CN219926892U - High-speed extrusion mechanism of constant-pressure constant-flow blank pipe of rotary bottle blowing machine - Google Patents
High-speed extrusion mechanism of constant-pressure constant-flow blank pipe of rotary bottle blowing machine Download PDFInfo
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- CN219926892U CN219926892U CN202321293277.9U CN202321293277U CN219926892U CN 219926892 U CN219926892 U CN 219926892U CN 202321293277 U CN202321293277 U CN 202321293277U CN 219926892 U CN219926892 U CN 219926892U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 238000007664 blowing Methods 0.000 title claims abstract description 17
- 238000001125 extrusion Methods 0.000 title claims abstract description 15
- 239000004033 plastic Substances 0.000 claims abstract description 34
- 229920003023 plastic Polymers 0.000 claims abstract description 34
- 210000001161 mammalian embryo Anatomy 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims 1
- 239000012943 hotmelt Substances 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A rotary bottle blowing machine constant voltage constant current base pipe high-speed extrusion mechanism which characterized in that: the device comprises a screw plastic extruder and a constant-pressure constant-flow pump connected to the discharge end of the screw plastic extruder, wherein the outlet end of the constant-pressure constant-flow pump is connected with a bottle embryo tube extruder. The beneficial effects of the utility model are as follows: 1. simple structure, low production cost and market competitiveness improvement. 2. A constant-pressure constant-flow pump is arranged between a traditional screw plastic extruder and a bottle blank pipe extruder, and gears in the constant-pressure constant-flow pump are utilized for secondary buffering and proportioning, so that the speed of hot melt plastic extruded into the bottle blank pipe extruder is uniform and stable, the feeding requirement of a rotary bottle blowing machine is met, and the stability of the quality of a final finished product is ensured.
Description
Technical Field
The utility model relates to a fitting of a blow molding machine, in particular to a constant-pressure constant-flow blank pipe high-speed extrusion mechanism of a rotary bottle blowing machine.
Background
Injection molding machines are also known as injection molding machines or injection molding machines. It is a main forming equipment for making thermoplastic plastics or thermosetting plastics into various shaped plastic products by using plastic forming mould. The device is divided into vertical type, horizontal type and full-electric type. The injection molding machine heats the plastic, applies high pressure to the molten plastic, and injects the molten plastic to fill the mold cavity. Function of injection system: the injection system is one of the most main components of the injection machine, and is generally in 3 main forms of plunger type, screw type and screw pre-plastic plunger injection type. The most widely used is the screw type. The injection molding machine has the function that after a certain amount of plastic is heated and plasticized in a specified time in one cycle of the injection molding machine, the molten plastic is injected into a mold cavity through a screw under a certain pressure and speed. After the injection is completed, the molten material injected into the mold cavity is kept in a fixed shape.
At the moment, in the existing plunger type, screw type and screw pre-plastic plunger injection type equipment, the extruded hot melt plastic is directly connected with a die, but the feeding speed of the existing extrusion mechanism is not stable, and the feeding and hanging type bottle embryo discharging form can meet the use requirements. However, in the rotary bottle blowing machine, the bottle blank is discharged in a lifting manner, the discharge mode leads to extremely high requirement on the stability of the discharge speed of the bottle blank, otherwise, the bottle blank collapses and deforms easily, and the like, and the high-speed feeding requirement of the rotary bottle blowing machine cannot be met, so that further improvement is necessary.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides the high-speed extrusion mechanism of the constant-pressure constant-current blank tube of the rotary bottle blowing machine, which has the advantages of simple structure, convenient use, stable discharge speed and capability of adjusting the discharge speed in a large range.
The utility model aims at realizing the following modes: a rotary bottle blowing machine constant voltage constant current base pipe high-speed extrusion mechanism which characterized in that: the device comprises a screw plastic extruder and a constant-pressure constant-flow pump connected to the discharge end of the screw plastic extruder, wherein the outlet end of the constant-pressure constant-flow pump is connected with a bottle embryo tube extruder;
the constant-pressure constant-flow pump comprises a main pump body, wherein a feeding cavity penetrating through the left end face and the right end face of the main pump body, a first gear cavity and a second gear cavity penetrating through the upper end face and the lower end face of the main pump body are arranged on the main pump body, and the first gear cavity and the second gear cavity are arranged in an intersecting mode and are communicated with the feeding cavity;
the first gear cavity and the second gear cavity are respectively provided with a first gear and a second gear, the first gear and the second gear are meshed with each other, and an input shaft is arranged on the first gear or the second gear and is connected with the power mechanism and drives the power mechanism to rotate;
end surfaces of the first gear cavity and the second gear cavity are covered with end covers, and the end covers seal the end surfaces of the first gear cavity and the second gear cavity;
the inlet end of the feeding cavity is connected with the screw plastic extruder; the outlet end of the feeding cavity is connected with a bottle embryo tube extruder.
Sliding bearings are arranged at the front end face and the rear end face of the first gear cavity and the second gear cavity, and the front end and the rear end of the first gear and the rear end of the second gear are rotatably arranged in the first gear or the second gear through the sliding bearings.
The end face of the sliding bearing is provided with a limiting convex ring, correspondingly, the end faces of the first gear cavity and the second gear cavity are provided with step holes, and the limiting convex ring is clamped in the step holes and is positioned and installed.
The cross sections of the first gear and the second gear are arranged in an 8 shape.
The beneficial effects of the utility model are as follows: 1. simple structure, low production cost and market competitiveness improvement. 2. A constant-pressure constant-flow pump is arranged between a traditional screw plastic extruder and a bottle blank pipe extruder, and gears in the constant-pressure constant-flow pump are utilized for secondary buffering and proportioning, so that the speed of hot melt plastic extruded into the bottle blank pipe extruder is uniform and stable, the feeding requirement of a rotary bottle blowing machine is met, and the stability of the quality of a final finished product is ensured.
Drawings
FIG. 1 is an assembly view of the structure of the present utility model with a blowing frame and a thermoplastic extruder.
Fig. 2 is an enlarged view of the structure of the portion a of fig. 1 in the present utility model.
FIG. 3 is a schematic diagram of the structure of the present utility model.
Fig. 4 and 5 are structural assembly views of the present utility model.
Fig. 6 is a cross-sectional view of the structure of the present utility model.
Detailed Description
The utility model is described in more detail below with reference to the accompanying drawings. A rotary bottle blowing machine constant voltage constant current base pipe high-speed extrusion mechanism which characterized in that: the device comprises a screw plastic extruder 1 and a constant-pressure constant-flow pump connected to the discharge end of the screw plastic extruder, wherein the outlet end of the constant-pressure constant-flow pump is connected with a bottle embryo tube extruder 2;
the constant-pressure constant-flow pump comprises a main pump body 3, wherein a feeding cavity 4 penetrating through the left end face and the right end face of the main pump body 3, a first gear cavity 5 and a second gear cavity 6 penetrating through the upper end face and the lower end face of the main pump body are arranged on the main pump body 3, and the first gear cavity 5 and the second gear cavity 6 are intersected and communicated with the feeding cavity 4;
the first gear cavity 5 and the second gear cavity 6 are respectively provided with a first gear 7 and a second gear 8, the first gear 7 and the second gear 8 are meshed with each other, and the first gear 7 or the second gear 8 is provided with an input shaft 9 which is connected with the power mechanism and drives the power mechanism to rotate;
end surfaces of the first gear cavity 5 and the second gear cavity 6 are covered with end covers 10, and the end covers 10 seal the end surfaces of the first gear cavity 5 and the second gear cavity 6;
the inlet end of the feeding cavity 4 is connected with the screw plastic extruder 1; the outlet end of the feeding cavity 4 is connected with the bottle embryo tube extruder 2.
Sliding bearings 11 are mounted on the front end face and the rear end face of the first gear cavity 5 and the second gear cavity 6, and the front end and the rear end of the first gear 7 and the rear end of the second gear 8 are rotatably mounted in the first gear 7 or the second gear 8 through the sliding bearings 11.
The end face of the sliding bearing 11 is provided with a limiting convex ring 12, correspondingly, the end faces of the first gear cavity 5 and the second gear cavity 6 are provided with step holes 13, and the limiting convex ring 12 is clamped in the step holes 13 and positioned and installed.
The cross sections of the first gear 7 and the second gear 8 are arranged in an 8 shape.
Working principle: the structure in the scheme shown in figures 1 and 2 comprises a screw plastic extruder 1 and a constant-pressure constant-flow pump connected to the discharge end of the screw plastic extruder, wherein the outlet end of the constant-pressure constant-flow pump is connected with a bottle embryo tube extruder 2; the constant-pressure constant-flow pump comprises a main pump body 3, wherein a feeding cavity 4 penetrating through the left end face and the right end face of the main pump body 3, a first gear cavity 5 and a second gear cavity 6 penetrating through the upper end face and the lower end face of the main pump body are arranged on the main pump body 3, and the first gear cavity 5 and the second gear cavity 6 are intersected and communicated with the feeding cavity 4;
the first gear cavity 5 and the second gear cavity 6 are respectively provided with a first gear 7 and a second gear 8, the first gear 7 and the second gear 8 are meshed with each other, and the first gear 7 or the second gear 8 is provided with an input shaft 9 which is connected with the power mechanism and drives the power mechanism to rotate. When the power mechanism drives the first gear 7 or the second gear 8 to rotate, the meshing line of the gears is utilized to separate the left cavity and the right cavity of the feeding cavity to form vacuum, and plastics in a hot melting state are extruded from the feeding end of the feeding cavity to the discharging end of the feeding cavity under the action of atmospheric pressure and the pressure of the external screw plastic extruder 1. Because the capacity is consistent when the gears are meshed, the flow and the pressure of the plastic fed into the bottle blank pipe extruder can be accurately controlled by only controlling the rotating speed of the gears, so that the functions of balancing, stabilizing and regulating the extrusion pressure of the screw plastic extruder 1 are achieved, and finally the stability of the plastic fed into the bottle blank pipe extruder is ensured.
When the flow and the pressure are required to be regulated in the use process, the rotating speed of the driving mechanism is only required to be changed, and the real-time regulation of the feeding parameters can be realized by matching with a corresponding electric control system.
Compared with the traditional feeding mode adopting a screw plastic extruder, in the scheme, a constant-pressure constant-flow pump is connected in series between the screw plastic extruder and the bottle embryo tube extruder 2. Plays a role in stabilizing and adjusting the feeding speed, pressure and flow so as to meet the requirement of the rotary bottle blowing machine on the feeding stability of bottle blanks.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (4)
1. A rotary bottle blowing machine constant voltage constant current base pipe high-speed extrusion mechanism which characterized in that: the device comprises a screw plastic extruder (1) and a constant-pressure constant-flow pump connected to the discharge end of the screw plastic extruder, wherein the outlet end of the constant-pressure constant-flow pump is connected with a bottle embryo tube extruder (2);
the constant-pressure constant-flow pump comprises a main pump body (3), wherein a feeding cavity (4) penetrating through the left end face and the right end face of the main pump body is arranged on the main pump body (3), a first gear cavity (5) and a second gear cavity (6) penetrating through the upper end face and the lower end face of the main pump body are intersected, and the first gear cavity (5) and the second gear cavity (6) are intersected and communicated with the feeding cavity (4);
the first gear cavity (5) and the second gear cavity (6) are respectively provided with a first gear (7) and a second gear (8), the first gear (7) and the second gear (8) are meshed with each other, and the first gear (7) or the second gear (8) is provided with an input shaft (9) which is connected with the power mechanism and drives the power mechanism to rotate;
end surfaces of the first gear cavity (5) and the second gear cavity (6) are covered with end covers (10), and the end covers (10) seal the end surfaces of the first gear cavity (5) and the second gear cavity (6);
the inlet end of the feeding cavity (4) is connected with the screw plastic extruder (1); the outlet end of the feeding cavity (4) is connected with the bottle embryo tube extruder (2).
2. The high-speed extrusion mechanism of a constant-pressure constant-flow blank pipe of a rotary bottle blowing machine according to claim 1, wherein the high-speed extrusion mechanism is characterized in that: sliding bearings (11) are arranged at the front end face and the rear end face of the first gear cavity (5) and the second gear cavity (6), and the front end and the rear end of the first gear (7) and the rear end of the second gear (8) are rotatably arranged in the first gear (7) or the second gear (8) through the sliding bearings (11).
3. The high-speed extrusion mechanism of constant-pressure constant-flow blank pipe of rotary bottle blowing machine according to claim 2, wherein: the end face of the sliding bearing (11) is provided with a limiting convex ring (12), correspondingly, the end faces of the first gear cavity (5) and the second gear cavity (6) are provided with step holes (13), and the limiting convex ring (12) is clamped in the step holes (13) for positioning and installation.
4. The high-speed extrusion mechanism of a constant-pressure constant-flow blank pipe of a rotary bottle blowing machine according to claim 1, wherein the high-speed extrusion mechanism is characterized in that: the cross sections of the first gear (7) and the second gear (8) are in an 8 shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321293277.9U CN219926892U (en) | 2023-05-25 | 2023-05-25 | High-speed extrusion mechanism of constant-pressure constant-flow blank pipe of rotary bottle blowing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321293277.9U CN219926892U (en) | 2023-05-25 | 2023-05-25 | High-speed extrusion mechanism of constant-pressure constant-flow blank pipe of rotary bottle blowing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219926892U true CN219926892U (en) | 2023-10-31 |
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ID=88486694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321293277.9U Active CN219926892U (en) | 2023-05-25 | 2023-05-25 | High-speed extrusion mechanism of constant-pressure constant-flow blank pipe of rotary bottle blowing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219926892U (en) |
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2023
- 2023-05-25 CN CN202321293277.9U patent/CN219926892U/en active Active
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