CN113232230A - Rotary forming device in extruder - Google Patents
Rotary forming device in extruder Download PDFInfo
- Publication number
- CN113232230A CN113232230A CN202110550699.9A CN202110550699A CN113232230A CN 113232230 A CN113232230 A CN 113232230A CN 202110550699 A CN202110550699 A CN 202110550699A CN 113232230 A CN113232230 A CN 113232230A
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- China
- Prior art keywords
- shaft
- mould
- connecting shaft
- extruder
- molding apparatus
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/03—Injection moulding apparatus
- B29C45/04—Injection moulding apparatus using movable moulds or mould halves
- B29C45/0441—Injection moulding apparatus using movable moulds or mould halves involving a rotational movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
Abstract
The invention discloses a rotary forming device in an extruder, which comprises: the cooling device comprises a rack, a cooling groove is arranged on the rack, a speed reducing motor is arranged on the rack, a driving gear is arranged on an output shaft of the speed reducing motor, a driven gear capable of being meshed with the driving gear is arranged on the rack, a connecting shaft capable of moving left and right is connected to the driven gear, and the right end of the connecting shaft is connected with a push-pull mechanism; the cooling device is characterized in that a rotating shaft is rotatably arranged on the cooling groove and connected with the left end of the connecting shaft, six rotating frames are uniformly distributed on the rotating shaft along the circumference, a mold is respectively arranged on each rotating frame, a molding cavity is respectively arranged in each mold, a fixed seat is arranged above the cooling groove, and a positioning mechanism and a demolding mechanism are arranged on the fixed seat. The invention has the advantage of greatly improving the production efficiency.
Description
Technical Field
The present invention relates to a rotary molding apparatus in an extruder.
Background
The discharge port of the extruder is connected with the forming device, so that the plastic in the extruder can be discharged into the forming device for cooling and forming. But forming device on the existing market all only has one shaping chamber, and the plastic cooling in the shaping chamber after need waiting in the extruder, stereotype, discharge can carry out the extrusion moulding work of next time, just so greatly reduced work efficiency.
Disclosure of Invention
The invention aims to provide a rotary forming device in an extruder, which can improve the extrusion forming efficiency.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a rotary molding apparatus in an extruder, comprising: the cooling device comprises a rack, wherein a cooling groove is formed in the rack, a speed reducing motor is arranged on the rack positioned on the right side of the cooling groove, a driving gear is arranged on an output shaft of the speed reducing motor, a driven gear capable of being meshed with the driving gear is arranged on the rack, a connecting shaft is connected onto the driven gear, the left end and the right end of the connecting shaft respectively extend into two first linear bearing seats to be connected with a first linear bearing, and the right end of the connecting shaft is connected with a push-pull mechanism; the left side and the right side of the cooling tank are respectively provided with a second linear bearing seat, the two second linear bearing seats are respectively provided with a second linear bearing, a rotating shaft is connected between the two second linear bearings, the right end of the rotating shaft is connected with the left end of the connecting shaft, six rotating frames are uniformly distributed on the rotating shaft positioned in the cooling tank along the circumference, the six rotating frames are respectively provided with a mould, each mould is respectively provided with a forming cavity penetrating through the left side wall and the right side wall of the mould, when any mould rotates to the highest position, the forming cavity of the mould can be aligned with the discharge hole of the extruder, a fixed seat is arranged above the cooling tank, the fixed seat is provided with a positioning mechanism capable of positioning the mould rotating to the highest position, the fixed seat is also provided with a demoulding mechanism, when the mould positioned at the highest position is positioned by the positioning mechanism, the demoulding mechanism can carry out demoulding operation on the plastic cooled and formed in the mould adjacent to the mould at the highest position.
Further, in the rotary molding apparatus in an extruder, the push-pull mechanism includes: the output shaft of the first hydraulic cylinder is connected with a T-shaped shaft through a first coupler, a ball bearing is arranged on the T-shaped shaft, the ball bearing is abutted against the large-diameter end of the T-shaped shaft, a bearing hole is formed in the right end of the connecting shaft, the T-shaped shaft provided with the ball bearing extends into the bearing hole of the connecting shaft, the outer ring of the ball bearing is abutted against the hole wall of the bearing hole, a bearing cover plate is arranged at the right end of the connecting shaft, and the bearing cover plate is abutted against the ball bearing.
Further, in the rotational molding apparatus in the extruder, the right end of the rotating shaft is connected to the left end of the connecting shaft through a second coupling.
Further, in the rotary molding apparatus in an extruder, the positioning mechanism includes: and the second hydraulic cylinder is provided with a push plate on an output shaft of the second hydraulic cylinder, and the push plate can be attached to the right side wall of the mold.
Further, in the rotational molding apparatus in an extruder described above, the demolding mechanism includes: and the output shaft of the third hydraulic cylinder is provided with a top block matched with the forming cavity.
Further, in the rotary forming device in the extruder, a reinforcing rib is provided between every two adjacent rotary frames.
Further, in the rotational molding device in the extruder, a plurality of lifting rings are arranged on the frame.
Further, in the rotational molding apparatus in the extruder, a plurality of supporting legs are provided at the bottom of the frame.
The invention has the advantages that: be provided with a plurality of moulds that can link to each other with the discharge gate of extruder in proper order, when extrusion mechanism carries out injecting glue during operation to a mould, other unloaded moulds just are in and wait to annotate the state, and other moulds of filling up the plastic can air cooling or cool off in the coolant liquid, and other refrigerated moulds of accomplishing carry out drawing of patterns work under demoulding mechanism's effect, just so can incessantly must mould plastics, cooling forming, drawing of patterns work, have improved production efficiency greatly.
Drawings
FIG. 1 is a schematic view of a rotary molding apparatus in an extruder according to the present invention.
Fig. 2 is a schematic view of the structure in the top view of fig. 1.
Fig. 3 is a schematic structural view of the rotating frame of fig. 1.
Fig. 4 is a partially enlarged structural view in the direction a of fig. 2.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the preferred embodiments.
As shown in fig. 1, 2, 3, and 4, the rotational molding apparatus of an extruder according to the present invention includes: the lifting device comprises a frame 1, wherein a plurality of lifting rings 11 are arranged on the frame 1, and a plurality of supporting legs 12 are arranged at the bottom of the frame 1. Be provided with cooling bath 2 in frame 1, be provided with gear motor 3 on frame 1 that is located cooling bath 2 right side, be provided with driving gear 31 on gear motor 3's the output shaft, be provided with driven gear 4 that can mesh with driving gear 31 on frame 1, be connected with connecting axle 41 on driven gear 4, both ends stretch into two first straight-line bearings 42 respectively about connecting axle 41 and link to each other with first linear bearing, the right-hand member of connecting axle 41 links to each other with push-and-pull mechanism, push-and-pull mechanism includes: the first hydraulic cylinder 5 is characterized in that an output shaft of the first hydraulic cylinder 5 is connected with a T-shaped shaft 52 through a first coupler 51, a ball bearing 53 is arranged on the T-shaped shaft 52, the ball bearing 53 abuts against the large-diameter end of the T-shaped shaft 52, a bearing hole is formed in the right end of the connecting shaft 41, the T-shaped shaft 52 provided with the ball bearing 53 extends into the bearing hole of the connecting shaft 41, the outer ring of the ball bearing 53 abuts against the hole wall of the bearing hole, a bearing cover plate 43 is arranged at the right end of the connecting shaft 41, and the bearing cover plate 43 abuts against the ball bearing 53. A second linear bearing seat 21 is respectively arranged at the left side and the right side of the cooling tank 2, a second linear bearing is respectively arranged in the two second linear bearing seats 21, a rotating shaft 22 is connected between the two second linear bearings, the right end of the rotating shaft 22 is connected with the left end of the connecting shaft 41 through a second coupling 23, six rotating frames 24 are uniformly distributed on the rotating shaft 22 in the cooling tank 2 along the circumference, a reinforcing rib 25 is arranged between every two adjacent rotating frames 24, a mould 26 is respectively arranged on the six rotating frames 24, a forming cavity 27 penetrating through the left side wall and the right side wall of the mould 26 is respectively arranged in each mould 26, when any mould 26 rotates to the highest position, the forming cavity 27 of the mould 26 can be aligned with the discharge hole of the extruder, a fixed seat 6 is arranged above the cooling tank 2, and a positioning mechanism capable of positioning the mould 26 rotating to the highest position is arranged on the fixed seat 6, the fixed seat 6 is provided with a demoulding mechanism which can demould the plastic cooled and formed in the mould 26 adjacent to the mould 26 at the highest position when the mould 26 at the highest position is positioned by the positioning mechanism. The positioning mechanism includes: a second hydraulic cylinder 61 arranged on the fixed seat 6, wherein a push plate 62 is arranged on an output shaft of the second hydraulic cylinder 61, and the push plate 62 can be attached to the right side wall of the mold 26; the demolding mechanism includes: and a third hydraulic cylinder 63 arranged on the fixed seat 6, wherein an ejector block 64 matched with the molding cavity 27 is arranged on an output shaft of the third hydraulic cylinder 63.
The working principle of the invention is as follows: starting the speed reducing motor 3, the speed reducing motor 3 drives the connecting shaft 41 and the rotating shaft 22 to rotate through gear transmission between the driving gear 31 and the driven gear 4, the rotating shaft 22 drives the rotating frame 24 and the die 26 on the rotating frame 24 to rotate together, when a certain die 26 rotates to the highest position, the second hydraulic cylinder 61 drives the push plate 62 to abut against the right side wall of the highest die 26 and apply a thrust to the left, meanwhile, the first hydraulic cylinder 5 pushes the T-shaped shaft 52 to the left, the T-shaped shaft 52 drives the connecting shaft 41 to move to the left in the two first linear bearing seats 42, the connecting shaft 41 drives the rotating shaft 22 to move to the left in the two second linear bearing seats 21, the rotating shaft 22 drives the rotating frame 24 and the die 26 to move to the left, the first hydraulic cylinder 5 and the second hydraulic cylinder 61 simultaneously drive the rotating shaft 22, the rotating frame 24 and the die 26 to move to the left until the die 26 at the highest position is connected with a discharge port of the extruder, when the connecting shaft 41 moves leftward, the driven gear 4 is moved leftward together, so that the driven gear 4 is separated from the driving gear 31, and the rotating shaft 22 is not rotated any more. The plastic in the extruder can thus be injected through the outlet into the molding cavity 27 of the uppermost mold 26, at which point the pusher plate 62 acts as a seal. When the cavity 27 is filled with plastic, the second hydraulic cylinder 61 drives the push plate 62 to move away from the mold 26, the first hydraulic cylinder 5 pulls the T-shaped shaft 52 to the right, the T-shaped shaft 52 drives the connecting shaft 41 and the rotating shaft 22 to move to the right, meanwhile, the rotating frame 24 on the rotating shaft 22 and the mold 26 move to the right together, the driven gear 4 on the connecting shaft 41 is meshed with the driving gear 31 at the moment, the speed reduction motor 3 drives the connecting shaft 41 and the rotating shaft 22 to rotate through gear transmission between the driving gear 31 and the driven gear 4, and thus, the six molds 26 are sequentially connected with a discharge port of the extruder and then are filled with the plastic to be molded. When the mold 26 filled with plastic rotates into the cooling tank 2, cooling water is injected into the cooling tank 2, the liquid level of the cooling water is lower than that of the rotating shaft 22, and the mold 26 filled with plastic sinks into the cooling liquid to accelerate cooling. When the cooling mold 26 rotates to a position aligned with the demolding mechanism, the rotating shaft 22 will not rotate because the mold 26 located at the highest position is positioned by the positioning mechanism, and at this time, the third hydraulic cylinder 63 on the demolding mechanism drives the ejector block 64 to eject the cooling molded plastic in the mold 26, so that the plastic can be rapidly demolded from the molding cavity 27 of the mold 26.
The invention has the advantages that: be provided with a plurality of moulds that can link to each other with the discharge gate of extruder in proper order, when extrusion mechanism carries out injecting glue during operation to a mould, other unloaded moulds just are in and wait to annotate the state, and other moulds of filling up the plastic can air cooling or cool off in the coolant liquid, and other refrigerated moulds of accomplishing carry out drawing of patterns work under demoulding mechanism's effect, just so can incessantly must mould plastics, cooling forming, drawing of patterns work, have improved production efficiency greatly.
Claims (8)
1. A rotary molding apparatus in an extruder, comprising: the frame, its characterized in that: the rack is provided with a cooling groove, the rack positioned on the right side of the cooling groove is provided with a speed reducing motor, an output shaft of the speed reducing motor is provided with a driving gear, the rack is provided with a driven gear which can be meshed with the driving gear, the driven gear is connected with a connecting shaft, the left end and the right end of the connecting shaft respectively extend into two first linear bearing seats to be connected with first linear bearings, and the right end of the connecting shaft is connected with a push-pull mechanism; the left side and the right side of the cooling tank are respectively provided with a second linear bearing seat, the two second linear bearing seats are respectively provided with a second linear bearing, a rotating shaft is connected between the two second linear bearings, the right end of the rotating shaft is connected with the left end of the connecting shaft, six rotating frames are uniformly distributed on the rotating shaft positioned in the cooling tank along the circumference, the six rotating frames are respectively provided with a mould, each mould is respectively provided with a forming cavity penetrating through the left side wall and the right side wall of the mould, when any mould rotates to the highest position, the forming cavity of the mould can be aligned with the discharge hole of the extruder, a fixed seat is arranged above the cooling tank, the fixed seat is provided with a positioning mechanism capable of positioning the mould rotating to the highest position, the fixed seat is also provided with a demoulding mechanism, when the mould positioned at the highest position is positioned by the positioning mechanism, the demoulding mechanism can carry out demoulding operation on the plastic cooled and formed in the mould adjacent to the mould at the highest position.
2. The rotational molding apparatus in an extruder according to claim 1, characterized in that: the push-pull mechanism comprises: the output shaft of the first hydraulic cylinder is connected with a T-shaped shaft through a first coupler, a ball bearing is arranged on the T-shaped shaft, the ball bearing is abutted against the large-diameter end of the T-shaped shaft, a bearing hole is formed in the right end of the connecting shaft, the T-shaped shaft provided with the ball bearing extends into the bearing hole of the connecting shaft, the outer ring of the ball bearing is abutted against the hole wall of the bearing hole, a bearing cover plate is arranged at the right end of the connecting shaft, and the bearing cover plate is abutted against the ball bearing.
3. The rotational molding apparatus in an extruder according to claim 1 or 2, characterized in that: the right end of the rotating shaft is connected with the left end of the connecting shaft through a second coupling.
4. The rotational molding apparatus in an extruder according to claim 1 or 2, characterized in that: the positioning mechanism includes: and the second hydraulic cylinder is provided with a push plate on an output shaft of the second hydraulic cylinder, and the push plate can be attached to the right side wall of the mold.
5. The rotational molding apparatus in an extruder according to claim 1 or 2, characterized in that: the demolding mechanism includes: and the output shaft of the third hydraulic cylinder is provided with a top block matched with the forming cavity.
6. The rotational molding apparatus in an extruder according to claim 1 or 2, characterized in that: and a reinforcing rib is arranged between every two adjacent rotating frames.
7. The rotational molding apparatus in an extruder according to claim 1 or 2, characterized in that: a plurality of lifting rings are arranged on the frame.
8. The rotational molding apparatus in an extruder according to claim 1 or 2, characterized in that: the bottom of the frame is provided with a plurality of supporting legs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110550699.9A CN113232230A (en) | 2021-05-18 | 2021-05-18 | Rotary forming device in extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110550699.9A CN113232230A (en) | 2021-05-18 | 2021-05-18 | Rotary forming device in extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113232230A true CN113232230A (en) | 2021-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110550699.9A Pending CN113232230A (en) | 2021-05-18 | 2021-05-18 | Rotary forming device in extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113232230A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115447061A (en) * | 2022-11-10 | 2022-12-09 | 晋江兴泰制罐有限公司 | Injection molding process of PP (polypropylene) plastic product with good high-temperature performance and high toughness |
-
2021
- 2021-05-18 CN CN202110550699.9A patent/CN113232230A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115447061A (en) * | 2022-11-10 | 2022-12-09 | 晋江兴泰制罐有限公司 | Injection molding process of PP (polypropylene) plastic product with good high-temperature performance and high toughness |
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