On-device servoed membrane retraction mechanism

Abstract

The utility model provides a kind of servo membrane pulling mechanism on equipment, including shell, linear slide rail, linear motion mechanism, roller assembly, driving membrane pulling shaft, driven membrane pulling shaft, guide mould bar and servo reducer motor, the outer end of motor shaft of servo reducer motor is equipped with handle, the inner end of motor shaft of servo reducer motor is equipped with driving gear, the one end of driving membrane pulling shaft is equipped with first driven gear, the one end of driven membrane pulling shaft is equipped with second driven gear, first driven gear and second driven gear are engaged with the two sides of driving gear respectively, fourth roller assembly vertically downwardly conveys film to between driving membrane pulling shaft and driven membrane pulling shaft;The utility model has the beneficial effects that: through linear motion mechanism, one-key adjustment angle seal position can be adjusted, driving membrane pulling shaft and driven membrane pulling shaft are reversely moved clamping film by motor drive, can be controlled by handle Two membrane pulling shafts open and close, simplify threading film and adjust process, reduce operation difficulty, solve the problem of film slip.

Description

Technical Field

[0001] This utility model relates to the field of film traction equipment technology, specifically to a servo film traction mechanism on the equipment. Background Technology

[0002] In film processing and packaging equipment, the servo film pulling mechanism is the core component for achieving precise film roll transfer and is widely used in the pulling operations of materials such as PE film rolls.

[0003] Existing servo film pulling mechanisms often experience problems such as inaccurate traction position, film roll deviation, and traction slippage during use, leading to decreased processing accuracy and affecting product quality. This is mainly due to insufficient friction coefficient of the film pulling shaft surface in existing mechanisms, lack of effective limiting and anti-deviation structures, and unstable transmission of traction driving force, making it impossible to achieve precise positioning and stable transmission of the film roll. Summary of the Invention

[0004] To address the problems of slippage, deviation, and large traction errors in existing film traction technologies, this invention provides a servo-driven film traction mechanism on a device, which simplifies adjustment operations and achieves precise positioning of the film traction.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A servo film-pulling mechanism on a machine includes a housing, a linear guide rail, a linear motion mechanism, a roller assembly, an active film-pulling shaft, a driven film-pulling shaft, a guide rod, and a servo reducer motor. The roller assembly includes a first roller assembly, a second roller assembly, a third roller assembly, and a fourth roller assembly. The first roller assembly is located at the upper end of the housing. The linear guide rail is fixed to the upper end of the housing in the front-rear direction. The first roller assembly moves back and forth along the linear guide rail via the linear motion mechanism, which is equipped with an angle sealing adjustment mechanism. The second roller assembly is located at the front of the housing and is lower than the first roller assembly. The first roller assembly conveys the film roll from top to bottom to the upper end of the second roller assembly. The second roller assembly tilts downwards from front to back to convey the film roll to the upper end of the fourth roller assembly. The third roller assembly supports the lower end of the film roll from the second roller assembly. The active film pulling shaft, the driven film pulling shaft, and the servo reducer motor are all located at the lower part of the film pulling mechanism. The outer end of the motor shaft of the servo reducer motor is provided with a handle, and the inner end of the motor shaft of the servo reducer motor is provided with an active gear. One end of the active film pulling shaft is provided with a first driven gear, and one end of the driven film pulling shaft is provided with a second driven gear. The first driven gear and the second driven gear mesh with the two sides of the active gear, respectively. The fourth roller assembly vertically conveys the film roll downwards between the active film pulling shaft and the driven film pulling shaft.

[0006] Furthermore, the housing includes a left side plate and a right side plate arranged symmetrically on the left and right sides, and the active film-pulling shaft and the driven film-pulling shaft traverse the left side plate and the right side plate.

[0007] Furthermore, the upper roller of the second roller assembly is provided with a first rotating shaft, the left and right ends of the first rotating shaft are fixedly connected to the left side plate and the right side plate respectively, the fourth roller assembly and the second roller assembly are hinged together, the upper roller of the fourth roller assembly is provided with a second rotating shaft, the left and right ends of the second rotating shaft are fixedly connected to the left side plate and the right side plate respectively.

[0008] Furthermore, a tension spring assembly is provided on the rear side of the fourth roller assembly, and the fourth roller assembly is movably connected to the left side plate and the right side plate through the tension spring assembly.

[0009] Furthermore, a left limiting block and a right limiting block are respectively provided on the rear side of the left side plate and the right side plate. The left limiting block and the right limiting block clamp the active film pulling shaft and the driven film pulling shaft through a spring mechanism.

[0010] Furthermore, a color mark sensor is provided on the outer side of the second roller assembly, and the color mark sensor positions the roll film for printing color marks.

[0011] Furthermore, a plurality of guide rods are provided vertically between the active film-drawing shaft and the driven film-drawing shaft. The guide rods are used to detect film roll stacking and trigger an alarm shutdown.

[0012] The beneficial effects of this utility model are as follows: the corner seal position can be adjusted with one key through the linear motion mechanism; the active film pulling shaft and the driven film pulling shaft move in opposite directions through the motor to clamp the film roll; the opening and closing of the two film pulling shafts can be controlled by the handle, which simplifies the film threading and adjustment process, reduces the difficulty of operation, and solves the problem of film roll slippage. Attached Figure Description

[0013] Figure 1 This is a front structural diagram of the present invention; Figure 2 This is a schematic diagram of the film roll of this utility model.

[0014] Figure label: 1. Linear guide rail; 2. Linear motion mechanism; 3. First roller assembly; 4. Second roller assembly. 5 Fourth roller assembly, 6 Third roller assembly, 7 Color mark assembly, 8 First rotating shaft, 9 Second rotating shaft, 10. Active film pulling shaft, 11. Driven film pulling shaft, 12. Connecting rod, 13. Left limit block, 14. Right limit block. 15. Stop block, 16. Handle, 17. Limit rod, 18. Servo reducer motor, 19. Left side plate, 20. Right side plate. 21 Guide rod, 22 Tension spring, 23 Tension spring fixing shaft. Detailed Implementation

[0015] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] This embodiment discloses a servo-driven film-pulling mechanism on a device, such as... Figure 1 As shown, it includes a housing, a linear guide rail 1, a linear motion mechanism 2, a roller assembly, an active film-pulling shaft 10, a driven film-pulling shaft 11, a guide rod 21, and a servo reducer motor 18. The housing includes a left side plate 19 and a right side plate 20 arranged symmetrically on the left and right sides.

[0017] The roller assembly includes a first roller assembly 3, a second roller assembly 4, a third roller assembly 6, and a fourth roller assembly 5. The first roller assembly 3 is located at the upper end of the machine housing. The linear slide rail 1 is fixed at the upper end of the machine housing in the front-back direction. The first roller assembly 3 moves back and forth along the linear slide rail 1 through the linear motion mechanism 2. The linear motion mechanism 2 is equipped with a film roll corner sealing adjustment mechanism.

[0018] The second roller assembly 4 is located on the front side of the machine housing and is lower than the first roller assembly 3. The first roller assembly 3 conveys the film roll from top to bottom to the upper end of the second roller assembly 4. The second roller assembly 4 conveys the film roll from front to back at an angle to the upper end of the fourth roller assembly 5. A color mark sensor 7 is provided on the outer side of the second roller assembly 4. The color mark sensor 7 positions the film roll for printing color marks.

[0019] The third roller assembly 6 supports the lower end of the film winding of the second roller assembly 4. The upper roller of the second roller assembly 4 is provided with a first rotating shaft 8. The left and right ends of the first rotating shaft 8 are fixedly connected to the left side plate 19 and the right side plate 20, respectively. The fourth roller assembly 5 is hinged to the second roller assembly 4.

[0020] The upper end of the fourth roller assembly 5 is provided with a second rotating shaft 9. The left and right ends of the second rotating shaft 9 are fixedly connected to the left side plate 19 and the right side plate 20, respectively. The rear side of the fourth roller assembly 5 is provided with a tension spring assembly. The fourth roller assembly 5 is movably connected to the left side plate 19 and the right side plate 20 through the tension spring assembly.

[0021] The tension spring assembly consists of a tension spring 22 and a tension spring fixing shaft 23. One end of the tension spring fixing shaft 25 is connected to the lower part of the fourth roller assembly 5, and the other end of the tension spring fixing shaft 25 is hinged to the left side plate 19 and the right side plate 20. The lower end of the tension spring 22 is fixed on the tension spring fixing shaft 23, and the upper end of the tension spring 22 is fixed on the left side plate 19 and the right side plate 20. The tension spring assembly can increase the overall shock absorption capacity of the roller assembly.

[0022] The active film-pulling shaft 10, the driven film-pulling shaft 11, and the servo reducer motor 18 are all located at the lower part of the film-pulling mechanism. The surfaces of the active film-pulling shaft 10 and the driven film-pulling shaft 11 are made of rubber to increase the coefficient of friction. The outer end of the motor shaft of the servo reducer motor 18 is provided with a handle 16, and the inner end of the motor shaft of the servo reducer motor 18 is provided with an active gear. One end of the active film-pulling shaft 10 is provided with a first driven gear, and one end of the driven film-pulling shaft 11 is provided with a second driven gear. The first driven gear and the second driven gear mesh with the two sides of the active gear, respectively. The fourth roller assembly 5 vertically and downwardly conveys the film roll between the active film-pulling shaft 10 and the driven film-pulling shaft 11.

[0023] Several guide rods 21 are arranged vertically between the active film pulling shaft 10 and the driven film pulling shaft 11. The guide rods 21 are used to guide the film roll vertically. At the same time, sensors are set to detect film roll stacking and trigger alarm shutdown.

[0024] The active film-pulling shaft 10 and the driven film-pulling shaft 11 traverse the left side plate 19 and the right side plate 20. The left side plate 19 and the right side plate 20 are respectively provided with a left limiting block 13 and a right limiting block 14. The left limiting block 13 and the right limiting block 14 clamp the active film-pulling shaft 10 and the driven film-pulling shaft 11 through a spring mechanism to prevent slippage.

[0025] In this embodiment, rotating the handle 16 in the forward direction opens the film pulling shaft 10 and the driven film pulling shaft 11, and after threading the film roll, pressing the handle 16 completes the fixation.

[0026] The assembly process in this embodiment is as follows: According to... Figure 1 The structure shown involves assembling the roller components and installing them between the left side plate 19 and the right side plate 20 via the first rotating shaft 8 and the second rotating shaft 9. The active film-pulling shaft 10, the driven film-pulling shaft 11, and the servo reducer motor 18 are connected by gear transmission. The servo reducer motor 18 is assembled and fixed. Then, the left limit block 13, the right limit block 14, and the handle 16 are installed to ensure that the spring mechanisms of the left limit block 13 and the right limit block 14 clamp the active film-pulling shaft 10 and the driven film-pulling shaft 11. Finally, the guide rod 21, the color mark assembly 7, and the tension spring 22 are assembled.

[0027] When using, refer to Figure 2 In the film winding direction, open handle 16 to separate the active film pulling shaft 10 from the driven film pulling shaft 11. Pass the PE film through each component in sequence and place it between the active film pulling shaft 10 and the driven film pulling shaft 11. Tighten handle 16 to complete the fixation. According to the processing requirements, adjust the corner seal position through linear motion mechanism 2, start servo reducer motor 18, and the mechanism starts to pull the film. Color mark component 7 is positioned in real time, and the sensor of guide rod 21 monitors the film winding status to ensure that the film is stably transmitted vertically downward.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A servo-driven film-pulling mechanism on a device, characterized in that, The system includes a housing, a linear guide rail (1), a linear motion mechanism (2), a roller assembly, an active film-pulling shaft (10), a driven film-pulling shaft (11), a guide rod (21), and a servo reducer motor (18). The roller assembly includes a first roller assembly (3), a second roller assembly (4), a third roller assembly (6), and a fourth roller assembly (5). The first roller assembly (3) is located at the upper end of the housing. The linear guide rail (1) is fixed to the upper end of the housing in the front-back direction. The first roller assembly (3) moves back and forth along the linear guide rail (1) through the linear motion mechanism (2). The linear motion mechanism (2) is equipped with an angle sealing adjustment mechanism. The second roller assembly (4) is located on the front side of the housing and is lower than the first roller assembly (3). The first roller assembly (3) conveys the film roll from top to bottom to the upper end of the second roller assembly (4). The second roller assembly (4) tilts downward from front to back to convey the film roll to the upper end of the fourth roller assembly (5). The third roller assembly (6) supports the lower end of the film roll of the second roller assembly (4). The active film pulling shaft (10), the driven film pulling shaft (11), and the servo reducer motor (18) are all located at the lower part of the film pulling mechanism. The outer end of the motor shaft of the servo reducer motor (18) is provided with a handle (16). The inner end of the motor shaft of the servo reducer motor (18) is provided with an active gear. One end of the active film pulling shaft (10) is provided with a first driven gear. One end of the driven film pulling shaft (11) is provided with a second driven gear. The first driven gear and the second driven gear mesh with the two sides of the active gear, respectively. The fourth roller assembly (5) vertically conveys the film roll downward between the active film pulling shaft (10) and the driven film pulling shaft (11).

2. The servo-driven film-pulling mechanism on the equipment according to claim 1, characterized in that, The housing includes a left side plate (19) and a right side plate (20) arranged symmetrically on the left and right sides, and the active film-pulling shaft (10) and the driven film-pulling shaft (11) traverse the left side plate (19) and the right side plate (20).

3. The servo-driven film-pulling mechanism on the equipment according to claim 2, characterized in that, The upper roller of the second roller assembly (4) is provided with a first rotating shaft (8), and the left and right ends of the first rotating shaft (8) are fixedly connected to the left side plate (19) and the right side plate (20) respectively. The fourth roller assembly (5) and the second roller assembly (4) are hinged together. The upper roller of the fourth roller assembly (5) is provided with a second rotating shaft (9), and the left and right ends of the second rotating shaft (9) are fixedly connected to the left side plate (19) and the right side plate (20) respectively.

4. The servo-driven film-pulling mechanism on the equipment according to claim 3, characterized in that, The fourth roller assembly (5) is provided with a tension spring assembly on its rear side, and the fourth roller assembly (5) is movably connected to the left side plate (19) and the right side plate (20) through the tension spring assembly.

5. The servo-driven film-pulling mechanism on the equipment according to claim 2, characterized in that, The left side plate (19) and the right side plate (20) are respectively provided with a left limiting block (13) and a right limiting block (14). The left limiting block (13) and the right limiting block (14) clamp the active film pulling shaft (10) and the driven film pulling shaft (11) through a spring mechanism.

6. The servo-driven film-pulling mechanism on the equipment according to claim 1, characterized in that, The second roller assembly (4) is provided with a color mark sensor (7) on its outer side, which positions the roll film for printing color marks.

7. The servo-driven film-pulling mechanism on the equipment according to claim 1, characterized in that, A plurality of guide rods (21) are provided vertically between the active film pulling shaft (10) and the driven film pulling shaft (11). The guide rods (21) are used to detect film roll stacking and trigger an alarm shutdown.

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