Hot air drying type single gravure press

Abstract

The utility model relates to the technical field of printing equipment, and discloses a hot air drying type single gravure press which comprises an installation plate and a single gravure press box body, the single gravure press box body is fixedly installed on the installation plate, an air cylinder is fixedly arranged at the top of the single gravure press box body, and an output shaft of the air cylinder penetrates through the single gravure press box body and is fixedly connected with a pressing plate. A drying mechanism is arranged on the single concave machine box body, the drying mechanism comprises a heating channel formed in the pressing plate, an air inlet and an air outlet are formed in the two sides of the pressing plate, and the two ends of the heating channel communicate with the air inlet and the air outlet; the heating wire is arranged in the heating channel; the air pump is fixedly arranged on the pressing plate, an air inlet pipe and an exhaust pipe are fixedly connected to the air pump, and the exhaust pipe is connected to the air inlet; and the controller is fixedly arranged on the single concave machine box body. And the heating channel and the air outlet are formed in the pressing plate, so that secondary heating can be conveniently carried out when paper is conveyed while the paper is printed and heated, and a large amount of time is saved.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, specifically a hot air drying type single-column printing machine. Background Technology

[0002] Gravure printing, also known as intaglio printing, involves printing patterns and text that are recessed into the printing plate. During printing, the ink on the non-printing surfaces of the plate is first scraped clean. Then, rollers on the printing press apply appropriate pressure to the workpiece placed on the plate, forcing the ink from the recessed areas into the workpiece, thus achieving the printing effect. A printing press using gravure printing is called a gravure printing press. Gravure printing presses are categorized by the type of paper used: sheet-fed and roll-fed gravure presses. Sheet-fed gravure presses are also called single-sheet gravure presses. Currently, after production using a single-sheet gravure press, the workpiece surface needs to be dried on the press, significantly increasing time and costs.

[0003] Chinese utility model patent CN213861354U discloses a hot air drying device for a single-cavity concave machine, including a base and a single-cavity concave machine. The single-cavity concave machine is placed on the upper wall of the base, and a hot air drying structure is provided on one side of the upper wall of the base. The hot air drying structure includes: a drying chamber, a conveyor belt, an electric push rod, a base plate, a pair of identical support plates, several identical placement plates, several identical telescopic rods, a motor, a fan, several identical electric heating tubes, and an automatic door. The drying chamber is installed on the upper wall of the base, located on the right side of the single-cavity concave machine. A rectangular groove is formed on the left wall of the drying chamber. The conveyor belt is installed on the upper wall of the base. This utility model relates to the field of hot air drying technology for single-cavity concave machines, solving the problem that after production on a single-cavity concave machine, the surface of the workpiece needs to be dried on the machine, which greatly increases time costs.

[0004] During use, this device requires separate installation of a single-cavity drying machine and a drying unit. Furthermore, the finished products on the side closer to the heating element inside the drying chamber are not dried to the same degree as those on the side farther away from the heating element, resulting in uneven drying and inconsistent product quality. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a hot air drying type single concave machine, which has the advantage of uniform drying and solves the problem that existing equipment does not dry all finished products to the same degree.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a hot air drying type single-cavity drying machine, comprising a mounting plate and a single-cavity drying machine housing, wherein the single-cavity drying machine housing is fixedly mounted on the mounting plate, a cylinder is fixedly installed on the top of the single-cavity drying machine housing, the output shaft of the cylinder passes through the single-cavity drying machine housing and is fixedly connected to a pressure plate inside the single-cavity drying machine housing, and a drying mechanism is also provided on the single-cavity drying machine housing, the drying mechanism comprising:

[0009] A heating channel is formed inside the pressure plate. The pressure plate has air inlets and air outlets on both sides. The two ends of the heating channel are connected to the air inlets and the air outlets.

[0010] A heating wire is disposed within the heating channel;

[0011] An air pump is fixedly mounted on the pressure plate. An air inlet pipe and an air outlet pipe are fixedly connected to the air pump. The air outlet pipe is connected to the air inlet.

[0012] The controller is fixedly mounted on the single concave housing, and the controller is electrically connected to the heating wire.

[0013] Preferably, a conveying mechanism is also fixedly mounted on the mounting plate, the conveying mechanism comprising:

[0014] The support frame is fixedly mounted on the upper surface of the mounting plates on both sides of the single concave chassis;

[0015] The motor is fixedly mounted on the outside of one of the support frames;

[0016] A drive roller is rotatably mounted on two of the support frames, and one of the drive rollers is fixedly connected to the output shaft of the motor;

[0017] The conveyor belt, with its drive unit mounted on the two drive rollers, is used to convey the embossing material.

[0018] Preferably, the single concave housing has a feed inlet and a discharge outlet on its two sides, the air inlet is located on the side of the pressure plate near the feed inlet, and the air outlet is inclined toward the upper surface of the conveyor belt.

[0019] Preferably, a support plate is fixedly installed inside the single concave housing. The support plate is located between the upper and lower layers of the conveyor belt, and the support plate is fitted to the lower surface of the upper conveyor belt.

[0020] Preferably, the pressure plate is fixed by bolts to the upper and lower plates, and the heating channel is opened on the side close to the upper and lower plates.

[0021] Preferably, a pipe clamp is fixedly installed in the heating channel of the upper plate of the pressure plate by bolts, and the heating wire is detachably fixed to the heating channel by the pipe clamp.

[0022] Preferably, the air pump is an adjustable power air pump, and the air pump is electrically connected to the controller.

[0023] Preferably, a temperature sensor is provided in the heating channel, and the temperature sensor is electrically connected to the controller. The controller receives the temperature information fed back by the temperature sensor, thereby controlling the heating power of the heating wire.

[0024] (III) Beneficial Effects

[0025] Compared with the prior art, this utility model provides a hot air drying type single concave machine, which has the following beneficial effects:

[0026] 1. This hot air drying single-concave printing machine opens a heating channel inside the pressure plate and installs heating wires in the channel. At the same time, an air pump draws in air through the air inlet pipe and sends it into the heating channel through the exhaust pipe. The heating wires heat the air in the channel, realizing hot air drying of the imprinting material under the pressure plate. The hot air is blown out from the air outlet and acts on the surface of the material. It achieves a highly efficient drying effect. Compared with traditional natural drying or simple external drying equipment, it can perform drying operations simultaneously during the imprinting process, greatly shortening the processing cycle.

[0027] 2. This hot air drying single-concave type machine features a pressure plate designed with upper and lower plates fixed together by bolts. The heating channel is located on the side of the two plates close to each other. Heating wires are detachably fixed within the heating channel of the upper plate using pipe clamps. This design facilitates convenient maintenance and replacement of the pressure plate and heating components, reducing maintenance difficulty and costs. During long-term operation, the heating wires may be damaged due to aging, overload, or other reasons. Traditional integrated pressure plate and heating wire structures often require complete disassembly and replacement during maintenance, which is time-consuming and labor-intensive. This design allows maintenance personnel to easily remove the bolts, separate the upper and lower plates, and inspect, replace, or maintain the heating wires individually. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0029] Figure 2 This is a schematic diagram of the structure of the present invention after removing the single concave housing.

[0030] Figure 3 This is a schematic diagram of the structure of this utility model from another angle after removing the single concave housing.

[0031] Figure 4This is a cross-sectional view of the overall structure of this utility model.

[0032] Figure 5 This is a cross-sectional view of the overall structure of this utility model from another angle.

[0033] Figure 6 This is a schematic cross-sectional view of the pressure plate of this utility model.

[0034] In the diagram: 100, mounting plate; 200, single concave casing; 201, feed inlet; 202, discharge outlet; 210, cylinder; 220, pressure plate; 230, support plate; 300, conveying mechanism; 310, support frame; 320, motor; 330, transmission roller; 340, conveyor belt; 400, drying mechanism; 410, heating channel; 411, air inlet; 412, air outlet; 420, heating wire; 430, pipe clamp; 440, air pump; 441, air inlet pipe; 442, exhaust pipe; 450, controller. Detailed Implementation

[0035] 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.

[0036] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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 this utility model.

[0037] In addition, a fixed connection refers to a connection in which parts or components are fixed and there is no relative movement; a transmission connection refers to a connection in which mechanical motion or torque is transmitted to other working parts through a transmission component; a sliding connection refers to a connection in which two objects are in contact but not fixed and can slide relative to each other; and a rotational connection refers to a connection in which two objects are in contact but not fixed and can rotate relative to each other.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] Example 1:

[0040] This embodiment provides a hot air drying type single concave machine, which has the following technical features.

[0041] Please see Figure 1-6 A hot air drying type single-cavity drying machine includes a mounting plate 100 and a single-cavity drying machine housing 200. The single-cavity drying machine housing 200 is fixedly mounted on the mounting plate 100. A cylinder 210 is fixedly installed on the top of the single-cavity drying machine housing 200. The output shaft of the cylinder 210 passes through the single-cavity drying machine housing 200 and is fixedly connected to a pressure plate 220 inside the single-cavity drying machine housing 200. A drying mechanism 400 is also provided on the single-cavity drying machine housing 200. The drying mechanism 400 includes:

[0042] Heating channel 410 is opened inside pressure plate 220. Air inlet 411 and air outlet 412 are opened on both sides of pressure plate 220. The two ends of heating channel 410 are connected to air inlet 411 and air outlet 412.

[0043] Heating wire 420 is disposed within heating channel 410;

[0044] An air pump 440 is fixedly mounted on a pressure plate 220. An air inlet pipe 441 and an exhaust pipe 442 are fixedly connected to the air pump 440. The exhaust pipe 442 is connected to the air inlet 411.

[0045] The controller 450 is fixedly mounted on the single concave housing 200, and the controller 450 is electrically connected to the heating wire 420.

[0046] Furthermore, a conveying mechanism 300 is fixedly mounted on the mounting plate 100, the conveying mechanism 300 including:

[0047] The support frame 310 is fixedly installed on the upper surface of the mounting plate 100 on both sides of the single concave housing 200;

[0048] Motor 320 is fixedly mounted on the outside of one of the support frames 310;

[0049] The transmission roller 330 is rotatably mounted on two support frames 310, and one of the transmission rollers 330 is fixedly connected to the output shaft of the motor 320;

[0050] The conveyor belt 340, with its drive unit mounted on two drive rollers 330, is used to convey the embossing material.

[0051] It should be noted that the surface of the conveyor belt 340 that comes into contact with the paper can be made of an adhesive material, or the width of the conveyor belt 340 can be made larger than the width of the pressure plate 220. In this way, clamps (not shown in the figure) can be provided on the two edges of the conveyor belt 340. The paper can be fixed to the surface of the conveyor belt 340 by the clamps, so that the paper will not move when the pressure plate 220 prints on the paper, thus making the paper print smoothly.

[0052] Furthermore, the single concave machine housing 200 has a feed inlet 201 and a discharge outlet 202 on both sides, an air inlet 411 is located on the side of the pressure plate 220 near the feed inlet 201, and the air outlet 412 is inclined toward the upper surface of the conveyor belt 340.

[0053] It should be noted that the air inlet 411 is located on the side of the pressure plate 220 near the feed port 201 on the single-coil machine housing 200, and the air outlet 412 is located on the side of the pressure plate 220 near the discharge port 202 on the single-coil machine housing 200. In this way, when the pressure plate 220 prints on the paper, the air inside the heating channel 410 is heated by the heating wire 420 and then transferred to the pressure plate 220, thereby drying the paper during the printing process. At the same time, when the paper is transferred out from the discharge port 202 by the conveying mechanism 300 after printing, the air outlet 412 of the heating channel 410 is tilted downward, so that the printed paper undergoes secondary drying during transportation. Furthermore, the air outlet 412 is located inside the single-coil machine housing 200, which helps to maintain a constant internal temperature and improves the drying speed of the printed paper.

[0054] Furthermore, a support plate 230 is fixedly installed inside the single concave housing 200. The support plate 230 is located between the upper and lower layers of the conveyor belt 340, and the support plate 230 is attached to the lower surface of the upper conveyor belt 340.

[0055] Furthermore, the pressure plate 220 is fixed by bolts to the upper and lower plates, and the heating channel 410 is opened on one side that is close to the upper and lower plates.

[0056] It should be noted that the pressure plate 220 is set with two layers, upper and lower, which can be fixed with bolts, making it convenient to change the printed text.

[0057] Furthermore, a pipe clamp 430 is fixedly installed in the heating channel 410 of the upper plate of the pressure plate 220 by bolts, and the heating wire 420 is detachably fixed to the heating channel 410 by the pipe clamp 430.

[0058] It should be noted that the pressure plate 220 is configured with two layers, and the heating channel 410 is opened at the contact position between the upper and lower layers. This makes it convenient to detachably fix the tube clamp 430 in the semi-circular heating channel 410 of the upper layer, thereby facilitating the replacement or maintenance of the heating wire 420.

[0059] Furthermore, the air pump 440 is an adjustable power air pump, and the air pump 440 is electrically connected to the controller 450.

[0060] Furthermore, a temperature sensor is installed in the heating channel 410. The temperature sensor is electrically connected to the controller 450. The controller 450 receives the temperature information fed back by the temperature sensor, thereby controlling the heating power of the heating wire 420.

[0061] Working principle: A single-concave housing 200 is installed in the middle of the upper surface of the mounting plate 100. A cylinder 210 is fixedly installed on the top plate of the single-concave housing 200. The output shaft of the cylinder 210 passes through the top plate of the single-concave housing 200 and is fixedly connected to a pressure plate 220. The pressure plate 220 is divided into an upper pressure plate 220 and a lower pressure plate 220, which are fixed together by bolts. A heating channel 410 is opened on the side of the upper pressure plate 220 and the lower pressure plate 220 that are close to each other. The two ends of the heating channel 410 pass through the upper pressure plate 220 and the lower pressure plate 220 respectively, serving as an air inlet 411 and an air outlet. An air outlet duct is fixedly connected to the air inlet 411. An adjustable power air pump 440 is fixedly installed on the upper pressure plate 220. The air inlet duct 441 of the air pump 440 can be connected to the outside of the single concave housing 200 or to the inside of the single concave housing 200. In this way, the air pump 440 can exhaust air into the interior of the heating channel 410. A detachable pipe clamp 430 is fixed to the heating channel 410 of the upper pressure plate 220 by bolts. A heating wire 420 is fixed inside the pipe clamp 430. In addition, a controller 450 is fixedly installed on the top of the single concave housing 200. The controller 450 and the heating wire 420 are connected to the heating channel 410. 20. Cylinder 210 and air pump 440 are electrically connected. When the conveyor belt 340 of the conveying mechanism 300 carries the paper into the single-coil printing press housing 200, the output of cylinder 210 controls the pressure plate 220 to print on the paper. During this process, the motor 320 does not rotate, and cylinder 210 controls the pressure plate 220 to move closer to the support plate 230. Simultaneously, it controls the air pump 440 and heating wire 420 to operate, allowing the paper to be heated and dried simultaneously during printing. While the air pump 440 continuously blows air into the pressure plate 220, the air outlet 412 continuously discharges hot air from the pressure plate. In section 220, the printed paper on conveyor belt 340 can be heated a second time, accelerating the drying rate of the printed product and saving time. In addition, a temperature sensor (not shown in the figure) is installed inside the heating channel 410. The temperature sensor is electrically connected to the controller 450. In this way, the temperature inside the heating channel 410 is monitored in real time by the temperature sensor, and the temperature information of the heating channel 410 is transmitted to the controller 450. The controller 450 can then change the heating power of the heating wire 420 to keep the temperature of the entire pressure plate 220 stable, ensuring the stability of the drying of the printed paper.

[0062] In summary, this hot air drying single-concave printing machine achieves hot air drying of the printing material below the pressure plate 220 by opening a heating channel 410 inside the pressure plate 220 and installing a heating wire 420 inside the channel. Simultaneously, an air pump 440 draws in air through an air inlet pipe 441 and sends it into the heating channel 410 through an exhaust pipe 442. The heating wire 420 heats the air inside the channel, thereby achieving hot air drying of the printing material below the pressure plate 220. The hot air is blown out from the air outlet 412 and acts on the surface of the material. This achieves a highly efficient drying effect. Compared with traditional natural drying or simple external drying equipment, it can perform drying operations simultaneously during the printing process, greatly shortening the processing cycle.

[0063] In summary, this hot air drying single-concave machine, by designing the pressure plate 220 as consisting of upper and lower plates fixed by bolts, and with the heating channel 410 located on the side of the two plates close to each other, and by using pipe clamps 430 to detachably fix the heating wire 420 in the heating channel 410 of the upper plate of the pressure plate 220, achieves convenient maintenance and replacement of the pressure plate 220 and heating components, thereby reducing the difficulty and cost of equipment maintenance. During long-term operation, the heating wire 420 may be damaged due to aging, overload, or other reasons. Traditional integrated pressure plate 220 and heating wire 420 structures often require complete disassembly and replacement during maintenance, which is time-consuming and labor-intensive. This design allows maintenance personnel to easily remove the bolts, separate the upper and lower plates, and inspect, replace, or maintain the heating wire 420 individually.

[0064] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0065] 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 hot air drying type single-cavity drying machine, comprising a mounting plate (100) and a single-cavity drying machine housing (200), wherein the single-cavity drying machine housing (200) is fixedly mounted on the mounting plate (100); a cylinder (210) is fixedly disposed on the top of the single-cavity drying machine housing (200), the output shaft of the cylinder (210) passes through the single-cavity drying machine housing (200) and a pressure plate (220) is fixedly connected inside the single-cavity drying machine housing (200), characterized in that: The single-concave housing (200) is also provided with a drying mechanism (400), which includes: A heating channel (410) is provided inside the pressure plate (220). An air inlet (411) and an air outlet (412) are provided on both sides of the pressure plate (220). The two ends of the heating channel (410) are connected to the air inlet (411) and the air outlet (412). A heating wire (420) is disposed within the heating channel (410); An air pump (440) is fixedly mounted on the pressure plate (220). An air inlet pipe (441) and an exhaust pipe (442) are fixedly connected to the air pump (440). The exhaust pipe (442) is connected to the air inlet (411). The controller (450) is fixedly mounted on the single concave housing (200), and the controller (450) is electrically connected to the heating wire (420).

2. The hot air drying type single concave drying machine according to claim 1, characterized in that, A conveying mechanism (300) is also fixedly installed on the mounting plate (100), the conveying mechanism (300) comprising: The support frame (310) is fixedly installed on the upper surface of the mounting plate (100) on both sides of the single concave chassis (200); The motor (320) is fixedly mounted on the outside of one of the support frames (310); A drive roller (330) is rotatably mounted on two of the support frames (310), and one of the drive rollers (330) is fixedly connected to the output shaft of the motor (320); The conveyor belt (340), with the drive assembly mounted on the two drive rollers (330), is used to convey the embossing material.

3. A hot air drying type single concave drying machine according to claim 2, characterized in that, The single concave housing (200) has a feed inlet (201) and a discharge outlet (202) on its two sides respectively. The air inlet (411) is located on the side of the pressure plate (220) close to the feed inlet (201), and the air outlet (412) is inclined toward the upper surface of the conveyor belt (340).

4. A hot air drying type single concave drying machine according to claim 3, characterized in that, A support plate (230) is fixedly installed inside the single concave housing (200). The support plate (230) is located between the upper and lower layers of the conveyor belt (340), and the support plate (230) is attached to the lower surface of the upper conveyor belt (340).

5. A hot air drying type single concave drying machine according to claim 1, characterized in that, The pressure plate (220) is fixed by bolts to the upper and lower plates, and the heating channel (410) has a side that is close to the upper and lower plates.

6. A hot air drying type single concave drying machine according to claim 1, characterized in that, A pipe clamp (430) is fixed in the heating channel (410) of the upper plate of the pressure plate (220) by bolts, and the heating wire (420) is detachably fixed to the heating channel (410) by the pipe clamp (430).

7. A hot air drying type single concave drying machine according to claim 1, characterized in that, The air pump (440) is an adjustable power air pump, and the air pump (440) is electrically connected to the controller (450).

8. A hot air drying type single concave drying machine according to claim 1, characterized in that, A temperature sensor is provided in the heating channel (410). The temperature sensor is electrically connected to the controller (450). The controller (450) receives the temperature information fed back by the temperature sensor, thereby controlling the heating power of the heating wire (420).

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