A film cutting mechanism for composite bag production

Abstract

The utility model relates to the field of film material cutting for composite bag production discloses a film material cutting mechanism for composite bag production, including cutting machine, the cutting machine outside is provided with rotary lifting mechanism and clamping mechanism, the rotary lifting mechanism includes fixed base, the fixed base inner wall rotation is connected with rotating outer shell, the rotating outer shell inner wall rotation is connected with two -way screw rod, the two -way screw rod outer wall is connected with the moving block through the thread bush thread, the moving block inner wall is hinged with the clamping support through the hinged link. In the utility model, the rotary lifting mechanism cuts and drives the clamping support to adjust the film material height through motor no.

Description

Technical Field

[0001] This utility model relates to the field of film material cutting for composite bag production, and in particular to a film material cutting mechanism for composite bag production. Background Technology

[0002] Composite bags are packaging containers made by laminating two or more films of different materials through processes such as lamination, co-extrusion, and coating. Their core characteristic is that they compensate for the deficiencies of a single material through material composites. Common applications include food packaging, daily chemical packaging, and pharmaceutical packaging. In the composite bag manufacturing process, a film cutting mechanism is used to cut the raw film into upper and lower layers, which are then conveyed backwards. After being combined, the two layers are heat-sealed by a heat-sealing machine.

[0003] Before using the film material cutting mechanism, check that all parts of the equipment are intact and free from looseness or damage. Then, adjust the position and spacing of the cutters according to the required width and thickness of the film material to ensure compliance with production specifications. Next, feed the film material flat to the feed inlet of the mechanism, ensuring that the film material is free from wrinkles or deviation. After starting the equipment, observe the film material cutting process and pay attention to whether the cut edges are neat and free from burrs or breaks. If any abnormalities are found, stop the machine immediately, adjust the parameters, and restart the machine after the problem is resolved. After the cutting is completed, turn off the equipment, clean the cut film material, and perform routine cleaning and maintenance of the mechanism to ensure normal use next time.

[0004] In actual production scenarios, when precise cutting of film material is required, the height adjustment mechanism and the horizontal rotation mechanism of the equipment cannot work together effectively, resulting in poor linkage between height adjustment and horizontal rotation. For example, when adjusting the cutting height of the film material, the horizontal rotation angle cannot be adjusted synchronously, leading to deviations in the cutting position. During material changeover, due to the lack of coordination between the two, operators need to frequently and manually adjust the height and rotation angle separately. This involves numerous steps, which is not only time-consuming and labor-intensive but also prone to operational errors that affect the cutting accuracy and material changeover efficiency, significantly reducing the overall production progress. Therefore, a film material cutting mechanism for composite bag production is proposed to solve the above problems. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a film material cutting mechanism for composite bag production.

[0006] This utility model is achieved through the following technical solution: A film material cutting mechanism for composite bag production includes a cutting machine. The cutting machine is externally equipped with a rotary lifting mechanism and a clamping mechanism. The rotary lifting mechanism includes a fixed base. A rotating outer shell is rotatably connected to the inner wall of the fixed base. A bidirectional threaded rod is rotatably connected to the inner wall of the rotating outer shell. A movable block is threadedly connected to the outer wall of the bidirectional threaded rod via a threaded sleeve. A clamping bracket is hinged to the inner wall of the movable block via a hinge rod. A worm gear is fixedly connected to the outer wall of the bidirectional threaded rod. A worm is meshed with the outer wall of the worm gear. A second helical gear is fixedly connected to the end of the worm gear away from the worm gear. A first helical gear is meshed with the outer wall of the second helical gear. A cross-shaped rotating sleeve is fixedly connected to the inner wall of the first helical gear. A first gear is fixedly connected to the outer wall of the cross-shaped rotating sleeve. A cross-shaped rotating rod is rotatably and slidably connected to the inner wall of the cross-shaped rotating sleeve.

[0007] As a further description of the above technical solution: the rotary lifting mechanism also includes a motor, the bottom of which is fixedly connected to the inner wall of the fixed base, and the output shaft of the motor is fixedly connected to the bottom end of the cross rod.

[0008] As a further description of the above technical solution: the rotary lifting mechanism also includes a fixed housing, the bottom end of which is fixedly connected to the top end of the rotary housing, an electric push rod is fixedly connected to the inner wall of the fixed housing, a fixed column is fixedly connected to the inner rod of the electric push rod, a rotary cylinder is rotatably connected to the outer wall of the fixed column, and the bottom end of the rotary cylinder is fixedly connected to the top end of the cross-shaped rotating sleeve.

[0009] As a further description of the above technical solution: one end of the hinge rod is hinged to the inner wall of the moving block, the other end of the hinge rod is hinged to the inner wall of the clamping bracket, a limit block is fixedly connected to the inner wall of the rotating outer shell, and the limit block is slidably connected to the outer wall of the clamping bracket.

[0010] As a further description of the above technical solution: the clamping mechanism includes a material cylinder, a rotating rod is slidably connected to the inner wall of the material cylinder, and a gear is fixedly connected to the outer wall of the rotating rod.

[0011] As a further description of the above technical solution: the clamping mechanism also includes a hydraulic rod, which is fixedly connected to the outer wall of the slitting machine, and the inner rod of the hydraulic rod is fixedly connected to a circular outer shell.

[0012] As a further description of the above technical solution: the clamping mechanism includes a fixed shell, the bottom end of which is slidably connected to the top of the slitting machine, a second motor is fixedly connected to the inner wall of the fixed shell, and a clamping cylinder is fixedly connected to the output shaft of the second motor. The outer wall of the clamping cylinder rotates and slides on the inner wall of the slitting machine.

[0013] As a further description of the above technical solution: the inner wall of the annular outer shell is rotatably connected to the outer wall of the clamping cylinder.

[0014] This utility model has the following beneficial effects: In this invention, the rotating lifting mechanism drives the cross rod and other components to adjust the height of the film material during cutting. The electric push rod pushes the structure to adjust the horizontal angle of the rotating shell. The two work together to prevent cutting deviation. When changing materials, there is no need to manually adjust them separately. The structure is linked and synchronously adapts to the position, reducing steps, saving manpower, reducing errors, improving efficiency, and ensuring production progress.

[0015] Meanwhile, the clamping mechanism provides a stable place for the film roll by rotating the cylinder sleeve rod. In conjunction with the clamping bracket, it drives the rotating rod to rise and fall, adapting to different cutting heights and improving the applicability of the equipment. The rotating rod gear two cooperates with the clamping cylinder gear sleeve, and the film is stably conveyed by the motor two, avoiding jamming. The hydraulic rod pushes the ring shell to make the clamping cylinder clamp the film, preventing conveying deviation and ensuring conveying accuracy. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of a film material cutting mechanism for composite bag production proposed in this utility model; Figure 2 This is a schematic diagram of the clamping cylinder structure of a film material cutting mechanism for composite bag production proposed in this utility model; Figure 3 This is a schematic cross-sectional view of the fixed base and rotating outer shell of a film material cutting mechanism for composite bag production proposed in this utility model. Figure 4 This is a schematic diagram of a bidirectional threaded rod structure for a film material cutting mechanism in composite bag production proposed in this utility model; Figure 5 This is a schematic diagram of the fixed outer shell structure of a film material cutting mechanism for composite bag production proposed in this utility model; Figure 6 This is a schematic diagram of the clamping cylinder structure of a film material cutting mechanism for composite bag production proposed in this utility model; Figure 7 This is a schematic diagram of the cross-shaped rotating cylinder structure of a film material cutting mechanism for composite bag production proposed in this utility model.

[0017] Legend: 1. Cutting machine; 2. Rotary lifting mechanism; 211. Fixed base; 212. Rotating outer shell; 213. Cross rotating rod; 214. Worm gear; 215. Worm wheel; 216. Bidirectional threaded rod; 217. Moving block; 218. Hinge rod; 219. Clamping bracket; 220. Motor 1; 221. Cross rotating sleeve; 222. Gear 1; 223. Helical gear 1; 224. Helical gear 2; 225. Fixed column; 226. Fixed outer shell; 227. Electric push rod; 228. Rotating cylinder; 229. Limiting block; 3. Clamping mechanism; 311. Hydraulic rod; 312. Clamping cylinder; 313. Material cylinder; 314. Rotating rod; 315. Fixed shell; 316. Motor 2; 317. Gear 2; 318. Circular outer shell. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and preferred embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0020] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] Reference Figures 1-3The present invention provides an embodiment of a film material cutting mechanism for composite bag production, comprising a cutting machine 1, a rotating lifting mechanism 2 and a clamping mechanism 3 externally disposed on the cutting machine 1, the rotating lifting mechanism 2 comprising a fixed base 211, the fixed base 211 providing rotational support for the rotating outer shell 212, stably supporting the entire component of the rotating lifting mechanism 2, ensuring structural stability during film material rotation and lifting adjustment, the rotating outer shell 212 being rotatably connected to the inner wall of the fixed base 211, the rotating outer shell 212 being rotatably connected around the fixed base 211, providing installation space for the bidirectional threaded rod 216 and the clamping bracket 219, driving the film material to rotate horizontally to achieve material replacement, the inner wall limiting block 229 guiding the clamping bracket 219 to lift stably, the inner wall of the rotating outer shell 212 being rotatably connected to the... A bidirectional threaded rod 216 rotates, driving a sliding block 217 via its threads. This converts rotational power into linear motion of the moving block 217, providing driving force for the lifting and lowering of the clamping bracket 219. The outer wall of the bidirectional threaded rod 216 is threadedly connected to the moving block 217 via a threaded sleeve. The moving block 217 slides along the bidirectional threaded rod 216 and pushes and pulls the clamping bracket 219 via a hinged rod 218, transmitting power to adjust the height of the clamping bracket 219. The inner wall of the moving block 217 is hinged to the clamping bracket 219 via the hinged rod 218. The clamping bracket 219 carries the rotating rod 314 and the film material, adjusting its height to change the position of the film material and providing support for the rotating rod 314. A worm gear is fixedly connected to the outer wall of the bidirectional threaded rod 216. 215. The worm gear 215 meshes with the worm 214, transmitting the rotational power of the worm 214 to the bidirectional threaded rod 216, ensuring smooth rotation of the bidirectional threaded rod 216. The outer wall of the worm gear 215 is meshed with the worm 214, which is driven to rotate by a helical gear. The worm 214 meshes with the worm gear 215 to achieve power direction conversion and deceleration, driving the bidirectional threaded rod 216 to rotate stably. A helical gear 224 is fixedly connected to the end of the worm 214 away from the worm gear 215. The helical gear 224 meshes with the helical gear 223, driving the worm 214 to rotate, connecting the power transmission between the cross sleeve 221 and the worm 214. The outer wall of the helical gear 224 is meshed with the helical gear 223, which rotates with the cross sleeve 221 and meshes with the helical gear 224. The 224 meshing mechanism enables power direction conversion, transmitting power from the cross sleeve 221 to the worm gear 214. The cross sleeve 221 is fixedly connected to the inner wall of the helical gear 223. The cross sleeve 221 slides along the cross rod 213 and rotates synchronously, driving the helical gear 223 and gear 222 for transmission. This allows for both power transmission and movement, enabling gear meshing switching. Gear 222 is fixedly connected to the outer wall of the cross sleeve 221. When gear 222 meshes with the gear sleeve on the inner wall of the rotating housing 212, it drives the rotating housing 212 to rotate around the fixed base 211, achieving horizontal rotation and material changing of the film. The inner wall of the cross sleeve 221 rotates and is slidably connected to the cross rod 213, which is driven to rotate by the motor 220.This drives the cross-shaped rotating sleeve 221 to rotate synchronously, transmitting the motor's power to subsequent transmission components, providing the power basis for film material adjustment.

[0022] Reference Figures 5-7 The rotary lifting mechanism 2 also includes a motor 220, which provides the core power for the rotary lifting mechanism 2. The output shaft drives the cross rod 213 to rotate, driving subsequent components to complete the film material height adjustment and rotation material change. The bottom of the motor 220 is fixedly connected to the inner wall of the fixed base 211, and the output shaft of the motor 220 is fixedly connected to the bottom end of the cross rod 213. The rotary lifting mechanism 2 also includes a fixed housing 226, which is fixed to the top of the rotating housing 212, providing a mounting base for the electric push rod 227. The installation and protection space ensures that the electric actuator 227 stably pushes the component to move. The bottom end of the fixed housing 226 is fixedly connected to the top end of the rotating housing 212. The electric actuator 227 is fixedly connected to the inner wall of the fixed housing 226. The inner rod of the electric actuator 227 pushes the fixed column 225, which drives the rotating cylinder 228 and the cross sleeve 221 to move, realizing the engagement or disengagement of the gear 222 with the gear sleeve on the inner wall of the rotating housing 212, controlling the rotation and material changing action. The inner rod of the electric actuator 227 is fixedly connected to the fixed column 225, and the fixed column 225 is connected to... The electric actuator 227 and the rotating cylinder 228 transmit the thrust of the electric actuator 227, driving the rotating cylinder 228 and the cross-shaped rotating sleeve 221 to move. The rotating cylinder 228 is rotatably connected to the outer wall of the fixed column 225. The rotating cylinder 228 moves with the fixed column 225, driving the cross-shaped rotating sleeve 221 to slide along the cross-shaped rotating rod 213, ensuring that the cross-shaped rotating sleeve 221 can still rotate synchronously when it moves. The bottom end of the rotating cylinder 228 is fixedly connected to the top end of the cross-shaped rotating sleeve 221. One end of the hinge rod 218 is hinged to the inner wall of the moving block 217. The movable block 217 is connected to the clamping bracket 219, and the sliding of the movable block 217 is converted into the lifting and lowering movement of the clamping bracket 219 to ensure smooth adjustment. The other end of the hinge rod 218 is hinged to the inner wall of the clamping bracket 219. The inner wall of the rotating shell 212 is fixedly connected to the limit block 229. The limit block 229 is fixed to the inner wall of the rotating shell 212 to limit the movement direction of the clamping bracket 219 and prevent it from deviating when lifting and lowering, so as to ensure accurate adjustment of the film height. The limit block 229 is slidably connected to the outer wall of the clamping bracket 219.

[0023] Reference Figures 4-6The clamping mechanism 3 includes a material cylinder 313, which is sleeved on the outer wall of the rotating rod 314 and is used to hold the film roll, providing a storage and release carrier for the film. The rotating rod 314 is slidably connected to the inner wall of the material cylinder 313. The rotating rod 314 carries the material cylinder 313 and the film and is driven to rotate by gear 317 to assist in the release of the film. The height of the film is adjusted by the lifting and lowering of the clamping bracket 219. Gear 317 is fixedly connected to the outer wall of the rotating rod 314 and is fixed to the rotating rod. When the outer wall of 314 engages with the toothed sleeve on the inner wall of the clamping cylinder 312, it drives the rotating rod 314 to rotate, assisting in the stable release of the film material. The clamping mechanism 3 also includes a hydraulic rod 311, which is fixed to the outer wall of the slitting machine 1. The inner rod pushes the annular outer shell 318, causing the clamping cylinder 312 to clamp the film material and prevent it from shifting during film conveying. The hydraulic rod 311 is fixedly connected to the outer wall of the slitting machine 1, and the inner rod of the hydraulic rod 311 is fixedly connected to the annular outer shell 318. The annular outer shell 318 is subjected to hydraulic pressure. The lever 311 pushes and drives the clamping cylinder 312 to move, thereby clamping the film material and ensuring the stability of the film material conveying position. The clamping mechanism 3 includes a fixed shell 315, which provides installation space for the second motor 316 and stably supports the second motor 316, ensuring that its output shaft drives the clamping cylinder 312 to rotate stably. The bottom end of the fixed shell 315 is slidably connected to the top of the slitting machine 1. The second motor 316 is fixedly connected to the inner wall of the fixed shell 315. The output shaft of the second motor 316 drives the clamping cylinder 312 to rotate, assisting in the stable conveying of the film material and controlling the conveying speed of the film material to ensure the precise cutting of the slitting machine 1. The output shaft of the second motor 316 is fixedly connected to the clamping cylinder 312. The clamping cylinder 312 is driven to rotate by the second motor 316 and, together with the hydraulic rod 311, clamps the film material, which not only fixes the position of the film material but also assists in the conveying, providing a guarantee for precise cutting. The outer wall of the clamping cylinder 312 rotates and slides on the inner wall of the slitting machine 1. The inner wall of the annular outer shell 318 is rotatably connected to the outer wall of the clamping cylinder 312.

[0024] Working principle: Motor 220 drives the cross rotor 213 to rotate, which in turn drives the cross sleeve 221, which is slidably connected to the inner wall, to rotate synchronously. The cross sleeve 221 meshes with helical gear 224 through helical gear 223, driving the worm 214 to rotate. The worm 214 meshes with the worm wheel 215, causing the bidirectional threaded rod 216 to rotate inside the rotating housing 212. The moving block 217 slides along the bidirectional threaded rod 216, and pushes and pulls the clamping bracket 219 through the hinge rod 218. Combined with the guidance of the limit block 229, the height of the clamping bracket 219 is adjusted, thereby adjusting the height of the film material. The electric push rod 227 inside the fixed housing 226 pushes the fixed column 225, causing the rotating cylinder 228 to move the cross sleeve 221. Gear 222 on the outer wall of the cross sleeve 221 meshes with the gear sleeve on the inner wall of the rotating housing 212, driving the rotating housing 212 to rotate around the fixed base 211, realizing the rotation of the film material to a horizontal position for material replacement.

[0025] The material cylinder 313 is fitted onto the rotating rod 314 to hold the film roll. The rotating rod 314 is raised and lowered to a certain height by the clamping bracket 219. The gear 317 on the outer wall of the rotating rod 314 engages with the gear sleeve on the inner wall of the clamping cylinder 312, driving the rotating rod 314 to rotate. The hydraulic rod 311 pushes the annular outer shell 318, causing the clamping cylinder 312 to clamp the film. The motor 316 on the inner wall of the fixed shell 315 drives the clamping cylinder 312 to rotate, assisting in the stable conveying of the film and ensuring the precise cutting of the slitting machine 1.

[0026] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A film material cutting mechanism for composite bag production, comprising a cutting machine (1), characterized in that: The cutting machine (1) is externally equipped with a rotary lifting mechanism (2) and a clamping mechanism (3). The rotary lifting mechanism (2) includes a fixed base (211), a rotating outer shell (212) rotatably connected to the inner wall of the fixed base (211), a bidirectional threaded rod (216) rotatably connected to the inner wall of the rotating outer shell (212), a moving block (217) threadedly connected to the outer wall of the bidirectional threaded rod (216) via a threaded sleeve, a clamping bracket (219) hinged to the inner wall of the moving block (217) via a hinge rod (218), and a worm gear (215) fixedly connected to the outer wall of the bidirectional threaded rod (216). The outer wall of the worm wheel (215) is meshed with a worm (214), and the end of the worm (214) away from the worm wheel (215) is fixedly connected with a helical gear two (224). The outer wall of the helical gear two (224) is meshed with a helical gear one (223), the inner wall of the helical gear one (223) is fixedly connected with a cross rotating sleeve (221), the outer wall of the cross rotating sleeve (221) is fixedly connected with a gear one (222), and the inner wall of the cross rotating sleeve (221) is rotatably and slidably connected with a cross rotating rod (213).

2. The film material cutting mechanism for composite bag production according to claim 1, characterized in that: The rotary lifting mechanism (2) also includes a motor (220), the bottom of which is fixedly connected to the inner wall of the fixed base (211), and the output shaft of the motor (220) is fixedly connected to the bottom end of the cross rod (213).

3. The film material cutting mechanism for composite bag production according to claim 1, characterized in that: The rotary lifting mechanism (2) further includes a fixed housing (226), the bottom of which is fixedly connected to the top of the rotary housing (212). An electric push rod (227) is fixedly connected to the inner wall of the fixed housing (226). A fixed column (225) is fixedly connected to the inner rod of the electric push rod (227). A rotating cylinder (228) is rotatably connected to the outer wall of the fixed column (225). The bottom of the rotating cylinder (228) is fixedly connected to the top of the cross rotating sleeve (221).

4. The film material cutting mechanism for composite bag production according to claim 1, characterized in that: One end of the hinge rod (218) is hinged to the inner wall of the moving block (217), and the other end of the hinge rod (218) is hinged to the inner wall of the clamping bracket (219). The inner wall of the rotating shell (212) is fixedly connected to the limiting block (229), and the limiting block (229) is slidably connected to the outer wall of the clamping bracket (219).

5. The film material cutting mechanism for composite bag production according to claim 1, characterized in that: The clamping mechanism (3) includes a material cylinder (313), a rotating rod (314) is slidably connected to the inner wall of the material cylinder (313), and a gear (317) is fixedly connected to the outer wall of the rotating rod (314).

6. The film material cutting mechanism for composite bag production according to claim 1, characterized in that: The clamping mechanism (3) also includes a hydraulic rod (311), which is fixedly connected to the outer wall of the slitting machine (1), and the inner rod of the hydraulic rod (311) is fixedly connected to a circular outer shell (318).

7. The film material cutting mechanism for composite bag production according to claim 1, characterized in that: The clamping mechanism (3) includes a fixed shell (315), the bottom end of which is slidably connected to the top of the cutter (1), a motor (316) is fixedly connected to the inner wall of the fixed shell (315), and a clamping cylinder (312) is fixedly connected to the output shaft of the motor (316). The outer wall of the clamping cylinder (312) rotates and slides on the inner wall of the cutter (1).

8. The film material cutting mechanism for composite bag production according to claim 6, characterized in that: The inner wall of the annular outer shell (318) is rotatably connected to the outer wall of the clamping cylinder (312).

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