Sheet metal material feeding system

Abstract

The utility model relates to the technical field of target material preparation feeding equipment, and provides a flaky metal material feeding system which comprises a storage bin, a transfer unit, an output bin and an output pipeline. The storage bin, the transfer unit and the output bin are connected in sequence; the storage bin is used for storing sheet metal materials; the transfer unit is used for conveying sheet metal materials with preset weight into the output stock bin; one end of the output pipeline is communicated with the output stock bin, and the other end of the output pipeline is communicated with external closed processing equipment; the output pipeline is sequentially provided with a first valve and a second valve in the conveying direction to achieve feeding control, and the first valve and the second valve cannot be opened at the same time, so that the system can quantitatively feed sheet metal materials into external closed machining equipment; besides, in the feeding process, external closed processing equipment can be prevented from being in direct contact with the outside, and gas in the closed processing equipment is prevented from leaking out of the environment.

Description

Technical Field

[0001] This utility model relates to the technical field of target material preparation and feeding equipment, specifically a sheet metal material feeding system. Background Technology

[0002] Target materials are one of the main materials for thin film fabrication, primarily used in integrated circuits, flat panel displays, solar cells, recording media, and smart glass, requiring high purity and stability. The fabrication process of target materials mainly includes the following steps: metal purification, powder metallurgy, vacuum melting and hot isostatic pressing, and precision machining. Automated material conveying is a crucial step in the fabrication process. Currently, automated conveying of sheet metal materials commonly suffers from problems such as clogging, jamming, and inaccurate dosage. Furthermore, feeding metal materials into sealed equipment can expose it to the outside environment, posing a risk of gas leakage and causing depressurization, requiring repressurization before normal operation can resume.

[0003] CN108861465A discloses a closed quantitative vibrating feeder and its control system, including a vibrating hopper. Both ends of the vibrating hopper are fixedly connected to a discharge channel and a metering hopper via adhesive-coated canvas. The bottom sides of the vibrating hopper are connected to a fixed frame via two sets of elastic buffer mechanisms. A vibrating motor bracket is fixed to the bottom surface of the vibrating hopper, and several vibrating motors are fixed on the vibrating motor bracket. A weighing hopper is connected to the top of the discharge channel. In the aforementioned patent document, the material first passes through the weighing hopper and then enters the vibrating hopper through the discharge channel for vibrating discharge. In the metering hopper, a pressure sensor calculates the material flow rate, and a rotary paddle level sensor determines the blockage situation. The aforementioned patent is applied to feeding materials into a closed system where the air pressure is greater than the ambient atmospheric pressure. Although it achieves a certain degree of isolation through structural sealing and material accumulation, it is limited to isolating the weighing hopper and the vibrating conveying hopper. The metering hopper is still connected to the closed system. This means that during the material conveying process, when the metering hopper and the vibrating conveying hopper are connected, the closed system is easily exposed to the outside world. Under the influence of air pressure, there is still a risk of leakage of toxic gases.

[0004] Therefore, the technical problem to be solved in this case is: how to avoid the problem of the sealed equipment coming into contact with the outside world when feeding materials into the sealed equipment. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a sheet metal material feeding system. This system can not only quantitatively feed sheet metal materials into the external sealed processing equipment, but also prevent the external sealed processing equipment from directly contacting the outside world during the feeding process, thus preventing the gas inside from leaking into the environment.

[0006] The technical solution of this utility model is:

[0007] A feeding system for sheet metal materials includes a storage bin, a transfer unit, an output bin, and an output pipe; the storage bin, transfer unit, and output bin are connected in sequence; the storage bin is used to store sheet metal materials; the transfer unit is used to transport sheet metal materials of a preset weight to the output bin; one end of the output pipe is connected to the output bin, and the other end of the output pipe is used to be sealed and connected to an external closed processing device; the output pipe is provided with a first valve and a second valve in sequence along the conveying direction, and a cavity for temporarily storing sheet metal materials is formed between the first valve and the second valve;

[0008] When the first valve is closed and the second valve is closed, the transfer unit conveys a preset weight of sheet metal material to the output hopper;

[0009] When the first valve is opened and the second valve is closed, the sheet-like metal material in the output hopper naturally falls into the cavity.

[0010] When the first valve is closed and the second valve is opened, sheet metal material is added to the externally installed sealed processing equipment from the cavity.

[0011] In the above-mentioned sheet metal material feeding system, an air jet pipe is also provided on the output pipe. The air jet pipe is arranged between the first valve and the second valve, and one end of the air jet pipe along its length is connected to the cavity; the other end is used to connect to the external air source.

[0012] In the above-mentioned sheet metal material feeding system, a pressure regulating valve is installed on the jet pipe.

[0013] In the above-mentioned sheet metal material feeding system, the sheet metal material feeding system also includes a PLC controller, the first valve and the second valve are both electric butterfly valves, and the first valve and the second valve are both connected to the PLC controller for communication.

[0014] In the above-mentioned sheet metal material feeding system, a level gauge is also installed on the output pipe; the level gauge is arranged between the first valve and the second valve; the level gauge is used to detect whether the sheet metal material in the output pipe has been emptied, and the level gauge is connected to the PLC controller for communication.

[0015] In the above-mentioned sheet metal material feeding system, a third valve is provided at the output end of the storage bin; the third valve is used to control whether the storage bin conveys sheet metal material to the transfer unit.

[0016] In the above-mentioned sheet metal material feeding system, the storage bin is equipped with a first weighing module; the output bin is equipped with a second weighing module.

[0017] In the above-mentioned sheet metal material feeding system, the transfer unit is a vibrating feeder.

[0018] In the above-mentioned sheet metal material feeding system, the storage bin is equipped with a first arch-breaking device; the output bin is equipped with a second arch-breaking device.

[0019] This utility model has at least one of the following advantages or beneficial effects:

[0020] The sheet metal material feeding system of this invention can quantitatively feed material into an externally installed closed processing equipment; at the same time, by controlling the opening and closing of the first valve and the second valve, the externally installed closed processing equipment is prevented from directly contacting the outside world when feeding material, thereby preventing toxic gases inside the externally installed closed processing equipment from leaking into the ambient atmosphere and preventing production accidents. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the sheet metal material feeding system of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] Storage bin 1; transfer unit 2; output bin 3; output pipe 4; first arch breaking device 11; second arch breaking device 12; third valve 13; first valve 41; second valve 42; jet pipe 43; level gauge 44; first weighing module 101; second weighing module 102; external sealed processing equipment a. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1 As shown, an embodiment of the present invention provides a sheet metal material feeding system, including a storage bin 1, a transfer unit 2, an output bin 3, and an output pipe 4; the storage bin 1, the transfer unit 2, and the output bin 3 are connected in sequence; the storage bin 1 is used to store sheet metal materials; the transfer unit 2 is used to transport sheet metal materials of a preset weight to the output bin 3; one end of the output pipe 4 is connected to the output bin 3, and the other end of the output pipe 4 is used to be sealed and connected to an external closed processing device a; the output pipe 4 is provided with a first valve 41 and a second valve 42 in sequence along the conveying direction, and a cavity capable of temporarily storing sheet metal materials is formed between the first valve 41 and the second valve 42;

[0026] In practical applications, it should be ensured that the first valve 41 and the second valve 42 cannot be opened simultaneously. Specifically, the sheet metal material feeding system transports the sheet metal material in the storage bin 1 to the output bin 3 through the transfer unit 2. During this process, the first valve 41 and the second valve 42 remain closed. When the output bin 3 receives a preset weight of sheet metal material, the transfer unit 2 stops transporting, and then the first valve 41 opens while the second valve 42 remains closed, allowing the sheet metal material in the output bin 3 to fall completely into the cavity of the output pipe 4. When feeding is required, the first valve 41 closes and the second valve 42 opens, and the material falls from the cavity of the output pipe 4 into the external sealed processing equipment a, completing the quantitative feeding.

[0027] The sheet metal material feeding system of this embodiment has at least the following advantages: 1. It quantitatively feeds material into the externally installed closed processing equipment a; 2. By controlling the opening and closing of the first valve 41 and the second valve 42, it avoids direct contact between the externally installed closed processing equipment a and the outside world when feeding material into the externally installed closed processing equipment a, thereby preventing toxic gases inside the externally installed closed processing equipment a from leaking into the ambient atmosphere and preventing production accidents from occurring.

[0028] To improve the automation level of the feeding system, this embodiment uses a PLC controller to achieve automated feeding. Specifically, both the first valve 41 and the second valve 42 are electric butterfly valves and are communicatively connected to the PLC controller (not shown in the figure). The structure and control method of the PLC controller are well-known and commonly used techniques in this field; therefore, for the sake of simplicity, this embodiment will not describe them in detail.

[0029] In practical application, the output pipe 4 is also equipped with a jet pipe 43. The jet pipe 43 is arranged between the first valve 41 and the second valve 42, with one end of the jet pipe 43 connected to the cavity along its length and the other end connected to the external air source. When feeding is required, the first valve 41 is closed and the second valve 42 is opened. At the same time, air is continuously injected into the output pipe 4 through the jet pipe 43. On the one hand, the blowing can remove the bridging and blockage that occurs during feeding, ensuring that the material in the output pipe 4 is completely emptied. On the other hand, it can increase the air pressure in the output pipe 4, keeping the air pressure of the external sealed processing equipment a constant, which significantly improves the prevention of gas leakage. Of course, it should be noted that the external sealed processing equipment a is not completely sealed; it still has a pressure relief system for regulating air pressure.

[0030] As a preferred embodiment, in order to improve the controllability of air pressure, a pressure regulating valve is provided on the jet pipe 43.

[0031] As a further preferred embodiment, a level gauge 44 is also provided on the output pipe 4; the level gauge 44 is arranged between the first valve 41 and the second valve 42; the level gauge 44 is used to detect whether the sheet metal material in the output pipe 4 has been emptied and outputs an electrical signal to the PLC controller. Specifically, when the level gauge 44 detects that there is still sheet metal material in the output pipe 4 that has not been discharged, the second valve 42 must not be closed, and the feeding time is extended for a period of time based on the PLC controller and the feeding speed; if the material is still not discharged, the jet pipe 43 performs pulsed or continuous jetting to spray off the residual material in the output pipe 4; if the material is still not discharged, an alarm signal is issued. Under this design, in addition to ensuring that the sheet metal material in the output pipe 4 is completely emptied, the level gauge 44 can also control the opening and closing of the first valve 41 and the second valve 42, further preventing the external sealed processing equipment a from directly contacting the outside world.

[0032] In this embodiment, in order to facilitate the control of the feeding amount and improve the accuracy of the feeding weight, the transfer unit 2 is a vibrating feeder.

[0033] In this embodiment, in order to accurately control the weight of the material being fed, a third valve 13 is provided on the output end of the storage bin 1; the third valve 13 is used to control whether the storage bin 1 conveys sheet metal material to the transfer unit 2.

[0034] In this embodiment, to further precisely control the weight of the material being fed, the storage silo 1 is equipped with a first weighing module 101; the output silo 3 is equipped with a second weighing module 102. Under this design, the first weighing module 101 and the second weighing module 102 serve a comparative function. For example, if the storage silo 1 loses M kg of material, while the output silo 3 only receives N kg (less than M kg) of material, it indicates an error in the feeding system, and this is promptly reported. Then, by checking the operation of the storage silo 1 and the transfer unit 2, the problem of insufficient material feeding is avoided.

[0035] In practical applications, to prevent bridging, blockage, and material adhesion to the outer walls of the storage silo 1 and the output silo 3, the storage silo 1 is equipped with a first arch-breaking device 11; the output silo 3 is equipped with a second arch-breaking device 12. In this embodiment, both the first arch-breaking device 11 and the second arch-breaking device 12 are vibratory devices. Of course, this embodiment does not limit the type of the first arch-breaking device 11 and the second arch-breaking device 12. Those skilled in the art can select a fluidized bed arch-breaking device, a vibratory arch-breaking device, or a spiral arch-breaking device according to the actual material being conveyed.

[0036] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A feeding system for sheet-like metal materials, characterized in that, The system includes a storage silo, a transfer unit, an output silo, and an output pipeline; the storage silo, transfer unit, and output silo are connected in sequence; the storage silo is used to store sheet metal materials; the transfer unit is used to transport sheet metal materials of a preset weight to the output silo; one end of the output pipeline is connected to the output silo, and the other end of the output pipeline is used to seal and connect to an external closed processing device; the output pipeline is provided with a first valve and a second valve in sequence along the conveying direction, and a cavity capable of temporarily storing sheet metal materials is formed between the first valve and the second valve; When the first valve is closed and the second valve is closed, the transfer unit delivers a preset weight of sheet metal material to the output hopper; When the first valve is opened and the second valve is closed, the sheet-like metal material in the output hopper naturally falls into the cavity; When the first valve is closed and the second valve is open, the cavity adds sheet metal material to the externally installed closed processing equipment.

2. The sheet metal material feeding system according to claim 1, characterized in that, The output pipe is also equipped with a jet pipe; the jet pipe is arranged between the first valve and the second valve, and one end of the jet pipe along its length is connected to the cavity, while the other end is used to connect to an external air source.

3. The sheet metal material feeding system according to claim 2, characterized in that, The jet pipe is equipped with a pressure regulating valve.

4. The sheet metal material feeding system according to claim 1, characterized in that, The sheet metal material feeding system also includes a PLC controller. The first valve and the second valve are both electric butterfly valves, and both the first valve and the second valve are communicatively connected to the PLC controller.

5. The sheet metal material feeding system according to claim 4, characterized in that, The output pipe is also equipped with a level gauge; the level gauge is arranged between the first valve and the second valve; the level gauge is used to detect whether the sheet metal material in the output pipe has been emptied, and the level gauge is communicatively connected to the PLC controller.

6. The sheet metal material feeding system according to claim 1, characterized in that, The storage silo is equipped with a third valve at its output end; the third valve is used to control whether the storage silo conveys sheet metal material to the transfer unit.

7. The sheet metal material feeding system according to claim 1, characterized in that, The storage silo is equipped with a first weighing module; the output silo is equipped with a second weighing module.

8. The sheet metal material feeding system according to claim 1, characterized in that, The transfer unit is a vibrating feeder.

9. The sheet metal material feeding system according to claim 1, characterized in that, The storage silo is equipped with a first arch-breaking device; the output silo is equipped with a second arch-breaking device.

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