A flattening mechanism for a film printer
By combining lifting and sliding mechanisms, the pressure of the pressure rollers can be adaptively adjusted and automatically cleaned, solving the problem that the flattening mechanism of traditional film printing machines cannot be adaptively adjusted, thus improving printing accuracy and yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING SHUODA PACKAGING MATERIAL CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-02
AI Technical Summary
The flattening mechanism of traditional film printing machines is difficult to adaptively adjust according to the film material and thickness, resulting in local wrinkles or damage to the film and affecting printing accuracy.
A flattening mechanism including a lifting mechanism and a sliding mechanism was designed. The lifting block and the adjusting rod are driven by the lifting cylinder and cooperate with the inclined slide to realize the self-adjustment of the pressure of the pressure roller. A cleaning mechanism is also provided to automatically remove dust and impurities from the film surface.
It achieves adaptive adjustment of pressure roller pressure, avoids film damage, improves printing yield, and reduces printing defects through an automatic cleaning mechanism, ensuring printing quality.
Smart Images
Figure CN224311449U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of printing machine technology, specifically a flattening mechanism for a film printing machine. Background Technology
[0002] Thin film printing technology is widely used in packaging, labeling, electronic display and other fields, playing a key role in product appearance decoration and information transmission. As the core equipment for realizing the printing process, the performance of the flattening mechanism of the thin film printing machine directly affects the printing quality and production efficiency. A good flattening mechanism can ensure flat film transport and uniform ink adhesion, thereby improving the clarity and color saturation of the printed pattern.
[0003] However, the flattening mechanism of traditional film printing machines has defects. On the one hand, the pressure of the pressure roller is difficult to adaptively adjust according to the film material and thickness, which can easily lead to local wrinkles or damage to the film and affect the printing accuracy. Therefore, this utility model provides a flattening mechanism for a film printing machine. Utility Model Content
[0004] In order to overcome the shortcomings of the existing technology and solve the problems raised in the background art.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The flattening mechanism of the film printing machine of this utility model includes a base plate, a conveyor belt is set at the upper center of the base plate, extension blocks are fixedly installed at the front and rear ends of the base plate, guide rods are fixedly installed between two corresponding extension blocks, lifting mechanisms are set at both ends of the base plate, and multiple support columns are fixedly installed at the upper center of the base plate, with cleaning mechanisms set on the surface of the support columns.
[0006] Preferably, a top plate is fixedly installed at the upper end of the support column, a printing cylinder is fixedly installed at the center of the upper end of the top plate, and the lower end of the printing cylinder penetrates the surface of the top plate and is fixedly connected to the printing plate.
[0007] Preferably, the lifting mechanism includes a lifting cylinder, a lifting block, and an adjusting rod. Support blocks are fixedly installed at both ends of the lower half of the base plate, and a lifting cylinder is fixedly installed at the upper end of the support blocks. The upper end of the lifting cylinder is fixedly connected to the lower end of the lifting block. Movable grooves are provided on both sides of the lifting block, and a fixed shaft is fixedly installed inside the movable groove. One end of the adjusting rod is sleeved on the surface of the fixed shaft, and a sliding mechanism is provided at the other end of the adjusting rod.
[0008] Preferably, the bottom plate has limiting grooves at both ends corresponding to the positions of the lifting blocks, and the lifting block is fixedly connected to the limiting block at one inner end, with the limiting block slidably connected inside the limiting groove.
[0009] Preferably, the sliding mechanism includes an arc groove, a central shaft, and a fixing block. The upper half of the surface of the adjusting rod is provided with an arc groove. The central shaft is slidably connected between the two arc grooves. The two ends of the central shaft extend to the outside of the arc groove and are fixedly connected to the limiting plate. The upper surface of the base plate is fixedly connected to the fixing block at the position corresponding to the central shaft. The surface of the central shaft is fitted with a pressure roller between the two fixing blocks.
[0010] Preferably, a groove is provided at the center of the fixing block, the groove gradually slopes upward from the outside to the inside, and the two ends of the central shaft are slidably connected inside the groove.
[0011] Preferably, the cleaning mechanism includes a fixed column, a connecting rod, and a dust removal rod. The fixed column is fixedly installed on the outermost surface of the two supporting columns. One end of the connecting rod is sleeved on the surface of the fixed column, and the other end of the connecting rod is sleeved on the surface of the dust removal rod. The surface of the dust removal rod is sleeved on the upper end of the conveyor belt, and a dust removal roller is sleeved on it.
[0012] Preferably, two upper semicircular blocks are fixedly installed at the lower end of the connecting rod, and a lower semicircular block is fixedly installed at the corresponding side end of the upper surface of the base plate. An electric push rod is hinged between the upper and lower semicircular blocks.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The flattening mechanism of the film printing machine described in this utility model achieves self-adjustment of the pressure of the pressure roller through the cooperation of the lifting mechanism and the sliding mechanism. The lifting cylinder drives the lifting block to move, and in conjunction with the adjusting rod and the inclined slide groove in the fixed block, the central shaft drives the pressure roller to automatically adjust the pressure and the angle of action according to the actual state of the film during the up and down movement. This ensures that the film is fully flattened and avoids film damage caused by excessive pressure, thereby improving the printing yield.
[0015] 2. The flattening mechanism and cleaning mechanism of the film printing machine described in this utility model can realize automatic cleaning of the film surface. The electric push rod drives the dust removal roller to roll closely against the film, continuously removing dust and impurities, eliminating printing defects caused by contaminants, and reducing the frequency of manual cleaning. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is a schematic diagram of the lifting mechanism in this utility model;
[0019] Figure 3 This utility model Figure 2 Partial sectional view;
[0020] Figure 4 This is a schematic diagram of the cleaning mechanism in this utility model;
[0021] Figure 5 yes Figure 4 Schematic diagram at point A in the middle;
[0022] In the diagram: 1. Base plate; 2. Conveyor belt; 3. Guide rod; 4. Support column; 5. Top plate; 6. Printing cylinder; 7. Printing plate; 8. Lifting cylinder; 9. Lifting block; 10. Adjusting rod; 11. Arc groove; 12. Central shaft; 13. Fixing block; 14. Limiting groove; 15. Limiting block; 16. Fixing column; 17. Connecting rod; 18. Dust removal rod; 19. Lower semicircular block; 20. Electric push rod; 21. Upper semicircular block. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] like Figures 1 to 5 As shown, the flattening mechanism of the film printing machine of this utility model includes a base plate 1, a conveyor belt 2 set at the upper center of the base plate 1, extension blocks fixedly installed at the front and rear ends of the base plate 1, guide rods 3 fixedly installed between two corresponding extension blocks, lifting mechanisms set at both ends of the base plate 1, and multiple support columns 4 fixedly installed at the upper center of the base plate 1. A cleaning mechanism is set on the surface of the support columns 4. The film is placed on the conveyor belt 2, which is responsible for conveying the film forward. During the conveying process, the guide rods 3 play a role in calibrating and positioning the direction of the film to ensure that the film can smoothly enter the subsequent processing stage.
[0025] A top plate 5 is fixedly installed at the upper end of the support column 4. A printing cylinder 6 is fixedly installed at the center of the upper end of the top plate 5. The lower end of the printing cylinder 6 passes through the surface of the top plate 5 and is fixedly connected to the printing plate 7. The printing cylinder 6 drives the printing plate 7 to move downward, and the printing plate 7 presses down to print the film.
[0026] The lifting mechanism includes a lifting cylinder 8, a lifting block 9, and an adjusting rod 10. Support blocks are fixedly installed at both ends of the lower half of the base plate 1, and the lifting cylinder 8 is fixedly installed at the upper end of the support blocks. The upper end of the lifting cylinder 8 is fixedly connected to the lower end of the lifting block 9. Movable grooves are provided on both sides of the lifting block 9. A fixed shaft is fixedly installed inside the movable groove. One end of the adjusting rod 10 is sleeved on the surface of the fixed shaft. A sliding mechanism is provided at the other end of the adjusting rod 10. The movement of the lifting block 9 drives the adjusting rod 10 to move. One end of the adjusting rod 10 is sleeved in the movable groove of the lifting block 9 through the fixed shaft and can rotate flexibly.
[0027] Limiting grooves 14 are provided at both ends of the base plate 1 corresponding to the positions of the lifting blocks 9. A limiting block 15 is fixedly connected to the inner end of the lifting block 9. The limiting block 15 is slidably connected inside the limiting groove 14, driving the lifting block 9 to move vertically up and down along the limiting groove 14.
[0028] The sliding mechanism includes an arc groove 11, a central shaft 12, and a fixed block 13. The upper half of the surface of the adjusting rod 10 is provided with an arc groove 11. The central shaft 12 is slidably connected between the two arc grooves 11. The two ends of the central shaft 12 extend to the outside of the arc groove 11 and are fixedly connected to the limiting plate. The upper surface of the base plate 1 is fixedly connected to the fixed block 13 corresponding to the position of the central shaft 12. The surface of the central shaft 12 is fitted with a pressure roller between the two fixed blocks 13. The central shaft 12 slides in the inclined groove in the fixed block 13. As the lifting block 9 rises and falls, the central shaft 12 drives the pressure roller to move up and down and roll along the film surface.
[0029] A groove is provided at the center of the fixed block 13. The groove gradually slopes upward from the outside to the inside. The two ends of the central shaft 12 are slidably connected inside the groove. The central shaft 12 drives the pressure roller to move up and down and roll along the film surface. By utilizing the inclined characteristics of the groove, the pressure is adaptively adjusted to initially flatten the film and make the film surface smoother.
[0030] The cleaning mechanism includes a fixed column 16, a connecting rod 17, and a dust removal rod 18. The fixed column 16 is fixedly installed on the outer end surface of the two support columns 4. One end of the connecting rod 17 is sleeved on the surface of the fixed column 16, and the other end of the connecting rod 17 is sleeved on the surface of the dust removal rod 18. The surface of the dust removal rod 18 corresponds to the upper end of the conveyor belt 2 and a dust removal roller is sleeved on it. The connecting rod 17 is sleeved on the fixed column 16, and the dust removal rod 18 is sleeved inside the other end of the connecting rod 17. The surface of the dust removal rod 18 is sleeved with a dust removal roller. The dust removal roller is in close contact with the film surface and rolls as the film is conveyed, thereby cleaning the dust, impurities, etc. on the film surface and preventing these contaminants from affecting the printing quality.
[0031] Two upper semicircular blocks 21 are fixedly installed at the lower end of the connecting rod 17, and a lower semicircular block 19 is fixedly installed on the upper surface of the base plate 1 corresponding to the side end of 4. An electric push rod 20 is hinged between the upper semicircular block 21 and the lower semicircular block 19. When the electric push rod 20 extends or retracts, it will drive the cylinder connected to it to rotate. The cylinder pushes the connecting rod 17 to swing through the upper semicircular block 21.
[0032] Working Principle: The film is placed on the conveyor belt 2, which is responsible for transporting the film forward. During the transport process, the guide rod 3 plays a role in calibrating and positioning the film's orientation, ensuring that the film can smoothly enter the subsequent processing stage. The lifting cylinder 8 is activated, driving the lifting block 9 to move vertically up and down along the limiting groove 14. The movement of the lifting block 9 drives the adjusting rod 10 to move. One end of the adjusting rod 10 is sleeved in the movable groove of the lifting block 9 through a fixed shaft, allowing it to rotate flexibly. At the same time, the central shaft 12 in the sliding mechanism connected to the adjusting rod 10 slides in the inclined groove within the fixed block 13. As the lifting block 9 rises and falls, the central shaft 12 drives the pressure roller to move up and down and roll along the film surface. Utilizing the inclined characteristics of the groove, the pressure is adaptively adjusted to initially flatten the film, making the film surface smoother. (The last sentence appears to be incomplete and possibly refers to a separate process.) A connecting rod 17 is sleeved on the fixed column 16. When the electric push rod 20 extends or retracts, it drives the cylinder connected to it to rotate. The cylinder pushes the connecting rod 17 to swing through the upper semicircular block 21. The swing of the connecting rod 17 causes the dust removal roller sleeved on the dust removal rod 18 to stick tightly to the film surface and roll along with the film, thereby cleaning the dust, impurities and other contaminants on the film surface, preventing these contaminants from affecting the printing quality, and ensuring the clarity and beauty of the printed pattern. The printing cylinder 6 is started, driving the printing plate 7 to move downward. During the printing process, the pressure roller maintains pressure and sticks tightly to the film surface. This can prevent the film from wrinkling or shifting during the printing process, and can also make the ink adhere more evenly to the film, ensuring high-quality printing effect and completing the film printing work.
[0033] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0035] The foregoing has shown and described the basic principles, main features and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.
Claims
1. A flattening mechanism for a film printing machine, characterized in that, The system includes a base plate, a conveyor belt at the upper center of the base plate, extension blocks fixedly installed at the front and rear ends of the base plate, guide rods fixedly installed between two corresponding extension blocks, lifting mechanisms at both ends of the base plate, and multiple support columns fixedly installed at the upper center of the base plate. Cleaning mechanisms are provided on the surface of the support columns.
2. The flattening mechanism of a film printing machine according to claim 1, characterized in that, A top plate is fixedly installed at the upper end of the support column, and a printing cylinder is fixedly installed at the center of the upper end of the top plate. The lower end of the printing cylinder passes through the surface of the top plate and is fixedly connected to the printing plate.
3. The flattening mechanism of a film printing machine according to claim 1, characterized in that, The lifting mechanism includes a lifting cylinder, a lifting block, and an adjusting rod. Support blocks are fixedly installed at both ends of the lower half of the base plate, and a lifting cylinder is fixedly installed at the upper end of the support blocks. The upper end of the lifting cylinder is fixedly connected to the lower end of the lifting block. Movable grooves are provided on both sides of the lifting block, and a fixed shaft is fixedly installed inside the movable groove. One end of the adjusting rod is sleeved on the surface of the fixed shaft, and a sliding mechanism is provided at the other end of the adjusting rod.
4. The flattening mechanism of a film printing machine according to claim 3, characterized in that, Limiting grooves are provided at both ends of the base plate corresponding to the positions of the lifting blocks. The lifting block is fixedly connected to the limiting block at one inner end, and the limiting block is slidably connected inside the limiting groove.
5. The flattening mechanism of a film printing machine according to claim 3, characterized in that, The sliding mechanism includes an arc groove, a central shaft, and a fixing block. The upper half of the surface of the adjusting rod is provided with an arc groove. The central shaft is slidably connected between the two arc grooves. The two ends of the central shaft extend to the outside of the arc groove and are fixedly connected to the limiting plate. The upper surface of the base plate is fixedly connected to the fixing block at the position corresponding to the central shaft. The surface of the central shaft is fitted with a pressure roller between the two fixing blocks.
6. The flattening mechanism of a film printing machine according to claim 5, characterized in that, A groove is provided at the center of the fixed block, and the groove gradually slopes upward from the outside to the inside. The two ends of the central shaft are slidably connected inside the groove.
7. The flattening mechanism of a film printing machine according to claim 1, characterized in that, The cleaning mechanism includes a fixed column, a connecting rod, and a dust removal rod. The two supporting columns are fixedly installed on the outermost surface of the fixed column. One end of the connecting rod is sleeved on the surface of the fixed column, and the other end of the connecting rod is sleeved on the surface of the dust removal rod. The surface of the dust removal rod is sleeved on the upper end of the conveyor belt, and a dust removal roller is sleeved on it.
8. The flattening mechanism of a film printing machine according to claim 7, characterized in that, Two upper semicircular blocks are fixedly installed at the lower end of the connecting rod, and a lower semicircular block is fixedly installed at the corresponding side end of the upper surface of the base plate. An electric push rod is hinged between the upper and lower semicircular blocks.