Winding machine film material stretching device capable of compressing film material

Abstract

The utility model relates to the technical field of winding machines, in particular to a winding machine film material stretching device capable of compressing film materials, which comprises a bottom plate, a box body, a rotation driving mechanism, a first stretching roller, a second stretching roller and a plurality of film guide rollers, the rotating driving mechanism is used for driving the first stretching roller and the second stretching roller to rotate in opposite directions, the rotating speed of the first stretching roller is smaller than that of the second stretching roller, a film inlet and a film outlet are formed in the two sides of the box body respectively, the second stretching roller is located on the side, away from the film inlet, of the first stretching roller, and the bottom plate is provided with a material rolling frame and a film material compressing mechanism. The material rolling frame is located on one side of the film inlet, the film material compressing mechanism is located on one side of the film outlet, and the film material compressing mechanism is used for compressing film materials output from the film outlet in the width direction. According to the utility model, the wound and enveloped film material can be compressed to make a rope, and the quality and the stability of a film material packaging product are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of winding machines, in particular to a stretching device for the film material of a winding machine capable of compressing the film material. Background Art

[0002] The winding machine uses film material to wind and wrap the product for packing. Usually, two stretching rollers with different rotating speeds are used to stretch the film material to two to three times, and then wind it on the product to achieve the purpose of cost saving. Among them, the film material stretching device is the core component of the winding machine.

[0003] In the existing patent, the Chinese patent document with the application number 202122920319.4 discloses a stretching mechanism for the winding film of a packing machine, including a machine shell. A driving motor, a first stretching roller and a second stretching roller are arranged in the machine shell. The driving motor is respectively in transmission connection with the first stretching roller and the second stretching roller through a gear chain. A middle auxiliary roller is arranged in the machine shell between the first stretching roller and the second stretching roller. Edge auxiliary rollers are arranged in the machine shell on the sides of the first stretching roller and the second stretching roller away from the middle auxiliary roller. A positioning rod is arranged in the machine shell above the middle auxiliary roller. A rotating shaft is rotatably arranged at the discharge end of the machine shell. A swing arm is arranged at the end of the rotating shaft. One end of the swing arm abuts against the power switch of the driving motor, and the other end is provided with a discharge roller. A tension spring is connected between the end of the swing arm close to the power switch and the positioning rod. This patent document can realize the stretching of the film material, and through the setting of the limiting rod, the rotation angle of the swing arm is limited to avoid the swing arm rotating too much, but it cannot compress the film material to achieve the effect of making a rope.

[0004] Therefore, the defect is very obvious and a solution is urgently needed. Summary of the Utility Model

[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a stretching device for the film material of a winding machine capable of compressing the film material.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A winding machine film stretching device capable of compressing film material, which includes a bottom plate, a box body installed on the bottom plate, a rotation driving mechanism installed on the top of the box body, and a first stretching roller, a second stretching roller and a plurality of film guiding rollers respectively and rotatably connected in parallel in the box body. The first stretching roller and the second stretching roller are respectively located between two adjacent film guiding rollers. The rotation driving mechanism is used to drive the first stretching roller and the second stretching roller to rotate in opposite directions. The rotation speed of the first stretching roller is less than that of the second stretching roller. An inlet film port and an outlet film port are respectively arranged on both sides of the box body. The second stretching roller is located on the side of the first stretching roller away from the inlet film port. The bottom plate is equipped with a coil rack and a film material compressing mechanism. The coil rack is located on one side of the inlet film port, and the film material compressing mechanism is located on one side of the outlet film port. The film material compressing mechanism is used to compress the film material output at the outlet film port in the width direction.

[0008] Further, the film material compressing mechanism includes a lifting driving module installed on one side of the bottom plate or the box body close to the outlet film port, a lifting plate installed on the lifting end of the lifting driving module, and a film pressing wheel rotatably connected to the lifting plate. The film pressing wheel is arranged to lift outside the outlet film port, and the axis of the film pressing wheel is perpendicular to the axis of the film guiding roller.

[0009] Further, the bottom plate is rotatably connected with an outlet film roller, and the outlet film roller is located between the outlet film port and the film pressing wheel.

[0010] Further, the lifting driving module includes a mounting seat installed on the bottom plate or the box body, a lead screw rotatably connected to the mounting seat, a moving nut threadedly connected to the lead screw, and a first motor installed on the mounting seat and used to drive the lead screw to rotate. The moving nut is provided with a first lifting plane, the mounting seat is provided with a second lifting plane slidingly abutted against the first lifting plane, and the lifting plate is installed on the moving nut.

[0011] Further, the rotation driving mechanism includes a second motor installed on the top of the box body, a driving gear sleeved on the output shaft of the second motor, and a first gear, a transmission gear and a second gear respectively rotatably connected to the top of the box body. The first gear is sleeved on the top end of the first stretching roller, the second gear is sleeved on the top end of the second stretching roller. The two sides of the driving gear are respectively in transmission engagement with the first gear and the transmission gear, the transmission gear is in transmission engagement with the second gear. The diameter of the driving gear is equal to that of the transmission gear, and the diameter of the first gear is greater than that of the second gear.

[0012] Further, the box body is rotatably connected with a box door, and the box door is used to open or close the side opening of the box body.

[0013] Further, a door handle is embedded on the outer side surface of the box door.

[0014] Advantages of the present utility model: In practical applications, the film roll is installed on the roll material rack, and the film in the film roll enters the box body from the film inlet. The film sequentially passes around the film guiding roller, the first stretching roller, the film guiding roller, the second stretching roller, and the film guiding roller and then is output from the film outlet. The rotation driving mechanism drives the first stretching roller and the second stretching roller to rotate in opposite directions, and the rotation speed of the first stretching roller is less than that of the second stretching roller. As the film moves, under the action of the rotation speed difference between the first stretching roller and the second stretching roller, the film is stretched and then output. The winding machine drives the film stretching device of the winding machine to rotate around the product, so that the film is wound around the product. When the winding and packaging of the product are about to be completed, the film compressing mechanism compresses the film output from the film outlet in the width direction, so that the sheet-shaped film is compressed into a strip-shaped film. The strip-shaped film is wound around the product, and the strip-shaped film can be used as a rope to tie and knot the packaged product, so that the film can be wound around the product more firmly. The present utility model can compress and make ropes for the film after winding and packaging, improving the quality and stability of the film-packaged product. Description of the Drawings

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the present utility model.

[0016] Figure 2 It is a three-dimensional structure schematic diagram of another perspective of the present utility model.

[0017] Figure 3 It is a three-dimensional structure schematic diagram of the present utility model with the box door hidden.

[0018] Figure 4 It is a three-dimensional structure schematic diagram of the film compressing mechanism of the present utility model.

[0019] Description of the reference numerals:

[0020] 1, bottom plate; 2, box body; 3, rotation driving mechanism; 4, first stretching roller; 5, second stretching roller; 6, film guiding roller; 7, film inlet; 8, film outlet; 9, roll material rack; 10, film compressing mechanism; 11, lifting driving module; 12, lifting plate; 13, film pressing wheel; 14, film outlet roller; 15, mounting seat; 16, lead screw; 17, moving nut; 18, first motor; 19, second lifting plane; 20, box door; 21, door handle. Detailed implementation manners

[0021] For the convenience of understanding by those skilled in the art, the present utility model will be further described below in conjunction with the embodiments and the drawings. The content mentioned in the implementation manners does not limit the present utility model.

[0022] Such as Figures 1 to 4As shown in the figure, a film material stretching device of a winding machine capable of compressing film materials provided by the present utility model includes a bottom plate 1, a box body 2 installed on the bottom plate 1, a rotation driving mechanism 3 installed on the top of the box body 2, and a first stretching roller 4, a second stretching roller 5 and a plurality of film guiding rollers 6 respectively and rotatably connected in parallel in the box body 2. The first stretching roller 4 and the second stretching roller 5 are respectively located between two adjacent film guiding rollers 6. The rotation driving mechanism 3 is used to drive the first stretching roller 4 and the second stretching roller 5 to rotate in opposite directions. The rotation speed of the first stretching roller 4 is less than that of the second stretching roller 5. Feeding ports 7 and discharging ports 8 are respectively arranged on both sides of the box body 2. The second stretching roller 5 is located on the side of the first stretching roller 4 away from the feeding port 7. The bottom plate 1 is provided with a coil material rack 9 and a compressed film material mechanism 10. The coil material rack 9 is located on one side of the feeding port 7, and the compressed film material mechanism 10 is located on one side of the discharging port 8. The compressed film material mechanism 10 is used to compress the film material output at the discharging port 8 in the width direction.

[0023] In practical applications, the film material roll is installed on the coil material rack 9. The film material in the film material roll enters the box body 2 from the feeding port 7. The film material sequentially passes around the film guiding rollers 6, the first stretching roller 4, the film guiding rollers 6, the second stretching roller 5 and the film guiding rollers 6 and then is output from the discharging port 8. The rotation driving mechanism 3 drives the first stretching roller 4 and the second stretching roller 5 to rotate in opposite directions, and the rotation speed of the first stretching roller 4 is less than that of the second stretching roller 5. With the movement of the film material, under the action of the rotation speed difference between the first stretching roller 4 and the second stretching roller 5, the film material is stretched and then output. The winding machine drives the film material stretching device of the winding machine to rotate around the product, so that the film material is wound around the product. When the winding and packaging of the product are about to be completed, the compressed film material mechanism 10 compresses the film material output at the discharging port 8 in the width direction, so that the sheet-shaped film material is compressed into a strip-shaped film material. The strip-shaped film material is wound around the product, and the strip-shaped film material can be used as a rope to bind and tie the product after packaging, so that the film material can be wound around the product more firmly. The present utility model can realize the compression and rope making of the film material after winding and packaging, and improves the quality and stability of the film material packaging product.

[0024] In this embodiment, the compressed film material mechanism 10 includes a lifting driving module 11 installed on one side of the bottom plate 1 or the box body 2 close to the discharging port 8, a lifting plate 12 installed on the lifting end of the lifting driving module 11, and a film pressing wheel 13 rotatably connected to the lifting plate 12. The film pressing wheel 13 is arranged above and below the discharging port 8, and the axis of the film pressing wheel 13 is perpendicular to the axis of the film guiding roller 6.

[0025] In practical applications, at the beginning, the film pressing wheel 13 is located above the film material. The lifting driving module 11 drives the lifting plate 12 and the film pressing wheel 13 to move downward from top to bottom, so that the film pressing wheel 13 compresses the film material output at the discharging port 8 in the width direction.

[0026] In this embodiment, the bottom plate 1 is rotatably connected with a film outlet roller 14, and the film outlet roller 14 is located between the film outlet 8 and the film pressing wheel 13. After the film material is output from the film outlet 8, it winds around the film outlet roller 14, improving the stability of the film pressing wheel 13 for compressing the film material.

[0027] In this embodiment, the lifting drive module 11 includes a mounting seat 15 installed on the bottom plate 1 or the box body 2, a lead screw 16 rotatably connected to the mounting seat 15, a moving nut 17 threadedly connected to the lead screw 16, and a first motor 18 installed on the mounting seat 15 and used to drive the lead screw 16 to rotate. The moving nut 17 is provided with a first lifting plane, and the mounting seat 15 is provided with a second lifting plane 19 that slidably abuts against the first lifting plane. The lifting plate 12 is installed on the moving nut 17.

[0028] In practical applications, the first motor 18 drives the lead screw 16 to rotate forward and backward. The lead screw 16 rotating forward and backward drives the moving nut 17 to drive the lifting plate 12 and the film pressing wheel 13 to lift. The rising film pressing wheel 13 resets, and the descending film pressing wheel 13 compresses the film material in the width direction to compress the sheet-shaped film material into a strip-shaped film material. Due to the cooperation between the first lifting plane and the second lifting plane 19, the moving nut 17 can only move up and down and will not rotate synchronously with the lead screw 16.

[0029] In this embodiment, the rotation drive mechanism 3 includes a second motor installed on the top of the box body 2, a driving gear sleeved on the output shaft of the second motor, a first gear, a transmission gear, and a second gear that are respectively rotatably connected to the top of the box body 2. The first gear is sleeved on the top end of the first stretching roller 4, the second gear is sleeved on the top end of the second stretching roller 5, the two sides of the driving gear are respectively in transmission engagement with the first gear and the transmission gear, the transmission gear is in transmission engagement with the second gear, the diameter of the driving gear is equal to the diameter of the transmission gear, and the diameter of the first gear is greater than the diameter of the second gear.

[0030] In practical applications, the second motor drives the driving gear to rotate. The rotating driving gear is respectively engaged with the first gear and the transmission gear, and the rotating transmission gear is engaged with the second gear, so that the first gear and the second gear rotate in opposite directions, thereby making the first stretching roller 4 and the second stretching roller 5 rotate in opposite directions. Since the diameter of the first gear is greater than the diameter of the second gear, the rotation speed of the first stretching roller 4 is less than the rotation speed of the second stretching roller 5. Under the action of the rotation speed difference between the first stretching roller 4 and the second stretching roller 5, the film material is stretched.

[0031] In this embodiment, the box body 2 is rotatably connected with a box door 20, and the box door 20 is used to open or close the side opening of the box body 2. In practical applications, opening the box door 20 facilitates threading the film material, so that the film material winds around the film guiding roller 6, the first stretching roller 4, the film guiding roller 6, the second stretching roller 5, and the film guiding roller 6 in sequence.

[0032] In this embodiment, a door handle 21 is embedded on the outer side of the box door 20. The door handle 21 facilitates the user to open the box door 20.

[0033] All the technical features in this embodiment can be freely combined according to actual needs.

[0034] The above embodiment is a preferred implementation scheme of the present utility model. In addition, the present utility model can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present utility model.

Claims

1. A winding machine film stretching device capable of compressing film materials, characterized in that: It includes a bottom plate (1), a box body (2) installed on the bottom plate (1), a rotation driving mechanism (3) installed on the top of the box body (2), and a first stretching roller (4), a second stretching roller (5) and a plurality of film guiding rollers (6) respectively and rotatably connected in parallel in the box body (2). The first stretching roller (4) and the second stretching roller (5) are respectively located between two adjacent film guiding rollers (6). The rotation driving mechanism (3) is used to drive the first stretching roller (4) and the second stretching roller (5) to rotate in opposite directions. The rotation speed of the first stretching roller (4) is less than that of the second stretching roller (5). Film inlet openings (7) and film outlet openings (8) are respectively arranged on both sides of the box body (2). The second stretching roller (5) is located on the side of the first stretching roller (4) away from the film inlet opening (7). The bottom plate (1) is provided with a coil rack (9) and a compressed film material mechanism (10). The coil rack (9) is located on one side of the film inlet opening (7), and the compressed film material mechanism (10) is located on one side of the film outlet opening (8). The compressed film material mechanism (10) is used to compress the film material output at the film outlet opening (8) in the width direction.

2. The film stretching device of a winding machine capable of compressing film material according to claim 1, wherein: The compressed film material mechanism (10) includes a lifting driving module (11) installed on one side of the bottom plate (1) or the box body (2) close to the film outlet opening (8), a lifting plate (12) installed on the lifting end of the lifting driving module (11), and a film pressing wheel (13) rotatably connected to the lifting plate (12). The film pressing wheel (13) is arranged to lift outside the film outlet opening (8). The axis of the film pressing wheel (13) is perpendicular to the axis of the film guiding roller (6).

3. The film stretching device of a winding machine capable of compressing film material according to claim 2, characterized in that: The bottom plate (1) is rotatably connected with a film outlet roller (14). The film outlet roller (14) is located between the film outlet opening (8) and the film pressing wheel (13).

4. The film stretching device of a winding machine capable of compressing film material according to claim 2, characterized in that: The lifting driving module (11) includes a mounting seat (15) installed on the bottom plate (1) or the box body (2), a lead screw (16) rotatably connected to the mounting seat (15), a moving nut (17) threadedly connected to the lead screw (16), and a first motor (18) installed on the mounting seat (15) and used to drive the lead screw (16) to rotate. The moving nut (17) is provided with a first lifting plane, and the mounting seat (15) is provided with a second lifting plane (19) slidingly abutted against the first lifting plane. The lifting plate (12) is installed on the moving nut (17).

5. The film stretching device of a winding machine capable of compressing film material according to claim 1, characterized in that: The rotation driving mechanism (3) includes a second motor installed on the top of the box body (2), a driving gear sleeved on the output shaft of the second motor, a first gear, a transmission gear and a second gear respectively rotatably connected to the top of the box body (2). The first gear is sleeved on the top end of the first stretching roller (4), and the second gear is sleeved on the top end of the second stretching roller (5). Both sides of the driving gear are in transmission engagement with the first gear and the transmission gear respectively. The transmission gear is in transmission engagement with the second gear. The diameter of the driving gear is equal to that of the transmission gear, and the diameter of the first gear is larger than that of the second gear.

6. The film stretching device for a winding machine capable of compressing film according to claim 1, characterized in that: The box body (2) is rotatably connected with a box door (20). The box door (20) is used to open or close the side opening of the box body (2).

7. The film stretching device of a winding machine capable of compressing film material according to claim 6, characterized in that: A door handle (21) is embedded on the outer side surface of the box door (20).

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