CN203582006U - Negative pressure feeder - Google Patents

Abstract

The utility model discloses a negative pressure feeding machine, which comprises a barrel body, a dust collecting barrel, a three-way pipe, a reverse airflow switch and a filter element, wherein the top surface of the barrel body is provided with an air outlet, the bottom surface is provided with a feed opening matched with the dust collecting barrel, an opening on the dust collecting barrel is butted with the feed opening, the top of the side wall of the barrel body is provided with an air suction port, the filter element is arranged in the barrel body and can cover the air outlet, a first interface of the three-way pipe is connected with the air outlet, a second interface is connected with a vacuum pumping device, the reverse airflow switch is arranged on a third interface of the three-way pipe and can control the opening or closing of the third interface; the utility model discloses the principle of application atmospheric pressure difference makes gaseous reverse flow back to the bucket internal, makes material and dust adsorb on the filter core break away from automatically and fall to the dust collection bucket on, reaches the purpose of automatic clearance filter core, effectively contracts and subtracts traditional filter core clearance process, has also avoided the unnecessary material extravagant simultaneously, and reduce cost shortens production cycle, promotes work efficiency greatly.

Description

Negative pressure feeder

technical field

The utility model relates to the technical field of feeding machines, in particular to a negative pressure feeding machine.

Background technique

In the prior art, most of the charging work of various powder mixing and crushing equipment is done by manual dumping, which is not only labor-intensive, but also dusty, polluting the environment, and easily causing bodily harm to operators.

Later, a suction machine was launched on the market, which uses the principle of atmospheric pressure difference to extract the air in the closed container through the operation of negative pressure sources such as blowers and vacuum pumps, and generates negative pressure in the closed container to connect the closed container. The suction nozzle on one side sucks the material into the airtight container under the action of atmospheric pressure, and then completes the purpose of feeding.

However, during the suction process, in order to prevent the material from entering the negative pressure source, it is necessary to install a filter element for filtration. Although the filtering function can be realized in this way, the material will adhere to the filter element and will not fall off automatically, which not only causes a certain waste of material, but also needs to clean the filter element every time the suction process is completed, otherwise it will affect the quality of the filter element. The material effect will bring inconvenience to production and use, and affect the production efficiency. In addition, during the cleaning process, the dust in the material will fly around, affecting the working environment and endangering the health of the operators.

Utility model content

In view of the above shortcomings, the purpose of this utility model is to provide a negative pressure feeding machine with ingenious and reasonable structural design, which can automatically clean the filter element and has a good feeding effect.

In order to achieve the above purpose, the technical solution provided by the utility model is: a negative pressure feeding machine, which includes a bucket body, a dust collection bucket, a three-way pipe, a reverse air flow switch and a filter element, the top surface of the bucket body It is provided with an air outlet, and the bottom surface is provided with a discharge port that is compatible with the dust collection bucket. mouth, the filter element is arranged in the barrel, and can cover the air outlet mask, the first interface of the three-way pipe is connected with the air outlet, the second interface is connected with the vacuum device, and the The reverse airflow switch is arranged on the third interface of the tee, and can control the opening or closing of the third interface.

As an improvement of the utility model, the filter element includes a mounting bracket and a barrel-shaped core with an opening at the top, the barrel-shaped core is installed in the barrel through the mounting bracket, and the barrel-shaped core The opening of the air outlet is in contact with the air outlet.

As an improvement of the utility model, the mounting bracket includes a V-shaped frame and fixing screws, the lower end of the V-shaped frame is connected with the bottom of the barrel-shaped core through fixing screws, and the upper end is fixed on the air outlet on both sides.

As an improvement of the utility model, the reverse air flow switch includes a cylinder, a valve housing and a piston arranged in the valve housing, the bottom surface of the valve housing is provided with a dust removal air inlet, and the side wall of the valve housing is provided with The air inlet connected to the third interface of the three-way pipe, the cylinder body of the cylinder is fixed on the other side wall of the valve casing, the driving rod of the cylinder extends into the valve casing, and is connected with the The pistons are connected.

As an improvement of the utility model, a filter element protection plate is provided in the barrel corresponding to the outer position of the filter element.

As an improvement of the utility model, the dust collecting bucket is connected with the bucket body through a detachable lock.

As an improvement of the utility model, a vacuum gauge is provided on the three-way pipe.

As an improvement of the utility model, the vacuuming device is a blower or a vacuum pump.

The beneficial effects of the utility model are as follows: the utility model has an ingenious and reasonable structural design, uses the principle of atmospheric pressure difference, and makes the barrel body form a negative pressure through the operation of the vacuum device, and the material enters the barrel body from the suction port, and is blocked and filtered by the filter element. When the loading is completed, the vacuum device and the suction port are closed at the same time. At this time, the barrel is still in a negative pressure state, and then the reverse airflow switch is turned on to make the third of the three-way pipe The interface is connected with the external space, and the gas flows back into the bucket in reverse, so that the materials and dust adsorbed on the filter element are automatically separated and dropped to the dust collection bucket, so as to achieve the purpose of automatic cleaning of the filter element and ensure the next round of feeding work Quality, not only effectively reduce the traditional filter element cleaning process, effectively protect the working environment and the health of the operator, but also greatly improve work efficiency, and at the same time avoid unnecessary waste of materials and reduce costs. In addition, the overall structure is simple, compact, and easy to use. Manufacture and maintenance are low in cost, and are conducive to widespread popularization and application.

Below in conjunction with accompanying drawing and embodiment, the utility model is further described.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model.

Fig. 2 is a schematic diagram of the cross-sectional structure along line A-A of Fig. 1 .

Fig. 3 is a schematic diagram of the B-B sectional structure of Fig. 1 .

Detailed ways

Embodiment, referring to Fig. 1, Fig. 2 and Fig. 3, a negative pressure feeding machine provided in this embodiment includes a bucket body 1, a dust collection bucket 2, a tee pipe 3, a reverse air flow switch 4 and a filter element 5 , the top surface of the bucket body 1 is provided with an air outlet 11, and the bottom surface is provided with a discharge opening that is compatible with the dust collection bucket 2, and the opening on the dust collection bucket 2 is connected to the discharge opening, The top of the side wall of the barrel body 1 is provided with an air suction port 12, the filter element 5 is arranged in the barrel body 1, and can cover the air outlet port 11, and the first interface of the three-way pipe 3 31 is connected to the air outlet 11, the second port 32 is connected to the vacuum device, the reverse airflow switch 4 is set on the s of the tee pipe 3, and can control the opening or closing of the third port 33 closure.

The filter element 5 includes a mounting bracket and a barrel-shaped core 51 with an opening at the top, the barrel-shaped core 51 is installed in the barrel 1 through the mounting bracket, and the opening of the barrel-shaped core 51 is connected to the The air outlets 11 are butted against each other. The mounting bracket includes a V-shaped frame 52 and fixing screws 53, the lower end of the V-shaped frame 52 is connected to the bottom of the barrel-shaped core 51 through the fixing screws 53, and the upper end is fixed on both sides of the air outlet 11 . Easy to install and easy to disassemble.

The reverse air flow switch 4 includes a cylinder 41, a valve housing 42 and a piston 43 arranged in the valve housing 42. The air inlet connected to the third interface 33 of the tee pipe 3, the cylinder body of the cylinder 41 is fixed on the other side wall of the valve housing 42, and the driving rod of the cylinder 41 extends into the valve housing 42 and connected with the piston 43.

Corresponding to the outer position of the filter element 5 , a filter element protection plate 6 is arranged inside the barrel body 1 . It can effectively prevent the high-speed airflow entering through the suction port 12 from directly impacting on the filter element 5, thereby achieving the purpose of protecting the filter element 5 and prolonging the service life. A gap is preferably reserved between the filter element protection plate 6 and the filter element 5, so that the filter element 5 can maintain its original filtering capacity on the basis of protecting the filter element 5.

The dust collecting barrel 2 is connected with the barrel body 1 through a detachable lock 7 . A detachable lock 7 is provided to facilitate the quick disassembly and assembly of the dust collection bucket 2 .

The three-way pipe 3 is provided with a vacuum gauge 8 . It is convenient for the operator to know the vacuum degree in the barrel body 1 directly and clearly.

The vacuum device is preferably a blower or a vacuum pump. The structure is simple and the use is convenient. Of course, the vacuuming device can also adopt other negative pressure sources with vacuuming function.

When working, using the principle of atmospheric pressure difference, the barrel body 1 forms a negative pressure through the operation of the vacuum device, and the material enters the barrel body 1 from the suction port 12, and is automatically dropped into the dust collecting barrel under the blocking filter of the filter element 5. 2 on.

When feeding is completed, close the suction port 12 and the second interface 32 of the closed tee pipe 3 or close the vacuum device; at this time, the barrel body 1 is still in a negative pressure state, and the drive rod of the cylinder 41 is retracted, and then Drive the piston 43 to separate from the air inlet on the valve housing 42, and the gas in the external space enters the valve housing 42 through the dust removal air inlet 44 on the valve housing 42, and passes through the air inlet, the air outlet 11 and the valve housing 42 successively. The filter element 5 enters the barrel body 1 to realize the reverse flow of gas, and then the materials and dust adsorbed on the filter element 5 are automatically separated and dropped to the dust collecting bucket 2, so as to achieve the purpose of automatically cleaning the filter element 5 and ensure the next step. The quality of the feeding work of the wheel not only effectively reduces the traditional filter element 5 cleaning process, effectively protects the working environment and the health of the operator, but also greatly improves work efficiency, and at the same time avoids unnecessary waste of materials, reduces costs, and facilitates access The next process can effectively shorten the production cycle and improve work efficiency.

According to the disclosure and teaching of the above specification, those skilled in the art to which the present utility model belongs can also change and modify the above embodiment. Therefore, the utility model is not limited to the specific implementation manners disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model. As described in the above-mentioned embodiments of the utility model, other feeding machines obtained by adopting the same or similar structure are all within the protection scope of the utility model.

Claims (8)

1. A negative pressure feeding machine is characterized in that it comprises a staving, a dust collection bucket, a tee pipe, a reverse airflow switch and a filter element, the top surface of the staving is provided with an air outlet, and the bottom surface is provided with a The dust collecting bucket is matched with the discharge opening, the opening on the dust collection bucket is connected with the discharge opening, the side wall top of the barrel body is provided with an air suction port, and the filter element is arranged on the In the barrel, the air outlet mask can be covered, the first interface of the three-way pipe is connected with the air outlet, the second interface is connected with the vacuum device, and the reverse airflow switch is set on the three-way on the third interface of the pipe, and can control the opening or closing of the third interface. 2. The negative pressure feeding machine according to claim 1, characterized in that: the filter element includes a mounting bracket and a barrel-shaped core with an opening at the top, and the barrel-shaped core is installed on the inside the barrel, and the opening of the barrel-shaped core is connected to the air outlet. 3. The negative pressure feeder according to claim 2, characterized in that: the mounting bracket includes a V-shaped frame and fixing screws, and the lower end of the V-shaped frame is connected to the bottom of the barrel-shaped core through the fixing screws. The upper end is fixed on both sides of the air outlet. 4. The negative pressure feeding machine according to claim 1, characterized in that: the reverse air flow switch includes a cylinder, a valve housing and a piston arranged in the valve housing, and the bottom surface of the valve housing is provided with a dust removal air inlet , one side wall of the valve housing is provided with an air inlet connected to the third interface of the tee pipe, the cylinder body of the cylinder is fixed on the other side wall of the valve housing, and the drive rod of the cylinder Extend into the valve housing and connect with the piston. 5. The negative pressure feeder according to claim 1, characterized in that: a filter element protection plate is provided in the barrel corresponding to the outer position of the filter element. 6. The negative pressure feeding machine according to claim 1, characterized in that: the dust collecting bucket is connected to the bucket body through a detachable lock. 7. The negative pressure feeder according to claim 1, characterized in that: the three-way pipe is provided with a vacuum gauge. 8. The negative pressure feeder according to claim 1, characterized in that: the vacuum device is a blower or a vacuum pump.

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