Oil injection device with automatic quantification function and capable of achieving two-way independent control

Abstract

The invention relates to the technical field of oil injection equipment, in particular to an oil injection device with an automatic quantification function and capable of achieving two-way independent control. The nozzle is used for spraying oil liquid; one end of the metering pump is connected with the oil tank, and the other end of the metering pump is connected with the nozzle; and the gas supply gas path is connected with the nozzle so as to supply high-pressure gas to the nozzle. According to the oil injection device with the automatic quantifying function and the two-way independent control function, the mode that the oil way and the gas way are both connected into the gas nozzle is adopted, the oil tank does not need to maintain pressure, the risks of aging, bursting and the like of the tank are avoided, the metering pump is adopted for conveying oil, power is provided, metering of the oil flow is achieved, and the oil injection device is convenient to use. In addition, the equipment can automatically generate oil injection indexes according to parameters such as the punching speed of a punching machine, the width of raw materials and the step pitch of a die, and manual re-adjustment is not needed.

Description

Technical Field

[0001] The invention relates to the technical field of oil injection equipment, in particular to an oil injection device with an automatic quantitative function and capable of two-way independent control. Background Art

[0002] The oil sprayer is a device that sprays material oil on the surface of raw materials, and is generally used in conjunction with a punch press. It consists of a nozzle, an oil pump, an oil tank, an electronic control device, etc. The working principle is: the electronic control device drives the oil pump motor to send the material oil into the nozzle and then spray it out after inflating.

[0003] Traditional fuel injection equipment requires injecting material oil into the fuel tank and then injecting air pressure. The air pressure presses the material oil inside the fuel tank into the nozzle and then works in conjunction with the air pressure.

[0004] During the whole process, the oil tank is always in a pressure-maintaining state, and the equipment shell is prone to aging and cracking, which poses a safety hazard. At the same time, the amount of fuel injection changes with the internal air pressure of the oil tank, and the amount of fuel injection cannot be stabilized, and the amount of fuel used cannot be recorded. Summary of the invention

[0005] The technical problem to be solved by the present invention is: in order to solve the technical problems in the prior art, the present invention provides an oil injection device with an automatic quantitative function and capable of two independent control paths.

[0006] The technical solution adopted by the present invention to solve its technical problems is: an oil injection device with automatic quantitative function and two-way independent control, including an oil tank for storing oil; a nozzle for spraying oil; a metering pump, one end of the metering pump is connected to the oil tank, and the other end is connected to the nozzle; an air supply path, the air supply path is connected to the nozzle to supply high-pressure gas to the nozzle.

[0007] The present invention provides an oil injection device with automatic quantitative function and two-way independent control. Both the oil circuit and the air circuit are connected to the air nozzle. The oil tank does not need to maintain pressure, which solves the risks of tank aging and explosion. Secondly, a metering pump is used to transport the oil, which not only provides power but also realizes the measurement of the oil flow. In addition, the equipment can automatically generate an oil injection index according to parameters such as the punching speed of the punching machine, the width of the raw material, and the step distance of the mold, without the need for manual adjustment.

[0008] Furthermore, the air supply circuit is connected with a control air circuit and an adjustable air circuit, and both the control air circuit and the adjustable air circuit are connected with the nozzle.

[0009] Furthermore, a solenoid valve is provided on the control gas circuit.

[0010] Furthermore, the adjustable gas circuit is provided with a pressure regulating valve and a pressure gauge.

[0011] Furthermore, the oil injection device also includes a PLC system, a servo driver and a servo motor. The PLC system is electrically connected to the servo driver, the servo driver is electrically connected to the servo motor, and the output end of the servo motor is connected to the pump head of the metering pump.

[0012] Furthermore, a metering mechanism is provided between the metering pump and the nozzle.

[0013] Furthermore, the metering mechanism includes a shell, a flow chamber is provided in the shell, an inlet and an outlet are also provided on the shell, and the inlet and the outlet are both connected to the flow chamber; a rotating rod, the rotating rod is rotatably connected to the shell; a metering blade, the metering blade is connected to the rotating rod, and there are multiple metering blades in a circumferential array along the rotating rod, and a metering chamber is formed between adjacent metering blades and the side wall of the flow chamber; a metering component, the metering component is arranged on the shell, the metering component is connected to the rotating rod, and measures the rotation angle of the rotating rod.

[0014] Furthermore, the metering assembly includes an identification member and a check member, wherein the check member is disposed on the housing and connected to the rotating rod, and the identification member is mounted on the housing to identify the rotation angle of the rotating rod.

[0015] Furthermore, the check member includes a ratchet and a pawl, the ratchet is coaxially connected to the rotating rod, the pawl is rotatably connected to the shell through a rotating shaft, and the ratchet is provided with a locking tooth for contacting the pawl; a torsion spring is sleeved on the rotating shaft to apply a torque to the pawl so that the pawl rotates toward the ratchet; a fixing rod is connected to the shell, and a pressure rod is connected to the pawl, one end of the torsion spring abuts against a side of the fixing rod facing the ratchet, and the other end abuts against a side of the pressure rod away from the ratchet.

[0016] Furthermore, the identification component includes an induction sheet and a sensor, the induction sheet is mounted on the ratchet, the sensor is mounted on the housing, and the sensor is electrically connected to the PLC system.

[0017] The beneficial effects of the present invention are:

[0018] 1. The oil circuit and the gas circuit are both connected to the gas nozzle. The oil tank does not need to maintain pressure, which solves the risks of tank aging and explosion. Secondly, the metering pump is used to transport the oil, which not only provides power but also measures the oil flow. In addition, the equipment can automatically generate the injection index according to the parameters such as the punching speed, raw material width, and mold step, without manual adjustment;

[0019] 2. The pressure in the nozzle can be adjusted through two independent air circuits: the control air circuit and the adjustable air circuit, which is convenient for use in different scenarios and improves the versatility of the equipment;

[0020] 3. During operation, the fluid enters the circulation chamber through the inlet and then enters the metering chamber. When the metering chamber is filled with fluid, the metering blade is pushed to rotate. When the metering chamber filled with fluid is rotated to connect with the outlet, the fluid flows out from the outlet. The rotation angle of the rotating rod is then monitored by the metering component, and the flow rate of the fluid is converted by the volume of the metering chamber to achieve accurate measurement of smaller liquid flow rates. In addition, the volume of the metering chamber can be changed to meet different measurement requirements and achieve ml-level flow measurement. The ratchet, pawl and torsion spring are arranged to facilitate the restriction of the rotating rod so that the rotating rod can only rotate in one direction. The sensor and the induction sheet are arranged to sense the induction sheet. Each time the sensor senses the sheet, the rotating rod rotates one circle, thereby achieving accurate measurement of the fluid flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a schematic diagram of an overall fuel injection device with an automatic quantitative function and two-way independent control in the present invention.

[0023] Figure 2 It is a schematic diagram of a fuel tank embodied in the present invention.

[0024] Figure 3 It is a schematic diagram of a rack embodying the present invention.

[0025] Figure 4 It is a schematic diagram of a servo driver and a servo motor in the present invention.

[0026] Figure 5 It is a structural schematic diagram showing the appearance of the metering mechanism in the present invention.

[0027] Figure 6 It is a schematic diagram of a metering blade in the present invention.

[0028] Figure 7 It is a schematic diagram of the ratchet and the pawl in the present invention.

[0029] Figure 8 Schematic diagram of the sensor in the present invention

[0030] In the figure: 1. shell; 11. circulation cavity; 12. inlet; 13. outlet; 14. first cone cavity; 15. second cone cavity; 16. mounting hole; 17. observation hole; 2. rotating rod; 21. metering blade; 22. metering cavity; 3. metering assembly; 31. ratchet; 311. latch tooth; 312. pressure rod; 32. pawl; 33. torsion spring; 34. fixing rod; 35. induction sheet; 36. sensor; 4. oil tank; 41. nozzle; 42. metering pump; 43. air supply line; 431. control air line; 432. adjustable air line; 433. solenoid valve; 434. pressure regulating valve; 435. pressure gauge; 44. PLC system; 45. servo drive; 46. servo motor; 5. rack; 51. touch screen; 52. cooling fan; 53. power switch. DETAILED DESCRIPTION

[0031] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The invention discloses an oil injection device with an automatic quantitative function and capable of independently controlling two paths.

[0034] Reference Figures 1 to 4, an oil injection device with automatic quantitative function and two-way independent control, including a frame 5, in which an oil tank 4, a nozzle 41, a metering pump 42 and an air supply circuit 43 are installed. The oil tank 4 is used to store oil, and the nozzle 41 is used to spray oil; one end of the metering pump 42 is connected to the oil tank 4, and the other end is connected to the nozzle 41 to input the oil into the nozzle 41. The air supply circuit 43 is connected to the nozzle 41 to supply high-pressure gas to the nozzle 41. The oil circuit and the air circuit are connected to the air nozzle, and the oil tank 4 does not need to maintain pressure, which solves the risks of aging and bursting of the can. Secondly, the metering pump 42 is used to realize the transportation of oil, which not only provides power, but also realizes the measurement of the oil flow. In addition, the equipment can automatically generate the oil injection index according to parameters such as the punching speed of the punching machine, the width of the raw material, and the step distance of the mold, without manual adjustment.

[0035] Specifically, the air supply circuit 43 is connected to a control air circuit 431 and an adjustable air circuit 432, and both the control air circuit 431 and the adjustable air circuit 432 are connected to the nozzle 41. The control air circuit 431 is provided with a solenoid valve 433, and the adjustable air circuit 432 is provided with a pressure regulating valve 434 and a pressure gauge 435. The pressure in the nozzle 41 is adjusted by two independent air circuits, the control air circuit 431 and the adjustable air circuit 432, so as to facilitate use in different scenarios and improve the versatility of the equipment. The pressure regulating valve 434 is installed on the rack 5 so as to adjust the pressure regulating valve 434. The pressure gauge 435 is installed on the rack 5 for real-time viewing.

[0036] The oil injection device also includes a PLC system 44, a servo driver 45 and a servo motor 46. The PLC system 44 is electrically connected to the servo driver 45, the servo driver 45 is electrically connected to the servo motor 46, and the output end of the servo motor 46 is fixedly connected to the pump head of the metering pump 42. When working, the PLC system 44 receives instructions and issues instructions to the servo driver 45 according to the program and the corresponding functional mode. After receiving the instructions, the servo driver 45 drives the servo motor 46 to drive the pump head of the metering pump 42 to rotate. When the metering pump 42 head starts to rotate, the internal structure generates directional suction, and the oil is drawn out from the oil tank 4 through the pipeline and transported to the nozzle 41.

[0037] The rack 5 is provided with a touch screen 51, a power switch 53 and a cooling fan 52. The power switch 53 is convenient for controlling the start and shut down of the entire fuel injection device. The touch screen 51 is electrically connected to the PLC system 44 so as to display various data in real time. The cooling fan 52 is convenient for dissipating heat inside the rack 5 to reduce the possibility of overheating.

[0038] Reference Figures 5 to 8A metering mechanism is provided between the metering pump 42 and the nozzle 41. The metering mechanism comprises a housing 1, a flow chamber 11 is provided in the housing 1, and an inlet 12 and an outlet 13 are also provided on the housing 1, and both the inlet 12 and the outlet 13 are communicated with the flow chamber 11. The inlet 12 is communicated with the outlet end of the metering pump 42, and the outlet 13 is communicated with the inlet end of the nozzle 41. A rotating rod 2 is rotatably connected to the housing 1, and a metering blade 21 is fixedly connected to the side wall of the rotating rod 2. There are a plurality of metering blades 21 arranged in a circumferential array along the rotating rod 2, and a metering chamber 22 is formed between adjacent metering blades 21 and the side wall of the flow chamber 11. A metering assembly 3 is provided on the housing 1, and the metering assembly 3 is connected to the rotating rod 2 and measures the rotation angle of the rotating rod 2.

[0039] During operation, the fluid enters the circulation chamber 11 through the inlet 12 and enters the metering chamber 22. When the metering chamber 22 is filled with fluid, the metering blade 21 is driven to rotate. When the metering chamber 22 filled with fluid is rotated to communicate with the outlet 13, the fluid flows out from the outlet 13. Then, the metering component 3 monitors the rotation angle of the rotating rod 2, and converts the volume of the metering chamber 22 into the flow rate of the fluid, so as to achieve accurate measurement of a small liquid flow rate. In this embodiment, the volume of each metering chamber 22 is 1 ml, and one rotation of the rotating rod 2 is 3 ml.

[0040] Specifically, the cross section of the metering blade 21 is triangular so that the metering blade 21 can be pushed by the fluid better. A first conical cavity 14 and a second conical cavity 15 are also provided in the housing 1. The large end of the first conical cavity 14 is connected to the inlet 12, and the small end is connected to the flow cavity 11. The large end of the second conical cavity 15 is connected to the outlet 13, and the small end is connected to the flow cavity 11.

[0041] The metering assembly 3 includes an identification member and a check member. The check member is disposed on the housing 1 and connected to the rotating rod 2 . The identification member is installed on the housing 1 to identify the rotation angle of the rotating rod 2 .

[0042] Specifically, the non-return member includes a ratchet 31 and a pawl 32. The ratchet 31 is coaxially fixedly connected to the rotating rod 2. The pawl 32 is rotatably connected to the housing 1 via a rotating shaft. The side wall array of the ratchet 31 is provided with a plurality of latch teeth 311 for contacting the pawl 32. A torsion spring 33 is sleeved on the rotating shaft to apply a torque to the pawl 32 so that the pawl 32 rotates toward the ratchet 31.

[0043] More specifically, a fixing rod 34 is connected to the housing 1 , a compression rod 312 is connected to the pawl 32 , one end of the torsion spring 33 abuts against a side of the fixing rod 34 toward the ratchet 31 , and the other end abuts against a side of the compression rod 312 away from the ratchet 31 .

[0044] Specifically, the identification element includes an induction sheet 35 and a sensor 36. The induction sheet 35 is mounted on the ratchet 31. The housing 1 is provided with a mounting hole 16. The sensor 36 is mounted in the mounting hole 16 so as to sense the induction sheet 35. The sensor 36 can be a photoelectric sensor. The housing 1 is also provided with an observation hole 17. The observation hole 17 is coaxially arranged with the mounting hole 16. The observation hole 17 and the mounting hole 16 are relatively arranged on both sides of the induction sheet 35. The sensor 36 is electrically connected to the PLC system 44 so that the PLC system 44 can control the speed of the servo motor 46, thereby achieving precise fuel injection.

[0045] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A fuel injection device with automatic quantitative function and two-way independent control, characterized in that: It includes an oil tank (4) for storing oil; A nozzle (41) for spraying oil; A metering pump (42), one end of the metering pump (42) is connected to the oil tank (4), and the other end of the metering pump (42) is connected to the nozzle (41); An air supply path (43) is connected to the nozzle (41) to supply high-pressure gas to the nozzle (41).

2. The fuel injection device with automatic quantitative function and two-way independent control according to claim 1 is characterized in that: The air supply circuit (43) is connected to a control air circuit (431) and an adjustable air circuit (432), and both the control air circuit (431) and the adjustable air circuit (432) are connected to the nozzle (41).

3. The fuel injection device with automatic quantitative function and two-way independent control according to claim 2 is characterized in that: The control gas circuit (431) is provided with a solenoid valve (433).

4. The fuel injection device with automatic quantitative function and two-way independent control according to claim 2 is characterized in that: The adjustable gas circuit (432) is provided with a pressure regulating valve (434) and a pressure gauge (435).

5. The fuel injection device with automatic quantitative function and two-way independent control as claimed in claim 1, characterized in that: The oil injection device further comprises a PLC system (44), a servo driver (45) and a servo motor (46); the PLC system (44) is electrically connected to the servo driver (45); the servo driver (45) is electrically connected to the servo motor (46); and the output end of the servo motor (46) is connected to a pump head of a metering pump (42).

6. The fuel injection device with automatic quantitative function and two-way independent control as claimed in claim 1, characterized in that: A metering mechanism is provided between the metering pump (42) and the nozzle (41).

7. A fuel injection device with automatic quantitative function and two-way independent control as claimed in claim 6, characterized in that: The measuring mechanism comprises A housing (1), wherein a circulation chamber (11) is provided in the housing (1), and an inlet (12) and an outlet (13) are also provided on the housing (1), wherein the inlet (12) and the outlet (13) are both in communication with the circulation chamber (11); A rotating rod (2), the rotating rod (2) being rotatably connected to the housing (1); Metering blades (21), the metering blades (21) are connected to the rotating rod (2), and there are a plurality of metering blades (21) arranged in an array along the circumference of the rotating rod (2), and a metering cavity (22) is formed between adjacent metering blades (21) and the side wall of the flow cavity (11); A metering component (3) is arranged on the housing (1), the metering component (3) is connected to the rotating rod (2) and measures the rotation angle of the rotating rod (2).

8. The fuel injection device with automatic quantitative function and two-way independent control as claimed in claim 7, characterized in that: The metering component (3) comprises an identification member and a check member, wherein the check member is arranged on the housing (1) and connected to the rotating rod (2), and the identification member is installed on the housing (1) to identify the rotation angle of the rotating rod (2).

9. The fuel injection device with automatic quantitative function and two-way independent control as claimed in claim 1, characterized in that: The non-return member comprises a ratchet (31) and a pawl (32), wherein the ratchet (31) is coaxially connected to the rotating rod (2), the pawl (32) is rotatably connected to the housing (1) via a rotating shaft, and a latching tooth (311) for contacting the pawl (32) is provided on the ratchet (31); A torsion spring (33) is sleeved on the rotating shaft to apply a torque to the pawl (32) so as to cause the pawl (32) to rotate toward the ratchet wheel (31); The housing (1) is connected to a fixing rod (34), the ratchet (32) is connected to a pressure rod (312), one end of the torsion spring (33) abuts against a side of the fixing rod (34) facing the ratchet (31), and the other end abuts against a side of the pressure rod (312) away from the ratchet (31).

10. The fuel injection device with automatic quantitative function and two-way independent control as claimed in claim 1, characterized in that: The identification element comprises an induction sheet (35) and a sensor (36); the induction sheet (35) is mounted on the ratchet (31); the sensor (36) is mounted on the housing (1); and the sensor (36) is electrically connected to the PLC system (44).

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