CN202088451U - Thermoforming machine - Google Patents
Thermoforming machine Download PDFInfo
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- CN202088451U CN202088451U CN 201120175615 CN201120175615U CN202088451U CN 202088451 U CN202088451 U CN 202088451U CN 201120175615 CN201120175615 CN 201120175615 CN 201120175615 U CN201120175615 U CN 201120175615U CN 202088451 U CN202088451 U CN 202088451U
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Abstract
A thermoforming machine comprises a machine frame, a fixed die platform, a moving die platform and a moving die platform lifting driving mechanism, wherein dies are installed on the fixed die platform and the moving die platform, the moving die platform lifting driving mechanism is a cam mechanism or a link mechanism, and the moving die platform is connected with a power output end of the moving die platform lifting driving mechanism. The thermoforming machine is characterized by further comprising a fixed die platform position adjusting mechanism comprising at least one fixed die platform position adjusting hydraulic cylinder capable of exerting a thrust to the fixed die platform in a direction towards the moving die platform. The thermoforming machine is provided with the fixed die platform position adjusting hydraulic cylinder which can exert the fixed thrust to the fixed die platform in the direction towards the moving die platform. When unexpected conditions cause die closing of die platforms or cutting overload, the designed output pressure of the fixed die platform position adjusting hydraulic cylinder is exceeded, then the fixed thrust forces the fixed die platform position adjusting hydraulic cylinder to return, thereby effectively avoiding the damage of the die platforms, dies or the moving die platform lifting driving mechanism. The thermoforming machine has the function of self-protection.
Description
Technical field
The utility model relates to a kind of thermoforming machine.
Background technology
Thermoforming machine is generally used for various plastic products are made, are processed into to plastics materials.
Thermoforming machine generally comprises frame, cover half platform, dynamic model platform and dynamic model platform lift drive mechanism; On cover half platform, the dynamic model platform mould is installed; Dynamic model platform lift drive mechanism adopts cam mechanism or linkage usually, and is wherein comparatively common with cam mechanism; The dynamic model platform is connected with the clutch end of dynamic model platform lift drive mechanism.Usually the cover half platform is located at dynamic model platform top (the cover half platform also can be located at dynamic model platform below), and the cover half platform can be fixedly mounted on the frame.In order to make the steady lifting of dynamic model platform, above-mentioned frame comprises a plurality of leads (being generally four leads) of trend up and down, the cover half platform is fixedly mounted on the lead usually, be typically provided with a plurality of guide pin bushings or guide through hole on the dynamic model platform, and the correspondingly cooperation identical with lead quantity of guide pin bushing or guide through hole, lead is in guide pin bushing or the guide through hole.In addition, thermoforming machine also comprises material draw-gear that is used for convey materials and the finished product collection device that is used to collect finished product usually, also can comprise the clout rolling-up mechanism that is used for the rolling clout.
When carrying out thermoforming, dynamic model platform lift drive mechanism drives the dynamic model platform and does elevating movement, realizes mold closing and die sinking; Behind the mold closing, to the plastics materials hot briquetting, obtain plastic products by mould, a plurality of plastic products unit connects in flakes on the plastic products.The plastic products that obtain after the hot briquetting form each independently plastic products unit (being finished product) through shear treatment.In order to make the thermoforming machine structure compact more, and make clipped position more accurate, at present more existing thermoforming machines lump together moulding, shear-cutting, that is to say that the mould of installing on above-mentioned cover half platform, the dynamic model platform comprises mould and shearing die two parts, like this, after mold closing is finished moulding, dynamic model platform lift drive mechanism drives the dynamic model platform to be continued to move a certain distance (as 1mm) towards the cover half platform, and the goods of forming are sheared, and forms each independently plastic products unit.Because the cover half platform is fixedly mounted on the lead; therefore when dynamic model platform lift drive mechanism drives dynamic model platform and cover half platform mold closing and shears; die height can't change; when running into emergency case; so that when mold closing or shearing overload, tend to cause the damage of holding block, mould or dynamic model platform lift drive mechanism.In addition, when thermoforming machine brings into operation, because temperature and other parameter are not adjusted to perfect condition as yet, therefore the moulded products of this moment is often undesirable, yet thermoforming machine will be sheared and discharge by undesirable moulded products, pollute the workshop internal environment, increase the labour intensity of operating personnel's dressing shop.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of thermoforming machine with self-protection function, and this thermoforming machine can effectively be avoided mould platform, mould or dynamic model platform lift drive mechanism damaged when mold closing or shearing overload.The technical scheme that adopts is as follows:
A kind of thermoforming machine, comprise frame, cover half platform, dynamic model platform and dynamic model platform lift drive mechanism, on cover half platform, the dynamic model platform mould is installed, dynamic model platform lift drive mechanism is cam mechanism or linkage, the dynamic model platform is connected with the clutch end of dynamic model platform lift drive mechanism, it is characterized in that: described thermoforming machine also comprises cover half platform position adjusting mechanism, and cover half platform position adjusting mechanism comprises that at least one can apply cover half platform position adjustments hydraulic cylinder towards the thrust of dynamic model platform to the cover half platform.
Above-mentioned cover half platform position adjustments hydraulic cylinder is located between frame and the cover half platform, and cover half platform position adjustments hydraulic cylinder is generally trend up and down.
Under the situation above the cover half platform is located at the dynamic model platform, above-mentioned cover half platform position adjustments hydraulic cylinder is usually located at cover half platform top, and can be provided with by one of following 6 kinds of modes: the cylinder body of (1) cover half platform position adjustments hydraulic cylinder is connected with frame, and the piston rod of cover half platform position adjustments hydraulic cylinder is connected with the cover half platform; (2) cylinder body of cover half platform position adjustments hydraulic cylinder is connected with frame, and the piston rod of cover half platform position adjustments hydraulic cylinder contacts with the cover half platform; (3) cylinder body of cover half platform position adjustments hydraulic cylinder contacts with frame, and the piston rod of cover half platform position adjustments hydraulic cylinder is connected with the cover half platform; (4) cylinder body of cover half platform position adjustments hydraulic cylinder is connected with the cover half platform, and the piston rod of cover half platform position adjustments hydraulic cylinder is connected with frame; (5) cylinder body of cover half platform position adjustments hydraulic cylinder is connected with the cover half platform, and the piston rod of cover half platform position adjustments hydraulic cylinder contacts with frame; Perhaps the cylinder body of (6) cover half platform position adjustments hydraulic cylinder contacts with the cover half platform, and the piston rod of cover half platform position adjustments hydraulic cylinder is connected with frame.Like this, when the piston rod of cover half platform position adjustments hydraulic cylinder stretched out, cover half platform position adjustments hydraulic cylinder can apply downward thrust to the cover half platform.Adopt above-mentioned (2), (3), when (5) and (6) plant mode, usually answer the supporting resetting-mechanism (as spring) that is provided with, this resetting-mechanism can apply active force upwards to the cover half platform, make the cover half platform have the trend of rising, like this, after cover half platform position adjustments hydraulic cylinder was cancelled the thrust of cover half platform, this resetting-mechanism can make the cover half platform rise, and made cover half platform position adjustments hydraulic cylinder keep closely contacting with frame or cover half platform.
Under the situation below the cover half platform is located at the dynamic model platform, above-mentioned cover half platform position adjustments hydraulic cylinder is located at cover half platform below usually, and can be provided with by one of following 6 kinds of modes: the cylinder body of (1) cover half platform position adjustments hydraulic cylinder is connected with frame, and the piston rod of cover half platform position adjustments hydraulic cylinder is connected with the cover half platform; (2) cylinder body of cover half platform position adjustments hydraulic cylinder is connected with frame, and the piston rod of cover half platform position adjustments hydraulic cylinder contacts with the cover half platform; (3) cylinder body of cover half platform position adjustments hydraulic cylinder contacts with frame, and the piston rod of cover half platform position adjustments hydraulic cylinder is connected with the cover half platform; (4) cylinder body of cover half platform position adjustments hydraulic cylinder is connected with the cover half platform, and the piston rod of cover half platform position adjustments hydraulic cylinder is connected with frame; (5) cylinder body of cover half platform position adjustments hydraulic cylinder is connected with the cover half platform, and the piston rod of cover half platform position adjustments hydraulic cylinder contacts with frame; (6) cylinder body of cover half platform position adjustments hydraulic cylinder contacts with the cover half platform, and the piston rod of cover half platform position adjustments hydraulic cylinder is connected with frame.Like this, when the piston rod of cover half platform position adjustments hydraulic cylinder stretched out, cover half platform position adjustments hydraulic cylinder can apply thrust upwards to the cover half platform.Adopt above-mentioned (2), (3), when (5) and (6) plant mode, can rely on the gravity effect to make the cover half platform have downward trend, and cover half platform position adjustments hydraulic cylinder is closely contacted with frame or the maintenance of cover half platform; Also resetting-mechanism (as spring) can supportingly be set, this resetting-mechanism can apply downward active force to the cover half platform, make the cover half platform have downward trend, like this, after cover half platform position adjustments hydraulic cylinder is cancelled the thrust of cover half platform, this resetting-mechanism can make the cover half platform descend, and makes cover half platform position adjustments hydraulic cylinder keep closely contacting with frame or cover half platform.
In first kind of preferred version, above-mentioned frame comprises a plurality of leads of trend up and down; The dynamic model platform is provided with a plurality of first guide pin bushings or first guide through hole, and the correspondingly cooperation identical of first guide pin bushing or first guide through hole with lead quantity, and lead is in first guide pin bushing or first guide through hole; The cover half platform is located at dynamic model platform top, and the cover half platform is provided with a plurality of second guide pin bushings or second guide through hole, and the correspondingly cooperation identical of second guide pin bushing or second guide through hole with lead quantity, and lead is in second guide pin bushing or second guide through hole; Cover half platform position adjusting mechanism comprises a plurality of cover half platform position adjustments hydraulic cylinders, and cover half platform position adjustments hydraulic cylinder is located at cover half platform top, and cover half platform position adjustments hydraulic cylinder is identical with lead quantity and corresponding one by one; Cover half platform position adjustments hydraulic cylinder is tubular, and cover half platform position adjustments hydraulic cylinder comprises tubular cylinder body and trunk-piston, and the tubular cylinder body is located at the outside of trunk-piston, and trunk-piston is enclosed within on the lead, and the tubular cylinder body is fixedly mounted on the cover half platform; Have thread segment on the lead, adjusting nut is installed on the thread segment, adjusting nut is positioned at the trunk-piston top, is provided with thrust bearing between adjusting nut and the trunk-piston, and adjusting nut, thrust bearing, trunk-piston be closely contact successively; Also be provided with on the frame and can apply upwards active force and make the cover half platform have the resetting-mechanism of ascendant trend the cover half platform.Above-mentioned resetting-mechanism can adopt spring.In the preferred version, above-mentioned resetting-mechanism comprises a plurality of air bags, and air bag is identical with lead quantity and corresponding one by one, air bag is located at the lead top, the air bag top is provided with top board, the closely contact successively of top board, air bag, lead upper end, and top board is connected with the cover half platform by a plurality of pull bars; Because air bag is subjected to the co-extruded of top board and lead upper end, so air bag has tension force, to top board generation jacking active force, makes top board, pull bar and cover half platform on the rise.Each cover half platform position adjustments hydraulic cylinder synchronous action in the above-mentioned cover half platform position adjusting mechanism, and output pressure equates; By cover half platform position adjustments hydraulic cylinder is installed in each lead position, can make the suffered thrust of cover half platform balanced more.By rotating adjusting nut, can change the height and position of adjusting nut on lead; Under the effect of resetting-mechanism, adjusting nut, thrust bearing, trunk-piston be closely contact successively, therefore, the height and position of trunk-piston has just been determined in the lower end of adjusting nut, and is corresponding, the height and position of the connecting portion of tubular cylinder body, cover half platform and this tubular cylinder body of cover half platform position adjustments hydraulic cylinder also is determined, like this, by rotating adjusting nut, the position that can calibrate the cover half platform, make the cover half platform keep balance, and make die height accurate.
In a concrete scheme, in the above-mentioned cover half platform position adjustments hydraulic cylinder, trunk-piston comprises cylindrical shell and annular piston body, and the annular piston body is located on the lateral surface of cylindrical shell and with the cylindrical shell one and is connected; The inner edge of tubular cylinder body upper end is provided with the upper limit ring, and the inner edge of tubular cylinder body lower end is provided with circular bottom part; The annular piston body is located between upper limit ring and the circular bottom part, and the annular piston body contacts with the medial surface sealing of tubular cylinder body; Have hydraulic fluid chamber between the lower surface of the upper surface of circular bottom part and annular piston body, the tubular cylinder side wall is provided with the hydraulic oil that is communicated with hydraulic fluid chamber and imports and exports.Above-mentioned hydraulic fluid chamber is surrounded jointly by the upper surface of circular bottom part, the lower surface of annular piston body, the lateral surface of cylindrical shell and the medial surface of tubular cylinder body, and the contact site of trunk-piston and tubular cylinder body should keep sealing.When hydraulic fluid chamber fed high-pressure and hydraulic oil, hydraulic oil applied active force to the lower surface of annular piston body, trunk-piston was risen, until the upper surface and the above-mentioned upper limit loop contacts of annular piston body with respect to the tubular cylinder body.For the stroke that can make cover half platform position adjustments hydraulic cylinder more accurate, the upper surface of preferred above-mentioned circular bottom part is provided with the lower limit ring, when the hydraulic fluid chamber release, trunk-piston descends with respect to the tubular cylinder body, lower surface and lower limit loop contacts until the annular piston body, this moment, trunk-piston resetted, and upper limit ring and lower limit ring just define the stroke of trunk-piston jointly; Certainly, also the lower limit ring can be set, but in actual design, its cylindrical shell lower end was concordant with the lower end of tubular cylinder body when trunk-piston was resetted, this moment, the cylindrical shell lower end contacted with the upper surface of cover half platform, and trunk-piston no longer descends with respect to the tubular cylinder body.
For the ease of processing and assembling, above-mentioned tubular cylinder body generally includes annular seating and annular gland, and annular gland is connected with annular seating by securing member; Above-mentioned upper limit is located on the annular gland, and circular bottom part is located on the annular seating, and the part that cooperates with the annular piston body on the tubular cylinder body can be located on the annular seating or on the annular gland.In addition, the inboard of above-mentioned upper limit ring can fixedly mount a guide ring, and guide ring cooperates with above-mentioned cylindrical shell, makes trunk-piston rise or descend with respect to the tubular cylinder body more reposefully.
In second kind of preferred version, above-mentioned frame comprises a plurality of leads of trend up and down; The dynamic model platform is provided with a plurality of first guide pin bushings or first guide through hole, and the correspondingly cooperation identical of first guide pin bushing or first guide through hole with lead quantity, and lead is in first guide pin bushing or first guide through hole; The cover half platform is located at dynamic model platform below, and the cover half platform is provided with a plurality of second guide pin bushings or second guide through hole, and the correspondingly cooperation identical of second guide pin bushing or second guide through hole with lead quantity, and lead is in second guide pin bushing or second guide through hole; Cover half platform position adjusting mechanism comprises a plurality of cover half platform position adjustments hydraulic cylinders, and cover half platform position adjustments hydraulic cylinder is located at cover half platform below, and cover half platform position adjustments hydraulic cylinder is identical with lead quantity and corresponding one by one; Cover half platform position adjustments hydraulic cylinder is tubular, cover half platform position adjustments hydraulic cylinder comprises tubular cylinder body and trunk-piston, the tubular cylinder body is located at the outside of trunk-piston, trunk-piston is enclosed within on the lead, the tubular cylinder body is connected or contacts with the cover half platform and (that is to say, the tubular cylinder body can be fixedly mounted on the cover half platform, also can contact with cover half platform lower surface); Have thread segment on the lead, adjusting nut is installed on the thread segment, adjusting nut is positioned at the trunk-piston below, is provided with thrust bearing between adjusting nut and the trunk-piston, and adjusting nut, thrust bearing, trunk-piston be closely contact successively.Usually, also be provided with on the frame and can apply downward active force and make the cover half platform have the resetting-mechanism of downward trend the cover half platform; Also resetting-mechanism can be set, but make the cover half platform have downward trend by the gravity effect.
In the third preferred version, above-mentioned frame comprises a plurality of leads of trend up and down; The dynamic model platform is provided with a plurality of first guide pin bushings or first guide through hole, and the correspondingly cooperation identical of first guide pin bushing or first guide through hole with lead quantity, and lead is in first guide pin bushing or first guide through hole; The cover half platform is provided with a plurality of second guide pin bushings or second guide through hole, and the correspondingly cooperation identical of second guide pin bushing or second guide through hole with lead quantity, and lead is in second guide pin bushing or second guide through hole; Cover half platform position adjusting mechanism comprises a plurality of cover half platform position adjustments hydraulic cylinders, and cover half platform position adjustments hydraulic cylinder is identical with lead quantity and corresponding one by one; Cover half platform position adjustments hydraulic cylinder is tubular, cover half platform position adjustments hydraulic cylinder comprises tubular cylinder body and trunk-piston, the tubular cylinder body is located at the outside of trunk-piston, trunk-piston is enclosed within on the lead and with lead and is connected, the tubular cylinder body is fixedly mounted on the cover half platform (under the situation below the cover half platform is located at the dynamic model platform, also can the tubular cylinder body contacting with cover half platform lower surface).In this case, cover half platform position adjustments hydraulic cylinder can adopt single-action hydraulic cylinder or double acting hydraulic cylinder (motion of double acting hydraulic cylinder piston both direction all relies on hydraulic action to realize).When cover half platform position adjustments hydraulic cylinder adopts single-action hydraulic cylinder, the common also supporting resetting-mechanism that is provided with, this resetting-mechanism can apply active force to the cover half platform, make the cover half platform have the trend that dynamic model platform dorsad moves, like this, after cover half platform position adjustments hydraulic cylinder is cancelled the thrust of cover half platform, this resetting-mechanism can make the cover half platform dorsad the dynamic model platform move; Under the situation below the cover half platform is located at the dynamic model platform, resetting-mechanism can be set, but by gravity effect make the cover half platform have the dorsad dynamic model platform moves (promptly descend) trend.Each cover half platform position adjustments hydraulic cylinder synchronous action in the above-mentioned cover half platform position adjusting mechanism, and output pressure equates; By cover half platform position adjustments hydraulic cylinder is installed in each lead position, can make the suffered thrust of cover half platform balanced more.
In above-mentioned second kind of preferred version and the third preferred version, the concrete structure of cover half platform position adjustments hydraulic cylinder can be identical with first kind of preferred version.Under the situation below the cover half platform is located at the dynamic model platform, cover half platform position adjustments hydraulic cylinder stands upside down and places.
Above-mentioned cover half platform position adjustments hydraulic cylinder is generally the precise hydraulic cylinder, and its stroke (as 1mm) can design according to the thickness of goods, and usually, the stroke of above-mentioned cover half platform position adjustments hydraulic cylinder equals the progressive error of dynamic model platform between mold closing state and shearing condition.Like this, under the uninflated situation of cover half platform position adjustments hydraulic cylinder, when the dynamic model platform moves to the position of the most close cover half platform, closed moulding and goods not being sheared just in time; Under the situation of cover half platform position adjustments hydraulic cylinder pressurization, when the dynamic model platform moved towards the cover half platform, first closed moulding continued to move to the position of the most close cover half platform and goods are sheared then.
Above-mentioned cover half platform position adjusting mechanism also comprises the hydraulic cylinder control device that the state that is used to control each cover half platform position adjustments hydraulic cylinder switches.In order to be easy to realize the synchronization action of each cover half platform position adjustments hydraulic cylinder, and make each cover half platform position adjustments hydraulic cylinder output pressure size consistent, above-mentioned each cover half platform position adjustments hydraulic cylinder adopts same hydraulic cylinder control device to control usually.In the preferred version, above-mentioned hydraulic cylinder control device comprises compressed air source, pressure regulator valve, solenoid directional control valve, pneumohydraulic pressure-cylinder and branching block; The gas outlet of compressed air source is communicated with the air inlet of pressure regulator valve; Branching block is provided with a total oil inlet and outlet and a plurality of minutes oil inlet and outlets, the oil cylinder of pneumohydraulic pressure-cylinder is communicated with total oil inlet and outlet, and the branch oil inlet and outlet is identical with cover half platform position adjustments hydraulic cylinder quantity and be communicated with (promptly the hydraulic fluid chamber with cover half platform position adjustments hydraulic cylinder is communicated with) correspondingly with cover half platform position adjustments hydraulic cylinder; The cylinder of pneumohydraulic pressure-cylinder and empty oily changeover bobbin are connected with the gas outlet of pressure regulator valve through solenoid directional control valve.Above-mentioned solenoid directional control valve is used for controlling the flow direction of pneumohydraulic pressure-cylinder gas, usually can adopt two position switching valves, specify as follows: when solenoid directional control valve is in a position, the cylinder of pneumohydraulic pressure-cylinder is communicated with the gas outlet of pressure regulator valve, the empty oily changeover bobbin of pneumohydraulic pressure-cylinder then is in communication with the outside (perhaps being in communication with the outside by choke valve), this moment, compressed air entered in the cavity of cylinder, promoting cylinder piston and oil cylinder piston moves, hydraulic oil in the oil cylinder is released (this space-time oil changeover bobbin is transformed into high output hydraulic pressure with input air pressure), the hydraulic oil that flows out in oil cylinder enters in each cover half platform position adjustments hydraulic cylinder through branching block, makes cover half platform position adjustments hydraulic cylinder action and the cover half platform is applied thrust towards the dynamic model platform; When solenoid directional control valve switches to another position, the empty oily changeover bobbin of pneumohydraulic pressure-cylinder is communicated with the gas outlet of pressure regulator valve, the cylinder of pneumohydraulic pressure-cylinder then is in communication with the outside, this moment, compressed air entered in the cavity of empty oily changeover bobbin, promote cylinder piston and oil cylinder piston return, pneumohydraulic pressure-cylinder discharges high output hydraulic pressure, and each cover half platform position adjustments hydraulic cylinder also discharges its thrust to the cover half platform.Using the advantage of pneumohydraulic pressure-cylinder is by less input air pressure, can realize bigger output hydraulic pressure, does not need hydraulic pressure unit, and simple and compact for structure, the output pressure adjustment is easy, quick action, and easy care, noise is little.By pressure regulator valve, can adjust input air pressure easily and accurately, and make the input air pressure held stationary, thereby make the output pressure of pneumohydraulic pressure-cylinder be easy to adjustment and keep stable.Pneumohydraulic pressure-cylinder output high-pressure and hydraulic oil is given a plurality of cover half platform position adjustments hydraulic cylinder fuel feeding simultaneously, makes these a plurality of cover half platform position adjustments hydraulic cylinders all export the pressure that design needs, and allows the make-up machine operate as normal.
Thermoforming machine of the present utility model is provided with cover half platform position adjustments hydraulic cylinder; cover half platform position adjustments hydraulic cylinder can apply a certain size thrust towards the dynamic model platform to the cover half platform; when running into emergency case; when making the holding block mold closing or shearing overload; the design output pressure that surpasses cover half platform position adjustments hydraulic cylinder; force the backhaul of cover half platform position adjustments hydraulic cylinder, effectively avoid mould platform, mould or dynamic model platform lift drive mechanism damaged, have the self-protection function.In addition, when thermoforming machine brings into operation, temperature and other parameter are not adjusted to perfect condition as yet, and moulded products is often undesirable, make the backhaul of cover half platform position adjustments hydraulic cylinder this moment, thermoforming machine is not sheared goods, therefore goods still connect in flakes, by follow-up clout rolling-up mechanism rolling, are convenient to cleaning, the workshop internal environment can be do not polluted, the labour intensity of operating personnel's dressing shop can be reduced; After treating that goods reach requirement, the pressure that each cover half platform position adjustments hydraulic cylinder output design is needed normally moves thermoforming machine.
Description of drawings
Fig. 1 is the structural representation (cover half platform position adjustments hydraulic cylinder is pressurized state not) of the utility model preferred embodiment;
Fig. 2 is the enlarged drawing of A part among Fig. 1;
Fig. 3 is the schematic diagram of another state (cover half platform position adjustments hydraulic cylinder pressurized state) of the utility model preferred embodiment;
Fig. 4 is the enlarged drawing of A part among Fig. 3;
Fig. 5 is the structural representation of hydraulic cylinder control device in the utility model preferred embodiment;
Fig. 6 is the structural representation of the another kind of cover half platform of the utility model position adjustments hydraulic cylinder;
Fig. 7 is the structural representation of another cover half platform position adjustments hydraulic cylinder of the utility model.
The specific embodiment
As shown in Figures 1 to 4, this thermoforming machine comprises frame 1, cover half platform 2, dynamic model platform 3, dynamic model platform lift drive mechanism (dynamic model platform lift drive mechanism can adopt existing mechanism, is not described in detail at this) and cover half platform position adjusting mechanism.
On cover half platform 2, the dynamic model platform 3 mould 4 is installed, dynamic model platform lift drive mechanism is cam mechanism (or linkage), and dynamic model platform 3 is connected with the clutch end of dynamic model platform lift drive mechanism.
Frame 1 comprises four leads 5 of trend up and down; Dynamic model platform 3 is provided with four first guide pin bushings, 6, the first guide pin bushings 6 and cooperates correspondingly with lead 5, and lead 5 is in first guide pin bushing 6; Cover half platform 2 is located at dynamic model platform 3 tops, and cover half platform 2 is provided with four second guide through hole, 7, the second guide through hole 7 and cooperates correspondingly with lead 5, and lead 5 is in second guide through hole 7.
Cover half platform position adjusting mechanism comprises that four can apply towards the cover half platform position adjustments hydraulic cylinder 8 of the thrust (promptly can apply downward thrust to cover half platform 2) of dynamic model platform 3 and are used to control the hydraulic cylinder control device that the state of each cover half platform position adjustments hydraulic cylinder 8 switches cover half platform 2.
Cover half platform position adjustments hydraulic cylinder 8 is located at cover half platform 2 tops, and four cover half platform position adjustments hydraulic cylinders 8 are corresponding one by one with four leads 5.Cover half platform position adjustments hydraulic cylinder 8 is tubular, cover half platform position adjustments hydraulic cylinder 8 comprises tubular cylinder body 81 and trunk-piston 82, tubular cylinder body 81 is located at the outside of trunk-piston 82, and trunk-piston 82 is enclosed within on the lead 5, and tubular cylinder body 81 is fixedly mounted on the cover half platform 2.Trunk-piston 82 comprises cylindrical shell 821 and annular piston body 822, and annular piston body 822 is located on the lateral surface of cylindrical shell 821 and with cylindrical shell 821 one and is connected; The inner edge of tubular cylinder body 81 upper ends is provided with upper limit ring 83, and the inner edge of tubular cylinder body 81 lower ends is provided with circular bottom part 84, and the upper surface of circular bottom part 84 is provided with lower limit ring 85; Annular piston body 822 is located at (in the present embodiment, annular piston body 822 is located between upper limit ring 83 and the lower limit ring 85) between upper limit ring 83 and the circular bottom part 84, and annular piston body 822 contacts with the medial surface sealing of tubular cylinder body 81; Have hydraulic fluid chamber 86 (hydraulic fluid chamber 86 is surrounded jointly by the upper surface of circular bottom part 84, the lower surface of annular piston body 822, the lateral surface of cylindrical shell 821 and the medial surface of tubular cylinder body 81) between the lower surface of the upper surface of circular bottom part 84 and annular piston body 822, tubular cylinder body 81 sidewalls are provided with the hydraulic oil that is communicated with hydraulic fluid chamber 86 and import and export 87.Make the trunk-piston 82 and the contact site of tubular cylinder body 81 keep sealing by sealing ring 88,89.In the present embodiment, tubular cylinder body 81 comprises annular seating 811 and annular gland 812, and annular gland 812 is connected with annular seating 811 by securing member 810; Upper limit ring 83 is located on the annular gland 812, and circular bottom part 84 is located on the annular seating 811, and the part that cooperates with annular piston body 822 on the tubular cylinder body 81 is located on the annular seating 811, and hydraulic oil is imported and exported 87 and is located on the annular seating 811.In the present embodiment, cover half platform position adjustments hydraulic cylinder 8 is that stroke is the precise hydraulic cylinder of 1mm.
Has thread segment 9 on the lead 5, adjusting nut 10 is installed on the thread segment 9, adjusting nut 10 is positioned at trunk-piston 82 tops, is provided with thrust bearing 11 between adjusting nut 10 and the trunk-piston 82, and adjusting nut 10, thrust bearing 11, trunk-piston 82 be closely contact successively.In the present embodiment, cover half platform position adjusting mechanism also comprises briquetting 12, briquetting 12 is in the outside of adjusting nut 10 and thrust bearing 11, the lower end of briquetting 12 is connected with tubular cylinder body 81, the inboard of briquetting 12 upper ends is provided with jut 13, the outside of adjusting nut 10 lower ends is provided with convex annular along 14, and jut 13 is positioned at the top of convex annular along 14, can make the cooperation between adjusting nut 10, thrust bearing 11, the trunk-piston 82 more reliable by briquetting 12.
Also be provided with on the frame 1 and can apply upwards active force and make cover half platform 2 have the resetting-mechanism of ascendant trend cover half platform 2, resetting-mechanism comprises four air bags 15, four air bags 15 are corresponding one by one with four leads 5, air bag 15 is located at lead 5 tops, air bag 15 tops are provided with top board 16, top board 16, air bag 15, lead 5 upper ends are closely contact successively, and top board 16 is connected with cover half platform 2 by a plurality of pull bars 17.
As shown in Figure 5, hydraulic cylinder control device comprises compressed air source 18, pressure regulator valve 19, solenoid directional control valve 20, pneumohydraulic pressure-cylinder 21 and branching block 22; The gas outlet of compressed air source 18 is communicated with the air inlet of pressure regulator valve 19; Branching block 22 is provided with a total oil inlet and outlet 221 and four branch oil inlet and outlets 222, the oil cylinder 211 of pneumohydraulic pressure-cylinder 21 is communicated with total oil inlet and outlet 221, and four branch oil inlet and outlets 222 are communicated with (promptly being communicated with the hydraulic fluid chamber 86 of cover half platform position adjustments hydraulic cylinder 8 through hydraulic oil import and export 87) correspondingly with four cover half platform position adjustments hydraulic cylinders 8; The cylinder 212 of pneumohydraulic pressure-cylinder 21 and empty oily changeover bobbin 213 are connected through the gas outlet of solenoid directional control valve 20 with pressure regulator valve 19.Solenoid directional control valve 20 is used for controlling the flow direction of pneumohydraulic pressure-cylinder 21 gases, and solenoid directional control valve 20 adopts two position switching valves in the present embodiment.
Brief description is the operation principle of this thermoforming machine once:
When thermoforming machine brings into operation, switch solenoid directional control valve 20, the empty oily changeover bobbin 213 of pneumohydraulic pressure-cylinder 21 is communicated with the gas outlet of pressure regulator valve 19, the cylinder 212 of pneumohydraulic pressure-cylinder 21 then is in communication with the outside, this moment, compressed air entered in the cavity of empty oily changeover bobbin 213, promote cylinder piston 214 and oil cylinder piston 215 returns, pneumohydraulic pressure-cylinder 21 discharges high output hydraulic pressure; As depicted in figs. 1 and 2, the tension force of air bag 15 self produces the jacking active forces to top board 16, top board 16, pull bar 17 and cover half platform 2 are risen, trunk-piston 82 descends (because the upper end of trunk-piston 82 is limited by adjusting nut 10 and thrust bearing 11 with respect to tubular cylinder body 81, therefore tubular cylinder body 81 and cover half platform 2 rise), lower surface until annular piston body 822 contacts with lower limit ring 85, and trunk-piston 82 resets.This moment, die height was 400mm, in this case, when dynamic model platform 3 moves to the position of the most close cover half platform 2, closed moulding and goods not being sheared just in time.
When thermoforming machine normally moves, solenoid directional control valve 20 switches to position shown in Figure 5, the cylinder 212 of pneumohydraulic pressure-cylinder 21 is communicated with the gas outlet of pressure regulator valve 19, the empty oily changeover bobbin 213 of pneumohydraulic pressure-cylinder 21 then is in communication with the outside by choke valve 23, this moment, compressed air entered in the cavity of cylinder 212, promoting cylinder piston 214 and oil cylinder piston 215 moves, hydraulic oil in the oil cylinder 211 is released (this space-time oil changeover bobbin 212 is transformed into high output hydraulic pressure with input air pressure), the hydraulic oil that flows out in oil cylinder 211 enters in the hydraulic fluid chamber 86 of each cover half platform position adjustments hydraulic cylinder 8 through branching block 22, and cover half platform position adjustments hydraulic cylinder 8 is moved simultaneously; As shown in Figure 3 and Figure 4, hydraulic oil applies active force to the lower surface of annular piston body 822, make trunk-piston 82 with respect to tubular cylinder body 81 rising 1mm (because the upper end of trunk-piston 82 is limited by adjusting nut 10 and thrust bearing 11, so tubular cylinder body 81 and cover half platform 2 decline 1mm), upper surface until annular piston body 822 contacts with upper limit ring 83, the pressure that output design needs, and cover half platform 2 applied thrust towards dynamic model platform 3.This moment, die height was 399mm, and in this case, when dynamic model platform 3 moved towards cover half platform 2, first closed moulding continued to move to the position of the most close cover half platform 2 and goods are sheared then.When running into emergency case, when making the holding block mold closing or shearing overload, surpass the design output pressure of cover half platform position adjustments hydraulic cylinder 8, force cover half platform position adjustments hydraulic cylinder 8 backhauls (maximum backhaul 1mm).
By pressure regulator valve 19, can adjust input air pressure, and make the input air pressure held stationary.
By rotating adjusting nut 10, can change the height and position of adjusting nut 10 on lead 5; Under the effect of resetting-mechanism, adjusting nut 10, thrust bearing 11, trunk-piston 82 be closely contact successively, therefore, the height and position of trunk-piston 82 has just been determined in the lower end of adjusting nut 10, and is corresponding, the tubular cylinder body 81 of cover half platform position adjustments hydraulic cylinder 8, cover half platform 2 also are determined with the height and position of the connecting portion of this tubular cylinder body 81, like this, by rotating adjusting nut 10, the position that can calibrate cover half platform 2, make cover half platform 2 keep balance, and make die height accurate.
The foregoing description also can adopt the tubular cover half platform position adjustments hydraulic cylinder of other structures.As shown in Figure 6, this cover half platform position adjustments hydraulic cylinder 8 with the difference of Fig. 1-cover half platform position adjustments hydraulic cylinder 8 shown in Figure 4 is: the inboard fixed installation guide ring 813 of upper limit ring 83, guide ring 813 cooperates with cylindrical shell 821, makes trunk-piston 82 rise or descend with respect to tubular cylinder body 81 more reposefully.As shown in Figure 7, this cover half platform position adjustments hydraulic cylinder 8 with the difference of Fig. 1-cover half platform position adjustments hydraulic cylinder 8 shown in Figure 4 is: the inboard fixed installation guide ring 813 of upper limit ring 83, guide ring 813 cooperates with cylindrical shell 821, makes trunk-piston 82 rise or descend with respect to tubular cylinder body 81 more reposefully; The part that cooperates with annular piston body 822 on the tubular cylinder body 81 is located on the annular gland 812, and hydraulic oil is imported and exported 887 and is located on the annular gland 812; Annular seating 811 is provided with sealing ring 814 with the contact site of annular gland 812; Lower limit ring 85 is not set, but in actual design, its cylindrical shell 821 lower ends were concordant with the lower end of tubular cylinder body 81 when trunk-piston 82 was resetted, and this moment, cylindrical shell 821 lower ends contacted with the upper surface of cover half platform 2, and trunk-piston 82 no longer descends with respect to tubular cylinder body 81.
In other embodiments, frame comprises a plurality of leads of trend up and down; The dynamic model platform is provided with a plurality of first guide pin bushings or first guide through hole, and the correspondingly cooperation identical of first guide pin bushing or first guide through hole with lead quantity, and lead is in first guide pin bushing or first guide through hole; The cover half platform is located at dynamic model platform below, and the cover half platform is provided with a plurality of second guide pin bushings or second guide through hole, and the correspondingly cooperation identical of second guide pin bushing or second guide through hole with lead quantity, and lead is in second guide pin bushing or second guide through hole; Cover half platform position adjusting mechanism comprises a plurality of cover half platform position adjustments hydraulic cylinders, and cover half platform position adjustments hydraulic cylinder is located at cover half platform below, and cover half platform position adjustments hydraulic cylinder is identical with lead quantity and corresponding one by one; Cover half platform position adjustments hydraulic cylinder is tubular, cover half platform position adjustments hydraulic cylinder comprises tubular cylinder body and trunk-piston, the tubular cylinder body is located at the outside of trunk-piston, trunk-piston is enclosed within on the lead, the tubular cylinder body is connected or contacts with the cover half platform and (that is to say, the tubular cylinder body can be fixedly mounted on the cover half platform, also can contact with cover half platform lower surface); Have thread segment on the lead, adjusting nut is installed on the thread segment, adjusting nut is positioned at the trunk-piston below, is provided with thrust bearing between adjusting nut and the trunk-piston, and adjusting nut, thrust bearing, trunk-piston be closely contact successively.Usually, also be provided with on the frame and can apply downward active force and make the cover half platform have the resetting-mechanism of downward trend the cover half platform; Also resetting-mechanism can be set, but make the cover half platform have downward trend by the gravity effect.The structure of this programme is similar to above preferred embodiment, and different is that the cover half platform is located at dynamic model platform below, and cover half platform position adjustments hydraulic cylinder is located at cover half platform below, and adjusting nut is positioned at cover half platform position adjustments hydraulic cylinder below; The concrete structure of cover half platform position adjustments hydraulic cylinder can be identical with above preferred embodiment, and the handstand of cover half platform position adjustments hydraulic cylinder is placed.
In other embodiments, frame comprises a plurality of leads of trend up and down; The dynamic model platform is provided with a plurality of first guide pin bushings or first guide through hole, and the correspondingly cooperation identical of first guide pin bushing or first guide through hole with lead quantity, and lead is in first guide pin bushing or first guide through hole; The cover half platform is provided with a plurality of second guide pin bushings or second guide through hole, and the correspondingly cooperation identical of second guide pin bushing or second guide through hole with lead quantity, and lead is in second guide pin bushing or second guide through hole; Cover half platform position adjusting mechanism comprises a plurality of cover half platform position adjustments hydraulic cylinders, and cover half platform position adjustments hydraulic cylinder is identical with lead quantity and corresponding one by one; Cover half platform position adjustments hydraulic cylinder is tubular, cover half platform position adjustments hydraulic cylinder comprises tubular cylinder body and trunk-piston, the tubular cylinder body is located at the outside of trunk-piston, trunk-piston is enclosed within on the lead and with lead and is connected, the tubular cylinder body is fixedly mounted on the cover half platform (under the situation below the cover half platform is located at the dynamic model platform, also can the tubular cylinder body contacting with cover half platform lower surface).In this case, cover half platform position adjustments hydraulic cylinder can adopt single-action hydraulic cylinder or double acting hydraulic cylinder (motion of double acting hydraulic cylinder piston both direction all relies on hydraulic action to realize).When cover half platform position adjustments hydraulic cylinder adopts single-action hydraulic cylinder, the common also supporting resetting-mechanism that is provided with, this resetting-mechanism can apply active force to the cover half platform, make the cover half platform have the trend that dynamic model platform dorsad moves, like this, after cover half platform position adjustments hydraulic cylinder is cancelled the thrust of cover half platform, this resetting-mechanism can make the cover half platform dorsad the dynamic model platform move; Under the situation below the cover half platform is located at the dynamic model platform, resetting-mechanism can be set, but by gravity effect make the cover half platform have the dorsad dynamic model platform moves (promptly descend) trend.Each cover half platform position adjustments hydraulic cylinder synchronous action in the above-mentioned cover half platform position adjusting mechanism, and output pressure equates; By cover half platform position adjustments hydraulic cylinder is installed in each lead position, can make the suffered thrust of cover half platform balanced more.The concrete structure of cover half platform position adjustments hydraulic cylinder can be identical with above preferred embodiment; Under the situation below the cover half platform is located at the dynamic model platform, cover half platform position adjustments hydraulic cylinder stands upside down and places.
In other embodiments, above-mentioned cover half platform position adjustments hydraulic cylinder can adopt hydraulic cylinder commonly used in the prior art, this hydraulic cylinder comprises cylinder body, piston and piston rod, piston is arranged in the cavity of cylinder body, cover half platform position adjustments hydraulic cylinder is located between frame and the cover half platform, and cover half platform position adjustments hydraulic cylinder is for moving towards up and down.Under the situation above the cover half platform is located at the dynamic model platform, above-mentioned cover half platform position adjustments hydraulic cylinder is usually located at cover half platform top, and can be provided with by one of following 6 kinds of modes: the cylinder body of (1) cover half platform position adjustments hydraulic cylinder is connected with frame, and the piston rod of cover half platform position adjustments hydraulic cylinder is connected with the cover half platform; (2) cylinder body of cover half platform position adjustments hydraulic cylinder is connected with frame, and the piston rod of cover half platform position adjustments hydraulic cylinder contacts with the cover half platform; (3) cylinder body of cover half platform position adjustments hydraulic cylinder contacts with frame, and the piston rod of cover half platform position adjustments hydraulic cylinder is connected with the cover half platform; (4) cylinder body of cover half platform position adjustments hydraulic cylinder is connected with the cover half platform, and the piston rod of cover half platform position adjustments hydraulic cylinder is connected with frame; (5) cylinder body of cover half platform position adjustments hydraulic cylinder is connected with the cover half platform, and the piston rod of cover half platform position adjustments hydraulic cylinder contacts with frame; Perhaps the cylinder body of (6) cover half platform position adjustments hydraulic cylinder contacts with the cover half platform, and the piston rod of cover half platform position adjustments hydraulic cylinder is connected with frame.Like this, when the piston rod of cover half platform position adjustments hydraulic cylinder stretched out, cover half platform position adjustments hydraulic cylinder can apply downward thrust to the cover half platform.Adopt above-mentioned (2), (3), when (5) and (6) plant mode, usually answer the supporting resetting-mechanism (as spring) that is provided with, this resetting-mechanism can apply active force upwards to the cover half platform, make the cover half platform have the trend of rising, like this, after cover half platform position adjustments hydraulic cylinder was cancelled the thrust of cover half platform, this resetting-mechanism can make the cover half platform rise, and made cover half platform position adjustments hydraulic cylinder keep closely contacting with frame or cover half platform.
In other embodiments, above-mentioned cover half platform position adjustments hydraulic cylinder can adopt hydraulic cylinder commonly used in the prior art, this hydraulic cylinder comprises cylinder body, piston and piston rod, piston is arranged in the cavity of cylinder body, cover half platform position adjustments hydraulic cylinder is located between frame and the cover half platform, and cover half platform position adjustments hydraulic cylinder is for moving towards up and down.Under the situation below the cover half platform is located at the dynamic model platform, above-mentioned cover half platform position adjustments hydraulic cylinder is located at cover half platform below usually, and can be provided with by one of following 6 kinds of modes: the cylinder body of (1) cover half platform position adjustments hydraulic cylinder is connected with frame, and the piston rod of cover half platform position adjustments hydraulic cylinder is connected with the cover half platform; (2) cylinder body of cover half platform position adjustments hydraulic cylinder is connected with frame, and the piston rod of cover half platform position adjustments hydraulic cylinder contacts with the cover half platform; (3) cylinder body of cover half platform position adjustments hydraulic cylinder contacts with frame, and the piston rod of cover half platform position adjustments hydraulic cylinder is connected with the cover half platform; (4) cylinder body of cover half platform position adjustments hydraulic cylinder is connected with the cover half platform, and the piston rod of cover half platform position adjustments hydraulic cylinder is connected with frame; (5) cylinder body of cover half platform position adjustments hydraulic cylinder is connected with the cover half platform, and the piston rod of cover half platform position adjustments hydraulic cylinder contacts with frame; (6) cylinder body of cover half platform position adjustments hydraulic cylinder contacts with the cover half platform, and the piston rod of cover half platform position adjustments hydraulic cylinder is connected with frame.Like this, when the piston rod of cover half platform position adjustments hydraulic cylinder stretched out, cover half platform position adjustments hydraulic cylinder can apply thrust upwards to the cover half platform.Adopt above-mentioned (2), (3), when (5) and (6) plant mode, can rely on the gravity effect to make the cover half platform have downward trend, and cover half platform position adjustments hydraulic cylinder is closely contacted with frame or the maintenance of cover half platform; Also resetting-mechanism (as spring) can supportingly be set, this resetting-mechanism can apply downward active force to the cover half platform, make the cover half platform have downward trend, like this, after cover half platform position adjustments hydraulic cylinder is cancelled the thrust of cover half platform, this resetting-mechanism can make the cover half platform descend, and makes cover half platform position adjustments hydraulic cylinder keep closely contacting with frame or cover half platform.
Claims (10)
1. thermoforming machine, comprise frame, cover half platform, dynamic model platform and dynamic model platform lift drive mechanism, on cover half platform, the dynamic model platform mould is installed, dynamic model platform lift drive mechanism is cam mechanism or linkage, the dynamic model platform is connected with the clutch end of dynamic model platform lift drive mechanism, it is characterized in that: described thermoforming machine also comprises cover half platform position adjusting mechanism, and cover half platform position adjusting mechanism comprises that at least one can apply cover half platform position adjustments hydraulic cylinder towards the thrust of dynamic model platform to the cover half platform.
2. thermoforming machine according to claim 1 is characterized in that: described frame comprises a plurality of leads of trend up and down; The dynamic model platform is provided with a plurality of first guide pin bushings or first guide through hole, and the correspondingly cooperation identical of first guide pin bushing or first guide through hole with lead quantity, and lead is in first guide pin bushing or first guide through hole; The cover half platform is located at dynamic model platform top, and the cover half platform is provided with a plurality of second guide pin bushings or second guide through hole, and the correspondingly cooperation identical of second guide pin bushing or second guide through hole with lead quantity, and lead is in second guide pin bushing or second guide through hole; Cover half platform position adjusting mechanism comprises a plurality of cover half platform position adjustments hydraulic cylinders, and cover half platform position adjustments hydraulic cylinder is located at cover half platform top, and cover half platform position adjustments hydraulic cylinder is identical with lead quantity and corresponding one by one; Cover half platform position adjustments hydraulic cylinder is tubular, and cover half platform position adjustments hydraulic cylinder comprises tubular cylinder body and trunk-piston, and the tubular cylinder body is located at the outside of trunk-piston, and trunk-piston is enclosed within on the lead, and the tubular cylinder body is fixedly mounted on the cover half platform; Have thread segment on the lead, adjusting nut is installed on the thread segment, adjusting nut is positioned at the trunk-piston top, is provided with thrust bearing between adjusting nut and the trunk-piston, and adjusting nut, thrust bearing, trunk-piston be closely contact successively; Also be provided with on the frame and can apply upwards active force and make the cover half platform have the resetting-mechanism of ascendant trend the cover half platform.
3. thermoforming machine according to claim 2, it is characterized in that: described resetting-mechanism comprises a plurality of air bags, air bag is identical with lead quantity and corresponding one by one, air bag is located at the lead top, the air bag top is provided with top board, the closely contact successively of top board, air bag, lead upper end, top board is connected with the cover half platform by a plurality of pull bars.
4. thermoforming machine according to claim 2 is characterized in that: in the described cover half platform position adjustments hydraulic cylinder, trunk-piston comprises cylindrical shell and annular piston body, and the annular piston body is located on the lateral surface of cylindrical shell and with the cylindrical shell one and is connected; The inner edge of tubular cylinder body upper end is provided with the upper limit ring, and the inner edge of tubular cylinder body lower end is provided with circular bottom part; The annular piston body is located between upper limit ring and the circular bottom part, and the annular piston body contacts with the medial surface sealing of tubular cylinder body; Have hydraulic fluid chamber between the lower surface of the upper surface of circular bottom part and annular piston body, the tubular cylinder side wall is provided with the hydraulic oil that is communicated with hydraulic fluid chamber and imports and exports.
5. thermoforming machine according to claim 4 is characterized in that: the upper surface of described circular bottom part is provided with the lower limit ring.
6. thermoforming machine according to claim 4 is characterized in that: the inboard of described upper limit ring fixedly mounts a guide ring, and guide ring cooperates with described cylindrical shell.
7. thermoforming machine according to claim 2, it is characterized in that: described cover half platform position adjusting mechanism also comprises briquetting, briquetting is in the outside of adjusting nut and thrust bearing, the lower end of briquetting is connected with the tubular cylinder body, the inboard of briquetting upper end is provided with jut, the outside of adjusting nut lower end is provided with the convex annular edge, and the protruding part is in the top on convex annular edge.
8. thermoforming machine according to claim 1 is characterized in that: described frame comprises a plurality of leads of trend up and down; The dynamic model platform is provided with a plurality of first guide pin bushings or first guide through hole, and the correspondingly cooperation identical of first guide pin bushing or first guide through hole with lead quantity, and lead is in first guide pin bushing or first guide through hole; The cover half platform is located at dynamic model platform below, and the cover half platform is provided with a plurality of second guide pin bushings or second guide through hole, and the correspondingly cooperation identical of second guide pin bushing or second guide through hole with lead quantity, and lead is in second guide pin bushing or second guide through hole; Cover half platform position adjusting mechanism comprises a plurality of cover half platform position adjustments hydraulic cylinders, and cover half platform position adjustments hydraulic cylinder is located at cover half platform below, and cover half platform position adjustments hydraulic cylinder is identical with lead quantity and corresponding one by one; Cover half platform position adjustments hydraulic cylinder is tubular, and cover half platform position adjustments hydraulic cylinder comprises tubular cylinder body and trunk-piston, and the tubular cylinder body is located at the outside of trunk-piston, and trunk-piston is enclosed within on the lead, and the tubular cylinder body is connected with the cover half platform or contacts; Have thread segment on the lead, adjusting nut is installed on the thread segment, adjusting nut is positioned at the trunk-piston below, is provided with thrust bearing between adjusting nut and the trunk-piston, and adjusting nut, thrust bearing, trunk-piston be closely contact successively.
9. thermoforming machine according to claim 1 is characterized in that: described frame comprises a plurality of leads of trend up and down; The dynamic model platform is provided with a plurality of first guide pin bushings or first guide through hole, and the correspondingly cooperation identical of first guide pin bushing or first guide through hole with lead quantity, and lead is in first guide pin bushing or first guide through hole; The cover half platform is provided with a plurality of second guide pin bushings or second guide through hole, and the correspondingly cooperation identical of second guide pin bushing or second guide through hole with lead quantity, and lead is in second guide pin bushing or second guide through hole; Cover half platform position adjusting mechanism comprises a plurality of cover half platform position adjustments hydraulic cylinders, and cover half platform position adjustments hydraulic cylinder is identical with lead quantity and corresponding one by one; Cover half platform position adjustments hydraulic cylinder is tubular, cover half platform position adjustments hydraulic cylinder comprises tubular cylinder body and trunk-piston, the tubular cylinder body is located at the outside of trunk-piston, and trunk-piston is enclosed within on the lead and with lead and is connected, and the tubular cylinder body is fixedly mounted on the cover half platform.
10. according to each described thermoforming machine of claim 1-9, it is characterized in that: described cover half platform position adjusting mechanism also comprises the hydraulic cylinder control device that the state that is used to control each cover half platform position adjustments hydraulic cylinder switches, and hydraulic cylinder control device comprises compressed air source, pressure regulator valve, solenoid directional control valve, pneumohydraulic pressure-cylinder and branching block; The gas outlet of compressed air source is communicated with the air inlet of pressure regulator valve; Branching block is provided with a total oil inlet and outlet and a plurality of minutes oil inlet and outlets, and the oil cylinder of pneumohydraulic pressure-cylinder is communicated with total oil inlet and outlet, and the branch oil inlet and outlet is identical with cover half platform position adjustments hydraulic cylinder quantity and be communicated with cover half platform position adjustments hydraulic cylinder correspondingly; The cylinder of pneumohydraulic pressure-cylinder and empty oily changeover bobbin are connected with the gas outlet of pressure regulator valve through solenoid directional control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120175615 CN202088451U (en) | 2011-05-27 | 2011-05-27 | Thermoforming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120175615 CN202088451U (en) | 2011-05-27 | 2011-05-27 | Thermoforming machine |
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| Publication Number | Publication Date |
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| CN202088451U true CN202088451U (en) | 2011-12-28 |
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| CN 201120175615 Expired - Lifetime CN202088451U (en) | 2011-05-27 | 2011-05-27 | Thermoforming machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336014A (en) * | 2011-05-27 | 2012-02-01 | 广东达诚机械有限公司 | Thermal forming machine |
-
2011
- 2011-05-27 CN CN 201120175615 patent/CN202088451U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336014A (en) * | 2011-05-27 | 2012-02-01 | 广东达诚机械有限公司 | Thermal forming machine |
| CN102336014B (en) * | 2011-05-27 | 2013-10-23 | 广东达诚机械有限公司 | Thermal forming machine |
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Address after: Lu Shengping Industrial Zone Jinping District 515041 Guangdong city of Shantou province No. 28 Patentee after: Guangdong Dacheng Technology Co., LTD Address before: Lu Shengping Industrial Zone Jinping District 515041 Guangdong city of Shantou province No. 28 Patentee before: Guangdong Designer Machinery Co., Ltd. |
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