CN215969999U - Three-dimensional heating type plastic extruder head - Google Patents
Three-dimensional heating type plastic extruder head Download PDFInfo
- Publication number
- CN215969999U CN215969999U CN202121935733.6U CN202121935733U CN215969999U CN 215969999 U CN215969999 U CN 215969999U CN 202121935733 U CN202121935733 U CN 202121935733U CN 215969999 U CN215969999 U CN 215969999U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- inner sleeve
- heating
- electromagnetic
- extruder head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to the technical field of plastic extruders, and provides a three-dimensional heating type plastic extruder head which comprises an inner sleeve and an outer sleeve, wherein the inner sleeve is arranged in the outer sleeve, and an electromagnetic heating mechanism is arranged between the inner sleeve and the outer sleeve; the inner sleeve is made of magnetic conductive material. This scheme adopts the electromagnetic wave heating mode to alternating current passes through electromagnetic heating mechanism and produces alternating magnetic field, and the endotheca of magnetic conductivity material preparation is arranged in wherein and is cut the alternating magnetic line of force, thereby produces the vortex in the endotheca, and the inside atom of vortex is random motion at a high speed, through atom collision each other, friction and produce heat energy, thereby plays the effect of heating plastics, can improve heating efficiency, reduces energy loss, the energy can be saved. In addition, the plastic can be melted completely to avoid the solid particles in the extruded molten state, thereby improving the fluidity and the fusion, preventing the local aggregation and blockage, improving the production efficiency, and improving the quality of the injection molding product.
Description
Technical Field
The utility model relates to the technical field of plastic extruders, in particular to a three-dimensional heating type plastic extruder head.
Background
The plastic extruder is a process device for processing plastic products, and comprises an extrusion system, a transmission system and a heating system, wherein the extrusion system comprises a screw, a machine barrel, a hopper, a machine head and a mold, and plastic is plasticized into uniform melt by the extrusion system and is continuously extruded by the screw under the pressure established in the process; the transmission system is used for driving the screw, supplying the torque and the rotating speed required by the screw in the extrusion process, and comprises a motor, a reducer, a bearing and the like; the heating system is used for ensuring that the process temperature is reached, and heating and melting the plastic particles in the cylinder. The plastic extruder can be matched with various plastic forming auxiliary machines, such as pipes, films, rods, monofilaments, flat wires, packing belts, extrusion nets, plates (sheets), profiles, granulation, cable coating and the like, to form various plastic extrusion forming production lines and produce various plastic products.
At present, a machine head adopted by a plastic extruder comprises an alloy steel inner sleeve and a carbon steel outer sleeve, a forming die is arranged in the machine head, and the machine head has the functions of converting plastic melt in rotary motion into parallel linear motion, uniformly and stably guiding the plastic melt into a die sleeve and endowing the plastic with necessary forming pressure. The plastic is plasticized and compacted in the machine barrel, flows into a machine head forming die through a porous filter plate along a certain flow passage through a machine head neck, and is properly matched with a die core die sleeve to form an annular gap with a continuously reduced section, so that the plastic melt forms a continuous and compact tubular coating layer around the core wire. In order to ensure that a plastic flow channel in the machine head is reasonable and eliminate dead angles for storing plastic, a shunt sleeve is often arranged, and a grading ring is also arranged for eliminating pressure fluctuation during plastic extrusion. The machine head is also provided with a mould correcting and adjusting device which is convenient for adjusting and correcting the concentricity of the mould core and the mould sleeve.
In the actual heating process, due to the low thermal efficiency, on one hand, the energy consumption is increased, and on the other hand, the plastic is often not completely melted to a molten state, so that the extruded molten state contains solid particles, the fluidity and the fusion are reduced, local aggregation and blockage can be formed, the production efficiency is influenced, and the quality of injection molding products is also influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a three-dimensional heating type plastic extruder head which comprises an inner sleeve and an outer sleeve, wherein the inner sleeve is arranged in the outer sleeve, an electromagnetic heating mechanism is arranged between the inner sleeve and the outer sleeve, and the inner sleeve is made of a magnetic conductivity material.
Optionally, the electromagnetic heating mechanism includes a solenoid surrounding the inner sleeve, and the solenoid includes an electromagnetic induction coil and a coil sleeve; the coil sleeve is tubular, and the electromagnetic induction coil is arranged in the coil sleeve; the electromagnetic induction coil is electrically connected with a power supply.
Optionally, the inner sleeve is conical, and the electromagnetic tube is arranged around the inner sleeve in a conical spring shape.
Optionally, the inner surface of endotheca sets up the electric heating layer, the electric heating layer includes the carbon fiber heating net, the carbon fiber heating net is connected with the power electricity.
Optionally, the inlet end of the inner sleeve is provided with a filter screen, a semi-annular opening for installing the filter screen is arranged at the position of the filter screen, the semi-annular opening is connected with a semi-annular sleeve matched with the semi-annular opening through a pin shaft, the semi-annular sleeve is opened or plugged through rotation of one end connected with the pin shaft, and the other end of the semi-annular sleeve is tightly connected with the outer sleeve through a bolt during plugging.
Optionally, a die sleeve is arranged at the outlet end of the inner sleeve, a medium channel is arranged in the wall of the die sleeve, the medium channel is connected with a fluid pump through a circulating pipe, the fluid pump is connected with a heat exchanger through a pipeline, and the heat exchanger is installed at the feed inlet.
Optionally, the electromagnetic heating mechanism is provided with a heating control circuit, and the heating control circuit includes a PLC controller, a temperature sensor, an air circuit breaker Q1, a relay K1, and a protector P1; the temperature sensor is arranged on the inner side of the inner sleeve;
the electromagnetic heating mechanism adopts an electric heater which is connected with a power supply through an air circuit breaker Q1 and a relay K1; the air circuit breaker Q1 is grounded through a protector P1;
the temperature sensor is connected with input X1 and input X2 of PLC controller, relay K1's coil one end is connected with PLC controller's output Y1, relay K1's coil other end and DC power supply negative pole are connected.
Optionally, the inner surface of the outer sleeve is provided with a heat insulation layer, and the heat insulation layer is made of asbestos, vermiculite, alumina or refractory fiber materials.
Optionally, an insulating layer is disposed on an inner surface of the outer sleeve, and the insulating layer is made of a ceramic material.
Optionally, a flange is arranged at the inlet end of the outer sleeve, and the machine head is connected with the machine body through the flange; the outer sleeve is made of steel.
The three-dimensional heating type plastic extruder head comprises an inner sleeve and an outer sleeve, wherein the inner sleeve is arranged in the outer sleeve, an electromagnetic heating mechanism is arranged between the inner sleeve and the outer sleeve, and the inner sleeve is made of a magnetic conductive material; this scheme adopts the electromagnetic wave heating mode to alternating current passes through electromagnetic heating mechanism and produces alternating magnetic field, and the endotheca of magnetic conductivity material preparation is arranged in wherein and is cut the alternating magnetic line of force, thereby produces the vortex in the endotheca, and the inside atom of vortex is random motion at a high speed, through atom collision each other, friction and produce heat energy, thereby plays the effect of heating plastics, can improve heating efficiency, reduces energy loss, the energy can be saved. In addition, the plastic can be melted completely to avoid the solid particles in the extruded molten state, thereby improving the fluidity and the fusion, preventing the local aggregation and blockage, improving the production efficiency, and improving the quality of the injection molding product.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic view of an embodiment of a three-dimensional heated plastic extruder head according to the present invention;
FIG. 2 is a schematic view of a second embodiment of a three-dimensional heated plastic extruder head according to the present invention;
FIG. 3 is a schematic view of a filter mounting arrangement for an embodiment of a three-dimensional heated plastic extruder head of the present invention;
FIG. 4 is a schematic diagram of a die sleeve heat recovery structure of an embodiment of a three-dimensional heated plastic extruder head according to the present invention;
fig. 5 is a schematic diagram of a heating control circuit adopted in an embodiment of the three-dimensional heating type plastic extruder head of the utility model.
In the figure: 1-inner sleeve, 2-outer sleeve, 3-electromagnetic heating mechanism, 4-electric heating layer, 5-filter screen, 6-pin shaft 6, 7-semi-ring sleeve, 8-die sleeve, 9-medium channel, 10-fluid pump, 11-heat exchanger, 12-feed inlet, 13-heat preservation layer.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1, an embodiment of the present invention provides a three-dimensional heating type plastic extruder head, including an inner sleeve 1 and an outer sleeve 2, where the inner sleeve 1 is disposed in the outer sleeve 2, an electromagnetic heating mechanism 3 is disposed between the inner sleeve 1 and the outer sleeve 2, and the inner sleeve 1 is made of a magnetic conductive material.
The working principle and the beneficial effects of the technical scheme are as follows: the scheme is characterized in that an inner sleeve and an outer sleeve are arranged, the inner sleeve is arranged in the outer sleeve, an electromagnetic heating mechanism is arranged between the inner sleeve and the outer sleeve, and the inner sleeve is made of a magnetic conductive material; the scheme adopts an electromagnetic wave heating mode, alternating current passes through an electromagnetic heating mechanism to generate an alternating magnetic field, an inner sleeve made of magnetic conductive material is arranged in the electromagnetic heating mechanism to cut alternating magnetic lines, so that eddy current is generated inside the inner sleeve, atoms inside the eddy current move randomly at high speed, and heat energy is generated by mutual collision and friction of the atoms, so that the effect of heating plastics is achieved, the heating efficiency can be improved, the energy loss is reduced, and the energy is saved; in addition, the plastic can be melted completely to avoid the solid particles in the extruded molten state, thereby improving the fluidity and the fusion, preventing the local aggregation and blockage, improving the production efficiency, and improving the quality of the injection molding product.
In one embodiment, the electromagnetic heating mechanism 3 comprises a solenoid surrounding an inner sleeve, the solenoid comprising an electromagnetic induction coil and a coil sleeve; the coil sleeve is tubular, and the electromagnetic induction coil is arranged in the coil sleeve; the electromagnetic induction coil is electrically connected with a power supply.
The working principle and the beneficial effects of the technical scheme are as follows: the electromagnetic heating mechanism adopts an electromagnetic tube surrounding an inner sleeve, and the electromagnetic tube comprises an electromagnetic induction coil and a coil sleeve; the coil sleeve is tubular, and the electromagnetic induction coil is arranged in the coil sleeve; the electromagnetic induction coil is electrically connected with a power supply; the electromagnetic induction coil is used for generating an alternating magnetic field, and the coil sleeve can protect the electromagnetic induction coil so as to reduce faults, prolong the service life and reduce the maintenance cost.
In one embodiment, the inner sleeve 1 is conical, and the electromagnetic tube is arranged around the inner sleeve in a conical spring shape.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the inner sleeve is arranged to be conical, the end with the larger diameter is an inlet end, the end with the smaller diameter is an outlet end, and by reducing the cross section, extrusion force can be increased, compactness can be improved, and defects such as bubbles can be prevented; the electromagnetic tube is in a conical spring shape and surrounds the inner sleeve to adapt to the structure of the inner sleeve, and the compactness and the conformity of the structure are enhanced.
In one embodiment, the inner surface of the inner sleeve 1 is provided with an electric heating layer 4, and the electric heating layer 4 comprises a carbon fiber heating net which is electrically connected with a power supply.
The working principle and the beneficial effects of the technical scheme are as follows: this scheme sets up the electrical heating layer through the internal surface at the endotheca, and the built-in carbon fiber heating net of electrical heating layer, carbon fiber heating net are connected with the power electricity, and the carbon fiber heating net of this electrical heating layer can be used to heat the compensation, perhaps uses when electromagnetic heating mechanism loses efficacy because of the accident to guarantee process temperature improves product quality.
In one embodiment, as shown in fig. 3, the inlet end of the inner sleeve 1 is provided with a filter screen 5, the filter screen 5 is provided with a semi-annular opening for installing the filter screen 5, the semi-annular opening is connected with a semi-annular sleeve 7 matched with the semi-annular opening through a pin 6, the semi-annular sleeve 7 opens or blocks the semi-annular opening through rotating at one end connected with the pin 6, and the other end of the semi-annular sleeve 7 is fixedly connected with the outer sleeve 2 through a bolt when blocking. The dotted line in the figure is an illustration of the position of the half collar rotated to an angle.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the filter screen is arranged at the inlet end of the inner sleeve, so that an object with a large size can be prevented from entering the inner sleeve to be blocked, the size of plastic particles entering the inner sleeve can be preliminarily screened, the particles are limited within a certain range, the molten state can be conveniently and rapidly heated, and the heating uniformity is improved; the semi-annular opening for installing the filter screen is arranged at the position of the filter screen, the semi-annular opening is connected with the semi-annular sleeve matched with the semi-annular opening through the pin shaft, the semi-annular sleeve is opened by rotating, the filter screen can be conveniently taken out or inserted, and therefore the filter screen can be taken out, cleaned or replaced in use, and the effect of the filter screen is guaranteed; the scheme has simple structure and convenient use; the matching of the semi-ring sleeve and the semi-ring opening can be provided with a sealing cushion layer to enhance the sealing effect.
In one embodiment, as shown in fig. 4, the outlet end of the inner sleeve 1 is provided with a die sleeve 8, a medium channel 9 is arranged in the wall of the die sleeve 8, the medium channel 9 is connected with a fluid pump 10 through a circulating pipe, the fluid pump 10 is connected with a heat exchanger 11 through a pipe, and the heat exchanger 11 is arranged at the feed inlet 12.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the die sleeve is arranged at the outlet end of the inner sleeve, the medium channel is arranged in the wall of the die sleeve and is connected with the fluid pump through the circulating pipe, the fluid pump is connected with the heat exchanger through the pipeline, and the heat exchanger is arranged at the feed inlet; the medium is filled into the circulating pipeline system, the fluid pump drives the medium to flow, the extruded plastic is cooled and molded in the die sleeve, the heat of the extruded plastic is recovered and is conveyed to the heat exchanger arranged at the feed inlet through flowing to exchange heat with the feed of the feed inlet, and the feed is preheated, so that the subsequent temperature rise of the feed can be accelerated, the time for reaching the process temperature is shortened, and the production efficiency is improved; on the other hand, energy can be saved through heat recycling.
In one embodiment, as shown in fig. 5, the electromagnetic heating mechanism is provided with a heating control circuit including a PLC controller, a temperature sensor, an air circuit breaker Q1, a relay K1, and a protector P1; the temperature sensor is arranged on the inner side of the inner sleeve;
the electromagnetic heating mechanism adopts an electric heater which is connected with a power supply through an air circuit breaker Q1 and a relay K1; the air circuit breaker Q1 is grounded through a protector P1;
the temperature sensor is connected with input X1 and input X2 of PLC controller, relay K1's coil one end is connected with PLC controller's output Y1, relay K1's coil other end and DC power supply negative pole are connected.
The working principle and the beneficial effects of the technical scheme are as follows: the power supply of the PLC controller in the scheme adopts DC24V, the cathode of the DC power supply is the cathode of a 24V DC power supply, when the internal temperature of the inner sleeve measured by the temperature sensor is lower than the set process temperature, the temperature sensor transmits a 24V positive voltage signal to the input end X1 of the PLC controller, when the internal temperature of the inner sleeve measured by the temperature sensor is equal to the set process temperature, the temperature sensor transmits a 24V positive voltage signal to the input end X2 of the PLC, and the electric heater is started to heat when the internal temperature of the inner sleeve is lower than the set process temperature through the logic program control of the PLC controller; when the internal temperature reaches the process temperature, the electric heater is turned off; the circulation is repeated in such a way, so that the constant internal temperature of the inner sleeve is ensured; the air circuit breaker Q1 with a leakage current protection device is used to protect the heating control circuit from overcurrent and leakage current faults due to various possible causes. One end of an air circuit breaker Q1 can be connected with a live wire end L of an alternating current 220V power supply, the other end of the air circuit breaker Q1 is connected with one end of a pair of normally open contacts of a relay K1, the other end of the normally open contact of the relay K1 is connected with one end of an electric heater, and the other end of the electric heater is connected with a zero line end N of the alternating current 220V power supply; the protector P1 can be an arrester or an overvoltage protector for overvoltage protection of the electric heating loop, one end of the protector P1 is connected with the metal casing of the equipment (the metal casing is grounded), and the other end of the protector P1 is connected with a fire wire end L of the 220V alternating current power supply. By using the air circuit breaker Q1 with the leakage current protection device, the leakage current protection device in the air circuit breaker Q1 acts to disconnect the circuit of the air circuit breaker Q1 and protect personal safety in case that a worker touches a charged part in normal work; meanwhile, when the circuit overcurrent caused by various possible faults damages the insulating material and generates leakage current, the overcurrent protection device of the air circuit breaker Q1 acts to automatically disconnect the circuit of the air circuit breaker Q1, so that equipment and personnel are protected; the protector P1 adopts a lightning arrester or an overvoltage protector, so that the burning out of electric equipment and the occurrence of electric leakage accidents caused by the overvoltage of a power supply can be prevented, and the equipment and the personal safety are protected; the PLC controller is used, and control integration can be formed, so that the whole circuit is fewer and simple in devices; the whole circuit is simple, and the fault point is reduced to the necessary minimum limit, so that the circuit can realize the use purpose more reliably.
In one embodiment, as shown in fig. 2, the inner surface of the outer jacket 2 is provided with an insulating layer 13, which may be made of asbestos, vermiculite, alumina or refractory fiber material.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the heat preservation layer is arranged on the inner surface of the outer sleeve, and the inner sleeve and the electromagnetic heating mechanism are insulated from the outside through the heat preservation layer, so that heat waste can be reduced, and the process temperature can be kept; the heat-insulating layer is arranged on the inner surface of the outer sleeve, and is possibly bonded by glue, so that the heat-insulating layer can be prevented from being damaged due to the protection of the outer sleeve; the heat-insulating layer is made of asbestos, vermiculite, alumina or refractory fiber materials which can resist high temperature and prevent the heat-insulating layer from being damaged and losing efficacy due to the high temperature.
In one embodiment, the inner surface of the outer sleeve 2 is provided with an insulating layer which is made of ceramic material; a flange is arranged at the inlet end of the outer sleeve 2, and the machine head is connected with the machine body through the flange; the outer sleeve is made of steel.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the insulating layer is arranged on the inner surface of the outer sleeve, so that the insulating isolation between the electromagnetic heating mechanism and the outer sleeve can be further ensured, potential safety hazards caused by electric leakage can be prevented, the insulating layer is made of ceramic materials and can resist high temperature, and the insulating failure caused by high temperature can be prevented; the machine head and the machine body are connected through the flange, so that the machine head is convenient to disassemble, assemble and replace, the time for producing adverse effects caused by machine head faults can be shortened during use, and the production efficiency is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A three-dimensional heating type plastic extruder head is characterized by comprising an inner sleeve and an outer sleeve, wherein the inner sleeve is arranged in the outer sleeve, an electromagnetic heating mechanism is arranged between the inner sleeve and the outer sleeve, and the inner sleeve is made of a magnetic conductivity material;
the electromagnetic heating mechanism comprises an electromagnetic tube surrounding the inner sleeve, and the electromagnetic tube comprises an electromagnetic induction coil and a coil sleeve; the coil sleeve is tubular, and the electromagnetic induction coil is arranged in the coil sleeve; the electromagnetic induction coil is electrically connected with a power supply;
the inner sleeve is conical, and the electromagnetic tube is arranged around the inner sleeve in a conical spring shape.
2. The three-dimensional heating type plastic extruder head according to claim 1, wherein an electric heating layer is arranged on the inner surface of the inner sleeve, the electric heating layer comprises a carbon fiber heating net, and the carbon fiber heating net is electrically connected with a power supply.
3. The three-dimensional heating type plastic extruder head according to claim 1, wherein the inlet end of the inner sleeve is provided with a filter screen, the filter screen is provided with a semi-annular opening for installing the filter screen, the semi-annular opening is connected with a semi-annular sleeve matched with the semi-annular opening through a pin shaft, the semi-annular sleeve opens or blocks the semi-annular opening through rotating one end connected with the pin shaft, and the other end of the semi-annular sleeve is fixedly connected with the outer sleeve through a bolt during blocking.
4. The three-dimensional heating type plastic extruder head according to claim 1, wherein the outlet end of the inner sleeve is provided with a die sleeve, a medium channel is arranged in the wall of the die sleeve, the medium channel is connected with a fluid pump through a circulating pipe, the fluid pump is connected with a heat exchanger through a pipeline, and the heat exchanger is installed at the feed inlet.
5. The three-dimensional heating type plastic extruder head according to claim 1, wherein the electromagnetic heating mechanism is provided with a heating control circuit, and the heating control circuit comprises a PLC controller, a temperature sensor, an air circuit breaker Q1, a relay K1 and a protector P1; the temperature sensor is arranged on the inner side of the inner sleeve;
the electromagnetic heating mechanism adopts an electric heater which is connected with a power supply through an air circuit breaker Q1 and a relay K1; the air circuit breaker Q1 is grounded through a protector P1;
the temperature sensor is connected with input X1 and input X2 of PLC controller, relay K1's coil one end is connected with PLC controller's output Y1, relay K1's coil other end and DC power supply negative pole are connected.
6. The three-dimensional heating type plastic extruder head according to claim 1, wherein the inner surface of the outer sleeve is provided with an insulating layer, and the insulating layer is made of asbestos, vermiculite, alumina or refractory fiber materials.
7. The three-dimensional heated plastic extruder head according to claim 1, wherein an insulating layer is provided on the inner surface of the outer sleeve, and the insulating layer is made of a ceramic material.
8. The three-dimensional heating type plastic extruder head according to claim 1, wherein a flange is arranged at the inlet end of the outer sleeve, and the extruder head is connected with the extruder body through the flange; the outer sleeve is made of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121935733.6U CN215969999U (en) | 2021-08-18 | 2021-08-18 | Three-dimensional heating type plastic extruder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121935733.6U CN215969999U (en) | 2021-08-18 | 2021-08-18 | Three-dimensional heating type plastic extruder head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215969999U true CN215969999U (en) | 2022-03-08 |
Family
ID=80519383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121935733.6U Active CN215969999U (en) | 2021-08-18 | 2021-08-18 | Three-dimensional heating type plastic extruder head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215969999U (en) |
-
2021
- 2021-08-18 CN CN202121935733.6U patent/CN215969999U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105499572A (en) | Extrusion spraying head of electromagnetic induction heating type 3D printer | |
| CN205341921U (en) | Shower nozzle is extruded to electromagnetic induction heating 3D printer | |
| CN215969999U (en) | Three-dimensional heating type plastic extruder head | |
| CN108908874A (en) | A kind of plastic cement production extruding injection moulding apparatus | |
| CN111016111A (en) | PEEK thick-wall pipe extrusion production process and device | |
| CN211744778U (en) | Closed electromagnetic induction heating device with copper pipe arranged in solid protective sleeve | |
| CN103522506A (en) | Renewable liner type electromagnetic heating injection molding machine barrel | |
| CN111546602A (en) | Injection molding particle extruder capable of improving plasticizing degree | |
| CN203092994U (en) | Mold temperature adjustable injection molding machine | |
| CN104552779B (en) | Nozzle of injection molding machine | |
| CN108556306B (en) | Heavy-load charging barrel rotary oscillation type induction heating system | |
| CN109036731B (en) | Plastic extrusion die for cable production | |
| CN207983745U (en) | A kind of cycle kneading device of polymer alloy | |
| CN212121248U (en) | High strength aluminum alloy ex-trusions extrusion production facility | |
| CN214491189U (en) | Plastic granulating equipment | |
| CN211138030U (en) | Injection molding machine heating economizer | |
| CN210792066U (en) | Hollow wall winding pipe production equipment | |
| CN209903779U (en) | Feeding and melting device of improved injection molding machine | |
| CN2774753Y (en) | Electromagnetic heater for plastic and rubber device | |
| CN102990855B (en) | Oil temperature heating hot runner device | |
| CN111168972A (en) | Efficient energy-saving combined heating device and method | |
| CN101938864A (en) | Plastic mechanical heating structure and reconstruction method of heating structure | |
| CN206953513U (en) | A kind of novel plastic 3D extruders | |
| CN102205219B (en) | Chemical electromagnetic induction equipment | |
| CN213564015U (en) | High-efficient feed melting equipment of injection molding machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |