CN219650505U - Pushing extruder for polytetrafluoroethylene tube - Google Patents
Pushing extruder for polytetrafluoroethylene tube Download PDFInfo
- Publication number
- CN219650505U CN219650505U CN202320698140.5U CN202320698140U CN219650505U CN 219650505 U CN219650505 U CN 219650505U CN 202320698140 U CN202320698140 U CN 202320698140U CN 219650505 U CN219650505 U CN 219650505U
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- CN
- China
- Prior art keywords
- pushing
- extruder
- rod
- polytetrafluoroethylene tube
- charging barrel
- Prior art date
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- -1 polytetrafluoroethylene Polymers 0.000 title claims abstract description 22
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims abstract description 22
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims abstract description 22
- 238000001125 extrusion Methods 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 230000033001 locomotion Effects 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 abstract description 2
- 238000005485 electric heating Methods 0.000 description 5
- 210000001161 mammalian embryo Anatomy 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Abstract
The utility model discloses a pushing extruder for polytetrafluoroethylene tubes, which comprises a bracket, a power mechanism, a moving plate, a pushing rod, a core rod, a charging barrel, a heating mechanism and a die head, wherein the charging barrel is longitudinally fixed on the bracket, the bottom of the charging barrel is connected with the die head through a flange, the heating mechanism is arranged outside the charging barrel, the moving plate is connected with the power mechanism, the moving plate can translate up and down under the driving of the power mechanism, the core rod is longitudinally fixed on the bracket, the lower end of the core rod extends into the charging barrel and is connected with the die head at the bottom end of the charging barrel, a gap is reserved between the core rod and the charging barrel, the pushing rod is sleeved outside the core rod, and the upper end of the pushing rod is fixedly connected with the moving plate. The utility model is to push and extrude from top to bottom, the core rod is fixed, the extrusion molding of the polytetrafluoroethylene tube can be realized only by the downward movement of the pushing rod, and the next filling operation can be conveniently carried out from bottom to top only by disassembling the flange after molding.
Description
Technical Field
The utility model relates to a pushing type extruder, in particular to a pushing type extruder for manufacturing polytetrafluoroethylene tubes.
Background
The extruder is mainly used for extrusion molding of tubular plastics. Screw extruders are the main type of extruder, and rely on the pressure and shear forces generated by the rotation of the screw to enable the materials to be fully plasticized and uniformly mixed and molded through a die. The structure of the screw extruder mainly comprises a transmission part, a feeding device, a charging barrel, a screw, a paying-off device, a straightening device, a preheating device, a cooling device, a traction device and other auxiliary equipment, wherein the screw is a key component of the extruder, the performance of the screw is good or bad, the productivity, plasticizing quality, additive dispersibility, melt temperature, power consumption and the like of one extruder are determined, and the application range and the production efficiency of the extruder can be directly influenced. However, the screw needs to rotate continuously in the running process of the device, the control difficulty of basic characteristic parameters (including diameter, length-diameter ratio, compression ratio, screw pitch, screw groove depth, screw angle, gap between the screw and a charging barrel and the like) is high, the structure is complex, the machine is easy to stop in the operation process, and the maintenance is inconvenient.
Disclosure of Invention
In view of the above problems in the prior art, the present utility model provides a pushing extruder for polytetrafluoroethylene tubes.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a polytetrafluoroethylene tube bulldoze extruder, includes support, power unit, kinematic plate, bulldozes stick, plug, feed cylinder, heating mechanism, die head, the feed cylinder is vertically fixed in on the support, the bottom of feed cylinder passes through flange joint die head, and the feed cylinder sets up outward heating mechanism, the kinematic plate links to each other with power unit, and the kinematic plate can translate from top to bottom under power unit's drive, the plug is vertically fixed in on the support, and its lower extreme stretches into the feed cylinder to link to each other with the die head of feed cylinder bottom, have the clearance between plug and the feed cylinder, bulldoze the stick cover and locate outside the plug, bulldoze the upper end and the kinematic plate fixed connection of stick.
Further, the power mechanism comprises a hydraulic cylinder and a push rod, the cylinder body of the hydraulic cylinder is arranged on the support, at least one hydraulic cylinder is symmetrically arranged on two sides of the pushing rod, and the end part of the push rod is fixedly connected with the moving plate.
Further, the device also comprises a guide rod, wherein the guide rod is fixedly arranged on the bracket, and the moving plate is movably sleeved on the guide rod.
Further, a top plate is fixedly arranged at the upper end of the guide rod, and the upper end of the core rod is fixedly connected with the top plate.
Further, the upper end of the guide rod is also provided with a limit switch.
Further, an annular extrusion space is arranged in the die head, the upper side of the extrusion space is communicated with a gap between the core rod and the charging barrel, and the lower side of the extrusion space is communicated with the outside.
Further, the core rod is connected with the die head through a spiral structure.
Further, a pushing head is arranged at the end part of the pushing rod.
Compared with the prior art, the utility model has the beneficial effects that:
the pushing extruder disclosed by the utility model is used for pushing and extruding from top to bottom, the core rod of the pushing extruder is in a fixed state in the operation process, the extrusion molding of the polytetrafluoroethylene tube can be realized only by the downward movement of the pushing rod, and the next filling operation can be conveniently performed from bottom to top only by disassembling the flange after molding.
Drawings
FIG. 1 is a front view of a pushing extruder of polytetrafluoroethylene tubing;
FIG. 2 is a side view of a pushing extruder of polytetrafluoroethylene tubing;
fig. 3 is a perspective view of a pushing extruder for polytetrafluoroethylene tube.
The marks in the figure: 1-a hydraulic cylinder; 2-ejector rods; 3-a guide rod; 4-a motion plate; 5-limit switch; 6-an electric heating ring; 7-a temperature sensing wire; 8-pushing and pressing bars; 9-pushing the pressure head; 10-core rod; 11-a charging barrel; 12-flanges; 13-die head; 14-a bracket; 15-top plate.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings.
Aiming at the problems of high control difficulty, complex structure, easy shutdown in the operation process and inconvenient maintenance of the existing extruder, the embodiment provides the pushing extruder of the polytetrafluoroethylene tube, which has the advantages of simple structure, easy control and convenient maintenance.
The structure of the pushing extruder is shown in fig. 1-3, and mainly comprises a power control system, a temperature control system, an upper die assembly moving up and down and a lower die assembly fixed, wherein the systems and the assemblies are arranged on a bracket 14, and the bracket 14 specifically comprises a table top and an upright post for supporting the table top.
The lower die assembly comprises a charging barrel 11, the charging barrel 11 is vertically arranged, the upper end of the charging barrel 11 is fixed in the middle of a table top of a support 14, the lower end of the charging barrel 11 is connected with a die head 13 through a flange 12, an annular extrusion space is arranged in the die head 13, the upper side of the extrusion space is communicated with a gap between a core rod 10 and the charging barrel 11, and the lower side of the extrusion space is communicated to an external space. Specifically, the upper end surface of the flange 12 is fixedly connected with the bottom end surface of the barrel 11 in a detachable manner, and the lower end surface of the flange 12 is fixedly connected with the die head 13.
The temperature control system comprises a temperature sensing wire 7 and an electric heating ring 6, wherein the electric heating ring 6 is arranged around the outer wall of the charging barrel 11, and the temperature sensing wire 7 is tightly attached to the outer wall of the charging barrel 11. The temperature sensing wire 7 is used for sensing the temperature of the charging barrel 11, and when the temperature of the charging barrel 11 is lower than a preset value, the electric heating ring 6 heats the charging barrel 11.
The upper die assembly comprises a pushing rod 8, a pushing head 9 is arranged at the lower end of the pushing rod 8, a mandrel 10 penetrates through the pushing rod 8, the mandrel 10 is fixedly arranged along the longitudinal direction, the pushing rod 8 penetrates through the moving plate 4 and the charging barrel 11 from top to bottom, the pushing rod 8 can move up and down relative to the mandrel 10, the upper end of the mandrel 10 is fixed on a support 14, the lower end of the mandrel 10 extends into the bottom of the charging barrel 11 along the charging barrel 11 and is fixed with a die head 13, in order to facilitate disassembly and material embryo adding, in the embodiment, the bottom of the mandrel 10 is connected with the die head 13 in a threaded manner, a gap is reserved between the mandrel 10 and the charging barrel 11, and the pushing head 9 can move up and down in the gap after the pushing rod 8 enters the charging barrel 11.
The power control system comprises a hydraulic cylinder 1, a push rod 2 and a guide rod 3, wherein the cylinder body of the hydraulic cylinder 1 is arranged on the table surface of a support 14 at the periphery of a charging barrel 11, the hydraulic cylinder 1 is preferably symmetrically arranged at the periphery of the charging barrel 11, the end part of the push rod 3 is fixedly connected with a moving plate 4, the moving plate 4 can translate up and down under the driving of the hydraulic cylinder 1, the moving plate 4 can synchronously drive a pushing rod 8 and a pushing head 9 to move up and down, the upper end of the pushing rod 8 is fixedly arranged at the middle part of the moving plate 4, the guide rod 3 is fixedly arranged on the table surface of the support 14, the guide rod 3 is parallel to the push rod 2 and is used for calibrating the motion verticality of the push rod 2, the moving plate 4 is movably sleeved on the guide rod 3, the upper end of the guide rod 3 is fixedly provided with a top plate 15, a core rod 10 in the pushing rod 8 passes through the moving plate 4 and is fixedly arranged at the middle part of the top plate 15, and a limit switch 5 can be further arranged on the guide rod 3 at the lower side of the top plate 15.
In the production process, the flange 12 at the bottom of the charging barrel 11 is disassembled, the material embryo rod after being made is added into an extrusion cavity formed between the core rod 10 and the charging barrel 11 from bottom to top, then the flange 12 is locked again, the electric heating ring 6 on the surface of the charging barrel 11 heats the material embryo rod in the extrusion cavity, and the power control system controls the pushing rod 8 to move downwards to push and extrude the embryo in the extrusion cavity through the die head. The pushing extruder of the polytetrafluoroethylene tube is pushed and extruded from top to bottom, has a simple structure and is convenient to operate, and the manufacturing of the polytetrafluoroethylene tube can be rapidly realized.
The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. The utility model provides a polytetrafluoroethylene tube bulldoze extruder, its characterized in that includes support, power unit, motion board, bulldozes stick, plug, feed cylinder, heating mechanism, die head, the feed cylinder is vertically fixed in on the support, the bottom of feed cylinder passes through flange joint die head, the feed cylinder is outer to be set up heating mechanism, the motion board links to each other with power unit, and the motion board can translate from top to bottom under power unit's drive, the plug is vertically fixed in on the support, and its lower extreme stretches into the feed cylinder to link to each other with the die head of feed cylinder bottom, have the clearance between plug and the feed cylinder, bulldoze the stick cover and locate outside the plug, bulldoze the upper end and the motion board fixed connection of stick.
2. The pushing extruder of polytetrafluoroethylene tube according to claim 1, wherein the power mechanism comprises a hydraulic cylinder and a push rod, the cylinder body of the hydraulic cylinder is arranged on the bracket, at least one hydraulic cylinder is symmetrically arranged on two sides of the pushing rod, and the end part of the push rod is fixedly connected with the moving plate.
3. The pushing extruder of polytetrafluoroethylene tube according to claim 2, further comprising a guide rod fixedly mounted on the support, wherein the moving plate is movably sleeved on the guide rod.
4. A pushing extruder for polytetrafluoroethylene tube according to claim 3, wherein a top plate is fixedly installed at the upper end of the guide rod, and the upper end of the core rod is fixedly connected with the top plate.
5. A pushing extruder for polytetrafluoroethylene tube according to claim 3, wherein the upper end of the guide rod is further provided with a limit switch.
6. The pushing extruder for polytetrafluoroethylene tube according to claim 1, wherein an annular extrusion space is provided in the die head, an upper side of the extrusion space is communicated with a gap between the core rod and the barrel, and a lower side of the extrusion space is communicated with the outside.
7. The pushing extruder of polytetrafluoroethylene tube according to claim 1 wherein the mandrel is connected to the die by a helical structure.
8. The pushing extruder for polytetrafluoroethylene tube according to claim 1, wherein the pushing rod is provided with a pushing head at an end portion thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320698140.5U CN219650505U (en) | 2023-04-03 | 2023-04-03 | Pushing extruder for polytetrafluoroethylene tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320698140.5U CN219650505U (en) | 2023-04-03 | 2023-04-03 | Pushing extruder for polytetrafluoroethylene tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219650505U true CN219650505U (en) | 2023-09-08 |
Family
ID=87881150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320698140.5U Active CN219650505U (en) | 2023-04-03 | 2023-04-03 | Pushing extruder for polytetrafluoroethylene tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219650505U (en) |
-
2023
- 2023-04-03 CN CN202320698140.5U patent/CN219650505U/en active Active
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