CN201231552Y - Transmission mechanism of plastic sheet forming machine mould - Google Patents
Transmission mechanism of plastic sheet forming machine mould Download PDFInfo
- Publication number
- CN201231552Y CN201231552Y CNU200820048369XU CN200820048369U CN201231552Y CN 201231552 Y CN201231552 Y CN 201231552Y CN U200820048369X U CNU200820048369X U CN U200820048369XU CN 200820048369 U CN200820048369 U CN 200820048369U CN 201231552 Y CN201231552 Y CN 201231552Y
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- Prior art keywords
- conjugate cam
- mould bases
- mould
- die
- stroke
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a transmission mechanism for a die of a plastic sheet molding machine. A die locking mechanism comprises a coaxial conjugate cam which is connected with a linkage, and the linkage is connected with a sliding die carrier to push the die to open or close. An overturn mechanism comprises a coaxial conjugate cam which is connected with a link mechanism, and the link mechanism is connected with the die carrier to enable the die carrier to turn over. The coaxial conjugate cam of the die locking mechanism and the coaxial conjugate cam of the overturn mechanism are fixed on the same camshaft. Through the cooperation of the curves of the coaxial conjugate cams, the die can turn over during die locking and die opening processes, thus shorting die locking and die opening time and improving work efficiency. The die locking mechanism and the overturn mechanism are driven by the same power source. The transmission mechanism is simple in mechanical structure and low in fault rate, and is particularly suitable for a die with a plurality of die cavities for molding a plurality of products at the same time.
Description
Technical field
The utility model relates to a kind of machinery that uses plastic sheet to be processed into goods, specifically is the transmission mechanism of mould in the hot-forming machine for plastic sheet.
Background technology
Plastic sheet is processed into packing materials such as container, need first preheating on thermoforming machine, in die for molding.Existing this make-up machine is that mold is fixed on the support, and bed die is driven to pump by linkage as mould finishes die sinking and matched moulds.Action cycle is: bed die begins to move upward from minimum point, and the arrival matched moulds pauses behind the position, and pause is the product molding time, after moulding was finished, bed die continued to move upward, and moulded products is cut edge, be goods and sheet separation, goods are then stayed in the bed die.After the side cut, bed die moves downward die sinking, and the goods top is compressed the goods collection container that air blows to the machine outside behind mould.Because goods will be deposited in the goods collection container mussily by air blowing mould release, goods neatly stack when collecting by profile can only lean on artificial realization usually.
Summary of the invention
The purpose of this utility model is to provide a kind of demoulding of being convenient to, the mould transmission mechanism that goods can neatly stack under high workload efficient.
For achieving the above object; the utility model comprises clamping and switching mechanism; clamping comprises at least one pair of coaxial conjugate cam; this conjugate cam connects connection rod set; the mould bases that this connection rod set connection can be slided is to promote mould open/close, and switching mechanism comprises at least one pair of coaxial conjugate cam, and this conjugate cam connects linkage; this linkage connects mould bases makes the mould bases upset, and the conjugate cam of clamping and the conjugate cam of switching mechanism are fixed on the same camshaft.
The connection rod set of above-mentioned clamping comprises a parallel four-bar group; the conjugate cam of clamping contacts with the roller of two rocking bars of this parallel four-bar group respectively, and this parallel four-bar group connects connecting rod, this rod hinge connection rotating shaft; this rotating shaft connects push rod, the hinged mould bases of this push rod.
Above-mentioned mould bases has the trip shaft of hinged slide block, and slide block slides on traveller.
The linkage of switching mechanism comprises a parallel four-bar group, and the conjugate cam of switching mechanism contacts with the roller of two rocking bars of this parallel four-bar group respectively, and this parallel four-bar group connects upset pull bar, and this upset pull bar connects mould bases.
The cam curve of the conjugate cam of above-mentioned switching mechanism and clamping cooperatively interacts; each conjugate cam rotates a circle and works in coordination with the upset rising of finishing mould bases; matched moulds; static; rise again; the decline die sinking; upset; the static work period; rise in the mould bases upset; the conjugate cam corner is 40～80 ° in the mould-closing stroke; mould bases is static to carry out that the conjugate cam corner is 100～150 ° in the product molding processing stroke; mould bases rises and finishes that the conjugate cam corner is 10～20 ° in the goods side cut stroke; mould bases decline die sinking; the conjugate cam corner is 40～80 ° in the upset stroke, and the conjugate cam corner of the static goods stripping stroke of mould bases is 70～100 °.Preferably: the conjugate cam corner is 45～70 ° in mould bases upset rising, mould-closing stroke, mould bases is static to carry out that the conjugate cam corner is 120～140 ° in the product molding processing stroke, mould bases rises and finishes that the conjugate cam corner is 14～18 ° in the goods side cut stroke, the conjugate cam corner is 45～70 ° in the mould bases decline die sinking upset stroke, and the conjugate cam corner is 80～90 ° in the static goods stripping stroke of mould bases.
For ease of the goods demoulding, in the static goods stripping stroke of mould bases, preferably 75～85 ° of mould bases flip angles.
The utility model cooperatively interacts by each conjugate cam, and at the die sinking running mould that overturns simultaneously, processed goods can neatly stack collection by the goods machine that stacks in the appropriate tilt angle.At the matched moulds die sinking running mould that overturns simultaneously, shorten the die sinking matched moulds time, improved operating efficiency.Clamping and switching mechanism are driven by a common power source, and mechanical realization is simple, and fault rate is low.Be particularly useful for the forming mould use simultaneously of a plurality of goods of multimode cavity.
Description of drawings
Fig. 1 is the utility model schematic diagram.
Fig. 2 is that mould bases is in original state clamping schematic diagram down.
Fig. 3 is that mould bases is in original state switching mechanism schematic diagram down.
Fig. 4 is that mould bases is in goods side cut state clamping schematic diagram down.
Fig. 5 is that mould bases is in goods side cut state turnover structural scheme of mechanism down.
The specific embodiment
As shown in the figure, mold is installed in the top mold frame 1, and bed die is installed in down on the mould bases 2.Following mould bases 2 has trip shaft 3, and two ends of this trip shaft 3 are enclosed within respectively on the axis hole of slide block 4,5, and slide block 4,5 slides on traveller 6,7 respectively.
The conjugate cam group of switching mechanism comprises two cams 8,9 of conjugation each other, roller 10,11 on two rocking bars of the parallel four-bar group that this conjugate cam 8,9 is corresponding with it respectively remains contact, and two ends of upset pull bar 12 are the rocking bar and the following mould bases 2 of hinged parallel four-bar group respectively.The rotation of conjugate cam 8,9 drives the rocking bar swing of parallel four-bar group, thereby drives the push pull maneuver of upset pull bar 12, makes down mould bases 2 around trip shaft 3 swings, the upset of realization mould and resetting.
The conjugate cam of clamping comprises two cams 13 of conjugation each other; 14; this conjugate cam 13; roller 15 on two rocking bars of 14 corresponding with it respectively parallel four-bar groups; 16 remain contact; the rocking bar of two hinged respectively parallel four-bar groups in end of connecting rod 17 and be positioned at traveller 6; the rotating shaft 18 of 7 belows; the extension 20 and the following mould bases 2 of push rod 19 hinged rotating shafts 18; conjugate cam 13; the push-and-pull campaign of 14 rotation drivening rod 17; drive the deflection swing of rotating shaft 18 again; swinging the push pull maneuver that drives push rod 19 by the deflection of rotating shaft 18 makes down mould bases 2 along traveller 6; 7 move up and down, and realize die sinking and matched moulds.
The conjugate cam of clamping and the conjugate cam of switching mechanism are fixedly mounted on the same camshaft 21, and the conjugate cam of switching mechanism and the conjugate cam of clamping are rotated synchronously, and the opening and closing movement of assurance mould and rotary movement are accurately coordinated to carry out.Camshaft 21 is driven through reductor by motor.Camshaft 21 revolutions move a week, and the conjugate cam of switching mechanism and the conjugate cam of clamping rotate a circle synchronously, finish a production of articles cycle.Bottom at following mould bases can be equipped with cylinder, when die flip arrives demoulding position, moulded products is ejected mould.
The cam curve of the conjugate cam of switching mechanism and clamping cooperatively interacts, each conjugate cam rotate a circle the upset rising matched moulds of finishing mould bases, static, rise again, decline die sinking upset, static work period.It is that conjugate cam rotates a circle work period of mould that following table lists that camshaft 21 rotates a circle:
θ in the table
1+ θ
2+ θ
3+ θ
4+ θ
5+ θ
6+ θ
7=360 °.Angle θ
1, θ
2θ
7Distribution and the contour curve of each the cam lift backhaul runnability that determined time mould bases.The corner preferred version of camshaft 21 each active section is: θ
1+ θ
2Preferred 40～80 ° (θ wherein
1Be 20～60 °), be more preferably 45～70 ° of (θ wherein
1It is 30～60 °); θ
3Preferred 100～150 °, be more preferably 120～140 °; θ
4Preferred 10～20 °, be more preferably 14～18 °; θ
5+ θ
6Preferred 40～80 ° (θ wherein
6Be 20～60 °), be more preferably 45～70 ° of (θ wherein
6It is 30～60 °); θ
7Preferred 70～100 °, be more preferably 80～90 °.
For example the utility model is used for the transmission mechanism as disposable plastic goblet manufacturing machine, raw material is a plastic sheet, 70 millimeters of goblet diameters, 100 millimeters of height, dies cavity divides three rows, 7 of every rows are totally 21 die cavitys, and a process-cycle can be made 21 plastic cups, and the conjugate cam corner is chosen as θ
1=30 °, θ
2=30 °, θ
3=135 °, θ
4=15 °, θ
5=30 °, θ
6=30 °, θ
7=90 °, in the following mould bases 2 static goods stripping stroke, following mould bases 2 is from 80 ° of upright position flip angles.This selection has solved following problem:
1. the neat demoulding of goods is convenient to external device for pilling goods is neatly stacked, after moulding operation and side cut operation were finished, following mould bases 2 was turned to obliquity, at pause, be fixed on down the cylinder action of mould bases 2 bottoms, the goods straight line of staying in the mould is ejected in the external device for pilling.Each work period ejects goods once, ejects at every turn, and goods all enter device for pilling with same direction, has solved goods and has neatly stacked problem.
2. the curve cooperation of the conjugate cam of clamping, switching mechanism obtains stable working preferably, and machine works is steady, noise is little thereby make, and also can work under higher productivity.
Claims (7)
1. the transmission mechanism of plastic sheet die forming machine; comprise clamping and switching mechanism; it is characterized in that; described clamping comprises at least one pair of coaxial conjugate cam; this conjugate cam connects connection rod set; the mould bases that this connection rod set connection can be slided is to promote mould open/close; switching mechanism comprises at least one pair of coaxial conjugate cam; this conjugate cam connects linkage; this linkage connects mould bases makes the mould bases upset, and the conjugate cam of clamping and the conjugate cam of switching mechanism are fixed on the same camshaft.
2. according to the transmission mechanism of the described mould of claim 1; it is characterized in that; the connection rod set of described clamping comprises a parallel four-bar group; the conjugate cam of clamping contacts with the roller of two rocking bars of this parallel four-bar group respectively; this parallel four-bar group connects connecting rod; this rod hinge connection rotating shaft, this rotating shaft connects push rod, the hinged mould bases of this push rod.
3. according to the transmission mechanism of the described mould of claim 2, it is characterized in that described mould bases has the trip shaft of hinged slide block, slide block slides on traveller.
4. according to the transmission mechanism of the described mould of claim 3, it is characterized in that, the linkage of described switching mechanism comprises a parallel four-bar group, the conjugate cam of switching mechanism contacts with the roller of two rocking bars of this parallel four-bar group respectively, this parallel four-bar group connects the upset pull bar, and this upset pull bar connects mould bases.
5. according to the transmission mechanism of the arbitrary described mould of claim 1～4; it is characterized in that; the cam curve of the conjugate cam of described switching mechanism and clamping cooperatively interacts; each conjugate cam rotates a circle and works in coordination with the upset rising of finishing mould bases; matched moulds; static; rise again; the decline die sinking; upset; the static work period; rise in the mould bases upset; the conjugate cam corner is 40～80 ° in the mould-closing stroke; mould bases is static to carry out that the conjugate cam corner is 100～150 ° in the product molding processing stroke; mould bases rises and finishes that the conjugate cam corner is 10～20 ° in the goods side cut stroke; mould bases decline die sinking; the conjugate cam corner is 40～80 ° in the upset stroke, and the conjugate cam corner is 70～100 ° in the static goods stripping stroke of mould bases.
6. according to the transmission mechanism of the described mould of claim 5, it is characterized in that, the conjugate cam corner is 45～70 ° in mould bases upset rising, mould-closing stroke, mould bases is static to carry out that the conjugate cam corner is 120～140 ° in the product molding processing stroke, mould bases rises and finishes that the conjugate cam corner is 14～18 ° in the goods side cut stroke, the conjugate cam corner is 45～70 ° in the mould bases decline die sinking upset stroke, and the conjugate cam corner is 80～90 ° in the static goods stripping stroke of mould bases.
7. according to the transmission mechanism of the described mould of claim 5, it is characterized in that the mould bases flip angle is 75～85 ° in the static goods stripping stroke of mould bases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820048369XU CN201231552Y (en) | 2008-05-22 | 2008-05-22 | Transmission mechanism of plastic sheet forming machine mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820048369XU CN201231552Y (en) | 2008-05-22 | 2008-05-22 | Transmission mechanism of plastic sheet forming machine mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201231552Y true CN201231552Y (en) | 2009-05-06 |
Family
ID=40617928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820048369XU Expired - Fee Related CN201231552Y (en) | 2008-05-22 | 2008-05-22 | Transmission mechanism of plastic sheet forming machine mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201231552Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211404A (en) * | 2011-05-19 | 2011-10-12 | 汕头大学 | Die opening/closing mechanism of thermoforming machine |
| CN103969102A (en) * | 2014-05-29 | 2014-08-06 | 哈尔滨理工大学 | Plastic-disk sample preparation device and sample preparation method |
| CN107718922A (en) * | 2017-08-18 | 2018-02-23 | 王小强 | A kind of bookblock glue orders the upset system of linkage production line |
| CN108773002A (en) * | 2018-05-22 | 2018-11-09 | 肇庆益晟商贸有限公司 | A kind of high molecular material compression moulding demoulding all-in-one machine |
| CN111605113A (en) * | 2020-06-01 | 2020-09-01 | 郭冰冰 | Full-automatic sole processingequipment |
-
2008
- 2008-05-22 CN CNU200820048369XU patent/CN201231552Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211404A (en) * | 2011-05-19 | 2011-10-12 | 汕头大学 | Die opening/closing mechanism of thermoforming machine |
| CN103969102A (en) * | 2014-05-29 | 2014-08-06 | 哈尔滨理工大学 | Plastic-disk sample preparation device and sample preparation method |
| CN103969102B (en) * | 2014-05-29 | 2017-11-14 | 哈尔滨哈普电气技术有限责任公司 | Plastic disks formula sample preparation device and method for making sample |
| CN107718922A (en) * | 2017-08-18 | 2018-02-23 | 王小强 | A kind of bookblock glue orders the upset system of linkage production line |
| CN108773002A (en) * | 2018-05-22 | 2018-11-09 | 肇庆益晟商贸有限公司 | A kind of high molecular material compression moulding demoulding all-in-one machine |
| CN111605113A (en) * | 2020-06-01 | 2020-09-01 | 郭冰冰 | Full-automatic sole processingequipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20110522 |