CN211427056U - Large-scale laser copier easy to cool and radiate - Google Patents
Large-scale laser copier easy to cool and radiate Download PDFInfo
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- CN211427056U CN211427056U CN201922089455.6U CN201922089455U CN211427056U CN 211427056 U CN211427056 U CN 211427056U CN 201922089455 U CN201922089455 U CN 201922089455U CN 211427056 U CN211427056 U CN 211427056U
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- cool
- roller
- rotating shaft
- dissipate heat
- shell
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- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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Abstract
The utility model discloses a large laser copier easy to cool and radiate, a photographic fixing component is arranged in a casing, a radiator is arranged below the photographic fixing component, a fan is arranged below the radiator, and radiating holes are arranged on the casing below the fan; the fixing assembly comprises a shell, a heating roller and a pressure roller are arranged in the shell, a temperature sensor is arranged on the inner wall of the shell above the heating roller, and the temperature sensor is connected with a signal input end of a controller through a signal processing module; and a thermal protection switch is also arranged on the inner wall of the shell above the heating roller. The utility model can effectively reduce the heat generated by the long-time work of the large laser duplicator through two cooling structures of air cooling and water cooling to the photographic fixing component; in addition, through the circuit structure of the thermal protection switch, the heating roller is prevented from working at the limit temperature, protection is brought, and the problem that the surface of a fixing film or the surface of the rubber roller is damaged is avoided.
Description
Technical Field
The utility model relates to an easily large-scale laser copier of cooling heat dissipation belongs to laser copier technical field.
Background
At present, a large amount of paper is required to be copied in a quick printing shop and an image-text shop every day, and when continuous work or high ambient temperature is met, the phenomenon of overhigh temperature can occur in the connection work of a heating roller, so that the surface of a fixing film or a rubber roller can be damaged.
When the surface of the fixing film or the rubber roller is damaged, paper wrinkles can be generated, and paper is jammed when paper is discharged; it also affects the fixation of the toner on the paper surface, causing mottling and cross-linking. The existing copying machine stops heating when the temperature is too high by collecting the temperature of the heating roller, and the method cannot adjust the temperature of the heating roller.
SUMMERY OF THE UTILITY MODEL
The purpose is as follows: in order to overcome the defects existing in the prior art, the utility model provides a large laser copier which is easy to cool and radiate.
The technical scheme is as follows: in order to solve the technical problem, the utility model discloses a technical scheme does:
a large laser copier which is easy to cool and dissipate heat, comprising: the fixing device comprises a machine shell, a fixing assembly, a radiator, a fan and radiating holes, wherein the fixing assembly is arranged in the machine shell; the fixing assembly comprises a shell, a heating roller and a pressure roller are arranged in the shell, a temperature sensor is arranged on the inner wall of the shell above the heating roller, and the temperature sensor is connected with a signal input end of a controller through a signal processing module; the inner wall of the shell above the heating roller is further provided with a thermal protection switch, the input end of the thermal protection switch is connected with a power supply, the output end of the thermal protection switch is connected with the ground, the output end of the thermal protection switch is further connected with the base electrode of the triode through a resistor R1, the collector electrode of the triode is connected with the power supply through a resistor R2, the output end of the resistor R2 is connected with the signal input end of the controller, and the emitter electrode of the triode is grounded.
As a preferred scheme, the pressure roller comprises a first roller body and a rotating shaft, the rotating shaft is arranged in the first roller body, two ends of the rotating shaft are respectively and rotatably connected with a bearing seat on the shell, and a driven wheel is further sleeved at one end of the rotating shaft; the rotating shaft is of a hollow structure, two ends of the rotating shaft are connected with water delivery guide pipes, the rotating shaft, the pump body and the water tank form a loop, and the pump body and the water tank are fixed in the casing.
Preferably, the heating roller comprises a second roller body, and a heating lamp tube is arranged in the second roller body.
As a preferred scheme, the signal output end of the controller is respectively connected with the pump body, the heating lamp tube and the fan and used for controlling the working states of the pump body, the heating lamp tube and the fan.
Preferably, the radiator adopts a multi-layer radiating tooth structure.
Preferably, the heat sink is made of aluminum.
As the preferred scheme, the first roller body is made of silica gel.
Preferably, the temperature sensor is a thermistor.
Preferably, the signal processing module is configured as a comparison circuit.
Has the advantages that: the utility model provides a large laser copier easy to cool and radiate, which can effectively reduce the heat generated by the large laser copier in long-time work through two cooling structures of air cooling and water cooling to the fixing component; in addition, through the circuit structure of the thermal protection switch, the heating roller is prevented from working at the limit temperature, protection is brought, and the problem that the surface of a fixing film or the surface of the rubber roller is damaged is avoided. The cooling device has the advantages of reasonable design structure, convenient use and good cooling effect.
Drawings
FIG. 1 is a schematic view of a large laser copier;
FIG. 2 is a schematic view of a structure of a fixing assembly;
FIG. 3 is a schematic diagram of a water cooling structure of the pressure roller;
FIG. 4 is a circuit diagram of the operation of the signal processing module;
FIG. 5 is a circuit diagram of the operation of the thermal protection switch;
fig. 6 is an input/output connection diagram of the controller.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-2, a large-scale laser copier easy to cool and dissipate heat comprises a casing 1, a fixing component 2 is arranged in the casing 1, a heat sink 3 is arranged below the fixing component 2, a fan 4 is arranged below the heat sink 3, and heat dissipation holes are arranged in the casing 1 below the fan 4; the fixing component 2 comprises a shell 201, a heating roller 202 and a pressure roller 203 are arranged in the shell 201, a temperature sensor 3 is arranged on the inner wall of the shell 201 above the heating roller 202, and the temperature sensor 3 is connected with a signal input end of a controller 5 through a signal processing module 4; the inner wall of the shell 201 above the heating roller 202 is further provided with a thermal protection switch 6, the input end of the thermal protection switch 6 is connected with a power supply, the output end of the thermal protection switch 6 is connected with the ground, the output end of the thermal protection switch 6 is further connected with the base electrode of the triode through a resistor R1, the collector electrode of the triode is connected with the power supply through a resistor R2, the output end of the resistor R2 is connected with the signal input end of the controller 5, and the emitter electrode of the triode is grounded.
As shown in fig. 3, the pressure roller 203 includes a first roller body 2031 and a rotating shaft 2032, the rotating shaft 2032 is disposed in the first roller body 2031, two ends of the rotating shaft 2032 are respectively rotatably connected to the bearing seats 204 on the housing 201, and one end of the rotating shaft 2032 is further sleeved with the driven wheel 205; the rotating shaft 2032 is of a hollow structure, two ends of the rotating shaft 2032 are connected with water delivery conduits 7, the rotating shaft 2032, the pump body 8 and the water tank 9 form a loop, and the pump body 8 and the water tank 9 are fixed in the casing 1.
The heating roller 202 includes a second roller body 2021, and a heating lamp 2022 is disposed in the second roller body 2021.
The signal output end of the controller 5 is respectively connected with the pump body 8, the heating lamp tube 2022 and the fan 4, and is used for controlling the working states of the pump body, the heating lamp tube and the fan.
The radiator 3 adopts a multi-layer radiating tooth structure;
the radiator 3 is made of aluminum material.
The first roller body 2031 is made of silica gel.
The temperature sensor 3 adopts a thermistor.
The signal processing module 4 is provided as a comparison circuit.
Example (b):
when the large-scale laser copier works, a document to be copied is sent to the developing assembly 04 through a laser beam of the laser scanning assembly 03, the printing paper 01 is sent to the developing assembly 04 through the paper conveying assembly 02, carbon powder is transferred to the printing paper, and after the printing paper is heated and extruded through the heating roller and the pressure roller, the carbon powder is melted and then fixed on the printing paper.
As shown in fig. 4-6, in the normal operation of the large-scale laser copier, the voltage of the thermistor is input to the reverse input terminal of the comparator, the reference voltage is input to the forward input terminal of the comparator 401, the reference voltage is adjusted by the adjustable resistor R3, and when the temperature rises, the resistance of the thermistor drops, and the output voltage rises to be greater than the reference voltage, the output terminal Vout2 of the comparator 401 outputs a low level to the P5 pin of the controller 5. The controller sends out an instruction of working of the electric fan 4 through a pin P3, and the heat of the fixing component passes through the radiator with the multi-layer radiating tooth structure and is sent out of the machine shell from the radiating hole at the bottom of the machine shell through the electric fan.
If the P4 pin is low for a long time, the controller will issue a command to turn off the heating lamp 2022 through the P2 pin.
When the thermistor is invalid or the ambient temperature reaches 35 degrees or above for a long time, the memory metal part 601 of the thermal protection switch 6 is recessed downward when the temperature is greater than 200 degrees, driving the bottom connecting rod 602 downward, moving the moving contact 604 at the bottom of the connecting rod 602 downward to be disconnected with the stationary contact 603, the current is lost from the base of the triode, the triode is blocked, and the collector output terminal Vout1 outputs a high level to the P4 pin of the controller 5. The controller sends out the instruction of pump body 8 work through P1 pin, and the cooling liquid flows in the pivot cavity of pressure roller, and the pressure roller carries out water-cooling with the heating roller that contacts.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (9)
1. A large laser copier which is easy to cool and dissipate heat, comprising: casing, its characterized in that: a fixing assembly is arranged in the casing, a radiator is arranged below the fixing assembly, a fan is arranged below the radiator, and heat dissipation holes are formed in the casing below the fan; the fixing assembly comprises a shell, a heating roller and a pressure roller are arranged in the shell, a temperature sensor is arranged on the inner wall of the shell above the heating roller, and the temperature sensor is connected with a signal input end of a controller through a signal processing module; the inner wall of the shell above the heating roller is further provided with a thermal protection switch, the input end of the thermal protection switch is connected with a power supply, the output end of the thermal protection switch is connected with the ground, the output end of the thermal protection switch is further connected with the base electrode of the triode through a resistor R1, the collector electrode of the triode is connected with the power supply through a resistor R2, the output end of the resistor R2 is connected with the signal input end of the controller, and the emitter electrode of the triode is grounded.
2. A large-sized laser copying machine easy to cool and dissipate heat according to claim 1, characterized in that: the pressure roller comprises a first roller body and a rotating shaft, the rotating shaft is arranged in the first roller body, two ends of the rotating shaft are respectively and rotatably connected with the bearing seats on the shell, and one end of the rotating shaft is also sleeved with a driven wheel; the rotating shaft is of a hollow structure, two ends of the rotating shaft are connected with water delivery guide pipes, the rotating shaft, the pump body and the water tank form a loop, and the pump body and the water tank are fixed in the casing.
3. A large-sized laser copying machine easy to cool and dissipate heat according to claim 1, characterized in that: the heating roller comprises a second roller body, and a heating lamp tube is arranged in the second roller body.
4. A large-sized laser copying machine easy to cool and dissipate heat according to claim 1, characterized in that: and the signal output end of the controller is respectively connected with the pump body, the heating lamp tube and the fan and used for controlling the working states of the pump body, the heating lamp tube and the fan.
5. A large-sized laser copying machine easy to cool and dissipate heat according to claim 1, characterized in that: the radiator adopts a multi-layer radiating tooth structure.
6. A large-sized laser copying machine easy to cool and dissipate heat according to claim 1, characterized in that: the radiator is made of aluminum materials.
7. A large-sized laser copying machine easy to cool and dissipate heat according to claim 2, characterized in that: the first roller body is made of silica gel.
8. A large-sized laser copying machine easy to cool and dissipate heat according to claim 1, characterized in that: the temperature sensor adopts a thermistor.
9. A large-sized laser copying machine easy to cool and dissipate heat according to claim 1, characterized in that: the signal processing module is arranged as a comparison circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922089455.6U CN211427056U (en) | 2019-11-28 | 2019-11-28 | Large-scale laser copier easy to cool and radiate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922089455.6U CN211427056U (en) | 2019-11-28 | 2019-11-28 | Large-scale laser copier easy to cool and radiate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211427056U true CN211427056U (en) | 2020-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922089455.6U Active CN211427056U (en) | 2019-11-28 | 2019-11-28 | Large-scale laser copier easy to cool and radiate |
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| Country | Link |
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| CN (1) | CN211427056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989310A (en) * | 2019-11-28 | 2020-04-10 | 南京信息职业技术学院 | Large-scale laser copier easy to cool and radiate |
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2019
- 2019-11-28 CN CN201922089455.6U patent/CN211427056U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989310A (en) * | 2019-11-28 | 2020-04-10 | 南京信息职业技术学院 | Large-scale laser copier easy to cool and radiate |
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