Automatic film pressing device with limiting structure

Abstract

The utility model discloses an automatic film pressing device with a limiting structure, which is applied to the field of film pressing devices and comprises a rack, and an upper film unwinding device is mounted at the top of the rack; the upper film pressing assembly is arranged, the output end of the first air cylinder is used for pulling the connecting plate to extrude the film pressing spring, the resilience force of the film pressing spring pushes the connecting plate and the guide rod to drive the upper film pressing roller to press the upper film downwards, and flexible film pressing on a plate and the upper film is achieved through the resilience force of the film pressing spring. The stable pressure can be kept all the time for plates with the same thickness, and self-adaptive adjustment can be conducted according to the thicknesses of the plates. By arranging the calibration mechanism, the plate can be limited in the center of the supporting plate; when a plate enters the space between the upper film pressing roller and the lower film pressing roller, the two second air cylinders pull the two side push plates to be slightly away from the plate, the plate enters the space between the upper film and the lower film, the two side push plates can linearly guide the plate, and it is ensured that a packing material can be limited between the upper film and the lower film.

Description

Technical Field

[0001] The utility model relates to the field of film pressing devices, in particular to an automatic film pressing device with a limiting structure. Background Art

[0002] A laminating machine uses two rollers to press a film coated with glue onto the surface of the sheet to be coated, providing both protection and beautification. Existing laminating devices use a cylinder-directed forced lamination method to press the sheet and film together. While this forced lamination method ensures a consistent fit between the film and sheet, it cannot be adjusted randomly based on sheet thickness. For sheets of varying thickness, the cylinder data must be repeatedly adjusted, making operation very inconvenient. To address these issues, we propose an automatic laminating device with a position-limiting mechanism. Utility Model Content

[0003] The utility model aims to provide an automatic film pressing device with a limiting structure, which has the advantage of being able to perform flexible film pressing.

[0004] The above technical objectives of the present utility model are achieved through the following technical solutions: an automatic film pressing device with a limiting structure, comprising a frame, an upper film unwinding device is installed on the top of the frame, an upper film pressing assembly and a lower film roller and a calibration mechanism are respectively provided inside the frame, and a lower film unwinding device and a guide roller are also installed inside the calibration mechanism, the upper film pressing assembly comprises an upper film pressing roller, one end of the upper film pressing roller is provided with a motor 1, the output end of the motor 1 is installed with the upper film pressing roller through a coupling, the surface of the upper film pressing roller is rotatably connected to two guide rods through a bearing, the top of the upper film pressing roller is provided with a support plate slidably connected to the two guide rods, a cylinder 1 is installed on the top of the support plate, both sides of the support plate are fixedly connected to the frame, a connecting plate is installed at the output end of the cylinder 1, a plurality of film pressing springs are provided at the bottom of the connecting plate, and a connecting plate fixedly connected to the two guide rods is sleeved on the surface of the cylinder 1; it should be noted that the tensile force of the plurality of film pressing springs under normal conditions is greater than the total weight of the connecting plate, the upper film pressing roller, the motor 1, the guide rod and the cylinder 1.

[0005] By adopting the above technical solution, the upper pressure film assembly adopts a flexible pressure film structure, which can be randomly changed according to the thickness of the plate and has the characteristics of flexible pressure; by setting a calibration mechanism, the plate input device can be calibrated so that the plate is in the center position of the upper and lower membranes. During the input process, the plate can be limited and linearly guided to ensure that there will be no offset when entering between the upper and lower membranes.

[0006] The utility model is further configured as follows: the calibration mechanism includes a support plate, two side push plates are provided inside the support plate, the top of the support plate is fixedly connected to two fixed plates, the interior of the fixed plate is fixedly sleeved with cylinder 2, and the output end of cylinder 2 is installed with the support plate.

[0007] The above technical solution is used to calibrate the plate through the setting of the calibration mechanism to ensure that the plate can be located in the center position of the upper and lower films when entering between the upper and lower films for lamination.

[0008] The utility model is further configured as follows: a guide groove is opened on one side of the frame, and the interior of the guide groove is sleeved with the output end of the motor.

[0009] By adopting the above technical solution and setting the guide groove, the motor can be easily moved up and down.

[0010] The utility model is further configured as follows: a second motor is installed on one side of the frame, and an output end of the second motor is installed with the lower film roller.

[0011] By adopting the above technical solution, the second motor is provided to drive the lower film roller to rotate, thereby cooperating with the rotation of the upper film pressing roller to transport and press the upper and lower films respectively.

[0012] The utility model is further configured as follows: the interior of the fixed plate is slidably connected to two guide rods, one end of the guide rod is fixedly connected to the side push plate.

[0013] The above technical solution is adopted to increase the stability of cylinder 2 when pushing the side thrust plate to move by setting the guide rod.

[0014] The utility model is further configured as follows: the surface of the lower film roller is rotatably connected to the frame through a bearing, and the surface of the guide roller is rotatably connected to the frame through a bearing.

[0015] By adopting the above technical solution, the lower film roller and the guide roller rotate with the frame through the bearings, so that the lower film roller and the guide roller can rotate under friction.

[0016] The present invention is further configured as follows: a through groove is provided inside the connecting plate, and the diameter of the second motor is larger than the diameter of the first cylinder.

[0017] By adopting the above technical solution, by arranging the through groove, the cylinder 1 can pass through the connecting plate when the connecting plate descends.

[0018] In summary, the present invention has the following beneficial effects:

[0019] 1. The utility model sets up an upper film pressing assembly, uses the output end of the cylinder to pull the connecting plate to squeeze the film pressing spring, and allows the rebound force of the film pressing spring to push the connecting plate and the guide rod to drive the upper film pressing roller downward to press the upper film. The rebound force of the film pressing spring is used to achieve flexible film pressing of the plate and the upper film. Compared with the forced film pressing by the cylinder, it can avoid the problem of forced extrusion and deformation of the plate. At the same time, the rebound film pressing force of the film pressing spring is constant. When facing plates of the same thickness, it can always maintain a stable pressure, and it can be adaptively adjusted according to the thickness of the plate to meet the requirements of automatic film pressing. By setting up a calibration mechanism, using two cylinders to push two side push plates, the two side push plates push the plate left and right, and the plate can be confined to the center of the support plate; when the plate enters between the upper film pressing roller and the lower film roller, the two cylinders pull the two side push plates slightly away from the plate, and manually push the plate into the upper and lower films. The two side push plates can guide the plate in a straight line to ensure that the packaging material can be confined between the upper and lower films and no film pressing offset occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the support plate of the utility model;

[0022] Figure 3 It is a side view of the upper pressure membrane component of the utility model.

[0023] Reference numerals: 1, frame; 2, upper film unwinding device; 3, upper film pressing assembly; 31, upper film pressing roller; 32, motor 1; 33, guide rod; 34, support plate; 35, cylinder 1; 36, connecting plate; 37, film pressing spring; 38, connecting plate;

[0024] 4. Lower film roller;

[0025] 5. Calibration mechanism; 51. Support plate; 52. Side thrust plate; 53. Fixed plate; 54. Cylinder 2;

[0026] 6. Lower film unwinding device; 7. Guide roller; 8. Motor 2; 9. Guide rod; 10. Through slot. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below with reference to the accompanying drawings. Example 1:

[0028] refer to Figure 1 、 Figure 2 and Figure 3, an automatic film pressing device with a limiting structure, including a frame 1, an upper film unwinding device 2 is installed on the top of the frame 1, an upper film pressing assembly 3 and a lower film roller 4 and a calibration mechanism 5 are respectively provided inside the frame 1, and a lower film unwinding device 6 and a guide roller 7 are also installed inside the calibration mechanism 5, the upper film pressing assembly 3 includes an upper film pressing roller 31, one end of the upper film pressing roller 31 is provided with a motor 32, the output end of the motor 32 is installed with the upper film pressing roller 31 through a coupling, the surface of the upper film pressing roller 31 is rotatably connected to two guide rods 33 through bearings, the top of the upper film pressing roller 31 A support plate 34 is provided which is slidably connected to the two guide rods 33, a cylinder 35 is installed on the top of the support plate 34, both sides of the support plate 34 are fixedly connected to the frame 1, a connecting plate 36 is installed on the output end of the cylinder 35, a plurality of compression film springs 37 are provided at the bottom of the connecting plate 36, and a connecting plate 38 which is fixedly connected to the two guide rods 33 is provided on the surface of the cylinder 35, and the top and bottom ends of the compression film springs 37 are fixedly connected to the connecting plate 36 and the connecting plate 38 respectively through spring fixing parts; it should be noted that the tension of the plurality of compression film springs 37 in the normal state The force is greater than the total weight of the connecting plate 38, the upper film pressing roller 31, the motor 32, the guide rod 33 and the cylinder 35; by setting the upper film pressing component 3, the output end of the cylinder 35 is used to pull the connecting plate 36 to squeeze the film pressing spring 37, and the rebound force of the film pressing spring 37 pushes the connecting plate 38 and the guide rod 33 to drive the upper film pressing roller 31 downward to press the upper film, and the rebound force of the film pressing spring 37 is used to achieve flexible film pressing of the plate and the upper film. Compared with the forced film pressing by the cylinder, the problem of forced extrusion and deformation of the plate can be avoided, and at the same time, the rebound film pressing force of the film pressing spring 37 is constant. , it can always maintain stable pressure when facing plates of the same thickness; by setting up a calibration mechanism 5, using two cylinders 2 54 to push the two side push plates 52, and pushing the plate left and right by the two side push plates 52, the plate can be limited to the center of the support plate 51; when the plate enters between the upper film roller 31 and the lower film roller 4, the two cylinders 2 54 pull the two side push plates 52 slightly away from the plate, and manually push the plate into between the upper and lower films. The two side push plates 52 can guide the plate in a straight line to ensure that the packaging material can be limited between the upper and lower films, and there will be no film pressing offset.

[0029] Furthermore, the calibration mechanism 5 includes a support plate 51, two side push plates 52 are provided inside the support plate 51, two fixed plates 53 are fixedly connected to the top of the support plate 51, and a cylinder 2 54 is fixedly sleeved inside the fixed plate 53. The output end of the cylinder 2 54 is installed with the support plate 51. Through the setting of the calibration mechanism 5, it is used to calibrate the plate to ensure that the plate can be in the center position of the upper and lower membranes when entering between the upper and lower membranes for pressing.

[0030] Furthermore, a guide groove is provided on one side of the frame 1, and the interior of the guide groove is sleeved with the output end of the motor 1 32. The setting of the guide groove facilitates the up and down movement of the motor 1 32.

[0031] Furthermore, a motor 28 is installed on one side of the frame 1, and the output end of the motor 28 is installed with the lower film roller 4. Through the setting of the motor 28, it is used to drive the lower film roller 4 to rotate, thereby cooperating with the rotation of the upper film pressing roller 31 to transport and press the upper and lower films respectively.

[0032] Furthermore, two guide rods 9 are slidably connected inside the fixed plate 53, and one end of the guide rod 9 is fixedly connected to the side push plate 52. The setting of the guide rod 9 is used to increase the stability of the cylinder 2 54 when pushing the side push plate 52 to move.

[0033] Furthermore, the surface of the lower film roller 4 is rotatably connected to the frame 1 through a bearing, and the surface of the guide roller 7 is rotatably connected to the frame 1 through a bearing. The lower film roller 4 and the guide roller 7 rotate with the frame 1 through bearings, so that the lower film roller 4 and the guide roller 7 can both rotate under friction.

[0034] Furthermore, a through slot 10 is provided inside the connecting plate 38. The diameter of the motor 2 8 is larger than the diameter of the cylinder 1 35. By providing the through slot 10, the cylinder 1 35 can pass through the connecting plate 38 when the connecting plate 38 descends.

[0035] Brief description of the usage process: Under normal conditions, the film pressing spring 37 stores a distance between the upper film pressing roller 31 and the lower film pressing roller 4 at its bottom, which facilitates the upper and lower films to pass through the upper film pressing roller 31 and the lower film pressing roller 4 for docking.

[0036] When in use, the upper film is wound around the lower surface of the upper film pressing roller 31 by the upper film unwinding device 2; the lower film is wound around the lower surface of the guide roller 7 by the lower film unwinding device 6, and then wound around the upper surface of the lower film roller 4;

[0037] After the upper and lower films pass through the upper film pressing roller 31 and the lower film pressing roller 4 and are aligned, the cylinder 1 35 pulls the connecting plate 36 down to put pressure on the film pressing spring 37, so that the film pressing spring 37 produces a downward rebound force, and the connecting plate 38 drives the guide rod 33, motor 1 32 and the upper film pressing roller 31 to descend to press the upper and lower films. The motor 2 8 and the motor 1 32 are started respectively, and the lower film pressing roller 4 is driven to rotate counterclockwise, and the upper film pressing roller 31 is driven to rotate clockwise, pulling the upper and lower films for transportation, and performing a test film pressing to determine whether the upper and lower films will deviate during the film pressing process.

[0038] After the test pressure film, the plate is placed on the top of the support plate 51, and the two cylinders 54 are started synchronously to push the two side push plates 52 to approach and contact the plate. After contact, the two side push plates 52 will push the left and right sides of the plate to calibrate the plate at the center of the top of the support plate 51. The center is also the center of the upper and lower films; then the two cylinders 54 pull the two side push plates 52 away from the plate by 3mm-0.5mm, and the guide rod 33 and the motor 8 are started to drive the upper film roller 31 and the lower film roller 4 clockwise and counterclockwise respectively. As the plate rotates clockwise, the plate is pushed between the upper and lower films manually under the guidance of the two side push plates 52. The adhesion of the upper and lower films will pull the plate into between the upper film pressing roller 31 and the lower film roller 4. When the plate enters, the rebound force of the film pressing spring 37 will change due to the thickness of the plate (the upper film pressing roller 31 will push the guide rod 33 and the connecting plate 38 to squeeze the film pressing spring 37. At this time, the position of the upper film pressing roller 31 will change with the thickness of the plate). Then the film pressing spring 37 will always maintain a stable pressure according to the thickness of the plate.

[0039] When the plate enters between the upper film pressing roller 31 and the lower film pressing roller 4, the plate will not swing left and right due to the limitation of the two side push plates 52, thereby ensuring the stability of the plate during the film pressing process.

[0040] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An automatic film pressing device with a limiting structure, comprising a frame (1), characterized in that: The top of the frame (1) is provided with an upper film unwinding device (2), the interior of the frame (1) is provided with an upper film pressing assembly (3), a lower film roller (4) and a calibration mechanism (5), and the interior of the calibration mechanism (5) is provided with a lower film unwinding device (6) and a guide roller (7), the upper film pressing assembly (3) includes an upper film pressing roller (31), one end of the upper film pressing roller (31) is provided with a motor 1 (32), the output end of the motor 1 (32) is installed with the upper film pressing roller (31) through a coupling, and the surface of the upper film pressing roller (31) is rotated by a bearing. There are two guide rods (33) that are dynamically connected. The top of the upper film pressing roller (31) is provided with a support plate (34) that is slidably connected to the two guide rods (33). A cylinder 1 (35) is installed on the top of the support plate (34). Both sides of the support plate (34) are fixedly connected to the frame (1). A connecting plate (36) is installed at the output end of the cylinder 1 (35). A plurality of film pressing springs (37) are provided at the bottom of the connecting plate (36). The surface of the cylinder 1 (35) is provided with a connecting plate (38) that is fixedly connected to the two guide rods (33).

2. The automatic film pressing device with a limiting structure according to claim 1, characterized in that: The calibration mechanism (5) includes a support plate (51), two side push plates (52) are provided inside the support plate (51), two fixed plates (53) are fixedly connected to the top of the support plate (51), a second cylinder (54) is fixedly sleeved inside the fixed plate (53), and the output end of the second cylinder (54) is installed with the support plate (51).

3. The automatic film pressing device with a limiting structure according to claim 1, characterized in that: A guide groove is provided on one side of the frame (1), and the interior of the guide groove is sleeved with the output end of the motor 1 (32).

4. The automatic film pressing device with a limiting structure according to claim 1, characterized in that: A second motor (8) is installed on one side of the frame (1), and an output end of the second motor (8) is installed with the lower film roller (4).

5. The automatic film pressing device with a limiting structure according to claim 2, characterized in that: Two guide rods (9) are slidably connected inside the fixed plate (53), and one end of the guide rod (9) is fixedly connected to the side push plate (52).

6. The automatic film pressing device with a limiting structure according to claim 1, characterized in that: The surface of the lower film roller (4) is rotatably connected to the frame (1) via a bearing, and the surface of the guide roller (7) is rotatably connected to the frame (1) via a bearing.

7. The automatic film pressing device with a limiting structure according to claim 4, characterized in that: A through slot (10) is provided inside the connecting plate (38), and the diameter of the second motor (8) is larger than the diameter of the first cylinder (35).

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