CN114248450A - Telescopic injection molding buoy welding device and optimization method - Google Patents
Telescopic injection molding buoy welding device and optimization method Download PDFInfo
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- CN114248450A CN114248450A CN202111404628.4A CN202111404628A CN114248450A CN 114248450 A CN114248450 A CN 114248450A CN 202111404628 A CN202111404628 A CN 202111404628A CN 114248450 A CN114248450 A CN 114248450A
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7841—Holding or clamping means for handling purposes
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/87—Auxiliary operations or devices
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention provides a telescopic injection molding buoy welding device and an optimization method. The telescopic injection molding buoy welding device comprises: the heating element is movably arranged in the rack; the clamp group is connected in the rack in a sliding manner and is driven by the driving piece to slide; the pressure stabilizing mechanism is connected with the driving piece; the connecting piece is connected with the inside of the injection molding buoy; the first detection piece is connected with the connecting piece and used for measuring the internal air pressure of the injection molding buoy. The controller, with the heating member the driving piece with the steady voltage mechanism electricity is connected, the controller is configured with welding parameter, welding parameter includes: welding time, heating temperature and holding pressure. Whether the quality of the welded injection molding buoy is qualified or not can be judged through the internal air pressure, and the specific numerical values of the heating temperature and the pressure maintaining pressure can be adjusted through the controller.
Description
Technical Field
The invention relates to the technical field of hot plate welding, in particular to a telescopic injection molding buoy welding device and an optimization method.
Background
The float bowl of the water-floating photovoltaic power station belongs to a large-scale hollow plastic structure and is divided into an integral float bowl and a telescopic injection molding float bowl, wherein the telescopic injection molding float bowl is a split type float bowl, and the upper cover and the lower body are respectively processed by an injection molding process. During transportation, the upper cover and the lower body are respectively stacked together in a telescoping mode to be packaged, and the upper cover and the lower body are welded into an integral buoy through a welding process after being transported to a site.
In the prior art, the upper cover and the lower body are welded through the hot melting machine, after the welding is completed, whether the welding quality is qualified or not can not be directly judged in the welding process, the temperature and the pressure are selected according to experience during the welding, and the temperature and the pressure parameters are inconvenient to adjust during the welding, so that the welding time is long, and the process efficiency is low.
Disclosure of Invention
The invention aims to provide a telescopic injection buoy welding device and an optimization method, and aims to solve the problems that whether the welding quality is qualified or not cannot be directly judged in the welding process and temperature and pressure parameters are inconvenient to adjust in the welding process in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a telescopic injection molding buoy welding device comprises: the frame still includes:
the heating element is movably arranged in the rack;
the clamp group is connected in the rack in a sliding manner and is driven by the driving piece to slide;
the pressure stabilizing mechanism is connected with the driving piece and is positioned outside the rack;
the connecting piece is connected with the inside of the injection molding buoy;
the first detection piece is connected with the connecting piece and used for measuring the internal air pressure of the injection molding buoy.
The controller, with the heating member the driving piece with the steady voltage mechanism electricity is connected, the controller is configured with welding parameter, welding parameter includes: welding time, heating temperature and pressurize pressure, heating temperature does the temperature of heating member during operation, pressurize pressure does when the flotation pontoon of moulding plastics compresses tightly the welding the steady voltage mechanism provides the pressure of driving piece.
Further, the connecting piece is the breather plug, breather plug one end intercommunication the blow vent of flotation pontoon of moulding plastics, the other end of breather plug is connected with first gas holder through first trachea, the second detection piece with first gas holder links to each other, first gas holder connection has first air compressor.
Further, still include the second detection piece, the second detection piece is located on the heating member for measure the heating temperature of heating member.
Further, the pressure stabilizing mechanism comprises a second air storage tank, a third detection piece and a second air compressor, wherein the third detection piece and the second air compressor are connected with the second air storage tank, and the second air storage tank is connected with the driving piece.
Further, be applied to the welding of flotation pontoon upper cover and flotation pontoon lower part of the body, anchor clamps group includes: the first clamp and the second clamp are respectively connected to two opposite sides in the rack in a sliding mode, the driving piece comprises a first moving cylinder and a second moving cylinder, the first clamp and the second clamp are respectively driven to move by the first moving cylinder and the second moving cylinder, the first clamp is used for achieving clamping and moving of the lower buoy body, and the second clamp is used for achieving clamping and moving of the upper buoy cover.
Further, the second air storage tank is connected with the first movable air cylinder and the second movable air cylinder through a second air pipe and a third air pipe respectively.
Further, the moving direction of the heating member is perpendicular to the moving direction of the first jig.
A telescopic injection molding buoy welding optimization method comprises the following steps:
setting the welding time, setting the pressure maintaining pressure as a second pressure maintaining pressure, and setting the heating temperature as a first heating temperature;
controlling the welding device to weld the injection molding buoy for multiple times by taking the first heating temperature and the welding time as variables and the second holding pressure as a fixed value, and when the internal air pressure meets a first preset condition, determining the minimum welding time corresponding to the first heating temperature as the first welding time to generate a first curve determined by the first heating temperature and the first welding time;
setting the heating temperature as a second heating temperature, and setting the pressure maintaining pressure as a first pressure maintaining pressure;
controlling the welding device to weld the injection molding buoy for multiple times by taking the first pressure holding pressure and the welding time as variables and the second heating temperature as a fixed value, and when the internal air pressure meets the first preset condition, determining the minimum welding time corresponding to the first pressure holding pressure as second welding time, and generating a second curve determined by the first pressure holding pressure and the second welding time;
and superposing the first curve and the second curve to determine the optimal welding time, the optimal pressure maintaining pressure and the optimal heating temperature.
Further, the controlling the welding device to perform the welding of the injection molding buoy for multiple times by using the first heating temperature and the welding time as variables, and the second holding pressure as a fixed value, and when the internal air pressure satisfies a first preset condition, determining a minimum welding time corresponding to the first heating temperature as a first welding time, and generating a first curve determined by the first heating temperature and the first welding time includes:
controlling the welding device to weld the injection molding buoy at the welding time, the first heating temperature and the second holding pressure;
judging whether the internal air pressure meets a first preset condition or not;
when the internal air pressure meets the first preset condition, reducing the welding time, and repeating the steps until the internal air pressure does not meet the first preset condition;
when the internal air pressure does not meet the first preset condition, recording the welding time corresponding to the last time when the internal air pressure meets the first preset condition as first welding time, and recording the first heating temperature at the moment;
increasing the first heating temperature by a corresponding set value, and repeating the steps until the first heating temperature reaches a first preset value;
generating a first profile determined from the first heating temperature and the first weld time.
Further, the controlling the welding device to perform the welding of the injection molding buoy for multiple times by using the first holding pressure and the welding time as variables, and the second heating temperature as a fixed value, when the internal air pressure meets the first preset condition, determining the minimum welding time corresponding to the first holding pressure as a second welding time, and generating a second curve determined by the first holding pressure and the second welding time includes:
controlling the welding device to weld the injection molding buoy at the welding time, the second heating temperature and the first pressure maintaining pressure;
judging whether the internal air pressure meets the first preset condition or not;
when the internal air pressure meets the first preset condition, reducing the welding time, and repeating the steps until the internal air pressure does not meet the first preset condition;
when the internal air pressure does not meet the first preset condition, recording the welding time corresponding to the last time when the internal air pressure meets the first preset condition as second welding time, and recording the first pressure maintaining pressure at the moment;
increasing the first pressure maintaining pressure by a corresponding set value, and repeating the steps until the first pressure maintaining pressure reaches a second preset value;
generating a second profile determined from the first holding pressure and the second weld time.
In conclusion, due to the adoption of the technical scheme, the telescopic injection buoy welding device has the following beneficial effects:
by arranging the pressure stabilizing mechanism, the pressure applied to the clamp group by the driving piece can be controlled by the pressure stabilizing mechanism, namely the pressure maintaining pressure during welding of the injection buoy can be controlled by the pressure stabilizing mechanism, so that the injection buoy is convenient to adjust; the internal air pressure of the injection molding buoy can be measured through the connecting piece and the first detection piece, and then whether the quality of the injection molding buoy after welding is qualified or not is judged through the internal air pressure, so that whether the quality of the injection molding buoy after welding is qualified or not is judged effectively and reliably; the controller is configured with welding parameters including: heating temperature and pressurize pressure, the concrete numerical value of adjustable heating temperature and pressurize pressure through the controller promptly, it is convenient to adjust, does benefit to and improves welding process efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a telescopic injection molding buoy welding device in an embodiment of the invention;
FIG. 2 is a flowchart illustrating the steps of a telescopic injection buoy welding optimization method according to an embodiment of the present invention;
FIG. 3 is a block flow diagram of a weld time-heating temperature parameter optimization process in an embodiment of the present invention;
FIG. 4 is a block diagram of a process for optimizing welding time-dwell pressure parameters in an embodiment of the present invention;
FIG. 5 is a first graph illustrating an embodiment of the present invention;
FIG. 6 is a second graph illustrating an embodiment of the present invention;
fig. 7 is a schematic diagram showing the superposition of the first curve and the second curve in the embodiment of the present invention.
The labels in the figure are:
1. a frame; 2. a first clamp; 3. a first moving cylinder; 4. a first air compressor; 5. a first gas storage tank; 6. a first pressure gauge; 7. a vent plug; 8. a second moving cylinder; 9. a second clamp; 10. heating plate, 11, temperature sensor, 12, second pressure gauge, 13, second gas holder, 14, second air compressor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a telescopic injection molding buoy welding device in an embodiment of the invention, as shown in fig. 1, the welding device is applied to welding of a buoy upper cover and a buoy lower body, and comprises: frame 1, heating member, anchor clamps group, driving piece, steady voltage mechanism, connecting piece, first detection piece and controller.
Specifically, the frame 1 has a square hollow structure.
The clamp group comprises a first clamp 2 and a second clamp 9, the second clamp 9 and the first clamp 2 are respectively connected to the upper side and the lower side in the rack 1 in a sliding mode, the driving piece comprises a first moving cylinder 3 and a second moving cylinder 8, the first clamp 2 and the second clamp 9 are respectively driven by the first moving cylinder 3 and the second moving cylinder 8 to move, the first clamp 2 is used for clamping and moving the lower pontoon body, and the second clamp 9 is used for clamping and moving the upper pontoon cover. The clamping and moving of the buoy lower body and the buoy upper cover can be quickly realized through the first clamp 2 and the second clamp 9.
The first clamp 2 is arranged in the frame 1 through a first moving guide rail, and the first clamp 2 can be driven to move up and down along the first moving guide rail through the first moving cylinder 3. The second clamp 9 is arranged in the frame 1 through a second moving guide rail, and the second moving cylinder 8 can drive the second clamp 9 to move up and down along the second moving guide rail. The first movable guide rail and the second movable guide rail are both vertically arranged in the rack 1, the first movable guide rail is positioned at the upper part of the rack 1, and the second movable guide rail is positioned at the lower part of the rack 1. That is, the moving directions of the first jig 2 and the second jig 9 are both the vertical direction of the frame 1.
Optionally, the heating member is heating plate 10, electric heating plate is chooseed for use to heating plate 10, and heating plate 10 during operation goes on with certain heating temperature, and heating plate 10 during operation can rise the temperature to predetermined heating temperature fast. The heating plate 10 is disposed in the frame 1 through a third movable guide rail, the third movable guide rail is transversely disposed, the moving direction of the heating plate 10 is perpendicular to the moving direction of the first fixture 2, and in this embodiment, the moving direction of the heating plate 10 is the left-right direction of the frame 1. Heating plate 10 is moved by a third moving cylinder which drives heating plate 10 to move along a third moving rail to a position between first clamp 2 and second clamp 9.
Be equipped with the second on hot plate 10 and detect the piece, the second detects the piece and is temperature sensor 11, temperature sensor 11 is used for measuring the real-time temperature of heating member. Can measure the real-time temperature of heating member through temperature sensor 11, be convenient for detect whether the temperature of heating member reaches the heating temperature of demand, still can send the controller through the real-time temperature signal of temperature sensor 11 heating member.
The bottom of the buoy upper cover is a welding position, and the top of the buoy lower body is a welding position. Can heat two welding position through hot plate 10, heating process lasts certain heat time, can hug closely the flotation pontoon upper cover after heating and the flotation pontoon lower part of the body and compress tightly and weld through first anchor clamps 2 and second anchor clamps 9, and this process needs to last certain dwell time, and at this moment, the driving pressure that first anchor clamps 2 and second anchor clamps 9 received is the dwell pressure, the driving pressure that first anchor clamps 2 and second anchor clamps 9 received comes from first moving cylinder 3 respectively with second moving cylinder 8.
Specifically, the pressure stabilizing mechanism comprises a second air storage tank 13, a third detection piece and a second air compressor 14, wherein the second air storage tank 13 is connected with the first movable air cylinder 3 and the second movable air cylinder 8 through a second air pipe and a third air pipe respectively. The second air tank 13 is connected to the second air compressor 14 through a fourth air pipe. Compressed air with certain pressure compressed by the second air compressor 14 enters the second air storage tank 13, and is sent into the first movable air cylinder 3 and the second movable air cylinder 8 through the second air storage tank 13, so that an air source is provided for the first movable air cylinder 3 and the second movable air cylinder 8. The pressure in the second air tank 13 is equal to the driving pressure of the first moving cylinder 3 and the second moving cylinder 8. The driving pressure of the first movable cylinder 3 and the second movable cylinder 8 can be controlled by the second air storage tank 13 and the second air compressor 14, so that the value of the driving pressure of the first movable cylinder 3 and the second movable cylinder 8 can meet the requirement, the driving pressure can be conveniently controlled, and the driving pressure provided for the first movable cylinder 3 and the second movable cylinder 8 by the second air storage tank 13 and the second air compressor 14 can be detected in real time by the third detection piece.
The third detecting member is a second pressure gauge 12, the second pressure gauge 12 is connected to a second air storage tank 13, the second pressure gauge 12 is used for measuring the pressure in the second air storage tank 13, and the measurement result is the driving pressure of the first moving cylinder 3 and the second moving cylinder 8.
Specifically, the connecting piece is a vent plug 7, the vent hole of 7 one end intercommunication flotation pontoon upper covers of vent plug, the other end of vent plug 7 is connected with first gas holder 5 through first trachea, the effect of vent plug 7 be for make the inside of flotation pontoon upper cover with the inside intercommunication of first gas holder 5. The second detects the piece with first gas holder 5 links to each other, first gas holder 5 is connected with first air compressor 4, the second detects the piece and is first pressure gauge 6. The first pressure gauge 6 is used for measuring the pressure in the first air storage tank 5, and the pressure in the first air storage tank 5 is equal to the internal air pressure of the compressed buoy upper cover and the compressed buoy lower body. The vent plug 7 can communicate the inside of the upper cover of the float bowl, so that the internal air pressure of the upper cover and the lower body of the float bowl after being compressed is measured through the first air pipe, the first air storage tank 5 and the first pressure gauge 6, and whether the quality of the upper cover and the lower body of the float bowl after being welded is qualified can be judged through monitoring the value of the internal air pressure.
Compressed air with certain pressure compressed by the first air compressor 4 enters the first air storage tank 5 and is sent into the compressed upper pontoon cover and lower pontoon body through the first air storage tank 5, so that the internal air pressure of the compressed upper pontoon cover and lower pontoon body reaches a set value. And after the internal air pressure reaches a set value and is kept for a certain time, if the internal air pressure value is not reduced, judging that the quality of the welded injection molding buoy is qualified.
Optionally, the first air compressor 4 and the second air compressor 14 are both positive displacement piston air compressors.
The controller is electrically connected with the third movable cylinder, the first clamp 2, the first movable cylinder 3, the first air compressor 4, the first pressure gauge 6, the second movable cylinder 8, the second clamp 9, the heating plate 10, the temperature sensor 11, the second pressure gauge 12 and the second air compressor 14, and can control the operation of the third movable cylinder, the first clamp 2, the first movable cylinder 3, the first air compressor 4, the second movable cylinder 8, the second clamp 9, the heating plate 10 and the second air compressor 14, and the controller can receive the measurement data of the first pressure gauge 6, the temperature sensor 11 and the second pressure gauge 12. The controller is also connected with a timer and is used for recording the pressure maintaining time.
The controller is configured with welding parameters including: heating temperature, pressurize pressure heating time and dwell time, heating temperature does the temperature of hot plate 10 during operation, the dwell pressure does when the flotation pontoon of moulding plastics compresses tightly the welding the steady voltage mechanism provides the pressure of first moving cylinder 3 and second moving cylinder 8, heating time does hot plate 10 is to the time that the heating of flotation pontoon upper cover and the flotation pontoon lower part of the body lasts, the dwell time is the time that the compression welding lasts of flotation pontoon upper cover and the flotation pontoon lower part of the body.
The method for welding the upper buoy cover and the lower buoy body through the welding device comprises the following steps:
1) controlling the first clamp 2 to clamp the buoy lower body and controlling the second clamp 9 to clamp the buoy upper cover;
2) controlling the heating plate 10 to be heated to a set heating temperature, and controlling a third moving cylinder to drive the heating plate 10 to move to a position between the first clamp 2 and the second clamp 9;
3) controlling the second air compressor 14, the first moving cylinder 3 and the second moving cylinder 8 to work, and moving the first clamp 2 and the second clamp 9 close to each other until the upper buoy cover and the lower buoy body are in contact with the heating plate 10;
4) after the heating plate 10 heats the welding position of the upper cover and the lower body of the buoy, the first movable cylinder 3 and the second movable cylinder 8 are controlled to work, so that the first clamp 2 and the second clamp 9 move away from each other;
5) controlling a third moving cylinder to drive the heating plate 10 to move to a position far away from the first clamp 2 and the second clamp 9;
6) controlling the second air compressor 14, the first movable air cylinder 3 and the second movable air cylinder 8 to work, so that the first clamp 2 and the second clamp 9 move close to each other until the welding positions of the upper float cover and the lower float body are contacted and pressed, wherein the pressing and welding of the upper float cover and the lower float body need to be continued for a certain pressure maintaining time, and the driving pressure on the first clamp 2 and the second clamp 9 is pressure maintaining pressure;
7) when the welding positions of the upper cover and the lower body of the buoy are contacted and pressed mutually, the first air compressor 4 is controlled to work until the internal air pressure reaches a set value, whether the internal air pressure is reduced or not is judged within the pressure maintaining time, and if not, the quality of the welded injection molding buoy is qualified;
8) and controlling the first moving cylinder 3 to work, so that the first clamp 2 moves towards the direction away from the second clamp 9, and the welded injection molding buoy is separated from the first clamp 2.
Based on the same inventive concept, the invention provides a telescopic injection molding buoy welding optimization method, referring to fig. 2, fig. 2 is a flow chart of steps of a cold start method of a diesel engine in an embodiment of the invention, as shown in fig. 2, the method includes:
step 101: and setting the welding time, setting the pressure maintaining pressure as a second pressure maintaining pressure, and setting the heating temperature as a first heating temperature.
In the present embodiment, the welding time is a dwell time, which is a time during which the compression welding of the upper cover and the lower body of the float bowl is continued. Setting the holding pressure in the welding parameters as a second holding pressure, setting the heating temperature as a first heating temperature, specifically setting the holding time as 100 seconds, setting the second holding pressure as 0.5MPa, and setting the first heating temperature as 250 ℃.
In other embodiments, the welding time may be the sum of the dwell time and the heating time.
Step 102: and controlling a welding device to weld the injection molding buoy for multiple times by taking the first heating temperature and the welding time as variables and the second pressure maintaining pressure as a fixed value, and when the internal air pressure meets a first preset condition, determining the minimum welding time corresponding to the first heating temperature as the first welding time, and generating a first curve determined by the first heating temperature and the first welding time.
In particular, with reference to fig. 3, the following steps are included:
substep 11: and controlling the welding device to weld the injection molding buoy according to the welding time, the first heating temperature and the second pressure maintaining pressure.
In this embodiment, control welding set with welding time, first heating temperature and second pressurize pressure go on the welding of the flotation pontoon of moulding plastics, use first heating temperature as the heating temperature in the welding parameter promptly, use second pressurize pressure as the pressurize pressure in the welding parameter, control welding set carries out the welding of flotation pontoon upper cover and flotation pontoon lower part of the body.
Specifically, the welding time is the dwell time, and the value of the dwell time at this time is 100 seconds.
Substep 12: and judging whether the internal air pressure meets a first preset condition or not.
In this embodiment, it is determined whether the internal air pressure satisfies a first preset condition, which is used to determine whether the quality of the welded injection buoy is qualified, and if the internal air pressure satisfies the first preset condition, it indicates that the quality of the welded injection buoy is qualified, and the use requirement is satisfied.
Specifically, whether the internal air pressure meets a first preset condition is judged, that is, when the internal air pressure reaches a set value, whether the value of the internal air pressure is reduced within the time period of the pressure maintaining time is judged, and if not, the first preset condition is met; if the value of the internal air pressure is reduced in the time period of the pressure maintaining time, it indicates that the first preset condition is not met.
Substep 13: and when the internal air pressure meets the first preset condition, reducing the welding time, and repeating the steps until the internal air pressure does not meet the first preset condition.
In the present embodiment, the welding time is reduced, i.e. the corresponding preset value of the welding time is reduced, for example, the welding time is reduced by 10 seconds. And when the internal air pressure meets a first preset condition, reducing the welding time, and re-executing the substep 11 until the internal air pressure does not meet the first preset condition.
Substep 14: when the internal air pressure does not meet the first preset condition, recording the welding time corresponding to the last time when the internal air pressure meets the first preset condition as first welding time, and recording the first heating temperature at the moment.
And recording the first welding time and the first heating temperature at the moment, and storing two corresponding parameters of the first welding time and the first heating temperature at the moment.
Substep 15: and increasing the first heating temperature by a corresponding set value, and repeating the steps until the first heating temperature reaches a first preset value.
Specifically, the corresponding set value is 10 degrees, and the first heating temperature is increased by the corresponding set value, that is, the first heating temperature is increased by 10 degrees. The above steps are re-performed, i.e. the sub-step 11 is re-executed.
If the first preset value is 320 degrees, that is, the first heating temperature is increased to 320 degrees for many times, the above operation is ended. Namely, the range of the first heating temperature is 250-320 ℃.
Substep 16: generating a first profile determined from the first heating temperature and the first weld time.
And generating a first curve corresponding to the first welding time and the first heating temperature by taking the first welding time as an abscissa and the first heating temperature as an ordinate. A schematic diagram of the first curve generated in this embodiment is shown in fig. 5.
Step 103: and setting the heating temperature as a second heating temperature and setting the holding pressure as a first holding pressure.
In the present embodiment, the holding pressure among the welding parameters is set to a first holding pressure, and the heating temperature is set to a second heating temperature, specifically, the first holding pressure is set to 0.3MPa, and the second heating temperature is set to 300 ℃.
Step 104: and controlling the welding device to use the first pressure maintaining pressure and the welding time as variables, and performing the welding of the injection molding buoy for a plurality of times by taking the second heating temperature as a fixed value, when the internal air pressure meets the first preset condition, determining the minimum welding time corresponding to the first pressure maintaining pressure as the second welding time, and generating a second curve determined by the first pressure maintaining pressure and the second welding time.
Specifically, referring to fig. 4, the method includes the following steps:
substep 21: and controlling the welding device to weld the injection molding buoy in the welding time, the second heating temperature and the first pressure maintaining pressure.
In this embodiment, control the welding set and use welding time, second heating temperature and first holding pressure to carry out the welding of the flotation pontoon of moulding plastics, use the second heating temperature as the heating temperature in the welding parameter promptly, use first holding pressure as the holding pressure in the welding parameter, control the welding set carries out the welding of flotation pontoon upper cover and flotation pontoon lower part of the body.
Specifically, the welding time is the dwell time, and the value of the dwell time at this time is 100 seconds.
Substep 22: and judging whether the internal air pressure meets the first preset condition or not.
In this embodiment, it is determined whether the internal air pressure satisfies a first preset condition, which is used to determine whether the quality of the welded injection buoy is qualified, and if the internal air pressure satisfies the first preset condition, it indicates that the quality of the welded injection buoy is qualified, and the use requirement is satisfied.
Specifically, whether the internal air pressure meets a first preset condition is judged, that is, when the internal air pressure reaches a set value, whether the value of the internal air pressure is reduced within the time period of the pressure maintaining time is judged, and if not, the first preset condition is met; if the value of the internal air pressure is reduced in the time period of the pressure maintaining time, it indicates that the first preset condition is not met.
Substep 23: and when the internal air pressure meets the first preset condition, reducing the welding time, and repeating the steps until the internal air pressure does not meet the first preset condition.
In the present embodiment, the welding time is reduced, i.e. the corresponding preset value of the welding time is reduced, for example, the welding time is reduced by 10 seconds. And when the internal air pressure meets a first preset condition, reducing the welding time, and re-executing the substep 21 until the internal air pressure does not meet the first preset condition.
Substep 24: when the internal air pressure does not meet the first preset condition, recording the welding time corresponding to the last time when the internal air pressure meets the first preset condition as second welding time, and recording the first pressure maintaining pressure at the moment.
And recording the second welding time and the first pressure holding pressure at the moment, and storing two corresponding parameters of the second welding time and the first pressure holding pressure at the moment.
Substep 25: and increasing the first pressure maintaining pressure by a corresponding set value, and repeating the steps until the first pressure maintaining pressure reaches a second preset value.
Specifically, the corresponding set value is 0.1MPa, and the first pressure holding pressure is increased by the corresponding set value, that is, the first pressure holding pressure is increased by 0.1 MPa. The above steps are re-performed, i.e. the sub-step 21 is re-executed.
And the second preset value is 1MPa, namely the first pressure maintaining pressure is increased to 1MPa for multiple times, and the operation is ended. I.e. the first holding pressure is in the range of 0.3-1 MPa.
Substep 26: generating a second profile determined from the first holding pressure and the second weld time.
And generating a second curve corresponding to the second welding time and the first holding pressure by taking the second welding time as an abscissa and the first holding pressure as an ordinate. A schematic diagram of the second curve generated in this embodiment is shown in fig. 6.
Step 105: and superposing the first curve and the second curve to determine the optimal welding time, the optimal pressure maintaining pressure and the optimal heating temperature.
And overlapping the first curve and the second curve by taking the welding time as an abscissa and the first pressure holding pressure and the first heating temperature as an ordinate. In the present embodiment, a schematic diagram of the superposition of the first curve and the second curve is shown in fig. 7.
The welding time corresponding to the intersection of the first curve and the second curve is the optimal welding time, and the first heating temperature and the first pressure holding pressure corresponding to the optimal welding time are the optimal heating temperature and the optimal pressure holding pressure. In this embodiment, as shown in fig. 7, the optimal welding time is 40 seconds, the optimal heating temperature corresponding to the welding time is 260 degrees, and the optimal holding pressure is 0.9 MPa.
The welding optimization method takes the shortest welding time as an optimization target, can optimize welding parameters under the condition of ensuring that the welded upper cover and lower body of the buoy meet the quality requirement, reduces the time of the whole welding process of the injection molding buoy, and improves the process efficiency.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be 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. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal 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 terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The telescopic injection molding buoy welding device and the optimization method provided by the invention are described in detail, specific examples are applied in the detailed description to explain the principle and the implementation mode of the invention, and the description of the examples is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides a telescopic flotation pontoon welding set of moulding plastics, includes the frame, its characterized in that still includes:
the heating element is movably arranged in the rack;
the clamp group is connected in the rack in a sliding manner and is driven by the driving piece to slide;
the pressure stabilizing mechanism is connected with the driving piece and is positioned outside the rack;
the connecting piece is connected with the inside of the injection molding buoy;
the first detection piece is connected with the connecting piece and used for measuring the internal air pressure of the injection molding buoy.
The controller, with the heating member the driving piece with the steady voltage mechanism electricity is connected, the controller is configured with welding parameter, welding parameter includes: welding time, heating temperature and pressurize pressure, heating temperature does the temperature of heating member during operation, pressurize pressure does when the flotation pontoon of moulding plastics compresses tightly the welding the steady voltage mechanism provides the pressure of driving piece.
2. The device of claim 1, wherein the connecting member is a vent plug, one end of the vent plug is communicated with the vent hole of the injection buoy, the other end of the vent plug is connected with a first air storage tank through a first air pipe, the second detecting member is connected with the first air storage tank, and the first air storage tank is connected with a first air compressor.
3. The apparatus according to claim 1, further comprising a second detecting member provided on the heating member for measuring a heating temperature of the heating member.
4. The apparatus of claim 1, wherein the pressure stabilizing mechanism comprises a second air reservoir, a third sensing member, and a second air compressor, the third sensing member and the second air compressor both being connected to the second air reservoir, the second air reservoir being connected to the drive member.
5. The apparatus of claim 4, wherein the apparatus is applied to welding of the upper cover of the buoy and the lower body of the buoy, and the clamp set comprises: the first clamp and the second clamp are respectively connected to two opposite sides in the rack in a sliding mode, the driving piece comprises a first moving cylinder and a second moving cylinder, the first clamp and the second clamp are respectively driven to move by the first moving cylinder and the second moving cylinder, the first clamp is used for achieving clamping and moving of the lower buoy body, and the second clamp is used for achieving clamping and moving of the upper buoy cover.
6. The apparatus of claim 5, wherein the second air reservoir is connected to the first and second traveling cylinders by second and third air tubes, respectively.
7. The apparatus of claim 5 wherein the direction of movement of the heating element is perpendicular to the direction of movement of the first fixture.
8. A telescopic injection molding buoy welding optimization method is characterized by comprising the following steps:
setting welding time, setting the pressure maintaining pressure as a second pressure maintaining pressure, and setting the heating temperature as a first heating temperature;
controlling a welding device to weld the injection molding buoy for multiple times by taking the first heating temperature and the welding time as variables and the second holding pressure as a fixed value, and when the internal air pressure meets a first preset condition, determining the minimum welding time corresponding to the first heating temperature as the first welding time to generate a first curve determined by the first heating temperature and the first welding time;
setting the heating temperature as a second heating temperature, and setting the pressure maintaining pressure as a first pressure maintaining pressure;
controlling the welding device to weld the injection molding buoy for multiple times by taking the first pressure holding pressure and the welding time as variables and the second heating temperature as a fixed value, and when the internal air pressure meets the first preset condition, determining the minimum welding time corresponding to the first pressure holding pressure as second welding time, and generating a second curve determined by the first pressure holding pressure and the second welding time;
and superposing the first curve and the second curve to determine the optimal welding time, the optimal pressure maintaining pressure and the optimal heating temperature.
9. The method of claim 8, wherein the controlling the welding device performs a plurality of welding operations on the injection buoy with the first heating temperature and the welding time as variables, the second holding pressure is a fixed value, and when the internal gas pressure satisfies a first preset condition, the minimum welding time corresponding to the first heating temperature is determined as a first welding time, and a first curve determined by the first heating temperature and the first welding time is generated, comprising:
controlling the welding device to weld the injection molding buoy at the welding time, the first heating temperature and the second holding pressure;
judging whether the internal air pressure meets a first preset condition or not;
when the internal air pressure meets the first preset condition, reducing the welding time, and repeating the steps until the internal air pressure does not meet the first preset condition;
when the internal air pressure does not meet the first preset condition, recording the welding time corresponding to the last time when the internal air pressure meets the first preset condition as first welding time, and recording the first heating temperature at the moment;
increasing the first heating temperature by a corresponding set value, and repeating the steps until the first heating temperature reaches a first preset value;
generating a first profile determined from the first heating temperature and the first weld time.
10. The method of claim 8, wherein the controlling the welding device to perform the welding of the injection buoy a plurality of times with the first holding pressure and the welding time as variables, the second heating temperature as a fixed value, and when the internal gas pressure satisfies the first predetermined condition, determining a minimum welding time corresponding to the first holding pressure as a second welding time, and generating a second curve determined by the first holding pressure and the second welding time comprises:
controlling the welding device to weld the injection molding buoy at the welding time, the second heating temperature and the first pressure maintaining pressure;
judging whether the internal air pressure meets the first preset condition or not;
when the internal air pressure meets the first preset condition, reducing the welding time, and repeating the steps until the internal air pressure does not meet the first preset condition;
when the internal air pressure does not meet the first preset condition, recording the welding time corresponding to the last time when the internal air pressure meets the first preset condition as second welding time, and recording the first pressure maintaining pressure at the moment;
increasing the first pressure maintaining pressure by a corresponding set value, and repeating the steps until the first pressure maintaining pressure reaches a second preset value;
generating a second profile determined from the first holding pressure and the second weld time.
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