Glue-free film rewinding and automatic rubberizing sealing equipment

Abstract

The invention discloses glue-free film rewinding automatic rubberizing sealing equipment, and relates to the technical field of rewinding machines, the glue-free film rewinding automatic rubberizing sealing equipment comprises an equipment rack, a rewinding shaft and an adsorption device which are alternately distributed and are in one-to-one correspondence are rotatably connected in the rack, and a cutting device, a pressing device and a rubberizing device are further mounted in the rack. The free end of the thin film is wound on the rewinding shaft, after rewinding is completed, the cutting device cuts the thin film, the adsorption device adsorbs and fixes a thin film stub bar, the material pressing device presses the stub bar, the rubberizing device attaches the rubber film to the stub bar and cuts the rubber film, and the protruding part of the rubber film is attached to the wound thin film to achieve sealing. The equipment integrates an automatic operation structure, can completely replace manual work, greatly improves the production efficiency, reduces the labor intensity, guarantees the accuracy and firmness of rubberizing and sealing, improves the quality stability of products, and is suitable for large-scale production.

Description

Technical Field

[0001] This invention relates to the field of rewinding machine technology, and in particular to an automatic adhesive-sealing device for rewinding without adhesive film. Background Technology

[0002] In the field of rewinding machine technology, the adhesive sealing after film-free rewinding is a core process to ensure the regularity of the roll shape and prevent loose unwinding. Currently, most small and medium-sized enterprises still use manual methods to complete this process. Specifically, after the film is wound to the set length, the excess film is manually cut off, then the adhesive film is held and aligned with the film head to be applied, and finally the seal is manually pressed and the adhesive film is cut off.

[0003] Manual adhesive sealing is not only labor-intensive and inefficient, making it difficult to adapt to large-scale production, but also presents numerous quality risks: insufficient positioning accuracy can lead to adhesive film misalignment and inconsistent protrusion lengths, resulting in weak seals; uneven manual pressure can cause the adhesive film and membrane to adhere poorly, making the roll material prone to loosening during storage and transportation; furthermore, the subjectivity and fatigue of manual operation can exacerbate product quality fluctuations, leading to a high defect rate. These problems severely restrict the improvement of production efficiency and product quality, thus urgently requiring a specialized device that can replace manual labor and automate the adhesive sealing process. Summary of the Invention

[0004] To address the technical problems existing in the background art, the present invention proposes an automatic adhesive sealing device for film-free rewinding.

[0005] This invention proposes an automatic adhesive-sealing device for film rewinding, comprising a frame, within which several rewinding shafts and several adsorption devices are rotatably connected. The rewinding shafts and adsorption devices are alternately distributed and correspond one-to-one. The frame also houses a cutting device, a pressing device, and an adhesive-applying device. The free end of the film is wound around the outside of the rewinding shafts. The cutting device is used to cut the film, the adsorption devices are used to adsorb the film end, the pressing device is used to press the film end, and the adhesive-applying device is used to apply adhesive film to the film end.

[0006] Furthermore, the cutting device includes a cutting straight line module installed inside the equipment frame. The cutting straight line module has a cutting lifting cylinder installed at its drive end. The extension end of the cutting lifting cylinder is vertically downward and has a base installed thereon. A cutting drive motor is installed inside the base. A cutter disc is installed at the drive end of the cutting drive motor. A "D"-shaped protective cover is installed on the back of the base. The upper half of the cutter disc is located inside the protective cover.

[0007] Furthermore, the adsorption device includes an adsorption body with a cavity inside. A cover plate is installed at the top of the adsorption body to seal the cavity opening. Several adsorption holes communicating with the cavity are evenly distributed inside the cover plate. A gas pipe connector communicating with the cavity is connected to the bottom of the adsorption body.

[0008] Furthermore, the pressing device includes a pressing lifting cylinder symmetrically rotatably connected to the inside of the equipment frame and a pressing lifting seat symmetrically slidably connected to the inside of the equipment frame. The telescopic end of the pressing lifting cylinder is vertically downward and connected to the pressing lifting seat. The bottom end of the pressing lifting seat is rotatably connected to a pressing rod.

[0009] Furthermore, the adhesive applicator includes an adhesive applicator linear module installed inside the equipment frame. The drive end of the adhesive applicator linear module is equipped with a transverse shift seat, the top of the transverse shift seat is equipped with an adhesive applicator lifting cylinder, the front of the transverse shift seat is slidably connected to an adhesive applicator lifting seat, the front of the adhesive applicator lifting seat is rotatably connected to an adhesive tape tray, and the bottom of the adhesive applicator lifting seat is rotatably connected to a swing arm.

[0010] Furthermore, the adhesive application lifting seat and the swing arm are rotatably connected together by a swing drive cylinder for driving the swing arm to swing back and forth. The bottom end of the swing arm is rotatably connected to a pressure roller. A cutting drive cylinder is installed at the bottom of the swing arm. The telescopic end of the cutting drive cylinder extends to below the pressure roller and is equipped with a cutter.

[0011] Furthermore, the cover plate is made of wear-resistant polymer material, the upper surface of the cover plate is a smooth plane, and the pore diameter of the adsorption holes is 0.5-2mm.

[0012] Furthermore, the adhesive film applied by the adhesive applicator protrudes 5-15mm from the film slab head, and the adhesive film is used to adhere to the surface of the wound film to achieve sealing.

[0013] Furthermore, a shock-absorbing rubber pad is provided between the cutting drive motor and the base, the cutter disc is fixed to the output shaft of the cutting drive motor by a key connection, the diameter of the cutter disc is 80-120mm, and the opening of the protective cover faces the cutting direction of the cutter disc.

[0014] Furthermore, the pressure rod is made of hollow stainless steel tube, and both ends of the pressure rod are rotatably connected to the pressure lifting seat through bearings. The surface of the pressure rod is covered with a 2-5mm thick anti-slip rubber sleeve, and the surface of the rubber sleeve is provided with anti-slip texture.

[0015] The beneficial effects of this invention are as follows: By integrating cutting, adsorption, pressing, and adhesive application into a single automated structure, it can completely replace manual labor in the adhesive application and sealing operation after rewinding the film without adhesive. This not only significantly reduces the intensity of manual labor and improves production efficiency, but also ensures that the film is flat, the seal is firm, and the protrusion length is consistent through precise adsorption positioning, stable pressing and fixing, and standardized film application and cutting. This effectively avoids quality problems such as application deviation and uneven compaction caused by manual operation, significantly improves product quality stability, and meets the needs of large-scale production. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the cutting device in this invention;

[0018] Figure 3 This is a schematic diagram of the adsorption device in this invention;

[0019] Figure 4 This is a schematic diagram of the pressing device in this invention;

[0020] Figure 5 This is a first-view structural schematic diagram of the adhesive applicator in this invention;

[0021] Figure 6 This is a schematic diagram of the adhesive applicator from a second perspective in this invention;

[0022] Figure 7 This is a half-sectional view of the present invention;

[0023] Figure 8 This is a schematic diagram illustrating the principle of adhesive sealing in this invention.

[0024] In the diagram: 1. Equipment frame; 2. Film; 3. Rewinding shaft; 4. Cutting device; 41. Cutting linear module; 42. Cutting lifting cylinder; 43. Base; 44. Cutting drive motor; 45. Cutting disc; 46. Protective cover; 5. Adsorption device; 51. Adsorption body; 52. Cavity; 53. Cover plate; 54. Adsorption hole; 55. Air pipe connector; 6. Pressing device; 61. Pressing lifting cylinder; 62. Pressing lifting seat; 63. Pressing rod; 7. Adhesive applicator; 71. Adhesive applicator linear module; 72. Transverse seat; 73. Adhesive applicator lifting cylinder; 74. Adhesive applicator lifting seat; 75. Adhesive tape tray; 751. Adhesive film; 76. Swing arm; 77. Swing drive cylinder; 78. Pressure roller; 79. Cutting drive cylinder; 710. Cutter. Detailed Implementation

[0025] Reference Figure 1-8This invention proposes an automatic adhesive-sealing device for rewinding and sealing adhesive-free film, comprising a frame 1 and a film 2. Several rewinding shafts 3 and several adsorption devices 5 are rotatably connected inside the frame 1. The adsorption devices 5 and rewinding shafts 3 are complementary facilities, i.e., one rewinding shaft 3 corresponds to one adsorption device 5, and the rewinding shafts 3 and adsorption devices 5 are distributed alternately. More specifically, the several rewinding shafts 3 and the several adsorption devices 5 are evenly installed on the rewinding machine tray drive mechanism. For the specific structure of the rewinding machine tray drive mechanism, please refer to the rewinding machine tray drive mechanism disclosed in CN223606713U, which will not be detailed here. The free end of the film 2 is wound... The film 2 is wound around the outside of the corresponding rewinding shaft 3. Inside the equipment frame 1, a cutting device 4, a pressing device 6, and an adhesive applicator 7 are installed respectively. After a fixed length of film 2 is wound around the outside of the rewinding shaft 3, the cutting device 4 will actively cut off the excess part. After cutting, the end of film 2 will fall onto the adsorption device 5 corresponding to the rewinding shaft 3. The adsorption device 5 will generate negative pressure to adsorb the end of film 2 onto the upper surface of the adsorption device 5. After adsorption, the pressing device 6 will press down the end of film 2. Then the adhesive applicator 7 will attach the adhesive film to the upper surface of the end of film 2. The adhesive film protrudes from the end of film 2 so that the adhesive film adheres to the surface of the wound film 2 for sealing.

[0026] The cutting device 4 includes a cutting straight line module 41 installed inside the equipment frame 1. A cutting lifting cylinder 42 is installed at the drive end of the cutting straight line module 41. The telescopic end of the cutting lifting cylinder 42 is vertically downward and is equipped with a base 43. A cutting drive motor 44 is installed inside the base 43. A cutter disc 45 is installed at the drive end of the cutting drive motor 44. A protective cover 46 is installed on the back of the base 43. The protective cover 46 is configured as a "D" shaped structure. The upper half of the cutter disc 45 is located inside the protective cover 46.

[0027] When the cutting device 4 is working, the cutting drive motor 44 drives the cutter head 45 to rotate at high speed, and the cutting lifting cylinder 42 pushes the base 43, the cutting drive motor 44, the cutter head 45, and the protective cover 46 to move downward as a whole until the bottom edge of the cutter head 45 contacts the film 2 to be cut. Then the cutting straight module 41 drives the cutting lifting cylinder 42, the base 43, the cutting drive motor 44, the cutter head 45, and the protective cover 46 to move laterally as a whole. During the movement, the cutter head 45 moves while cutting the film 2 until the film 2 is completely cut off.

[0028] The adsorption device 5 includes an adsorption body 51 installed inside the equipment frame 1. The adsorption body 51 has a cavity 52 inside, and a cover plate 53 is installed on the top of the adsorption body 51. The cover plate 53 seals the opening of the cavity 52, and a plurality of adsorption holes 54 connected to the cavity 52 are evenly opened inside the cover plate 53. The bottom end of the adsorption body 51 is connected to a gas pipe connector 55, which is connected to the cavity 52.

[0029] When the adsorption device 5 is working, it is connected to an external air extraction device through the air pipe connector 55. When the external air extraction device is working, it will create a negative pressure inside the cavity 52. ​​When the material head of the film 2 is attached to the surface of the cover plate 53, the generated negative pressure will adsorb the material head of the film 2 onto the surface of the cover plate 53 through several adsorption holes 54.

[0030] The pressing device 6 includes a pressing lifting cylinder 61 symmetrically rotatably connected to the inner side of the equipment frame 1, and a pressing lifting seat 62 symmetrically slidably connected to the inner side of the equipment frame 1. The telescopic end of the pressing lifting cylinder 61 is vertically downward and connected to the pressing lifting seat 62. The bottom end of the pressing lifting seat 62 is rotatably connected to the pressing rod 63.

[0031] When the pressing device 6 is working, the pressing lifting cylinder 61 extends and pushes the pressing lifting seat 62 and the pressing rod 63 downward as a whole until the bottom edge of the pressing rod 63 presses on the material head of the film 2; after the adhesive is applied, it rises again to release the downward pressure.

[0032] The adhesive applicator 7 includes an adhesive applicator linear module 71 installed inside the equipment frame 1. A transverse shift seat 72 is installed at the drive end of the adhesive applicator linear module 71. An adhesive applicator lifting cylinder 73 is installed at the top of the transverse shift seat 72. An adhesive applicator lifting seat 74 is slidably connected to the front of the transverse shift seat 72. An adhesive tape tray 75 is rotatably connected to the front of the adhesive applicator lifting seat 74. The adhesive tape tray 75 releases adhesive film 751. A swing arm 76 is rotatably connected to the bottom of the adhesive applicator lifting seat 74. A swing drive cylinder 77 is rotatably connected between the adhesive applicator lifting seat 74 and the swing arm 76 to drive the swing arm 76 to swing back and forth. A pressure roller 78 is rotatably connected to the bottom of the swing arm 76. A cutting drive cylinder 79 is installed at the bottom of the swing arm 76. The telescopic end of the cutting drive cylinder 79 extends to the bottom of the pressure roller 78 and is equipped with a cutter 710.

[0033] When the adhesive applicator 7 is working, the tip of the adhesive film 751 is first passed through the guide roller shaft, and finally positioned below the pressure roller 78. The adhesive applicator lifting cylinder 73 pushes the adhesive applicator lifting seat 74, adhesive tape tray 75, swing arm 76, swing drive cylinder 77, pressure roller 78, cutting drive cylinder 79, and cutter 710 downwards as a whole. After moving into position, the swing drive cylinder 77 extends, pushing the swing arm 76, pressure roller 78, cutting drive cylinder 79, and cutter 710 downwards until the pressure roller 78 presses the tip of the adhesive film 751 against the surface of the film 2 tip. During bonding, as shown in the image... Figure 8As shown, it should be noted that the adhesive film 751 protrudes from the head of the film 2, so that the adhesive film 751 can be bonded to the surface of the already wound film 2. Then the adhesive application linear module 71 is driven to move, so that the adhesive film 751 is bonded to the head of the film 2. After bonding, the cutting drive cylinder 79 retracts, pulling the cutter 710 upward until the adhesive film 751 is cut off, and finally resets.

[0034] The working process of this equipment is as follows: After a fixed length of film 2 is wound around the rewinding shaft 3, the cutting device 4 starts operation. The cutting drive motor 44 drives the cutter head 45 to rotate at high speed. The cutting lifting cylinder 42 pushes the base 43 and supporting components downward, so that the bottom edge of the cutter head 45 contacts the film 2. Then, the cutting straight module 41 drives the entire cutting device 4 to move laterally, completing the cutting of the film 2. The cut film 2 material ends fall onto the cover plate 53 of the corresponding adsorption device 5. The external air extraction device creates a negative pressure in the cavity 52 through the air pipe joint 55, adsorbing and fixing the film 2 material ends through the adsorption hole 54. Then, the pressing lifting cylinder 61 of the pressing device 6 extends, pushing the pressing lifting seat 62 and the pressing rod 63 downward, and the pressing rod 63 presses the film 2 material ends tightly. Subsequently, the adhesive applicator 7 is activated. The adhesive applicator lifting cylinder 73 pushes the adhesive applicator lifting seat 74 and its supporting components downward. The adhesive film 751 head passes through the guide roller shaft to below the pressure roller 78. The swing drive cylinder 77 extends and pushes the swing arm 76 to swing downward, so that the pressure roller 78, carrying the adhesive film 751, adheres to the surface of the film 2 head. The adhesive film 751 protrudes 5-15mm from the film 2 head to facilitate subsequent adhesion to the surface of the wound film 2. Then, the adhesive applicator linear module 71 drives the entire adhesive applicator 7 to move, completing the complete adhesion of the adhesive film 751 to the film 2 head. After adhesion, the cutting drive cylinder 79 retracts, pulling the cutter 710 upward to cut the adhesive film 751. All components reset, completing one automatic adhesive applicator sealing operation without adhesive film rewinding.

[0035] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic adhesive-sealing device for rewinding adhesive film without glue, comprising a machine frame (1), characterized in that, The equipment frame (1) is rotatably connected to several rewinding shafts (3) and several adsorption devices (5). The rewinding shafts (3) and adsorption devices (5) are alternately distributed and correspond one-to-one. The equipment frame (1) is also equipped with a cutting device (4), a pressing device (6) and an adhesive applicator (7). The free end of the film (2) is wound around the outside of the rewinding shaft (3). The cutting device (4) is used to cut the film (2). The adsorption device (5) is used to adsorb the film (2) head. The pressing device (6) is used to press the film (2) head. The adhesive applicator (7) is used to apply adhesive film (751) to the film (2) head.

2. The automatic adhesive-sealing and rewinding equipment for adhesive-free film according to claim 1, characterized in that, The cutting device (4) includes a cutting straight line module (41) installed inside the equipment frame (1). The cutting straight line module (41) is equipped with a cutting lifting cylinder (42) at its drive end. The extension end of the cutting lifting cylinder (42) is vertically downward and is equipped with a base (43). A cutting drive motor (44) is installed inside the base (43). A cutter disc (45) is installed at the drive end of the cutting drive motor (44). A "D"-shaped protective cover (46) is installed on the back of the base (43). The upper half of the cutter disc (45) is located inside the protective cover (46).

3. The automatic adhesive-sealing and rewinding equipment for adhesive-free film according to claim 1, characterized in that, The adsorption device (5) includes an adsorption body (51), an adsorption body (51) with a cavity (52) inside, a cover plate (53) that seals the opening of the cavity (52) installed at the top of the adsorption body (51), a plurality of adsorption holes (54) that communicate with the cavity (52) are evenly opened in the cover plate (53), and a gas pipe connector (55) that communicates with the cavity (52) is connected to the bottom of the adsorption body (51).

4. The automatic adhesive-sealing and rewinding equipment for adhesive-free film according to claim 1, characterized in that, The pressing device (6) includes a pressing lifting cylinder (61) symmetrically rotatably connected to the inside of the equipment frame (1) and a pressing lifting seat (62) symmetrically slidably connected to the inside of the equipment frame (1). The extension end of the pressing lifting cylinder (61) is vertically downward and connected to the pressing lifting seat (62). The bottom end of the pressing lifting seat (62) is rotatably connected to a pressing rod (63).

5. The automatic adhesive-sealing and rewinding equipment for adhesive-free film according to claim 1, characterized in that, The adhesive applicator (7) includes an adhesive applicator linear module (71) installed inside the equipment frame (1). The drive end of the adhesive applicator linear module (71) is equipped with a transverse shift seat (72). The top of the transverse shift seat (72) is equipped with an adhesive applicator lifting cylinder (73). The front of the transverse shift seat (72) is slidably connected to an adhesive applicator lifting seat (74). The front of the adhesive applicator lifting seat (74) is rotatably connected to a tape tray (75). The bottom of the adhesive applicator lifting seat (74) is rotatably connected to a swing arm (76).

6. The automatic adhesive-sealing and rewinding equipment for adhesive-free film according to claim 5, characterized in that, The adhesive application lifting seat (74) and the swing arm (76) are rotatably connected together by a swing drive cylinder (77) for driving the swing arm (76) to swing back and forth. The bottom end of the swing arm (76) is rotatably connected to a pressure roller (78). A cutting drive cylinder (79) is installed at the bottom of the swing arm (76). The telescopic end of the cutting drive cylinder (79) extends to below the pressure roller (78) and is equipped with a cutter (710).

7. The automatic adhesive-sealing and rewinding equipment for adhesive-free film according to claim 3, characterized in that, The cover plate (53) is made of wear-resistant polymer material. The upper surface of the cover plate (53) is a smooth plane, and the pore diameter of the adsorption hole (54) is 0.5-2mm.

8. The automatic adhesive-sealing and rewinding equipment for adhesive-free film according to claim 1, characterized in that, The adhesive film (751) attached by the adhesive applicator (7) protrudes 5-15mm from the head of the film (2) and is used to seal the film (751) by bonding it to the surface of the wound film (2).

9. The automatic adhesive-sealing and rewinding equipment for adhesive-free film according to claim 2, characterized in that, A shock-absorbing rubber pad is provided between the cutting drive motor (44) and the base (43). The cutter disc (45) is fixed to the output shaft of the cutting drive motor (44) by a key connection. The diameter of the cutter disc (45) is 80-120mm. The opening of the protective cover (46) faces the cutting direction of the cutter disc (45).

10. The automatic adhesive-sealing and rewinding equipment for adhesive-free film according to claim 1, characterized in that, The pressure rod (63) is made of hollow stainless steel tube. Both ends of the pressure rod (63) are rotatably connected to the pressure lifting seat (62) through bearings. The surface of the pressure rod (63) is covered with a non-slip rubber sleeve with a thickness of 2-5mm. The surface of the rubber sleeve is provided with non-slip texture.

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