Rubber roller type plane heat transfer printing equipment

Abstract

The utility model relates to the technical field of textile industry heat transfer printing equipment, in particular to rubber roller type plane heat transfer printing equipment which comprises a machine table, a transfer printing rubber roller, a material table, a discharging device and a detection device, and the transfer printing rubber roller is installed above the machine table through an installation frame and can move in the vertical direction relative to the machine table; the material table is located below the transfer printing rubber roller and can move in the first horizontal direction relative to the transfer printing rubber roller. The discharging device is used for horizontally conveying a heat transfer printing film between the transfer printing rubber roller and the material table; the detection device is used for detecting the angle of a to-be-printed plane of a printing stock on the material table, the detection device comprises detection rods and a photoelectric switch, the two detection rods are movably inserted into the mounting frame in the vertical direction, and the transmitting end and the receiving end of the photoelectric switch are arranged on the two detection rods respectively. Before printing, the flatness of the to-be-printed plane of the printing stock can be detected, it is guaranteed that the to-be-printed plane is parallel to the heat transfer printing film, and the accuracy of the positions of patterns or characters in the transfer printing process is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of heat transfer equipment in the textile industry, specifically a rubber roller type flat heat transfer equipment. Background Technology

[0002] A roller-type flatbed heat transfer printing machine is a widely used machine for transferring patterns and text onto flat materials using heat transfer technology. Its main components include a heating system, a pressure system, and a control system. The heated rollers apply appropriate pressure and heat to the heat transfer film covering the surface of the substrate, allowing the pattern or text on the film to be accurately transferred and fixed onto the surface of the substrate.

[0003] However, in practice, to ensure the accuracy of heat transfer, the surface of the substrate to be printed must be parallel to the heat transfer film. This is because only under these conditions can the roller effectively and accurately transfer the pattern or text on the heat transfer film to the designated position on the substrate. However, in practical applications, due to the varying shapes of substrates, it is difficult to guarantee that all surfaces to be printed will be perfectly parallel to the heat transfer film. This non-parallelism may lead to positional deviations of the pattern or text during the transfer process, affecting the quality of the final product. To address the above problems, this utility model proposes a roller-type flat surface heat transfer device. Utility Model Content

[0004] The purpose of this invention is to provide a roller-type flat heat transfer printing device to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution:

[0006] A roller-type flatbed heat transfer printing device includes:

[0007] Machine tool;

[0008] A transfer roller is mounted above the machine base via a mounting bracket and is vertically movable relative to the machine base;

[0009] A material table located below the transfer roller and movable relative to the transfer roller in a first horizontal direction;

[0010] A feeding device for horizontally conveying heat transfer film between the transfer roller and the material table;

[0011] The device includes a detection device for detecting the angle of the printing plane of the substrate on the material stage. The detection device includes detection rods and a photoelectric switch. The two detection rods are vertically movably inserted into the mounting frame. The transmitting end and receiving end of the photoelectric switch are respectively disposed on the two detection rods.

[0012] Optionally, the mounting bracket is rotatable in the horizontal direction.

[0013] Optionally, the material platform includes an upper platform body, a lower platform body, and an angle adjuster disposed between the upper platform body and the lower platform body. The upper platform body and the lower platform body are rotatably connected by a universal connector, and the angle adjuster is used to adjust the angle of the upper platform body in the horizontal direction.

[0014] Optionally, the angle adjuster consists of a plurality of vertically extendable linear drive devices distributed around the rotatable connection position of the upper platform and the lower platform.

[0015] Optionally, a distance sensor is installed on each of the two detection rods, and a blocking component corresponding to the position of the distance sensor is fixedly installed on the mounting bracket. The distance sensor is connected to the linear drive device through a controller.

[0016] Optionally, the bottom of the lower platform is slidably connected to the top of the machine platform along a first horizontal direction via a first slide rail, and a rotary drive device is fixedly installed on the machine platform, the rotary drive device being connected to the lower platform via a reciprocating lead screw.

[0017] Optionally, the feeding device includes a feeding frame, a feeding roller, a receiving roller, and guide rollers. The feeding frame is movable relative to the machine platform along a second horizontal direction that is parallel to the first horizontal direction. The feeding roller and the receiving roller are rotatably disposed at both ends of the feeding frame. Two pairs of guide rollers are provided, and the two pairs of guide rollers are arranged on both sides of the material platform.

[0018] Compared with the prior art, this utility model provides a roller-type planar heat transfer printing device, which has the following beneficial effects:

[0019] 1. This utility model, through the combined use of a machine, a transfer roller, a material table, a feeding device, and a detection device, can detect the flatness of the substrate to be printed before printing, ensuring that the substrate to be printed is parallel to the heat transfer film, improving the accuracy of the position of the pattern or text during the transfer process, and thus improving product quality.

[0020] 2. When the printing surface of the substrate is tilted, the distance sensor can measure the change in distance between the upper end of each detection rod and the blocking component. The controller determines the tilt direction of the printing surface based on the magnitude of the distance change, and then controls the corresponding linear drive device to automatically adjust the angle between the upper platform and the printing surface.

[0021] 3. The mounting bracket of this utility model can rotate in the horizontal direction, which enables multi-angle flatness detection of the printing surface of the substrate in the horizontal direction, thereby improving the accuracy of the detection. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the detection device and transfer roller of this utility model;

[0024] Figure 3 This is a schematic diagram of the main structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the material platform of this utility model.

[0026] In the diagram: 1. Machine base; 2. Transfer roller; 3. Frame; 4. Mounting frame; 5. First cylinder; 6. Heat transfer film; 7. Detection rod; 8. Transmitter; 9. Receiver; 10. First motor; 11. Connecting frame; 12. Universal connector; 13. Upper platform; 14. Lower platform; 15. Shielding component; 16. Second cylinder; 17. Abutment wheel; 18. Distance sensor; 19. First slide rail; 20. Second motor; 21. Reciprocating screw; 22. Feed rack; 23. Feed roller; 24. Take-up roller; 25. Guide roller; 26. Second slide rail; 27. Third cylinder; 28. Third motor; 29. ​​Fourth motor; 30. Perforation. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example: Please refer to Figure 1 and Figure 3 According to an embodiment of this utility model, a roller-type planar heat transfer printing device is provided, including a machine base 1, a transfer roller 2, a material table, a feeding device, and a detection device. The transfer roller 2 is mounted above the machine base 1 via a mounting frame 4 and is vertically movable relative to the machine base 1. Figure 1 In the middle, the vertical direction is up and down. The transfer roller 2 has a built-in resistance heating element, which can be connected to an external power source through an electric slip ring. A first cylinder 5 is fixedly installed above the machine base 1 via the frame 3. The first cylinder 5 is used to drive the mounting frame 4 and the transfer roller 2 to move vertically. The transfer roller 2 is rotatably connected to the mounting frame 4. The material table is located below the transfer roller 2 and is movable relative to the transfer roller 2 in the first horizontal direction. The material table is used to place the substrate to be printed. Figure 1In the middle, the first horizontal direction is the left-right direction; the feeding device is used to horizontally convey the heat transfer film 6 between the transfer roller 2 and the material table; the detection device is used to detect the angle of the printing plane of the substrate on the material table; specifically, such as Figure 2 As shown, the detection device includes detection rods 7 and a photoelectric switch. Two detection rods 7 are vertically movably inserted into the mounting frame 4. The transmitting end 8 and receiving end 9 of the photoelectric switch are respectively disposed on the two detection rods 7. When the two detection rods 7 are naturally suspended on the mounting frame 4, the lower ends of the two detection rods 7 are at the same vertical height, and at this time, the receiving end 9 of the photoelectric switch can stably receive the light signal from the transmitting end 8.

[0029] In the use of the roller-type flat heat transfer equipment with the above structure, the substrate is placed on the material table with the printing surface facing the transfer roller 2, and the printing surface is kept as parallel as possible to the heat transfer film 6. At this time, the lower ends of the two detection rods 7 are aligned with the vertical distance of the heat transfer film 6, and the receiving end 9 of the photoelectric switch can receive a stable light signal from the transmitting end 8. Next, the first cylinder 5 drives the mounting frame 4 to move downwards, causing the lower ends of the two detection rods 7 to contact the printing surface. If the printing surface is tilted in the horizontal direction, the transmitting end 8 and receiving end 9 on the two detection rods 7 will be misaligned, causing the light signal received by the receiver to weaken or be completely interrupted. Once the receiver detects the change in the light signal, the photoelectric switch will generate an output signal. This output signal can be used to stop the action of the first cylinder 5. At this time, the operator needs to adjust the angle of the substrate on the material table to reduce the probability of printing position deviation. However, if the detection device detects that the printing surface is not tilted in the horizontal direction, the feeding device will horizontally convey the heat transfer film 6 between the transfer roller 2 and the material table. Then, the first cylinder 5 continues to drive the mounting frame 4 to move downwards. The transfer roller 2 at the bottom of the mounting frame 4 presses the heat transfer film 6 against the printing surface of the substrate and controls the material table to move back and forth in the first direction. By applying pressure and heating, the pattern on the heat transfer film 6 is transferred to the printing surface of the substrate, thus completing the printing. Therefore, the roller-type flat heat transfer equipment described above can detect the flatness of the substrate before printing, ensuring that the substrate and the heat transfer film 6 are parallel to each other, improving the accuracy of the position of the pattern or text during the transfer process, and thus improving product quality.

[0030] like Figure 2As shown, in some embodiments, the mounting bracket 4 is rotatable in the horizontal direction. This allows for multi-angle flatness detection of the substrate's surface to be printed in the horizontal direction. Specifically, the output end of the first cylinder 5 is fixedly mounted on the connecting bracket 11, and a first motor 10 is installed between the connecting bracket 11 and the mounting bracket 4. The stator of the first motor 10 is fixed to the bottom of the connecting bracket 11, and the rotor of the first motor 10 is fixedly connected to the mounting bracket 4. The connecting bracket 11 has elongated through holes 30 arranged vertically, and the light emitted from the emitting end 8 of the photoelectric switch passes through the through holes 30 to reach the receiving end 9. In other embodiments, the first motor 10 can also be replaced by a rotary cylinder.

[0031] like Figure 4 As shown, in some embodiments, the material platform includes an upper platform body 13, a lower platform body 14, and an angle adjuster disposed between the upper platform body 13 and the lower platform body 14. The upper platform body 13 and the lower platform body 14 are rotatably connected via a universal connector 12. The angle adjuster is used to adjust the angle of the upper platform body 13 in the horizontal direction. Preferably, the angle adjuster consists of multiple vertically retractable linear drive devices distributed around the rotatable connection position of the upper platform body 13 and the lower platform body 14. The linear drive device is a second cylinder 16, the cylinder body of which is fixed to the lower platform body 14. The extension and retraction of the four second cylinders 16 can be controlled independently, and the angle adjustment of the upper platform body 13 in the horizontal direction can be achieved by controlling the extension and retraction of the second cylinders 16. To reduce wear between the output end of the second cylinder 16 and the bottom of the upper platform body 13, a rotatable abutment wheel 17 is installed on the output end of the second cylinder 16.

[0032] Furthermore, in order to automate the angle adjustment, such as Figure 2 and Figure 4 As shown, a distance sensor 18 is installed on each of the two detection rods 7. The distance sensor 18 can be any one of an ultrasonic distance sensor 18, a laser distance sensor 18, or an infrared distance sensor 18. A blocking component 15 corresponding to the position of the distance sensor 18 is fixedly installed on the mounting bracket 4. The distance sensor 18 is connected to the linear drive device through a PLC controller. With this configuration, when the printing surface of the substrate is tilted, the distance sensor 18 can measure the change in distance between the upper end of each detection rod 7 and the blocking component 15. The controller determines the tilt direction of the printing surface based on the magnitude of the distance change, and then controls the corresponding linear drive device to automatically adjust the angle between the upper platform 13 and the printing surface.

[0033] In some embodiments, the bottom of the lower stage 14 is slidably connected to the top of the machine base 1 along a first horizontal direction via a first slide rail 19. A rotary drive device is fixedly installed on the machine base 1, and the rotary drive device is connected to the lower stage 14 via a reciprocating lead screw 21. Specifically, the rotary drive device is a second motor 20. After the second motor 20 is energized, it can drive the reciprocating lead screw 21 to rotate. The reciprocating lead screw 21 drives the material stage to move back and forth along the first horizontal direction. Through the reciprocating movement of the material stage and the squeezing action of the transfer roller 2, the pattern on the heat transfer film 6 can be transferred to the printing surface of the substrate.

[0034] In some embodiments, the feeding device includes a feeding frame 22, a feeding roller 23, a receiving roller 24, and a guide roller 25. The feeding frame 22 is movable relative to the machine base 1 along a second horizontal direction, which is the same as the first horizontal direction. The feeding frame 22 is slidably connected to the top of the machine base 1 along the second horizontal direction via a second slide rail 26. A third cylinder 27 is mounted on the top of the machine base 1 to drive the feeding frame 22 to move along the second horizontal direction. Figure 1 In the middle, the second horizontal direction is the front-to-back direction. The feeding roller 23 and the receiving roller 24 are respectively rotatably set at both ends of the feeding frame 22. The feeding roller 23 is driven to rotate by the third motor 28, and the receiving roller 24 is driven to rotate by the fourth motor 29. Two pairs of guide rollers 25 are provided, and the two pairs of guide rollers 25 are arranged on both sides of the material table. With this arrangement, when the flatness of the printing surface of the substrate is detected by the detection device, the heat transfer film 6 on the feeding device is first removed from above the material table by the third cylinder 27, exposing the material table for detection. After the detection is completed, the feeding device is reset by the third cylinder 27, so that the heat transfer film 6 is placed on the transfer roller 2 and the substrate, and printing can then be carried out. By setting two pairs of guide rollers 25, the heat transfer film 6 passing above the material table can always be kept in a horizontal state, improving the printing effect.

[0035] Working Principle: First, place the substrate on the material table, ensuring the printing surface faces the transfer roller 2, and try to ensure the printing surface is parallel to the heat transfer film 6. At this time, the lower ends of the two detection rods 7 are vertically aligned with the heat transfer film 6, and the receiving end 9 of the photoelectric switch can receive a stable light signal from the transmitting end 8. Next, the first cylinder 5 drives the mounting bracket 4 to move downwards, causing the lower ends of the two detection rods 7 to contact the printing surface. If the printing surface is tilted horizontally, the transmitting end 8 and receiving end 9 on the two detection rods 7 will be misaligned, causing the light signal received by the receiver to weaken or be completely interrupted. Once the receiver detects the change in light signal, the photoelectric switch will generate an output signal. This output signal can be used to stop the action of the first cylinder 5. At the same time, the distance sensor 18 can measure the distance change between the upper end of each detection rod 7 and the blocking component 15. The controller determines the printing surface based on the magnitude of the distance change. The tilt direction of the surface is controlled, and the corresponding linear drive device is then used to adjust the angle between the upper platform 13 and the printing surface. However, if the detection device detects that the printing surface is not tilted in the horizontal direction, the feeding device will horizontally convey the heat transfer film 6 between the transfer roller 2 and the material table. Then, the first cylinder 5 continues to drive the mounting frame 4 to move down. The transfer roller 2 at the bottom of the mounting frame 4 presses the heat transfer film 6 against the printing surface of the substrate and controls the material table to move back and forth in the first direction. By applying pressure and heating, the pattern on the heat transfer film 6 is transferred to the printing surface of the substrate, thereby completing the printing.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pad printing flat heat transfer printing apparatus characterized by comprising: The application relates to a heat transfer printing machine. The application relates to a heat transfer printing machine. The application relates to a heat transfer printing machine. The application relates to a heat transfer printing machine. The application relates to a heat transfer printing machine. The application relates to a heat transfer printing machine.

2. The pad printing apparatus according to claim 1, wherein: The application relates to a heat transfer printing machine.

3. The pad printing apparatus according to claim 2, wherein: The application relates to a heat transfer printing machine.

4. The pad printing apparatus according to claim 3, wherein: The application relates to a heat transfer printing machine.

5. The pad printing apparatus according to claim 4, wherein: The application relates to a heat transfer printing machine.

6. The rubber roll flat heat transfer printing apparatus according to claim 3, characterized by: The application relates to a heat transfer printing machine.

7. The pad printing apparatus according to any one of claims 1 to 6, characterized in that: The application relates to a heat transfer printing machine. The application relates to a heat transfer printing machine. The application relates to a heat transfer printing machine. The application relates to a heat transfer printing machine. The application relates to a heat transfer printing machine. The application relates to a heat transfer printing machine. The application relates to a heat transfer printing machine. The application relates to a heat transfer printing machine. The application relates to a heat transfer printing machine. The application relates to a heat transfer printing machine. The application relates to a heat transfer printing machine. The application relates to a heat transfer printing machine. The application relates to a heat transfer printing machine. The application relates to a heat transfer printing machine. 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