CN102632604B - Thermoforming machine - Google Patents
Thermoforming machine Download PDFInfo
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- CN102632604B CN102632604B CN201210112756.6A CN201210112756A CN102632604B CN 102632604 B CN102632604 B CN 102632604B CN 201210112756 A CN201210112756 A CN 201210112756A CN 102632604 B CN102632604 B CN 102632604B
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- 238000003856 thermoforming Methods 0.000 title claims abstract description 56
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 230000003028 elevating effect Effects 0.000 claims description 18
- 229920003023 plastic Polymers 0.000 abstract description 26
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000007423 decrease Effects 0.000 description 12
- 238000009966 trimming Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000007664 blowing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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Abstract
The invention relates to a thermoforming machine which comprises a stand, a stand column, a guide sleeve, an upper die base, an upper mould, a lower mould, a lifting driving device, an overturning driving device and a programmable logic controller (PLC) control unit, wherein the stand column is vertically arranged on the stand; the upper die base is fixedly arranged at the upper end of the stand column; the upper mould is arranged on the upper die base; the guide sleeve can be arranged on the stand column in a way of sliding up and down, and is arranged under the upper die base; the lower mould is rotatablely arranged on the guide sleeve by a rotating shaft; the lower mould is provided with at least one working surface; the working surface of the lower mould is matched with the upper mould in a way of die assembly or die sinking; the lifting driving device is arranged on the stand, and is connected with the rotating shaft of the lower mould in a transmission way; the overturning driving device is arranged on the guide sleeve, and is connected with a rotating shaft of the lower mould in a transmission way; and a signal output end of the PLC control unit is respectively and electrically connected with the lifting driving device and the overturning driving device. The thermoforming machine leads plastic products to automatically demould when the lower mould descends, so that the structure is simple, and the production efficiency is high.
Description
Technical field
The present invention relates to a kind of for making the thermoforming machine of various plastic products.
Background technology
Thermoforming machine is the common equipment of making various plastic products, and for example, the plastic packaging containers such as plastic cup, vinyl disc, plastic casing, are normally made by thermoforming machine.
The frame of existing thermoforming machine is generally provided with four root posts, and the upper end of column is installed with upper bolster, and upper bolster is provided with mold; The bed die of existing thermoforming machine generally can slide up and down to be arranged on column by guide pin bushing, and bed die coordinates with mold matched moulds or die sinking by the driving of lifting drive.
When lifting drive drive bed die rise and with mold matched moulds after, blank sheet is made and is become plastic products after the operation such as thermoforming, trimming; Then, lifting drive drives bed die decline and separate with mold; Then, then by air blowing release unit, plastic products are blown out from bed die, so that the carrying out of the operations such as matched moulds, thermoforming, trimming next time.
Because existing thermoforming machine need to blow out plastic products by air blowing release unit from bed die, so existing thermoforming machine exists the shortcomings such as complex structure, production efficiency be low.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of without adopting air blowing release unit just can make the thermoforming machine of plastic products automatic trip from bed die, thereby the structure of this thermoforming machine is become simply, has also improved the production efficiency of this thermoforming machine.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of thermoforming machine, is characterized in that: comprise frame, column, guide pin bushing, upper bolster, mold, bed die, lifting drive, overturning drive device and PLC control module, above-mentioned column is located in frame vertically; Upper bolster is fixedly mounted on the upper end of column, and mold is located on upper bolster; Above-mentioned guide pin bushing can slide up and down to be arranged on column, and guide pin bushing is positioned at the below of upper bolster; Bed die is located on guide pin bushing rotationally by rotating shaft, and bed die is provided with at least one working face, and the working face of bed die coordinates with mold matched moulds or die sinking; Above-mentioned lifting drive is located in frame, and lifting drive is connected with the rotating shaft transmission of bed die; Above-mentioned overturning drive device is located on guide pin bushing, and overturning drive device is connected with the rotating shaft transmission of mold; The signal output part of above-mentioned PLC control module is electrically connected with lifting drive, overturning drive device respectively.
In the time that lifting drive drives bed die to rise by rotating shaft, bed die by guide pin bushing along column upward sliding, until the mold matched moulds on working face and the upper bolster of bed die, because the working face of bed die is provided with the parts such as forming cavity, so, after bed die and mold matched moulds, this thermoforming machine just can carry out the operation such as thermoforming, trimming of blank sheet;
After blank sheet completes the operation such as thermoforming, trimming, lifting drive by rotating shaft drive bed die decline, bed die by guide pin bushing along column down sliding, thereby the working face of bed die and the mold on upper bolster are separated;
In the process declining at bed die, overturning drive device drives bed die forward or anti-three-sixth turn by rotating shaft, thereby make plastic products automatic trip on bed die from bed die, so that the carrying out of the operations such as matched moulds, thermoforming, trimming next time, like this, this thermoforming machine is without adopting air blowing release unit just can make plastic products automatic trip from bed die, therefore, and this thermoforming machine simple in structure;
And, this thermoforming machine is that the process declining at bed die is carried out plastic products demoulding, that is to say, the demoulding of plastic products and the decline of bed die are synchronously to carry out under the control of PLC control module, thereby having saved plastic products demoulding operation in prior art carries out the needed time separately, therefore, the production efficiency of this thermoforming machine is high.
As a kind of preferred structure of the present invention, described bed die is provided with two working faces, and above-mentioned two working faces are symmetrical arranged with respect to the rotating shaft of bed die.
Because bed die is provided with two working faces, above-mentioned two working faces are symmetrical arranged with respect to the rotating shaft of bed die, so, the bed die of this thermoforming machine only needs forward or reverse 180 to spend, just can make plastic products automatic trip from bed die, decline and synchronously carry out the needed time thereby further shortened plastic products demoulding and bed die, further improved production efficiency;
And, after bed die forward or reverse 180 degree, a working face of bed die is corresponding with mold, and another working face of bed die is in making plastic products depart from the state of lower film tool, so, on bed die, the time of plastic products demoulding also can comprise that bed die rises and the time required with mold matched moulds, like this, decline at bed die, bed die forward or reverse 180 is spent, bed die rise and with the process of mold matched moulds in, this thermoforming machine all can carry out plastic products demoulding, therefore, the bed die decrease speed of this thermoforming machine, forward or reverse speed, the bed die rate of climb, and the closure pressing speed of bed die and mold can design very highly, so just, can make the overall work speed of this thermoforming machine obtain improving widely, thereby further improve the production efficiency of this thermoforming machine.
In the time that bed die is provided with two working faces, two working faces and is symmetrical arranged with respect to the rotating shaft of bed die, the bed die of this thermoforming machine also can be spent by forward or reverse 360, thereby realizes the demoulding of plastic products.
As another kind of preferred structure of the present invention, described bed die is provided with four working faces, and above-mentioned four working faces are symmetrical arranged with respect to the rotating shaft of bed die.
In the time that bed die is provided with four working faces, four working faces and is symmetrical arranged with respect to the rotating shaft of bed die, the bed die of this thermoforming machine is positive and negative to be turn 90 degrees, 180 degree or 360 degree, also can realize the demoulding of plastic products.
As a kind of preferred structure of overturning drive device in the present invention, described overturning drive device adopts servomotor, and the fuselage of above-mentioned servomotor is fixedly mounted on guide pin bushing, and above-mentioned servomotor is connected with the rotating shaft transmission of bed die; Above-mentioned servomotor is electrically connected with the signal input part of PLC control module.
Under the control of PLC control module, servomotor drives the positive and negative turnback of bed die or 360 degree by rotating shaft.
As the another kind of preferred structure of overturning drive device in the present invention, described overturning drive device adopts rotary cylinder, and the cylinder machine of above-mentioned rotary cylinder is fixedly mounted on guide pin bushing, and above-mentioned rotary cylinder is connected with the rotating shaft transmission of bed die; Above-mentioned rotary cylinder is electrically connected with the signal input part of PLC control module.
Under the control of PLC control module, rotary cylinder drives the positive and negative turnback of bed die or 360 degree by rotating shaft.
As the preferred structure of lifting drive in the present invention, described lifting drive comprises lifting drive mechanism and elevating drive mechanism, above-mentioned lifting drive mechanism and elevating drive mechanism are located at respectively in frame, and above-mentioned lifting drive mechanism is connected with the rotating shaft transmission of bed die by elevating drive mechanism; Above-mentioned lifting drive mechanism is electrically connected with the signal input part of PLC control module.
Under the control of PLC control module, lifting drive mechanism is driven bed die to rise or is declined by elevating drive mechanism and rotating shaft, and like this, bed die just slides along column up or down by guide pin bushing.
As a kind of preferred structure of lifting drive mechanism in the present invention, described lifting drive mechanism adopts hydraulic jack, and the cylinder body of above-mentioned hydraulic jack is located in frame, and piston rod and the elevating drive mechanism of above-mentioned hydraulic jack are in transmission connection; Above-mentioned hydraulic jack is electrically connected with the signal input part of PLC control module.
As the another kind of preferred structure of lifting drive mechanism in the present invention, described lifting drive mechanism comprises cam motor and cam mechanism, above-mentioned cam mechanism comprises cam and driven member, above-mentioned cam motor and cam are arranged on respectively in frame, above-mentioned cam motor is connected with cam drive, and above-mentioned cam motor is electrically connected with the signal input part of PLC control module; One end of above-mentioned driven member is connected with cam drive, and the other end and the elevating drive mechanism of above-mentioned driven member are in transmission connection.
As the preferred structure of elevating drive mechanism in the present invention, described elevating drive mechanism comprises the first side link, the second side link, middle brace rod and drive rod; The lower end of the lower end of above-mentioned the first side link and the second side link is hinged with frame respectively, the upper end of the upper end of above-mentioned the first side link and the second side link is hinged with the two ends of middle brace rod respectively, and above-mentioned the first side link, the second side link, middle brace rod and frame form a quadric chain; The upper end of above-mentioned the first side link is connected with lifting drive mechanism driving; The upper end of the lower end of above-mentioned drive rod and the second side link is in transmission connection, and the upper end of above-mentioned drive rod is connected with the rotating shaft transmission of bed die.
In the time that elevating drive mechanism drives the upper end of the first side link; the first side link just can rotate around the hinged end of itself and frame; simultaneously; the upper end of the first side link drives the upper end of the second side link by middle brace rod; the second side link is rotated around the hinged end of itself and frame; meanwhile; the upper end of the second side link drives the rotating shaft of bed die to rise or decline by drive rod; like this; bed die just slides along column up or down by guide pin bushing, thereby makes mold matched moulds or die sinking on working face and the upper bolster of bed die.
Above-mentioned PLC control module is prior art, is just no longer further introduced at this.
The present invention's beneficial effect is against existing technologies:
Because the guide pin bushing of this thermoforming machine can slide up and down to be arranged on column, the bed die of this thermoforming machine is located on guide pin bushing rotationally by rotating shaft, bed die is provided with at least one working face, the working face of bed die coordinates with mold matched moulds or die sinking, and the rotating shaft of bed die is in transmission connection with lifting drive and overturning drive device respectively; So by falling the driving of drive unit, the bed die of this thermoforming machine can slide up and down and realize along column and rise or decline, thereby makes mold matched moulds or the die sinking on working face and the upper bolster of bed die; Simultaneously, by the driving of overturning drive device, the bed die of this thermoforming machine can be spent by forward or reverse 360, and, the process that this thermoforming machine can decline at bed die is spent bed die forward or reverse 360, thereby make plastic products automatic trip from bed die, having saved plastic products demoulding operation in prior art carries out the needed time separately, like this, this thermoforming machine is without adopting air blowing release unit just can make plastic products automatic demoulding in the process of bed die decline, therefore, this thermoforming machine simple in structure, production efficiency is high.
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Brief description of the drawings
Fig. 1 is the front view of the preferred embodiment of the present invention 1 in the time of bed die and mold die sinking;
Fig. 2 is the lateral plan of the preferred embodiment of the present invention 1 in the time of bed die and mold die sinking;
Fig. 3 is the front view of the preferred embodiment of the present invention 1 in the time of bed die and mold matched moulds;
Fig. 4 is the lateral plan of the preferred embodiment of the present invention 1 in the time of bed die and mold matched moulds;
Fig. 5 is lateral plan when bed die and mold die sinking in the preferred embodiment of the present invention 2.
Detailed description of the invention
Embodiment 1
As shown in Figures 1 to 4, the thermoforming machine in this preferred embodiment, comprises frame 1, column 2, guide pin bushing 3, upper bolster 4, mold 5, bed die 6, lifting drive, overturning drive device and PLC control module 7;
Above-mentioned column 2 has four, and above-mentioned column 2 is located in frame 1 vertically;
Above-mentioned guide pin bushing 3 can slide up and down to be arranged on column 2, and guide pin bushing 3 is positioned at the below of upper bolster 4;
Above-mentioned bed die 6 is cuboid, above-mentioned bed die 6 is located on guide pin bushing 3 rotationally by rotating shaft 60, bed die 6 is provided with two working faces 61,62, above-mentioned two working faces 61,62 are symmetrical arranged with respect to the rotating shaft 60 of bed die 6, the working face 61 of bed die 6 is provided with forming cavity 63 parts such as grade, the working face 62 of bed die 6 is provided with forming cavity 64 parts such as grade, and the working face 61 or 62 of bed die 6 can coordinate with mold 5 matched moulds or die sinking on upper bolster 4;
Above-mentioned lifting drive comprises lifting drive mechanism and elevating drive mechanism, and above-mentioned lifting drive mechanism adopts hydraulic jack 80, and above-mentioned elevating drive mechanism comprises the first side link 81, the second side link 82, middle brace rod 83 and drive rod 8; The cylinder body of above-mentioned hydraulic jack 80 is located in frame 1, and above-mentioned hydraulic jack 80 is electrically connected with the signal input part of PLC control module 7; The lower end D of the lower end A of above-mentioned the first side link 81 and the second side link 82 is hinged with frame 1 respectively, the upper end C of the upper end B of above-mentioned the first side link 81 and the second side link 82 is hinged with the two ends of middle brace rod 83 respectively, and above-mentioned the first side link 81, the second side link 82, middle brace rod 83 and frame 1 form a quadric chain; The piston rod of the upper end of above-mentioned the first side link 81 and hydraulic jack 80 is in transmission connection; The upper end of the lower end of above-mentioned drive rod 8 and the second side link 82 is in transmission connection, and the rotating shaft 60 of the upper end of above-mentioned drive rod 8 and bed die 6 is in transmission connection; Like this, lifting drive is just located in frame 1, and lifting drive is just realized and being in transmission connection with the rotating shaft 60 of bed die 6, and lifting drive is also realized and being electrically connected with the signal output part of PLC control module 7;
Above-mentioned overturning drive device adopts servomotor 9, and the fuselage of servomotor 9 is fixedly mounted on guide pin bushing 3, and servomotor 9 is in transmission connection with the rotating shaft 60 of bed die 6; Above-mentioned servomotor 9 is electrically connected with the signal input part of PLC control module 7.
In the time that the piston rod of hydraulic jack 80 drives the upper end B of the first side link 81, the first side link 81 just can rotate around the hinged end A of itself and frame 1, simultaneously, the upper end B of the first side link 81 drives the upper end C of the second side link 82 by middle brace rod 83, the second side link 82 is rotated around the hinged end D of itself and frame 1, meanwhile, the upper end C of the second side link 82 drives the rotating shaft 60 of bed die 6 to rise or decline by drive rod 8, like this, bed die 6 just slides along column 2 up or down by guide pin bushing 3, thereby mold matched moulds or die sinking on the working face 61 that makes bed die 6 and upper bolster 5,
In the time that lifting drive drives bed die 6 to rise by rotating shaft 60, bed die 6 passes through guide pin bushing 3 along column 2 upward slidings, until mold 5 matched moulds on working face 61 and the upper bolster 4 of bed die 6, because the working face 61 of bed die 6 is provided with forming cavity 63 parts such as grade, so, after bed die 6 and two molds 5 matched moulds, this thermoforming machine just can carry out the operation such as thermoforming, trimming of blank sheet;
After blank sheet completes the operation such as thermoforming, trimming, lifting drive drives bed die 6 to decline by rotating shaft 60, and bed die 6 passes through guide pin bushing 3 along column 2 down slidings, thereby the working face 61 of bed die 6 and the mold 5 on upper bolster 4 are separated;
In the process declining at bed die 6, overturning drive device is that servomotor 9 drives bed die 6 forward or reverse 180 to spend by rotating shaft 60, thereby make bed die 6 working face 62 can with upper bolster 4 on mold 5 matched moulds, simultaneously, also make plastic products on bed die 6 can automatic trip from bed die 6, so that the carrying out of the operations such as matched moulds, thermoforming, trimming next time;
Above-mentioned lifting drive mechanism is that hydraulic jack 80, overturning drive device are the control of servomotor 9 by PLC control module 7, thereby the operations such as the thermoforming, trimming, the demoulding of this thermoforming machine can be carried out continuously, improved the production efficiency of this thermoforming machine;
Above-mentioned PLC control module 7 is prior art, is just no longer further introduced at this.
As shown in Figure 5, lifting drive mechanism in embodiment 2 comprises cam motor 10 and cam mechanism, above-mentioned cam mechanism comprises cam 11 and driven member 12, above-mentioned cam motor 10 and cam 11 are arranged on respectively in frame 1, above-mentioned cam motor 10 is in transmission connection with cam 11, and above-mentioned cam motor 10 is electrically connected with the signal input part of PLC control module 7; One end of above-mentioned driven member 12 and cam 11 are in transmission connection, and in the other end of above-mentioned driven member 12 and elevating drive mechanism, the upper end B of the first side link 81 is in transmission connection;
Overturning drive device in embodiment 2 adopts rotary cylinder 90, and the cylinder machine of above-mentioned rotary cylinder 90 is fixedly mounted on guide pin bushing 3, and above-mentioned rotary cylinder 90 is in transmission connection with the rotating shaft 60 of bed die 6; Above-mentioned rotary cylinder 90 is electrically connected with the signal input part of PLC control module 7.
The operation principle of the operation principle of embodiment 2 and embodiment 1 is basic identical, is just no longer further introduced at this.
Claims (9)
1. a thermoforming machine, is characterized in that: comprise frame, column, guide pin bushing, upper bolster, mold, bed die, lifting drive, overturning drive device and PLC control module, above-mentioned column is located in frame vertically; Upper bolster is fixedly mounted on the upper end of column, and mold is located on upper bolster; Above-mentioned guide pin bushing can slide up and down to be arranged on column, and guide pin bushing is positioned at the below of upper bolster; Bed die is located on guide pin bushing rotationally by rotating shaft, and bed die is provided with at least one working face, and the working face of bed die coordinates with mold matched moulds or die sinking; Above-mentioned lifting drive is located in frame, and lifting drive is connected with the rotating shaft transmission of bed die; Above-mentioned overturning drive device is located on guide pin bushing, and overturning drive device is connected with the rotating shaft transmission of bed die; The signal output part of above-mentioned PLC control module is electrically connected with lifting drive, overturning drive device respectively.
2. according to thermoforming machine claimed in claim 1, it is characterized in that: described bed die is provided with two working faces, above-mentioned two working faces are symmetrical arranged with respect to the rotating shaft of bed die.
3. according to thermoforming machine claimed in claim 1, it is characterized in that: described bed die is provided with four working faces, above-mentioned four working faces are symmetrical arranged with respect to the rotating shaft of bed die.
4. according to thermoforming machine claimed in claim 1, it is characterized in that: described overturning drive device adopts servomotor, and the fuselage of above-mentioned servomotor is fixedly mounted on guide pin bushing, and above-mentioned servomotor is connected with the rotating shaft transmission of bed die; Above-mentioned servomotor is electrically connected with the signal input part of PLC control module.
5. according to thermoforming machine claimed in claim 1, it is characterized in that: described overturning drive device adopts rotary cylinder, and the cylinder machine of above-mentioned rotary cylinder is fixedly mounted on guide pin bushing, and above-mentioned rotary cylinder is connected with the rotating shaft transmission of bed die; Above-mentioned rotary cylinder is electrically connected with the signal input part of PLC control module.
6. according to thermoforming machine claimed in claim 1, it is characterized in that: described lifting drive comprises lifting drive mechanism and elevating drive mechanism, above-mentioned lifting drive mechanism and elevating drive mechanism are located at respectively in frame, and above-mentioned lifting drive mechanism is connected with the rotating shaft transmission of bed die by elevating drive mechanism; Above-mentioned lifting drive mechanism is electrically connected with the signal input part of PLC control module.
7. according to thermoforming machine claimed in claim 6, it is characterized in that: described lifting drive mechanism adopts hydraulic jack, and the cylinder body of above-mentioned hydraulic jack is located in frame, and piston rod and the elevating drive mechanism of above-mentioned hydraulic jack are in transmission connection; Above-mentioned hydraulic jack is electrically connected with the signal input part of PLC control module.
8. according to thermoforming machine claimed in claim 6, it is characterized in that: described lifting drive mechanism comprises cam motor and cam mechanism, above-mentioned cam mechanism comprises cam and driven member, above-mentioned cam motor and cam are arranged on respectively in frame, above-mentioned cam motor is connected with cam drive, and above-mentioned cam motor is electrically connected with the signal input part of PLC control module; One end of above-mentioned driven member is connected with cam drive, and the other end and the elevating drive mechanism of above-mentioned driven member are in transmission connection.
9. according to thermoforming machine claimed in claim 6, it is characterized in that: described elevating drive mechanism comprises the first side link, the second side link, middle brace rod and drive rod; The lower end of the lower end of above-mentioned the first side link and the second side link is hinged with frame respectively, the upper end of the upper end of above-mentioned the first side link and the second side link is hinged with the two ends of middle brace rod respectively, and above-mentioned the first side link, the second side link, middle brace rod and frame form a quadric chain; The upper end of above-mentioned the first side link is connected with lifting drive mechanism driving; The upper end of the lower end of above-mentioned drive rod and the second side link is in transmission connection, and the upper end of above-mentioned drive rod is connected with the rotating shaft transmission of bed die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210112756.6A CN102632604B (en) | 2012-04-14 | 2012-04-14 | Thermoforming machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210112756.6A CN102632604B (en) | 2012-04-14 | 2012-04-14 | Thermoforming machine |
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| CN102632604A CN102632604A (en) | 2012-08-15 |
| CN102632604B true CN102632604B (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210112756.6A Expired - Fee Related CN102632604B (en) | 2012-04-14 | 2012-04-14 | Thermoforming machine |
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