A continuous embossing mechanism for sanitary paper

Abstract

The utility model relates to sanitary tissue paper processing technical field especially relates to a continuous embossing mechanism of sanitary tissue paper. The utility model provides a kind of continuous embossing mechanism of sanitary tissue paper, including mounting bracket, controller, connecting frame, fixed mandrel, upper embossing roller and motor one etc., controller is installed in mounting bracket left side front part, connecting frame is slidably equipped in mounting bracket upper part, fixed mandrel is rotatably equipped in connecting frame lower part, upper embossing roller is sleeved in fixed mandrel middle part, wherein, the keyway is fixed in the circumferential direction of the inner wall of upper embossing roller, the keyway is fixed with the convexity circumferential surface of fixed mandrel, motor one is installed in connecting frame right side. The utility model adopts the keyway cooperation structure between fixed mandrel and upper embossing roller, realizes the quick assembly and disassembly of pattern roller, and is combined with quick change structure simultaneously, without tool.

Description

Technical Field

[0001] This utility model relates to the field of toilet paper processing technology, and in particular to a continuous embossing mechanism for toilet paper. Background Technology

[0002] Toilet paper, as a daily necessity, often has a textured surface created through embossing to enhance its softness, absorbency, visual appeal, and overall quality. Embossing also increases the gaps between fibers, improving fluffiness and enhancing user comfort.

[0003] Currently, most common toilet paper embossing uses an upper and lower roller structure, which consists of a pair of meshing steel rollers and elastic rubber rollers forming an embossing unit. The pattern is imprinted through the interaction between the rollers. However, most existing devices are fixed designs, and the patterns on the rollers are fixed engraving sets. When the pattern needs to be changed, a lot of time is required to disassemble and replace the entire roller, resulting in long mold change times and complicated operations. In addition, the meshing pressure of the upper and lower rollers in this structure is mostly preset by mechanical or pneumatic means, which has low adjustment accuracy and slow response speed. It cannot achieve dynamic and precise control according to the number of paper layers (such as single layer, double layer or multi-layer) and changes in basis weight, thus affecting the product appearance quality and production continuity.

[0004] Therefore, it is necessary to design a continuous embossing mechanism for toilet paper rolls. Utility Model Content

[0005] In order to overcome the shortcomings of existing embossing mechanisms such as slow changeover speed and low pressure adjustment accuracy, this utility model provides a continuous embossing mechanism for toilet paper rolls.

[0006] The technical solution of this utility model is: a continuous embossing mechanism for toilet paper rolls, including a mounting frame, a controller, a connecting frame, a fixed mandrel, an upper embossing roller, a first motor, a lower embossing roller, a second motor, an electric push rod, a pressure sensor, and a quick-change structure. The controller is mounted on the front left side of the mounting frame. The connecting frame is slidably mounted on the upper part of the mounting frame, and the fixed mandrel is rotatably mounted on the lower part of the connecting frame. The upper embossing roller is sleeved in the middle of the fixed mandrel. The inner wall of the upper embossing roller has a keyway along its circumference, and this keyway interacts with the protrusions on the outer surface of the fixed mandrel. The mounting frame is circumferentially fixed. A motor is installed on the right side of the connecting frame, and the output shaft of motor one is connected to the fixed spindle. A lower embossing roller is rotatably installed at the bottom of the mounting frame. A motor two is installed on the right side of the bottom of the mounting frame, and the output shaft of motor two is connected to the rotating shaft of the lower embossing roller. An electric push rod is installed on the top of the mounting frame, and the telescopic end of the electric push rod is connected to the connecting frame. A pressure sensor is installed between one side of the connecting frame and the mounting frame. A quick-change structure is installed on the other side of the mounting frame. The controller is electrically connected to motor one, motor two, electric push rod and pressure sensor.

[0007] Furthermore, the quick-change structure includes a mounting plate, wedge-shaped limiting rods, snap-fit ​​blocks, elastic elements, and handles. The mounting plate is provided on one side of the connecting frame, and multiple guide grooves are provided on the upper part of the mounting plate. One end of the fixed spindle abuts against the mounting plate. Multiple wedge-shaped limiting rods are provided on one side of the connecting frame, and the wedge-shaped limiting rods are all inserted into the guide grooves. Snap-fit ​​blocks are slidably provided in the guide grooves. Elastic elements are connected between the snap-fit ​​blocks and the mounting plate, and the snap-fit ​​blocks are snap-fitted with the wedge-shaped limiting rods. Handles are fixedly connected between the snap-fit ​​blocks.

[0008] Furthermore, it also includes a brush cylinder and a pulley. The brush cylinder is rotatably connected to the upper part of the mounting plate. The brush cylinder is located directly above the upper embossing roller and is in close contact with it. A pulley is wound between the motor output shaft and the brush cylinder shaft.

[0009] Furthermore, it also includes a vacuum cleaner and a dust collection frame. The vacuum cleaner is installed on the upper rear side of the mounting plate. The vacuum cleaner's suction port is located between the brush cylinder and the upper embossing roller. The vacuum cleaner is electrically connected to the controller. The dust collection frame is fixed to the top of the mounting frame. The interior of the dust collection frame is connected to the interior of the vacuum cleaner through a flexible tube.

[0010] Furthermore, it also includes foot pads, with multiple foot pads located at the bottom of the mounting bracket.

[0011] Furthermore, the upper embossing roller is a steel engraving roller with embossed patterns on its surface, while the lower embossing roller is an elastic rubber roller that works with the upper roller to form an embossing area. Beneficial effects

[0012] 1. This utility model adopts a keyway fit structure between the fixed mandrel and the upper embossing roller to realize the quick assembly and disassembly of the pattern roller. At the same time, it is combined with a quick change structure, which can complete the replacement of the entire set of embossing rollers without tools, greatly shortening the mold change time and improving the flexibility and continuity of production.

[0013] 2. This utility model uses an electric push rod in conjunction with a pressure sensor and controller to realize real-time monitoring and dynamic adjustment of the meshing pressure between the upper and lower embossing rollers, forming a closed-loop control, which significantly improves the pressure adjustment accuracy and response speed, and adapts to the embossing needs of different paper specifications. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the components of this utility model, including motor one, lower embossing roller, and motor two.

[0016] Figure 3 This is a three-dimensional structural diagram of the connecting frame, mounting plate, and wedge-shaped limiting rod of this utility model.

[0017] Figure 4This is a schematic diagram of the planar structure of the snap-fit ​​block, elastic element, and handle of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the fixed mandrel and upper embossing roller components of this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the mounting bracket, dust collection equipment, and dust collection frame of this utility model.

[0020] In the attached diagram, the following are the reference numerals: 1_mounting bracket, 2_controller, 3_connecting bracket, 301_fixed spindle, 4_upper embossing roller, 5_motor one, 6_lower embossing roller, 7_motor two, 8_electric push rod, 9_pressure sensor, 10_mounting plate, 11_wedge limit rod, 12_clamping block, 13_elastic element, 14_handle, 15_brush tube, 16_pulley, 17_vacuum cleaning device, 18_dust collection frame, 101_foot pad. Detailed Implementation

[0021] Example: A continuous embossing mechanism for toilet paper rolls, such as... Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the assembly includes a mounting frame 1, a controller 2, a connecting frame 3, a fixed mandrel 301, an upper embossing roller 4, a first motor 5, a lower embossing roller 6, a second motor 7, an electric push rod 8, a pressure sensor 9, and a quick-change structure. The controller 2 is mounted on the front left side of the mounting frame 1. The connecting frame 3 is slidably mounted on the upper part of the mounting frame 1, and the fixed mandrel 301 is rotatably mounted on the lower part of the connecting frame 3. The upper embossing roller 4 is sleeved in the middle of the fixed mandrel 301. The inner wall of the upper embossing roller 4 has a keyway circumferentially provided, which is circumferentially fixed to a protrusion on the outer surface of the fixed mandrel 301. The first motor 5 is mounted on the right side of the connecting frame 3 by bolts. The output shaft of the first motor 5 is connected to the fixed mandrel. Connected to 301, the lower part of the mounting frame 1 is equipped with a rotating lower embossing roller 6. The lower right side of the mounting frame 1 is equipped with a second motor 7 by bolts. The output shaft of the second motor 7 is connected to the rotating shaft of the lower embossing roller 6. The upper embossing roller 4 is a steel engraving roller with an embossed pattern on its surface. The lower embossing roller 6 is an elastic rubber roller that cooperates with the upper roller to form a pressing area. An electric push rod 8 is installed on the upper part of the mounting frame 1. The telescopic end of the electric push rod 8 is connected to the connecting frame 3. A pressure sensor 9 is provided between the right side of the connecting frame 3 and the mounting frame 1. A quick-change structure is provided on the left side of the mounting frame 1. The controller 2 is electrically connected to the first motor 5, the second motor 7, the electric push rod 8, and the pressure sensor 9.

[0022] like Figure 2 , Figure 3 and Figure 4As shown, the quick-change structure includes a mounting plate 10, wedge-shaped limiting rods 11, snap-fit ​​blocks 12, elastic elements 13, and handles 14. The mounting plate 10 is provided on one side of the connecting frame 3. The upper part of the mounting plate 10 is provided with multiple guide grooves. One end of the fixed spindle 301 abuts against the mounting plate 10. The connecting frame 3 is provided with multiple wedge-shaped limiting rods 11 on one side. All wedge-shaped limiting rods 11 are inserted into the guide grooves. Snap-fit ​​blocks 12 are slidably provided in the guide grooves. Elastic elements 13 are connected between the snap-fit ​​blocks 12 and the mounting plate 10. The snap-fit ​​blocks 12 are snap-fitted with the wedge-shaped limiting rods 11. Handles 14 are fixedly connected between the snap-fit ​​blocks 12.

[0023] like Figure 2 As shown, it also includes a brush cylinder 15 and a pulley 16. The brush cylinder 15 is rotatably connected to the upper part of the mounting plate 10. The brush cylinder 15 is located directly above the upper embossing roller 4 and is in close contact with it. The pulley 16 is wound between the output shaft of the motor 5 and the rotating shaft of the brush cylinder 15.

[0024] like Figure 1 and Figure 6 As shown, it also includes a vacuum cleaner 17 and a dust collection frame 18. The vacuum cleaner 17 is installed on the upper rear side of the mounting plate 10. The vacuum port of the vacuum cleaner 17 is located between the brush cylinder 15 and the upper embossing roller 4. The vacuum cleaner 17 is electrically connected to the controller 2. The dust collection frame 18 is fixedly attached to the top of the mounting frame 1. The interior of the dust collection frame 18 is connected to the interior of the vacuum cleaner 17 through a flexible tube.

[0025] like Figure 1 As shown, it also includes foot pads 101. Multiple foot pads 101 are provided at the bottom of the mounting frame 1, which have leveling and shock absorption functions, improving the stability of equipment operation and service life.

[0026] In actual operation, the operator passes the toilet paper roll to be embossed between the upper and lower pressure rollers to achieve continuous embossing operation. Motor 5 is installed on the right side of the connecting frame 3 and drives the upper embossing roller 4 to rotate under the control of the controller 2. The lower embossing roller 6 is rotated and installed at the lower part of the mounting frame 1 and is driven independently by motor 7. Its material is an elastic rubber roller, which cooperates with the upper embossing roller 4 to form a pressure zone. When the paper web passes through this area, it is pressed to form clear concave and convex patterns.

[0027] During the embossing process, the electric push rod 8 pushes the connecting frame 3 to move up and down along the guide rail on the mounting frame 1, thereby adjusting the meshing pressure between the upper embossing roller 4 and the lower embossing roller 6. The pressure sensor 9 monitors the actual pressure value between the two rollers in real time and feeds the signal back to the controller 2. The controller 2 compares the feedback value with the preset pressure parameters and dynamically adjusts the output thrust of the electric push rod 8 to achieve high-precision closed-loop control of the pressure. This system can adapt to different layers (single layer, double layer or multi layer) and weight of paper, effectively avoiding paper stretching and damage due to excessive pressure or blurring of patterns due to insufficient pressure, and ensuring stable and consistent embossing quality.

[0028] When the pattern needs to be changed, the operator pulls handle 14, causing multiple locking blocks 12 to move upward against the elastic force of elastic element 13, disengaging them from the limiting groove of wedge-shaped limiting rod 11, thereby releasing the lock on mounting plate 10. Then, the mounting plate 10 is pulled out as a whole, the original upper embossing roller 4 is removed from the fixed mandrel 301 and replaced with the roller set of the desired pattern. The mounting plate 10 is then pushed back into its original position. During the pushing process, the wedge-shaped limiting rod 11 slides into the guide groove inside the mounting plate 10, its front... The inclined end pushes the locking block 12 to move upward again to make room. When the mounting plate 10 is fully in place, the locking block 12 automatically falls down under the restoring force of the elastic element 13. Its end face is tightly attached to the vertical surface of the wedge-shaped limiting rod 11 to form a reliable mechanical limit, preventing the mounting plate 10 from loosening or falling out to the left during operation. This changeover structure does not require the use of tools or the removal of bolts, realizing quick and convenient roller group replacement, significantly shortening the mold change time, and improving the equipment's adaptability to multi-variety and small-batch production.

[0029] To ensure the quality of embossing, the equipment is also equipped with an automatic cleaning system. The brush cylinder 15 is rotatably installed directly above the upper embossing roller 4. Its rotating shaft is linked to the output shaft of the motor 5 through the pulley 16, so as to achieve synchronous rotation with the upper embossing roller 4 and continuously remove paper scraps and dust attached to the roller surface. The dust collection device 17 is installed on the rear side of the mounting plate 10. Its dust collection port is aimed at the contact area between the brush cylinder 15 and the upper embossing roller 4, and promptly sucks up the dust generated by the cleaning. The dust is then transported to the dust collection frame 18 through a flexible conduit for centralized treatment, effectively preventing the spread of dust and causing secondary pollution, and keeping the equipment clean and the working environment tidy.

Claims

1. A continuous embossing mechanism for toilet paper rolls, characterized in that: The system includes a mounting frame (1), a controller (2), a connecting frame (3), a fixed mandrel (301), an upper embossing roller (4), a first motor (5), a lower embossing roller (6), a second motor (7), an electric push rod (8), a pressure sensor (9), and a quick-change structure. The controller (2) is mounted on the left front of the mounting frame (1). The connecting frame (3) is slidably mounted on the upper part of the mounting frame (1). The fixed mandrel (301) is rotatably mounted on the lower part of the connecting frame (3). The upper embossing roller (4) is sleeved in the middle of the fixed mandrel (301). The upper embossing roller (4) has a keyway along the circumferential direction on the inner wall of the upper embossing roller (4). The keyway is circumferentially fixed to the protrusion on the outer surface of the fixed mandrel (301). The connecting frame (3) is mounted on the right side. The mounting frame (1) is equipped with a motor (5), the output shaft of which is connected to a fixed spindle (301). The lower part of the mounting frame (1) is equipped with a rotating lower embossing roller (6). The lower right side of the mounting frame (1) is equipped with a motor (7), the output shaft of which is connected to the rotating shaft of the lower embossing roller (6). The upper part of the mounting frame (1) is equipped with an electric push rod (8), the telescopic end of which is connected to the connecting frame (3). A pressure sensor (9) is provided between one side of the connecting frame (3) and the mounting frame (1). The other side of the mounting frame (1) is equipped with a quick-change structure. The controller (2) is electrically connected to the motor (5), the motor (7), the electric push rod (8), and the pressure sensor (9).

2. The continuous embossing mechanism for toilet paper rolls according to claim 1, characterized in that: The quick-change structure includes a mounting plate (10), a wedge-shaped limiting rod (11), a snap-fit ​​block (12), an elastic element (13), and a handle (14). The mounting plate (10) is provided on one side of the connecting frame (3). The upper part of the mounting plate (10) is provided with multiple guide grooves. One end of the fixed spindle (301) abuts against the mounting plate (10). The connecting frame (3) is provided with multiple wedge-shaped limiting rods (11) on one side. The wedge-shaped limiting rods (11) are all inserted into the guide grooves. The snap-fit ​​blocks (12) are slidably provided in the guide grooves. The snap-fit ​​blocks (12) and the mounting plate (10) are all connected with elastic elements (13). The snap-fit ​​blocks (12) are all snap-fitted with the wedge-shaped limiting rods (11). The snap-fit ​​blocks (12) are fixedly connected with the handles (14).

3. The continuous embossing mechanism for toilet paper rolls according to claim 2, characterized in that: It also includes a brush cylinder (15) and a pulley (16). The brush cylinder (15) is rotatably connected to the upper part of the mounting plate (10). The brush cylinder (15) is located directly above the upper embossing roller (4) and is in close contact with it. The pulley (16) is wound between the output shaft of the motor (5) and the rotating shaft of the brush cylinder (15).

4. The continuous embossing mechanism for toilet paper rolls according to claim 3, characterized in that: It also includes a vacuum cleaner (17) and a dust collection frame (18). The vacuum cleaner (17) is installed on the upper rear side of the mounting plate (10). The vacuum port of the vacuum cleaner (17) is located between the brush cylinder (15) and the upper embossing roller (4). The vacuum cleaner (17) is electrically connected to the controller (2). The dust collection frame (18) is fixed to the top of the mounting bracket (1). The interior of the dust collection frame (18) is connected to the interior of the vacuum cleaner (17) through a flexible tube.

5. The continuous embossing mechanism for toilet paper rolls according to claim 4, characterized in that: It also includes foot pads (101), and the bottom of the mounting bracket (1) is provided with multiple foot pads (101).

6. The continuous embossing mechanism for toilet paper rolls according to claim 5, characterized in that: The upper embossing roller (4) is a steel engraving roller with embossed patterns on its surface, and the lower embossing roller (6) is an elastic rubber roller that works with the upper roller to form an embossing area.

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