Winding machine film stretching device capable of pressing film to make rope

Abstract

The utility model relates to the technical field of winding machines, in particular to a winding machine film stretching device capable of pressing a film to make a rope, which comprises a box body with a side opening, a box cover, a mounting plate and a material rack, a film inlet and a film outlet are formed between the box cover and the box body, and the box body is rotatably connected with a first stretching roller, a first film winding roller and a film outlet roller. The box cover is rotationally connected with a second stretching roller and a second film winding roller, a film pressing rope making wheel is arranged on the side, away from the second stretching roller, of the second film winding roller in a lifting mode, the box cover is provided with a lifting driving mechanism for driving the film pressing rope making wheel to ascend and descend, the first stretching roller is provided with a first transmission gear, and the second stretching roller is provided with a second transmission gear. The box body is provided with a first rotating driver, the first rotating driver drives the first transmission gear and the second transmission gear to rotate in opposite directions through the gear set, and the diameter of the first transmission gear is larger than that of the second transmission gear. Film penetration can be achieved by opening the box cover, film penetration is convenient, and the film can be pressed into a rope shape.

Description

Technical Field

[0001] The utility model relates to the technical field of winding machines, in particular to a film stretching device for a winding machine capable of pressing films and making ropes. Background Art

[0002] Wrapping machines are used to automatically wrap film around products, providing dust protection, securing, and packaging. The film stretching device is a core component of the wrapping machine. Among existing patents, the Chinese patent application number 200720052082.X, filed by the applicant on May 29, 2007, discloses a novel film stretching device for a wrapping machine. The device comprises a base frame with a film securing rod and a transmission rod securing frame. A transmission rod is mounted between the transmission rod securing frame and the base frame. A rotating frame is mounted on the transmission rod securing frame, and an auxiliary transmission rod is mounted on the rotating frame. The film passes between the auxiliary transmission rod and the transmission rod. While this patent facilitates film threading, it cannot compress the film into a rope shape. Therefore, this patent presents significant drawbacks, and a solution is urgently needed. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a film stretching device for a winding machine that can press film and make ropes.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A film stretching device for a winding machine capable of pressing films and making ropes, comprising a box body with a side opening, a box cover rotatably connected to the box body and capable of covering the side opening of the box body, a mounting plate connected to the bottom of the box body, and a material rack mounted on the mounting plate, a film inlet and a film outlet are formed between the box cover and the box body, the material rack is arranged near the film inlet, the inner cavity of the box body is rotatably connected to a first stretching roller, a first film winding roller and a film outlet roller, the inner side wall of the box cover is rotatably connected to a second stretching roller and a second film winding roller, a film pressing rope-making wheel is provided on the side of the second film winding roller away from the second stretching roller, and the inner side wall of the box cover is provided with a device for driving the film pressing rope-making wheel to rise and fall The lifting drive mechanism, the first stretching roller, the second stretching roller, the first film winding roller, the second film winding roller and the film discharge roller are arranged in sequence, the film discharge roller is located at the film discharge port, the film pressing rope wheel is located between the second film winding roller and the film discharge roller, the top of the first stretching roller is equipped with a first transmission gear, the top of the second stretching roller is equipped with a second transmission gear, the top of the inner cavity of the box is equipped with a first rotation driver, the first rotation driver drives the first transmission gear and the second transmission gear to rotate via the gear set, the rotation direction of the first transmission gear is opposite to the rotation direction of the second transmission gear, and the diameter of the first transmission gear is larger than the diameter of the second transmission gear.

[0006] Furthermore, the inner side wall of the box cover is rotatably connected to a film feed roller, and the film feed roller is located at the film feed port.

[0007] Furthermore, the gear set includes a driving gear mounted on the rotating shaft of the first rotating driver and a driven gear rotatably connected to the top of the inner cavity of the box body. The driven gear is respectively engaged with the driving gear and the first transmission gear for transmission, and the driving gear is engaged with the second transmission gear for transmission.

[0008] Furthermore, the lifting drive mechanism includes a screw rod vertically connected to the inner side wall of the box cover, a movable nut threadedly sleeved on the outside of the screw rod, a lifting seat mounted on the movable nut and sliding up and down with the inner side wall of the box cover, a shaft mounted on the lifting seat, and a second rotating driver mounted on the inner side wall of the box cover and used to drive the screw rod to rotate, and the film pressing rope wheel is rotatably sleeved on the outside of the shaft rod.

[0009] Furthermore, an elastic limiting block is installed on the inner cavity side wall of the box body, and an interfering block for interfering with the elastic limiting block is provided on the inner side wall of the box cover.

[0010] The beneficial effects of the utility model are as follows: in actual application, the film roll is installed on the material rack, the box cover is opened, the film of the film roll passes through the opened box cover and the box body, and is output from the film outlet. At this time, the box cover can be closed, and the box cover is closed at the side opening of the box body, so that the film is wound around the first stretching roller, the second stretching roller, the first film winding roller, the second film winding roller and the film outlet roller in sequence. When the film is wound on the product, the first rotation driver drives the gear set to drive the first transmission gear and the second transmission gear to rotate in opposite directions. Since the diameter of the first transmission gear is larger than the diameter of the second transmission gear, the speed of the first transmission gear is less than the speed of the second transmission gear, so that the speed of the first stretching roller is less than the speed of the second stretching roller. Under the action of the speed difference between the first stretching roller and the second stretching roller, the film is stretched. When the winding and packaging of the product is about to be completed, the lifting drive mechanism drives the film pressing rope wheel to descend, so that the film pressing rope wheel presses the film into a rope shape from top to bottom, so that the rope-shaped film is wrapped around the product to achieve the bundling effect. The utility model can penetrate the film by opening the box cover, which is convenient for penetrating the film and is beneficial to improving the efficiency of replacing the film material. The film can also be pressed into a rope shape, which is beneficial to improving the stability of the wrapped packaging product. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model in the open state.

[0012] Figure 2 It is a three-dimensional structural schematic diagram of the lifting drive mechanism and the film pressing rope wheel of the utility model.

[0013] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model in a closed state.

[0014] Figure 4It is a schematic diagram of the three-dimensional structure of the utility model in a closed state from another perspective.

[0015] Description of reference numerals:

[0016] 1. Side opening; 2. Box body; 3. Box cover; 4. Mounting plate; 5. Material rack; 6. Film inlet; 7. Film outlet; 8. First stretching roller; 9. First film winding roller; 10. Film outlet roller; 11. Second stretching roller; 12. Second film winding roller; 13. Film pressing rope pulley; 14. Lifting drive mechanism; 15. First transmission gear; 16. Second transmission gear; 17. First rotary driver; 18. Gear set; 19. Film inlet roller; 20. Driving gear; 21. Driven gear; 22. Screw; 23. Moving nut; 24. Lifting seat; 25. Shaft; 26. Second rotary driver; 27. Resistance block. DETAILED DESCRIPTION

[0017] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0018] like Figures 1 to 4 As shown, the utility model provides a film stretching device for a winding machine capable of pressing films and making ropes, which includes a box body 2 with a side opening 1, a box cover 3 rotatably connected to the box body 2 and capable of covering the side opening 1 of the box body 2, a mounting plate 4 connected to the bottom of the box body 2 and a material rack 5 installed on the mounting plate 4, a film inlet 6 and a film outlet 7 are formed between the box cover 3 and the box body 2, the material rack 5 is arranged near the film inlet 6, the inner cavity of the box body 2 is rotatably connected with a first stretching roller 8, a first film winding roller 9 and a film outlet roller 10, the inner side wall of the box cover 3 is rotatably connected with a second stretching roller 11 and a second film winding roller 12, a film pressing and rope making wheel 13 is provided on the side of the second film winding roller 12 away from the second stretching roller 11, and the inner side wall of the box cover 3 is provided with a film pressing and rope making wheel 13 for driving the film pressing and rope making wheel 13 to rise and fall The lifting drive mechanism 14, the first stretching roller 8, the second stretching roller 11, the first film winding roller 9, the second film winding roller 12 and the film discharge roller 10 are arranged in sequence, the film discharge roller 10 is located at the film discharge port 7, and the film pressing rope wheel 13 is located between the second film winding roller 12 and the film discharge roller 10. The top of the first stretching roller 8 is equipped with a first transmission gear 15, and the top of the second stretching roller 11 is equipped with a second transmission gear 16. The top of the inner cavity of the box body 2 is equipped with a first rotation driver 17, and the first rotation driver 17 drives the first transmission gear 15 and the second transmission gear 16 to rotate via the gear set 18. The rotation direction of the first transmission gear 15 is opposite to that of the second transmission gear 16, and the diameter of the first transmission gear 15 is larger than the diameter of the second transmission gear 16.

[0019] In actual application, the film roll is installed on the material rack 5, the box cover 3 is opened, the film of the film roll passes through the opened box cover 3 and the box body 2, and is output from the film outlet 7. At this time, the box cover 3 can be closed, and the box cover 3 is closed at the side opening 1 of the box body 2, so that the film is wound around the first stretching roller 8, the second stretching roller 11, the first film winding roller 9, the second film winding roller 12 and the film outlet roller 10 in sequence. When the film is wound on the product, the first rotation driver 17 drives the gear set 18 to drive the first transmission gear 15 and the second transmission gear 16 to rotate in opposite directions. The diameter of the gear 15 is larger than the diameter of the second transmission gear 16, so the rotation speed of the first transmission gear 15 is lower than the rotation speed of the second transmission gear 16, so that the rotation speed of the first stretching roller 8 is lower than the rotation speed of the second stretching roller 11. Under the action of the speed difference between the first stretching roller 8 and the second stretching roller 11, the film is stretched. When the wrapping packaging of the product is about to be completed, the lifting drive mechanism 14 drives the film pressing rope wheel 13 to descend, so that the film pressing rope wheel 13 presses the film into a rope shape from top to bottom, so that the rope-shaped film is wrapped around the product to achieve the bundling effect. The utility model can penetrate the film by opening the box cover 3, and the film penetration is convenient, which is conducive to improving the efficiency of replacing the film material. The film can be pressed into a rope shape, which is conducive to improving the stability of the wrapped packaging product.

[0020] In this embodiment, the inner side wall of the box cover 3 is rotatably connected to a film feed roller 19, which is located at the film feed port 6. In actual application, the film is wound around the film feed roller 19 and then around the first stretching roller 8, which is beneficial to improving the stability of the film movement.

[0021] In this embodiment, the gear set 18 includes a driving gear 20 mounted on the rotating shaft of the first rotary driver 17, and a driven gear 21 rotatably connected to the top of the inner cavity of the housing 2. The driven gear 21 meshes with the driving gear 20 and the first transmission gear 15, respectively, and the driving gear 20 meshes with the second transmission gear 16. Specifically, the first rotary driver 17 can be a motor. In actual use, the first rotary driver 17 drives the driving gear 20 to rotate. The rotating driving gear 20 drives the driven gear 21 and the second transmission gear 16 to rotate. The driven gear 21 drives the first transmission gear 15 to rotate, causing the first stretching roller 8 and the second stretching roller 11 to rotate in opposite directions.

[0022] In this embodiment, the lifting drive mechanism 14 includes a screw rod 22 that is vertically rotatably connected to the inner side wall of the box cover 3, a movable nut 23 that is threadedly sleeved on the outside of the screw rod 22, a lifting seat 24 that is mounted on the movable nut 23 and slides up and down with the inner side wall of the box cover 3, a shaft 25 mounted on the lifting seat 24, and a second rotation driver 26 that is mounted on the inner side wall of the box cover 3 and is used to drive the screw rod 22 to rotate. The film pressing rope wheel 13 is rotatably sleeved on the outside of the shaft 25; specifically, the second rotation driver 26 can be a motor.

[0023] In actual application, the second rotary driver 26 drives the screw 22 to rotate. Since the lifting seat 24 can only be lifted and slid along the inner wall of the box cover 3, the rotating screw 22 drives the moving nut 23 to lift and lower the lifting seat 24, the shaft 25 and the film pressing rope wheel 13. The lifting film pressing rope wheel 13 can press the film into a rope shape.

[0024] In this embodiment, an elastic stopper is installed on the inner sidewall of the box body 2, and an interfering block 27 for interfering with the elastic stopper is provided on the inner sidewall of the box cover 3. The elastic stopper is provided corresponding to the interfering block 27. Specifically, the elastic stopper can be a rubber block.

[0025] When the box cover 3 is closed on the box body 2, the elastic limiting block contacts the abutment block 27. Since the elastic limiting block has a certain elasticity, the elastic limiting block plays a role of buffering protection and reducing noise.

[0026] All technical features in this embodiment can be freely combined according to actual needs.

[0027] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A film stretching device for a winding machine capable of pressing film and making ropes, characterized by: The invention comprises a box body (2) having a side opening (1), a box cover (3) rotatably connected to the box body (2) and capable of covering the side opening (1) of the box body (2), a mounting plate (4) connected to the bottom of the box body (2), and a material rack (5) mounted on the mounting plate (4); a film inlet (6) and a film outlet (7) are formed between the box cover (3) and the box body (2); the material rack (5) is arranged near the film inlet (6); the inner cavity of the box body (2) is rotatably connected to a first stretching roller (8), a first film winding roller (9) and a film outlet roller (10); the inner side wall of the box cover (3) is rotatably connected to a second stretching roller (11) and a second film winding roller (12); a film pressing rope pulley (13) is provided on the side of the second film winding roller (12) away from the second stretching roller (11) for lifting and lowering; and a lifting drive mechanism (14) for driving the film pressing rope pulley (13) to lift and lower is installed on the inner side wall of the box cover (3). The first stretching roller (8), the second stretching roller (11), the first film winding roller (9), the second film winding roller (12) and the film discharge roller (10) are arranged in sequence. The film discharge roller (10) is located at the film discharge port (7). The film pressing rope wheel (13) is located between the second film winding roller (12) and the film discharge roller (10). The top of the first stretching roller (8) is equipped with a first transmission gear (15). The top of the second stretching roller (11) is equipped with a second transmission gear (16). The top of the inner cavity of the box body (2) is equipped with a first rotation driver (17). The first rotation driver (17) drives the first transmission gear (15) and the second transmission gear (16) to rotate via a gear set (18). The rotation direction of the first transmission gear (15) is opposite to that of the second transmission gear (16). The diameter of the first transmission gear (15) is larger than that of the second transmission gear (16).

2. The film stretching device for a wrapping machine capable of film pressing and rope making according to claim 1, characterized in that: The inner side wall of the box cover (3) is rotatably connected to a film feed roller (19), and the film feed roller (19) is located at the film feed port (6).

3. The film stretching device for a wrapping machine capable of film pressing and rope making according to claim 1, characterized in that: The gear set (18) includes a driving gear (20) mounted on the rotating shaft of the first rotating driver (17) and a driven gear (21) rotatably connected to the top of the inner cavity of the housing (2). The driven gear (21) is respectively engaged with the driving gear (20) and the first transmission gear (15) for transmission, and the driving gear (20) is engaged with the second transmission gear (16) for transmission.

4. The film stretching device for a wrapping machine capable of film pressing and rope making according to claim 1, characterized in that: The lifting drive mechanism (14) comprises a screw rod (22) vertically connected to the inner side wall of the box cover (3), a movable nut (23) threadedly sleeved on the outside of the screw rod (22), a lifting seat (24) mounted on the movable nut (23) and slidingly lifting and lowering with the inner side wall of the box cover (3), a shaft (25) mounted on the lifting seat (24), and a second rotating driver (26) mounted on the inner side wall of the box cover (3) and used for driving the screw rod (22) to rotate. The film pressing rope wheel (13) is rotatably sleeved on the outside of the shaft (25).

5. The film stretching device for a wrapping machine capable of film pressing and rope making according to claim 1, characterized in that: An elastic limiting block is installed on the inner cavity side wall of the box body (2), and an abutting block (27) for abutting against the elastic limiting block is provided on the inner side wall of the box cover (3).

Images