CN109489502B - Automatic unload syllogic screw press forming device of medicine - Google Patents
Automatic unload syllogic screw press forming device of medicine Download PDFInfo
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- CN109489502B CN109489502B CN201810619661.0A CN201810619661A CN109489502B CN 109489502 B CN109489502 B CN 109489502B CN 201810619661 A CN201810619661 A CN 201810619661A CN 109489502 B CN109489502 B CN 109489502B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
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Abstract
The invention relates to a three-section type screw press forming device capable of automatically discharging a medicine, and belongs to the field of screw press forming. According to the screw press forming device, the screw press forming die comprises a feeding section die, a transition section die and a forming section die; the constant-pressure hydraulic cylinder and the transition section die are fixed on a left base with a pulley at the bottom through support plates, the feeding section die is fixed on a right support after being butted with the screw extruder, and a guide pillar fixed with the support plate of the hydraulic cylinder penetrates through guide holes on the periphery of the support plate of the transition section and is fixed with the support plate of the feeding section; the forming section mould is sleeved on a guide pillar between the hydraulic cylinder support plate and the transition section support plate through a support plate; the constant pressure hydraulic cylinder is connected with the support plates of the forming section mould and the transition section mould and the support plates of the feeding section mould through the hydraulic cylinders. According to the screw press forming device, the mold does not need to be detached when the medicine is taken, so that the production efficiency is improved, the compaction degree of a formed product is improved by pressure building at the two ends of the screw press forming mold, and the screw press forming of large-size medicines is realized.
Description
Technical Field
The invention relates to a three-section type screw press forming device capable of automatically discharging a medicine, and belongs to the field of screw press forming.
Background
At present, in the processing production of gunpowder polymer, the die screw pressing is a very important production means. In the structure of the existing screw forming die, one end of the die is connected with a screw extruder, and the other end of the die is open and directly exposed in the air, so the pressure is only atmospheric pressure. The polymer extruded into a molten state is flowed into a mold and directly molded by cooling. The structure of the existing screw forming die has many disadvantages, firstly, because the pressure at one end of the die is only atmospheric pressure, the polymer in a molten state is not subjected to enough pressure to form the die, so that the product has low compactness, a large number of air holes and low qualification rate, and is almost impossible to produce large-size medicines. To solve this problem, a mold with both closed ends may be used to achieve sufficient screw pressure, but if this structure is used, the following problems occur: the die needs to be disassembled once when each explosive column is produced, so that the production efficiency is greatly reduced; in addition, because the explosive column has certain expansibility in a closed die, the explosive column can be extruded and the like in the taking-out process, so that the operation difficulty is increased, and potential safety hazards exist.
Disclosure of Invention
The invention aims to solve the problems that a traditional screw press forming die with one open end is poor in product quality, large-size medicines cannot be processed and the like, provide a screw press forming device with two closed ends, and solve the problems that the production efficiency of disassembling the die of the screw press forming device with two closed ends is low and the safety is poor.
The purpose of the invention is realized by the following technical scheme:
the invention discloses a three-section type screw forming device capable of automatically discharging a pesticide, which comprises a left base, a right support, a screw extruder, a screw forming die and a constant-pressure hydraulic cylinder, wherein the screw forming die is arranged on the left base;
the screw forming die is a three-section structure formed by radially cutting an integral die and respectively comprises a feeding section die matched with the inner shape of a feeding section of the integral die, a transition section die matched with the inner shape of a transition section of the integral die and a forming section die matched with the inner shape of a forming section of the integral die, and butt-joint rabbets matched with each other are respectively processed at the connecting positions of the feeding section die, the transition section die and the forming section die;
the constant-pressure hydraulic cylinder comprises a piston rod, a cylinder body, an overflow valve, a rear oil storage cavity control valve, an oil pump and an oil storage tank;
the head of the piston rod is a top head with the outer diameter matched with the inner diameter of the forming section of the screw press forming die, and the telescopic length of the piston rod is matched with the length of the inner cavity of the forming section die;
the tail part of the piston rod forms two oil storage cavities in the cylinder body, the two oil storage cavities are respectively connected with the oil storage tank through oil return pipelines, a rear oil storage cavity control valve and an oil pump are arranged between the rear oil storage cavity and the oil storage tank, the front oil storage cavity and the rear oil storage cavity are also connected through a constant pressure pipeline provided with an overflow valve, and the overflow pressure of the overflow valve is matched with the forming pressure of the screw forming material;
the constant-pressure hydraulic cylinder is horizontally fixed on the left side of the upper surface of the left base through a hydraulic cylinder support plate, the transition section die is horizontally fixed on the right side of the upper surface of the left base through a transition section support plate, and a pulley is arranged at the bottom of the left base; the feeding section die is horizontally fixed on the left side of the upper surface of the right support through a feeding section support plate, the screw extruder is fixed on the right side of the upper surface of the right support, and the inlet end of the feeding section die is connected with an outlet end flange of the screw extruder; a plurality of guide pillars which are parallel to each other are vertically fixed on the periphery of the hydraulic cylinder support plate, and the front ends of the guide pillars penetrate through guide holes on the periphery of the transition section support plate and are vertically fixed with the feeding section support plate; a forming section support plate fixed with the forming section mould is sleeved on each guide pillar between the hydraulic cylinder support plate and the feeding section support plate through guide holes on the periphery, so that the feeding section mould, the transition section mould and the forming section mould are opposite end to end and have consistent axes, the head of a piston rod of the constant-pressure hydraulic cylinder is inserted into an inner cavity of the forming section mould, and an opening is formed in the side wall of the outlet end of the forming section mould and is connected with a pressure sensor; the hydraulic cylinder support plate is connected with the forming section support plate through the forming section moving hydraulic cylinder, and the transition section support plate is connected with the feeding section support plate through the transition section moving hydraulic cylinder.
Working process
When the screw is molded, firstly, the transition section moving hydraulic cylinder pulls the transition section support plate to drive the left base to approach the feeding section support plate, so that the outlet end of the feeding section mold is in clamping butt joint with the inlet end of the transition section mold; pushing the forming section support plate to approach to the transition section support plate through the forming section moving hydraulic cylinder, so that the outlet end of the transition section mold is in clamping butt joint with the inlet end of the forming section mold, and the three-section type part butt joint is realized to form a screw forming mold assembly; then opening a rear oil storage cavity control valve and an oil pump on a connecting pipeline of a rear oil storage cavity and an oil storage tank in the constant-pressure hydraulic cylinder, filling hydraulic oil into the rear oil storage cavity through the oil pump, and enabling a piston rod of the constant-pressure hydraulic cylinder to extend forwards into a forming section of a screw forming die assembly; then closing the control valve and the oil pump of the rear oil storage cavity, adjusting the overflow pressure of the overflow valve to be matched with the forming pressure of the screw forming material, and enabling the piston rod to keep the pressure output constantly forwards; then continuously adding materials into an inlet of the screw extruder, continuously extruding the materials into the screw press forming die assembly by the screw extruder, gradually increasing the pressure of the materials in a forming section of the screw press forming die assembly under the extrusion action of the screw extruder, and gradually forming accumulation and discharging gas in the forming section of the screw press forming die assembly; when the pressure of the material in the forming section of the screw press forming die assembly is higher than the constant output pressure of the piston rod, the overflow valve is automatically opened to enable the piston rod to move backwards under the extrusion of the material, and the pressure of the material in the forming section of the screw press forming die assembly is always kept constant in the extrusion process; when the material moves to the installation position of the pressure sensor of the screw press forming die assembly, the pressure sensor receives a pressure signal, and the screw extruder is closed; after the material is cooled, firstly, a forming section support plate is pulled to approach to the direction of the hydraulic cylinder support plate through a forming section moving hydraulic cylinder, so that the pressed medicine is completely avoided after a forming section mould is separated from a transition section mould, and the medicine is cut and taken out; and then the forming section moving hydraulic cylinder pushes the forming section support plate to approach to the transition section support plate, so that the outlet end of the transition section mold is in clamping butt joint with the inlet end of the forming section mold, and the next time of pressing of the medicine can be carried out.
When needing to clear up, after accomplishing once getting it filled, remove the pneumatic cylinder through the changeover portion and promote the changeover portion extension board and drive left base and slide to the opposite side of right branch frame, make pan feeding section mould and changeover portion mould separation, the workman takes out the remaining useless medicine in pan feeding section mould and the changeover portion mould.
Advantageous effects
According to the screw pressing forming device, the screw pressing forming die with two closed ends is adopted, so that material waste is saved; the two ends of the screw pressing forming die are pressed, so that the compactness of a formed product is improved, the product quality is ensured, and the screw pressing forming of large-size medicines is realized; after the product is molded, the mold is not required to be disassembled, the medicine is ejected out through the piston rod of the constant-pressure hydraulic cylinder, the production efficiency is improved, the manual clamping time is saved, and the production risk of manual medicine taking is reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of a screw press molding apparatus according to the present invention;
FIG. 2 is a schematic structural view of a constant pressure hydraulic cylinder in the screw press molding apparatus according to the present invention;
in the figure, 1-forming section mould; 2-transition section mould; 3-feeding section mold; 4-screw extruder; 5-transition section moving hydraulic cylinder; 6-transition section support plate; 7-forming a section support plate; 8-guide column; 9-forming section moving hydraulic cylinder; 10-a hydraulic cylinder support plate; 11-a base; 12-constant pressure hydraulic cylinder; 13-feeding section supporting plate; 14-a cylinder body; 15-an overflow valve; 16-rear reserve chamber control valve; 17-an oil pump; 18-an oil storage tank; 19-a piston rod; 20-right support.
Detailed Description
The invention will be further described with reference to the following drawings and examples
Examples
The invention discloses a three-section type screw press forming device capable of automatically discharging a medicine, which comprises a left base 11, a right bracket 20, a screw extruder 4, a screw press forming die and a constant pressure hydraulic cylinder 12, wherein the screw press forming die is arranged on the left base;
the spiral forming die is a three-section structure formed by radially cutting an integral die and respectively comprises a feeding section die 3 matched with the inner shape of a feeding section of the integral die, a transition section die 2 matched with the inner shape of a transition section of the integral die and a forming section die 1 matched with the inner shape of a forming section of the integral die, and butt joints matched with each other are respectively processed at the connecting positions of the feeding section die 3, the transition section die 2 and the forming section die 1;
as shown in fig. 2, the constant pressure hydraulic cylinder 12 includes a piston rod 19, a cylinder body 14, an overflow valve 15, a rear oil storage chamber control valve 16, an oil pump 17, and an oil storage tank 18;
the head of the piston rod 19 is a top head with the outer diameter matched with the inner diameter of the forming section of the screw press forming die, and the telescopic length of the piston rod is matched with the length of the inner cavity of the forming section die;
the tail part of the piston rod 19 forms two oil storage cavities in the cylinder body 14, the two oil storage cavities are respectively connected with the oil storage tank 18 through oil return pipelines, a rear oil storage cavity control valve 16 and an oil pump 17 are arranged between the rear oil storage cavity and the oil storage tank 18, the front oil storage cavity and the rear oil storage cavity are also connected through a constant pressure pipeline provided with an overflow valve 15, and the overflow pressure of the overflow valve 15 is matched with the forming pressure of the screw forming material;
a constant-pressure hydraulic cylinder 12 is horizontally fixed on the left side of the upper surface of the left base 11 through a hydraulic cylinder support plate 10, a transition section die 2 is horizontally fixed on the right side of the upper surface of the left base 11 through a transition section support plate 6, and a pulley is arranged at the bottom of the left base 11; the feeding section die 3 is horizontally fixed on the left side of the upper surface of the right bracket 20 through a feeding section support plate 13, the screw extruder 4 is fixed on the right side of the upper surface of the right bracket 20, and the inlet end of the feeding section die 3 is connected with the outlet end flange of the screw extruder 4; a plurality of guide pillars 8 which are parallel to each other are vertically fixed on the periphery of the hydraulic cylinder support plate 10, and the front ends of the guide pillars 8 penetrate through guide holes on the periphery of the transition section support plate 6 and are vertically fixed with the feeding section support plate 13; a forming section support plate 7 fixed with the forming section mold 1 is sleeved on each guide post between a hydraulic cylinder support plate 10 and a feeding section support plate 13 through guide holes on the periphery, so that the feeding section mold 3, the transition section mold 2 and the forming section mold 1 are opposite end to end and have consistent axes, the head of a piston rod 19 of a constant-pressure hydraulic cylinder 12 is inserted into an inner cavity of the forming section mold 1, and an opening is formed in the side wall of the outlet end of the forming section mold 1 and is connected with a pressure sensor; the hydraulic cylinder support plate 10 is connected with the forming section support plate 7 through a forming section moving hydraulic cylinder 9, and the transition section support plate 6 is connected with the feeding section support plate 13 through a transition section moving hydraulic cylinder 5.
When the screw is molded, firstly, the transition section support plate 6 is pulled by the transition section moving hydraulic cylinder 5 to drive the left base 11 to approach to the feeding section support plate 13, so that the outlet end of the feeding section mold 3 is in clamping butt joint with the inlet end of the transition section mold 2; then, a forming section support plate 7 is pushed to approach to the transition section support plate 6 through a forming section moving hydraulic cylinder 9, so that the outlet end of the transition section mold 2 is in clamping butt joint with the inlet end of the forming section mold 1, and a three-section type part is in butt joint to form a screw pressing forming mold assembly; then, a rear oil storage cavity control valve 16 and an oil pump 17 on a connecting pipeline of a rear oil storage cavity in the constant-pressure hydraulic cylinder 12 and an oil storage tank 18 are opened, hydraulic oil is filled into the rear oil storage cavity through the oil pump 17, and a piston rod 19 of the constant-pressure hydraulic cylinder 12 extends forwards into a forming section of a screw press forming die assembly; then, the control valve 16 and the oil pump 17 of the rear oil storage cavity are closed, the overflow pressure of the overflow valve 15 is adjusted to be matched with the forming pressure of the screw forming material, and the piston rod 19 is enabled to keep the pressure to be output constantly forwards; then continuously adding materials into an inlet of the screw extruder 4, continuously extruding the materials into the screw press forming die assembly by the screw extruder 4, gradually increasing the pressure of the materials in a forming section of the screw press forming die assembly under the extrusion action of the screw extruder 4, gradually forming accumulation of the materials in the forming section of the screw press forming die assembly and discharging gas; when the pressure of the material in the forming section of the screw press forming die assembly is greater than the constant output pressure of the piston rod 19, the overflow valve 15 is automatically opened to enable the piston rod 19 to move backwards under the extrusion of the material, and the pressure of the material in the forming section of the screw press forming die assembly is always kept constant in the extrusion process; when the material moves to the installation position of the pressure sensor of the screw press forming die assembly, the pressure sensor receives a pressure signal, and the screw extruder 4 is closed; after the material is cooled, firstly, a forming section support plate 7 is pulled to approach to the direction of a hydraulic cylinder support plate 10 through a forming section moving hydraulic cylinder 9, so that the formed section mold 1 and the transition section mold 2 are separated and then the pressed medicine is completely avoided, and the medicine is cut and taken out; and then the forming section support plate 7 is pushed to approach the transition section support plate 6 by the forming section moving hydraulic cylinder 9, so that the outlet end of the transition section mould 2 is in clamping butt joint with the inlet end of the forming section mould 1, and the next time of pressing of the medicine can be carried out.
When needing to clear up, after accomplishing once getting it filled, remove pneumatic cylinder 5 through the changeover portion and promote changeover portion extension board 6 and drive left base 11 and slide to the opposite side of right branch frame 20, make pan feeding section mould 3 and changeover portion mould 2 separate, the workman gets in and out the remaining waste medicine in material section mould 3 and the changeover portion mould 2.
Claims (2)
1. The utility model provides an automatic three-section type screw press forming device who unloads medicine, characterized by: comprises a left base, a right bracket, a screw extruder, a screw forming die and a constant pressure hydraulic cylinder;
the spiral forming die is a three-section structure formed by radially cutting an integral die and respectively comprises a feeding section die matched with the inner shape of a feeding section of the integral die, a transition section die matched with the inner shape of a transition section of the integral die and a forming section die matched with the inner shape of a forming section of the integral die;
the constant-pressure hydraulic cylinder comprises a piston rod, a cylinder body, an overflow valve, a rear oil storage cavity control valve, an oil pump and an oil storage tank;
the head of the piston rod is a top head with the outer diameter matched with the inner diameter of the forming section of the screw press forming die, and the telescopic length of the piston rod is matched with the length of the inner cavity of the forming section die;
the tail part of the piston rod forms two oil storage cavities in the cylinder body, the two oil storage cavities are respectively connected with the oil storage tank through oil return pipelines, a rear oil storage cavity control valve and an oil pump are arranged between the rear oil storage cavity and the oil storage tank, the front oil storage cavity and the rear oil storage cavity are also connected through a constant pressure pipeline provided with an overflow valve, and the overflow pressure of the overflow valve is matched with the forming pressure of the screw forming material;
the constant-pressure hydraulic cylinder is horizontally fixed on the left side of the upper surface of the left base through a hydraulic cylinder support plate, the transition section die is horizontally fixed on the right side of the upper surface of the left base through a transition section support plate, and a pulley is arranged at the bottom of the left base; the feeding section die is horizontally fixed on the left side of the upper surface of the right support through a feeding section support plate, the screw extruder is fixed on the right side of the upper surface of the right support, and the inlet end of the feeding section die is connected with an outlet end flange of the screw extruder; a plurality of guide pillars which are parallel to each other are vertically fixed on the periphery of the hydraulic cylinder support plate, and the front ends of the guide pillars penetrate through guide holes on the periphery of the transition section support plate and are vertically fixed with the feeding section support plate; a forming section support plate fixed with the forming section mould is sleeved on each guide pillar between the hydraulic cylinder support plate and the feeding section support plate through guide holes on the periphery, so that the feeding section mould, the transition section mould and the forming section mould are opposite end to end and have consistent axes, the head of a piston rod of the constant-pressure hydraulic cylinder is inserted into an inner cavity of the forming section mould, and an opening is formed in the side wall of the outlet end of the forming section mould and is connected with a pressure sensor; the hydraulic cylinder support plate is connected with the forming section support plate through the forming section moving hydraulic cylinder, and the transition section support plate is connected with the feeding section support plate through the transition section moving hydraulic cylinder.
2. The automatic medicine unloading three-section type screw forming device as claimed in claim 1, wherein: the connection parts of the feeding section mould, the transition section mould and the forming section mould are respectively provided with butt joint rabbets which are matched with each other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017113307878 | 2017-12-13 | ||
| CN201711330787 | 2017-12-13 |
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| Publication Number | Publication Date |
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| CN109489502A CN109489502A (en) | 2019-03-19 |
| CN109489502B true CN109489502B (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810619661.0A Active CN109489502B (en) | 2017-12-13 | 2018-06-14 | Automatic unload syllogic screw press forming device of medicine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2284376Y (en) * | 1996-10-07 | 1998-06-17 | 山西兴安化学材料厂 | Liquid quantitative charging machine |
| CN2612669Y (en) * | 2003-03-18 | 2004-04-21 | 煤炭科学研究总院***技术研究所 | Powdery emulsion explosive automatic charging machine |
| RU2244700C2 (en) * | 2003-03-03 | 2005-01-20 | Федеральное государственное унитарное предприятие "Научно-исследовательский институт полимерных материалов" | Device for mixing of components of explosives and molding of items out of the mix |
| RU2010134117A (en) * | 2010-08-13 | 2012-02-20 | Федеральное государственное унитарное предприятие "Красноармейский научно-исследовательский институт механизации" (RU) | METHOD FOR FORMING BREAKING CHARGE AND DEVICE FOR ITS IMPLEMENTATION |
| CN104741404A (en) * | 2015-04-10 | 2015-07-01 | 汪会义 | Full-automatic welding nozzle extrusion forming machine |
-
2018
- 2018-06-14 CN CN201810619661.0A patent/CN109489502B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2284376Y (en) * | 1996-10-07 | 1998-06-17 | 山西兴安化学材料厂 | Liquid quantitative charging machine |
| RU2244700C2 (en) * | 2003-03-03 | 2005-01-20 | Федеральное государственное унитарное предприятие "Научно-исследовательский институт полимерных материалов" | Device for mixing of components of explosives and molding of items out of the mix |
| CN2612669Y (en) * | 2003-03-18 | 2004-04-21 | 煤炭科学研究总院***技术研究所 | Powdery emulsion explosive automatic charging machine |
| RU2010134117A (en) * | 2010-08-13 | 2012-02-20 | Федеральное государственное унитарное предприятие "Красноармейский научно-исследовательский институт механизации" (RU) | METHOD FOR FORMING BREAKING CHARGE AND DEVICE FOR ITS IMPLEMENTATION |
| CN104741404A (en) * | 2015-04-10 | 2015-07-01 | 汪会义 | Full-automatic welding nozzle extrusion forming machine |
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| CN109489502A (en) | 2019-03-19 |
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