CN112776466A - License plate thermoprinting machine of stable accuse temperature of rapid heating - Google Patents
License plate thermoprinting machine of stable accuse temperature of rapid heating Download PDFInfo
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- CN112776466A CN112776466A CN202110153032.5A CN202110153032A CN112776466A CN 112776466 A CN112776466 A CN 112776466A CN 202110153032 A CN202110153032 A CN 202110153032A CN 112776466 A CN112776466 A CN 112776466A
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- heating
- pressure roller
- license plate
- hot stamping
- upper pressure
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 120
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 110
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 110
- 238000009413 insulation Methods 0.000 claims description 42
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000741 silica gel Substances 0.000 claims description 8
- 229910002027 silica gel Inorganic materials 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 6
- 239000000523 sample Substances 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims 4
- 241001330002 Bambuseae Species 0.000 claims 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 4
- 239000011425 bamboo Substances 0.000 claims 4
- 239000002699 waste material Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005096 rolling process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 238000004804 winding Methods 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000003825 pressing Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000007651 thermal printing Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F16/00—Transfer printing apparatus
- B41F16/0006—Transfer printing apparatus for printing from an inked or preprinted foil or band
- B41F16/002—Presses of the rotary type
- B41F16/0026—Presses of the rotary type with means for applying print under heat and pressure, e.g. using heat activable adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F16/00—Transfer printing apparatus
- B41F16/0006—Transfer printing apparatus for printing from an inked or preprinted foil or band
- B41F16/006—Arrangements for moving, supporting or positioning the printing foil or band
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F16/00—Transfer printing apparatus
- B41F16/0006—Transfer printing apparatus for printing from an inked or preprinted foil or band
- B41F16/0073—Transfer printing apparatus for printing from an inked or preprinted foil or band with means for printing on specific materials or products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
- B41F19/02—Apparatus or machines for carrying out printing operations combined with other operations with embossing
- B41F19/06—Printing and embossing between a negative and a positive forme after inking and wiping the negative forme; Printing from an ink band treated with colour or "gold"
- B41F19/062—Presses of the rotary type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2219/00—Printing presses using a heated printing foil
- B41P2219/20—Arrangements for moving, supporting or positioning the printing foil
- B41P2219/23—Winding up the printing foil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2219/00—Printing presses using a heated printing foil
- B41P2219/30—Printing dies
- B41P2219/31—Heating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2219/00—Printing presses using a heated printing foil
- B41P2219/40—Material or products to be decorated or printed
- B41P2219/42—Sheet-like material
Abstract
The invention relates to a license plate hot stamping machine capable of quickly heating and stably controlling temperature, which comprises a heating cover (1), an upper pressure roller (2), a lower pressure roller (4), a conveyor belt (3), a carbon belt rotating shaft (12) and a control system, wherein the upper pressure roller (2) is rotatably arranged in the heating cover (1), the conveyor belt (3) is positioned between the upper pressure roller (2) and the lower pressure roller (4), the carbon belt rotating shaft (12) is respectively arranged in the front and back directions of the rolling direction of the upper pressure roller (2), a heating cylinder is arranged in the upper pressure roller (2), the heating cover (1) is connected with a license plate hot stamping machine body through a lifting structure, the bottom of the lower pressure roller (4) is provided with a pressure sensor, the signal output end of the pressure sensor is electrically connected with the control system, and the signal output end of the control system is electrically connected with the lifting structure. The invention can regulate and control the pressure born by the license plate in real time, ensure the hot stamping effect, avoid the waste of the carbon ribbon and prevent operators from being injured.
Description
Technical Field
The invention relates to the technical field of vehicle license plate production, in particular to a license plate hot stamping machine capable of quickly heating and stably controlling temperature.
Background
After the license plate is molded by the die, the license plate needs to be painted and the number on the license plate needs to be subjected to hot stamping treatment. The hot stamping process of the license plate is to press the carbon ribbon on the license plate through the upper pressure roller, and the high temperature on the surface of the upper pressure roller is to print the carbon on the carbon ribbon on the number of the license plate, thereby completing the hot stamping of the license plate. The hot stamping effect of the license plate is directly related to the pressure of the upper pressure roller on the license plate, incomplete hot stamping on the surface of the number part and poor hot stamping effect can be caused when the pressure given by the upper pressure roller is insufficient, the carbon produced under the condition of insufficient hot stamping pressure can be easily scraped by a nail to form a print, and the carbon on the surface of the number on the license plate can easily fall off in the using process of the license plate, so that the recognition of the license plate is influenced.
In order to ensure the hot stamping effect, a section of carbon ribbon can not be reused after hot stamping, so that the carbon ribbon moves along with the movement of the license plate when the license plate is hot stamped. License plate thermoprint is through last pressure roller pressure on the license plate surface after the heating to accomplish the thermoprint to the license plate, but the license plate needs to be carried out from last pressure roller bottom completely after the thermoprint, this process has not carried out the thermoprint, but the license plate still is moving, so the carbon ribbon also can follow the removal, the carbon ribbon that follows the removal does not pass through the thermoprint process, but has passed through the position of last pressure roller bottom, if a license plate is directly put into again this moment, the carbon ribbon that will lead to following the removal after last license plate thermoprint wastes. And because the requirement of the hot stamping of the license plate on the surface temperature precision of the upper pressure roller is high, the upper pressure roller needs to wait for reheating after the hot stamping of one license plate, the hot stamping of the license plate is basically intermittent, so that if the carbon ribbon which is not subjected to the hot stamping process is not rewound, a large amount of carbon ribbon is wasted, the cost of the carbon ribbon of each license plate is about 5 yuan, and the waste of the carbon ribbon can be caused once the hot stamping machine stops once. The method of manually rewinding the carbon ribbon has low rewinding precision on the carbon ribbon, cannot accurately control the rewinding distance of the carbon ribbon, leads to unqualified hot stamping effect due to too much rewinding, and still causes waste of the carbon ribbon due to too little rewinding. Therefore, the problem of great waste of the carbon ribbon exists in the prior art.
The common license plate hot stamping machine adopts an external heating mode to heat the upper pressure roller, the heating mode is that a heating cover is arranged on the outer side of the upper pressure roller, a heating element is arranged in the heating cover, and the heating element heats the surface of the upper pressure roller in a heat radiation mode. The heating mode has the defects of slow heating speed and difficult temperature control. The upper pressure roller is heated by adopting an external heat radiation mode, the temperature of a heating element is far higher than the temperature which needs to be reached by the surface of the upper pressure roller, so that the surface of the upper pressure roller can be heated to a specified temperature, and the surface of the upper pressure roller is only heated after the upper pressure roller is heated. Moreover, since the temperature of the heating element is much higher than the standard temperature required by the surface of the upper pressure roller, the temperature is easily too high during the heating process, so that the heating mode is difficult to control the temperature.
The license plate hot stamping machine carries out hot stamping on a license plate through the pressure roller structure, and the upper pressure roller is heated, so that hot stamping can be carried out on the upper pressure roller after the temperature of the upper pressure roller reaches a specified temperature. The temperature of the hot stamping of the upper pressure roller is usually about 200 ℃, and the upper pressure roller needs to rotate along with the movement of the license plate in the hot stamping process, so that the temperature of the contact surface of the license plate is ensured to be stable. Because the temperature of the upper pressure roller is high, people are required to continuously put license plates on the license plate hot stamping machine, the heating covers are arranged in front of and behind the rotation direction of the upper pressure roller to protect the heating roller, and when people are located in the axial direction of the heating roller, the people touch the heating roller, so that the danger of scalding people is caused. And after the upper pressure roller is heated, the temperature is directly transferred to the rotating shaft, and the bearing for mounting the rotating shaft is greatly damaged due to overhigh temperature of the rotating shaft, so that the service life of the license plate hot stamping machine is shortened.
In the invention patent with the application number of 201710386204.7 and named as license plate hot stamping equipment with a worm gear motor controlling a rubber roller to move up and down, a film placing shaft does not have an automatic rotation function, and the use of a carbon ribbon can be saved only by manually controlling rotation after hot stamping is finished.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a license plate hot stamping machine which is high in heating speed, easy in temperature control and capable of accurately controlling the rotation of a carbon ribbon. The starting waiting time of the license plate hot stamping machine can be shortened, the hot stamping efficiency is accelerated, and the waste of the thermal printing process to the carbon ribbon is reduced.
The purpose of the invention is realized by the following technical scheme: the utility model provides a license plate thermoprinting machine of fast heating stable accuse temperature, includes heating mantle, goes up the pressure roller, presses the roller, conveyer belt, carbon ribbon pivot and control system down, it rotationally sets up in the heating mantle to go up the pressure roller, it is protruding from the heating mantle bottom to go up the pressure roller bottom, the conveyer belt is located between pressure roller and the lower pressure roller, respectively be provided with a carbon ribbon pivot on the fore-and-aft direction of the roll direction of going up the pressure roller, upward be provided with the heating cylinder in the pressure roller, the heating mantle passes through elevation structure and this body coupling of license plate thermoprinting machine, the pressure roller bottom is provided with pressure sensor down, pressure sensor's signal output part and control system electricity are connected, control system's signal output part and elevation structure electricity are connected. The pressure sensor is used for detecting the pressure applied to the lower pressure roller, the upper pressure roller is provided with a lifting structure, the lifting structure is used for controlling the height position of the upper pressure roller, and the pressure sensor is electrically connected with the lifting structure. When the pressure detected by the pressure sensor does not reach a specified range, the pressure formed by the upper pressure roller on the license plate is insufficient, the lifting structure controls the upper pressure roller to move downwards, the pressure of the upper pressure roller on the license plate is increased, the pressure of the upper pressure roller on the license plate is transmitted to the license plate, the license plate transmits the pressure to the conveyor belt, the conveyor belt transmits the pressure to the lower pressure roller, the pressure received by the lower pressure roller is transmitted to the pressure sensor, and when the pressure detected by the pressure sensor is within the specified range, the lifting structure stops moving. Similarly, when the pressure detected by the pressure sensor is larger than the specified range, the lifting structure moves upwards to reduce the pressure of the upper pressure roller on the license plate, and when the pressure is reduced to be within the specified range, the lifting structure stops moving.
Preferably, the lower pressure roller is fixed on a first support, a second support is arranged below the first support, the first support and the second support are connected through a vertical sliding rail, a gap exists between the bottom of the first support and the second support, and the pressure sensor is located in the gap.
Preferably, the heating cover is provided with a thread hole and a guide hole, the lifting structure is a screw rod and a guide rod which are arranged on the hot stamping machine, the thread hole is connected with the screw rod on the hot stamping machine, the guide hole is connected with the guide rod on the hot stamping machine, and the thread hole and the guide hole are parallel and vertically arranged.
Preferably, a supporting spring is further arranged between the bottom of the first support and the second support, and a buffer spring is arranged between the pressure sensor and the second support. The support spring and the buffer spring are large elastic springs, so that the support spring and the buffer spring can basically keep not deformed when the first support is stressed, the stability of the pressure borne by the license plate is ensured, and the buffer spring can play a role in buffering when the descending position of the upper pressure roller is too low.
Preferably, a heating element and a heating medium are arranged in the heating cylinder, and the heating medium is heat conduction oil. The silica gel barrel is heated through the heat conduction oil, so that the surface temperature of the silica gel barrel is more uniform.
Preferably, temperature sensors are arranged on the upper pressure roller and the heating cover, a probe of the temperature sensor in the heating cover is opposite to the surface of the upper pressure roller, the temperature sensor on the upper pressure roller is electrically connected with heating elements in the heating cylinder, and the temperature sensor on the heating cover is electrically connected with the heating elements on the heating cover. The temperature sensor is used for controlling the surface temperature of the upper pressure roller in real time and ensuring that the surface temperature of the upper pressure roller is within a specified thermoprint temperature range.
Preferably, the upper pressure roller further comprises a silica gel cylinder sleeved on the heating cylinder and a heat insulation cylinder positioned inside the heating cylinder, the heat insulation cylinder is connected with the heating cover through a shaft, the heat insulation cylinder comprises an outer cylinder and an inner cylinder, and the outer cylinder and the inner cylinder are connected through a plurality of ribs. The heat insulation cylinder can greatly reduce the temperature transmission to the rotating shaft, and the problem that the bearing is damaged due to overhigh temperature of the rotating shaft is avoided. The radiating area is increased by the outer cylinder, the inner cylinder and the ribs, and heat is transferred to the inner cylinder through the ribs, so that the heat which can be transferred to the inner cylinder is less. The heat insulation plate is used for avoiding the problem that people contact the heating roller from the axial direction to cause scalding.
Preferably, a heat insulation plate is arranged at one end of the heat insulation cylinder, the heat insulation plate is fixed on the heat insulation cylinder through screws, a support body is arranged between the heat insulation plate and the heat insulation cylinder, and a gap is formed between the heat insulation plate and the heat insulation cylinder through the support body. A gap is arranged between the heat insulation plate and the heat insulation cylinder, so that air between the inner cylinder and the outer cylinder can be circulated, and hot air can be conveniently emitted. The support body is a gasket or a boss arranged on the heat insulation plate.
Preferably, be fixed with the carbon tape roll in the carbon tape pivot, two one side of a carbon tape pivot in the carbon tape pivot is provided with and is used for detecting the first sensor that the carbon tape roll was changed, two carbon tape pivots all are through first servo motor drive, the conveyer belt passes through second servo motor drive, first sensor, first servo motor and second servo motor all are connected with control system electricity. Because the shape of carbon tape roll is similar with scotch tape, along with the use of carbon tape, every thermoprint a license plate, the carbon tape roll needs the pivoted angle will increase partly, consequently first servo motor's slew velocity changes at any time, first servo motor's slew velocity can be calculated according to the diameter of carbon tape roll, the carbon tape roll diameter of every specification is fixed, only need first servo motor's slew velocity invariant to change, then can guarantee that the carbon tape can not appear extravagantly at thermoprint in-process at every turn, consequently first servo motor is when following the rotation of second servo motor, slew velocity is unchangeable. When the second servo motor stops rotating, the license plate is indicated to be completely withdrawn from the thermoprinting machine after completing the thermoprinting, at the moment, the first servo motor rotates reversely, so that the carbon tape roll rotates reversely, and the carbon tape roll which is not subjected to the thermoprinting can be obtained. The rotation angle when the carbon ribbon revolves is the same as the rotation angle control mode when the carbon ribbon is pulled out from the carbon ribbon roll, and the diameter of the carbon ribbon roll is smaller and smaller along with the use of the carbon ribbon, and the rotation angle of the first servo motor is larger and larger. When the carbon ribbon on the carbon ribbon roll is used up, and when the carbon ribbon roll is replaced, the first sensor can sense the departure of the original carbon ribbon roll, a signal can be sent to the control system, the control system controls the rotation angle of the first servo motor to reset, the rotation speed of the first servo motor after the carbon ribbon roll is replaced accords with the moving speed of a license plate, and waste of the carbon ribbon is avoided.
Preferably, the conveyer belt includes two areas body, and the conveyer belt downside of telling is provided with the second sensor, the second sensor is located under two areas body clearance between, the second sensor is connected with control system electricity. The second sensor is used for detecting whether a license plate exists on the conveyor belt or not, when the second sensor detects that the license plate exists on the conveyor belt, the second sensor senses signals, the second servo motor is started through the control system to control the second servo motor to start rotating, and when the second sensor does not sense the license plate, the control system controls the second servo motor to rotate by a specified angle, so that the license plate is completely conveyed out of the hot stamping machine.
Preferably, guide shafts are arranged between the two carbon ribbon rotating shafts and the upper pressure roller, and the carbon ribbon stretched out from the carbon ribbon roll bypasses the guide shafts and then bypasses the bottom of the upper pressure roller. The guide shaft is used for adjusting the angle between the carbon belt and the upper pressure roller.
Preferably, the first sensor and the second sensor are infrared sensors.
Preferably, the carbon ribbon roll comprises a winding drum and a carbon ribbon wound on the winding drum, the winding drum is fixedly connected with a carbon ribbon rotating shaft, a step is arranged on the carbon ribbon rotating shaft, the winding drum is sleeved on the carbon ribbon rotating shaft, one end of the winding drum is abutted to the end face of the step, a pressing plate is arranged at the other end of the winding drum, and the pressing plate is fixed on the carbon ribbon rotating shaft through a bolt and compresses the end face of the winding drum.
Preferably, the first sensor faces an end face of the spool. First servo motor detects the reel, ensures that the detected signal can not receive the influence of carbon ribbon.
Preferably, the screw rod and the upper pressure roller are both driven by a servo motor, and the servo motor for driving the upper pressure roller is fixed on the heating cover.
The invention has the following advantages:
1. the pressure born by the license plate can be regulated and controlled in real time, the hot stamping effect is ensured, and the hot stamping qualification rate of the license plate is greatly increased.
2. The temperature that the heating cylinder transmitted for the pivot can be reduced by a wide margin, avoids the pivot high temperature to lead to bearing life to reduce the problem that the damage appears easily. The arrangement of the heat insulation plate can reduce the probability of scalding caused by the fact that personnel contact the axial end face of the heating roller.
3. The carbon belt can be accurately controlled to rotate, waste of the carbon belt is avoided, production cost is reduced, and the quality of license plate hot stamping is guaranteed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a top view of a portion of the heating jacket;
FIG. 4 is a cross-sectional view of the upper nip roller portion;
FIG. 5 is a right side view of FIG. 4 with the heat shield removed;
FIG. 6 is a schematic view showing the distribution positions of bosses on the heat insulating plate;
FIG. 7 is a schematic structural view of a portion of a carbon ribbon roll;
in the figure: 1-a heating cover, 2-an upper pressure roller, 3-a conveyor belt, 4-a lower pressure roller, 5-a first bracket, 6-a second bracket, 7-a support spring, 8-a buffer spring, 9-a guide rod, 10-a slide rail, 11-a second sensor, 12-a carbon belt rotating shaft, 13-a guide shaft, 14-a carbon belt coil, 15-a screw rod, 16-a temperature sensor, 17-a heating element, 18-a guide hole, 19-a wire hole, 20-a silica gel cylinder, 21-a heating cylinder, 22-a heat insulation cylinder, 23-a rib, 24-a support body, 25-a heat insulation plate, 26-a first sensor, 27-a heating medium, 28-a current collecting ring, 29-a winding cylinder, 30-a pressure plate and 31-a step.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.
As shown in fig. 1-7, a license plate hot stamping machine with rapid heating and stable temperature control includes a heating cover 1, an upper pressure roller 2, a lower pressure roller 4, a conveyor belt 3, a carbon ribbon rotating shaft 12 and a control system, the upper pressure roller 2 is rotatably disposed in the heating cover 1, the bottom of the upper pressure roller 2 protrudes from the bottom of the heating cover 1, the conveyor belt 3 is disposed between the upper pressure roller 2 and the lower pressure roller 4, the front and rear directions of the rolling direction of the upper pressure roller 2 are respectively provided with the carbon ribbon rotating shaft 12, a heating cylinder 21 is disposed in the upper pressure roller 2, the heating cover 1 is connected with the license plate hot stamping machine body through a lifting structure, the bottom of the lower pressure roller 4 is provided with a pressure sensor, a signal output end of the pressure sensor is electrically connected with the control system, and a signal output end of the control system is electrically connected with the lifting structure. The pressure sensor is used for detecting the pressure applied on the lower pressure roller 4, the upper pressure roller 2 is provided with a lifting structure, the lifting structure is used for controlling the height position of the upper pressure roller 2, and the pressure sensor is electrically connected with the lifting structure. When the pressure detected by the pressure sensor does not reach a specified range, the pressure formed by the upper pressure roller 2 on the license plate is insufficient, at the moment, the lifting structure controls the upper pressure roller 2 to move downwards, the pressure of the upper pressure roller 2 on the license plate is increased, the pressure of the upper pressure roller 2 on the license plate is transmitted to the license plate, the license plate transmits the pressure to the conveyor belt 3, the conveyor belt 3 transmits the pressure to the lower pressure roller 4, the pressure received by the lower pressure roller 4 is transmitted to the pressure sensor, and when the pressure detected by the pressure sensor is within the specified range, the lifting structure stops moving. Similarly, when the pressure detected by the pressure sensor is larger than the specified range, the lifting structure moves upwards to reduce the pressure of the upper pressure roller 2 on the license plate, and when the pressure is reduced to be within the specified range, the lifting structure stops moving.
Preferably, the lower pressure roller 4 is fixed on a first bracket 5, a second bracket is arranged below the first bracket 5, the first bracket 5 and the second bracket are connected through a vertical slide rail 10, a gap exists between the bottom of the first bracket 5 and the second bracket, and the pressure sensor is located in the gap.
Preferably, the heating cover 1 is provided with a thread hole 19 and a guide hole 18, the lifting structure is a screw rod 15 and a guide rod 9 which are arranged on the hot stamping machine, the thread hole 19 is connected with the screw rod 15 on the hot stamping machine, the guide hole 18 is connected with the guide rod 9 on the hot stamping machine, and the thread hole 19 and the guide hole 18 are arranged in a vertical manner and are parallel to each other in axis.
Preferably, a supporting spring 7 is further arranged between the bottom of the first support 5 and the second support, and a buffer spring 8 is arranged between the pressure sensor and the second support. The supporting spring 7 and the buffer spring 8 are both large elastic springs, and can basically keep no deformation when the first support 5 is stressed, so that the stability of the stress borne by the license plate is ensured, and the buffer spring can play a role in buffering when the descending position of the upper pressure roller 2 is too low.
Preferably, a heating element 17 and a heating medium 27 are arranged in the heating cylinder 21, and the heating medium 27 is heat conduction oil. The silica gel tube 20 is heated through the heat conduction oil, so that the surface temperature of the silica gel tube 20 is more uniform.
Preferably, temperature sensors 16 are disposed on the upper pressure roller 2 and the heating cover 1, a probe of the temperature sensor 16 in the heating cover 1 faces the surface of the upper pressure roller 2, the temperature sensor 16 on the upper pressure roller 2 is electrically connected to heating elements 17 in the heating cylinder 21, and the temperature sensor 16 on the heating cover 1 is electrically connected to the heating elements 17 on the heating cover 1. The temperature sensor 16 is used to control the surface temperature of the upper nip roller 2 in real time, so as to ensure that the surface temperature of the upper nip roller 2 is within a predetermined temperature range of the hot stamping.
Preferably, the upper pressure roller 2 further comprises a silica gel tube 20 sleeved on the heating tube 21 and a heat insulation tube 22 positioned inside the heating tube 21, the heat insulation tube 22 is connected with the heating cover 1 through a shaft, the heat insulation tube 22 comprises an outer tube and an inner tube, and the outer tube and the inner tube are connected through a plurality of ribs 23. The heat insulation cylinder 22 can greatly reduce the temperature transmission to the rotating shaft, and the problem that the bearing is damaged due to overhigh temperature of the rotating shaft is avoided. The outer cylinder, the inner cylinder and the ribs 23 increase the heat dissipation area, and heat is transferred to the inner cylinder through the ribs 23, so that the heat transferred to the inner cylinder is less. The heat shield plate 25 is used to avoid the problem of burning due to the contact of a person with the heating roller from the axial direction. The heating element 17 in the heating cartridge 21 is connected to an external power source via slip rings 28. The heating element 17 in the heating mantle 1 is a meander shape bent back and forth, while the heating element 17 in the heating cylinder 21 is a spiral. The heating element 17 is a heating wire or a PTD heating tube.
Preferably, a heat insulation plate 25 is arranged at one end of the heat insulation cylinder 22, the heat insulation plate 25 is fixed on the heat insulation cylinder 22 through screws, a support body 24 is arranged between the heat insulation plate 25 and the heat insulation cylinder 22, and a gap is formed between the heat insulation plate 25 and the heat insulation cylinder 22 through the support body 24. A gap is arranged between the heat insulation plate 25 and the heat insulation cylinder 22, so that air between the inner cylinder and the outer cylinder can be circulated, and hot air can be conveniently diffused. The support body 24 is a spacer or a boss provided on the heat shield plate 25.
Preferably, be fixed with the carbon tape roll 14 on the carbon tape pivot 12, two one side of a carbon tape pivot 12 in the carbon tape pivot 12 is provided with the first sensor 26 that is used for detecting whether the carbon tape roll 14 is changed, two carbon tape pivots 12 all drive through first servo motor, conveyer belt 3 passes through the drive of second servo motor, first sensor 26, first servo motor and second servo motor all are connected with control system electricity. Because the shape of carbon tape roll 14 is similar with the scotch tape, along with the use of carbon tape, every thermoprint a license plate, carbon tape roll 14 needs the pivoted angle will increase partly, consequently the slew velocity of first servo motor changes at any time, the slew velocity of first servo motor can be calculated according to the diameter of carbon tape roll 14 and is obtained, the carbon tape roll 14 diameter of every specification is fixed, only need the constant change of slew velocity of first servo motor, then can guarantee that the carbon tape can not appear extravagantly at thermoprint in-process at every turn, consequently first servo motor is when following the rotation of second servo motor, slew velocity is unchangeable. When the second servo motor stops rotating, the license plate is indicated to be completely withdrawn from the hot stamping machine after being subjected to hot stamping, at the moment, the first servo motor rotates reversely, so that the carbon tape roll 14 rotates reversely, and the carbon tape roll 14 which is not subjected to hot stamping can be obtained. The rotation angle of the carbon ribbon during rotation is the same as the rotation angle control mode of the carbon ribbon when the carbon ribbon is pulled out from the carbon ribbon roll 14, and the diameter of the carbon ribbon roll 14 is smaller and smaller along with the use of the carbon ribbon, and the rotation angle of the first servo motor is larger and larger. When the carbon ribbon on the carbon ribbon roll 14 is used up, and the carbon ribbon roll 14 is replaced, the first sensor 26 senses the departure of the original carbon ribbon roll 14, a signal is sent to the control system, the control system controls the rotation angle of the first servo motor to reset, the rotation speed of the first servo motor after the carbon ribbon is replaced accords with the moving speed of a license plate, and waste of the carbon ribbon is avoided.
Preferably, the conveyor belt 3 comprises two belt bodies, a second sensor 11 is arranged on the lower side of the conveyor belt 3, the second sensor 11 is located right below a gap between the two belt bodies, and the second sensor 11 is electrically connected with a control system. The second sensor 11 is used for detecting whether a license plate exists on the conveyor belt 3, when the second sensor 11 detects that the license plate exists on the conveyor belt 3, the second sensor 11 senses a signal, the second servo motor is started through the control system, the second servo motor is controlled to start rotating, and when the second sensor 11 does not sense the license plate, the control system controls the second servo motor to rotate by a specified angle, so that the license plate is completely conveyed out of the hot stamping machine.
Preferably, a guide shaft 13 is disposed between the two ribbon rotating shafts 12 and the upper pressure roller 2, and the ribbon stretched from the ribbon roll 14 passes around the guide shaft 13 and then passes around the bottom of the upper pressure roller 2. The guide shaft 13 functions to adjust the angle between the ribbon and the upper nip roller 2.
Preferably, the first sensor 26 and the second sensor 11 are infrared sensors.
Preferably, the carbon tape roll 14 includes a roll 29 and a carbon tape wound on the roll 29, the roll 29 is fixedly connected to the carbon tape rotating shaft 12, a step 31 is provided on the carbon tape rotating shaft 12, the roll 29 is sleeved on the carbon tape rotating shaft 12, one end of the roll 29 abuts against an end surface of the step 31, a pressing plate 30 is provided at the other end of the roll 29, and the pressing plate 30 is fixed on the carbon tape rotating shaft 12 by a bolt and presses the end surface of the roll 29.
Preferably, the first sensor 26 faces an end face of the drum 29. The first servo motor detects the reel 29 and ensures that the detection signal is not affected by the ribbon.
Preferably, the screw 15 and the upper pressure roller 2 are both driven by a servo motor, and the servo motor that drives the upper pressure roller 2 is fixed to the heating cover 1.
Claims (10)
1. The utility model provides a quick heating stabilizes license plate thermoprinting machine of accuse temperature, includes heating mantle (1), goes up pressure roller (2), pressure roller (4), conveyer belt (3), carbon ribbon pivot (12) and control system down, it rotationally sets up in heating mantle (1) to go up pressure roller (2), it is protruding from heating mantle (1) bottom to go up pressure roller (2) bottom, conveyer belt (3) are located pressure roller (2) and press between roller (4) down, respectively be provided with a carbon ribbon pivot (12) on the fore-and-aft direction of the roll direction of last pressure roller (2), its characterized in that: the license plate hot stamping machine is characterized in that a heating cylinder (21) is arranged in the upper pressure roller (2), the heating cover (1) is connected with the license plate hot stamping machine body through a lifting structure, a pressure sensor is arranged at the bottom of the lower pressure roller (4), the signal output end of the pressure sensor is electrically connected with a control system, and the signal output end of the control system is electrically connected with the lifting structure.
2. The license plate hot stamping machine capable of heating rapidly and controlling temperature stably according to claim 1, characterized in that: the lower pressure roller (4) is fixed on a first support (5), a second support (6) is arranged below the first support (5), the first support (5) is connected with the second support (6) through a vertical sliding rail (10), a gap exists between the bottom of the first support (5) and the second support (6), and the pressure sensor is located in the gap.
3. The license plate hot stamping machine capable of heating rapidly and controlling temperature stably according to claim 1, characterized in that: heating cover (1) is last to be provided with screw hole (19) and guiding hole (18), elevation structure is for setting up lead screw (15) and guide bar (9) on the thermoprinting machine, screw hole (19) are connected with lead screw (15) on the thermoprinting machine, guiding hole (18) are connected with guide bar (9) on the thermoprinting machine, parallel and vertical setting of screw hole (19) and guiding hole (18) axis.
4. The license plate hot stamping machine capable of heating rapidly and controlling temperature stably according to claim 2, characterized in that: and a supporting spring (7) is further arranged between the bottom of the first support (5) and the second support (6), and a buffer spring (8) is arranged between the pressure sensor and the second support (6).
5. The license plate hot stamping machine capable of heating rapidly and controlling temperature stably according to claim 1, characterized in that: a heating element (17) and a heating medium (27) are arranged in the heating cylinder (21), and the heating medium (27) is heat conduction oil.
6. The license plate hot stamping machine capable of heating rapidly and controlling temperature stably according to claim 1, characterized in that: the heating device is characterized in that temperature sensors (16) are arranged on the upper pressure roller (2) and the heating cover (1), a probe of the temperature sensor (16) in the heating cover (1) is just opposite to the surface of the upper pressure roller (2), the temperature sensor (16) on the upper pressure roller (2) is electrically connected with a heating element (17) in the heating cylinder (21), and the temperature sensor (16) on the heating cover (1) is electrically connected with the heating element (17) on the heating cover (1).
7. The license plate hot stamping machine capable of heating rapidly and controlling temperature stably according to claim 1, characterized in that: go up pressure roll (2) still including the cover locate a silica gel section of thick bamboo (20) on heating cylinder (21) and be located the inside thermal-insulated section of thick bamboo (22) of heating cylinder (21), thermal-insulated section of thick bamboo (22) are connected with heating mantle (1) through the axle, thermal-insulated section of thick bamboo (22) are including urceolus and inner tube, connect through a plurality of ribs (23) between urceolus and the inner tube.
8. The license plate hot stamping machine capable of heating rapidly and controlling temperature stably according to claim 7, wherein: the heat insulation device is characterized in that a heat insulation plate (25) is arranged at one end of the heat insulation cylinder (22), the heat insulation plate (25) is fixed on the heat insulation cylinder (22) through screws, a supporting body (24) is arranged between the heat insulation plate (25) and the heat insulation cylinder (22), and a gap exists between the heat insulation plate (25) and the heat insulation cylinder (22) due to the supporting body (24).
9. The license plate hot stamping machine capable of heating rapidly and controlling temperature stably according to claim 1, characterized in that: be fixed with carbon tape roll (14), two on carbon tape pivot (12) one side of one carbon tape pivot (12) in carbon tape pivot (12) is provided with first sensor (26) that are used for detecting whether carbon tape roll (14) are changed, two carbon tape pivot (12) are all through first servo motor drive, conveyer belt (3) are through second servo motor drive, first sensor (26), first servo motor and second servo motor all are connected with control system electricity.
10. The license plate hot stamping machine capable of heating rapidly and controlling temperature stably according to claim 3, wherein: the screw rod (15) and the upper pressure roller (2) are driven by a servo motor, and the servo motor for driving the upper pressure roller (2) is fixed on the heating cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110153032.5A CN112776466A (en) | 2021-02-04 | 2021-02-04 | License plate thermoprinting machine of stable accuse temperature of rapid heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110153032.5A CN112776466A (en) | 2021-02-04 | 2021-02-04 | License plate thermoprinting machine of stable accuse temperature of rapid heating |
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|---|---|
| CN112776466A true CN112776466A (en) | 2021-05-11 |
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|---|---|---|---|
| CN202110153032.5A Pending CN112776466A (en) | 2021-02-04 | 2021-02-04 | License plate thermoprinting machine of stable accuse temperature of rapid heating |
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| CN (1) | CN112776466A (en) |
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Application publication date: 20210511 |
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