CN1195616C - Stroke regulating method and device - Google Patents
Stroke regulating method and device Download PDFInfo
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- CN1195616C CN1195616C CNB01131009XA CN01131009A CN1195616C CN 1195616 C CN1195616 C CN 1195616C CN B01131009X A CNB01131009X A CN B01131009XA CN 01131009 A CN01131009 A CN 01131009A CN 1195616 C CN1195616 C CN 1195616C
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Abstract
The present invention relates to a method and a device for adjusting stroke amount. The device is an auxiliary device for compression moulding equipment for adjusting the error amount of a plane stroke of a mould in the manufacture process of compression moulding at any time, adjusting the displacement amount for moving the mould in the manufacture process of filling the mould with variable volume and reducing the fraction defective of products and the production cost. The device of the present invention comprises an upper stroke plate, a lower stroke plate, a supporting rod, an adjustable spiral spring with a displacement sensor, and a central processing unit. The method of the present invention comprises the steps: the set of stress for the adjustable spiral spring, the rotation of a rotary body, the injection of molten raw materials, the formation by compression, the maintenance of pressure, the transmission of signals of the displacement amount to the central processing unit by the displacement sensor, the completion of hot-pressing programs by die sinking, the conversion of the displacement signals by the central processing unit, the revision of the deformation amount and the stress of the adjustable spiral spring, the calculation of rotating angles of the rotary body by an internal difference method, and the rotation of the rotary body to an appropriate angle.
Description
Technical field
The invention belongs to the method and the device thereof of mobile mould the displacement control appliance, particularly a kind of stroke regulating of compression molding device servicing unit and variable volume mold filling.
Background technology
In the known compression molding techniques, when also strength puts on patrix counterdie compression moulding in the past in addition in the raw material that melts stove injects the cavity of resorption mould, in pressing process, factors such as process because of the stroke of the control of the process of mould location, moulding, mould temperature, pressing mold and time control, pressurize, the capital influences the final molding of goods, also can influence the flat accuracy and the thickness of product surface, promptly the univers parameter of processing procedure causes the error of progression.When the precision of goods changes, just after producing a considerable amount of defective products, just can be detected, and breaks in production comes inspection process equipment, mold exchange spare part etc. more, not only time-consuming, effort also may arrive and finally also can not find the problem place.
Other is about the processing procedure of variable volume mold filling, variation along with the goods specification, the specification of same type has multiple size, for the number of times that reduces mold exchange more or reduce change the mobile mould displacement of control device to increase output, therefore in identical die cavity, partly or entirely use the variable volume die cavity to change the specification of goods.In plastics inject the variable volume die cavity, influence the specification of goods and the flat accuracy on surface along with the displacement of the different and mobile mould of injection pressure, therefore molten plastic changes and displacement the pressure of each point on the mobile mould in the accurate control variable volume die cavity, can make goods meet the requirements of precision.
Summary of the invention
The purpose of this invention is to provide mobile mould in a kind of margin of error that can adjust mould plane stroke in the pressing mold processing procedure at any time and the variable volume mold filling processing procedure displacement, reduce the method and the device thereof of the stroke regulating of goods fraction defective and production cost.
Stroke regulating device of the present invention comprises stroke upper plate, stroke lower plate, support bar, adjustable helical spring and CPU; Be respectively arranged with several adjustable helical springs on the stroke upper plate and adjust seat and several support bars adjustment seat; The stroke lower plate is provided with several adjustable helical spring holders and several support bar holders; The support bar two ends are arranged at the support bar of the upper and lower plate of stroke respectively and adjust on seat and the support bar holder, by the starting force of adjusting distance initial between the upper and lower plate of stroke and supporting; CPU receive the adjustable helical spring of being exported by the displacement sensing device after stressed deflection and the margin of error behind the product molding, and compare with basic parameter and to handle back output and adjust signal to the rotary body drives structure, make adjustable helical spring reach the coefficient of elasticity of demand; Adjustable helical spring has the sensor that is used to measure its stressed back length variations displacement, and will measure signal and deliver to CPU, and it has public housing, parent shell, rotary body and reaches the drives structure that combines with it; Adjustable helical spring is arranged at the adjustable helical spring of the upper and lower plate of stroke and adjusts between seat and the adjustable helical spring holder, and the rotary body drives structure receives the adjustment signal of CPU output and adjusts rotary body.
The method of stroke regulating of the present invention is used in the pressing mold processing procedure, comprises the steps:
(1) CPU stores each adjustable helical spring basic parameter, set the starting force of stroke regulating device, and set the power output and the adjustable helical spring deflection of oil hydraulic cylinder, according to the power output of oil hydraulic cylinder, adjustable helical spring quantity and set adjustable helical spring stressed respectively at the relative position of mould;
(2) according to each adjustable helical spring stressed and deflection to calculate its coefficient of elasticity, obtain the angle that rotary body rotates according to basic parameter with the interpolation method, and utilize the rotary body drives structure that rotary body is gone to suitable angle;
(3) patrix is positioned initial position, makes upper and lower mould keep suitable distance, inject the raw material of fusion in order to feeding machine by the side of upper and lower mould;
(4) utilize the molten plastic of feeding machine, plastics are injected in the counterdie, when feeding machine is finished when injecting raw material the moving-wire the during patrix that gets out while you can compacting by the side of upper and lower mould with proper volume;
(5) start the oil hydraulic cylinder output pressure, with oil hydraulic cylinder pressing plate, stroke upper plate, adjustable helical spring, stroke lower plate, upper molded plate and patrix together to the direction closing of counterdie, and the raw material that begins pressure is acted on fusion in the counterdie;
(6) raw material of the interior fusion of counterdie forces fused raw material to flow toward the less place of pressure because of the pressure of oil hydraulic cylinder, and pushes residual air and discharged by airway, and the raw material of fusion riddles in the closed mould cavity of upper and lower mould formation;
(7) cooling that blows slowly of the raw material Yin Mowen of fusion and solidify and airway in the curing of raw material, cause pressurize to raw material in the die cavity, the raw material in the die cavity forms back-pressure to the pressure of oil hydraulic cylinder output;
(8) raw material in the die cavity oil hydraulic cylinder maintain static and the pressurize of stroke regulating device under, be able to till goods solidify fully, and in the process of solidifying, goods shunk uniformly, improve the optimization of product surface;
(9) by each adjustable helical spring displacement sensing device the signal of displacement is sent to CPU;
(10) patrix returns to initial position and ejects goods, finishes hot pressing program once;
(11) CPU is with the displacement signal conversion of adjustable helical spring displacement sensing device, obtain eject on the goods margin of error that measures with respect to adjustable helical spring position after, calculate the stressed margin of error of adjustable helical spring more respectively, revise each adjustable helical spring deflection and stressed respectively;
(12), return step (2), to use as next pressing mold circulation time according to stressed and deflection.
Wherein:
The position is set adjustable helical spring and quantity is to decide to use mold shape and size.
Pitch on rotary body and the public housing be subjected to the helical spring pitch of starting force consistent, not moved by the rotary body drives structure.
Be connected with the leverage that has bigger deflection and increase its precision between several stroke regulating devices and the mould.
The stroke regulating device is provided with starting force, be subjected to tension set when the leverage compressive deformation causes the device of stroke regulating, and the deflection of leverage is less than the deflection of the device of stroke regulating.
A kind of method of stroke regulating is used in the variable volume mold filling processing procedure, it is characterized in that it comprises the steps:
(1) CPU stores each adjustable helical spring basic parameter, set the pressure that the starting force of stroke regulating device, the pressure of setting initial ejaculation and back segment penetrate, and set adjustable helical spring deflection, the pressure, the adjustable helical spring quantity that penetrate according to back segment reach adjustable helical spring stressed to set respectively at the relative position of mould;
(2) according to each adjustable helical spring stressed and deflection to calculate its coefficient of elasticity, obtain the angle that rotary body rotates according to basic parameter with the interpolation method, and utilize the rotary body drives structure that rotary body is gone to suitable angle;
(3) locked mode closure is opened in airway and the molten plastic injection die cavity with proper volume, and initial ejaculation pressure is finished the part mold filling of fixed volume in the die cavity;
(4) closed airway starts back segment and penetrates pressure, and the part filling of variable volume die cavity is finished, and the halt of mobile mould is at the equalization point of the stressed of stroke regulating device with the variable volume cavity pressure;
(5) plastics in the die cavity are able to till goods solidify fully under the pressurize of stroke regulating device, and in the process of solidifying goods are shunk uniformly, improve the optimization of product surface;
(6) with each adjustable helical spring displacement sensing device the signal of displacement is sent to CPU;
(7) die sinking ejects goods, finishes variable volume mold filling program one time;
(8) CPU is with the displacement signal conversion of adjustable helical spring displacement sensing device, obtain eject on the goods margin of error that measures with respect to adjustable helical spring position after, calculate the stressed margin of error of adjustable helical spring out of the ordinary again, revise each adjustable helical spring deflection and stressed respectively;
(9), return step (2), to use as next variable volume mold filling circulation time according to stressed and deflection.
The computing flow process of CPU comprises:
(1) CPU stores each adjustable helical spring basic parameter;
(2) obtain the power output of processing procedure and set adjustable helical spring deflection;
(3) according to adjustable helical spring at the relative position of stroke regulating device, calculate that it is stressed;
(4) calculate each adjustable helical spring coefficient of elasticity according to stressed and deflection;
(5) CPU calculates the angle that adjustable helical spring should rotate according to each adjustable helical spring basic parameter with the interpolation method;
(6) behind the product molding, CPU obtains and measures the margin of error and the adjustable helical spring deflection thereof of goods with respect to each adjustable helical spring position;
(7) revise each adjustable helical spring deflection and stressed respectively, return step (4).
CPU must be before the start of stroke regulating device, stores the basic parameter of angle that each adjustable helical spring rotary body drives structure rotates, helical spring stressed and helical spring deflection in the stroke regulating device.
CPU obtains the parameter list that adjustable helical spring basic parameter becomes three-dimensional matrice, when adjustable helical spring rotary body drives structure revolution moves an angle, just adjustable helical spring changes its coefficient of elasticity, then produce its relative deflection with several fixing application of forces, become the parameter list of the two-dimensional matrix under this coefficient of elasticity, or the angle of rotating with the fixing application of force and several rotary bodies produces its relative deflection, become the parameter list of the two-dimensional matrix under this application of force, the application of force is obtained by the pressure machine, and deflection is obtained by adjustable helical spring displacement sensing device.
When applying to pressing mold step initial, earlier it is adjusted to by support bar, support bar adjustment seat and can adjusts the state that helical spring is adjusted the starting force that seat produces.
When applying to variable volume mold filling step initial, earlier it is adjusted to by support bar, support bar and adjusts the state that seat and adjustable helical spring are adjusted the starting force that seat produces.
Because apparatus of the present invention comprise the upper and lower plate of stroke, support bar, adjustable helical spring and CPU; Adjustable helical spring has the sensor that is used to measure its stressed back length variations displacement, and will measure signal and deliver to CPU, and makes the rotary body drives structure receive the adjustment signal driving rotary body of CPU output; The inventive method comprise set adjustable helical spring stressed, drive rotary body, raw material, compression moulding and the pressurize of injecting fusion, adjustable helical spring displacement sensing device and the signal of displacement is sent to CPU, die sinking finishes the hot pressing program, by CPU the conversion of displacement signal calculated and revise adjustable helical spring deflection and stressed and calculate angle that rotary body rotates and rotary body is gone to suitable angle with the interpolation method.In pressing mold and variable volume mold filling processing procedure, by be arranged at displacement sensing device on the adjustable helical spring grasp the data of helical spring stressed back distortion and obtain eject the margin of error that measures with respect to adjustable helical spring position on the goods after, and by after the CPU analysis, to adjust signal and deliver to the rotary body drives structure, use and adjust helical spring coefficient of elasticity, make the margin of error and the progressive error thereof that to revise entire die plane stroke in the pressing mold processing procedure at any time, make variable volume mold filling processing procedure can revise the displacement and the progressive error thereof of whole mobile mould at any time; Can replace the part of in the past judging the processing procedure problem with the present invention, can effectively reduce the fraction defective of die products, effectively reduce production cost with empirical method; On the mould applicable to different shape, will not produce efficiency variance because of mold shape; Promptly in the identical pressing mold processing procedure of the application of force of oil hydraulic cylinder, can adjust the margin of error of entire die plane stroke at any time and penetrate the displacement that to adjust its whole mobile mould in the identical variable volume mold filling processing procedure of pressure at any time at back segment, not only adjust the displacement of mobile mould in the margin of error of mould plane stroke in the pressing mold processing procedure and the variable volume mold filling processing procedure at any time, and reduce goods fraction defective and production cost, thereby reach the purpose of this utility model.
Description of drawings
Fig. 1, for applying to the method for stroke regulating of the present invention and the adjustable helical spring structure schematic sectional view of device thereof.
Fig. 2, apply to the enforcement diagrammatic side view of pressing mold processing procedure for the method for stroke regulating of the present invention and device thereof.
Fig. 3, apply to the enforcement schematic isometric of pressing mold processing procedure for the method for stroke regulating of the present invention and device thereof.
Fig. 4, apply to the implementation method block diagram of pressing mold processing procedure for the method for stroke regulating of the present invention and device thereof.
Fig. 5, for CPU operational flowchart of the present invention.
Fig. 6, apply to the enforcement diagrammatic side view of variable volume mold filling processing procedure for the method for stroke regulating of the present invention and device thereof.
Fig. 7, apply to variable volume mold filling processing procedure for the method for stroke regulating of the present invention and device thereof
The implementation method block diagram.
Fig. 8,, the method for stroke regulating of the present invention and three adjustable helical springs of device utilization thereof arrange schematic diagram for being arranged at round stroke upper plate.
Fig. 9,, the method for stroke regulating of the present invention and 12 adjustable helical springs of device utilization thereof arrange schematic diagram for being arranged at round stroke upper plate.
Figure 10,, the method for stroke regulating of the present invention and four adjustable helical springs of device utilization thereof arrange schematic diagram for being arranged at square type stroke upper plate.
Figure 11,, the method for stroke regulating of the present invention and 16 adjustable helical springs of device utilization thereof arrange schematic diagram for being arranged at square type stroke upper plate.
Figure 12, for applying to the method for stroke regulating of the present invention and the diagrammatic side view that device is connected with leverage thereof.
Figure 13, apply to the enforcement diagrammatic side view (connection leverage) of round mould for the method for stroke regulating of the present invention and device thereof.
Figure 14, apply to the enforcement diagrammatic side view (connection leverage) of square pattern tool for the method for stroke regulating of the present invention and device thereof.
The specific embodiment
As shown in Figure 1, the adjustable helical spring 1 that applies to the device of stroke regulating of the present invention comprises public housing 11, parent shell 12 and the rotary body 13 that is driven by drives structure.Rotary body 13 internal diameter appropriate locations are provided with the resistance body 131 that plural number contacts with the plain line 141 of helical spring 14.By the spring constant size of plural resistance body 131 for adjustment helical spring 14.And the present invention adds displacement transducer and rotary body drives structure with above-mentioned adjustable helical spring 1, and the beginning becomes very important member among the present invention.
As Fig. 2, shown in Figure 3, when the method for stroke regulating of the present invention and device thereof apply in the pressing mold processing procedure, stroke regulating device of the present invention is to be arranged at 22 of oil hydraulic cylinder pressing plate 21 and upper molded plates, and it comprises the stroke upper plate 23 that combines with oil hydraulic cylinder pressing plate 21, the stroke lower plate 24 that combines with upper molded plate 22, support bar 25, adjustable helical spring 26 and CPU 7.
Stroke upper plate 23 is provided with several adjustable helical springs and adjusts seat 231 and several support bars adjustment seat 232.
Stroke lower plate 24 is provided with several adjustable helical spring holders 241 and several support bar holders 242.
Support bar 25 two ends are arranged at the support bar of stroke upper plate 23 respectively and adjust on the support bar holder 242 of seat 232 and stroke lower plate 24, when the stroke regulating device is subjected to external force and when changing height, support bar 25 does not stress.When the stroke regulating device was not subjected to external force, support bar 25 bore the starting force that the stroke regulating device is set, and the adjustment so that the initial length and the cooperation support bar of support bar 25 are adjusted seat 232 can change the stroke regulating height of devices.Support bar 25 usage quantities and arrangement mode can be according to the settings that needs of pressing mold.
Adjustable helical spring 26 two ends are arranged at the adjustable helical spring of stroke upper plate 23 respectively and adjust on the adjustable helical spring holder 241 of seat 231 and stroke lower plate 24.
CPU 7 is to set the stressed and deflection of each adjustable helical spring 26 at the relative position of mould according to total application of force of processing procedure and adjustable helical spring 26, and the margin of error after receiving by the adjustable helical spring 26 of displacement sensing device 261 outputs the deflection after stressed and obtaining product molding, revise the stressed and deflection of each adjustable helical spring 26 then, and with the processing that compares of the basic parameter of adjustable helical spring 26, and output adjustment signal makes each adjustable helical spring 26 reach the coefficient of elasticity of demand to use as next process cycle to each rotary body drives structure 263.By circulation adjustment modes of the present invention, expectation with convergence method in the process cycle number of times of minimum, make mould molding go out best manufactured goods, if cooperate the margin of error that reads goods automatically, the progressive error that is produced to adjust in the processing procedure at any time, the fraction defective of moulded products is minimized, so real control and the improvement that helps the mould processing procedure.
As shown in Figure 4, the method for stroke regulating of the present invention and device thereof are used in the pressing mold processing procedure and comprise the steps:
(1) CPU stores each adjustable helical spring basic parameter, set the starting force of stroke regulating device, and set the power output and the adjustable helical spring deflection of oil hydraulic cylinder, according to the power output of oil hydraulic cylinder, adjustable helical spring quantity and set adjustable helical spring stressed 301 respectively at the relative position of mould and just begin to set each adjustable helical spring deflection for equating;
(2) according to each adjustable helical spring stressed and deflection to calculate its coefficient of elasticity, obtain the angle that rotary body rotates according to basic parameter with the interpolation method, and utilize the rotary body drives structure that rotary body is gone to suitable angle 302;
(3) patrix is positioned initial position, makes upper and lower mould keep suitable distance, inject the raw material 303 of fusion in order to feeding machine by the side of upper and lower mould;
(4) utilize the molten plastic of feeding machine, plastics are injected in the counterdie, when feeding machine is finished when injecting raw material the moving-wire 304 the during patrix that gets out while you can compacting by the side of upper and lower mould with proper volume;
(5) start the oil hydraulic cylinder output pressure, with oil hydraulic cylinder pressing plate, stroke upper plate, adjustable helical spring, stroke lower plate, upper molded plate and patrix together to the direction closing of counterdie, and the raw material 305 that begins pressure is acted on fusion in the counterdie;
(6) raw material of the interior fusion of counterdie forces fused raw material to flow toward the less place of pressure because of the pressure of oil hydraulic cylinder, and pushes residual air and discharged by airway, and the raw material of fusion riddles the closed mould cavity interior 306 that upper and lower mould forms;
(7) cooling that blows slowly of the raw material Yin Mowen of fusion and solidify and airway in the curing of raw material, cause pressurize to raw material in the die cavity, the raw material in the die cavity forms back-pressure 307 to the pressure of oil hydraulic cylinder output;
(8) raw material in the die cavity oil hydraulic cylinder maintain static and the pressurize of stroke regulating device under, be able to till goods solidify fully, and in the process of solidifying, goods shunk uniformly, improve the optimization 308 of product surface;
(9) by each adjustable helical spring displacement sensing device the signal of displacement is sent to CPU 309;
(10) patrix returns to initial position and ejects goods, finishes hot pressing program 310 once;
(11) CPU is with the displacement signal conversion of adjustable helical spring displacement sensing device, obtain eject on the goods margin of error that measures with respect to adjustable helical spring position after, calculate the stressed margin of error of adjustable helical spring more respectively, revise each adjustable helical spring deflection and stressed 311 respectively;
(12), return step (2), to use 312 as next pressing mold circulation time according to stressed and deflection.
The function of the CPU of stroke regulating device of the present invention is after process cycle each time, promptly get the error amount of goods, adjust adjustable helical spring coefficient of elasticity more respectively, even also rotary body drives structure action drives rotary body goes to revise the margin of error of goods in order to next processing procedure.
As shown in Figure 5, CPU computing flow process comprises the steps:
(1) CPU stores the basic parameter 401 of angle that each adjustable helical spring rotary body drives, helical spring stressed, helical spring deflection;
(2) obtain the power output of processing procedure and set adjustable helical spring deflection 402, just make and to set each adjustable helical spring deflection and equate;
(3) according to adjustable helical spring at the relative position of stroke regulating device, calculate its stressed 403;
(4) calculate each adjustable helical spring coefficient of elasticity 404 according to stressed and deflection;
(5) CPU calculates the angle 405 that adjustable helical spring should rotate according to each adjustable helical spring basic parameter with the interpolation method;
(6) behind the product molding, CPU obtains and measures the margin of error and the adjustable helical spring deflection 406 thereof of goods with respect to each adjustable helical spring position;
(7) revise each adjustable helical spring deflection and stressed 407 respectively, return step (4).
As shown in Figure 6, when the method for stroke regulating of the present invention and device thereof are used in the variable volume mold filling processing procedure, stroke regulating device 2 of the present invention is arranged at 52 of cope match-plate pattern 51 and mobile moulds, and the member of its composition all the pressing mold processing procedure with above-mentioned is identical.
As shown in Figure 7, the method for stroke regulating of the present invention and device thereof are used in variable volume mold filling processing procedure and comprise the steps:
(1) CPU stores each adjustable helical spring basic parameter, set the pressure that the starting force of stroke regulating device, the pressure of setting initial ejaculation and back segment penetrate, and set adjustable helical spring deflection, the pressure that penetrates according to back segment, adjustable helical spring quantity and adjustable helical spring stressed 601 to set respectively at the relative position of mould just begin to set each adjustable helical spring deflection for equating;
(2) according to each adjustable helical spring stressed and deflection to calculate its coefficient of elasticity, obtain the angle that rotary body rotates according to basic parameter with the interpolation method, and utilize the rotary body drives structure that rotary body is gone to suitable angle 602;
(3) locked mode closure is opened in airway and the molten plastic injection die cavity with proper volume, and initial ejaculation pressure finishes 603 with the part mold filling of fixed volume in the die cavity;
(4) closed airway starts back segment and penetrates pressure, and the part filling of variable volume die cavity is finished, and the halt of mobile mould is at the equalization point 604 of the stressed of stroke regulating device with the variable volume cavity pressure;
(5) plastics in the die cavity are able to till goods solidify fully under the pressurize of stroke regulating device, and in the process of solidifying goods are shunk uniformly, improve the optimization 605 of product surface;
(6) with each adjustable helical spring displacement sensing device the signal of displacement is sent to CPU 606;
(7) die sinking ejects goods, finishes variable volume mold filling program 607 one time;
(8) CPU is with the displacement signal conversion of adjustable helical spring displacement sensing device, obtain eject on the goods margin of error that measures with respect to adjustable helical spring position after, calculate the stressed margin of error of adjustable helical spring out of the ordinary again, revise each adjustable helical spring deflection and stressed 608 respectively;
(9), return step (2), to use 609 as next variable volume mold filling circulation time according to stressed and deflection.
As shown in Figure 8, stroke regulating device of the present invention can be according to the needs of pressing mold, in round stroke upper plate 23 three adjustable helical springs 26 are set, round stroke upper plate 23 is according to 3 principle and the convenience of CPU 7 on calculating that become one side, and stroke regulating device of the present invention comprises that three are distributed in adjustable helical spring 26 on 120 ° of peripheries of concentric circles.
As shown in Figure 9, stroke regulating device of the present invention can be provided with 12 adjustable helical springs 26 in round stroke upper plate 23 according to the needs of pressing mold.When stroke regulating device of the present invention applied to relatively large round stroke upper plate, stroke regulating device of the present invention comprised that 12 are distributed in adjustable helical spring 26 on concentrically ringed 120 ° of peripheries such as four.Each concentric circles is provided with three adjustable helical springs 26, and adjustable helical spring 26 is to center of circle word order.
As shown in figure 10, stroke regulating device of the present invention can be provided with four adjustable helical springs 26 in the stroke upper plate 23a of square type according to the needs of pressing mold.For the convenience on calculating, stroke regulating device of the present invention comprises four adjustable helical springs 26 that are distributed on two cornerwise types such as square such as the heart such as grade, promptly sets up adjustable helical spring 26 separately in four corners of waiting heart square type.
As shown in figure 11, stroke regulating device of the present invention can be provided with the adjustable helical spring 26 of ten six roots of sensation in the stroke upper plate 23a of square type according to the needs of pressing mold.When stroke regulating device of the present invention applied to the stroke upper plate 23a of relatively large square type, stroke regulating device of the present invention comprised that ten six roots of sensation are distributed in two cornerwise four adjustable helical springs 26 that wait on the heart square type.Each waits four corners of heart square type to set up an adjustable helical spring 26 separately, and adjustable helical spring 26 is to square type center word order.
Also can be as shown in figure 12, stroke regulating device of the present invention is connected with leverage, so that it has bigger deflection, increases its accuracy.The present invention includes one or the device 2 of several stroke regulatings, the device 2 of each stroke regulating is provided with starting force, when leverage 8 compressive deformations make the device 2 of stroke regulating be subjected to tension set, the deflection of leverage 8 is less than the deflection of the device 2 of stroke regulating, and stressed and deformation energy therefore of the present invention gets precision preferably.
As shown in figure 13, the stroke regulating device that the present invention is connected with leverage 8 cooperates when applying to use on the round mould, and then 2 in the device of stroke regulating of the present invention can be provided with leverage 8 sides according to 120 ° angle, has given play to best effect to make it.
As shown in figure 14, the stroke regulating device that the present invention is connected with leverage 8 cooperates when applying to use on the rectangular mould, and then 2 in the device of stroke regulating of the present invention can be arranged at four jiaos of leverage 8, has given play to best effect to make it.
The method of stroke regulating of the present invention and device thereof when mutually comparing with other located by prior art, have more following advantage:
One, the method for stroke regulating of the present invention and device thereof are in pressing mold and variable volume mold filling system In the journey, by being arranged at the stressed rear distortion of displacement sensing device crawl helical spring on the adjustable spiral spring After data and obtaining ejects the margin of error that measures with respect to the adjustable spiral spring position on the goods, and by in Central Processing Unit will be adjusted signal and deliver to the rotary body drives structure after analyzing, and use and adjust helical spring bullet Property coefficient makes the margin of error and the progressive error thereof that can at any time revise whole mold plane stroke in the pressing mold processing procedure, Make variable volume mold filling processing procedure can at any time revise displacement and the progressive error thereof of whole mobile mould.
Two, the method for stroke regulating of the present invention and device thereof can replace in the past and judge with empirical method The part of processing procedure problem, so mode can effectively reduce the fraction defective of die products, effectively reduce Production cost.
Three, the method for stroke regulating of the present invention and device thereof, on the mould applicable to various shapes, Will be not because of mold shape generation efficiency difference.
Claims (12)
1, a kind of stroke regulating device is characterized in that it comprises stroke upper plate, stroke lower plate, support bar, adjustable helical spring and CPU; Be respectively arranged with several adjustable helical springs on the stroke upper plate and adjust seat and several support bars adjustment seat; The stroke lower plate is provided with several adjustable helical spring holders and several support bar holders; The support bar two ends are arranged at the support bar of the upper and lower plate of stroke respectively and adjust on seat and the support bar holder, by adjusting the distance initial between the upper and lower plate of stroke and the starting force of support; CPU receive the adjustable helical spring of being exported by the displacement sensing device after stressed deflection and the margin of error behind the product molding, and compare with basic parameter and to handle back output and adjust signal to the rotary body drives structure, make adjustable helical spring reach the coefficient of elasticity of demand; Adjustable helical spring has the sensor that is used to measure its stressed back length variations displacement, and will measure signal and deliver to CPU, and it has public housing, parent shell, rotary body and reaches the drives structure that combines with it; Adjustable helical spring is arranged at the adjustable helical spring of the upper and lower plate of stroke and adjusts between seat and the adjustable helical spring holder, and the rotary body drives structure receives the adjustment signal of CPU output and adjusts rotary body.
2, stroke regulating device according to claim 1 is characterized in that described adjustable helical spring is provided with the position and quantity is to decide to use mold shape and size.
3, stroke regulating device according to claim 1, it is characterized in that on described rotary body and the public housing pitch be subjected to the helical spring pitch of starting force consistent, not moved by the rotary body drives structure.
4, stroke regulating device according to claim 1 is characterized in that being connected with the leverage that has bigger deflection and increase its precision between described several stroke regulating devices and the mould.
5, stroke regulating device according to claim 4, it is characterized in that described stroke regulating device is provided with starting force, be subjected to tension set when the leverage compressive deformation causes the device of stroke regulating, and the deflection of leverage is less than the deflection of the device of stroke regulating.
6. the method for a stroke regulating is used in the pressing mold processing procedure, it is characterized in that it comprises the steps:
(1) CPU stores each adjustable helical spring basic parameter, set the starting force of stroke regulating device, and set the power output and the adjustable helical spring deflection of oil hydraulic cylinder, according to the power output of oil hydraulic cylinder, adjustable helical spring quantity and set adjustable helical spring stressed respectively at the relative position of mould;
(2) according to each adjustable helical spring stressed and deflection to calculate its coefficient of elasticity, obtain the angle that rotary body rotates according to basic parameter with the interpolation method, and utilize the rotary body drives structure that rotary body is gone to suitable angle;
(3) patrix is positioned initial position, makes upper and lower mould keep suitable distance, inject the raw material of fusion in order to feeding machine by the side of upper and lower mould;
(4) utilize the molten plastic of feeding machine, plastics are injected in the counterdie, when feeding machine is finished when injecting raw material the moving-wire the during patrix that gets out while you can compacting by the side of upper and lower mould with proper volume;
(5) start the oil hydraulic cylinder output pressure, with oil hydraulic cylinder pressing plate, stroke upper plate, adjustable helical spring, stroke lower plate, upper molded plate and patrix together to the direction closing of counterdie, and the raw material that begins pressure is acted on fusion in the counterdie;
(6) raw material of the interior fusion of counterdie forces fused raw material to flow toward the less place of pressure because of the pressure of oil hydraulic cylinder, and pushes residual air and discharged by airway, and the raw material of fusion riddles in the closed mould cavity of upper and lower mould formation;
(7) cooling that blows slowly of the raw material Yin Mowen of fusion and solidify and airway in the curing of raw material, cause pressurize to raw material in the die cavity, the raw material in the die cavity forms back-pressure to the pressure of oil hydraulic cylinder output;
(8) raw material in the die cavity oil hydraulic cylinder maintain static and the pressurize of stroke regulating device under, be able to till goods solidify fully, and in the process of solidifying, goods shunk uniformly, improve the optimization of product surface;
(9) by each adjustable helical spring displacement sensing device the signal of displacement is sent to CPU;
(10) patrix returns to initial position and ejects goods, finishes hot pressing program once;
(11) CPU is with the displacement signal conversion of adjustable helical spring displacement sensing device, obtain eject on the goods margin of error that measures with respect to adjustable helical spring position after, calculate the stressed margin of error of adjustable helical spring more respectively, revise each adjustable helical spring deflection and stressed respectively;
(12), return step (2), to use as next pressing mold circulation time according to stressed and deflection.
7, the method for stroke regulating according to claim 6 is characterized in that describedly when applying to pressing mold step initial, earlier it is adjusted to by support bar, support bar adjustment seat and can adjusts the state that helical spring is adjusted the starting force that seat produces.
8, a kind of method of stroke regulating is used in the variable volume mold filling processing procedure, it is characterized in that it comprises the steps:
(1) CPU stores each adjustable helical spring basic parameter, set the pressure that the starting force of stroke regulating device, the pressure of setting initial ejaculation and back segment penetrate, and set adjustable helical spring deflection, the pressure, the adjustable helical spring quantity that penetrate according to back segment reach adjustable helical spring stressed to set respectively at the relative position of mould;
(2) according to each adjustable helical spring stressed and deflection to calculate its coefficient of elasticity, obtain the angle that rotary body rotates according to basic parameter with the interpolation method, and utilize the rotary body drives structure that rotary body is gone to suitable angle;
(3) locked mode closure is opened in airway and the molten plastic injection die cavity with proper volume, and initial ejaculation pressure is finished the part mold filling of fixed volume in the die cavity;
(4) closed airway starts back segment and penetrates pressure, and the part filling of variable volume die cavity is finished, and the halt of mobile mould is at the equalization point of the stressed of stroke regulating device with the variable volume cavity pressure;
(5) plastics in the die cavity are able to till goods solidify fully under the pressurize of stroke regulating device, and in the process of solidifying goods are shunk uniformly, improve the optimization of product surface;
(6) with each adjustable helical spring displacement sensing device the signal of displacement is sent to CPU;
(7) die sinking ejects goods, finishes variable volume mold filling program one time;
(8) CPU is with the displacement signal conversion of adjustable helical spring displacement sensing device, obtain eject on the goods margin of error that measures with respect to adjustable helical spring position after, calculate the stressed margin of error of adjustable helical spring out of the ordinary again, revise each adjustable helical spring deflection and stressed respectively;
(9), return step (2) according to stressed and deflection; To use as next variable volume mold filling circulation time.
9, the method for stroke regulating according to claim 8, it is characterized in that describedly when applying to variable volume mold filling step initial, earlier it is adjusted to by support bar, support bar and adjusts the state that seat and adjustable helical spring are adjusted the starting force that seat produces.
10,, it is characterized in that the computing flow process of described CPU comprises according to the method for claim 6 or 8 described stroke regulatings:
(1) CPU stores each adjustable helical spring basic parameter;
(2) obtain the power output of processing procedure and set adjustable helical spring deflection;
(3) according to adjustable helical spring at the relative position of stroke regulating device, calculate that it is stressed;
(4) calculate each adjustable helical spring coefficient of elasticity according to stressed and deflection;
(5) CPU calculates the angle that adjustable helical spring should rotate according to each adjustable helical spring basic parameter with the interpolation method;
(6) behind the product molding, CPU obtains and measures the margin of error and the adjustable helical spring deflection thereof of goods with respect to each adjustable helical spring position;
(7) revise each adjustable helical spring deflection and stressed respectively, return step (4).
11, the method for stroke regulating according to claim 10, it is characterized in that described CPU must be before the start of stroke regulating device, in the stroke regulating device, store the basic parameter of angle that each adjustable helical spring rotary body drives structure rotates, helical spring stressed and helical spring deflection.
12, the method of stroke regulating according to claim 10, it is characterized in that described CPU obtains the parameter list that adjustable helical spring basic parameter becomes three-dimensional matrice, when adjustable helical spring rotary body drives structure revolution moves an angle, just adjustable helical spring changes its coefficient of elasticity, then produce its relative deflection with several fixing application of forces, become the parameter list of the two-dimensional matrix under this coefficient of elasticity, or the angle of rotating with the fixing application of force and several rotary bodies produces its relative deflection, become the parameter list of the two-dimensional matrix under this application of force, the application of force is obtained by the pressure machine, and deflection is obtained by adjustable helical spring displacement sensing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01131009XA CN1195616C (en) | 2001-08-30 | 2001-08-30 | Stroke regulating method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01131009XA CN1195616C (en) | 2001-08-30 | 2001-08-30 | Stroke regulating method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1403264A CN1403264A (en) | 2003-03-19 |
| CN1195616C true CN1195616C (en) | 2005-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB01131009XA Expired - Fee Related CN1195616C (en) | 2001-08-30 | 2001-08-30 | Stroke regulating method and device |
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| CN (1) | CN1195616C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104457541A (en) * | 2014-11-13 | 2015-03-25 | 奇瑞汽车股份有限公司 | Automobile spiral spring displacement measurement method |
| TWI674158B (en) * | 2018-06-29 | 2019-10-11 | 葉川源 | Mold adjustment auxiliary system |
| CN113063568B (en) * | 2019-12-12 | 2022-07-26 | 中车唐山机车车辆有限公司 | Piston valve damping detection method, terminal device and storage medium |
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2001
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| CN1403264A (en) | 2003-03-19 |
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