CN213733380U - Novel blowing die head is used in production of thermal contraction membrane - Google Patents
Novel blowing die head is used in production of thermal contraction membrane Download PDFInfo
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- CN213733380U CN213733380U CN202021576234.8U CN202021576234U CN213733380U CN 213733380 U CN213733380 U CN 213733380U CN 202021576234 U CN202021576234 U CN 202021576234U CN 213733380 U CN213733380 U CN 213733380U
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Abstract
The utility model relates to a blowing die head field discloses a production of thermal contraction membrane is with novel blowing die head, including the die head body, cylindrical inner chamber has been seted up in the die head body, cylindrical inner chamber comprises cylindrical section and the radius bench section that sets up from top to bottom, the overhead tank has been seted up to cylindrical inner chamber's interior top, be provided with the mold core in overhead tank and the cylindrical inner chamber, the mold core comprises the cylindrical section and the radius bench section that set up from top to bottom, and the upper end of mold core is located the overhead tank, the symmetry is equipped with stop gear between mold core and the overhead tank. The utility model has the advantages of it is following and effect: the motor passes through bevel gear group with torque transmission for the screw rod to drive the mold core at cylindrical inner chamber linear movement under spacing condition, change the blowing thickness that the film was adjusted to the size in clearance between the radius bench section of mold core and the radius bench section of cylindrical inner chamber, need not the shut down, the manual regulation, adjust efficiently and avoid the error, improve the production progress.
Description
Technical Field
The utility model relates to a blowing die head technical field, in particular to production of thermal contraction membrane is with novel blowing die head.
Background
The existing heat shrinkable film is usually produced by a blow molding production mode of a blow molding machine, PE is used as a raw material, and the raw material is stirred, heated, extruded and sent into a die head for blow molding to prepare a plastic film. The size of the discharge gap in the die head is critical to the thickness control of the thin film, the quality of the thin film is influenced, the discharge gap is formed by the die head and the die core arranged in the die head, when the thickness of the thin film needs to be changed, the vertical height of the die core needs to be adjusted manually, the adjusting efficiency is low, higher errors exist, the machine is required to be stopped for adjustment, and the production progress is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a production of thermal contraction membrane is with novel blowing die head has the effect that can adjust film production thickness in real time.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a novel blow molding die head for producing a thermal shrinkage film comprises a die head body, wherein a cylindrical inner cavity is formed in the die head body and consists of a cylindrical section and an inverted circular truncated cone section which are arranged from top to bottom, a top groove is formed in the inner top end of the cylindrical inner cavity, mold cores are arranged in the top groove and the cylindrical inner cavity and consist of a cylindrical section and an inverted circular truncated cone section which are arranged from top to bottom, the upper ends of the mold cores are located in the top groove, limiting mechanisms are symmetrically arranged between the mold cores and the top groove, threaded hole passages are formed in the upper ends of the mold cores, threaded holes are connected with a screw rod in a threaded manner, the upper end of the screw rod penetrates through the top groove and is rotatably connected with the top groove, the upper end of the screw rod located outside the top groove is connected with a motor through a bevel gear set, an installation boss is integrally formed in the upper end of the die head body, the motor is fixedly installed on the installation boss, and an upper blowing flow passage is formed in the screw rod, the upper blowing runner is communicated with the threaded hole, the inner bottom end of the threaded hole is provided with a lower blowing runner communicated with the outside, and the die head body is internally symmetrically provided with two feeding runners which are symmetrically arranged around the cylindrical inner cavity and are communicated with the cylindrical inner cavity.
By adopting the technical scheme, the thickness of the film is determined by the size of the gap between the inverted circular truncated cone section of the cylindrical inner cavity and the inverted circular truncated cone section of the mold core, the motor transmits torque to the screw rod through the bevel gear set, the mold core moves along the axis of the mold core along with the rotation of the screw rod under the limiting condition of the limiting mechanism, and then the mold core moves in the vertical direction in the cylindrical inner cavity to change the gap between the inverted circular truncated cone section of the mold core and the inverted circular truncated cone section of the cylindrical inner cavity.
Molten materials are fed into a gap between the cylindrical inner cavity and the mold core through the feeding flow channel, and the blowing equipment performs blow molding on the materials through the upper blowing flow channel, the threaded hole channel and the lower blowing flow channel in sequence.
The utility model discloses a further set up to: stop gear includes the stopper with mold core fixed connection, stop gear still including set up in the top inslot wall and with stopper sliding connection's spacing groove.
Through adopting above-mentioned technical scheme, carry out spacing to the mold core, at the in-process of mold core motion in the vertical direction, the stopper slides in the spacing groove.
The utility model discloses a further set up to: the bevel gear set is composed of two bevel gears which are vertically meshed, wherein one bevel gear is fixed at the output end of the motor, and the other bevel gear is fixedly sleeved on the screw rod.
By adopting the technical scheme, the torque in the horizontal direction is converted into the torque in the vertical direction through the meshing of the two bevel gears.
The utility model discloses a further set up to: and one end of the upper air blowing flow channel, which is positioned outside the threaded hole channel, is connected with air blowing equipment.
By adopting the technical scheme, the blowing equipment is the prior art and aims at blowing the film.
The utility model discloses a further set up to: the inner diameters of the upper blowing flow channel and the lower blowing flow channel are the same.
By adopting the technical scheme, the air blowing pressure is ensured in real time.
The utility model discloses a further set up to: a plurality of cooling flow channels are uniformly formed in the die head body in the circumferential direction.
By adopting the technical scheme, in the blow molding process, the blown film is cooled by blowing through the plurality of cooling runners.
The utility model has the advantages that: the motor passes through bevel gear group with torque transmission for the screw rod to drive the mold core at cylindrical inner chamber linear movement under spacing condition, change the blowing thickness that the film was adjusted to the size in clearance between the radius bench section of mold core and the radius bench section of cylindrical inner chamber, need not the shut down, the manual regulation, adjust efficiently and avoid the error, improve the production progress.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a front perspective view of the present embodiment.
Fig. 2 is an enlarged schematic view of a structure shown in fig. 1.
In the figure, 1, a die body; 2. a cylindrical inner cavity; 3. a mold core; 4. a feed runner; 5. a cooling flow channel; 6. A threaded bore; 7. a screw; 8. an upper blowing gas flow channel; 9. a lower blowing gas flow channel; 10. a top groove; 11. a limiting groove; 12. a limiting block; 13. a motor; 14. a bevel gear set.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Examples
A novel blow molding die head for producing a heat shrinkable film comprises a die head body 1, wherein a cylindrical inner cavity 2 is formed in the die head body 1, the cylindrical inner cavity 2 consists of a cylindrical section and an inverted circular truncated cone section which are arranged from top to bottom, a top groove 10 is formed in the inner top end of the cylindrical inner cavity 2, a die core 3 is arranged in the top groove 10 and the cylindrical inner cavity 2 correspondingly, the die core 3 consists of a cylindrical section and an inverted circular truncated cone section which are arranged from top to bottom, the upper end of the die core 3 is positioned in the top groove 10, limiting mechanisms are symmetrically arranged between the die core 3 and the top groove 10 and comprise limiting blocks 12 fixedly connected with the die core 3, the limiting mechanisms further comprise limiting grooves 11 which are arranged on the inner wall of the top groove 10 and are in sliding connection with the limiting blocks 12, threaded pore channels 6 are formed in the upper end of the die core 3, screw rods 7 are connected with the threaded pore channels 6 through threads, and the upper ends of the screw rods 7 penetrate through the top groove 10 and are in rotating connection with the top groove 12, the rotary connection is realized through a sealed bearing (the bearing is not shown in the figure), the upper end of a screw 7 positioned outside a top groove 10 is connected with a motor 13 through a bevel gear set 14, the bevel gear set 14 is composed of two bevel gears which are vertically meshed, one bevel gear is fixed at the output end of the motor 13, the other bevel gear is fixedly sleeved on the screw 7 to realize the change of the torque direction, the upper end of a die head body 1 is integrally formed with a mounting boss, the motor 13 is fixedly mounted on the mounting boss, an upper blowing channel 8 is arranged in the screw 7, the upper blowing channel 8 is communicated with a threaded channel 6, one end of the upper blowing channel 8 positioned outside the threaded channel 6 is connected with a blowing device, the inner bottom end of the threaded channel 6 is provided with a lower blowing channel 9 communicated with the outside, the inner diameters of the upper blowing channel 8 and the lower blowing channel 9 are the same, two feeding channels 4 which are symmetrically arranged and communicated with a cylindrical inner cavity 2 are symmetrically arranged in the die head body 1, a plurality of cooling flow channels 5 are uniformly arranged in the inner circumference of the die head body 1.
In this embodiment, the size of the gap between the inverted circular truncated cone section of the mold core 3 and the inverted circular truncated cone section of the cylindrical inner cavity 2 can be adjusted according to specific needs to adjust the blowing thickness of the film, and the size of the gap is in direct proportion to the blowing thickness, specifically, the motor 13 transmits the torque to the screw 7 through the bevel gear set 14, the mold core 3 moves along the axis of the mold core 3 along with the rotation of the screw 7 under the limiting condition of the limiting mechanism, the mold core 3 further moves in the vertical direction in the cylindrical inner cavity 2, and the gap between the inverted circular truncated cone section of the mold core 3 and the inverted circular truncated cone section of the cylindrical inner cavity 2 is changed.
Claims (6)
1. The utility model provides a production of thermal contraction membrane is with novel blowing die head, includes die head body (1), its characterized in that: the die head is characterized in that a cylindrical inner cavity (2) is formed in the die head body (1), the cylindrical inner cavity (2) is composed of a cylindrical section and an inverted circular truncated cone section which are arranged from top to bottom, a top groove (10) is formed in the inner top end of the cylindrical inner cavity (2), the top groove (10) and the cylindrical inner cavity (2) are internally provided with a die core (3), the die core (3) is composed of a cylindrical section and an inverted circular truncated cone section which are arranged from top to bottom, the upper end of the die core (3) is positioned in the top groove (10), limiting mechanisms are symmetrically arranged between the die core (3) and the top groove (10), the upper end of the die core (3) is provided with a threaded hole (6), the threaded hole (6) is in threaded connection with a screw rod (7), the upper end of the screw rod (7) penetrates through the top groove (10) and is in rotary connection with the top groove, and the upper end of the screw rod (7) positioned outside the top groove (10) is connected with a motor (13) through a bevel gear set (14), the die head comprises a die head body (1) and is characterized in that a mounting boss is integrally formed at the upper end of the die head body (1), a motor (13) is fixedly mounted on the mounting boss, an upper blowing channel (8) is formed in a screw rod (7), the upper blowing channel (8) is communicated with a threaded channel (6), a lower blowing channel (9) communicated with the outside is formed at the inner bottom end of the threaded channel (6), and two feeding channels (4) which are symmetrically arranged about a cylindrical inner cavity (2) and are communicated with the cylindrical inner cavity are symmetrically formed in the die head body (1).
2. The novel blowing die head for producing the heat shrinkable film of claim 1, wherein: stop gear includes stopper (12) with mold core (3) fixed connection, stop gear still including set up in top groove (10) inner wall and with stopper (12) sliding connection's spacing groove (11).
3. The novel blowing die head for producing the heat shrinkable film of claim 1, wherein: the bevel gear set (14) is composed of two bevel gears which are vertically meshed, wherein one bevel gear is fixed at the output end of the motor (13), and the other bevel gear is fixedly sleeved on the screw (7).
4. The novel blowing die head for producing the heat shrinkable film of claim 1, wherein: and one end of the upper blowing air channel (8) positioned outside the threaded pore channel (6) is connected with blowing equipment.
5. The novel blowing die head for producing the heat shrinkable film of claim 1, wherein: the inner diameters of the upper blowing air channel (8) and the lower blowing air channel (9) are the same.
6. The novel blowing die head for producing the heat shrinkable film of claim 1, wherein: a plurality of cooling flow channels (5) are uniformly formed in the inner circumference of the die head body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021576234.8U CN213733380U (en) | 2020-08-03 | 2020-08-03 | Novel blowing die head is used in production of thermal contraction membrane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021576234.8U CN213733380U (en) | 2020-08-03 | 2020-08-03 | Novel blowing die head is used in production of thermal contraction membrane |
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| CN213733380U true CN213733380U (en) | 2021-07-20 |
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| CN202021576234.8U Active CN213733380U (en) | 2020-08-03 | 2020-08-03 | Novel blowing die head is used in production of thermal contraction membrane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113858599A (en) * | 2021-09-24 | 2021-12-31 | 江苏中大包装材料有限公司 | Core-withdrawing turnover type plastic film blowing mechanism and core-withdrawing method thereof |
-
2020
- 2020-08-03 CN CN202021576234.8U patent/CN213733380U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113858599A (en) * | 2021-09-24 | 2021-12-31 | 江苏中大包装材料有限公司 | Core-withdrawing turnover type plastic film blowing mechanism and core-withdrawing method thereof |
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