Automatic feeding device and method for shield tail grease production

Abstract

The present invention discloses an automatic feeding device and method for shield tail grease production, including: an air compressor and an air storage tank connected in sequence, the air compressor is used to provide an air source for the entire automatic feeding device; a bracket assembly, including a pressure reducing valve, a hydraulic cylinder, a sealing pressure plate and a barrel, the pressure reducing valve is used to reduce the pipeline air pressure to the working pressure of the hydraulic cylinder, the hydraulic cylinder is used to drive the sealing pressure plate to move downward in the barrel, and the barrel is used to hold raw materials; a rigid pipeline connected with a ball valve, a pneumatic ball valve and a one-way valve in sequence, the raw materials in the barrel enter the feed port of the extrusion pump along the rigid pipeline under the action of pressure; the extrusion pump is used to pump the raw materials into a stirring kettle with high pressure; the stirring kettle is used to stir the raw materials. The technical solution of the present invention solves the problems of unbalanced raw material ratio, unstable manual dumping, and difficulty in feeding raw materials in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of shield tail grease production, and in particular to an automatic feeding device and method for shield tail grease production. Background Art

[0002] With the development of industrial automation, in the production process of traditional shield tail grease, the raw materials are manually poured into the mixing tank, which can easily cause an imbalance in the raw material ratio and unsatisfactory use effect. In particular, the characteristics of each raw material are different, the precision is difficult to control, and personnel adjustment is frequent, resulting in a decrease in the yield of finished products, affecting production efficiency.

[0003] Therefore, it is extremely necessary to propose an automatic feeding device and method for shield tail grease production that is simple to operate, highly practical, and has a controllable feeding ratio in order to reduce costs and increase efficiency. Summary of the invention

[0004] The invention provides an automatic feeding device and method for shield tail grease production, so as to solve the problems of unbalanced raw material ratio, unstable manual dumping, difficulty in feeding raw materials and the like in the prior art.

[0005] In order to solve the above problems, the present invention is implemented by the following technical solutions:

[0006] In a first aspect, the present invention provides an automatic feeding device for shield tail grease production, comprising:

[0007] An air compressor and an air storage tank connected in sequence, wherein the air compressor is used to provide an air source for the entire automatic feeding device;

[0008] The support assembly includes a pressure reducing valve, a hydraulic cylinder, a sealing platen and a barrel, wherein the pressure reducing valve is used to reduce the pipeline air pressure to the working pressure of the hydraulic cylinder, the hydraulic cylinder is used to drive the sealing platen to move downward in the barrel, and the barrel is used to hold raw materials;

[0009] A rigid pipeline is connected with a ball valve, a pneumatic ball valve and a one-way valve in sequence, and the raw materials in the barrel enter the feed port of the extrusion pump along the rigid pipeline under the action of pressure;

[0010] The extrusion pump is used to pump the raw materials into the stirring tank under high pressure;

[0011] The stirring tank is used to stir the raw materials.

[0012] Optionally, the automatic feeding device further comprises:

[0013] A wire sensor disposed on the sealing platen;

[0014] A weighing sensor disposed at the bottom of the barrel;

[0015] A flow sensor is arranged at the discharge port of the extrusion pump.

[0016] Optionally, the automatic feeding device further comprises:

[0017] PLC controller and human-machine interface;

[0018] The wire sensor, the weighing sensor and the flow sensor transmit feedback signals to the PLC controller in real time. The PLC controller monitors the parameter ratio of the raw materials in real time and feeds back to the human-computer interaction interface.

[0019] Optionally, the PLC controller is provided with a human-machine interface unit, which communicates via industrial Ethernet to achieve human-machine interaction, and the ratio requirements of the raw materials are set through a display box of the human-machine interaction interface.

[0020] Optionally, the internal variables of the human-machine interaction interface are linked to the points of the PLC controller to control the start control, stop control, and forced discharge control of automatic feeding.

[0021] Optionally, the PLC controller controls the frequency converter of the extrusion pump, controls the speed of the extrusion pump by set parameters, and drives the pump body of the extrusion pump through a reducer to transport the raw materials into the mixing tank, compares the monitored parameters with the set parameters, adjusts the frequency converter motor parameters, and realizes constant control of the raw material feeding speed.

[0022] Optionally, when the feedback value of the weighing sensor or the wire sensor does not meet the program setting value, an alarm signal is generated, the feeding is stopped and the barrel changing mode is switched.

[0023] Optionally, it also includes:

[0024] A solenoid valve is provided between the gas storage tank and the pressure reducing valve, and is used for switching a working mode or a barrel changing mode.

[0025] Optionally, it also includes:

[0026] A vertical screw loader is provided with a weighing sensor below the feed port of the vertical screw loader. The vertical screw loader is driven by a screw motor to draw the raw materials from the feed port into the hopper at the top of the mixing kettle. The electrically controlled pneumatic gate valve at the bottom of the hopper is used to control the feed flow rate entering the mixing kettle. A drain port is provided at the bottom of the hopper, which is opened when too much material is accumulated in the hopper to clean the inside of the hopper.

[0027] In a second aspect, the present invention provides an automatic feeding method for shield tail grease production, which is implemented by using the above-mentioned automatic feeding device for shield tail grease production, comprising:

[0028] Start the device and manually press the loading button;

[0029] Raw materials begin to be loaded;

[0030] The sensor monitors in real time whether the raw material ratio meets the requirements; if so, the raw material loading is completed; if not, it determines whether the barrel needs to be changed. If not, the loading continues. If so, it enters the barrel changing mode and continues to load after the barrel changing is completed. If the barrel changing fails, the material is forced to be discharged through the manual discharge port.

[0031] Compared with the prior art, the technical solution of the present invention has at least the following beneficial effects:

[0032] The automatic feeding device for shield tail grease production proposed by the present invention provides an air source for the entire automatic feeding device by setting the air compressor and the air storage tank. The pressure reducing valve is used to reduce the pipeline air pressure to the working pressure of the hydraulic cylinder. The hydraulic cylinder is used to drive the sealing pressure plate to move downward in the barrel. The raw materials in the barrel enter the feed port of the extrusion pump along the rigid pipeline under the action of pressure. The extrusion pump is used to pump the raw materials into the stirring kettle under high pressure. A PLC controller and a sensor are also provided to realize the automatic feeding precision control of raw materials, monitor the feeding ratio parameters in real time, automatically pump low-fluidity grease materials, and perform human-computer interaction on the raw material parameters. During use, personnel control and material input are reduced to achieve cost reduction and efficiency improvement. The PLC controller also controls the frequency converter of the extrusion pump, and the extrusion pump evenly feeds according to the internal operating parameters of the frequency converter. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0034] Figure 1 This is a schematic structural diagram of an automatic feeding device for shield tail grease production according to an embodiment of the present invention;

[0035] Figure 2 It is a schematic diagram of the framework of a control system of an automatic feeding device for shield tail grease production according to an embodiment of the present invention;

[0036] Figure 3 The present invention is a schematic flow chart of an automatic feeding method for shield tail grease production according to an embodiment of the present invention.

[0037] Description of reference numerals:

[0038] 100-air compressor; 200-gas tank;

[0039] 300- bracket assembly; 310- three-position four-way solenoid valve; 320- pressure reducing valve; 330- sealing pressure plate; 340- barrel;

[0040] 410-pneumatic ball valve; 420-check valve;

[0041] 500-squeeze pump;

[0042] 600-mixing kettle; 700-vertical screw feeder; 800-hopper.

[0043] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0044] The following is a further detailed description of the automatic feeding device and method for shield tail grease production proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the accompanying drawings adopt a very simplified form and all use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. In order to make the purposes, features and advantages of the present invention more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated by the accompanying drawings of this specification are only used to match the contents disclosed in the specification, so that people familiar with this technology can understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present invention.

[0045] See also Figure 1 , Figure 1 An automatic feeding device for shield tail grease production provided in one embodiment of the present invention comprises: an air compressor 100 and an air storage tank 200 connected in sequence, the air compressor 100 is used to provide an air source for the entire automatic feeding device; a bracket assembly 300, comprising a pressure reducing valve 320, a hydraulic cylinder, a sealing pressure plate 330 and a barrel 340, the pressure reducing valve 320 is used to reduce the pipeline air pressure to the working pressure of the hydraulic cylinder, the hydraulic cylinder is used to drive the sealing pressure plate 330 to move downward in the barrel 340, and the barrel 340 is used to hold raw materials; a rigid pipeline connected with a ball valve, a pneumatic ball valve 410 and a one-way valve 420 in sequence, the raw materials in the barrel 340 enter the feed port of the extrusion pump 500 along the rigid pipeline under the action of pressure; the extrusion pump 500 is used to pump the raw materials into a mixing kettle 600 with high pressure; the mixing kettle 600 is used to stir the raw materials.

[0046] The automatic feeding device for shield tail grease production provided in this embodiment solves the problems of unbalanced raw material ratio, unstable manual dumping, and difficulty in feeding raw materials in the prior art.

[0047] Specifically, the automatic feeding device for shield tail grease production provided in this embodiment, in working mode, reduces the gas pressure in the pipe to the working pressure through the pressure reducing valve 320, drives the sealing pressure plate 330 on the upper part of the bracket assembly to move downward, so that the raw materials in the barrel are pressed into the conveying pipeline from the pipe mouth, and the raw material feeding speed is controlled by the pneumatic ball valve 410, flows through the pipeline one-way valve 420, enters the feed port of the extrusion pump 500, and is transported to the stirring kettle 600 for stirring for a second time.

[0048] Specifically, in some embodiments, the parameter setting adopts the combined control form of PLC program control and HMI interface input. The ratio range is set through the PLC program standard block, and each numerical parameter is collected and fed back to the detection module for program operation. The PLC variable is connected to the human-computer interaction interface display box for real-time display and record storage. The human-computer interaction interface display box sets the parameters and sets the authority password. The professional production personnel set the ratio of each raw material and the mixing time, and the extrusion pump 500 is used to achieve high-pressure pumping.

[0049] Specifically, in some embodiments, the PLC controller is provided with a human-machine interface unit, which communicates via industrial Ethernet to achieve human-machine interaction. The human-machine interaction interface can realize alarm functions, observe the feeding parameters of each raw material, and professional production personnel can set raw material ratio requirements through the human-machine interaction interface display box.

[0050] Specifically, in some embodiments, the internal variables of the human-computer interaction interface are point-linked with the PLC controller, which can control automatic feeding start control, stop control, forced discharge control, raw material parameter monitoring, real-time data recording, feeding alarm, etc.

[0051] Specifically, see Figure 2 All raw materials are equipped with wire sensors, weighing sensors, flow sensors, etc., which transmit feedback signals to the PLC in real time, monitor the raw material parameter ratio in real time, and feed back to the human-computer interaction interface.

[0052] Specifically, the PLC controller controls the frequency converter of the extrusion pump 500, controls the speed of the extrusion pump by the set parameters, and drives the pump body of the extrusion pump 500 through the reducer to transport the raw materials into the mixing tank. The monitoring parameters are compared with the set parameters, and the frequency conversion motor parameters are adjusted to achieve constant control of the raw material feeding speed.

[0053] In some embodiments, when the automatic loading device is working, the raw materials are placed in the bracket assembly 300, and the required raw material ratio is set through the human-computer interaction interface. The air compressor 100 and the start-up loading button are started through the human-machine interface to fill the gas storage tank 200 and the gas pipeline. After starting, the three-position four-way solenoid valve 310 is energized, and the pressure is reduced through the pressure reducing valve 320 to provide the required working pressure for the pipeline. The sealing pressure plate 330 is driven downward by the two-way hydraulic cylinder, and the upper exhaust valve of the sealing pressure plate 330 is opened at the same time. When there is no gas discharged, the sealing pressure plate 330 presses the raw materials in the barrel, closes the exhaust valve, and the raw materials in the barrel flow through the ball valve, the pneumatic ball valve 410, and the one-way valve 420 along the rigid pipeline under the action of pressure to enter the feed port of the extrusion pump. The PLC controller controls the frequency converter of the extrusion pump 500, and the extrusion pump 500 drives the reducer according to the internal operating parameters of the frequency converter to evenly load the materials. The loading speed is monitored in real time by the pump outlet flow meter, so that the raw materials are transported to the mixing kettle 600 for mixing by the shield tail grease mixer, so as to realize automatic loading of various grease raw materials.

[0054] In some embodiments, epoxy soybean oil is added to the barrel through an oil metering gun, and the transparent tube, liquid level sensor and weighing sensor on the wall of the liquid storage tank are observed, and the detected values ​​are fed back to the PLC. The epoxy soybean oil is sucked in and discharged by a diaphragm pump, and the gas flow in the pipe is adjusted by a pneumatic pressure reducing valve, so that the epoxy soybean oil flows into the stirring tank through the conveying pipeline for stirring. The internal feedback parameters of the PLC are linked to the human-computer interaction interface to monitor the feeding flow in real time. If the feedback value does not reach the preset parameter, the human-computer interaction interface will alarm and display, prohibiting automatic feeding until the feedback parameter meets the program setting parameter, and then automatic feeding can be performed.

[0055] In some embodiments, specifically, a wire sensor is provided on the upper part of the sealing platen 330, and a weighing sensor is installed at the bottom of the barrel body of the barrel 340. The sensor feedback value is fed back to the PLC for data calculation. When the sensor feedback value does not meet the program setting value, an alarm signal is generated, and the feedback value is saved to the alarm interface. The mark block on the interface flashes, the material loading is stopped according to the set time, and the barrel change mode is activated.

[0056] In some embodiments, if the material is in the barrel change mode, manual forced material discharge can be performed. It is necessary to manually activate the forced material discharge button on the human-machine interface and enter the management password to start the forced material discharge program to monitor the raw material data. Pour the raw materials into the feed port above the weighing sensor, and the vertical screw feeder 700 is driven by the screw motor, and pumped into the upper hopper 800 of the stirring kettle through the pipeline. The discharge port gate is opened, and the feed flow rate is controlled by the electric-controlled pneumatic gate valve at the bottom of the hopper 800 for stirring. If there is too much material accumulated in the hopper, close the discharge port gate in time, open the drainage port at the bottom of the hopper, and clean the inside of the hopper.

[0057] In some embodiments, specifically, the PLC controller is mainly composed of a CPU module, an AI module, a DI module, a DO module, and a communication module. The analog quantity is fed back to the control system to control the raw material ratio; the digital quantity input module identifies the raw material loading preparation signal and the start signal, and the frequency conversion motor adjusts the speed of the pump to transport the raw materials to the pipeline.

[0058] In some embodiments, specifically, the PLC controller is provided with a human-machine interface unit, which is mainly composed of a PC, a touch screen, an operation panel, etc., and performs configuration communication with the main system through industrial Ethernet. By graphically designing the system interface of each raw material of the shield tail grease, the on-site production personnel can interact with the system more intuitively. On-site production personnel can perform feeding control, parameter input adjustment, real-time monitoring of raw material ratio parameters, historical data storage of parameters, ratio data analysis and optimization and other control functions on the human-machine interaction interface.

[0059] The parameters of the automatic feeding device described in this embodiment have been internally adjusted, and it has the function of automatically adjusting the flow rate of raw materials, achieving control accuracy, and ensuring a constant raw material feeding speed, thereby reducing costs, increasing efficiency, and reducing personnel control.

[0060] In some embodiments, this embodiment provides an automatic feeding method for shield tail grease production, which is implemented by using any of the above-mentioned automatic feeding devices for shield tail grease production, see Figure 3 , Figure 3 Taking lithium-based grease as an example, a flow chart of an automatic feeding method for shield tail grease production is shown, including:

[0061] Start the unit and manually press the load button.

[0062] Raw materials begin to be loaded.

[0063] The sensor monitors in real time whether the raw material ratio meets the requirements; if it does, the raw material loading is completed; if not, it determines whether the barrel needs to be changed. If not, the loading continues. If the barrel needs to be changed, it enters the barrel changing mode and continues to load the material after the barrel change is completed. If the barrel change fails, the material is forced to be discharged through the manual discharge port.

[0064] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0065] In the description of the present invention, it should be understood that the terms "center", "height", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "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 limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0066] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0068] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. An automatic feeding device for shield tail grease production, characterized in that: include: An air compressor and an air storage tank connected in sequence, wherein the air compressor is used to provide an air source for the entire automatic feeding device; The support assembly includes a pressure reducing valve, a hydraulic cylinder, a sealing platen and a barrel, wherein the pressure reducing valve is used to reduce the pipeline air pressure to the working pressure of the hydraulic cylinder, the hydraulic cylinder is used to drive the sealing platen to move downward in the barrel, and the barrel is used to hold raw materials; A rigid pipeline is connected with a ball valve, a pneumatic ball valve and a one-way valve in sequence, and the raw materials in the barrel enter the feed port of the extrusion pump along the rigid pipeline under the action of pressure; The extrusion pump is used to pump the raw materials into the stirring tank under high pressure; The stirring tank is used to stir the raw materials.

2. The automatic feeding device for shield tail grease production according to claim 1 is characterized in that: Also includes: A wire sensor disposed on the sealing platen; A weighing sensor disposed at the bottom of the barrel; A flow sensor is arranged at the discharge port of the extrusion pump.

3. The automatic feeding device for shield tail grease production according to claim 2 is characterized in that: Also includes: PLC controller and human-machine interface; The wire sensor, the weighing sensor and the flow sensor transmit feedback signals to the PLC controller in real time. The PLC controller monitors the parameter ratio of the raw materials in real time and feeds back to the human-computer interaction interface.

4. The automatic feeding device for shield tail grease production according to claim 3 is characterized in that: The PLC controller is provided with a human-machine interface unit, which communicates via industrial Ethernet to achieve human-machine interaction, and the ratio requirements of raw materials are set through the display box of the human-machine interaction interface.

5. The automatic feeding device for shield tail grease production according to claim 3 is characterized in that: The internal variables of the human-machine interaction interface are linked to the points of the PLC controller to control the start control, stop control and forced discharge control of automatic feeding.

6. The automatic feeding device for shield tail grease production according to claim 3 is characterized in that: The PLC controller controls the frequency converter of the extrusion pump, controls the speed of the extrusion pump by set parameters, and drives the pump body of the extrusion pump through a reducer to transport the raw materials into the mixing tank, compares the monitored parameters with the set parameters, adjusts the frequency converter motor parameters, and realizes constant control of the raw material feeding speed.

7. The automatic feeding device for shield tail grease production according to claim 3 is characterized in that: When the feedback value of the weighing sensor or the wire sensor does not meet the program setting value, an alarm signal is generated, the feeding is stopped and the barrel changing mode is switched.

8. The automatic feeding device for shield tail grease production according to claim 3 is characterized in that: Also includes: A solenoid valve is provided between the gas storage tank and the pressure reducing valve, and is used for switching a working mode or a barrel changing mode.

9. The automatic feeding device for shield tail grease production according to claim 3, characterized in that: Also includes: A vertical screw loader is provided with a weighing sensor below the feed port of the vertical screw loader. The vertical screw loader is driven by a screw motor to draw the raw materials from the feed port into the hopper at the top of the mixing kettle. The electrically controlled pneumatic gate valve at the bottom of the hopper is used to control the feed flow rate entering the mixing kettle. A drain port is provided at the bottom of the hopper, which is used to open when too much material is accumulated in the hopper to clean the inside of the hopper.

10. An automatic feeding method for shield tail grease production, implemented by the automatic feeding device for shield tail grease production as claimed in any one of claims 1 to 9, characterized in that: include: Start the device and manually press the loading button; Raw materials begin to be loaded; The sensor monitors in real time whether the raw material ratio meets the requirements; if so, the raw material loading is completed; If not, determine whether it is necessary to change the barrel. If not, continue to load the material. If so, enter the barrel change mode and continue to load the material after the barrel change is completed. If the barrel change fails, force the material to be discharged through the manual discharge port.

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