A bag-stripping and film-removing machine

Abstract

This invention discloses a bag-straightening and unwrapping machine, including a frame and a bag-straightening and unwrapping mechanism and a bag-lifting mechanism arranged at the four corners of the frame. Through the above-described method, the bag-straightening and unwrapping machine provided by this invention automatically operates using the cooperating bag-straightening and unwrapping mechanism. The upper part of the outer bag is straightened, and the bag-lifting mechanism presses down on the outer bag opening to lift the outer bag upwards, allowing the inner packaging to be smoothly placed at the bottom of the outer bag. The outer bag is then successfully unwrapped, with the opening vertically upwards for subsequent equipment to pinch, twist, and tie the bag opening. This achieves automatic packaging and sealing of the outer bag during the inner packaging and outer bag packaging process, reducing labor intensity and improving work efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of packaging equipment, and in particular to a bag stripping and film removal machine. Background Technology

[0002] With the development of technology, mechanical automation technology has gradually expanded into various industrial fields. In recent years, it has been widely used in sorting, collecting, packaging, and boxing production operations. Its application in the packaging industry is beginning to mature, but its reliability, efficiency, and operability still need continuous improvement.

[0003] Some fully packaged materials require secondary packaging to improve airtightness and prevent leakage or damage. Current secondary packaging methods simply involve automatically inserting the inner bag into the outer bag, followed by manual pressing of the inner bag's braid into the outer bag, and then processes such as pinching, twisting, and tying the bag opening. This process is physically demanding and inefficient. Summary of the Invention

[0004] The main technical problem solved by this invention is to provide a bag-straightening and de-filming machine. Through the automatic operation of the bag-straightening and de-filming mechanism and the bag-lifting mechanism, the upper part of the outer bag is straightened, and the bag-lifting mechanism presses down on the outer bag opening to lift the outer bag upward, so that the inner package can be smoothly placed at the bottom of the outer bag, and the outer bag is successfully de-filmed. After de-filming, the outer bag opening is vertically upward, so that the subsequent equipment can pinch the bag opening, twist the bag opening, and tie the bag opening. This realizes that the outer bag can be automatically packaged and automatically sealed during the inner package and outer bag packaging process, reducing the labor intensity of workers and improving work efficiency.

[0005] To solve the above-mentioned technical problems, one technical solution adopted by the present invention is to provide a bag-rolling and film-removing machine, including a frame and bag-rolling and film-removing mechanisms and bag-lifting mechanisms arranged at the four corners of the frame for cooperative use.

[0006] The bag-lifting and film-removing mechanism includes a film-lifting frame, film-lifting supports, a lifting plate, a linear optical axis, a lifting frame, rollers, and a bag-lifting cylinder. The lifting frame is slidably mounted on two linear optical axes via rollers. The lifting frame is also connected to the bag-lifting cylinder and the film-lifting frame. Multiple film-lifting supports are respectively mounted in pairs at the four corners of the upper end of the film-lifting frame, and the lifting plate is respectively mounted on the upper end of each film-lifting support.

[0007] The bag-carrying mechanism includes a main bag support, guide shafts, rolling wheels, a side bag support, a drive sprocket, a driven sprocket, a chain, a rocker arm, a bag-carrying baffle, a geared motor, and a bag-carrying cylinder. The two guide shafts are symmetrically arranged within the main bag support. The lifting frame is slidably mounted on the two guide shafts via rolling wheels. The lifting frame is also connected to the side bag support via a connecting frame. The rocker arm is connected to the side bag support via multiple bag-carrying cylinders. The bag-carrying baffle is connected to the rocker arm. The drive sprocket and driven sprocket are respectively located at the upper and lower parts of the bag support. The chain is wound between the drive sprocket and driven sprocket. The geared motor is connected to the drive sprocket.

[0008] In a preferred embodiment of the present invention, the bag stripping and delaminating machine further includes a conveyor and a bagging mold, wherein the bagging mold is located at the upper end of the conveyor and is conveyed to the working position center of the bag stripping and delaminating machine.

[0009] In a preferred embodiment of the present invention, the bagging mold is a bottomless bagging mold.

[0010] In a preferred embodiment of the present invention, the bagging mold is fitted with an outer bag containing an inner package.

[0011] In a preferred embodiment of the present invention, the bag-making cylinder is composed of a combination of multiple cylinders.

[0012] In a preferred embodiment of the present invention, the bag baffle is provided with a bag clamping rubber.

[0013] In a preferred embodiment of the present invention, the bag cylinder drives the opening and closing of the bag clamping rubber.

[0014] In a preferred embodiment of the present invention, the bag-carrying mechanism also includes a lifting and lowering pressure mechanism.

[0015] In a preferred embodiment of the present invention, the pressure conditioning mechanism includes a pressure conditioning cylinder, a guide shaft, a guide block, a connecting plate, and a pressure plate. The guide shaft is vertically arranged on both sides of the pressure conditioning cylinder and connected to the guide block respectively. The bottom of the pressure conditioning cylinder is connected to the pressure plate through the connecting plate.

[0016] In a preferred embodiment of the present invention, a rubber pad is further provided above the pressure plate.

[0017] The beneficial effects of this invention are as follows: The bag stripping and de-filming machine provided by this invention automatically operates through the combined use of a bag stripping and de-filming mechanism and a bag lifting mechanism. It straightens the upper part of the outer bag, and the bag lifting mechanism presses down on the outer bag opening to lift the outer bag upward, so that the inner packaging can be smoothly placed at the bottom of the outer bag, and the outer bag can be successfully de-filmed. After de-filming, the outer bag opening is vertically upward, so that the subsequent equipment can pinch the bag opening, twist the bag opening, and tie the bag opening. This realizes that the outer bag can be automatically packaged and automatically sealed during the inner packaging and outer bag packaging process, reducing the labor intensity of workers and improving work efficiency. Attached Figure Description

[0018] Figure 1 This is a front view of the bag-stripping and film-removing machine of the present invention;

[0019] Figure 2 yes Figure 1 Side view;

[0020] Figure 3 yes Figure 1 Schematic diagram of the medium-pressure treatment mechanism;

[0021] Figure 4 yes Figure 2 Side view of the medium-pressure treatment mechanism;

[0022] The components in the attached diagram are labeled as follows: 1. Frame; 2. Bag-lifting and film-removing mechanism; 3. Bag-lifting mechanism; 4. Conveyor; 5. Bag-making mold; 6. Pressing mechanism; 201. Film-lifting frame; 202. Film-lifting support; 203. Roller plate; 204. Linear optical axis; 205. Lifting frame; 206. Roller; 207. Bag-lifting cylinder; 301. Bag-lifting main support; 302. Guide shaft; 303. Rolling wheel; 304. Lifting... 305. Lowering frame, 306. Bag side support, 307. Drive sprocket, 308. Driven sprocket, 309. Chain, 310. Rocker arm, 311. Bag baffle, 312. Gear motor, 313. Bag cylinder, 314. Connecting frame, 315. Bag clamping rubber, 601. Pressing cylinder, 602. Guide shaft, 603. Guide block, 604. Connecting plate, 605. Pressure plate, 606. Connecting plate, 607. Rubber pad. Specific Implementation

[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0024] Please see Figures 1 to 4 The embodiments of the present invention include:

[0025] A bag-slitting and film-removing machine includes a frame 1 and a bag-slitting and film-removing mechanism 2 and a bag-lifting mechanism 3 arranged at the four corners of the frame 1 for mutual use.

[0026] As described above, the bag stripping and delaminating machine also includes a conveyor 4 and a bagging mold 5. The bagging mold 5 is located at the upper end of the conveyor 4 and is conveyed to the working position center of the bag stripping and delaminating machine by the conveyor 4.

[0027] In this embodiment, the bagging mold 5 is a bottomless bagging mold, and an outer bag with an inner packaging is fitted onto the bagging mold 5.

[0028] The bag-lifting and film-removing mechanism 2 includes a film-lifting frame 201, film-lifting supports 202, a lifting plate 203, a linear optical axis 204, a lifting frame 205, rollers 206, and a bag-lifting cylinder 207. The lifting frame 205 is slidably mounted on two linear optical axes 204 via rollers 206. The lifting frame 205 is also connected to the bag-lifting cylinder 207 and the film-lifting frame 201. Multiple film-lifting supports 202 are respectively arranged in pairs at the four corners of the upper end of the film-lifting frame 201. The lifting plate 203 is respectively located at the upper end of each film-lifting support 202.

[0029] As described above, the bag-squeezing cylinder 207 is composed of a combination of multiple cylinders.

[0030] The bag-carrying mechanism 3 includes a bag-carrying main support 301, guide shafts 302, rolling wheels 303, a lifting frame 304, a bag-carrying side support 305, a drive sprocket 306, a driven sprocket 307, a chain 308, a rocker arm 309, a bag-carrying baffle 310, a reduction motor 311, and a bag-carrying cylinder 312. The two guide shafts 302 are symmetrically arranged within the bag-carrying main support 301. The lifting frame 304 is slidably mounted on the two guide shafts 302 via the rolling wheels 303. The lifting frame 304 is also connected to the bag-side support 305 via the connecting frame 313. The rocker arm 309 is connected to the bag-side support 305 via multiple bag-carrying cylinders 312. The bag-carrying baffle 310 is connected to the rocker arm 309. The driving sprocket 306 and the driven sprocket 307 are respectively arranged at the upper and lower parts of the bag-carrying support 301. The chain 308 is wound between the driving sprocket 306 and the driven sprocket 307. The reduction motor 311 is connected to the driving sprocket 306.

[0031] As described above, the bag baffle 310 is provided with a bag clamping rubber 314, which is driven to open and close by the bag cylinder 312.

[0032] In this embodiment, the bag-carrying mechanism 3 also has a built-in lifting and pressing mechanism 6.

[0033] The pressing mechanism 6 includes a pressing cylinder 601, a guide shaft 602, a guide block 603, a connecting plate 604, a pressure plate 605, and a connecting plate 606. The guide shaft 602 is vertically arranged on both sides of the pressing cylinder 601 and connected to the guide block 603. The bottom of the pressing cylinder 601 is connected to the pressure plate 605 through the connecting plate 604. The connecting plate is arranged on both sides of the guide block 603 and connected to the bag-carrying mechanism 3. A rubber pad 607 is also provided above the pressure plate 605.

[0034] Working principle:

[0035] The bagging mold 5, containing the inner and outer bags, is conveyed by the conveyor 4 to the working center of the bag-lifting and film-removing machine. Driven by the bag-lifting cylinder 207, the bag-lifting mechanism 2, consisting of the film lifting frame 201, film lifting support 202, lifting plate 203, linear optical axis 204, lifting frame 205, and rollers 206, descends to the bag-lifting height position of the bagging mold 5. Driven by each individual cylinder, the lifting plate 203 on the film lifting frame 201 closes, and at the same time, driven by the reduction motor 311, the bag-lifting baffle 310 of the bag-lifting mechanism 3 also descends above the corresponding bagging mold 5. At this time, the bag lifting mechanism rises a certain distance to lift the outer bag film, so that the outer bag opening is just straight on the bag lifting baffle 310; the lifting plate 203 on the bag lifting mechanism 2 releases and descends to the unwrapping height position of its bag mold 5, and then the lifting plate 203 closes to restrict the bag mold 5. Driven by the reduction motor 311, the bag lifting baffle 310 of the bag lifting mechanism 3 rises and pulls the outer bag a certain distance to sink the inner bag to the bottom of the outer bag. The pressure plate 605 of the pressing mechanism 6 built into the bag lifting mechanism 3 presses down on the inner bag under the drive of the pressing cylinder 601, pressing the inner bag braid into the outer bag and then rising. At the same time, the bag clamping rubber 314 is released, and the bag lifting mechanism 3 continues to rise to make room. Then the lifting plate 203 of the film lifting frame 201 lifts the bag mold 5 to rise, unwrap the film and rotate. The unsealed inner bag and outer bag remain on the conveying surface of the conveyor 4.

[0036] The bag-stripping and delaminating machine provided by this invention differs from existing technologies in the following ways:

[0037] 1. The upper part of the outer bag is straightened by the baffle of the bag-lifting mechanism and the bag-stripping mechanism used in conjunction, while the bag-stripping mechanism presses down on the opening of the outer bag and lifts the outer bag up, so that the inner bag can be smoothly put into the bottom of the outer bag.

[0038] 2. The pressure plate built into the bag-carrying mechanism presses the braided opening of the inner bag into the outer bag;

[0039] 3. The bagging mold adopts a bottomless bagging mold, and the outer bag containing the inner packaging is successfully de-wrapped through the bag-rolling and de-wrapping mechanism.

[0040] In summary, the bag-straightening and de-wrapping machine provided by this invention automatically operates through the combined use of a bag-straightening and de-wrapping mechanism and a bag-lifting mechanism. The upper part of the outer bag is straightened, and the bag-lifting mechanism presses down on the outer bag opening to lift it upwards, allowing the inner packaging to be smoothly placed at the bottom of the outer bag. The outer bag is then successfully de-wrapped, with the opening vertically upwards for subsequent equipment to pinch, twist, and tie the bag opening. This achieves automatic packaging and sealing of the outer bag during the inner and outer bag packaging process, reducing labor intensity and improving work efficiency.

[0041] In the description of this invention, it should be noted that all components are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional testing methods. The terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this invention is usually placed in during use. They are only for the convenience of describing this invention 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 this invention.

[0042] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A bag unwinding machine characterized by comprising: The bag pulling and film removing mechanism comprises a rack and a bag pulling mechanism and a film removing mechanism arranged at four corners of the rack, The bag pulling mechanism comprises a bag pulling total support, a guide shaft, a rolling wheel, a lifting frame, a bag pulling side support, a driving sprocket, a driven sprocket, a chain, a rocker arm, a bag pulling baffle, a speed reduction motor and a bag pulling cylinder, the two guide shafts are symmetrically arranged in the bag pulling total support, the lifting frame is slidably arranged on the two guide shafts through the rolling wheel, the lifting frame is further connected with the bag pulling side support through a connecting frame, the rocker arm is connected with the bag pulling side support through a plurality of bag pulling cylinders, the bag pulling baffle is connected with the rocker arm, the driving sprocket and the driven sprocket are arranged at the upper part and the lower part of the bag pulling support respectively, the chain is wound between the driving sprocket and the driven sprocket, and the speed reduction motor is connected with the driving sprocket. The bag pulling mechanism further comprises a liftable pressing mechanism, the pressing mechanism comprises a pressing cylinder, a guide shaft, a guide block, a connecting plate and a pressing plate, the guide shafts are vertically arranged at the two sides of the pressing cylinder and are connected with the guide blocks respectively, and the bottom of the pressing cylinder is connected with the pressing plate through the connecting plate. The bag pulling and film removing mechanism further comprises a conveyor and a bag sleeving mold, the bag sleeving mold is arranged at the upper end of the conveyor and is conveyed to the center of the working position of the bag pulling and film removing mechanism.

2. The bag unrolling machine of claim 1, wherein, The bag sleeving mold is a bottomless bag sleeving mold.

3. The bag unrolling machine of claim 2, wherein, An outer bag with an inner bag is sleeved on the bag sleeving mold.

4. The bag unrolling machine of claim 3, wherein, The bag pulling cylinder is composed of a plurality of cylinders.

5. The bag unrolling machine of claim 1, wherein, The bag pulling baffle is provided with a bag clamping rubber.

6. The bag unrolling machine of claim 1, wherein, The bag pulling cylinder drives the opening and closing of the bag clamping rubber.

7. The bag unrolling machine of claim 6, wherein, The pressing plate is further provided with a rubber pad.

8. The bag unrolling machine of claim 1, wherein, ​

Images