fig. 1-5, an automatic feeding mechanism for a plastic concave pad production process comprises a base 3, four corners of the bottom end of the base 3 are fixedly connected with supporting legs 1 respectively, the inside of the base 3 is vertically and fixedly connected with a shell 4, the inside of the shell 4 is fixedly connected with an inner chamber 14, a heat insulation structure 5 is arranged between the shell 4 and the inner chamber 14, one side of the top end of the shell 4 is fixedly connected with a feeding port 6, the feeding port 6 penetrates through one side of the top end of the shell 4 and is communicated with the inside of the inner chamber 14, a driving motor 7 is fixedly connected at the middle position of the top end of the shell 4, a stirring shaft 8 is vertically and movably connected at the top end of the inside of the inner chamber 14, an output shaft of the driving motor 7 is fixedly connected with the top end of the stirring shaft 8 through a coupler, a support 2 is transversely and fixedly connected between the bottom ends of two sides of the inside of the inner chamber 14, and the bottom end of the stirring shaft 8 is movably connected with the middle position of the top end of the support 2, the top end of one side of the shell 4 is provided with a purification mechanism 9, one side of the shell 4 is fixedly connected with a delivery pump 11, one side of the delivery pump 11 is fixedly connected with a pumping pipe 12, one side of the pumping pipe 12 penetrates through one sides of the shell 4 and the inner chamber 14 and extends to the middle position of the inner bottom end of the inner chamber 14, the other side of the delivery pump 11 is fixedly connected with a feeding pipe 10, two sides of the inner bottom end of the inner chamber 14 are respectively and fixedly connected with heaters 13, the bottom end of the shell 4 is fixedly connected with a waste discharge port 15, the top end of the waste discharge port 15 penetrates through the bottom end of the shell 4 and is communicated with the inner part of the inner chamber 14, and the top end of the other side of the shell 4 is provided with a cleaning mechanism;

referring to fig. 1-5, the automatic feeding mechanism for the plastic concave pad production process further comprises a cleaning mechanism, the cleaning mechanism comprises a water storage tank 17, the water storage tank 17 is fixedly connected to the top end of the other side of the shell 4, one side of the top end of the water storage tank 17 is fixedly connected with a water delivery pipe 16, a water pump 18 is arranged on the water delivery pipe 16, the top ends of the two sides inside the inner chamber 14 are respectively and fixedly connected with a water storage tank 19, one side of the water storage tank 19 is fixedly connected with a spray head 21, and a communicating pipe 20 is fixedly connected between one ends of the water storage tanks 19;

one side of the water delivery pipe 16 penetrates through one side of the top end of the water storage tank 17 and extends to one side of the bottom end inside the water storage tank 17, the other side of the water delivery pipe 16 penetrates through the shell 4 and one side of the inner chamber 14 and is communicated with the inside of the water storage tank 19, a communicating pipe 20 is transversely and fixedly connected between one ends of the water storage tanks 19, and a plurality of groups of nozzles 21 are respectively annularly arranged on one side of the water storage tank 19 at equal intervals;

specifically, as shown in fig. 1, 2 and 3, when the raw materials in the inner chamber 14 are completely discharged by the feeding pipe 10 and the use of the equipment is finished, after the heat preservation structure 5 at the bottom end of the housing 4 is opened, in the cleaning mechanism arranged at the top end of the other side of the housing 4, by turning on the switch of the water pump 18, the water pump 18 is started to pump out the cleaning water in the water storage tank 17 through the water pipe 16 and convey the cleaning water to the water storage tanks 19 at the top ends of the two sides in the inner chamber 14, the communicating pipe 20 fixedly connected between one ends of the water storage tanks 19 communicates the interiors of the water storage tanks 19 at the two sides, the cleaning water in the water storage tank 19 at one side is conveyed to the water storage tank 19 at the other side through the communicating pipe 20, and finally the cleaning water is sprayed out from the two sides of the inner wall of the inner chamber 14 through the plurality of spray heads 21 which are annularly distributed at the same interval at one side of the water storage tank 19 to clean the inside, and the cleaned water is discharged from the waste discharge port 15 at the bottom of the inner chamber 14, the purpose of cleaning the inside conveniently and timely after the use is finished is achieved.

Example 2: the heat insulation structure 5 consists of an outer cover 501, supporting blocks 502, an outer layer 503, heat insulation cotton 504 and an inner layer 505, wherein the outer cover 501 is fixedly connected between the shell 4 and the inner chamber 14, one side inside the outer cover 501 is fixedly connected with the inner layer 505, the other side inside the outer cover 501 is fixedly connected with the outer layer 503, a plurality of groups of supporting blocks 502 are respectively fixedly connected between the outer layer 503 and the inner layer 505, and the heat insulation cotton 504 is respectively arranged between the outer layer 503 and the inner layer 505;

a plurality of groups of supporting blocks 502 are fixedly connected between the outer layer 503 and the inner layer 505, and the inner layer 505 and the outer layer 503 are symmetrically distributed around the vertical center line of the shell 4;

specifically, as shown in fig. 1 and 4, during the process of melting and stirring the raw material, the heater 13 inside the inner chamber 14 heats the inside of the inner chamber 14 to facilitate the melting process of the raw material inside the inner chamber 14, in the heat preservation structure 5 arranged between the outside of the inner chamber 14 and the inside of the outer shell 4, the heat preservation cotton 504 arranged between the inner layer 505 at one side and the outer layer 503 at the other side in the outer cover 501 can carry out integral heat preservation on the outside of the inner chamber 14 in the heating process, reduce the heat loss and lead the speed of heating and melting the inner raw materials to be faster, meanwhile, a plurality of groups of supporting blocks 502 fixed at equal intervals between the outer layer 503 and the inner layer 505 support and fix the interior and the whole structure, and also play a certain protection role for the exterior of the inner chamber 14, so that the purpose of heat preservation for the exterior of the raw material heating treatment equipment in the external heating process is achieved.

Example 3: the purification mechanism 9 is composed of an exhaust port 901, a fixed frame 902, a sliding block 903, a suction port 904, a connecting pipeline 905, a vertical frame 906, an activated carbon filter element 907, a mounting seat 908, a purification chamber 909 and a negative pressure fan 910, wherein the vertical frame 906 is vertically and fixedly connected to the top end of one side of the shell 4, the top end and the bottom end of one side of the vertical frame 906 are respectively and fixedly connected with the fixed frame 902, the purification chamber 909 is vertically and fixedly connected between the fixed frames 902, the exhaust port 901 is fixedly connected to the top end of the purification chamber 909, the negative pressure fan 910 is fixedly connected to the top end inside the purification chamber 909, the mounting seat 908 is respectively and fixedly connected to the middle positions of two sides inside the purification chamber 909, the activated carbon filter element 907 is arranged at the middle position inside the purification chamber 909, the two sides of the active carbon filter element 907 are respectively fixedly connected with a slide block 903, the bottom end of the purification chamber 909 is fixedly connected with a connecting pipeline 905, and the suction port 904 is fixedly connected to one side of the top end inside the inner chamber 14;

one side of a connection pipe 905 penetrates the housing 4 and one side of the top end of the inner chamber 14 and communicates with the inside of the suction port 904, and the other side of the connection pipe 905 communicates with the inside of the clean room 909;

the inner part of the mounting seat 908 is respectively provided with a sliding groove, the outer dimension of the sliding block 903 is smaller than the inner dimension of the sliding groove, and a sliding structure is respectively formed between the sliding block 903 and the mounting seat 908;

specifically, as shown in fig. 1 and 5, in the process of manufacturing the raw material for producing the plastic concave pad, a large amount of harmful odor gas is generated in the process of melting and stirring the plastic raw material in the inner chamber 14, most of the conventional methods directly discharge without treatment or slight treatment, which causes great harm to the surrounding environment and human health, in the purification mechanism 9 arranged at the top end of the side of the housing 4, the negative pressure fan 910 is turned on simultaneously in the process of heating and melting the raw material, the negative pressure fan 910 starts the connection pipeline 905 at the bottom end of the purification chamber 909 and the suction port 904 at the top end side of the inner chamber 14, a large amount of harmful odor gas generated in the process of melting and stirring is pumped into the purification chamber 909 through the connection pipeline 905, the harmful gas is adsorbed and filtered by the activated carbon filter 907 in the purification chamber 909, and then is discharged into the air from the exhaust port 901 at the top end of the purification chamber 909 through the negative pressure fan 910, meanwhile, the internal activated carbon filter element 907 needs to be replaced periodically after being used for a period of time, the purification chamber 909 is opened, the activated carbon filter element 907 is pulled to slide out of the mounting seat 908 by the sliding blocks 903 on the two sides and is taken out for replacement, and the purpose of timely treating a large amount of harmful odor generated in the raw material treatment process is achieved.

The working principle is as follows: the utility model discloses when using, with the raw materials through the pan feeding mouth 6 of 4 top one sides of shell top put into the inside back of inner room 14, start driving motor 7 and heater 13, heater 13 heats the internal portion and makes inside raw materials melt to the uniform temperature, heater 13 is at the in-process that heats the internal portion of inner room 14, in the insulation construction 5 that sets up in the internal portion of inner room 14 outside, the cotton 504 that keeps warm that sets up between the inlayer 505 of the internal portion one side of dustcoat 501 and the skin 503 of opposite side can carry out whole heat preservation to the outside of heating in-process inner room 14, it is faster to reduce the thermal speed that scatters and disappears to make the internal portion raw materials heat and melt, driving motor 7 starts the output shaft and drives the (mixing) shaft 8 of the internal portion of inner room 14 through the shaft coupling and constantly stirs the raw materials that make the heating more even with the internal portion of inner room 14, in-process that the stirring melts, can produce the gas of a large amount of harmful peculiar smell, take out the gas of the internal portion's of 14 inside production to the clean room 909 through negative pressure fan 910 among the clean mechanism 9 After the activated carbon filter element 907 adsorbs and filters gas, the gas is discharged from the gas outlet 901, the liquid raw materials after melting and stirring are guided out of the molten liquid raw materials through the feeding pipe 10 by the delivery pump 11 to be automatically fed into a production mold of a plastic concave pad, the raw materials are formed, after the feeding mechanism is used, the interior of the feeding mechanism needs to be cleaned in time, the raw materials are prevented from being solidified inside and difficult to clean, a water pump 18 in the cleaning mechanism is started to pump out cleaning water in the water storage tank 17, the cleaning water is sprayed out of the annular interior of the inner chamber 14 through a plurality of groups of spray nozzles 21 to clean waste materials in time, and the waste materials are discharged from the waste discharge port 15.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a plastics concave pad automatic feed mechanism for production technology, includes base (3), its characterized in that: the four corners of the bottom end of the base (3) are fixedly connected with supporting legs (1) respectively, the vertical inside of the base (3) is fixedly connected with a shell (4), the inside of the shell (4) is fixedly connected with an inner chamber (14), a heat insulation structure (5) is arranged between the shell (4) and the inner chamber (14), one side of the top end of the shell (4) is fixedly connected with a feeding port (6), the feeding port (6) penetrates through one side of the top end of the shell (4) and is communicated with the inside of the inner chamber (14), a driving motor (7) is fixedly connected with the middle position of the top end of the shell (4), the vertical top end of the inside of the inner chamber (14) is movably connected with a stirring shaft (8), an output shaft of the driving motor (7) is fixedly connected with the top end of the stirring shaft (8) through a coupler, and a support (2) is transversely and fixedly connected between the bottom ends of the two sides of the inside of the inner chamber (14), the bottom end of the stirring shaft (8) is movably connected with the middle position of the top end of the bracket (2), a purifying mechanism (9) is arranged at the top end of one side of the shell (4), a conveying pump (11) is fixedly connected to one side of the shell (4), a material pumping pipe (12) is fixedly connected to one side of the conveying pump (11), one side of the material pumping pipe (12) penetrates through the shell (4) and one side of the inner chamber (14) and extends to the middle position of the inner bottom end of the inner chamber (14), the other side of the delivery pump (11) is fixedly connected with a feeding pipe (10), two sides of the bottom end in the inner chamber (14) are respectively and fixedly connected with a heater (13), the bottom end of the shell (4) is fixedly connected with a waste discharge port (15), the top end of the waste discharge port (15) penetrates through the bottom end of the shell (4) and is communicated with the interior of the inner chamber (14), and a cleaning mechanism is arranged at the top end of the other side of the shell (4);

the cleaning mechanism comprises a water storage tank (17), the water storage tank (17) is fixedly connected to the top end of the other side of the shell (4), a water conveying pipe (16) is fixedly connected to one side of the top end of the water storage tank (17), a water pump (18) is arranged on the water conveying pipe (16), water storage tanks (19) are fixedly connected to the top ends of two sides inside the inner chamber (14) respectively, nozzles (21) are fixedly connected to one side of each water storage tank (19), and communicating pipes (20) are fixedly connected between one ends of the water storage tanks (19).

2. The automatic feeding mechanism for the production process of the plastic concave pad as claimed in claim 1, wherein: one side of the water conveying pipe (16) penetrates through one side of the top end of the water storage tank (17) and extends to one side of the bottom end inside the water storage tank (17), the other side of the water conveying pipe (16) penetrates through one side of the shell (4) and one side of the inner chamber (14) and is communicated with the inside of the water storage tank (19), communicating pipes (20) are transversely and fixedly connected between one ends of the water storage tank (19), and multiple groups of spray heads (21) are respectively annularly arranged on one side of the water storage tank (19) at equal intervals.

3. The automatic feeding mechanism for the production process of the plastic concave pad as claimed in claim 1, wherein: the heat preservation structure (5) comprises an outer cover (501), supporting blocks (502), an outer layer (503), heat preservation cotton (504) and an inner layer (505), wherein the outer cover (501) is fixedly connected between the shell (4) and the inner chamber (14), the inner layer (505) is fixedly connected to one side of the inner part of the outer cover (501), the outer layer (503) is fixedly connected to the other side of the inner part of the outer cover (501), multiple groups of supporting blocks (502) are respectively fixedly connected between the outer layer (503) and the inner layer (505), and the heat preservation cotton (504) are respectively arranged between the outer layer (503) and the inner layer (505).

4. The automatic feeding mechanism for the production process of the plastic concave pad as claimed in claim 3, wherein: the supporting blocks (502) are fixedly connected with a plurality of groups between the outer layer (503) and the inner layer (505), and the inner layer (505) and the outer layer (503) are symmetrically distributed around the vertical center line of the shell (4).

5. The automatic feeding mechanism for the production process of the plastic concave pad as claimed in claim 1, wherein: the purification mechanism (9) comprises an exhaust port (901), a fixed frame (902), a sliding block (903), a suction port (904), a connecting pipeline (905), a vertical frame (906), an activated carbon filter element (907), a mounting seat (908), a purification chamber (909) and a negative pressure fan (910), wherein the vertical frame (906) is vertically and fixedly connected with the top end of one side of the shell (4), the top end and the bottom end of one side of the vertical frame (906) are respectively and fixedly connected with the fixed frame (902), the purification chamber (909) is vertically and fixedly connected between the fixed frames (902), the top end of the purification chamber (909) is fixedly connected with the exhaust port (901), the top end of the interior of the purification chamber (909) is fixedly connected with the negative pressure fan (910), the middle positions of two sides of the interior of the purification chamber (909) are respectively and fixedly connected with the mounting seat (908), and the middle position of the interior of the purification chamber (909) is provided with the activated carbon filter element (907), and the two sides of the active carbon filter element (907) are respectively and fixedly connected with a sliding block (903), the bottom end of the purification chamber (909) is fixedly connected with a connecting pipeline (905), and the suction port (904) is fixedly connected to one side of the top end in the inner chamber (14).

6. The automatic feeding mechanism for the production process of the plastic concave pad as claimed in claim 5, wherein: one side of the connecting pipe (905) penetrates through the shell (4) and one side of the top end of the inner chamber (14) and is communicated with the interior of the suction port (904), and the other side of the connecting pipe (905) is communicated with the interior of the purification chamber (909).

7. The automatic feeding mechanism for the production process of the plastic concave pad as claimed in claim 5, wherein: the inner part of the mounting seat (908) is respectively provided with a sliding groove, the outer dimension of the sliding block (903) is smaller than the inner dimension of the sliding groove, and a sliding structure is respectively formed between the sliding block (903) and the mounting seat (908).