Strong penetration digital printing heat transfer machine with mercerizing function

Abstract

The application provides a strong penetration digital printing heat transfer machine with a pile straightening function, a front treatment pile straightening area composed of a temperature-adjustable electric heating roller and a pile straightening soft brush roller is arranged, the pile cloth can be preheated and softened and the pile direction can be straightened in advance, and the disadvantages of rough edges and blurred patterns in printing are completely overcome; a strong penetration adsorption device is arranged behind a pressing area, and the heating roller and the cylinder pressing roller work cooperatively, a strong downward penetration traction force can be applied to the ink, and the problems of white spots and uneven color in conventional printing are eliminated; meanwhile, a pile straightening knife and a flat brush post-treatment mechanism are arranged at a discharge end, the pile that is bent over due to high temperature and high pressure after printing can be quickly lifted and combed, the pile returns to a fluffy and soft natural state, a subsequent complicated and expensive secondary fluffing treatment process is avoided, the production cycle is greatly shortened, and the energy consumption and labor cost are significantly reduced.

Description

Technical Field

[0001] This invention relates to the field of digital printing processing technology, and in particular to a high-penetration digital printing heat transfer machine with a flocking function. Background Technology

[0002] With the rapid development of the modern textile printing and dyeing industry and the increasing demands of consumers for textile quality, digital printing technology, especially heat transfer technology, has been widely applied in the printing and processing of clothing, home textiles, and various decorative fabrics due to its significant advantages such as rich colors, fine patterns, environmental friendliness, and adaptability to small-batch, multi-variety production. Against this backdrop, suede materials, such as velvet, coral fleece, polar fleece, and flannel, are highly favored by the market due to their unique three-dimensional texture and soft touch, becoming an important processing target for digital printing. Currently, the industry generally uses ordinary heat transfer equipment to transfer patterns onto these suede fabrics. The conventional workflow involves bonding the patterned printing paper to the unfinished suede fabric and placing it in the heated and pressurized zone of the machine. Under high temperature and pressure, the ink sublimates, then diffuses and penetrates into the fabric fibers, completing the printing process.

[0003] However, existing conventional heat transfer equipment exhibits several serious technical defects and process bottlenecks when processing suede materials. Firstly, suede materials inherently possess long fibers and a naturally flattened appearance. Current equipment lacks a mechanism for effective pre-treatment and straightening of the suede fibers during the pre-printing feeding stage. This results in rough fibers directly affecting the uniformity of the printing contact during heat transfer, leading to rough, blurred, or even indistinct edges on the final printed pattern, severely impacting printing accuracy. Secondly, traditional heat transfer methods rely primarily on simple physical heating and pressure, lacking a forced method to guide the ink deeper into the suede fibers. This drawback causes dye to accumulate primarily on the surface of the suede, resulting in white gaps in the print and uneven color saturation, directly affecting the aesthetics of the finished product. Furthermore, excessive heating and pressure can easily cause permanent flattening and hardening of wool or synthetic fiber fibers, resulting in a stiff and rough feel on the finished product. Furthermore, to improve the hand feel of printed suede fabrics, existing production processes often require an additional "secondary fluffing" or "finishing" step after printing. This not only significantly extends the production cycle and increases energy and labor costs but also increases factory space requirements and workflow, severely restricting the production efficiency of printing companies. In addition, some suede fabrics often undergo irreversible shrinkage and deformation due to heat before and after the printing process. Conventional equipment, with only a single printing function, cannot meet the high-temperature pre-shrinking and setting requirements before printing, resulting in poor equipment flexibility.

[0004] Therefore, there is an urgent need in this field to develop an integrated CNC heat transfer equipment that can combine preheating and combing of fabric before printing, strong penetration processing during printing, and rapid fluffing treatment after printing, while also taking into account multiple fabric feeding modes to meet the dual needs of pre-shrinking and printing. This is intended to solve the problems of existing equipment when dealing with velvet materials, such as blurry printed patterns, uneven penetration, stiff feel, complicated processes, and lack of pre-shrinking function, and to truly achieve high-quality, high-efficiency, and low-cost velvet digital printing operations. Summary of the Invention

[0005] The purpose of this invention is to provide a high-penetration digital printing heat transfer machine with a flocking function to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following solution: This invention provides a digital heat transfer printing machine with a pile-finishing function, comprising a pre-treatment pile-finishing area, a transfer penetration area, and a post-discharge finishing area arranged sequentially along the fabric travel direction; The pre-treatment pile-sorting area includes a pile roll, an adjustable temperature electric heating roller, and a soft brush roller for preheating and physical combing the pile to be processed, respectively. The transfer penetration zone includes a heating roller, a pressure roller mechanism that cooperates with the heating roller, and a strong penetration adsorption device located after the heat pressing process to perform forced penetration printing; The finishing area after material output includes a shaving knife and a flat brush to fluff and comb the printed pile surface.

[0007] Preferably, the pressure roller mechanism includes a first pressure roller, a second pressure roller, and a first cylinder and a second cylinder corresponding to drive the first pressure roller and the second pressure roller; a first lower guide roller and a second lower guide roller for inputting colored paper and velvet cloth are provided in front of the pressure roller mechanism.

[0008] Preferably, the transfer penetration area further includes a heating roller blanket, a first blanket guide roller, a second blanket guide roller, a third blanket guide roller, a fourth blanket guide roller, a fifth blanket guide roller, and a sixth blanket guide roller, as well as a motor, gears, and chains for driving the fifth blanket guide roller and the sixth blanket guide roller; the heating roller blanket is wound around the surface of the heating roller, and each blanket guide roller is used to guide the velvet and the decal to the pressing area.

[0009] Preferably, the strong penetration adsorption device is connected to the cylinder and bracket to form a negative pressure adsorption structure; when the fabric passes through the strong penetration adsorption device, the adsorption device applies a downward negative pressure to the fabric, forcing the printing ink to penetrate downward into the interior of the velvet fibers.

[0010] Preferably, the post-discharge finishing area further includes a first adjusting frame and a second adjusting frame; the pile-strapping knife is installed on the first adjusting frame; the flat brush is installed on the second adjusting frame; the pile-strapping knife is used to lift the pile that has fallen down after pressing, and the flat brush is used to smooth and comb the pile surface after lifting.

[0011] Preferably, the pretreatment pile-forming area further includes a guide roller, a first platform, a second platform, and a third platform, forming a smooth conveying channel that guides the pile fabric from the pile roll through an adjustable temperature electric heating roller and a soft brush roller into the transfer penetration area.

[0012] Preferably, the post-discharge finishing area further includes a post-discharge guide roller, a fabric feeding frame, a fabric sizing frame, a fabric guide trough, a fabric feeding conveyor belt and conveyor belt rollers, and a fabric drop trough; the finished fabric after printing and finishing is guided by the post-discharge guide roller and enters the fabric drop trough from the fabric feeding frame via the fabric feeding conveyor belt.

[0013] Preferably, the device also has a high-temperature pre-shrinking mode fabric feeding route; in this fabric feeding route, the fleece or pre-treated fabric passes through the device from above, avoiding the heating roller and pressure roller mechanism, and falls directly from the fabric output frame into the fabric dropping trough after being heated at high temperature.

[0014] Preferably, the adjustable temperature electric heating roller is located upstream of the combing soft brush roller. The fabric to be processed is first heated and softened by the adjustable temperature electric heating roller, and then combed in the direction of the nap by the combing soft brush roller.

[0015] Preferably, the equipment further includes a waste paper winding mechanism, which includes a waste paper trough, a waste paper roll, and a guide roller for receiving and collecting waste paper that has separated from the velvet after printing; the bottom of the equipment is provided with a support worktable with machine feet.

[0016] The present invention achieves the following beneficial technical effects compared to the prior art: This invention provides a high-penetration digital printing heat transfer machine with a pile-finishing function, featuring a compact structure, integrated functions, and excellent printing effect. The pre-treatment pile-finishing zone, composed of an adjustable-temperature heating roller and a soft-bristle brush roller, preheats and softens the pile fabric and straightens the pile direction in advance, completely overcoming the drawbacks of rough printing edges and blurred patterns. A high-penetration adsorption device is installed behind the heat-pressing zone, working in conjunction with the heating roller and the cylinder pressure roller to apply a strong downward penetrating force to the ink, eliminating the problems of white showing and uneven color in conventional printing. Simultaneously, the pile-finishing function at the discharge end... The finishing mechanism, consisting of a blade and a flat brush, can quickly lift and comb the pile that has flattened due to high temperature and pressure after printing, restoring it to its fluffy and soft natural state. This eliminates the need for a tedious and expensive secondary fluffing process, significantly shortening the production cycle and reducing energy consumption and labor costs. In addition, by optimizing the internal fabric path, the equipment also integrates a pre-shrinking channel that bypasses the pressing zone, enabling high-temperature pre-shrinking of the base fabric. It also boasts excellent versatility and can effectively solve the quality problems caused by heat deformation of fabrics before and after printing, significantly enhancing the practical application value and market competitiveness of the equipment in the printing and processing field. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of the high-penetration digital printing heat transfer machine with pile-forming function provided by the present invention. Detailed Implementation

[0019] The serial numbers assigned to components in this document, such as "first," "second," etc., are merely used to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] The purpose of this invention is to provide a high-penetration digital printing heat transfer machine with a flocking function to solve the problems existing in the prior art.

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1: like Figure 1 As shown, this invention provides a high-penetration digital printing heat transfer machine with a pile-finishing function. Its main structure, arranged sequentially along the fabric's travel direction, includes a pre-treatment pile-finishing area, a transfer penetration area, and a post-discharge finishing area. The pre-treatment pile-finishing area, located at the left end of the machine, is the first station for pre-treatment of the pile fabric. After the pile fabric 2 to be processed on the pile roll 1 is drawn out, it first passes through an adjustable-temperature heating roller 3. At this time, the adjustable-temperature heating roller 3 adjusts to a suitable temperature according to the specific characteristics of the pile material, performing preliminary heating pre-treatment on the pile fabric 2 to soften the fibers. Subsequently, the preheated pile fabric 2 enters the soft-bristle combing roller 4, which powerfully combs the surface of the pile fabric 2, straightening the natural direction of the pile. After combing, the pile fabric 2 is pulled by the guide roller 5 and smoothly passes through the first platform 6, the second platform 7, and the third platform 8 in sequence. Through the cooperation of this series of platforms and guide rollers, the pile fabric can maintain uniform tension and a smooth surface before entering the downstream core area, effectively preventing printing blurring caused by roughness.

[0025] After the pre-felt processing is completed, the felt enters the transfer and penetration zone in the middle. The transfer paper 52 on the transfer paper roll 51, after being precisely guided by the guide roller 50, becomes the printed fabric 33 to be fused. The felt 2 and the printed fabric 33 are precisely joined before entering the heat pressing mechanism, and the two are guided by the first lower guide roller 54 and the second lower guide roller 55 to enter the area where the heating roller 14 is located. In order to ensure the uniformity and continuity of heat pressing, the heating roller 14 is surrounded by a heating roller blanket 9, which operates in a closed loop under the joint traction of the first blanket guide roller 11, the second blanket guide roller 12, the third blanket guide roller 13, the fourth blanket guide roller 25, the fifth blanket guide roller 31, and the sixth blanket guide roller 32. At the heat pressing station, the equipment is equipped with a first pressure roller 22 and a second pressure roller 23. The first pressure roller 22 is driven by the first cylinder 21, and the second pressure roller 23 is driven by the second cylinder 24. When the fabric passes through the heating roller 14, the cylinder pushes the pressure roller to apply high pressure, achieving a powerful heat transfer. Simultaneously, the heat-pressed waste paper 34 automatically separates from the fabric and is rolled into the waste paper roll 35, eventually falling into the waste paper collection trough 41 below, achieving environmentally friendly waste recycling. To avoid the problem of insufficient penetration in traditional printing, after the heat pressing process, the fabric continues to move forward at the strong penetration adsorption device 38. This strong penetration adsorption device 38 is located after the heat pressing process, and is equipped with a cylinder 39 and a bracket 40 below it, forming a stable and reliable high negative pressure adsorption structure. When the fabric passes through this strong penetration adsorption device 38, the negative pressure forces the printing ink to penetrate deep into the fibers of the fabric, completely eliminating the drawbacks of white areas in the print and uneven color distribution. After completing the strong penetration process, the fabric continues to move backward under the traction of the lower fabric conveyor belt roller 36 and the power drive of the conveyor belt motor 37.

[0026] Subsequently, the fabric enters the finishing area at the right end. Due to the previous high pressure and high temperature heating, the pile surface is prone to flattening and stiffening; therefore, this invention specifically includes a finishing mechanism. The fabric first passes through a pile-straightening knife 43 mounted on the first adjusting frame 42, which initially lifts and combs the flattened pile upwards. Next, the fabric passes through a flat brush 45 mounted on the second adjusting frame 44. The flat brush 45, in conjunction with the pile-straightening knife 43, performs a more meticulous smoothing operation, thereby quickly restoring the pile surface to its original fluffy and soft state. The finished fabric after finishing is led out by the rear fabric guide roller 10. The finished fabric is then guided by the rear fabric exit roller 15 and the fabric exit frame 16, while being controlled by the fabric swaying frame 17. Under the action of the fabric swaying connecting rod 18, the fabric swaying frame 17 guides the fabric evenly through the guide groove 19 onto the fabric exit conveyor belt 46 and the conveyor belt roller 47. After being output via the fabric conveyor belt 46, the fabric eventually falls smoothly into the fabric drop trough 48 below and is collected in the fabric delivery cart 26.

[0027] In addition, to adapt to different working conditions, the equipment also has a completely different second operating route, namely the high-temperature pre-shrinking mode. When the user only needs to pre-shrink and shape the raw fleece or any fabric at high temperature without printing, the fabric does not need to enter the pressing area, but directly enters along the cross-path at the top of the machine. In this mode, the fabric passes through the high-temperature area from above the machine to complete the pre-shrinking process. Afterwards, the pre-shrinked fabric falls directly from above the machine into the fabric drop trough 48, and then into the fabric delivery cart 26, achieving multi-purpose functionality. The entire machine has a support worktable 53 with machine feet 27 at the bottom, which stably supports the entire device. The power source of the equipment is provided by the motor 28, which transmits power to the fifth blanket guide roller 31 and the sixth blanket guide roller 32 through gears 29 and chains 30, realizing the coordinated operation of all transmission rollers in the entire device. Meanwhile, the equipment is also equipped with an adjusting wheel 49 for adjusting the tension of the fabric, while the outer casing 20 encloses the aforementioned cylinder, pressure roller and other key transmission components, providing good protection and shielding.

[0028] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0029] It should be noted that the components mentioned in the above embodiments are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0030] This invention has illustrated its principles and implementation methods using specific examples. The descriptions of these embodiments are merely illustrative of the method and its core ideas; furthermore, those skilled in the art will recognize that modifications may be made to the specific implementation methods and application scope based on the principles of this invention. Therefore, the content of this specification should not be construed as limiting the invention.

Claims

1. A high-penetration digital printing heat transfer machine with a pile-finding function, characterized in that, It includes a pre-treatment pile-forming area, a transfer and penetration area, and a post-discharge finishing area arranged sequentially along the fabric's direction of travel. The pre-treatment pile-sorting area includes a pile roll, an adjustable temperature electric heating roller, and a soft brush roller for preheating and physical combing the pile to be processed, respectively. The transfer penetration zone includes a heating roller, a pressure roller mechanism that cooperates with the heating roller, and a strong penetration adsorption device located after the heat pressing process to perform forced penetration printing; The finishing area after material output includes a shaving knife and a flat brush to fluff and comb the printed pile surface.

2. The high-penetration digital printing heat transfer machine with pile-finding function according to claim 1, characterized in that, The pressure roller mechanism includes a first pressure roller, a second pressure roller, and a first cylinder and a second cylinder corresponding to drive the first pressure roller and the second pressure roller; a first lower guide roller and a second lower guide roller for inputting colored paper and velvet cloth are provided in front of the pressure roller mechanism.

3. The high-penetration digital printing heat transfer machine with pile-finding function according to claim 1, characterized in that, The transfer and penetration area also includes a heating roller blanket, a first blanket guide roller, a second blanket guide roller, a third blanket guide roller, a fourth blanket guide roller, a fifth blanket guide roller, and a sixth blanket guide roller, as well as a motor, gears, and chains for driving the fifth and sixth blanket guide rollers; the heating roller blanket is wound around the surface of the heating roller, and each blanket guide roller is used to guide the velvet and the decorative paper to the pressing area.

4. The high-penetration digital printing heat transfer machine with pile-finding function according to claim 1, characterized in that, The strong permeation adsorption device is connected to the cylinder and bracket to form a negative pressure adsorption structure. When the fabric passes through the strong penetration adsorption device, the adsorption device applies a downward negative pressure to the fabric, forcing the printing ink to penetrate downward into the interior of the velvet fibers.

5. The high-penetration digital printing heat transfer machine with pile-finding function according to claim 1, characterized in that, The post-discharge finishing area also includes a first adjustment frame and a second adjustment frame; the pile-strapping knife is installed on the first adjustment frame; the flat brush is installed on the second adjustment frame; the pile-strapping knife is used to lift the pile that has fallen down after pressing and ironing, and the flat brush is used to smooth and comb the pile surface after lifting.

6. The high-penetration digital printing heat transfer machine with pile-finding function according to claim 1, characterized in that, The pre-treatment pile-forming area also includes a guide roller, a first platform, a second platform, and a third platform, forming a smooth conveying channel that guides the pile fabric from the pile roll through the adjustable temperature electric heating roller and the soft brush roller into the transfer penetration area.

7. The high-penetration digital printing heat transfer machine with pile-finding function according to claim 1, characterized in that, The finishing area after material discharge also includes a rear fabric guide roller, a fabric discharge frame, a fabric arrangement frame, a fabric guide trough, a fabric discharge conveyor belt and conveyor belt rollers, and a fabric drop trough; the finished fabric after printing and finishing is guided by the rear fabric guide roller and enters the fabric drop trough from the fabric discharge frame via the fabric discharge conveyor belt.

8. The high-penetration digital printing heat transfer machine with pile-finding function according to claim 1, characterized in that, The device also has a high-temperature pre-shrinking fabric feeding route; in this feeding route, the fleece or pre-treated fabric passes through the device from above, avoiding the heating roller and pressure roller mechanism, and falls directly from the fabric output frame into the fabric dropping trough after being heated at high temperature.

9. The high-penetration digital printing heat transfer machine with pile-finding function according to claim 1, characterized in that, The adjustable temperature electric heating roller is located upstream of the combing soft brush roller. The fabric to be processed is first heated and softened by the adjustable temperature electric heating roller, and then combed in the direction of the nap by the combing soft brush roller.

10. The high-penetration digital printing heat transfer machine with pile-finding function according to claim 1, characterized in that, The equipment also includes a waste paper winding mechanism, which includes a waste paper trough, a waste paper roll, and a guide roller, used to receive and collect waste paper that has separated from the velvet after printing; the bottom of the equipment is equipped with a support worktable with machine feet.

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