CN212288594U - Feed cylinder heating double protection device - Google Patents
Feed cylinder heating double protection device Download PDFInfo
- Publication number
- CN212288594U CN212288594U CN202020846161.3U CN202020846161U CN212288594U CN 212288594 U CN212288594 U CN 212288594U CN 202020846161 U CN202020846161 U CN 202020846161U CN 212288594 U CN212288594 U CN 212288594U
- Authority
- CN
- China
- Prior art keywords
- heating
- air switch
- alternating current
- port
- current contactor
- 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
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a feed cylinder heating duplicate protection device, include the feed cylinder, be used for carrying out heating ring, the heating power supply control circuit that heats to the feed cylinder. All heating rings are protected by a main circuit comprising an alternating current contactor and the like, each section of heating ring is protected by a branch circuit comprising controls such as a breaker with a fusible core, if the temperature of the heating ring is too high due to faults of a heating system, the fusible core is automatically fused, the alternating current contactor reacts and cuts off load current, so that the controls are protected from being damaged, the temperature of the charging barrel is enabled not to exceed the allowable temperature, and the protection effect of heating the charging barrel is realized.
Description
Technical Field
The utility model relates to an injection molding machine technical field especially relates to a feed cylinder heating duplicate protection device.
Background
An injection molding machine, also known as an injection molding machine or an injection molding machine, functions to heat and plasticize a certain amount of plastic within a prescribed time in one cycle of the injection molding machine to achieve good fluidity, to inject molten plastic into a mold cavity under a certain pressure and speed, and to hold a molten material injected into the mold cavity after the injection is completed.
The heating system is used for heating the charging barrel and the injection nozzle, the charging barrel of the injection molding machine generally adopts an electric heating ring as a heating device and is arranged outside the charging barrel, and heat is conducted through the wall of the charging barrel to provide a heat source for material plasticization.
When the heating system is in failure, the temperature of the heating ring is abnormally increased, so that the mechanical and rubber sealing parts and the like on the charging barrel of the injection molding machine are easily subjected to thermal deformation, and a circuit controller and the like are damaged.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide a dual protection device for heating a material cylinder.
A cartridge heating double protection device comprising: the device comprises a charging barrel, a heating ring for heating the charging barrel and a heating power supply control circuit;
the heating ring is arranged on the surface of the charging barrel in a surrounding manner;
the heating power supply control circuit is connected with the heating ring, and the heating power supply control circuit is also connected with an external power supply for supplying electric energy to the heating ring.
In one embodiment, the heating power control circuit includes: the main circuit is composed of a first air switch, a first alternating current contactor, a second air switch, a second alternating current contactor and a hybrid synthesizer, and the branch circuit is composed of a third air switch, a breaker, a solid-state relay and the hybrid synthesizer;
the first air switch is connected with the external power supply;
the first alternating current contactor is connected with the air switch;
the second air switch is respectively connected with the first alternating current contactor and the second alternating current contactor;
the second alternating current contactor is respectively connected with the hybrid synthesizer and the heating ring;
the third air switch is respectively connected with the first alternating current contactor and the circuit breaker;
the circuit breaker is connected with the solid-state relay;
the solid-state relay is respectively connected with the heating ring and the hybrid synthesizer.
In one embodiment, the number of the branch circuits is multiple.
In one embodiment, the circuit breaker comprises a fusible core-equipped circuit breaker.
In one embodiment, the external power source comprises a three-phase power source.
In one embodiment, the output end U1 of the three-phase power supply is connected with a first port of the first air switch, and a second port of the first air switch is connected with a first port of the first alternating current contactor; an output end V1 of the three-phase power supply is connected with a third port of the first air switch, and a fourth port of the first air switch is connected with a third port of the first alternating current contactor; an output end W1 of the three-phase power supply is connected with a fifth port of the first air switch, and a sixth port of the first air switch is connected with a third port of the first alternating current contactor.
In one embodiment, the second output end of the first alternating current contactor is connected with a second air switch, the second air switch is connected with the input end of a second alternating current contactor T1, the end L1 of the second alternating current contactor is connected with a heating coil, and the heating coil is connected with a neutral wire; the fourth output of first ac contactor is connected with third air switch, third air switch with the circuit breaker input is connected, circuit breaker end output and solid state relay T1 end connection, solid state relay L1 end is connected with the heating coil, the heating coil is connected with the neutral conductor.
The utility model relates to a feed cylinder heating duplicate protection device, include the feed cylinder, be used for carrying out heating ring, the heating power supply control circuit that heats to the feed cylinder. All heating rings are protected by a main circuit comprising an alternating current contactor and the like, each section of heating ring is protected by a branch circuit comprising controls such as a breaker with a fusible core, if the temperature of the heating ring is too high due to faults of a heating system, the fusible core is automatically fused, the alternating current contactor reacts and cuts off load current, so that the controls are protected from being damaged, the temperature of the charging barrel is enabled not to exceed the allowable temperature, and the protection effect of heating the charging barrel is realized.
Drawings
Fig. 1 is a schematic structural view of a cartridge heating double protection device.
Detailed Description
For better understanding of the objects and advantages of the present application, the present application will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
An injection moulding machine, also known as an injection moulding machine or an injection machine, is called a beer machine in many factories, and an injection moulding product is called a beer piece, which is main moulding equipment for making thermoplastic plastics or thermosetting plastics into plastic products with various shapes by using a plastic moulding mould. The injection molding machine generally comprises an injection system, a mold closing system, a hydraulic transmission system, an electrical control system, a lubricating system, a heating and cooling system, a safety monitoring system and the like, wherein the injection system comprises a plasticizing device and a power transmission device, and a charging barrel is a traditional Chinese medicine part of the plasticizing device. The heating system is used for heating the charging barrel and the injection nozzle, the charging barrel of the injection molding machine generally adopts an electric heating ring as a heating device and is arranged outside the charging barrel, and heat is conducted through the wall of the charging barrel to provide a heat source for material plasticization. When the heating system is in failure, the temperature of the heating ring is abnormally increased, so that the heat deformation of machinery, rubber sealing parts and the like on the charging barrel of the injection molding machine is easily caused, and a circuit controller and the like are damaged.
In one embodiment, as shown in fig. 1, there is provided a cartridge heating double protection device, comprising: the charging barrel plays a role in extrusion and heat transfer; the heating ring is used for heating the charging barrel and is arranged outside the charging barrel; a heating power supply control circuit which plays a protective role when overheating or current overload occurs; the heating power supply control circuit is connected with the heating ring and is also connected with an external power supply which provides electric energy for the heating ring. When the heating system is abnormal and the temperature of the heating ring is abnormally increased, the heating power supply control circuit can perform circuit breaking treatment on the circuit.
In one embodiment, the heating power control circuit comprises: a main circuit and a branch circuit. The main circuit consists of a first air switch, a first alternating current contactor, a second air switch, a second alternating current contactor and a hybrid synthesizer. The distribution circuit is composed of a third air switch, a circuit breaker, a solid-state relay and a hybrid synthesizer, and when a certain section of heating ring is abnormal, the air switch and the circuit breaker of the distribution circuit are controlled to cut off the circuit, so that damage to important controls is prevented, and inspection and maintenance are facilitated. The first air switch is connected with an external power supply; the first alternating current contactor is connected with the air switch; the second air switch is respectively connected with the first alternating current contactor and the second alternating current contactor; the second alternating current contactor is respectively connected with the hybrid synthesizer and the heating ring; the third air switch is respectively connected with the first alternating current contactor and the circuit breaker; the circuit breaker is connected with the solid-state relay; the solid-state relay is respectively connected with the section of heating ring and the hybrid synthesizer.
In one embodiment, the heating power supply control circuit of the cartridge heating double protection device comprises a plurality of sub circuits for controlling different heating rings.
In one embodiment, the branch circuit breaker whose cartridge heats the power control circuit includes a fusible core breaker to timely fuse the protection circuit.
In one embodiment, the external power source of its cartridge heating double protection device comprises a three phase power source.
In one embodiment, the output terminal U1 of the three-phase power source is connected to a first port of a first air switch, and a second port of the first air switch is connected to a first port of a first ac contactor; the output end V1 of the three-phase power supply is connected with the third port of the first air switch, and the fourth port of the first air switch is connected with the third port of the first alternating current contactor; the output end W1 of the three-phase power supply is connected with the fifth port of the first air switch, and the sixth port of the first air switch is connected with the third port of the first ac contactor.
In one embodiment, the second output end of the first alternating current contactor is connected with a second air switch, the second air switch is connected with the input end of a second alternating current contactor T1, the end L1 of the second alternating current contactor is connected with a heating coil, and the heating coil is connected with a neutral wire; the fourth output end of the first alternating current contactor is connected with a third air switch, the third air switch is connected with the input end of a circuit breaker, the output end of the circuit breaker end is connected with the T1 end of a solid-state relay, the L1 end of the solid-state relay is connected with a heating coil, and the heating coil is connected with a neutral line.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. A charging barrel heating double protection device is characterized by comprising: the device comprises a charging barrel, a heating ring for heating the charging barrel and a heating power supply control circuit;
the heating ring is arranged on the surface of the charging barrel in a surrounding manner;
the heating power supply control circuit is connected with the heating ring, and the heating power supply control circuit is also connected with an external power supply for supplying electric energy to the heating ring.
2. A cartridge heating double protection device according to claim 1, wherein said heating power supply control circuit comprises: the main circuit is composed of a first air switch, a first alternating current contactor, a second air switch, a second alternating current contactor and a hybrid synthesizer, and the branch circuit is composed of a third air switch, a breaker, a solid-state relay and the hybrid synthesizer;
the first air switch is connected with the external power supply;
the first alternating current contactor is connected with the air switch;
the second air switch is respectively connected with the first alternating current contactor and the second alternating current contactor;
the second alternating current contactor is respectively connected with the hybrid synthesizer and the heating ring;
the third air switch is respectively connected with the first alternating current contactor and the circuit breaker;
the circuit breaker is connected with the solid-state relay;
the solid-state relay is respectively connected with the heating ring and the hybrid synthesizer.
3. The cartridge heating double protection device according to claim 2, wherein the number of the sub-circuits is plural.
4. The cartridge heating double protection device of claim 2, wherein the circuit breaker comprises a fusible core circuit breaker.
5. The cartridge heating double protection device of claim 2, wherein the external power source comprises a three-phase power source.
6. The cartridge heating double protection device according to claim 5, wherein the output terminal U1 of the three-phase power source is connected with the first port of the first air switch, and the second port of the first air switch is connected with the first port of the first AC contactor; an output end V1 of the three-phase power supply is connected with a third port of the first air switch, and a fourth port of the first air switch is connected with a third port of the first alternating current contactor; an output end W1 of the three-phase power supply is connected with a fifth port of the first air switch, and a sixth port of the first air switch is connected with a third port of the first alternating current contactor.
7. The dual cartridge heating protection device of claim 2, wherein said first ac contactor second output terminal is connected to a second air switch, said second air switch is connected to a second ac contactor T1 input terminal, said second ac contactor L1 terminal is connected to a heating coil, said heating coil is connected to a neutral wire; the fourth output of first ac contactor is connected with third air switch, third air switch with the circuit breaker input is connected, circuit breaker end output and solid state relay T1 end connection, solid state relay L1 end is connected with the heating collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020846161.3U CN212288594U (en) | 2020-05-19 | 2020-05-19 | Feed cylinder heating double protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020846161.3U CN212288594U (en) | 2020-05-19 | 2020-05-19 | Feed cylinder heating double protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212288594U true CN212288594U (en) | 2021-01-05 |
Family
ID=73968845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020846161.3U Active CN212288594U (en) | 2020-05-19 | 2020-05-19 | Feed cylinder heating double protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212288594U (en) |
-
2020
- 2020-05-19 CN CN202020846161.3U patent/CN212288594U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2013091092A1 (en) | System for disconnecting electrical power upon regulation failure | |
| CN212288594U (en) | Feed cylinder heating double protection device | |
| JPH04122617A (en) | Hot runner type injection molding method and device therefor | |
| CN102785324A (en) | Injection moulding process of polyethylene (PE) material pieces for infusion apparatus | |
| CN204451005U (en) | A kind of injection machine | |
| KR20180011708A (en) | Double extruder type injection machine having different rotating speeds | |
| CN203092994U (en) | Mold temperature adjustable injection molding machine | |
| CN203876179U (en) | Finished product cooling system of injection molding machine | |
| KR101683360B1 (en) | Injection molding machine | |
| CN103862590A (en) | Apparatus and method for producing plastics material pre-forms from a thermoplastic plastics material | |
| CN105415630A (en) | Heating control device, heating device and injection molding machine | |
| CN101742747A (en) | Distributed induction heating system | |
| CN207669725U (en) | The heating power of plastic-injection moulding machine heating element monitors system | |
| CN211293772U (en) | Heating control device for aluminum processing extrusion container | |
| CN103465420B (en) | A kind of mould | |
| CN205185245U (en) | Heating control device, heating device and injection molding machine | |
| CN107175801A (en) | A kind of quick changeable temperature mould | |
| CN109467919A (en) | It is a kind of for manufacturing the material of high-pressure vacuum breaker shell | |
| CN217476564U (en) | Heating ultra-high temperature protection system of plastic extruding machine | |
| CN103009559A (en) | Injection molding mold | |
| CN201645751U (en) | Automatic cutting net device | |
| JP6963081B1 (en) | How to operate an electric injection molding machine | |
| CN206628822U (en) | A kind of optical cable extruding machine feeding dries trip free device | |
| CN101298179A (en) | High-finish plastic product production system | |
| CN203818501U (en) | Multipurpose automotive injection-molding jetting unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |