CN119408201B - Glue tank level measurement and control device for continuous production of sheet molding compounds - Google Patents
Glue tank level measurement and control device for continuous production of sheet molding compounds Download PDFInfo
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- CN119408201B CN119408201B CN202510012299.0A CN202510012299A CN119408201B CN 119408201 B CN119408201 B CN 119408201B CN 202510012299 A CN202510012299 A CN 202510012299A CN 119408201 B CN119408201 B CN 119408201B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/546—Measures for feeding or distributing the matrix material in the reinforcing structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
- B29C31/06—Feeding of the material to be moulded, e.g. into a mould cavity in measured doses, e.g. by weighting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
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Abstract
The invention discloses a glue tank liquid level measurement control device for continuous production of sheet molding compounds, which is applied to the technical field of sheet molding compound production and comprises a first slide rail and a first air cylinder, wherein the first air cylinder is provided with two groups of slide rails and two first air cylinders, the first air cylinder is respectively fixed on the front side and the rear side of a fixed plate, the output end of the first air cylinder is fixedly provided with a first connecting block, one side of the first connecting block is fixedly provided with a marking block, each group of baffle plates is fixedly provided with a visual unit, a flow limiting assembly is arranged on a glue guiding pipeline and is used for controlling the flowing speed of resin glue solution, each group of mounting strips is fixedly provided with a second slide rail, the second connecting block is in sliding connection with the second slide rail, and a limiting plate is fixed between the second connecting blocks, and the limiting plate is positioned at the outlet of a glue guiding pipeline.
Description
Technical Field
The invention relates to the technical field of sheet molding compound production, in particular to a glue groove liquid level measurement control device for continuous production of sheet molding compound.
Background
Sheet molding compound (Sheet molding compound) abbreviated as SMC is a sheet molding compound made by impregnating fibers with resin paste or covering the two sides of chopped fiber mat with a polyhexene film, and has the advantages of electric insulation, heat resistance, flame retardance, good mechanical strength and the like, light weight, easy and flexible engineering design and the like, and the mechanical property of the sheet molding compound can be comparable with that of partial metal materials.
As the degree of automation of molding increases, consistency of SMC singles, which refers to the weight of SMC per unit area, is required to increase. One important factor affecting the singleness is that the amount of resin paste scraped is unstable for various reasons such as viscosity, temperature of the resin paste, and the level of the resin paste in the paste tank.
The patent of the invention with the publication number of CN110726371A discloses a SMC sheet thickness detection device, wherein the thickness of the sheet is measured to adjust the single weight of the SMC sheet, hysteresis is provided, the thickness can be detected only after the sheet is soaked, the single weight of the sheet cannot be controlled, the thickness of the sheet is different, and the problems of different glass fiber stacking thicknesses, bubbles generated by glass fiber stacking and the like affect the detection value. The invention patent of publication No. CN109454896B discloses a control method of mass flow in continuous production of fluid materials, wherein the gap of a scraper is adjusted by detecting the liquid level of a rubber groove, when the flow entering the rubber groove is reduced, the amount entering the rubber groove is smaller than the amount scraped, the liquid level of the rubber groove is reduced, and at the moment, the scraper can increase the gap between the scraper and a film, thereby affecting singleness and even causing SMC material shortage, and the production line is stopped to generate unnecessary waste.
In this regard, we have found that the single-load stability of the SMC sheet is improved by 50% over the existing single-load stability by controlling the liquid level in the glue tank within a certain range. Therefore, it is necessary to provide a glue tank liquid level measurement control device for continuous production of molding compound, which can precisely control the scraped-out amount of resin paste in real time in the continuous production of SMC through an automatic adjusting system, thereby precisely controlling the single weight of the SMC sheet without hysteresis and preventing material breakage.
Disclosure of Invention
The invention aims to provide a glue groove liquid level measurement control device for continuous production of sheet molding compound, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme that side plates, two groups of baffle plates, a scraper, a glue guide pipeline and a flow control system, wherein resin glue in the glue guide pipeline flows out from the bottom of the scraper after falling into a glue groove, the bottom of the glue groove is not full of the resin glue, an arc arch with a certain width is formed in the glue groove, a fixed plate is arranged on the outer side of each group of side plates, a marking assembly is arranged on each group of fixed plates, the marking assembly conveniently limits the resin glue to form the arc width, and the method comprises the following steps:
The marking assembly comprises a first sliding rail and a first air cylinder which are fixed on a fixed plate, wherein the first air cylinder is provided with two groups and is respectively fixed on the front side and the rear side of the fixed plate, the output end of the first air cylinder is fixedly provided with a first connecting block, one side of the first connecting block is fixedly provided with a marking block, and the marking block is in sliding connection with the first sliding rail;
A visual unit is hung on the glue groove, and the marking block is provided with colors;
The device is characterized in that a flow limiting component is arranged on the glue guiding pipeline and used for controlling the flowing-down speed of the resin glue solution, the flow limiting component comprises two groups of mounting strips, each group of mounting strips is fixed on two sides of the glue guiding pipeline, one side of each group of mounting strips is fixedly provided with a second cylinder, the output end of the second cylinder is fixedly provided with a second connecting block, each group of mounting strips is fixedly provided with a second sliding rail, the second connecting block is in sliding connection with the second sliding rail, a limiting plate is fixed between the second connecting blocks, and the limiting plate is positioned at the outlet of the glue guiding pipeline.
According to the technical scheme, the two groups of baffles are fixed on the left side and the right side of the side plates, the scrapers are fixed on the other sides of the two groups of side plates, the glue grooves are formed through the side plates, the two groups of baffles and the scrapers, the bottom of each glue groove is provided with the bottom plate, a first gap is formed between the scrapers and the bottom plate, the bearing table is arranged below the bottom plate, and a second gap is formed between the bearing table and the bottom plate.
According to the technical scheme, one end pipeline of the glue guide pipeline is connected with the first resin glue solution source, the first liquid conveying pump is connected to the glue guide pipeline and the first resin glue solution source, the standby pipe is connected to the glue guide pipeline and the first resin glue solution source, the second liquid conveying pump is connected to the standby pipe, and the second resin glue solution source is connected to the other end of the standby pipe.
According to the technical scheme, the glue tank liquid level measurement control device for continuous production of the sheet molding compound further comprises a flow control system, the flow control system comprises a vision acquisition module and a processing module, the vision acquisition module comprises an image receiving sub-module, a logic judging sub-module and a time recording sub-module, the image receiving sub-module is electrically connected with a vision unit and is used for identifying the arc width formed by the resin glue solution, the time recording sub-module is used for judging the arc width time formed by the resin glue solution, and the logic judging sub-module is used for analyzing the outflow speed of the resin glue solution from the glue guide pipeline.
According to the technical scheme, the logic judging submodule comprises a position identifying unit.
According to the technical scheme, the processing module comprises a lifting sub-module, an alarming sub-module and an adjusting sub-module, wherein the lifting sub-module is electrically connected with the second cylinder and used for controlling the limiting plate to move up and down at the outlet of the rubber guiding pipeline, the alarming sub-module plays an alarming role, the adjusting sub-module is electrically connected with the first liquid conveying pump and the second liquid conveying pump, and the adjusting sub-module is used for adjusting the state of resin glue liquid entering the rubber guiding pipeline.
According to the technical scheme, the flow control system comprises the following specific operation steps:
firstly, before production and starting, moving a marking block to a proper position through a marking assembly according to the material requirement of a product, so as to conveniently identify whether the resin glue solution is in the marking position or not;
step two, starting a liquid conveying pump I to convey the resin glue solution at the first position of the resin glue solution source onto a glue guide pipeline and then flow into the glue groove, and starting an external winding assembly to drive the film to move at a high speed in a gap II;
Step three, recognizing the width of the resin glue solution in the glue tank to form an arc shape through a visual unit, judging the flow of the resin glue solution entering the glue tank, controlling the amount entering the glue tank through a current limiting assembly, controlling the stable range of the resin glue solution in the glue tank, accurately controlling the single weight of the SMC sheet, having no hysteresis and being capable of preventing material breakage;
And fourthly, when the resin glue liquid amount in the glue groove is controlled within a stable range, judging whether the resin glue liquid is precipitated and solidified in the process of flowing out of the glue guiding pipeline or not by judging the time for stabilizing the resin glue liquid amount in real time.
Compared with the prior art, the invention has the beneficial effects that the flow limiting component and the camera are arranged, so that the quantity of the resin glue solution entering the glue tank can be regulated in real time, the normal state of the resin glue solution in the glue tank is always ensured, the single weight of the SMC sheet is accurately controlled, the hysteresis problem in the prior art is overcome, and the breakage can be prevented;
by arranging the second resin glue solution source, when the state of the resin glue solution in the first resin glue solution source is poor, the resin glue solution in the first resin glue solution source is suspended and enters the glue guide pipeline, so that the resin glue solution in the second resin glue solution source enters the glue guide pipeline, and the quality of the resin glue solution is improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic side view of the glue tank of the present invention;
FIG. 3 is an enlarged partial schematic view of area A of FIG. 1 in accordance with the present invention;
FIG. 4 is an enlarged partial schematic view of the area B of FIG. 1 in accordance with the present invention;
FIG. 5 is a schematic diagram of a flow control system of the present invention;
FIG. 6 is a schematic diagram of the state of the resin glue solution of the present invention;
FIG. 7 is a schematic diagram of a marker block state of the present invention;
FIG. 8 is a schematic diagram of a pipeline of the present invention;
In the figure, 1, a side plate; 2, a rubber guide pipeline, 3, a baffle plate, 4, a visual unit, 5, a scraper, 6, a rubber groove, 7, a fixing plate, 8, a first cylinder, 9, a marking block, 10, a first slide rail, 11, a mounting strip, 12, a second cylinder, 13, a limiting plate, 14, a second slide rail, 15, a second connecting block, 16, a first connecting block, 17, a first gap, 18, a bearing table, 19, a bottom plate, 20, a first liquid conveying pump, 21, a first resin rubber solution source, 22, a second resin rubber solution source, 23, a second liquid conveying pump, 24, a standby pipe, 25 and a second gap.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, the invention provides a glue tank liquid level measurement control device for continuous production of sheet molding compound, which comprises a side plate 1, two groups of baffle plates 3, a scraper 5 and a glue guiding pipeline 2, wherein the two groups of baffle plates 3 are fixed on the left side and the right side of the side plate 1, the scraper 5 is fixed on the other side of the two groups of side plates 1, a glue tank 6 is formed by the side plate 1, the two groups of baffle plates 3 and the scraper 5, a bottom plate 19 is arranged at the bottom of the glue tank 6, a gap I17 is formed between the scraper 5 and the bottom plate 19, a bearing table 18 is arranged below the bottom plate 19, a gap II 25 is formed between the bearing table 18 and the bottom plate 19, a film passes through the gap II 25, so that the film is attached to the bearing table 18, the film is controlled to move on the bearing table 18 by an external winding assembly, the glue guiding pipeline 2 guides the resin glue into the glue tank 6, the resin glue solution flows from the gap I17 to the surface of the film, and the resin glue solution in the glue tank 6 is pulled into an arc arch shape (as shown in fig. 6) due to the fact that the film is pulled by the external winding assembly to move at high speed, the whole time, the resin glue solution is not full of the bottom of the glue tank 6, and the glue tank is prevented from being frozen, and the glue tank is not affected by the glue tank is not to be solidified.
A visual unit 4 is hung on the glue groove 6, and the visual unit 4 can be a camera.
One end pipeline of the glue guiding pipeline 2 is connected with a first resin glue solution source 21, the pipelines of the glue guiding pipeline 2 and the first resin glue solution source 21 are connected with a first liquid conveying pump 20, the first liquid conveying pump 20 is started to convey resin glue solution at the first resin glue solution source 21 to the glue guiding pipeline 2, a standby pipe 24 is connected to the pipelines of the glue guiding pipeline 2 and the first resin glue solution source 21, a second liquid conveying pump 23 is connected to the standby pipe 24, the other end of the standby pipe 24 is connected with a second resin glue solution source 22, and the second resin glue solution source 22 is used for standby.
The outside of every group curb plate 1 is provided with fixed plate 7, be provided with mark subassembly on every group fixed plate 7, mark subassembly conveniently is limited the resin glue solution and is formed radian width, mark subassembly is including fixing slide rail one 10 and first cylinder 8 on fixed plate 7, first cylinder 8 is provided with two sets of, be fixed in both sides around fixed plate 7 respectively, the output of first cylinder 8 is fixed with connecting block one 16, one side of connecting block one 16 is fixed with mark piece 9, mark piece 9 is sliding connection with slide rail one 10, drive mark piece 9 through starting first cylinder 8 flexible and slide on fixed plate 7, thereby confirm the position of two sets of mark pieces 9, and then confirm the distance between two sets of mark pieces 9.
The marking block 9 is provided with a color.
The glue guiding pipeline 2 is provided with a current limiting component for controlling the flowing-down speed of the resin glue solution, the current limiting component comprises two groups of mounting strips 11, each group of mounting strips 11 is fixed on two sides of the glue guiding pipeline 2, one side of each group of mounting strips 11 is fixed with a second cylinder 12, the output end of the second cylinder 12 is fixed with a second connecting block 15, each group of mounting strips 11 is fixed with a second slide rail 14, the second connecting block 15 is in sliding connection with the second slide rail 14, a limiting plate 13 is fixed between the two groups of second connecting blocks 15, the limiting plate 13 is positioned at the outlet of the glue guiding pipeline 2, and the limiting plate 13 is driven to move up and down at the outlet of the glue guiding pipeline 2 by controlling the expansion and contraction of the second cylinder 12, so that the size of the outlet of the glue guiding pipeline 2 is controlled, and the flowing-out amount of the resin glue solution is convenient to control.
The device comprises a vision collecting module, a logic judging module and a time recording module, wherein the vision collecting module comprises an image receiving sub-module, the logic judging sub-module and the time recording sub-module, the image receiving sub-module is electrically connected with the vision unit 4 and is used for identifying the width of an arc formed by resin glue solution, the time recording sub-module is used for judging the width time of the arc formed by the resin glue solution, and the logic judging sub-module is used for analyzing the outflow speed of the resin glue solution from the glue guiding pipeline 2;
the logic judging submodule comprises a position identifying unit;
the processing module comprises a lifting sub-module, an alarming sub-module and an adjusting sub-module, wherein the lifting sub-module is electrically connected with the second air cylinder 12 and used for controlling the limiting plate 13 to move up and down at the outlet of the rubber guiding pipeline 2, the alarming sub-module plays an alarming role, the adjusting sub-module is electrically connected with the first liquid conveying pump 20 and the second liquid conveying pump 23, and the adjusting sub-module is used for adjusting the state of resin glue liquid entering the rubber guiding pipeline 2.
The flow control system comprises the following specific operation steps:
firstly, before production and starting, a marking block 9 is moved to a proper position through a marking assembly according to the material requirement of a product, so that whether the resin glue solution is in the marking position or not can be conveniently identified;
Specifically, the first cylinder 8 is started to stretch and retract to drive the marking blocks 9 to slide on the fixing plate 7, so that the positions of the two groups of marking blocks 9 are determined, and the distance between the two groups of marking blocks 9 is determined.
Step two, starting a liquid conveying pump 20 to convey the resin glue solution at a first resin glue solution source 21 to a glue guide pipeline 2 and then to flow into a glue groove 6, and starting an external winding assembly to drive a film to move in a second gap 25 at high speed;
Step three, recognizing the width of the resin glue solution in the glue tank 6, which is pulled into an arc shape, through the visual unit 4, judging the flow of the resin glue solution entering the glue tank 6, controlling the amount entering the glue tank 6 through the current limiting component, controlling the stable range of the resin glue solution in the glue tank 6, accurately controlling the single weight of the SMC sheet, having no hysteresis, and being capable of preventing material breakage;
And step four, when the resin glue liquid amount in the glue groove 6 is controlled to be in a stable range, judging the time for stabilizing the resin glue liquid amount in real time to judge whether the resin glue liquid is precipitated and solidified in the process of flowing out of the glue guide pipeline 2.
The third step comprises the following specific operation steps:
step three-a, analyzing the distance between the two groups of marking blocks 9, and judging the resin glue amount in the glue groove 6, wherein the distance between the two groups of marking blocks 9 is set to an arc-shaped boundary line formed by the resin glue solution;
Specifically, the distance from the front group of marking blocks 9 to the edge of the fixing plate 7 is set as in the logic judgment sub-module The distance from the rear group of marking blocks 9 to the edge of the fixed plate 7 is set as(As shown in FIG. 7), the boundary line of the arc formed by photographing the resin glue solution by the vision unit 4 is locatedAndTransmitting signals to an image receiving sub-module, and analyzing the arc boundary line and the arc boundary line of the resin glue solution in real time according to a position identification unit in the logic judging sub-moduleAndThe formula of calculation is:, where L is the constant distance between the two sets of marker blocks 9, Is the distance between the arc-shaped boundary line of the resin glue solution and the edge of the fixed plate 7,Is the ratio of the distance between the arc-shaped boundary line of the resin glue solution and the edge of the fixed plate 7 to the constant distance between the two groups of marking blocks 9, whenWhen the boundary line of the resin glue solution arc is close to the front mark block 9, the resin glue solution amount in the glue tank 6 is large, and whenWhen the boundary line indicating the arc shape of the resin glue solution is close to the rear marking block 9, the resin glue solution amount in the glue tank 6 is small, and whenIn this case, the resin glue solution in the glue tank 6 is just described.
Step three-b, controlling the movement of the flow limiting assembly according to the amount of the resin glue solution in the glue tank 6, controlling the size of the outlet of the glue guide pipeline 2, controlling the outflow amount of the resin glue solution, and ensuring that the amount of the resin glue solution in the glue tank 6 maintains a normal state;
Specifically, when the amount of the resin glue in the glue tank 6 is large, signals are transmitted to the lifting submodule, the limiting plate 13 is controlled to descend, so that the outlet of the glue guide pipeline 2 is minimized, the amount of the resin glue flowing out is reduced, when the amount of the resin glue in the glue tank 6 is small, the limiting plate 13 is controlled to be lifted to control the outlet of the glue guide pipeline 2 to be medium, the amount of the resin glue flowing out is increased, the amount of the resin glue in the glue tank 6 can be regulated in real time through the step, the resin glue in the glue tank 6 is always ensured to maintain normal state, the single weight of the SMC sheet is accurately controlled, the problem of hysteresis in the prior art is solved, and the breakage can be prevented.
It should be noted that the levels of the outlet of the conduit 2 are set to be high, medium and low, the high level being the maximum outlet of the conduit 2, the medium level being the medium outlet of the conduit 2, and the low level being the minimum outlet of the conduit 2.
The fourth step also comprises the following specific steps:
Step four-a, starting a time recording sub-module to start timing when the resin glue solution in the glue tank 6 maintains a normal state, and stopping timing until the resin glue solution in the glue tank 6 is abnormal, so as to judge the flowing-down speed of the resin glue solution;
specifically, the operator sets the normal to abnormal normal time of the resin glue solution as T in the time recording sub-module, and starts to count time in the time recording sub-module when the resin glue solution in the glue tank 6 maintains the normal state, and sets the time as The timing is finished until the resin glue amount in the glue groove 6 is abnormal, and the set time isThe calculation formula of the speed of the resin glue solution flowing down is as follows: Wherein T is the time from normal to abnormal real-time detection of the resin glue solution, when T is more than T, the speed of the resin glue solution flowing down is normal, and when T is less than T, the speed of the resin glue solution flowing down is slow, and the precipitation solidification of the resin glue solution in the flowing-out process of the glue guide pipeline 2 is indicated;
step four-b, adjusting the state of the resin glue solution entering the glue guide pipeline 2 in real time according to the flowing-down speed of the resin glue solution, and improving the flowing-down quality of the resin glue solution;
Specifically, when the resin glue solution is precipitated and solidified in the process of flowing out of the glue guide pipeline 2, the condition of the resin glue solution in the first resin glue solution source 21 is poor, at the moment, a signal is transmitted to the adjusting submodule, the first liquid conveying pump 20 is controlled to be closed, the second liquid conveying pump 23 is controlled to be opened, the resin glue solution in the first resin glue solution source 21 is suspended to enter the glue guide pipeline 2, so that the resin glue solution in the second resin glue solution source 22 enters the glue guide pipeline 2, and the quality of the resin glue solution is improved;
Step four-c, while improving the quality of the flowing of the resin glue solution, determining the quantity of the resin glue solution in the glue groove 6, and then combining the quality condition of the resin glue solution entering the glue guiding pipeline 2, specifically adjusting the size of the outlet of the glue guiding pipeline 2, and further ensuring the quantity of the resin glue solution flowing into the glue groove 6 without being influenced by the quality of the resin glue solution in the glue guiding pipeline 2;
Specifically, when the amount of resin glue in the glue tank 6 is small, and the resin glue is precipitated and solidified in the process of flowing out of the glue guide pipeline 2, the speed of the resin glue flowing down of the glue guide pipeline 2 is too slow when the resin glue source is switched to the second resin glue source 22, the current limiting component is controlled to drive the limiting plate 13 to lift at the moment, the outlet of the glue guide pipeline 2 is opened and closed to the maximum position, a large amount of resin glue is convenient to fall into the glue tank 6, when the amount of resin glue in the glue tank 6 is large, and the resin glue is precipitated and solidified in the process of flowing out of the glue guide pipeline 2, the limiting plate 13 is still controlled to be in a medium state at the moment, the outlet of the glue guide pipeline 2 is not controlled to be small, and the phenomenon that the stability of the resin glue on the glue guide pipeline 2 is solidified to influence the resin glue normally flowing into the glue tank 6 is avoided.
Through the steps, when the second resin glue solution source 22 is switched, the size of the outlet of the glue guide pipeline 2 can be adjusted in real time according to the resin glue solution amount in the glue tank 6, so that the stability in the glue tank 6 can be better controlled.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present invention, and the present invention is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a slice is gluey groove liquid level measurement controlling means for plastic continuous production, includes curb plate (1), two sets of baffle (3), scraper (5), leads rubber pipeline (2) and flow control system, a serial communication port, the resin glue solution in leading rubber pipeline (2) falls into behind gluey groove (6) and flows from scraper (5) bottom again, and resin glue solution is not full of gluey groove (6) bottom, forms the arc arch that has certain width in gluey groove (6), every group the outside of curb plate (1) is provided with fixed plate (7), every group be provided with mark subassembly on fixed plate (7), mark subassembly conveniently prescribes a limit to resin glue solution and form radian width, the bottom of gluey groove (6) is provided with bottom plate (19), form clearance one (17) between scraper (5) and bottom plate (19), the below of bottom plate (19) is provided with plummer (18), be formed with clearance two (25) between plummer (18) and bottom plate (19), flow control system includes following concrete operation steps:
firstly, before production starting, a marking block (9) is moved to a proper position through a marking assembly according to the material requirement of a product, so that whether the resin glue solution is in the marking position or not can be conveniently identified;
Step two, starting a liquid conveying pump I (20) to convey the resin glue solution at the resin glue solution source I (21) onto a glue guiding pipeline (2) and then flow into a glue groove (6), and starting an external rolling assembly to drive a film to move in a gap II (25) at a high speed;
step three, recognizing the width of the resin glue solution in the glue tank (6) which is pulled into an arc shape through the visual unit (4), judging the flow of the resin glue solution into the glue tank (6), controlling the amount of the resin glue solution into the glue tank (6) through the current limiting assembly, controlling the stable range of the resin glue solution in the glue tank (6), accurately controlling the single weight of the SMC sheet, having no hysteresis, and being capable of preventing material breakage;
When the resin glue liquid amount in the glue groove (6) is controlled to be in a stable range, judging the time for stabilizing the resin glue liquid amount in real time to judge whether the resin glue liquid is precipitated and solidified in the process of flowing out of the glue guiding pipeline (2);
the fourth step further comprises the following specific steps:
Step four-a, starting a time recording sub-module to start timing when the resin glue solution in the glue tank (6) is kept in a normal state, and stopping timing until the resin glue solution in the glue tank (6) is abnormal, so as to judge the flowing-down speed of the resin glue solution;
Step four-b, adjusting the state of the resin glue solution entering the glue guide pipeline (2) in real time according to the flowing-down speed of the resin glue solution, and improving the flowing-down quality of the resin glue solution;
And step four-c, while improving the flowing quality of the resin glue solution, determining whether the quantity of the resin glue solution in the glue tank (6) is small or large, and then adjusting the size of an outlet of the glue guide pipeline (2) by combining the quality condition of the resin glue solution entering the glue guide pipeline (2), thereby further ensuring the quantity of the resin glue solution flowing into the glue tank (6) without being influenced by the quality of the resin glue solution in the glue guide pipeline (2).
2. The glue tank liquid level measurement control device for continuous production of sheet molding compound according to claim 1, wherein the third step comprises the following specific operation steps:
Step three-a, analyzing the distance between two groups of marking blocks (9) of the arc boundary line formed by the resin glue solution and judging the resin glue solution amount in the glue groove (6) because the distance between the two groups of marking blocks (9) is set;
and step three-b, controlling the movement of the flow limiting assembly according to the amount of the resin glue solution in the glue tank (6), and controlling the size of the outlet of the glue guide pipeline (2), so as to control the outflow amount of the resin glue solution and ensure that the amount of the resin glue solution in the glue tank (6) is maintained in a normal state.
3. The glue tank liquid level measurement control device for continuous production of sheet molding compound according to claim 1, wherein the marking assembly comprises a first slide rail (10) and a first air cylinder (8) which are fixed on a fixed plate (7), the first air cylinder (8) is provided with two groups, the two groups are respectively fixed on the front side and the rear side of the fixed plate (7), a first connecting block (16) is fixed at the output end of the first air cylinder (8), a marking block (9) is fixed on one side of the first connecting block (16), and the marking block (9) is in sliding connection with the first slide rail (10);
A visual unit (4) is hung on the glue groove (6), and the marking block (9) is provided with colors;
One end pipeline of the rubber guide pipeline (2) is connected with a first resin glue solution source (21), a first liquid conveying pump (20) is connected to the pipeline of the rubber guide pipeline (2) and the first resin glue solution source (21), a standby pipe (24) is connected to the pipeline of the rubber guide pipeline (2) and the first resin glue solution source (21), a second liquid conveying pump (23) is connected to the standby pipe (24), and a second resin glue solution source (22) is connected to the other end of the standby pipe (24).
4. The glue tank liquid level measurement control device for continuous production of sheet molding compound according to claim 3, wherein a flow limiting assembly is arranged on the glue guiding pipeline (2) and used for controlling the flowing-down speed of resin glue solution, the flow limiting assembly comprises two groups of mounting strips (11), each group of mounting strips (11) is fixed on two sides of the glue guiding pipeline (2), a second air cylinder (12) is fixed on one side of each group of mounting strips (11), a second connecting block (15) is fixed at the output end of each second air cylinder (12), a second sliding rail (14) is fixed on each group of mounting strips (11), the second connecting block (15) is in sliding connection with the second sliding rail (14), a limiting plate (13) is fixed between the two groups of connecting blocks (15), and the limiting plate (13) is positioned at the outlet of the glue guiding pipeline (2).
5. The device for controlling the liquid level measurement of the glue tank for the continuous production of the sheet molding compound according to claim 4, wherein two groups of the baffle plates (3) are fixed on the left side and the right side of the side plate (1), the scraper (5) is fixed on the other side of the two groups of the side plate (1), and the glue tank (6) is formed by the side plate (1), the two groups of the baffle plates (3) and the scraper (5).
6. The device for controlling the liquid level measurement of the glue tank for the continuous production of the sheet molding compound according to claim 5, wherein the device for controlling the liquid level measurement of the glue tank for the continuous production of the sheet molding compound further comprises a flow control system, the flow control system comprises a vision acquisition module and a processing module, the vision acquisition module comprises an image receiving sub-module, a logic judging sub-module and a time recording sub-module, the image receiving sub-module is electrically connected with the vision unit (4) and is used for identifying the width of an arc formed by the resin glue solution, the time recording sub-module is used for judging the width time of the arc formed by the resin glue solution, and the logic judging sub-module is used for analyzing the outflow speed of the resin glue solution from the glue guide pipeline (2).
7. The glue tank liquid level measurement control device for continuous production of sheet molding compound according to claim 6, wherein the logic judgment submodule comprises a position identification unit.
8. The glue tank liquid level measurement control device for continuous production of sheet molding compound according to claim 7, wherein the processing module comprises a lifting sub-module, an alarming sub-module and an adjusting sub-module, the lifting sub-module is electrically connected with the second cylinder (12) and is used for controlling the limiting plate (13) to move up and down at the outlet of the glue guiding pipeline (2), the alarming sub-module plays a role in alarming, the adjusting sub-module is electrically connected with the first liquid conveying pump (20) and the second liquid conveying pump (23), and the adjusting sub-module is used for adjusting the state of resin glue liquid entering the glue guiding pipeline (2).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011046811A (en) * | 2009-08-26 | 2011-03-10 | Panasonic Electric Works Co Ltd | Method for manufacturing smc |
| CN109454896A (en) * | 2018-10-31 | 2019-03-12 | 江苏常阳科技有限公司 | The control method of mass flow in fluent material continuous production |
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| JP2017217591A (en) * | 2016-06-06 | 2017-12-14 | 大日本印刷株式会社 | Coating device and coating method |
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| JP2011046811A (en) * | 2009-08-26 | 2011-03-10 | Panasonic Electric Works Co Ltd | Method for manufacturing smc |
| CN109454896A (en) * | 2018-10-31 | 2019-03-12 | 江苏常阳科技有限公司 | The control method of mass flow in fluent material continuous production |
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