CN210733544U - Rotary air pressure three-dimensional thermal transfer unit - Google Patents
Rotary air pressure three-dimensional thermal transfer unit Download PDFInfo
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- CN210733544U CN210733544U CN201820674739.4U CN201820674739U CN210733544U CN 210733544 U CN210733544 U CN 210733544U CN 201820674739 U CN201820674739 U CN 201820674739U CN 210733544 U CN210733544 U CN 210733544U
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Abstract
The utility model discloses a three-dimensional heat-transfer seal unit of rotation atmospheric pressure, including at least one atmospheric pressure heat-transfer seal structure, each the atmospheric pressure heat-transfer seal structure includes flexible conveyer belt, orders about flexible conveyer belt circulating rotation's sprocket and gasbag, the gasbag forms an air cavity after installing on flexible conveyer belt, the last heater that installs of flexible conveyer belt. The utility model drives the air bag to rotate through the flexible conveying belt which rotates circularly, so that the processing process of the thermal transfer printing is continuous and uninterrupted, single processing in vacuum thermal transfer printing is replaced, the continuous online production of the thermal transfer printing processing is realized, and the productivity can be greatly improved; the pneumatic heat transfer printing is adopted to replace vacuum heat transfer printing in the heat transfer printing production, heated air is kept in the air bag and can be recycled, and the defects that the heated air is pumped away and most of heat is taken away when vacuum heat transfer printing is vacuumized are overcome.
Description
Technical Field
The utility model relates to a transfer printing mechanism, especially a three-dimensional heat-transfer seal unit of rotation atmospheric pressure in the heat-transfer seal technical research field.
Background
Thermal transfer printing is a technique of printing a designed pattern on a heat-resistant thermal transfer paper, and then transferring the image on the thermal transfer paper to various products or materials by heating and pressing. According to the field, most of China adopts a vacuum heat transfer printing process, a vacuum link is added in the process, and a finished product or a material and heat-resistant heat transfer printing paper printed with patterns are tightly attached together by utilizing the vacuum adsorption effect and then are heated for transfer printing. The following problems mainly exist by adopting the technology:
① the existing thermal transfer printing process adopts a reciprocating type conveying mechanism to convey the work pieces into a thermal transfer printing chamber for vacuum thermal transfer printing, each work can only be carried out for a single work piece independently, the subsequent processing of other work pieces can be carried out only after the whole processing process of the work piece is completed completely, only the batch processing of the single work piece can be realized, the processing speed is low, the efficiency is low, and the continuous, high-speed and mass production of products can not be realized;
② the existing heat transfer printing technology adopts vacuum heat transfer printing, namely, the heat transfer printing paper is contacted with the surface of a workpiece by elastic silica gel, then the air between the silica gel and the workpiece is evacuated by a vacuumizing method, the heat transfer printing paper is tightly adhered to the surface of the workpiece by negative pressure, and then the heat transfer printing is heated again, the transfer printing speed is high by adopting the method, the vacuumizing can take away partial heat transfer printing heat during the transfer printing, the heat transfer printing temperature is changed greatly, the outline of the heat transfer printing pattern is unclear, the transfer printing color is not bright and real, the pattern after the heat transfer printing is not beautiful, the bonding force between the pattern and the surface of the workpiece can be influenced, and the pattern can be fallen off or discolored or faded too early;
③ the existing thermal transfer printing process adopts a method of single-side thermal transfer printing of the workpiece, only one surface of the workpiece can be thermally transferred each time, if double-side transfer printing is needed, the workpiece needs to be turned over for secondary processing to realize the thermal transfer printing processing of the back of the workpiece, the production efficiency is low, and the speed is slow.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rotation atmospheric pressure solid heat-transfer seal unit makes the course of working of heat-transfer seal incessant in succession, replaces the single processing in the vacuum heat-transfer seal, has realized the continuous on-line production of heat-transfer seal processing, productivity gain by a wide margin.
The utility model provides a solution of its technical problem is: the rotary air pressure three-dimensional heat transfer unit comprises at least one air pressure heat transfer structure, each air pressure heat transfer structure comprises a flexible conveying belt, a chain wheel driving the flexible conveying belt to rotate circularly and an air bag, the air bag is arranged on the flexible conveying belt to form an air cavity, and a heater is arranged on the flexible conveying belt.
As a further improvement of the technical scheme, a plurality of sprockets are arranged on the circumference of the chain wheel, a first air inlet control device is arranged on each sprocket, an air inlet pipe connected with the first air inlet control device is arranged in the middle of the chain wheel, a plurality of chain grooves matched with the sprockets are arranged on the inner side surface of the flexible conveying belt, air inlet holes communicated with the air cavity are arranged on each chain groove, and a second air inlet control device is arranged between each chain groove and each air inlet hole.
As a further improvement of the above technical solution, the first intake control device includes a first spring, a first piston, a first hole disposed in the sprocket, and a second hole for the first piston to pass through, one end of the first piston in the first hole is provided with a first piston head, the other end of the first piston is provided with a second piston head, the first spring is sleeved behind the first piston, one end of the first spring is in pressure contact with the second piston head, the other end of the first spring is in pressure contact with an outer surface of the sprocket, the diameter of the second hole is smaller than that of the first hole, and a first pipeline is disposed inside the first piston and the second piston head; the second air inlet control device comprises a second spring, a second piston and a stepped hole arranged in the flexible conveying belt, the stepped hole comprises a third hole close to the first hole, a fourth hole with the diameter being larger than that of the third hole and a fifth hole with the diameter being smaller than that of the fourth hole, the fifth hole is communicated with the chain groove and the fourth hole, the second piston is internally arranged in the fourth hole, one end of the second piston is inserted into the third hole, a third piston head used for plugging the fifth hole is arranged at the other end of the second piston, the second spring is sleeved on the outer surface of the second piston, one end of the second spring is in press contact with the outer surface of the third piston head, the other end of the second spring is in press contact with a shoulder of the fourth hole, and a second pipeline is arranged in the second piston and the third piston head.
As a further improvement of the above technical solution, the number of the air pressure thermal transfer printing structures is two, and after the two air pressure thermal transfer printing structures are stacked, a thermal transfer printing working channel is formed between air bags in the two air pressure thermal transfer printing structures.
As a further improvement of the above technical solution, the heater includes a plurality of heating tubes installed on the flexible conveying belt, two support legs are arranged on each heating tube, two support legs in the same heating tube penetrate through the flexible conveying belt and are respectively connected with the conductive metal wheel, the flexible conveying belt is provided with at least one bakelite cross beam, and two conductive tracks matched with the conductive metal wheel are arranged on the bakelite cross beam.
As a further improvement of the technical scheme, two caulking grooves are respectively arranged on two sides of the flexible conveying belt, and the air chambers are formed after the air bags are arranged on the caulking grooves.
The utility model has the advantages that: the utility model drives the air bag to rotate through the flexible conveying belt which rotates circularly, so that the processing process of the thermal transfer printing is continuous and uninterrupted, single processing in vacuum thermal transfer printing is replaced, the continuous online production of the thermal transfer printing processing is realized, and the productivity can be greatly improved; the pneumatic heat transfer printing is adopted to replace vacuum heat transfer printing in the heat transfer printing production, heated air is kept in the air bag and can be recycled, and the defects that the heated air is pumped away and most of heat is taken away when vacuum heat transfer printing is vacuumized are overcome. The transfer printing effect can be greatly improved, the heat utilization efficiency is improved, and the cost is reduced; two air pressure heat transfer printing structures are arranged in a laminated mode, the heat transfer printing films are better contacted with products by means of extrusion of the air bags arranged up and down, double-side simultaneous heating transfer printing is implemented, the defect that only single-side heat transfer printing can be achieved in the traditional process is overcome, and production efficiency can be greatly improved; still through setting up first controlling means and the second controlling means that admits air, freely adjust the pressure of the interior gas of gasbag, pressure between can accurate control heat-transfer die and the product. The defect that the pressure cannot be adjusted in the traditional process of vacuumizing and pressing is overcome, and transfer printing requirements of different transfer printing pressures can be met.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the middle sprocket of the present invention;
fig. 3 is a cross-sectional view of the present invention;
FIG. 4 is a schematic view showing the air intake of the airbag according to the present invention;
FIG. 5 is a schematic view of the air intake of the middle air bag of the present invention;
fig. 6 is a schematic structural view of two air pressure thermal transfer structures in the present invention.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions.
Referring to fig. 1 to 6, the rotary air pressure three-dimensional thermal transfer unit includes at least one air pressure thermal transfer structure, each of the air pressure thermal transfer structures includes a flexible conveying belt 1, a sprocket 3 driving the flexible conveying belt 1 to rotate circularly, and an air bag 2, the air bag 2 is installed on the flexible conveying belt 1 to form an air cavity, and a heater is installed on the flexible conveying belt 1.
As a further improvement of the above technical solution, a plurality of sprockets 34 are arranged on the circumference of the sprocket 3, a first air inlet control device is arranged on each sprocket 34, an air inlet pipe 8 connected with the first air inlet control device is arranged in the middle of the sprocket 3, a plurality of chain grooves 10 matched with the sprockets 34 are arranged on the inner side surface of the flexible conveyor belt 1, air inlet holes 17 communicated with the air cavity are arranged on each chain groove 10, and a second air inlet control device is arranged between the chain grooves 10 and the air inlet holes 17.
Further as a preferred embodiment, the first intake control device includes a first spring 32, a first piston 31, a first hole disposed in the sprocket 34, and a second hole for the first piston 31 to pass through, one end of the first piston 31 in the first hole is disposed with a first piston head 30, the other end of the first piston 31 is disposed with a second piston head 33, the first spring 32 is sleeved behind the first piston 31, one end of the first spring 32 is in press contact with the second piston head 33, the other end of the first spring 32 is in press contact with the outer surface of the sprocket 34, the diameter of the second hole is smaller than that of the first hole, and a first pipeline is disposed inside the first piston 31 and the second piston head 33; the second air inlet control device comprises a second spring 14, a second piston 15 and a stepped hole arranged in the flexible conveying belt 1, wherein the stepped hole comprises a third hole 16 close to the stepped hole, a fourth hole 13 with the diameter larger than that of the third hole 16 and a fifth hole 11 with the diameter smaller than that of the fourth hole 13, the fifth hole 11 is communicated with the chain groove 10 and the fourth hole 13, the second piston 15 is arranged in the fourth hole 13, one end of the second piston 15 is inserted into the third hole 16, the other end of the second piston 15 is provided with a third piston head 12 for plugging the fifth hole 11, the second spring 14 is sleeved on the outer surface of the second piston 15, one end of the second spring 14 is in pressure contact with the outer surface of the third piston head 12, the other end of the second spring 14 is in pressure contact with the shoulder of the fourth hole 13, and a second pipeline is arranged in the second piston 15 and the third piston head 12. The first hole communicates with the intake pipe 8. The inlet of the first line is arranged on the stem of the first piston 31 and the outlet of the first line is arranged on the second piston head 33. The inlet of the second line is arranged on the third piston head 12 and the outlet of the second line is arranged on the piston rod body of the second piston 15.
Further, as a preferred embodiment, the number of the air pressure thermal transfer printing structures is two, and after the two air pressure thermal transfer printing structures are stacked, a thermal transfer printing working channel is formed between the air bags 2 in the two air pressure thermal transfer printing structures.
Further as a preferred embodiment, the heater includes a plurality of heating tubes 4 installed on the flexible conveying belt 1, two support legs are arranged on each heating tube 4, two support legs in the same heating tube 4 penetrate through the flexible conveying belt 1 and are respectively connected with the conductive metal wheel 5, the flexible conveying belt 1 is provided with at least one bakelite cross beam 7, and two conductive tracks 6 matched with the conductive metal wheel 5 are arranged on the bakelite cross beam 7. Preferably, the electrically conductive tracks 6 are copper tracks.
Further as a preferred embodiment, two caulking grooves are respectively arranged on two sides of the flexible conveying belt 1, and the air chambers are formed after the air bags 2 are installed on the caulking grooves.
The following is an illustration of two air pressure thermal transfer structures mounted to a frame and configured with a roll film transport system.
When the device works, the flexible conveying belt 1 acts, and the workpiece material and the heat transfer films positioned on the upper end face and the lower end face of the workpiece material are clamped and conveyed forwards through the rotary action of the upper air bag 2 and the lower air bag 2. In the conveying process, the gas in the air bag 2 is continuously heated by the heating pipe according to the set temperature, and the heating pipe is controlled to be switched on or off by the electric conduction rail 6 so as to control the heating value. The air bags 2 are inflated through the chain wheels 3, the air pressure of the air bags 2 is controlled through the electromagnetic valves 9, so that the pressure of the upper air bag 2 and the pressure of the lower air bag 2 during thermal transfer printing are accurately controlled, the speed of the upper air bag and the lower air bag is accurately controlled through the servo motor, and synchronization is guaranteed. After the heat transfer printing is finished, the residual materials of the heat transfer printing film which finishes the transfer printing work are automatically wound and recovered, and the package sheets which are successfully transferred are driven by the guide device to be sent out of the equipment so as to be processed in the next step.
The film rolling conveying system is mainly used for continuously conveying the heat transfer film and the rolled sheet. Wherein the upper film and the lower film are thermal transfer rolled films, the two parts are arranged up and down to clamp the rolled sheet in the middle, so that the upper surface and the lower surface of the rolled sheet can be simultaneously subjected to thermal transfer printing during thermal transfer printing, and the three parts are accurately controlled by respective servo motors to ensure synchronous forward conveying during working.
The flexible conveying belt 1 is driven by the chain wheel 3 to move, the air bag 2 is arranged on the flexible conveying belt 1, and the air bag 2 mainly applies pressure to the heat transfer film and the rolled sheet material to carry out compaction operation.
The flexible conveying belt 1 is made of high-temperature-resistant silica gel material embedded reinforced fibers, a chain groove 10 used for transmitting power in cooperation with the chain wheel 3 is arranged in the flexible conveying belt 1, and the air bag 2 is aerated through an air inlet 17 after the chain groove 10 is meshed with the chain wheel 3.
When the air pressure sensor on the electromagnetic valve 9 detects that the air pressure of the air bag 2 is lower than a standard value, the electromagnetic valve 9 is opened to inject compressed air into the air bag 2 through the chain wheel 3; when the air pressure reaches the standard, the electromagnetic valve 9 is closed.
When the sprocket 34 is not engaged with the flexible conveyor belt 1, the first piston 31 is extended upward by the first spring 32, and the inlet of the first pipeline in the first air piston is blocked by the sprocket 3, so that the compressed air cannot pass through. Each chain slot 10 on the flexible conveying belt 1 is also provided with a second air inlet control device, under the action of a second spring 14, a second plug extends downwards, at the moment, an outlet of a second pipeline in the second air piston is blocked by the flexible conveying belt 1, and air in the air bag 2 is isolated from the outside. When the chain wheel 3 and the flexible conveying belt 1 start to be meshed, the chain teeth 34 of the chain wheel 3 approach to the bottom of the chain groove 10, and the second piston head 33 of the first piston 31 is firstly contacted with the third piston head 12 of the second piston 15. Since the first spring 32 has a larger elastic coefficient than the smaller spring, the second spring 14 is deformed first, and then the first piston 31 pushes the second air piston to move toward the air inlet 17 until the outlet of the second pipeline is connected to the air outlet of the flexible conveyor belt 1. As the engagement progresses, the second spring 14 is completely overlapped and cannot be deformed, and at this time, the second piston 15 pushes down the first piston 31, and the first spring 32 starts to be deformed until the inlet in the first pipe is communicated with the first hole, so that the compressed air passed from the solenoid valve 9 can pass through the first hole, the first pipe, the fourth hole 13, the second pipe and the air intake hole 17 in order, and finally, the compressed air is filled into the airbag 2. When the air passage is connected, the air pressure sensor on the electromagnetic valve 9 detects whether the air pressure of the air bag 2 reaches the standard, and if the air pressure does not reach the standard, the air bag is inflated and pressurized.
The air temperature in the air bag 2 is adjusted by the continuous power supply and heating of the heating tube so as to ensure the optimal thermal transfer printing temperature. The flexible conveying belt 1 is provided with heating pipes at equal intervals, the positive and negative electrodes of each heating pipe are provided with conductive metal wheels 5 capable of rolling freely, two electric guide rails 6 are arranged on the rack corresponding to the conductive metal wheels 5, and the two electric guide rails 6 are respectively connected with the positive and negative electrodes of a power supply. The two electric guide rails 6 are arranged on the bakelite crossbeam 7 and isolated from the frame, so that the electric safety is ensured. When the flexible conveying belt 1 moves, the heating tube is driven to move back and forth between the two chain wheels 3, and the heating tube is kept in contact with the electric conduction rail in an upper stroke and a lower stroke so as to ensure stable power supply.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.
Claims (5)
1. The rotary type air pressure three-dimensional thermal transfer printing unit is characterized in that: the air bag type heat transfer printing machine comprises at least one air pressure heat transfer printing structure, wherein each air pressure heat transfer printing structure comprises a flexible conveying belt, a chain wheel and an air bag, the chain wheel drives the flexible conveying belt to rotate circularly, the air bag is arranged on the flexible conveying belt to form an air cavity, and a heater is arranged on the flexible conveying belt.
2. The rotary air pressure three-dimensional thermal transfer unit according to claim 1, wherein: the chain wheel is characterized in that a plurality of chain teeth are arranged on the circumference of the chain wheel, a first air inlet control device is arranged on each chain tooth, an air inlet pipe connected with the first air inlet control devices is arranged in the middle of the chain wheel, a plurality of chain grooves matched with the chain teeth are arranged on the inner side surface of the flexible conveying belt, air inlet holes communicated with the air cavity are arranged on each chain groove, and a second air inlet control device is arranged between each chain groove and each air inlet hole.
3. The rotary air pressure three-dimensional thermal transfer unit according to claim 2, wherein: the first air inlet control device comprises a first spring, a first piston, a first hole arranged in the sprocket and a second hole allowing the first piston to pass through, a first piston head is arranged at one end, located in the first hole, of the first piston, a second piston head is arranged at the other end of the first piston, the first spring is sleeved behind the first piston, one end of the first spring is in press contact with the second piston head, the other end of the first spring is in press contact with the outer surface of the sprocket, the diameter of the second hole is smaller than that of the first hole, and a first pipeline is arranged inside the first piston and the second piston head; the second air inlet control device comprises a second spring, a second piston and a stepped hole arranged in the flexible conveying belt, the stepped hole comprises a third hole close to the first hole, a fourth hole with the diameter being larger than that of the third hole and a fifth hole with the diameter being smaller than that of the fourth hole, the fifth hole is communicated with the chain groove and the fourth hole, the second piston is internally arranged in the fourth hole, one end of the second piston is inserted into the third hole, a third piston head used for plugging the fifth hole is arranged at the other end of the second piston, the second spring is sleeved on the outer surface of the second piston, one end of the second spring is in press contact with the outer surface of the third piston head, the other end of the second spring is in press contact with a shoulder of the fourth hole, and a second pipeline is arranged in the second piston and the third piston head.
4. The rotary air pressure stereo thermal transfer unit according to any one of claims 1 to 3, wherein: the heater comprises a plurality of heating pipes arranged on a flexible conveying belt, two support legs are arranged on each heating pipe, the two support legs in the same heating pipe penetrate through the flexible conveying belt and are connected with the conductive metal wheels respectively, at least one bakelite crossbeam is arranged on the flexible conveying belt, and two conductive tracks matched with the conductive metal wheels are arranged on the bakelite crossbeam.
5. The rotary air pressure stereo thermal transfer unit according to any one of claims 1 to 3, wherein: and two caulking grooves are respectively arranged on two sides of the flexible conveying belt, and the air chamber is formed after the air bag is arranged on the caulking grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820674739.4U CN210733544U (en) | 2018-05-07 | 2018-05-07 | Rotary air pressure three-dimensional thermal transfer unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820674739.4U CN210733544U (en) | 2018-05-07 | 2018-05-07 | Rotary air pressure three-dimensional thermal transfer unit |
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| Publication Number | Publication Date |
|---|---|
| CN210733544U true CN210733544U (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820674739.4U Expired - Fee Related CN210733544U (en) | 2018-05-07 | 2018-05-07 | Rotary air pressure three-dimensional thermal transfer unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN210733544U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108528012A (en) * | 2018-05-07 | 2018-09-14 | 广东水利电力职业技术学院（广东省水利电力技工学校） | Swinging air pressure solid thermal transfer unit |
-
2018
- 2018-05-07 CN CN201820674739.4U patent/CN210733544U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108528012A (en) * | 2018-05-07 | 2018-09-14 | 广东水利电力职业技术学院（广东省水利电力技工学校） | Swinging air pressure solid thermal transfer unit |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200612 |
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| CF01 | Termination of patent right due to non-payment of annual fee |