A cable high speed thermal transfer printer with color band protection
By using an air compressor blowing guide tube and PLC control in the cable hot press printing machine, the problems of metering accuracy and ribbon breakage were solved, printing efficiency and production continuity were improved, and efficient printing with consistent marking intervals was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 上海鹰准信息技术有限公司
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-07
AI Technical Summary
Existing cable hot press printing machines suffer from problems such as low metering accuracy, inaccurate printing of markings, easy breakage of ribbons, and low production efficiency, which are particularly prominent during high-speed printing.
An air compressor is used to blow air onto the ribbon passing through a rectangular guide tube. The ribbon is guided by the guide tube and controlled by a PLC to keep the speed of the electric ribbon unwinding mechanism and the rewinding mechanism consistent. Flexible connections are added, and photoelectric through-beam sensors are used to monitor the ribbon position to ensure metering accuracy and reduce ribbon jitter.
It improves the metering accuracy of the printing unit, ensures consistent marking intervals, reduces ribbon breakage, increases printing production efficiency, and avoids downtime in extreme cases through a temporary ribbon unwinding mechanism, thus enhancing production continuity.
Smart Images
Figure CN224472258U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary equipment technology for cable production, and in particular to a high-speed hot press printing machine for cables with ribbon protection function. Background Technology
[0002] After cable production, various markings (such as cable specifications, manufacturer information, etc.) need to be printed at regular intervals on the outer end of the insulation layer using a hot press printing machine. In existing cable hot press printing machines, the ribbon on one end of the machine is unwound by an electric ribbon unwinding mechanism (the center of the ribbon reel is fixedly mounted on the power output shaft of the electric ribbon unwinding mechanism). Then, the ribbon is guided by multi-stage guide wheels, and the cable passes under the printing disc of the rotating printing unit (printing equipment). The printing disc in the printing unit heats up, and the ribbon prints the corresponding text on the outer side of the printing disc onto the surface of the cable (moving below the ribbon). After printing, the cable and ribbon are wound up by an electric ribbon winding mechanism and an electric cable winding mechanism at the other end of the equipment (one end of the equipment also has an electric cable unwinding mechanism).
[0003] Although existing cable hot press printing machines meet the work requirements to a certain extent, they also have some shortcomings due to structural limitations. Specifically, when the ribbon moves to the bottom of the printing plate (printing wheel) to print the cable via the unwinding mechanism, its movement is powered by the friction of multiple guide rollers pressing the cable (pressing the ribbon onto the cable, the ribbon moves as the cable moves, and the electric ribbon unwinding mechanism unwinds the ribbon; after printing, the cable and ribbon are respectively wound up by the electric ribbon winding mechanism and the electric cable winding mechanism at the other end of the equipment). In reality, friction is related to factors such as pressure and coefficient of friction. Factors such as start-up and shutdown during production, cable movement, and resistance during equipment operation (especially the guide rollers between the electric ribbon unwinding mechanism and the printing unit, where the above problems are more prominent due to their different heights and angles) can cause deviations in the meter counting process of the printing unit, resulting in low accuracy, uncontrollable printing length, and inaccurate markings printed on the cable surface (for example, normally various markings are printed every 1 meter, but due to deviations in the meter counting process, markings are printed at intervals of less than 1 meter or more than 1 meter, resulting in unattractive product markings). Furthermore, due to the relatively low strength of the ribbon, when it passes through the guide wheels (lead rollers) between the electric ribbon unwinding mechanism and the printing unit, and the constant unwinding speed of the electric ribbon unwinding mechanism is relatively slow (for example, the winding speed of the electric ribbon rewinding mechanism and the unwinding speed of the electric ribbon unwinding mechanism are inconsistent), there is still a chance that the ribbon will break. Finally, there is no limiting mechanism for the ribbon during its movement. When the ribbon moves at a relatively fast speed, if the equipment vibrates or other reasons cause the ribbon to swing back and forth too much (such as high speed), it cannot be guaranteed that the ribbon will effectively adhere to the cable surface. This is also the reason why the printing speed of existing cable hot press printing machines cannot be too fast (current technology generally produces printing speeds below 120 MPM (meters per minute), thus resulting in relatively low production efficiency). Utility Model Content
[0004] To overcome the shortcomings of existing cable hot press printing machines, which suffer from structural limitations as described in the background art, this utility model provides a high-speed cable hot press printing machine with ribbon protection. Based on the main body of the cable hot press printing machine, and with the combined action of related mechanisms, an air compressor blows air onto the ribbon passing through a rectangular guide tube, guiding the ribbon through the guide tube. Under the action of a PLC, the speed of the ribbon released by the electric ribbon unwinding mechanism is always consistent with the speed of the electric ribbon rewinding mechanism. This ensures the metering accuracy of the printing unit's meter counting mechanism as much as possible, resulting in consistent spacing of the printed cable product markings. It also prevents the electric ribbon rewinding mechanism from directly pulling the ribbon, reducing the chance of ribbon breakage, and minimizing the problem of poor printing quality caused by ribbon vibration. Furthermore, it improves printing production efficiency.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A high-speed hot press printing machine for cables with ribbon protection includes a main body comprising an electric cable unwinding mechanism, an electric ribbon unwinding mechanism, an electric cable winding mechanism, an electric ribbon winding mechanism, a printing device, and a PLC; a photoelectric through-beam sensor; a guide tube; an air compressor; a regulating valve; a fixed plate; guide wheels; a tensioning mechanism; a ribbon alignment mechanism; and a temporary ribbon unwinding mechanism. Multiple guide wheels are included. The photoelectric through-beam sensor includes a transmitter and a receiver. The lower end of the fixed plate is fixedly mounted on the frame. The first guide wheel is rotatably mounted on the upper left front of the fixed plate. The second and third guide wheels are rotatably mounted at a left-right interval on the upper front center of the fixed plate. The fourth and fifth guide wheels are rotatably mounted at a left-right interval on the lower right front of the fixed plate. The tensioning mechanism... The structure includes a rotating arm and a spring. The upper end of the rotating arm is rotatably mounted between the fourth and fifth guide wheels. The two ends of the spring are rotatably mounted on one side of the rotating arm and the lower end of the fourth rotating wheel, respectively. The sixth guide wheel is rotatably mounted on the lower end of the rotating arm. The regulating valve is fixedly mounted on the upper part of the second and third guide wheels. The upper end of the guide tube has an open structure, and the lower end is fixedly mounted with a breathable mesh. There are mounting holes on both sides of the guide tube. The transmitter and receiver of the photoelectric beam sensor are fixedly mounted on the outside of the two openings, respectively. The guide tube is vertically distributed and fixedly mounted on the lower end of the second and third guide wheels. The air compressor is mounted under the frame. The exhaust pipe of the air compressor's air tank is connected to the air inlet pipe of the regulating valve. The ribbon centering mechanism is mounted on the front left end of the fixed plate, and the temporary ribbon unwinding mechanism is mounted on the upper right side of the fixed plate.
[0007] Furthermore, a nozzle is fixedly installed at the lower end of the exhaust port of the regulating valve.
[0008] Furthermore, the upper and lower ends of the second and third guide wheels are respectively on the same horizontal plane.
[0009] Furthermore, the transmitter and receiver of the photoelectric through-beam sensor are laterally aligned on the same plane, with the transmitting surface of the transmitter aligned with the receiving surface of the receiver.
[0010] Furthermore, the distance between the second and third guide wheels and the width between the left and right sides of the guide tube are greater than the thickness of the folded ribbon.
[0011] Furthermore, the front and rear width of the guide tube is greater than the width of the ribbon.
[0012] Furthermore, the front-to-back spacing of the ribbon alignment mechanism is greater than the front-to-back width of the ribbon.
[0013] Furthermore, the temporary ribbon unwinding mechanism includes a motor reduction gear, a support plate, and guide wheels A. The left end of the support plate is fixedly installed on the upper right side of the fixed plate. The motor reduction gear is fixedly installed on the rear right side of the support plate, and the front part of the motor reduction gear's shaft rotates outside the front end of the support plate. The two guide wheels A are respectively rotatably installed on the upper left side of the fifth guide wheel and the lower right side of the sixth guide wheel.
[0014] Compared with the prior art, the advantages of this utility model are: (1) Based on the cable hot press printing machine body, under the joint action of related mechanisms, the air compressor blows air into the ribbon passing through the rectangular guide tube, and the ribbon is guided through the guide tube. This is equivalent to the ribbon and the printing equipment and the electric ribbon winding mechanism being in a flexible connection. Under the action of PLC, the speed of the ribbon released by the electric ribbon unwinding mechanism is always consistent with the winding speed of the electric ribbon winding mechanism. This can ensure the metering accuracy of the metering mechanism of the printing unit as much as possible, and the spacing of the printed cable product markings is consistent, and prevents (2) The probability of the ribbon being pulled directly by the electric ribbon winding mechanism and the ribbon breaking; (3) Due to the limiting effect of the guide tube on the ribbon, and the ribbon speed released by the electric ribbon unwinding mechanism can be consistent with the winding speed of the electric ribbon winding mechanism, the problem of poor printing quality caused by ribbon shaking is reduced, and the printing production efficiency is also improved; (4) In extreme cases, when the ribbon on the ribbon reel installed by the electric ribbon unwinding mechanism is not replaced in time after use, the temporary ribbon unwinding mechanism can also provide the printing equipment with the ribbon required for printing, preventing the adverse effects of long downtime on production. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] Figure 1 This utility model is shown in the overall structural diagram.
[0017] Figure 2 , 3 A partial structural diagram of this utility model. Detailed Implementation
[0018] Figure 1 , 2As shown in Figure 3, a high-speed hot press printing machine for cables with ribbon protection includes a cable hot press printing machine body 3 with an electric cable unwinding mechanism (not shown in the figure), an electric ribbon unwinding mechanism 1, an electric cable winding mechanism (not shown in the figure), an electric ribbon winding mechanism (not shown in the figure), a printing device 2, a PLC (not shown in the figure), and other necessary components; a photoelectric beam sensor 4; a rectangular guide tube 5; an air compressor (not shown in the figure); a regulating valve 6; a fixing plate 7; a guide wheel; a tensioning mechanism 9; a ribbon centering mechanism 10; and a temporary ribbon unwinding mechanism 11. The power input terminals for the electric cable unwinding mechanism, the electric ribbon unwinding mechanism 1, the electric cable winding mechanism, the electric ribbon winding mechanism, the electric printing device 2, and the temporary ribbon unwinding mechanism 11 are also included. The power input terminals of the ribbon unwinding mechanism 12, the photoelectric sensor 4 (the 24V DC power output terminal of the PLC), and the multiple power output terminals of the PLC are connected by wires. There are six guide wheels. The photoelectric sensor includes a transmitter 41 and a receiver 42. The signal output terminal of the receiver 42 of the photoelectric sensor and the signal input terminal of the PLC are connected by wires. The lower end of the fixed plate 7 is fixedly mounted on the frame 21 between the electric ribbon unwinding mechanism and the printing equipment 2. The first guide wheel 81 is rotatably mounted on the upper left front part of the fixed plate 7. The second guide wheel 82 and the third guide wheel 83 are rotatably mounted at a distance from each other on the left and right sides on the upper front middle part of the fixed plate 7. The fourth guide wheel 84 and the fifth guide wheel... The fourth guide wheel 84 and the fifth guide wheel 85 are rotatably mounted on the lower right front end of the fixed plate 7. The tensioning mechanism includes a rotating arm 91 and a spring 92 (the spring pulls the rotating arm to move to the left and fits the ribbon, thus tensioning the ribbon 12). The upper end of the rotating arm 92 is rotatably mounted on the front end of the fixed plate 7 between the fourth guide wheel 84 and the fifth guide wheel 85. The two ends of the spring 92 are rotatably mounted on the middle left side of the rotating arm 91 and the front end of the fixed plate 7 at the lower end of the fourth rotating wheel 84, respectively. The sixth guide wheel 86 is rotatably mounted on the lower front end of the rotating arm 91. The regulating valve 6 is fixedly mounted on the front end of the fixed plate 7 on the upper side between the middle of the second guide wheel 62 and the third guide wheel 63, and the exhaust pipe of the regulating valve 6 is located between the second guide wheel 62 and the third guide wheel 63. Between the upper middle of the three guide wheels 63, the upper end of the rectangular guide tube 5 has an open structure, and the lower end is fixedly installed with a breathable mesh 52. The middle of both sides of the guide tube 5 has a mounting hole 51, and the two openings 51 are laterally in the same plane. The transmitter head 41 and receiver head 42 of the photoelectric beam sensor are respectively fixedly installed on the outside of the two openings 51. The guide tube 5 is vertically distributed and fixedly installed at the front end of the lower fixed plate between the second guide wheel 82 and the third guide wheel 83. The air compressor is installed at the lower end of the frame 21. The exhaust pipe of the air compressor's air tank and the air inlet pipe of the regulating valve 6 are connected by a pipe. The ribbon centering mechanism 10 is installed at the front left end of the fixed plate 7, and the temporary ribbon unwinding mechanism 11 is installed at the right end of the fixed plate 7.
[0019] Figure 1 , 2 As shown in Figure 3, a flat-mouthed nozzle 61 is fixedly installed at the lower end of the exhaust port of the regulating valve. The upper and lower ends of the second guide wheel 82 and the third guide wheel 83 are respectively on the same horizontal plane. The transmitter head 41 and receiver head 42 of the photoelectric beam sensor are laterally aligned on the same plane, with the transmitting surface of the transmitter head 41 aligned with the receiving surface of the receiver head 42. The distance between the second guide wheel 82 and the third guide wheel 83, and the width between the left and right sides of the guide tube 5, are greater than the thickness of the folded ribbon 12. The front-to-back width of the guide tube 5 is greater than the width of the ribbon 12. The ribbon centering mechanism 10 is a "U"-shaped fixing seat. The right end of the fixing seat 10 is fixedly installed in the middle of the left front side of the fixing plate 7, and the front-to-back distance of the fixing seat 10 is slightly greater than the front-to-back width of the ribbon 12. The temporary ribbon unwinding mechanism 11 includes a motor reduction gear (not shown in the figure), a support plate 111, and guide wheels A112. The left end of the support plate 111 is fixedly installed on the upper right side of the fixed plate 7. The motor reduction gear is fixedly installed on the rear right side of the support plate 111, and the shaft of the motor reduction gear extends forward through the shaft hole at the right end of the support plate 111 and rotates to be located outside the front end of the support plate 111. A limiting ring (not shown in the figure) with an outer diameter larger than the outer diameter of the center hole of the ribbon reel is fixedly installed on the shaft located on the front side of the support plate 111. A limiting plate 113 with an outer diameter larger than the outer diameter of the center hole of the ribbon reel is threadedly installed on the front end of the shaft. Two guide wheels A112 are respectively rotatably installed on the upper left end of the fifth guide wheel 85 and the lower right end of the sixth guide wheel 86 on the front side of the fixed plate 7. A positioning plate 13 (for limiting the ribbon) is fixedly installed on both sides of the guide wheels and guide wheels A111. The distance between the two positioning plates 13 is slightly larger than the width of the ribbon 12.
[0020] Figure 1 , 2 As shown in Figure 3, this novel invention is based on the cable hot press printing machine body 3. The ribbon on one end of the ribbon reel of the cable hot press printing machine body 3 is unwound by an electric ribbon unwinding mechanism (the middle part of the ribbon reel is fixedly sleeved on the power output shaft of the electric ribbon unwinding mechanism). Then, the ribbon is guided by multi-stage guide wheels (guide wheels) and the cable passes under the printing disc 21 rotating in the printing unit 2 (printing equipment). The printing disc 21 of the printing unit heats up and prints the corresponding characters on the outside of the printing disc 21 onto the surface of the cable (moving below the ribbon) through the ribbon 12. After printing, the cable and ribbon are respectively wound up by an electric ribbon winding mechanism and an electric cable winding mechanism at the other end of the equipment (there is also an electric cable unwinding mechanism at one end of the equipment). The above are existing mature technologies, and this application will not elaborate further.
[0021] Figure 1 , 2As shown in Figure 3, before the actual operation of this new type of equipment, the operator takes the first end of the ribbon 12 on the ribbon reel at the front end of the electric ribbon winding mechanism and passes it over the left inner side of the ribbon centering mechanism 10, the lower end of the first guide wheel 81, the second guide wheel 82 and the third guide wheel 83, the lower end of the fourth guide wheel 84, the upper end of the fifth guide wheel 85 and the upper end of the sixth guide wheel 86. Then the ribbon is guided by the multi-stage guide wheels and the cable passes under the printing reel 21 rotating in the printing unit 2 (printing equipment). Subsequently, the cable hot press printing machine body 3 can normally perform printing operations on the cable. Before printing, the operator opens the regulating valve 6 (the regulating handle adjusts the amount of compressed air output from the flat-mouth nozzle). The compressed air, with a high flow rate, is blown through the flat-mouth nozzle 61 at the lower end of the regulating valve, propelling the ribbon 12 into the guide tube 5. Specifically, as the ribbon 12 passes through guides 82 and 83, the compressed air blows it into the guide tube 5. The flowing air is then discharged through the vent mesh 52 below the rectangular guide tube 5, ensuring that a portion of the ribbon 12 remains within the guide tube 5. When the beam emitted by the photoelectric sensor 4's transmitter 41 is blocked by the ribbon 12, it is then... The receiver 42 outputs a signal to the signal input terminal of the PLC. The PLC controls the motor of the electric ribbon unwinding mechanism to temporarily lose power and stop unwinding the ribbon 12. Specifically, when the ribbon 12 is not high enough inside the guide tube due to the electric ribbon winding mechanism, the ribbon no longer blocks the transmitter 41. The PLC controls the motor of the electric ribbon unwinding mechanism to regain power and unwind the ribbon 12. In this way, the PLC can control the unwinding speed of the electric ribbon unwinding mechanism, realizing the effect of the motor of the electric ribbon unwinding mechanism being controlled by the PLC according to the cable running speed (intermittent unwinding). Through the above technical solution, this new invention uses an air compressor to blow air onto the ribbon passing through the rectangular guide tube 5, and the ribbon is guided by the guide tube 5. This is equivalent to a flexible connection between the ribbon 12, the printing equipment 2, and the electric ribbon winding mechanism. Under the action of the PLC, the speed of the ribbon released by the electric ribbon unwinding mechanism is always consistent with the winding speed of the electric ribbon winding mechanism, which can ensure the metering accuracy of the metering mechanism of the printing unit as much as possible, and the spacing of the printed cable product markings is consistent. It also prevents the electric ribbon winding mechanism from directly pulling the ribbon and reducing the probability of ribbon breakage. Due to the limiting effect of the guide tube 5 on the ribbon 12, and the fact that the speed of the ribbon released by the electric ribbon unwinding mechanism is consistent with the winding speed of the electric ribbon winding mechanism, the problem of poor printing quality caused by ribbon 12 vibration is reduced, and the printing production efficiency is also improved.In extreme cases, when the ribbon on the ribbon reel installed in the electric ribbon unwinding mechanism is used up and cannot be replaced in time, the operator moves the ribbon reel around the shaft of the motor reducer of the temporary ribbon unwinding mechanism, then pulls out the front end of the ribbon, and passes it around the left end of the first guide wheel A112, the right end of the guide wheel 85, the left end of the guide wheel 86, and the upper end of the second guide wheel A111. Then, the ribbon is guided by multi-stage guide wheels and passes under the printing reel 21 rotating in the printing unit 2 (printing equipment). The subsequent cable hot press printing machine body 3 can then perform normal printing operations on the cable. Through the above, the temporary ribbon unwinding mechanism can provide the printing equipment with the ribbon required for printing, preventing the adverse effects of prolonged downtime on production (at this time, the operator can quickly replace the ribbon reel in the electric ribbon unwinding mechanism and restore normal production).
[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.
[0023] Furthermore, it should be understood that although this specification describes the embodiments, the embodiments do not necessarily contain only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A high-speed hot-press printing machine for cables with ribbon protection function, comprising a cable hot-press printing machine body having an electric cable unwinding mechanism, an electric ribbon unwinding mechanism, an electric cable winding mechanism, an electric ribbon winding mechanism, a printing device, and a PLC, a photoelectric through-beam sensor, a guide tube, an air compressor, a regulating valve, a fixing plate, a guide wheel, a tensioning mechanism, a ribbon centering mechanism, a fixing plate, and a temporary ribbon unwinding mechanism; characterized in that... The device comprises multiple guide wheels, and the photoelectric through-beam sensor includes a transmitter and a receiver. The lower end of the fixed plate is fixedly mounted on the frame. The first guide wheel is rotatably mounted on the upper left front of the fixed plate. The second and third guide wheels are rotatably mounted at a distance from each other on the upper front center of the fixed plate. The fourth and fifth guide wheels are rotatably mounted at a distance from each other on the lower right front of the fixed plate. The tensioning mechanism includes a rotating arm and a spring. The upper end of the rotating arm is rotatably mounted between the fourth and fifth guide wheels, and both ends of the spring are rotatably mounted on one side of the rotating arm and the lower end of the fourth rotating wheel, respectively. The sixth guide wheel rotates... The regulating valve is fixedly installed on the upper part of the second and third guide wheels. The upper end of the guide tube has an open structure, and the lower end is fixedly installed with a breathable mesh. There are mounting holes on both sides of the guide tube. The transmitter and receiver of the photoelectric beam sensor are fixedly installed on the outside of the two openings respectively. The guide tube is vertically distributed and fixedly installed on the lower end of the second and third guide wheels. The air compressor is installed under the frame. The exhaust pipe of the air compressor's air tank is connected to the air inlet pipe of the regulating valve. The ribbon centering mechanism is installed on the front left end of the fixed plate, and the temporary ribbon unwinding mechanism is installed on the upper right side of the fixed plate.
2. The high-speed hot-press printing machine for cables with ribbon protection as described in claim 1, characterized in that, A nozzle is fixedly installed at the lower end of the exhaust port of the regulating valve.
3. A high-speed hot-press printing machine for cables with ribbon protection as described in claim 1, characterized in that, The upper and lower ends of the second and third guide wheels are on the same horizontal plane.
4. A high-speed hot-press printing machine for cables with ribbon protection as described in claim 1, characterized in that, The transmitter and receiver of the photoelectric through-beam sensor are horizontally aligned on the same plane, with the transmitting surface of the transmitter aligned with the receiving surface of the receiver.
5. A high-speed hot-press printing machine for cables with ribbon protection as described in claim 1, characterized in that, The distance between the second and third guide wheels and the width between the left and right sides of the guide tube are greater than the thickness of the ribbon after folding.
6. A high-speed hot-press printing machine for cables with ribbon protection as described in claim 1, characterized in that, The front and rear width of the guide tube is greater than the width of the ribbon.
7. A high-speed hot-press printing machine for cables with ribbon protection as described in claim 1, characterized in that, The front-to-back spacing of the ribbon alignment mechanism is greater than the front-to-back width of the ribbon.
8. A high-speed hot-press printing machine for cables with ribbon protection as described in claim 1, characterized in that, The temporary ribbon unwinding mechanism includes a motor reduction gear, a support plate, and guide wheels A. The left end of the support plate is fixedly installed on the upper right side of the fixed plate. The motor reduction gear is fixedly installed on the rear right side of the support plate, and the front part of the motor reduction gear's shaft rotates outside the front end of the support plate. The two guide wheels A are respectively rotatably installed on the upper left side of the fifth guide wheel and the lower right side of the sixth guide wheel.