CN214027157U

CN214027157U - Modified plastic extruder with water-cooling temperature control unit

Info

Publication number: CN214027157U
Application number: CN202023135615.5U
Authority: CN
Inventors: 张大松; 闫东广; 张颖
Original assignee: Jiangsu Suneng New Materials Technology Co ltd
Current assignee: Jiangsu Suneng New Materials Technology Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-08-24
Anticipated expiration: 2030-12-23

Abstract

The utility model relates to a plastic extruder field, concretely relates to modified plastic extruder with water-cooling temperature control unit, including base, feeding cylinder, driving motor and extruding cylinder, the driving motor output is connected with the threaded rod that connects in feeding cylinder and extruding cylinder, makes the plastic material that gets into from feeding cylinder be extruded and melted in the extruding cylinder, the outside of extruding cylinder is equipped with a plurality of water-cooling units along its length direction, the below of extruding cylinder is equipped with delivery pipe and drain pipe; the utility model discloses water-cooling accuse temperature unit has been set up in the outside of extruding cylinder to parallelly connected on water supply pipe, every section can all accomplish fast and supply cold water, and the aperture control water intake speed through the valve is with the speed that the control adjusted the temperature, consequently different required cooling capacities in order to adapt to the extruding cylinder temperature rise of different length sections are different, makes the temperature curve of whole extruding cylinder level and smooth relatively, and fused plastic solution is of high quality, in order to extrude high-quality extrusion strip.

Description

Modified plastic extruder with water-cooling temperature control unit

Technical Field

The utility model relates to a plastic extruder field, concretely relates to modified plastic extruder with water-cooling accuse temperature unit.

Background

The single screw extruder is a common material melt extrusion production device, and is used for processing profiles such as soft polyvinyl chloride, polystyrene, ABS and the like. In the using process of the extruder, powder or particles are pushed and compacted, and are sheared and rubbed strongly under the condition of high-speed rotation of the screw, and extremely high heat is generated under the action of an external heating device to be melted gradually, but if the temperature rise is too high, the material is burnt, the quality of extruded strips is affected, and therefore the outer barrel of the screw needs to be cooled.

In the prior art, cooling water is generally adopted for cooling an extruder, but a cooling section is very long, and the heat generated by each length is different in the process of extruding and melting powder or granules, so that the traditional cooling water cannot accurately regulate the temperature locally, and the temperature regulation speed is low.

Therefore, based on practical experience and professional knowledge which are abundant for many years in the design and manufacture of the products, the inventor of the present application repeatedly tests and adjusts the new problems so as to create the modified plastic extruder with the water-cooling temperature control unit, and can accurately and rapidly adjust the temperature of each section of the extruder so as to continuously improve the grade and the competitiveness of the products.

Disclosure of Invention

The utility model aims to provide a can be accurate and rapid regulate and control the local temperature to the extrusion cylinder, make the temperature curve of each section level and smooth in the extrusion cylinder, consequently provide a modified plastics extruder with water-cooling accuse temperature unit.

In order to achieve the above purpose, the utility model adopts the following scheme: the output end of the driving motor is connected with a threaded rod connected into the feeding barrel and the extruding barrel, so that plastic materials entering from the feeding barrel are extruded and melted in the extruding barrel, a plurality of water cooling units are arranged outside the extruding barrel along the length direction of the extruding barrel, a water supply pipe and a water discharge pipe are arranged below the extruding barrel, the water cooling units are connected on the water supply pipe and the water discharge pipe in parallel, the length of each water cooling unit is 200-300mm, and a detachable protective cover is arranged outside each water cooling unit.

Preferably, the water cooling unit comprises a cooling water channel which is positioned inside the extrusion cylinder and surrounds the periphery of the extrusion cavity, and the cooling water channel is provided with two connecting channels which are respectively connected with the water inlet pipe and the water outlet pipe.

Preferably, the water inlet pipe is connected to a water supply pipe, and a flow valve is arranged on the water inlet pipe.

Preferably, the water outlet pipe is connected to a water outlet pipe, and a temperature sensor is arranged at the upper part of the water outlet pipe.

Preferably, the extrusion cylinder is provided with an upward opening at each water cooling unit, and the cooling water channel bypasses the opening.

Preferably, the protection cover is U-shaped, covers both sides wall and top surface of extruding the section of thick bamboo, and the shutoff opening.

Preferably, the inside heat insulating layer that is equipped with of protection casing, both sides and the top surface of protection casing all are equipped with the handle.

Preferably, the water inlet end of the water supply pipe is positioned on one side of the feed end of the extrusion barrel.

Compared with the prior art, the utility model provides a, have following substantive characteristics and progress:

the utility model discloses water-cooling accuse temperature unit has been set up in the outside of extruding cylinder to parallelly connected on water supply pipe, every section can all accomplish fast and supply cold water, and the aperture control water intake speed through the valve is with the speed that the control adjusted the temperature, consequently different required cooling capacities in order to adapt to the extruding cylinder temperature rise of different length sections are different, makes the temperature curve of whole extruding cylinder level and smooth relatively, and fused plastic solution is of high quality, in order to extrude high-quality extrusion strip.

Drawings

FIG. 1 is a schematic structural diagram of a modified plastic extruder with a water-cooling temperature control unit in an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a water cooling unit according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a water-cooling temperature control system according to an embodiment of the present invention.

Detailed Description

The following detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in figure 1, the utility model provides a following technical scheme, a modified plastics extruder with water-cooling accuse temperature unit, including base 1, a feeding section of thick bamboo 2, driving motor 3 and a barrel 4, the 3 output of driving motor is connected with the threaded rod of connection in a feeding section of thick bamboo 2 and a barrel 4, makes the plastics material that gets into from a feeding section of thick bamboo 2 extruded the melting in a barrel 4.

Referring to fig. 1, a plurality of water cooling units are arranged outside the extrusion cylinder 4 along the length direction of the extrusion cylinder, a water supply pipe 6 and a water discharge pipe 7 are arranged below the extrusion cylinder 4, the water cooling units are connected in parallel to the water supply pipe 6 and the water discharge pipe 7, and the water supply pipe 6 and the water discharge pipe 7 are connected in parallel, so that cold water can be rapidly obtained from each water cooling unit, and therefore, the temperature adjusting device has the capability of locally and rapidly adjusting the temperature, a certain part can be accurately adjusted to a required temperature, and the situation of local supercooling or overheating cannot occur.

In this embodiment, the length of the water cooling unit is 200-300mm, and the water cooling unit with the length section can keep the cooling of cold water controllable and effective.

Referring to fig. 2, the water cooling unit includes a cooling water channel 53 located inside the extrusion cylinder 4 and surrounding the extrusion cavity, the cooling water channel 53 has two connecting channels 54 respectively connected to a water inlet pipe 62 and a water outlet pipe 71, the water inlet pipe 62 supplies cold water to the cooling water channel 53 to take out heat from the extrusion cavity periphery inside the extrusion cylinder 4, so as to lower the temperature of the extrusion cavity periphery at that position, and then the hot water is discharged from the water outlet pipe 71.

In this embodiment, the extrusion cylinder 4 is provided with an upward opening at each water cooling unit, and the cooling water passage 53 bypasses the opening through which the internal melting state can be observed in the fault state or the production state.

Referring to fig. 2, a detachable protective cover 5 is disposed outside the water cooling unit, and the protective cover 5 is U-shaped, covers both side walls and a top surface of the extrusion cylinder 4, and blocks the opening. The protective cover 5 plays a role in thermal insulation and protection. The protective cover 51 is internally provided with a heat insulation layer 52, and the two sides and the top surface of the protective cover are respectively provided with a handle, so that the protective cover 5 can be taken down by workers.

As shown in fig. 1 and 3, the inlet pipe 62 is connected to the water supply pipe 6, and the flow valve 61 is provided on the inlet pipe 62. The water outlet pipe 71 is connected to the water outlet pipe 7, and the upper part of the water outlet pipe 71 is provided with a temperature sensor 72, the temperature of the water cooling unit is monitored according to the temperature of the water flowing out of the water outlet pipe 71, and the flow valve 61 is controlled according to the difference between the temperature and the target temperature, so that the water inflow in the water cooling unit is controlled, namely the cooling rate is controlled.

As shown in fig. 1, the water inlet end of the water supply pipe 6 is located on one side of the feed end of the extrusion cylinder 4, and the feed end of the extrusion cylinder 4 generates a large amount of heat, so that the water pressure of the water inlet end is high, which is beneficial to cooling control.

In combination with above embodiment, the utility model discloses water-cooling accuse temperature unit has been set up in the outside of extruding a section of thick bamboo 4, and parallelly connected on delivery pipe 6 and drain pipe 7, can in time supply water and drainage, the ability of local quick temperature regulation has, temperature sensor 72 monitors the temperature of this water-cooling unit department according to the water temperature that outlet pipe 71 flows, and control flow valve 61 according to the difference between this temperature and the target temperature, make the inflow obtain control in the water-cooling unit, consequently can be accurate with some local adjustment to required temperature, local supercooling or overheated condition can not appear, make the temperature curve of whole extruding a section of thick bamboo 4 level and smooth relatively, the molten plastic solution is of high quality, in order to extrude high-quality extrusion strip.

The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments can be provided in addition to the above embodiments. It should be understood by those skilled in the art that any modifications, equivalent substitutions, improvements and the like that are made within the spirit and principle of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a modified plastics extruder with water-cooling accuse temperature unit, includes base, a feeding section of thick bamboo, driving motor and extrudes a section of thick bamboo, the driving motor output is connected with the threaded rod of connection in a feeding section of thick bamboo and an extrusion section of thick bamboo, makes the plastics material that gets into from a feeding section of thick bamboo extrude the melting in the section of thick bamboo, its characterized in that, the outside of extruding a section of thick bamboo is equipped with a plurality of water-cooling units along its length direction, the below of extruding a section of thick bamboo is equipped with delivery pipe and drain pipe, and a plurality of water-cooling units connect in parallel on delivery pipe and the drain pipe, the length of water-cooling unit is 200-.

2. The modified plastic extruder with the water-cooling temperature control unit as claimed in claim 1, wherein the water-cooling unit comprises a cooling water channel which is arranged inside the extrusion barrel and surrounds the extrusion cavity, and the cooling water channel is provided with two connecting channels which are respectively connected with a water inlet pipe and a water outlet pipe.

3. The modified plastic extruder with water-cooled temperature control unit as claimed in claim 2, wherein the water inlet pipe is connected to a water supply pipe, and a flow valve is provided on the water inlet pipe.

4. The modified plastic extruder with the water-cooling temperature control unit according to claim 3, wherein the water outlet pipe is connected to a water discharge pipe, and a temperature sensor is arranged at the upper part of the water outlet pipe.

5. The modified plastic extruder with water-cooled temperature control unit as claimed in claim 2, wherein said extrusion barrel is provided with an upward opening at each water-cooled unit, and said cooling water channel bypasses said opening.

6. The modified plastic extruder with the water-cooling temperature control unit as claimed in claim 5, wherein the protective cover is U-shaped, covers the two side walls and the top surface of the extrusion barrel, and seals the opening.

7. The modified plastic extruder with the water-cooling temperature control unit as claimed in claim 6, wherein the inside of the protective cover is provided with a heat insulation layer, and both sides and the top surface of the protective cover are provided with handles.

8. The modified plastic extruder with water-cooled temperature control unit as claimed in any one of claims 1-7, wherein the water inlet end of the water supply pipe is located at the side of the feed end of the extrusion barrel.