Negative pressure equipment for ASA synthetic resin production

Abstract

The utility model discloses negative pressure equipment for ASA synthetic resin production, which comprises a feeding hopper and a material guide branch pipe, negative pressure material pumping tanks are uniformly welded at the top end in the feeding hopper, and the bottom of each negative pressure material pumping tank is movably connected with a bottom cover plate. By installing the protective cover body and the like, when the device runs, on one hand, the air guide pipe is welded on the protective cover body, and the bottom of the air guide pipe is in threaded connection with the filter screen groove, so that filtering anti-blocking protection can be carried out on the negative pressure air exhaust mechanism, and materials are prevented from flowing back to enter the negative pressure air exhaust mechanism to cause pollution and blockage; on the other hand, a micro static electricity removing ion fan is installed in the protective cover body on one side of the filter screen groove through screws, and the micro static electricity removing ion fan blows air with ions downwards in an inclined mode, so that the static electricity influence caused by air exhaust or feeding in the negative-pressure material pumping tank can be effectively neutralized; and materials attached to the outer wall of the filter screen groove can be blown to be stripped.

Description

Technical Field

[0001] The utility model relates to the technical field of ASA synthetic resin production equipment, in particular to negative pressure equipment for ASA synthetic resin production. Background Art

[0002] ASA synthetic resin is widely used in the automotive, horticultural, electrical and electronic, and construction fields. It has good mechanical and physical properties, weather resistance, high temperature resistance, and anti-static effects. When ASA synthetic resin is produced and prepared, it is often necessary to use negative pressure equipment to feed the material in the form of negative pressure. However, this type of negative pressure equipment for ASA synthetic resin production still has some defects during actual operation.

[0003] As disclosed in the application No. 202322052359.0, a negative pressure device for ASA synthetic resin production relates to the technical field related to ASA synthetic resin production. The utility model includes a first negative pressure mechanism and a second negative pressure mechanism, wherein the first negative pressure mechanism and the second negative pressure mechanism have the same structural arrangement, the first negative pressure mechanism includes a hydraulic pusher and a negative pressure feed pipe, the hydraulic pusher is fixedly connected to one end of the negative pressure feed pipe, and the machine shaft penetrates into the interior of the negative pressure feed pipe and is fixedly connected to a piston rod slidably connected to the interior of the negative pressure feed pipe, and an output pipe is arranged on the side of the negative pressure feed pipe close to the hydraulic pusher. An input pipe is arranged on the side of the negative pressure feed pipe at a relative position to the axial direction of the output pipe, and a pressure-stabilizing valve is fixedly connected to the side of the negative pressure feed pipe at the opposite end of the hydraulic pusher. The utility model solves the problems of low feeding efficiency and maintenance affecting production of negative pressure equipment used in ASA synthetic resin production through the first negative pressure mechanism and the second negative pressure mechanism; however, during its actual operation, static electricity may exist inside the feeding tank due to the vacuum or material extraction operation, which may cause great harm, affect the feeding effect and cause damage to the device. Moreover, it is not easy to regulate the feeding amount and realize the quantitative feeding function, which leads to low functionality of the device. Utility Model Content

[0004] The purpose of the utility model is to provide a negative pressure device for producing ASA synthetic resin to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a negative pressure equipment for ASA synthetic resin production, comprising an upper hopper and a material guide branch pipe, the top of the upper hopper is evenly welded with a negative pressure extraction tank, the bottom of the negative pressure extraction tank is movably connected with a bottom cover plate, the bottom end of the negative pressure extraction tank is welded with a fixing frame, both sides of the fixing frame are equipped with motors connected with the bottom cover plate, a protective cover body is installed on the top of the negative pressure extraction tank, an air guide pipe is welded on the protective cover body, the bottom of the air guide pipe is threadedly connected with a filter mesh slot, a micro-static ion fan is installed inside the protective cover body on one side of the filter mesh slot by screws, one end of the air guide pipe is connected with an organic shell and an air pump, a pressure gauge matching the air pump is installed on the air guide pipe, the material guide branch pipe is welded to the negative pressure extraction tank, a feed main pipe is welded between adjacent material guide branch pipes, and solenoid valves are installed on the feed main pipe and the air guide pipe.

[0006] Preferably, a second hollow mounting plate is welded on both the protective cover body and the negative pressure pumping tank, and screws are evenly arranged between adjacent second hollow mounting plates to facilitate disassembly and assembly of the protective cover body and the negative pressure pumping tank through the second hollow mounting plates.

[0007] Preferably, the input end of the vacuum pump is provided with an exhaust pipe welded to the casing, and the exhaust pipe and the air guide pipe are both welded with a first hollow mounting plate, and screws are evenly arranged between adjacent first hollow mounting plates to facilitate disassembly and assembly of the exhaust pipe and the air guide pipe through the first hollow mounting plate.

[0008] Preferably, the air pump is installed inside the casing by screws, and a rubber buffer pad is provided between the air pump and the casing.

[0009] Preferably, an air venting pipe is provided at the output end of the air pump, and an internal threaded connection layer is provided inside the end of the air venting pipe away from the casing.

[0010] Preferably, a vibration motor is installed at the bottom of one side of the upper hopper and the negative pressure pumping tank, so as to improve the material discharge effect of the upper hopper and the negative pressure pumping tank, reduce material adhesion, and avoid blockage.

[0011] Preferably, two of the material guide branch pipes and two of the negative pressure extraction tanks are provided, and a flange is welded on the side of the material feed main pipe away from the material guide branch pipe.

[0012] Preferably, the bottom cover is provided with a silicone rubber sealing layer that matches the bottom opening of the negative pressure pumping tank, so that the sealing performance of the bottom cover and the negative pressure pumping tank is improved when they are closed.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The negative pressure equipment for the production of ASA synthetic resin optimizes its own performance by installing a negative pressure extraction tank, etc., and by installing two sets of negative pressure feeding mechanisms composed of a casing, a negative pressure extraction tank and an air pump connected to a feeding hopper on the device, the device can realize a rotational negative pressure feeding operation by controlling the air pumps corresponding to the two sets of negative pressure extraction tanks through an external control device, thereby solving the problem of easy damage caused by the continuous operation of a single feeding mechanism. During the specific operation, the air pump is started, and the gas inside the negative pressure extraction tank is extracted through the vent pipe, the air extraction pipe and the air guide pipe, and the air pressure monitoring function of the barometer can be used to control the effect of each negative pressure extraction, thereby ensuring that the negative pressure extraction tank is at a preset negative pressure value after each extraction. This negative pressure value can be tested in advance to determine the quality of the material extracted under the negative pressure, thereby ensuring that the amount of material extracted each time is fixed, thereby controlling the feeding quality and enhancing the practicality;

[0015] (2) The negative pressure equipment for the production of ASA synthetic resin is equipped with a protective cover, etc., so that when the device is in operation, on the one hand, an air duct is welded on the protective cover, and a filter mesh groove is threadedly connected to the bottom of the air duct, which can filter and prevent the negative pressure exhaust mechanism from blocking and prevent the material from flowing back into the negative pressure exhaust mechanism to cause pollution and blockage. On the other hand, a micro-static ion fan is screwed inside the protective cover on one side of the filter mesh groove. The micro-static ion fan blows ion-carrying air obliquely downward, which can effectively neutralize the static electricity caused by exhausting or loading inside the negative pressure extraction tank, and can also blow away the material attached to the outer wall of the filter mesh groove;

[0016] (3) The negative pressure equipment for the production of ASA synthetic resin is equipped with a solenoid valve, etc., so that when the device is used, after completing a negative pressure extraction process, the vacuum pump is turned off, the solenoid valve on the air duct is turned off, and the solenoid valve on the feed main pipe is turned on. Under the action of negative pressure, the feed main pipe will draw the raw materials into the corresponding negative pressure extraction tank, and then start the motor at the bottom of the corresponding negative pressure extraction tank to drive the bottom cover to automatically flip, so that the raw materials fall into the upper hopper under the action of gravity, and then the sealed feeding operation is carried out through the discharge port that is seamlessly connected to the bottom of the upper hopper and the corresponding ASA synthetic resin production tank, thereby reducing dust interference and optimizing the feeding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0018] Figure 2 This is a schematic diagram of a partial cross-sectional structure of the housing of the utility model;

[0019] Figure 3 This is a front view structural diagram of the top cover body of the utility model in a disassembled state;

[0020] Figure 4 This is a schematic diagram of the structure of the feed main pipe of the utility model;

[0021] Figure 5 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0022] In the figure: 1. upper hopper; 2. casing; 3. negative pressure extraction tank; 4. feed main pipe; 5. vibration motor; 6. protective cover; 7. exhaust pipe; 8. exhaust pump; 9. exhaust pipe; 10. first hollow mounting plate; 11. air guide pipe; 12. pressure gauge; 13. second hollow mounting plate; 14. filter mesh slot; 15. material guide branch pipe; 16. solenoid valve; 17. flange; 18. motor; 19. fixing bracket; 20. bottom cover; 21. silicone rubber sealing layer; 22. micro anti-static ion fan. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 The utility model provides an embodiment: a negative pressure device for ASA synthetic resin production, comprising an upper hopper 1 and a material guide branch pipe 15, a negative pressure pumping tank 3 is uniformly welded on the top of the upper hopper 1, a bottom cover plate 20 is movably connected to the bottom of the negative pressure pumping tank 3, a fixing frame 19 is welded on the bottom end of the negative pressure pumping tank 3, and motors 18 connected to the bottom cover plate 20 are installed on both sides of the fixing frame 19;

[0025] A protective cover 6 is installed on the top of the negative pressure extraction tank 3, an air guide tube 11 is welded on the protective cover 6, a filter screen slot 14 is threadedly connected to the bottom of the air guide tube 11, and a micro static-eliminating ion fan 22 is installed inside the protective cover 6 on one side of the filter screen slot 14 by screws;

[0026] One end of the air guide pipe 11 is connected to the housing 2 and the air pump 8, and a pressure gauge 12 matching the air pump 8 is installed on the air guide pipe 11. The material guide branch pipe 15 is welded to the negative pressure material extraction tank 3, and a feed main pipe 4 is welded between adjacent material guide branch pipes 15. The feed main pipe 4 and the air guide pipe 11 are both equipped with a solenoid valve 16;

[0027] When in use, by installing two sets of negative pressure feeding mechanisms consisting of a casing 2, a negative pressure extraction tank 3 and an air pump 8 connected to the loading hopper 1 on the device, the device can realize a rotating negative pressure feeding operation by regulating the air pumps 8 corresponding to the two sets of negative pressure extraction tanks 3 through an external control device, thereby solving the problem of easy damage caused by the continuous operation of a single feeding mechanism. During specific operation, the air pump 8 is started, and the gas inside the negative pressure extraction tank 3 is extracted through the air venting pipe 9, the air extraction pipe 7 and the air guide pipe 11, and the air pressure monitoring function of the barometer 12 can be used to regulate the effect of each negative pressure extraction, which ensures that the inside of the negative pressure extraction tank 3 is at a preset negative pressure value after each extraction. This negative pressure value can be tested in advance to determine the quality of the material extracted under the negative pressure, thereby ensuring that the amount of material extracted each time is fixed, thereby regulating the feeding quality and enhancing practicality.

[0028] The protective cover 6 and the negative pressure pumping tank 3 are both welded with a second hollow mounting plate 13, and screws are evenly arranged between adjacent second hollow mounting plates 13, so that it is easy to realize the disassembly and assembly of the protective cover 6 and the negative pressure pumping tank 3 through the second hollow mounting plate 13;

[0029] The input end of the air pump 8 is provided with an air extraction pipe 7 welded to the housing 2, and first hollow mounting plates 10 are welded to the air extraction pipe 7 and the air guide pipe 11, and screws are evenly arranged between adjacent first hollow mounting plates 10, so that the air extraction pipe 7 and the air guide pipe 11 can be easily disassembled and assembled through the first hollow mounting plates 10;

[0030] The vacuum pump 8 is installed inside the housing 2 by screws, and a rubber buffer pad is provided between the vacuum pump 8 and the housing 2;

[0031] The output end of the vacuum pump 8 is provided with a vent pipe 9, and an internal thread connection layer is provided inside the vent pipe 9 at the end away from the housing 2; it is convenient to use the internal thread connection layer provided on the vent pipe 9 away from the housing 2 to threadably connect a discharge pipe of corresponding length, thereby facilitating the adjustment of the exhaust gas discharge end position;

[0032] A vibration motor 5 is installed at the bottom of one side of the upper hopper 1 and the negative pressure pumping tank 3; the vibration of the vibration motor 5 is used to improve the material discharge effect of the upper hopper 1 and the negative pressure pumping tank 3, reduce material adhesion, and avoid blockage;

[0033] There are two guide branch pipes 15 and two negative pressure extraction tanks 3, and a flange 17 is welded on the side of the feed main pipe 4 away from the guide branch pipe 15; it is convenient to use the flange 17 on the feed main pipe 4 to install a feed pipe of appropriate length, so as to facilitate the adjustment of the feed end position according to the raw material storage boxes of different heights;

[0034] The bottom cover plate 20 is provided with a silicone rubber sealing layer 21 which matches the bottom opening of the negative pressure pumping tank 3 , thereby improving the sealing performance when the bottom cover plate 20 and the negative pressure pumping tank 3 are closed.

[0035] When the embodiment of the present application is in use: an external power supply and control device are used, and an internal threaded connection layer arranged inside the exhaust pipe 9 away from one end of the casing 2 is used to facilitate its threaded connection with a discharge pipe of corresponding length, thereby facilitating the adjustment of the exhaust gas discharge end position, and conveniently using the flange 17 on the feed main pipe 4 to install a feed pipe of appropriate length, thereby facilitating the adjustment of the feed end position according to raw material storage boxes of different heights. During actual operation, a negative pressure feeding mechanism consisting of two groups of casings 2, negative pressure extraction tanks 3 and suction pumps 8 connected to the feeding hopper 1 are installed on the device, so that the device can realize the rotational negative pressure feeding operation by controlling the suction pumps 8 corresponding to the two groups of negative pressure extraction tanks 3 through an external control device, thereby solving the problem of the single feeding mechanism being connected. In order to solve the problem of easy damage caused by the continuous operation, during the specific operation, the vacuum pump 8 is started, and the gas inside the negative pressure extraction tank 3 is extracted through the vent pipe 9, the vacuum pipe 7 and the air guide pipe 11, and the air pressure monitoring function of the barometer 12 can be used to adjust the effect of each negative pressure extraction, which ensures that the negative pressure extraction tank 3 is at a preset negative pressure value after each extraction. This negative pressure value can be tested in advance to determine the quality of the material extracted under the negative pressure, so as to ensure that the amount of material extracted each time is fixed, thereby adjusting the feeding quality and enhancing the practicality. After completing a negative pressure extraction process, the vacuum pump 8 is closed, the solenoid valve 16 on the air guide pipe 11 is closed, and the solenoid valve 16 on the feed main pipe 4 is opened. Under the action of negative pressure, the feed main The tube 4 will draw the raw materials into the corresponding negative pressure extraction tank 3, and then start the motor 18 at the bottom of the corresponding negative pressure extraction tank 3 to drive the bottom cover plate 20 to automatically flip, so that the raw materials fall into the upper hopper 1 under the action of gravity, and then the sealed feeding operation is carried out through the discharge port seamlessly connected between the bottom of the upper hopper 1 and the corresponding ASA synthetic resin production tank, thereby reducing the interference of dust. At the same time, on the one hand, an air guide pipe 11 is welded on the protective cover body 6, and a filter mesh groove 14 is threadedly connected at the bottom of the air guide pipe 11, which can filter and prevent blockage of the negative pressure extraction mechanism and prevent the material from flowing back into the negative pressure extraction mechanism to cause pollution and blockage. On the other hand, a screw is installed inside the protective cover body 6 on one side of the filter mesh groove 14. The micro-static ionizing fan 22 can blow ion-carrying wind obliquely downward through the micro-static ionizing fan 22, which can not only effectively neutralize the static electricity caused by exhaust or feeding inside the negative pressure extraction tank 3, but also blow away the material attached to the outer wall of the filter mesh slot 14. Furthermore, on the one hand, a second hollow mounting plate 13 is welded on both the protective cover body 6 and the negative pressure extraction tank 3, which facilitates the disassembly and assembly of the protective cover body 6 and the negative pressure extraction tank 3 through the second hollow mounting plate 13. On the other hand, an exhaust pipe 7 welded to the casing 2 is provided at the input end of the exhaust pump 8, and a first hollow mounting plate 10 is welded on both the exhaust pipe 7 and the air duct 11, which facilitates the disassembly and assembly of the exhaust pipe 7 and the air duct 11 through the first hollow mounting plate 10.

Claims

1. A negative pressure device for ASA synthetic resin production, characterized in that: The invention comprises an upper hopper (1) and a material guide branch pipe (15), wherein a negative pressure material extraction tank (3) is uniformly welded to the top of the upper hopper (1), a bottom cover plate (20) is movably connected to the bottom of the negative pressure material extraction tank (3), a fixing frame (19) is welded to the bottom end of the negative pressure material extraction tank (3), motors (18) connected to the bottom cover plate (20) are installed on both sides of the fixing frame (19), a protective cover body (6) is installed on the top of the negative pressure material extraction tank (3), an air guide pipe (11) is welded to the protective cover body (6), and the bottom of the air guide pipe (11) is threadedly connected to A filter screen slot (14), a micro static-eliminating ion fan (22) is installed inside a protective cover (6) on one side of the filter screen slot (14) by means of screws, one end of the air guide pipe (11) is connected to the housing (2) and the air pump (8), a pressure gauge (12) matching the air pump (8) is installed on the air guide pipe (11), the material guide branch pipe (15) is welded to the negative pressure material extraction tank (3), a feed main pipe (4) is welded between adjacent material guide branch pipes (15), and both the feed main pipe (4) and the air guide pipe (11) are installed with a solenoid valve (16).

2. The negative pressure equipment for producing ASA synthetic resin according to claim 1, characterized in that: The protective cover body (6) and the negative pressure extraction tank (3) are both welded with second hollow mounting plates (13), and screws are evenly arranged between adjacent second hollow mounting plates (13).

3. The negative pressure equipment for ASA synthetic resin production according to claim 1, characterized in that: The input end of the air extraction pump (8) is provided with an air extraction pipe (7) welded to the housing (2), and first hollow mounting plates (10) are welded to both the air extraction pipe (7) and the air guide pipe (11), and screws are evenly arranged between adjacent first hollow mounting plates (10).

4. The negative pressure equipment for producing ASA synthetic resin according to claim 1, characterized in that: The air pump (8) is mounted inside the casing (2) by means of screws, and a rubber buffer pad is provided between the air pump (8) and the casing (2).

5. The negative pressure equipment for ASA synthetic resin production according to claim 1, characterized in that: The output end of the air extraction pump (8) is provided with an air venting pipe (9), and an internal thread connection layer is provided inside the end of the air venting pipe (9) away from the housing (2).

6. The negative pressure equipment for producing ASA synthetic resin according to claim 1, characterized in that: A vibration motor (5) is installed at the bottom of one side of the upper hopper (1) and the negative pressure extraction tank (3).

7. The negative pressure equipment for ASA synthetic resin production according to claim 1, characterized in that: The material guide branch pipe (15) and the negative pressure extraction tank (3) are both provided with two, and a flange (17) is welded to the side of the material feed main pipe (4) away from the material guide branch pipe (15).

8. The negative pressure equipment for ASA synthetic resin production according to claim 1, characterized in that: The bottom cover plate (20) is provided with a silicone rubber sealing layer (21) that matches the bottom opening of the negative pressure extraction tank (3).

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