Decorative paper printing machine

Abstract

The utility model discloses a decorative paper printing machine which comprises an unwinding and cutting integrated unwinding device (20), a large wrap angle unwinding traction device (30), a plurality of oven printing units (40), a large wrap angle winding traction device (50) and a winding and horizontal cutting integrated winding device (60) which are sequentially arranged in a matched mode. The large wrap angle unwinding traction device (30) comprises a first small roller (31), a large roller (32) and a second small roller (33) which are used for guiding materials in sequence, and the first small roller (31) and the second small roller (33) are both located on the same side of the large roller (32). The rolling and horizontal cutting integrated rolling device (60) comprises a rack (1), two material receiving rollers (2), a first guide roller (3), a material passing and pressing roller (4) and a rolling and cutting mechanism. According to the utility model, the continuous and rapid printing and rolling of the decorative paper can be realized, the paper is well protected, the adaptability to various paper during rolling is good, and the rolling quality is high.

Description

Technical Field

[0001] The utility model belongs to the field of printing equipment, and particularly relates to a decorative paper printing machine. Background Art

[0002] Paper is widely used in the decoration field because of its environmental protection and low price. With the improvement of people's living standards, people have higher and higher requirements for the appearance and quality of decorative paper, so there are more and more requirements for fine printing of decorative paper. However, paper itself is easily broken and damaged. In order to avoid damaging the paper during processes such as unwinding, cutting, traction, and winding, existing paper printing equipment usually adopts a lower production speed, and the lower production speed is difficult to meet the output requirements. In addition, with the progress of technology, the production speed of production equipment is correspondingly faster and faster, and the quality requirements for raw material rolls including printed decorative paper rolls are getting higher and higher, that is, after the decorative paper is produced, its winding quality will also have an important impact on subsequent high-speed applications. When the existing decorative paper is wound after printing, the pressure roller used to press the winding roller usually provides pressure by its own gravity. However, different materials can withstand different pressures due to different material properties, etc. Therefore, since the pressure provided by a single pressure roller cannot be flexibly changed, it cannot meet the high-quality winding requirements of different materials, and it is particularly difficult to adapt to the high-speed winding of decorative paper with relatively fragile paper. For this reason, people hope to obtain a printing machine that can quickly print decorative paper and ensure good paper quality and winding quality. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a decorative paper printing machine with a fast production speed, good protection for paper, and good winding quality.

[0004] The utility model is realized through the following technical solutions:

[0005] A decorative paper printing machine includes a combined unwinding and cutting integrated unwinding device 20, a large wrap angle unwinding and traction device 30, several oven printing units 40, a large wrap angle winding and traction device 50, and a winding and horizontal cutting integrated winding device 60 that are sequentially arranged in cooperation. The combined unwinding and cutting integrated unwinding device 20 includes an unwinding mechanism 22 and a feeding and cutting mechanism 23 arranged on the same base 21. By arranging them on one base 21, the cutting accuracy can be better guaranteed.

[0006] Both the large wrap angle unwinding and traction device 30 and the large wrap angle winding and traction device 50 include a first small roller 31, a large roller 32, and a second small roller 33 for guiding materials in sequence. The first small roller 31 and the second small roller 33 are both located on the same side of the large roller 32, so that the material can wrap around the large roller 32 in a large range, thereby enabling the material to be well tractioned and avoiding wrinkles and breakage of the material during traction.

[0007] The coiling horizontal cutting integrated coiling device 60 includes a frame 1 and a double-station material receiving rack mounted on the frame 1 that can be flipped under the drive of a motor. There are 2 material receiving rollers 2 on the double-station material receiving rack that can replace each other for material receiving and discharging. Next to the material receiving roller 2 at the material receiving position, there are also cooperatively provided a first guide roller 3, a feeding and pressing roller 4, and a coiling and cutting mechanism. Both ends of the first guide roller 3 and the feeding and pressing roller 4 are mounted on two moving plates 5 symmetrically and slidably arranged on both sides of the frame 1 through bearings. The coiling and cutting mechanism is also arranged on the moving plates 5. On the frame 1, next to the two moving plates 5, there are provided guiding slide rails 6 that facilitate the moving plates 5 to smoothly approach or move away from the material receiving roller 2 with the feeding and pressing roller 4; at the rear ends of the two moving plates 5, there is a moving support plate 7 that can slide along the guiding slide rail 6. Between the two moving support plates 7, there is a first synchronous shaft 8 mounted on the frame 1 that can drive the two moving support plates 7 to move synchronously. At the bottom of the two moving support plates 7, there is a first rack 7.1 at each end. Both ends of the first synchronous shaft 8 are provided with first gears 8.1 that can mesh with the first rack 7.1. The first synchronous shaft 8 is driven to rotate by a moving motor 9 to enable it to drive the two moving support plates 7 to move left and right along the guiding slide rail 6;

[0008] Between the two moving plates 5, there is a second synchronous shaft 10 that can link the two moving plates 5 to move synchronously; on one of the moving support plates 7, there is a pressing cylinder 11, and the movable end of the pressing cylinder 11 is fixedly connected to the rear end of the moving plate 5 located in front of it;

[0009] The pressing cylinder 11 presets a distal position of the movable rod away from the material receiving roller and a proximal position of the movable rod close to the material receiving roller. The pressing cylinder 11 is also provided with a position detection sensor for detecting the position of the movable rod. The position detection sensor is communicatively connected to the controller of the moving motor 9. Thus, when the position detection sensor detects that the position of the movable rod is at the preset distal position, the controller controls the moving motor 9 to rotate, driving the moving support plate 7 to move backward until the movable rod in the pressing cylinder 11 is at the preset proximal position, thereby realizing the step-by-step retreat of the feeding and pressing roller 4 so that it can continuously press the material receiving roller 2 while adapting to the continuously increasing diameter of the material receiving roller 2.

[0010] Preferably, the second synchronous shaft 10 is mounted between the two moving support plates 7. At the bottom of the two moving plates 5, there is a second rack 5.1 at each end. Both ends of the second synchronous shaft 10 are provided with second gears 10.1 that can mesh with the second rack 5.1. Thus, through the second synchronous shaft, the two moving plates 5 can be linked to move synchronously and move smoothly.

[0011] Preferably, a second guide roller 15 for cooperating with the first guide roller 3 for material guiding is further arranged between the two moving support plates 7.

[0012] Preferably, both the first guide roller 3 and the feeding and pressing roller 4 are rubber rollers.

[0013] Preferably, the unwinding mechanism 22 is a double-station unwinding mechanism.

[0014] Preferably, the winding and cutting mechanism includes a winding and cutting driving cylinder 12 arranged on the moving plate 5 and a cutting knife 14 arranged at one end of a swing arm 13. The other end of the swing arm 13 is sleeved on one end of the feeding and pressing roller 4 and can rotate relative to the feeding and pressing roller 4. The movable end of the winding and cutting driving cylinder 12 is pin-connected to the middle part of the swing arm 13. Thus, the winding and cutting driving cylinder 12 pushes the swing arm 13 to rotate, and further drives the cutting knife 14 to move forward to achieve cutting.

[0015] Preferably, the decorative paper printing machine includes 4 oven printing units 40 arranged in parallel. The high oven printing units are located at both ends, and the low oven printing units are located in the middle. Thus, energy can be saved better.

[0016] The beneficial effects of the present utility model are as follows:

[0017] The decorative paper printing machine of the present utility model has a clever structure, can realize continuous and rapid printing and winding of decorative paper, protects the paper well during the traction process, has good adaptability to various papers during winding due to the use of the feeding and pressing roller, and finally has high winding quality, strong practicability and is worthy of popularization. Description of the Drawings

[0018] The present utility model will be described by way of examples with reference to the accompanying drawings, wherein:

[0019] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0020] Figure 2 is a schematic structural diagram of an integrated unwinding device for unwinding and cutting;

[0021] Figure 3 is a schematic structural diagram of a large wrap angle unwinding and traction device;

[0022] Figure 4 is a partial schematic structural diagram of an integrated winding device for horizontal winding and cutting;

[0023] Figure 5 is Figure 4 the enlarged view at A in

[0024] Figure 6It is a top view structural schematic diagram of a partial structure of a rewinding horizontal cutting integrated rewinding device. Specific embodiments

[0025] All features disclosed in this specification, or steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can be combined in any manner.

[0026] Any feature disclosed in this specification (including any additional claims, abstract, and drawings), unless specifically described, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically described, each feature is only an example of a series of equivalent or similar features.

[0027] As Figures 1-6 As shown, a decorative paper printing machine includes a feeding and cutting integrated feeding device 20, a large wrap angle feeding and traction device 30, several oven printing units 40, a large wrap angle rewinding and traction device 50, and a rewinding horizontal cutting integrated rewinding device 60 that are sequentially cooperatively arranged. The feeding and cutting integrated feeding device 20 includes a feeding mechanism 22 and a feeding and cutting mechanism 23 arranged on the same base 21. By arranging them on one base 21, the cutting accuracy can be better guaranteed.

[0028] Both the large wrap angle feeding and traction device 30 and the large wrap angle rewinding and traction device 50 include a first small roller 31, a large roller 32, and a second small roller 33 for guiding materials in sequence. The first small roller 31 and the second small roller 33 are both located on the same side of the large roller 32, so that the material can wrap around the large roller 32 in a large range, thereby enabling the material to be well tractioned and avoiding wrinkles and breakage of the material during traction.

[0029] The coiling and horizontal cutting integrated coiling device 60 includes a frame 1 and a double-station material receiving rack mounted on the frame 1 that can be flipped under the drive of a motor. There are 2 material receiving rollers 2 on the double-station material receiving rack that can replace each other for material receiving and discharging. Next to the material receiving roller 2 in the material receiving position, there is also a first guide roller 3, a feeding and pressing roller 4, and a coiling and cutting mechanism. Both ends of the first guide roller 3 and the feeding and pressing roller 4 are mounted on two moving plates 5 that are symmetrically and slidably arranged on both sides of the frame 1 through bearings. The coiling and cutting mechanism is also arranged on the moving plates 5. On the frame 1, next to the two moving plates 5, there are guiding slide rails 6 that facilitate the moving plates 5 to move the feeding and pressing roller 4 smoothly closer to or farther away from the material receiving roller 2; at the rear ends of the two moving plates 5, there is a moving support plate 7 that can slide along the guiding slide rail 6. Between the two moving support plates 7, there is a first synchronous shaft 8 mounted on the frame 1 that can drive the two moving support plates 7 to move synchronously. At the bottom of the two moving support plates 7, there is a first rack 7.1 at each end of the first synchronous shaft 8, there are first gears 8.1 that can mesh with the first rack 7.1. The first synchronous shaft 8 is driven to rotate by a moving motor 9 to enable it to drive the two moving support plates 7 to move left and right along the guiding slide rail 6;

[0030] Between the two moving plates 5, there is a second synchronous shaft 10 that can link the two moving plates 5 to move synchronously; on one of the moving support plates 7, there is a pressing cylinder 11, and the movable end of the pressing cylinder 11 is fixedly connected to the rear end of the moving plate 5 in front of it;

[0031] In the pressing cylinder 11, there are preset a distal position of the movable rod away from the material receiving roller and a proximal position of the movable rod close to the material receiving roller. In the pressing cylinder 11, there is also a position detection sensor for detecting the position of the movable rod. The position detection sensor is in communication connection with the controller of the moving motor 9. Thus, when the position detection sensor detects that the position of the movable rod is at the preset distal position, the controller controls the moving motor 9 to rotate, driving the moving support plate 7 to move backward until the movable rod in the pressing cylinder 11 is at the preset proximal position, thereby realizing the step-by-step retraction of the feeding and pressing roller 4 so that it can continuously press the material receiving roller 2 while adapting to the continuously increasing diameter of the material receiving roller 2.

[0032] The second synchronous shaft 10 is mounted between the two moving support plates 7. At the bottom of the two moving plates 5, there is a second rack 5.1 at each end of the second synchronous shaft 10, there are second gears 10.1 that can mesh with the second rack 5.1. Thus, through the second synchronous shaft, the two moving plates 5 can be linked to move synchronously and move smoothly.

[0033] Between the two moving support plates 7, there is also a second guide roller 15 for cooperating with the first guide roller 3 to guide the material.

[0034] Both the first guide roller 3 and the feeding and pressing roller 4 are rubber rollers.

[0035] The unwinding mechanism 22 is a double-station unwinding mechanism.

[0036] The winding and cutting mechanism includes a winding and cutting drive cylinder 12 arranged on the moving plate 5 and a cutter 14 arranged at one end of a swing arm 13. The other end of the swing arm 13 is sleeved on one end of the feeding and pressing roller 4 and can rotate relative to the feeding and pressing roller 4. The movable end of the winding and cutting drive cylinder 12 is pin-connected to the middle part of the swing arm 13. Thus, the winding and cutting drive cylinder 12 pushes the swing arm 13 to rotate, and further drives the cutter 14 to move forward to realize cutting.

[0037] The decorative paper printing machine includes 4 oven printing units 40 arranged in parallel. The high oven printing units are located at both ends, and the low oven printing units are located in the middle. Thus, better energy conservation can be achieved.

[0038] Working process:

[0039] The decorative paper material successively passes through the integrated unwinding and cutting device 20, the large wrap angle unwinding and traction device 30, several oven printing units 40, the large wrap angle winding and traction device 50, and the integrated winding and horizontal cutting device 60 to realize printing and winding.

[0040] Among them, on the large wrap angle unwinding and traction device 30 and the large wrap angle winding and traction device 50, the decorative paper successively passes through the first small roller 31, the large roller 32, and the second small roller 33 for material guiding. Since both the first small roller 31 and the second small roller 33 are located on the same side of the large roller 32, the material can wrap the large roller 32 in a large range, so that the material can be well tractioned, and the situation of wrinkles and breakage of the material during traction can be avoided.

[0041] In the integrated winding and horizontal cutting device 60, the material enters through the second guide roller 12, and then successively passes through the first guide roller 3 and the feeding and pressing roller 4 and enters the winding roller.

[0042] The pressing cylinder 11 is preset with a distal position of the movable rod away from the winding roller and a proximal position of the movable rod close to the winding roller. When the position detection sensor detects that the position of the movable rod is at the preset distal position, the controller controls the moving motor 9 to rotate, driving the moving support plate 7 to move backward until the movable rod in the pressing cylinder 11 is at the preset proximal position. Thus, the feeding and pressing roller 4 realizes a step-by-step retreat, so that it can continuously press the winding roller 2 while adapting to the continuously increasing diameter of the winding roller 2.

[0043] After the receiving roller 2 has completed winding a roll of decorative paper, it is sheared by the winding and cutting mechanism. Specifically: the full-roll receiving roller is replaced with a new receiving roller, and the feeding and pressing roller 4 presses on the new receiving roller 2 that has rotated to the receiving position. The cutter 14 of the winding and cutting mechanism cuts the paper upward, and then the new receiving roller 2 at the receiving position starts to wind the material.

[0044] The decorative paper printing machine of the present utility model has a clever structure and can achieve continuous and rapid printing and winding of decorative paper. It protects the paper well during the traction process. The use of the feeding and pressing roller makes it adaptable to various papers during winding, and finally results in high winding quality. In particular, by setting a pressing air cylinder 11 at the rear end of the feeding and pressing roller 4, the pressure of the feeding and pressing roller 4 on the receiving roller 2 can be adjusted according to the actual winding needs of the material, enabling the printing machine to wind a variety of materials while ensuring the winding quality. In addition, the thrust of the pressing air cylinder 11 maintains an uninterrupted pressure of the feeding and pressing roller 4 on the surface of the receiving roller 2. At the same time, the position of the movable rod in the pressing air cylinder 11 is detected by the position detection sensor to timely discover the state where the feeding and pressing roller 4 is squeezed by the receiving roller 2 with an increasing winding diameter as the winding progresses. When the movable rod reaches the distal extreme position, the two movable support plates 7 are synchronously moved backward by the moving motor 9 until the movable rod in the pressing air cylinder 11 is again located at the proximal extreme position. Thus, the pressure of the feeding and pressing roller 4 squeezed by the receiving roller 2 can be flexibly adjusted to keep the pressure relatively stable, thereby achieving both good pressing of the receiving roller 2 and orderly retraction to adapt to the increasing winding diameter of the receiving roller 2, which can well ensure the winding quality, is very beneficial to the rapid and high-quality winding of decorative paper, has strong practicability, and is worthy of promotion.

[0045] The present utility model is not limited to the foregoing specific embodiments. The present utility model extends to any new feature or any new combination disclosed in this specification, as well as any new method or process step or any new combination disclosed.

Claims

1. Decorative paper printing machine, characterized in that, The invention comprises an unwinding and cutting integrated unwinding device (20), a large wrap angle unwinding traction device (30), a plurality of oven printing units (40), a large wrap angle winding traction device (50) and a winding horizontal cutting integrated winding device (60) which are arranged in sequence, wherein the unwinding and cutting integrated unwinding device (20) comprises an unwinding mechanism (22) and a material unwinding and cutting mechanism (23) which are arranged on the same base (21); The large wrap angle unwinding traction device (30) and the large wrap angle winding traction device (50) both comprise a first small roller (31), a large roller (32) and a second small roller (33) for sequentially guiding the material, wherein the first small roller (31) and the second small roller (33) are both located on the same side of the large roller (32); The winding and horizontal cutting integrated winding device (60) comprises a frame (1) and a double-station material receiving frame mounted on the frame (1) and capable of being turned over under the drive of a motor. The double-station material receiving frame is provided with two material receiving rollers (2) which can be interchangeably used for receiving and unloading materials. Next to the material receiving roller (2) at the receiving position, a first guide roller (3), a material delivery and pressing roller (4) and a winding and cutting mechanism are also provided in coordination. Both ends of the first guide roller (3) and the material delivery and pressing roller (4) are mounted on two movable plates (5) which are symmetrically slidably arranged on both sides of the frame (1) through bearings. The winding and cutting mechanism is also arranged on the movable plate (5). The frame (1) and the two movable plates (5) are provided with a mechanism for facilitating the movable plate (5) to carry the material delivery and pressing roller ( 4) a guide rail (6) for smoothly approaching or moving away from the receiving roller (2); the rear ends of the two movable plates (5) are each provided with a movable support plate (7) that can slide along the guide rail (6); between the two movable support plates (7), there is a first synchronization shaft (8) mounted on the frame (1) and capable of driving the two movable support plates (7) to move synchronously; the bottoms of the two movable support plates (7) are each provided with a first rack (7.1); both ends of the first synchronization shaft (8) are provided with a first gear (8.1) that can mesh with the first rack (7.1); the first synchronization shaft (8) is driven to rotate by a moving motor (9) so that it can move the two movable support plates (7) left and right along the guide rail (6); A second synchronous shaft (10) is provided between the two movable plates (5) and can link the two movable plates (5) to move synchronously; a material pressing cylinder (11) is provided on one of the movable support plates (7), and the movable end of the material pressing cylinder (11) is fixedly connected to the rear end of the movable plate (5) located in front of the cylinder; The pressing cylinder (11) is preset with a far end position of the movable rod away from the receiving roller and a near end position of the movable rod close to the receiving roller. The pressing cylinder (11) is also provided with a position detection sensor for detecting the position of the movable rod. The position detection sensor is communicatively connected to the controller of the movable motor (9).

2. The decorative paper printing machine according to claim 1, characterized in that: The second synchronization shaft (10) is mounted between two movable support plates (7), a second rack (5.1) is provided at the bottom of each of the two movable plates (5), and second gears (10.1) that can mesh with the second rack (5.1) are provided at both ends of the second synchronization shaft (10).

3. The decorative paper printing machine according to claim 1, characterized in that: A second guide roller (15) for guiding materials in cooperation with the first guide roller (3) is also arranged between the two movable support plates (7).

4. The decorative paper printing machine according to claim 1, characterized in that: The first guide roller (3) and the material transfer and pressing roller (4) are both rubber rollers.

5. The decorative paper printing machine according to claim 1, characterized in that: The unwinding mechanism (22) is a double-station unwinding mechanism.

6. The decorative paper printing machine according to claim 1, characterized in that: The winding and cutting mechanism comprises a winding and cutting driving cylinder (12) arranged on a movable plate (5) and a cutter (14) arranged at one end of a rocker arm (13); the other end of the rocker arm (13) is sleeved on one end of a material transfer and pressing roller (4) and can rotate relative to the material transfer and pressing roller (4); the movable end of the winding and cutting driving cylinder (12) is connected to the middle pin shaft of the rocker arm (13).

7. The decorative paper printing machine according to claim 1, characterized in that: The decorative paper printing machine comprises four oven printing units (40) arranged in parallel, the ones located at the two ends are high oven printing units, and the one located in the middle is a low oven printing unit.

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