Heat transfer film printing heating immobilization equipment

Abstract

The utility model discloses a heat transfer film printing heating immobilization device which comprises a machine base, a material conveying line is arranged above the machine base, a curing bin is arranged between the input end and the output end of the material conveying line, one side of the curing bin is connected with a main fan, the main fan is communicated with the curing bin through a main air pipe, and a pressing unit and an oiled paper conveying unit are arranged in the curing bin. The pressing unit comprises a hot pressing block and a driving air cylinder for driving the hot pressing block, and the oiled paper conveying unit comprises an oiled paper unwinding sleeve and an oiled paper winding sleeve and is provided with a winding motor. A branch pipe bin is arranged above the curing bin, a plurality of auxiliary fans are installed in the branch pipe bin to evenly distribute air flow in an air channel, and a heat conduction plate is arranged at the bottom of the curing bin to dissipate heat of the transmission belt. According to the equipment, uniform pressurization, automatic oil paper management and efficient heat dissipation in the heat transfer printing process are achieved, firm attachment of patterns is ensured, the production efficiency and the operation convenience of the equipment are remarkably improved, and the equipment is suitable for large-scale industrial heat transfer printing production.

Description

Technical Field

[0001] The utility model relates to the field of printing and processing equipment, in particular to a thermal transfer film printing, heating and fixing device. Background Art

[0002] With the rapid development of printing technology, thermal transfer printing has been widely used for surface decoration on a variety of materials, including textiles, ceramics, metals, and plastics. Thermal transfer film transfers the design from the film to the substrate surface through heating, enabling high-quality pattern reproduction on a variety of materials. Compared to traditional screen printing and inkjet printing, thermal transfer technology offers advantages such as high efficiency, strong adhesion, and high-definition image clarity, making it highly valuable for industrial production and personalized product customization.

[0003] When heat-transferring textile labels, markings, or logos, initial pressing and secondary pressurization are typically required to ensure complete adhesion of the pattern. During the secondary pressurization, oil-based paper acts as a barrier and protector, preventing direct contact between the hot pressing block and the film or substrate. Rapid cooling is required after pressurization to ensure secure adhesion and a smooth surface. Traditional methods involve manual pressurization, placement of recycled oil-based paper, and ventilation. This is a cumbersome process, suitable only for small-batch manual production and unable to meet the demands of modern manufacturing.

[0004] Therefore, there is an urgent need for an improved thermal transfer film printing heating and fixing equipment that can improve production efficiency and operation convenience while ensuring the quality of pattern transfer to meet production needs. Utility Model Content

[0005] The purpose of this utility model is to provide a thermal transfer film printing heating and fixing device, which can achieve uniform heating, precise positioning, rapid cooling and automatic consumables management during the thermal transfer process, so as to effectively improve the adhesion firmness of the pattern and production efficiency, thereby meeting the demand of modern production for high-quality thermal transfer effects.

[0006] The technical solution adopted by the utility model to solve the above-mentioned problems is: a thermal transfer film printing heating and fixing device, including a machine base, a feed line is arranged above the machine base, a curing chamber is arranged between the input end and the output end of the feed line, a main fan is arranged on one side of the curing chamber, the main fan is connected to the curing chamber through the main air duct, a number of groups of exhaust fans are arranged on both sides of the curing chamber, and a pressing unit is arranged inside, the pressing unit includes a hot pressing block and a driving cylinder for driving the hot pressing block to move up and down, and an oil paper conveying unit is arranged below the pressing unit perpendicular to the conveying direction of the feed line.

[0007] Preferably: the oil paper conveying unit includes an oil paper unwinding sleeve rotatably arranged on one side of the curing bin, and an oil paper winding sleeve rotatably arranged on the other side of the curing bin. The oil paper winding sleeve is axially connected and equipped with a winding motor for driving its rotation, and also includes several groups of limiting sleeves for supporting the oil paper.

[0008] Preferably: the hot pressing block includes a fixed plate and a movable block, the fixed plate is connected and fixed to the piston rod of the driving cylinder, and has folded edges on both sides, the movable block is connected to the bottom of the fixed plate through several groups of springs and slides up and down between the folded edges on both sides, and the hot pressing block is arranged below the movable block.

[0009] Preferably, a heating chamber is provided in the movable block, and an electric heating pipe is provided in the heating chamber.

[0010] Preferably, a branch chamber is provided above the curing chamber, and several groups of auxiliary fans are provided in the branch chamber, the air inlet end of the auxiliary fan is connected to the main air duct, and the air outlet end is connected to the curing chamber.

[0011] Preferably, a heat conducting plate is provided at the bottom of the curing chamber, the heat conducting plate is arranged in the transmission belt and has a plurality of through holes.

[0012] Preferably, the feeding line includes a transmission belt and two sets of transmission drums, both ends of the transmission belt are sleeved on the transmission drums, and the transmission drums are connected to the feeding motor through a gear transmission mechanism.

[0013] Preferably, a plurality of inspection compartments are provided on both sides of the feeding line, each of the inspection compartments is provided with an inspection opening, and a bottom-opening flip cover is hinged at the inspection opening.

[0014] Compared with the prior art, the present invention has the following advantages and effects:

[0015] The utility model utilizes a hot pressing block in the pressing unit, which consists of a fixed plate and a movable block. The movable block is flexibly connected to the fixed plate via a spring, allowing the hot pressing block to smoothly contact the transfer film during the pressing process, effectively and evenly applying pressure and ensuring the secure adhesion of the pattern. Furthermore, the heating chamber within the movable block evenly supplies heat via an electric heating tube, ensuring heating stability and further enhancing the adhesion of the pattern. The oil-paper conveying unit utilizes an oil-paper unwinding sleeve and an oil-paper rewinding sleeve structure, which, in conjunction with a limit sleeve and a rewinding motor, enables automatic release and recovery of the oil-paper, reducing manual operation and preventing adhesion between the oil-paper and the film or substrate during the hot pressing process. This improves the continuity of the pressurization operation and overall work efficiency. The curing chamber utilizes a ventilation system designed with a main fan and an auxiliary fan. The main fan delivers air, the auxiliary fan achieves uniform ventilation, and the exhaust fan exhausts excess air to maintain the temperature and humidity environment within the curing chamber. The heat-conducting plate structure at the bottom of the curing chamber effectively dissipates heat from the transmission belt, allowing it to cool rapidly after the thermal transfer is completed, preventing aging problems caused by overheating of the transmission belt and thus extending the life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of a thermal transfer film printing, heating and fixing device according to an embodiment of the present invention.

[0017] Figure 2 This is a front view of a thermal transfer film printing, heating and fixing device according to an embodiment of the present invention.

[0018] Figure 3 It is a structural schematic diagram of the feeding line of an embodiment of the utility model.

[0019] Figure 4 It is a structural schematic diagram of a curing chamber according to an embodiment of the present invention.

[0020] Figure 5 It is a structural schematic diagram of the oil-paper conveying unit of an embodiment of the present utility model.

[0021] Figure 6 It is a structural schematic diagram of the pressing unit of an embodiment of the utility model.

[0022] Figure numbers: machine base 11, feeding line 12, curing chamber 13, main fan 14, main air duct 15, exhaust fan 16, pressing unit 17, hot pressing block 18, driving cylinder 19, oil paper conveying unit 20, oil paper unwinding sleeve 21, oil paper winding sleeve 22, winding motor 23, limiting sleeve 24, transmission belt 31, transmission cylinder 32, feeding motor 33, maintenance chamber 34, maintenance port 35, flip cover 36, branch chamber 41, auxiliary fan 42, heat conduction plate 43, through hole 44, fixed plate 51, movable block 52, piston rod 53, folding edge 54, spring 55, heating chamber 56, electric heating tube 57. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0024] Example: See Figure 1 - Figure 4 This embodiment relates to a thermal transfer film printing and heat fixation device, specifically designed to improve pattern adhesion and processing efficiency during the thermal transfer process. The device comprises a base 11, above which is located a feed line 12 for transporting printed and hot-stamped fabric. The feed line 12 intermittently conveys the fabric. A curing chamber 13 is located between the input and output ends of the feed line 12, which is used to heat and fix the thermal transfer film. A main fan 14 is located on one side of the curing chamber 13. This fan 14 communicates with the interior of the curing chamber 13 via a main air duct 15, providing ventilation. Furthermore, exhaust fans 16 are located on both sides of the curing chamber 13 to effectively remove excess gas and moisture during the heating process, ensuring air circulation within the curing chamber 13 and enhancing ventilation and heat dissipation. Furthermore, a pressing unit 17 is located within the curing chamber 13 to pressurize the thermal transfer film (the feed line 12 is paused during the pressing process), enhancing pattern adhesion. Lamination unit 17 consists of a heat press block 18 and a drive cylinder 19. The cylinder drives heat press block 18 up and down, ensuring that heat press block 18 contacts the transfer film surface under appropriate pressure, thereby improving the adhesion of the pattern. Below lamination unit 17, perpendicular to the direction of feed line 12, is an oil-paper conveyor unit 20 for conveying oil-paper to protect the pattern during the hot pressing process and prevent it from sticking to heat press block 18.

[0025] See also Figure 3 The feed line 12 consists of a transmission belt 31 and a transmission drum 32. The ends of the transmission belt 31 are looped over the transmission drum 32 and connected to a feed motor 33 via a gear transmission mechanism, ensuring a stable transmission speed. Several maintenance compartments 34 are located on both sides of the feed line 12. These compartments have access hatches 35, each hinged with a downward-opening flap 36 for easy access. These hatches facilitate maintenance and troubleshooting, improving operational stability and efficiency.

[0026] See also Figure 4A branch bin 41 is provided above the curing bin 13, and several groups of auxiliary fans 42 are arranged in the branch bin 41. The air inlet end of the auxiliary fan 42 is connected to the main air duct 15, and the air outlet end is connected to the inside of the curing bin 13. The air flow is evenly distributed in the curing bin 13 through the auxiliary fan 42, forming a stable ventilation environment. The transmission belt 31 is prone to aging when used at high temperature for a long time, so it needs to be cooled. In this embodiment, a heat conducting plate 43 is provided at the bottom of the curing bin 13. The heat conducting plate 43 is located in the transmission belt 31 and is in contact with the upper side of the transmission belt 31. A number of through holes 44 are opened on the heat conducting plate 43, which increases the heat dissipation (contact with the air) area. With the help of the air flow in the curing bin 13, the transmission belt 31 is effectively cooled.

[0027] See also Figure 5 In this embodiment, the oil paper conveying unit is arranged on both sides of the curing bin 13, including an oil paper unwinding sleeve 21 located on one side of the curing bin 13, and an oil paper rewinding sleeve 22 located on the other side of the curing bin 13. The oil paper unwinding sleeve 21 is used to fit the oil paper cylinder, and is used to release the oil paper when the equipment is started. The oil paper is stably supported and conveyed to the bottom of the pressing unit 17 through the limiting sleeve 24 to provide isolation protection. The oil paper rewinding sleeve 22 is connected to the rewinding motor 23, which drives the oil paper from the oil paper unwinding sleeve 21 to the oil paper rewinding sleeve 22. After the transfer is completed, the oil paper can be automatically rewound, realizing the switching of oil paper, reducing manual intervention, and improving production efficiency.

[0028] See also Figure 6 The heat press block 18 comprises a fixed plate 51 and a movable block 52. The fixed plate 51 is fixedly connected to the piston rod 53 of the drive cylinder 19. The cylinder's expansion and contraction drive the fixed plate 51 up and down, thereby controlling the heat press block 18's application to the transfer film. Folding edges 54 are provided on either side of the fixed plate 51, and the movable block 52 slides up and down between the two folding edges 54 to ensure a stable travel of the movable block 52 during the application process, preventing scratches on the fabric pattern and damaging or disrupting product quality. The movable block 52 is connected to the fixed plate 51 via several sets of springs 55, providing flexible support and applying uniform pressure to the pattern, thereby improving the stability of the application. The heat press block 18 is mounted below the movable block 52, opposite the contact surface of the transfer film. A heating chamber 56 is located within the movable block 52, which houses an electric heating pipe 57, providing a constant heat source to ensure uniform heating of the transfer film by the heat press block 18. The electric heating pipe 57 can adjust the temperature according to process requirements to ensure a uniform temperature distribution within the heating chamber 56.

[0029] In addition, the pressing unit 17 in the curing chamber 13 in this embodiment can be provided with multiple groups, and the same number of oil paper conveying units 20 as the pressing unit 17 are correspondingly provided, which can simultaneously perform pressurization operations on multiple groups of fabric patterns to meet mass production needs.

[0030] The above contents described in this specification are merely examples of the present invention. Those skilled in the art of the present invention may make various modifications, additions, or substitute similar methods to the specific embodiments described, as long as they do not deviate from the contents of this specification or exceed the scope defined by the claims, and shall fall within the scope of protection of the present invention.

Claims

1. A thermal transfer film printing heating and fixing device, characterized in that: It includes a machine base, a feed line is arranged above the machine base, a curing bin is arranged between the input end and the output end of the feed line, a main fan is arranged on one side of the curing bin, the main fan is connected to the curing bin through the main air duct, several groups of exhaust fans are arranged on both sides of the curing bin, and a pressing unit is arranged inside, the pressing unit includes a hot pressing block and a driving cylinder for driving the hot pressing block to move up and down, and an oil paper conveying unit is arranged below the pressing unit perpendicular to the conveying direction of the feed line.

2. The thermal transfer film printing heating and fixing device according to claim 1, characterized in that: The oil paper conveying unit includes an oil paper unwinding sleeve rotatably arranged on one side of the curing bin, and an oil paper winding sleeve rotatably arranged on the other side of the curing bin. The oil paper winding sleeve is axially connected and equipped with a winding motor that drives it to rotate, and also includes several groups of limiting sleeves for supporting the oil paper.

3. The thermal transfer film printing heating and fixing device according to claim 1, characterized in that: The hot pressing block includes a fixed plate and a movable block. The fixed plate is connected and fixed to the piston rod of the driving cylinder and has folded edges on both sides. The movable block is connected to the bottom of the fixed plate through several groups of springs and slides up and down between the folded edges on both sides. The hot pressing block is arranged below the movable block.

4. The thermal transfer film printing heating and fixing device according to claim 3, characterized in that: A heating chamber is provided in the movable block, and an electric heating pipe is provided in the heating chamber.

5. The thermal transfer film printing heating and fixing device according to claim 1, characterized in that: A branch chamber is provided above the curing chamber, and several groups of auxiliary fans are provided in the branch chamber. The air inlet end of the auxiliary fan is connected to the main air duct, and the air outlet end is connected to the curing chamber.

6. The thermal transfer film printing heating and fixing device according to claim 5, characterized in that: The bottom of the curing chamber is provided with a heat conducting plate, which is arranged in the transmission belt and has a plurality of through holes.

7. The thermal transfer film printing heating and fixing device according to claim 1, characterized in that: The feeding line includes a transmission belt and two sets of transmission drums. Both ends of the transmission belt are sleeved on the transmission drums, and the transmission drums are connected to the feeding motor through a gear transmission mechanism.

8. The thermal transfer film printing, heating and fixing device according to claim 7, characterized in that: A plurality of groups of maintenance bins are arranged on both sides of the material conveying line. The maintenance bins are provided with maintenance openings, and bottom-opening flip covers are hinged at the maintenance openings.

9. The thermal transfer film printing, heating and fixing device according to claim 1, characterized in that: The pressing units are arranged in a number of groups along the conveying direction of the feeding line, and corresponding groups of oil-paper conveying units are arranged.

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