Soft roll calender for producing anti-counterfeiting paper

Abstract

The utility model discloses a kind of soft roll calender for anti-fake paper production, calender frame, the right side upper end of calender frame is rotatably connected with hard roll, the right side lower end of calender frame is rotatably connected with soft roll, the front side middle part of calender frame is equipped with movable fixed frame, further include fixed mechanism, fixed mechanism: it includes sliding slot, fixed buckle, recess, first limit plate, protruding and adjusting assembly, sliding slot is evenly set in the inside right side of fixed frame, fixed buckle is all set in the inside right side middle part of fixed frame, the soft roll calender for anti-fake paper production, be equipped with fixed mechanism, different diameter hard pipe can be quickly fixed by different sizes of fixed buckle, fixed frame and calender frame front side can also be made into perpendicular state and parallel state by adjusting quickly, the fixed frame of perpendicular state is convenient for the maintenance of pipeline, the fixed frame of parallel state can reduce the floor area of equipment, it is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of anti-counterfeiting paper production technology, specifically a soft roller calender for anti-counterfeiting paper production. Background Technology

[0002] Anti-counterfeiting paper is a type of paper with special anti-counterfeiting technology. It is made by adding anti-counterfeiting elements such as watermarks, security threads, fluorescent fibers, and holographic patterns during the papermaking process, or by using special coatings and printing processes. It effectively prevents counterfeiting and duplication and is commonly used for important documents such as banknotes, certificates, tickets, and licenses to ensure their authenticity and security. During the production of anti-counterfeiting paper, to ensure its flatness and mechanical strength, it needs to be calendered once. Existing soft-roll calenders for anti-counterfeiting paper production mostly consist of hard rollers, soft rollers, heating devices, and hydraulic devices. The hard rollers are mostly alloy rollers with a hard surface and an internal heating device composed of electromagnetic coils. The soft rollers have a flexible polyurethane roller surface on their outer surface, and the polyurethane roller surface contains a hydraulic device composed of multiple hydraulic chambers. The surfaces of the hard and soft rollers are in contact. During operation, the anti-counterfeiting paper passes between the hard and soft rollers, and the hard and soft rollers exert a certain pressure on the anti-counterfeiting paper. The electromagnetic coils are energized and generate heat to... When the anti-counterfeiting paper reaches a certain temperature, the hydraulic device can adjust the convexity of different areas of the soft roller surface. At this time, the elastic deformation of the soft roller evenly distributes the pressure, avoiding damage to the paper fiber structure. At the same time, the heat-pressing action makes the paper surface fibers tightly arranged, improving the presentation effect of anti-counterfeiting elements and enhancing the mechanical strength and printability of the paper, ultimately improving the overall anti-counterfeiting performance of the anti-counterfeiting paper. The entire system requires multiple pipelines to be connected to external drive equipment (such as hydraulic pump station). In order to ensure that the pipelines do not cross or tangle and facilitate maintenance, a fixing frame is also set on the frame to fix the pipelines. The connection between the pipeline and the equipment is a flexible hose, and the bottom of the flexible hose is a rigid pipe. The fixing frame fixes the rigid pipe with bolts and U-shaped buckles. In order to facilitate maintenance, the fixing frame of the traditional soft roller calender for anti-counterfeiting paper production is mostly fixed on the front side of the frame, protruding outside the equipment, which is very awkward and increases the overall footprint of the equipment, which is very inconvenient. Therefore, we propose a soft roller calender for anti-counterfeiting paper production. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a soft roller calender for anti-counterfeiting paper production. It is equipped with a fixing mechanism that can quickly fix rigid tubes of different diameters through fixing buckles of different sizes. It can also quickly adjust the fixing frame to be perpendicular or parallel to the front side of the calender frame. The vertical fixing frame facilitates the maintenance of the pipeline, and the parallel fixing frame can reduce the floor space of the equipment. It is convenient and quick and can effectively solve the problems in the background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a soft roller calender for producing anti-counterfeiting paper, comprising a calender frame, a hard roller rotatably connected to the upper right side of the calender frame, a soft roller rotatably connected to the lower right side of the calender frame, a movable fixed frame provided in the middle of the front side of the calender frame, and a fixing mechanism.

[0005] The fixing mechanism includes a sliding groove, a fixing buckle, a notch, a first limiting plate, a protrusion, and an adjusting component. The sliding groove is evenly distributed on the inner right side of the fixing frame. The fixing buckles are all located in the middle of the inner right side of the fixing frame. The outer left surface of the fixing buckle is slidably connected to the inner wall of the vertically adjacent sliding groove. The notch is located in the middle of the left side of the fixing buckle. The first limiting plate is slidably connected to the middle of the inner side of the fixing frame. The protrusion is evenly distributed on the right side of the first limiting plate. The protrusion cooperates with the vertically adjacent fixing buckle, providing a basis for the rapid fixing of rigid pipes of different diameters. The adjusting component is located between the calender frame and the fixing frame. The fixing mechanism allows for the rapid fixing of rigid pipes of different diameters using fixing buckles of different sizes. It can also be adjusted to quickly make the fixing frame perpendicular to the front side of the calender frame and parallel to it. The perpendicular fixing frame facilitates pipe maintenance, while the parallel fixing frame reduces the equipment's footprint, making it convenient and quick.

[0006] Furthermore, the fixing mechanism also includes a second lead screw and a second knob. The second lead screw is rotatably connected to the middle of the inner front side of the fixing frame, and the rear side of the outer surface of the second lead screw is threadedly connected to the middle of the inner front side of the first limiting plate. The second knob is located at the front end of the second lead screw, providing a driving effect for the rapid fixing of rigid tubes of different diameters.

[0007] Furthermore, the adjustment assembly includes mounting posts, mounting blocks, grooves, limiting posts, and limiting slots. The mounting posts are all located in the middle of the front side of the calender frame. The mounting blocks are slidably connected to the middle of the inner front side of the calender frame. The outer surfaces of the mounting posts are slidably connected to the inner rear side of the mounting blocks. The grooves are located in the middle of the inner front side of the mounting blocks. The outer surface of the fixing frame is slidably connected to the inner wall of the grooves. Limiting posts are provided in the middle of the upper and lower walls of the grooves. Limiting slots are respectively located in the middle of the upper and lower ends of the fixing frame. The outer surfaces of the limiting posts are slidably connected to the inner walls of the laterally adjacent limiting slots, providing a basis for adjusting the orientation of the fixing frame.

[0008] Furthermore, the adjustment assembly also includes a lead screw and a knob. The lead screw is rotatably connected to the middle of the inner front side of the upper mounting column. The outer surface of the lead screw is threaded to the middle of the upper inner end of the mounting block. The knob is located on the front side of the lead screw and provides a driving effect for adjusting the orientation of the fixing frame.

[0009] Furthermore, the fixing mechanism also includes a limiting component, which includes a sliding column, a second limiting plate, a spring, and a fixing plate. The sliding column is located on the lower front side of the inner end of the mounting block. The second limiting plate is slidably connected to the lower front side of the inner end of the mounting block. The inner middle of the second limiting plate is slidably connected to the outer surface of the sliding column. A spring is provided between the lower end of the second limiting plate and the inner wall of the mounting block. The spring is sleeved on the outer surface of the sliding column. The fixing plates are rotatably connected to the left and right rear ends of the fixing frame. The front ends of the opposite inner sides of the two fixing plates are chamfered. The rear ends of the opposite inner sides of the two fixing plates are in contact with the outer surface of the fixing frame. The front ends of the fixing plates are in contact with the rear ends of the second limiting plate, providing a limiting effect for fixing the fixing frame in a vertical state.

[0010] Furthermore, it also includes electromagnetic coils, polyurethane roller surfaces, hydraulic chambers, and rotary joints. Bearing seats one is rotatably connected to both the front and rear sides of the outer surface of the hard roller, and bearing seats two is rotatably connected to both the front and rear sides of the outer surface of the soft roller. The left end of each bearing seat two is fixedly connected to the middle of the right end of the calender frame. Electromagnetic coils are evenly distributed inside the hard roller, and the input end of the electromagnetic coils is electrically connected to the output end of the microcontroller. The polyurethane roller surface is located on the outer surface of the soft roller, and evenly distributed hydraulic chambers are formed inside the polyurethane roller surface. The rotary joint is located at the front end of the bearing seat two on the front side, and the rotating end of the rotary joint is fixedly connected to the front end of the soft roller. All hydraulic chambers are connected to the rotary joint, providing a foundation for the calendering of the anti-counterfeiting paper.

[0011] Furthermore, it also includes a motor, which is located at the rear end of the second bearing housing on the rear side. The input end of the motor is electrically connected to the output end of the microcontroller, and the front end of the output shaft of the motor is fixedly connected to the rear end of the soft roller, providing a stable drive for the calendering of the anti-counterfeiting paper.

[0012] Furthermore, it also includes moving blocks and hydraulic cylinders. The moving blocks are slidably connected to the upper inner part of the front and rear walls of the calendering machine frame. The left end of the bearing seat is fixedly connected to the right end of the horizontally adjacent moving block. The hydraulic cylinders are respectively set in the middle of the inner part of the front and rear walls of the calendering machine frame. The upper end of the telescopic end of the hydraulic cylinder is fixedly connected to the lower left side of the vertically adjacent moving block, providing a basis for adjusting the gap and pressure between the hard roller and the soft roller.

[0013] Furthermore, it also includes a microcontroller, which is placed at the front right end of the calender frame. The input terminal of the microcontroller is electrically connected to an external power supply to provide stable control for the calendering of the anti-counterfeiting paper.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This soft roller calender for producing anti-counterfeiting paper has the following advantages:

[0015] 1. By rotating the screw, the protrusion and the notch are vertically adjacent and misaligned. When the protrusion and the notch are vertically adjacent, the fixing buckle is fixed. When the protrusion and the notch are misaligned, the fixing buckle is unrestricted. With the use of fixing buckles of different sizes, rigid pipes of different diameters can be quickly fixed and released, which is convenient and fast.

[0016] 2. The deflection plate can quickly limit the position of the fixed frame. The second limiting plate can be quickly fixed and released by moving it up and down, thereby fixing and releasing the fixed frame. With the limit column and the limit groove and the movement of the mounting block, the fixed frame can be switched between a parallel state and a vertical state. The vertical fixed frame is convenient for pipeline maintenance, while the parallel fixed frame can reduce the footprint of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the hard roller and soft roller of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the calender frame of this utility model;

[0020] Figure 4 This is an enlarged structural diagram of point A in this utility model;

[0021] Figure 5 This is a schematic cross-sectional view of the limiting component of this utility model;

[0022] Figure 6 This is a schematic diagram of the fixing mechanism of this utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the fixing buckle of this utility model;

[0024] Figure 8 This is a schematic diagram of the structure of the second limiting plate and the fixing plate of this utility model.

[0025] In the diagram: 1. Calender frame, 2. Hard roller, 3. Soft roller, 4. Fixing frame, 5. Fixing mechanism, 51. Slide groove, 52. Fixing buckle, 53. Notch, 54. First limiting plate, 55. Protrusion, 56. Adjusting component, 561. Mounting column, 562. Mounting block, 563. Groove, 564. Limiting column, 565. Limiting groove, 566. Lead screw one, 567. Knob one, 57. Limiting component, 571. Slide column, 572. Second limiting plate, 573. Spring, 574. Fixing plate, 58. Lead screw two, 59. Knob two, 6. Electromagnetic coil, 7. Polyurethane roller surface, 8. Hydraulic chamber, 9. Rotary joint, 10. Motor, 11. Moving block, 12. Hydraulic cylinder, 13. Microcontroller. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-8This embodiment provides a technical solution: a soft roller calender for producing anti-counterfeiting paper, including a calender frame 1, a hard roller 2 rotatably connected to the upper right side of the calender frame 1, and a soft roller 3 rotatably connected to the lower right side of the calender frame 1. The hard roller 2 and the soft roller 3 respectively adopt the hard roller body and soft roller body structure commonly used in existing soft roller calenders. A movable fixed frame 4 is provided in the middle of the front side of the calender frame 1. It also includes an electromagnetic coil 6, a polyurethane roller surface 7, a hydraulic chamber 8, and a rotary joint 9. Bearing seats 1 are rotatably connected to both the front and rear sides of the outer surface of the hard roller 2, and bearing seats 2 are rotatably connected to both the front and rear sides of the outer surface of the soft roller 3. The left ends of the bearing seats 2 are fixedly connected to the middle of the right end of the calender frame 1. The electromagnetic coils 6 are evenly arranged inside the hard roller 2. The input end of the electromagnetic coil 6 is electrically connected to the output end of the microcontroller 13. A contact is located at the center of the front end of the bearing housing 1 on the front side. A conductive slip ring is located on the front side of the outer surface of the hard roller 2. The right end of the contact contacts the outer surface of the conductive slip ring for transmitting electrical signals. When the electromagnetic coil 6 is energized, it generates heat, heating the hard roller 2. (The contact and conductive slip ring constitute a commonly used brush structure in the prior art. The input end of the electromagnetic coil 6 is electrically connected to the output end of the conductive slip ring, and the input end of the contact is electrically connected to the output end of the microcontroller 13.) The polyurethane roller surface 7 is located on the outer surface of the soft roller 3. Uniformly distributed hydraulic chambers 8 are opened inside the polyurethane roller surface 7. Pumping hydraulic oil into the hydraulic chambers 8 changes the convexity of the polyurethane roller surface 7. A rotary joint 9 is located on the front bearing housing. The rotating end of the rotary joint 9 is fixedly connected to the front end of the soft roller 3 at the front end of the second bearing seat. All hydraulic chambers 8 are connected to the rotary joint 9 for conveying hydraulic oil, providing a foundation for the calendering of the anti-counterfeiting paper. It also includes a motor 10, which is located at the rear end of the second bearing seat. The input end of the motor 10 is electrically connected to the output end of the microcontroller 13. The front end of the output shaft of the motor 10 is fixedly connected to the rear end of the soft roller 3, providing stable drive for the calendering of the anti-counterfeiting paper. It also includes a moving block 11. The hydraulic cylinder 12 and the moving block 11 are slidably connected to the upper inner part of the front and rear walls of the calender frame 1, respectively. The left end of the bearing seat 1 is fixedly connected to the right end of the horizontally adjacent moving block 11. The hydraulic cylinder 12 is respectively set in the middle of the inner part of the front and rear walls of the calender frame 1. The upper end of the telescopic end of the hydraulic cylinder 12 is fixedly connected to the lower left side of the vertically adjacent moving block 11. The rotary joint 9 and the hydraulic cylinder 12 are connected to the external hydraulic pump station through hydraulic oil pipes, providing a basis for adjusting the gap and pressure between the hard roller 2 and the soft roller 3. It also includes a single-chip microcomputer 13, which is placed at the front right end of the calender frame 1. The input end of the single-chip microcomputer 13 is electrically connected to an external power supply, providing a stable control effect for the calendering of anti-counterfeiting paper. It also includes a fixing mechanism 5.

[0028] The fixing mechanism 5 includes a slide groove 51, a fixing buckle 52, a notch 53, a first limiting plate 54, a protrusion 55, and an adjusting component 56. The slide grooves 51 are evenly distributed on the inner right side of the fixing frame 4, and the fixing buckles 52 are all located in the middle of the inner right side of the fixing frame 4. The fixing buckles 52 are U-shaped and can be of various sizes. The larger the size of the fixing buckle 52, the larger its inner diameter. The left side of the outer surface of the fixing buckle 52 is slidably connected to the inner wall of the vertically adjacent slide groove 51. Figure 6Medium-sized fixing buckles 52 occupy two adjacent sliding grooves 51, while larger fixing buckles 52 occupy three sliding grooves 51. Recesses 53 are all located on the left side of the fixing buckle 52. The first limiting plate 54 is slidably connected to the center of the interior of the fixing frame 4. Protrusions 55 are evenly distributed on the right side of the first limiting plate 54. Each protrusion 55 cooperates with a vertically adjacent fixing buckle 52. When a protrusion 55 is vertically adjacent to a recess 53, the fixing buckle 52 is fixed. When a protrusion 55 is misaligned with a recess 53, the fixing buckle 52 is unrestricted, providing a basis for the rapid fixing of rigid pipes of different diameters. The fixing mechanism 5 also includes a second lead screw 58 and a second knob 59. The second lead screw 58 is rotatably connected to the center of the front side of the interior of the fixing frame 4. The rear side of the outer surface of the second lead screw 58 is connected to the first limiting plate 54. The internal front side of the screw rod 58 is threaded. A bellows is provided between the inner wall of the fixed frame 4 and the front end of the first limiting plate 54. The bellows is fitted onto the outer surface of the screw rod 58. The bellows will contract and expand as the first limiting plate 54 moves back and forth. The bellows ensure the sealing and lubrication of the screw rod 58. The knob 59 is located at the front end of the screw rod 58, providing a driving effect for the quick fixing of rigid tubes of different diameters. The adjustment component 56 is located between the calender frame 1 and the fixed frame 4. The adjustment component 56 includes a mounting post 561, a mounting block 562, a groove 563, a limiting post 564, and a limiting groove 565. The mounting posts 561 are all located in the middle of the front side of the calender frame 1. The mounting block 562 is slidably connected to the internal front side of the calender frame 1. In the middle, the outer surface of the mounting post 561 is slidably connected to the inner rear side of the mounting block 562. The groove 563 is opened in the middle of the inner front side of the mounting block 562. The groove 563 provides a clearance effect for the rotation of the fixing frame 4. The outer surface of the fixing frame 4 is slidably connected to the inner wall of the groove 563. The middle of the upper and lower walls of the groove 563 is provided with a limiting post 564. The limiting groove 565 is opened in the middle of the upper and lower ends of the fixing frame 4. The outer surface of the limiting post 564 is slidably connected to the inner wall of the horizontally adjacent limiting groove 565, providing a basis for adjusting the orientation of the fixing frame 4. The adjustment component 56 also includes a lead screw 566 and a knob 567. The lead screw 566 is rotatably connected to the middle of the inner front side of the upper mounting post 561. The outer surface of the lead screw 566 is slidably connected to the inner rear side of the mounting block 562. The upper center of the mounting block 562 is threaded internally. A knob 567 is located on the front side of the lead screw 566. Corrugated tubes are provided between the front end of the mounting post 561 and the inner wall of the mounting block 562, and between the upper front side of the mounting block 562 and the rear end of the knob 567. These corrugated tubes are fitted onto the outer surface of the lead screw 566. The corrugated tubes extend and retract with the back-and-forth movement of the mounting block 562, providing a driving effect for adjusting the orientation of the fixing frame 4. The corrugated tubes effectively protect the sealing and lubrication of the lead screw 566. The fixing mechanism 5 also includes a limiting assembly 57, which includes a sliding post 571, a second limiting plate 572, a spring 573, and a fixing plate 574. The sliding post 571 is located on the lower front side of the interior of the mounting block 562.The second limiting plate 572 is slidably connected to the lower front side of the mounting block 562. The middle of the interior of the second limiting plate 572 is slidably connected to the outer surface of the sliding column 571. A spring 573 is provided between the lower end of the second limiting plate 572 and the inner wall of the mounting block 562. The spring 573 is sleeved on the outer surface of the sliding column 571. The fixing plates 574 are rotatably connected to the left and right rear ends of the fixing frame 4. The front ends of the opposite inner sides of the two fixing plates 574 are chamfered. The rear ends of the opposite inner sides of the two fixing plates 574 are in contact with the outer surface of the fixing frame 4. The front ends of the fixing plates 574 are in contact with the rear ends of the second limiting plate 572, providing a limiting effect for the vertical fixation of the fixing frame 4. A fixing mechanism 5 is provided, which can quickly fix rigid pipes of different diameters through fixing buckles 52 of different sizes. It can also be quickly adjusted to make the fixing frame 4 perpendicular to the front side of the calender frame 1 and parallel to it. The vertical fixing frame 4 facilitates the maintenance of the pipeline, and the parallel fixing frame 4 can reduce the footprint of the equipment, which is convenient and quick. ,

[0029] The working principle of the soft roller calender for anti-counterfeiting paper production provided by this utility model is as follows: When performing calendering of anti-counterfeiting paper, the equipment needs to be installed first to facilitate later maintenance and repair. In particular, the pipeline of this equipment needs to be fixed on the fixed frame 4. The vertical fixed frame 4 facilitates pipeline maintenance. At this time, the first limiting plate 54 is located inside the rear side of the fixed frame 4, and the fixing buckle 52 is not restricted. During installation, select the appropriate fixing buckle 52 according to the diameter of the rigid pipe of different pipelines. Place the rigid pipe in a suitable position on the right side of the fixed frame 4. First, put the fixing buckle 52 on the outer surface of the rigid pipe, and then slide the fixing buckle 52 downward so that the fixing buckle 52 passes through the corresponding clearance and slides into the slide groove 51 to form a preliminary fixation for the rigid pipe. Repeat this process until all the pipes are in place. After the rigid tube is initially fixed, turn knob 59 to rotate screw 58. The first limiting plate 54 and protrusion 55 move forward to a suitable position. Protrusion 55 slowly enters the recess 53 until it is vertically adjacent to the recess 53. At this time, the fixing buckle 52 is limited, and the rigid tube is completely fixed. The rigid tube can be quickly fixed without the use of external bolts. Before the equipment is put into operation, in order to reduce the floor space occupied by the equipment, the fixing frame 4 needs to be changed to be parallel to the front side of the calender frame 1. At this time, the rear ends of the opposite inner sides of the two fixing plates 574 are in contact with the outer surface of the fixing frame 4. The fixing frame 4 is limited by the two fixing plates 574. The fixing plates 574 are also limited by the second limiting plate 572 and cannot move back and forth. The fixing frame 4 is now perpendicular to the front side of the calender frame 1. With the device in a straight position and fixed, hook your finger on the reinforcing rib on one side of the second limiting plate 572 and pull down the second limiting plate 572. The spring 573 will contract under force until the upper end of the second limiting plate 572 is lower than the lower end of the fixing frame 4. At this time, the fixing frame 4 and the fixing plate 574 are unrestricted. Rotate the fixing plate 574 forward by 90 degrees. The chamfers at the front ends of the two fixing plates 574 provide clearance for the rotation of the fixing plate 574. Then, rotate the fixing frame 4 to the left by 90 degrees with the axis of the limiting post 564 and the limiting groove 565 as the center. Then, pull the fixing frame 4 to the right through the limiting effect of the limiting post 564 and the limiting groove 565 until the inner wall of the front end of the limiting groove 565 is in contact with the surface of the limiting post 564. At this time, turn the knob 567 to drive the screw 566 to rotate, and install block 5. As mounting block 562 moves backward, the distance between limiting post 564 and the front side of calender frame 1 decreases. With continued backward movement of mounting block 562, limiting post 564 presses against the rear wall of limiting groove 565, while the rear end of fixing frame 4 is in contact with the front end of calender frame 1, creating a clamping effect on fixing frame 4. Fixing frame 4 is then limited and in a parallel state. This parallel state reduces the equipment's footprint. Then, the calendering of the anti-counterfeiting paper begins, allowing it to pass between hard roller 2 and soft roller 3. The external hydraulic pump station operates, and the telescopic end of hydraulic cylinder 12 moves downward, causing moving block 11 to move downward as well, driving bearing seat 1 and hard roller 2 downward until hard roller 2 and soft roller 3 apply appropriate pressure to the anti-counterfeiting paper. The external drive motor then operates.The universal joint drives the hard roller 2 to rotate in reverse, while the microcontroller 13 controls the motor 10 to operate. The output shaft of the motor 10 drives the soft roller 3 to rotate forward. Together, they clamp the anti-counterfeiting paper, moving it to the right. Simultaneously, the motor 10 controls the electromagnetic coil 6 to operate, radiating heat to heat the hard roller 2, creating a heating effect on the anti-counterfeiting paper and thus a heat-pressing effect. At the same time, an external hydraulic pump station operates within the hydraulic chamber 8, injecting hydraulic oil to adjust the convexity of the polyurethane roller surface 7. The elastic deformation of the polyurethane roller surface 7 evenly distributes pressure, preventing damage to the paper fiber structure. Simultaneously, the heat-pressing effect causes the paper surface fibers to tightly arrange, enhancing the presentation of the anti-counterfeiting elements and strengthening the paper's mechanical strength and printability, ultimately improving the overall anti-counterfeiting performance of the anti-counterfeiting paper.

[0030] It is worth noting that the microcontroller 13 disclosed in the above embodiments is an ATMEGA16L-8AU microcontroller, and the motor 10 is a YE3-180M-2 motor. The microcontroller 13 controls the operation of the electromagnetic coil 6 and the motor 10 using methods commonly used in the prior art.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A soft roller calender for producing anti-counterfeiting paper, comprising a calender frame (1), wherein a hard roller (2) is rotatably connected to the upper right side of the calender frame (1), a soft roller (3) is rotatably connected to the lower right side of the calender frame (1), and a movable fixed frame (4) is provided in the middle of the front side of the calender frame (1), characterized in that: It also includes fixed mechanisms (5); The fixing mechanism (5) includes a slide (51), a fixing buckle (52), a notch (53), a first limiting plate (54), a protrusion (55), and an adjustment component (56). The slide (51) is evenly opened on the inside right side of the fixing frame (4). The fixing buckles (52) are all located in the middle of the inside right side of the fixing frame (4). The left side of the outer surface of the fixing buckle (52) is slidably connected to the inner wall of the vertically adjacent slide (51). The notch (53) is all opened in the middle of the left side of the fixing buckle (52). The first limiting plate (54) is slidably connected to the middle of the inside of the fixing frame (4). The protrusion (55) is evenly arranged on the right side of the first limiting plate (54). The protrusion (55) is all installed in cooperation with the vertically adjacent fixing buckle (52). The adjustment component (56) is located between the calender frame (1) and the fixing frame (4).

2. The soft roller calender for producing anti-counterfeiting paper according to claim 1, characterized in that: It also includes a microcontroller (13), which is placed on the front right side of the calender frame (1), and the input terminal of the microcontroller (13) is electrically connected to an external power supply.

3. The soft roller calender for producing anti-counterfeiting paper according to claim 1, characterized in that: The fixing mechanism (5) also includes a second lead screw (58) and a second knob (59). The second lead screw (58) is rotatably connected to the middle of the inner front side of the fixing frame (4). The rear side of the outer surface of the second lead screw (58) is threadedly connected to the middle of the inner front side of the first limiting plate (54). The second knob (59) is located at the front end of the second lead screw (58).

4. The soft roller calender for producing anti-counterfeiting paper according to claim 1, characterized in that: The adjustment component (56) includes a mounting post (561), a mounting block (562), a groove (563), a limiting post (564), and a limiting slot (565). The mounting posts (561) are all located in the middle of the front side of the calender frame (1). The mounting block (562) is slidably connected to the middle of the front side inside the calender frame (1). The outer surface of the mounting posts (561) is slidably connected to the rear side inside the mounting block (562). The groove (563) is located in the middle of the front side inside the mounting block (562). The outer surface of the fixing frame (4) is slidably connected to the inner wall of the groove (563). The middle of the upper and lower walls of the groove (563) is provided with a limiting post (564). The limiting slot (565) is located in the middle of the upper and lower ends of the fixing frame (4). The outer surface of the limiting post (564) is slidably connected to the inner wall of the adjacent limiting slot (565).

5. A soft roller calender for producing anti-counterfeiting paper according to claim 4, characterized in that: The adjustment assembly (56) also includes a lead screw (566) and a knob (567). The lead screw (566) is rotatably connected to the middle of the front side of the upper mounting column (561). The outer surface of the lead screw (566) is threaded to the middle of the upper end of the mounting block (562). The knob (567) is located on the front side of the lead screw (566).

6. A soft roller calender for producing anti-counterfeiting paper according to claim 4, characterized in that: The fixing mechanism (5) further includes a limiting component (57), which includes a sliding column (571), a second limiting plate (572), a spring (573), and a fixing plate (574). The sliding columns (571) are all located on the front side of the lower inner end of the mounting block (562). The second limiting plate (572) is slidably connected to the front side of the lower inner end of the mounting block (562). The middle of the interior of the second limiting plate (572) is slidably connected to the outer surface of the sliding column (571). Springs (573) are provided between the lower end of 72 and the inner wall of the mounting block (562). Springs (573) are sleeved on the outer surface of the sliding column (571). Fixing plates (574) are rotatably connected to the left and right rear ends of the fixing frame (4). The front ends of the opposite inner sides of the two fixing plates (574) are chamfered. The rear ends of the opposite inner sides of the two fixing plates (574) are in contact with the outer surface of the fixing frame (4). The front ends of the fixing plates (574) are in contact with the rear ends of the second limiting plate (572).

7. A soft roller calender for producing anti-counterfeiting paper according to claim 2, characterized in that: It also includes an electromagnetic coil (6), a polyurethane roller surface (7), a hydraulic chamber (8), and a rotary joint (9). The front and rear sides of the outer surface of the hard roller (2) are rotatably connected to bearing seats one, and the front and rear sides of the outer surface of the soft roller (3) are rotatably connected to bearing seats two. The left end of the bearing seats two is fixedly connected to the middle of the right end of the calender frame (1). The electromagnetic coil (6) is evenly arranged inside the hard roller (2). The input end of the electromagnetic coil (6) is electrically connected to the output end of the microcontroller (13). The polyurethane roller surface (7) is arranged on the outer surface of the soft roller (3). The interior of the polyurethane roller surface (7) is provided with evenly distributed hydraulic chambers (8). The rotary joint (9) is arranged at the front end of the bearing seat two on the front side. The rotating end of the rotary joint (9) is fixedly connected to the front end of the soft roller (3). The hydraulic chambers (8) are all connected to the rotary joint (9).

8. A soft roller calender for producing anti-counterfeiting paper according to claim 7, characterized in that: It also includes a motor (10), which is located at the rear end of the bearing seat 2 on the rear side. The input end of the motor (10) is electrically connected to the output end of the microcontroller (13), and the front end of the output shaft of the motor (10) is fixedly connected to the rear end of the soft roller (3).

9. A soft roller calender for producing anti-counterfeiting paper according to claim 7, characterized in that: It also includes a movable block (11) and a hydraulic cylinder (12). The movable block (11) is slidably connected to the upper inside of the front and rear walls of the calender frame (1). The left end of the bearing seat is fixedly connected to the right end of the horizontally adjacent movable block (11). The hydraulic cylinder (12) is respectively located in the middle inside the front and rear walls of the calender frame (1). The upper end of the telescopic end of the hydraulic cylinder (12) is fixedly connected to the lower left side of the vertically adjacent movable block (11).

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