A gravure printing machine for producing a hydrophobic bottom layer nonwoven fabric

Abstract

The utility model discloses a kind of for producing hydrophobic bottom layer nonwoven fabric's gravure printing machine, it is related to nonwoven production equipment technical field.The utility model includes printing box;The inside of printing box is provided with printing groove, drying groove is provided at the left side of printing groove, recess printing roller is installed in printing groove, recess printing roller includes the roller body inserted in the front and rear sidewall of printing box, the both ends of roller body are respectively sleeved with mounting sleeve and limit sleeve, still inlaying installation is carried out on the outer wall of roller body with extension piece, the upper end of printing groove and drying groove is respectively covered with cover plate one and cover plate two, cover plate two bottom sidewall is hanged type and installed with adjusting assembly, adjusting assembly includes the electric push rod no. 2 fixedly installed at the bottom of cover plate two, the end of electric push rod no.

Description

Technical Field

[0001] This utility model belongs to the technical field of nonwoven fabric production equipment, and in particular relates to a gravure printing machine for producing hydrophobic bottom nonwoven fabric. Background Technology

[0002] Hydrophobic nonwoven fabrics are mainly used as the outermost bottom layer of diapers and sanitary napkins. On the one hand, they are used to wrap diapers and sanitary napkins to prevent them from being contaminated by the external environment. On the other hand, they are also used for printing patterns to improve aesthetics and achieve advertising effects. The printing process of this hydrophobic nonwoven fabric requires the use of a gravure printing machine.

[0003] Chinese patent application CN210026614U discloses an online gravure printing machine for non-woven fabrics, including a frame. An oven is fixedly connected inside the frame, and a heating plate is fixedly connected inside the oven. Conveyor rollers are rotatably connected to both sides of the oven. A dryer is fixedly connected to one side of each conveyor roller, and a drying cylinder is rotatably connected inside the dryer. A dye tank is fixedly connected below the dryer, and a printing roller is rotatably connected above the dye tank. A scraper is detachably connected to one side of the printing roller, and a rubber roller is rotatably connected above the printing roller. This invention utilizes the principle that the printing roller is not completely immersed in the dye tank. When the printing roller rotates via an external motor, and the non-woven fabric is positioned between the printing roller and the rubber roller, with a gravure pattern fixedly attached to the surface of the rubber roller, the pattern is printed onto the surface of the non-woven fabric through the contact and rotation of the printing roller and the rubber roller, resulting in a clearer pattern and improved printing quality.

[0004] The aforementioned online gravure printing machine for nonwoven fabrics has an oven installed at the left-side feed inlet. Heating plates are installed on the upper and lower side walls of the oven, and the nonwoven fabric is placed between these plates to dry the damp fabric. The temperature is highest near the heating plates and decreases outwards. Feeding nonwoven fabrics with varying degrees of moisture into the oven at the same speed can easily lead to insufficient or excessive drying. Furthermore, a dyeing tank is located at the machine's outlet, containing a printing roller. A rubber roller is positioned above the printing roller. The printing roller picks up dye from the dyeing tank and prints it onto the nonwoven fabric surface. The rubber roller ensures thorough printing. However, different nonwoven fabrics require different patterns, and the printing roller is located inside the machine, near the bottom, making disassembly and assembly difficult and time-consuming. Therefore, we provide a gravure printing machine for producing hydrophobic bottom nonwoven fabrics to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a gravure printing machine for producing hydrophobic bottom nonwoven fabrics. By setting up a gravure printing roller, it is easier to remove or install from the printing box. The distance between the nonwoven fabric and the first or second heating plate can be adjusted by adjusting the components, thus solving the problems of the above-mentioned online gravure printing machine for nonwoven fabrics.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a gravure printing machine for producing hydrophobic nonwoven fabric bottom layers. It includes a printing box, a controller embedded in the right side wall of the printing box, and a nonwoven fabric body inside the printing box. The printing box contains a printing groove, and a drying groove is located on the left side of the printing groove. Multiple gravure printing rollers are installed in the printing groove. Each gravure printing roller includes a roller body inserted into the front and rear side walls of the printing box, with an installation sleeve and a limiting sleeve respectively fitted at both ends of the roller body. An extension member is also embedded in the outer wall of the roller body. A cover plate one and a cover plate two are respectively installed at the upper ends of the printing groove and the drying groove. An adjustment assembly is suspended on the bottom side wall of the cover plate two. The adjustment assembly includes an electric push rod two fixedly installed at the bottom of the cover plate two, and the end of the electric push rod two is connected to a round rod via a connector.

[0007] The present invention is further configured such that mounting holes are provided in both the front and rear side walls of the printing groove, and the mounting holes in the front and rear side walls of the printing groove are arranged in a one-to-one correspondence.

[0008] The present invention is further configured such that the mounting sleeve is fixedly installed in the mounting hole by bolts, and the printing box is rotatably connected to the end of the roller body through the mounting sleeve. The limiting sleeve is set on the outside of the mounting sleeve, and the two ends of the roller body are restricted to the outside of the mounting sleeve by the limiting sleeve.

[0009] The present invention is further configured such that, in addition to the mounting holes for mounting the gravure printing roller, guide rollers are rotatably mounted in the remaining mounting holes on the printing box, and the guide rollers are arranged in an alternating staggered structure. A letterpress printing roller is also installed below the gravure printing roller, and an ink cartridge is also provided below the letterpress printing roller. The outer wall of the letterpress printing roller is in contact with the ink in the ink cartridge. A guide rod is also installed on the discharge port on the right side of the printing box. The non-woven fabric body alternately passes through the outer wall of the gravure printing roller. The rear end of the roller body and the rear end of the letterpress printing roller both protrude through the rear side wall of the printing box, and gears are installed on the rear end of the roller body and the rear end of the letterpress printing roller. The gears on the rear end of the roller body and the letterpress printing roller are meshed with each other.

[0010] The present invention is further configured such that a heating plate is embedded in the bottom inner wall of the drying tank, a heating plate is embedded in the bottom side wall of the cover plate, and lifting holes are provided at the four corners of the cover plate.

[0011] The present invention is further configured such that a rod fixing frame is fixedly provided on the outer wall of the electric push rod two, and the electric push rod two is fixedly connected to the lifting hole through the rod fixing frame, and the two ends of the round rod are inserted into the connector.

[0012] The present invention is further configured such that four side grooves arranged in a ring array are provided on the outer wall of the roller body, the extension member is disposed in the side groove, the extension member includes a gravure printing plate covering the outer end groove opening of the side groove, and the rear side wall of the gravure printing plate is connected to an electric push rod through a connecting block.

[0013] This utility model has the following beneficial effects: 1. This utility model features a gravure printing roller, which includes mounting sleeves embedded in the front and rear side walls of a printing box. A roller body is inserted into each mounting sleeve, and both ends of the roller body are restricted to the outside of the mounting sleeves by limiting sleeves. The outer wall of the roller body has four side grooves arranged in a circular array, each containing an extension element. The extension element includes a gravure printing plate covering the outer end of the side groove. The rear side wall of the gravure printing plate is connected to an electric push rod via a connecting block. An ink cartridge is installed below the gravure printing roller located at the bottom and rightmost end of the printing box. When assembling or disassembling the gravure printing roller, the controller first retracts the electric push rod to its shortest position. At this time, the gravure printing plate is pulled into the side groove and flush with the outer wall of the roller body. Then, the roller body is rotated and removed from both sides. Pull the roller body outward from the limiting sleeve to remove it from the mounting sleeve, then replace it with a new gravure printing roller. The assembly of the gravure printing roller is completed by reversing the operation. The controller then operates the equipment. When the gravure printing roller is working, it rotates, and the gear at its rear end drives the lower relief printing roller to rotate synchronously. The outer wall of the relief printing roller comes into contact with the ink in the ink cartridge, thus becoming stained with ink. With the power support of the external power mechanism, the gravure printing roller rotates, and the gravure printing plate also comes into contact with the non-woven fabric body. Simultaneously, the outer wall of the gravure printing roller contacts the relief printing roller through the non-woven fabric body. Through the cooperation of the relief printing roller and the gravure printing roller, the pattern is ensured to be printed on the non-woven fabric body.

[0014] 2. This utility model includes a second cover plate and an adjustment assembly. The second cover plate is positioned directly above the drying chamber of the printing box. An adjustment assembly is also mounted on the second cover plate. The adjustment assembly includes a rod fixing bracket embedded in the corner of the second cover plate. An electric push rod is installed inside the rod fixing bracket, and a connector is fixedly provided at the end of the electric push rod. The electric push rod connects to the end of a round rod via the connector. A second electric heating plate and a first electric heating plate are respectively embedded in the bottom sidewall of the second cover plate and the bottom sidewall of the drying chamber. In use, the controller activates the first and second electric heating plates, which then generate electricity. The high temperature heats the inner chamber of the drying tank. In normal operation, when not in use, the round rods at the ends of the electric push rods are located on the central axis between the first and second heating plates. When the moisture content of the batch of hydrophobic nonwoven fabric is high, the second electric push rod is activated, extending or retracting. The electric push rods at the same end of the round rod extend or retract in unison. At this time, the hydrophobic nonwoven fabric with high moisture content moves closer to the first or second heating plate, thereby shortening the distance between the hydrophobic nonwoven fabric and the heat source, raising the temperature of the area where it is located, and thus accelerating the drying speed. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a gravure printing machine used to produce hydrophobic nonwoven fabrics.

[0017] Figure 2 This is a structural cross-sectional view of a gravure printing machine used to produce hydrophobic bottom nonwoven fabrics.

[0018] Figure 3 This is a structural disassembly diagram of a gravure printing machine used to produce hydrophobic bottom nonwoven fabrics.

[0019] Figure 4 This is a schematic diagram of the printing box.

[0020] Figure 5 This is a schematic diagram of the gravure printing roller.

[0021] Figure 6 This is a structural disassembly diagram of a gravure printing roller.

[0022] Figure 7 This is a structural disassembly diagram of cover plate 2 and adjustment assembly.

[0023] The attached diagram lists the components represented by each number as follows: 1-Printing box, 101-Printing tank, 102-Mounting hole, 103-Drying tank, 103a-Heating plate one, 2-Controller, 3-Non-woven fabric body, 4-Cover plate one, 5-Gravure printing roller, 501-Roller body, 501a-Side groove, 502-Mounting sleeve, 503-Limiting sleeve, 504-Extension piece, 504a-Gravure printing plate, 504b-Connecting block, 504c-Electric push rod one, 6-Guide rod, 7-Cover plate two, 701-Lifting hole, 702-Heating plate two, 8-Adjustment assembly, 801-Electric push rod two, 802-Rod fixing frame, 803-Connector, 804-Round rod, 9-Ink cartridge, 10-Letterpress printing roller, 11-Guide roller. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1 Please see Figure 1-3 and Figures 5-6 This utility model is a gravure printing machine for producing hydrophobic bottom nonwoven fabric, including a printing box 1 and a gravure printing roller 5. The gravure printing roller 5 makes it easier to take out and install into the printing box 1.

[0026] Specifically, a controller 2 is embedded in the outer right wall of the printing box 1. A printing groove 101 is provided inside the printing box 1, and mounting holes 102 are provided on the front and rear side walls of the printing groove 101. A cover plate 4 is provided on the upper end of the printing groove 101. A gravure printing roller 5 is provided in the mounting hole 102 of the printing box 1. Guide rollers 11 are rotatably installed in the other mounting holes 102. The non-woven fabric body 3 alternately passes through the guide rollers 11 and finally wraps around the outer wall of the gravure printing roller 5. The rear end of the roller body 501 and the rear end of the letterpress printing roller 10 both protrude from the rear side wall of the printing box 1. Gears are installed on the rear end of the roller body 501 and the rear end of the letterpress printing roller 10. The gears on the rear end of the roller body 501 and the letterpress printing roller 10 are meshed with each other.

[0027] Furthermore, the gravure printing roller 5 includes a mounting sleeve 502 fixed in the mounting hole 102, and the mounting sleeve 502 is also rotatably connected to both ends of the roller body 501. A limit sleeve 503 is also provided on the end of the roller body 501. Four side grooves 501a distributed in a ring array structure are opened on the outer wall of the roller body 501. An extension member 504 is provided in the side groove 501a. The extension member 504 includes a gravure printing plate 504a covering the groove opening at the outer end of the side groove 501a. The rear side wall of the gravure printing plate 504a is connected to an electric push rod 504c through a connecting block 504b. A letterpress printing roller 10 is also installed below the gravure printing roller 5, and an ink cartridge 9 is also provided below the letterpress printing roller 10. The outer wall of the letterpress printing roller 10 is in contact with the ink in the ink cartridge 9. A guide rod 6 is also installed on the discharge port on the right side of the printing box 1.

[0028] The operation process of this embodiment is as follows: When disassembling and assembling the gravure printing roller 5, firstly, the controller 2 retracts the electric push rod 504c to its shortest position. At this time, the gravure printing plate 504a is pulled into the side groove 501a and flush with the outer wall of the roller body 501. Then, the limiting sleeves 503 on both ends of the roller body 501 are rotated out and removed. Then, the roller body 501 is pulled outward to remove it from the mounting sleeve 502. At this time, a new gravure printing roller 5 can be replaced. The assembly of the gravure printing roller 5 is completed by reversing the operation. Then, the controller 2 is used to start the equipment, and the gravure printing roller 5... During operation, it rotates, and then drives the lower relief printing roller 10 to rotate synchronously through the gear on its rear end. The outer wall of the relief printing roller 10 comes into contact with the ink in the ink cartridge 9, thus making the outer wall of the relief printing roller 10 stained with ink. Then, with the power support of the external power mechanism, the gravure printing roller 5 rotates. At this time, the gravure printing plate 5 also comes into contact with the non-woven fabric body 3. At the same time, the outer wall of the gravure printing roller 5 comes into contact with the relief printing roller 10 through the non-woven fabric body 3. Through the cooperation of the relief printing roller 10 and the gravure printing roller 5, the pattern can be printed on the non-woven fabric body 3.

[0029] Example 2 Please see Figure 4 and Figure 7 Based on embodiment 1, a second cover plate 7 and an adjustment component 8 are also provided. The distance between the nonwoven fabric body 3 and the first heating plate 103a or the second heating plate 702 can be adjusted by the adjustment component 8.

[0030] Specifically, a drying trough 103 is provided inside the left end of the printing box 1. An electric heating plate 103a is embedded in the inner wall of the bottom side of the drying trough 103. A cover plate 7 is provided at the upper end of the drying trough 103. An electric heating plate 702 is embedded in the bottom side wall of the cover plate 7. An adjustment component 8 is suspended on the cover plate 7.

[0031] Furthermore, the cover plate 2 7 has lifting holes 701 at its four corners. The adjustment assembly 8 includes a rod fixing bracket 802 fixed in the lifting hole 701, and an electric push rod 2 801 is installed in the rod fixing bracket 802. The end of the electric push rod 2 801 is also equipped with a connector 803, and the connector 803 is also installed at the end of the round rod 804.

[0032] The operation process of this embodiment is as follows: During use, the controller 2 activates the first heating plate 103a and the second heating plate 702. When they are working, they generate high temperatures and heat the inner chamber of the drying tank 103. In the normal state, i.e., when not working, the round rod 804 at the end of the electric push rod 801 is located on the central axis surface between the first heating plate 103a and the second heating plate 702. Then, when the moisture content of the batch of hydrophobic nonwoven fabric is high, the electric push rod 801 is activated, which extends or retracts. The electric push rod 801 at the end of the same round rod 804 extends or retracts uniformly. At this time, the hydrophobic nonwoven fabric with high moisture content moves closer to the first heating plate 103a or the second heating plate 702, thereby shortening the distance between the hydrophobic nonwoven fabric and the heat source, raising the temperature of the area where it is located, and thus accelerating the drying speed.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A gravure printing machine for producing hydrophobic nonwoven fabric underlay, comprising a printing box (1), wherein a controller (2) is embedded in the right side wall of the printing box (1), and a nonwoven fabric body (3) is further disposed inside the printing box (1); characterized in that: The printing box (1) is provided with a printing groove (101) inside, and a drying groove (103) is provided on the left side of the printing groove (101). A gravure printing roller (5) is installed in the printing groove (101). The gravure printing roller (5) includes a roller body (501) inserted into the front and rear side walls of the printing box (1), and an mounting sleeve (502) and a limiting sleeve (503) are respectively sleeved on both ends of the roller body (501). The outer wall of the roller body (501) is also An extension piece (504) is inlaid and installed. The upper ends of the printing tank (101) and the drying tank (103) are respectively covered with a cover plate one (4) and a cover plate two (7). An adjustment component (8) is suspended on the bottom side wall of the cover plate two (7). The adjustment component (8) includes an electric push rod two (801) fixedly installed at the bottom of the cover plate two (7), and the end of the electric push rod two (801) is connected to a round rod (804) through a connector (803).

2. The gravure printing machine for producing hydrophobic bottom nonwoven fabric according to claim 1, characterized in that, Mounting holes (102) are provided in both the front and rear side walls of the printing groove (101), and the mounting holes (102) in the front and rear side walls of the printing groove (101) are arranged one-to-one.

3. A gravure printing machine for producing hydrophobic bottom nonwoven fabric according to claim 2, characterized in that, The mounting sleeve (502) is fixedly installed in the mounting hole (102) at the upper right end of the printing box (1) by bolts, and the printing box (1) is rotatably connected to the end of the roller body (501) through the mounting sleeve (502). The limiting sleeve (503) is set outside the mounting sleeve (502), and the two ends of the roller body (501) are restricted to the outside of the mounting sleeve (502) by the limiting sleeve (503).

4. A gravure printing machine for producing hydrophobic bottom nonwoven fabric according to claim 3, characterized in that, In addition to the mounting holes (102) for mounting the gravure printing roller (5), guide rollers (11) are rotatably mounted in the remaining mounting holes (102) of the printing box (1). The guide rollers (11) are arranged in an alternating staggered structure. A relief printing roller (10) is also installed below the gravure printing roller (5), and an ink cartridge (9) is also provided below the relief printing roller (10). The outer wall of the relief printing roller (10) is in contact with the ink in the ink cartridge (9). A guide rod (6) is also installed on the discharge port on the right side of the printing box (1). The non-woven fabric body (3) alternately passes through the outer wall of the gravure printing roller (5). The rear end of the roller body (501) and the rear end of the letterpress printing roller (10) both pass through the rear side wall of the printing box (1). Gears are installed on the rear end of the roller body (501) and the rear end of the letterpress printing roller (10). The gears on the rear end of the roller body (501) and the letterpress printing roller (10) mesh with each other.

5. A gravure printing machine for producing hydrophobic bottom nonwoven fabric according to claim 1, characterized in that, The drying tank (103) has an electric heating plate (103a) embedded in the bottom inner wall, and the cover plate (7) has an electric heating plate (702) embedded in the bottom side wall. The cover plate (7) has lifting holes (701) at its four corners.

6. A gravure printing machine for producing hydrophobic bottom nonwoven fabric according to claim 5, characterized in that, A rod fixing frame (802) is fixedly installed on the outer wall of the electric push rod two (801), and the electric push rod two (801) is fixedly connected to the hoisting hole (701) through the rod fixing frame (802). The two ends of the round rod (804) are inserted into the connector (803).

7. A gravure printing machine for producing hydrophobic bottom nonwoven fabric according to claim 1, characterized in that, The outer wall of the roller (501) is provided with four side grooves (501a) arranged in a ring array. The extension member (504) is disposed in the side groove (501a). The extension member (504) includes a gravure printing plate (504a) covering the groove opening at the outer end of the side groove (501a). The rear side wall of the gravure printing plate (504a) is connected to the electric push rod (504c) through a connecting block (504b).

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