Automatic outer package removing device for bagged powder

Abstract

The invention discloses an automatic outer package removing device for bagged powder, and relates to the technical field of powder veterinary drug preparation and production, the automatic outer package removing device comprises a package supporting platform, a rack, a waste bag barrel, a material package, a rotary table mechanism, a rotary table, a clamping and turning-over mechanism and a bag sucking and cutting mechanism, and the bag sucking and cutting mechanism comprises a lifting air cylinder, an adsorption cover, a cutter feeding assembly, a separating assembly and a rotating assembly; an adsorption air bag is fixed to the bottom face of the adsorption cover, and multi-point fixing is conducted on the outer package of the material package through negative pressure suction. The separation assembly is provided with a vertically-arranged push plate and used for gathering powder in a bag, the inner package and the outer package are separated in a rotating friction mode under driving of the rotating assembly, then the edge of the outer package is adsorbed, and the cutting portion of the outer package is stretched and fixed. The technical effects that the adsorption firmness is improved, the stability of the cutting process is improved, the cutting face is smooth, and follow-up bag pulling operation is facilitated can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of powdered veterinary drug preparation and production, in particular to an automatic outer packaging removal device for bagged powder. Background Art

[0002] The automatic packaging removal technology for bagged powders is an automated equipment designed specifically for powdered materials. It aims to efficiently and accurately remove and separate the outer packaging of bagged powders. It is widely used in the food, pharmaceutical, chemical, building materials and feed industries. Mainly through high automation, environmentally friendly design and multi-industry adaptation, it has become a key equipment for improving efficiency, reducing costs and ensuring safety in modern industrial production.

[0003] Although the existing splitting and pulling off of outer packaging has improved work efficiency to a certain extent, it is difficult to separate the woven bags by adsorption from flexible woven bags. Since the surface of the woven bags is rough and the edges are irregular, they are more difficult to handle than smooth plastic bags. Therefore, in actual production, the adsorption may not be strong enough and the cutting may fail, causing the cutting knife to be not smooth during the cutting process, resulting in a rough cut surface of the outer packaging, affecting the subsequent bag pulling process, resulting in failure of outer packaging removal and reduced work efficiency. Summary of the Invention

[0004] This application solves the technical problems in the prior art of poor adsorption firmness, poor cutting process stability, and rough cut surface that affect subsequent bag-pulling operations by providing an automatic outer packaging device for bagged powder. It achieves the technical effects of improved adsorption firmness, improved cutting process stability, and smooth cut surface that are conducive to subsequent bag-pulling operations.

[0005] The present application provides an automatic outer packaging device for bagged powder, comprising a bag holding platform, a frame, a waste bag bucket, a material bag, a turntable mechanism, a turntable, a clamping and flipping mechanism, and a bag suction and cutting mechanism. The bag suction and cutting mechanism comprises a lifting cylinder, an adsorption cover, a feed assembly, a separation assembly, and a rotating assembly. The bottom surface of the adsorption cover is fixed with an adsorption air bag, which fixes the outer packaging of the material bag at multiple points through negative pressure suction; The separation component is provided with a vertically arranged push plate for gathering the powder in the bag, and under the drive of the rotating component, separates the inner and outer packaging by means of rotational friction, and then absorbs the edge of the outer packaging to achieve stretching and fixation of the cut part of the outer packaging.

[0006] Furthermore, the lifting cylinder is fixed on the turntable and is used to drive the adsorption cover to rise and fall; the adsorption cover is a square cover body with an opening at the bottom, which is used to cover the material bag, and a square knife groove is opened in the middle of the adsorption cover.

[0007] Furthermore, the adsorption airbag is connected to the external air pump through an airway, and a plurality of adsorption holes are evenly opened at the bottom thereof. A plurality of airbags are fixed to the bottom of the adsorption airbag. The airbags are annular in structure and correspond one to one with the adsorption holes. Multi-point negative pressure adsorption and fixation are performed on the outer packaging through negative pressure suction.

[0008] Furthermore, the airbag is divided into two groups, including a large airbag fixed at the center of the bottom of the adsorption airbag and multiple small airbags evenly distributed at the bottom of the adsorption airbag. The large airbag is used for the middle of the outer packaging of the adsorption material bag, and the small airbag is used for multi-point negative pressure suction of the upper surface of the outer packaging.

[0009] Furthermore, the feed assembly includes a cylinder 1, a tool holder, an electric slide and a cutter; The cylinder is fixed on the top of the adsorption cover; the knife holder is square and is slidably connected in the adsorption cover; there are four cutters, which are slidably connected in the knife holder through electric sliders, and are driven by the cylinder to extend from the knife groove to cut the outer packaging of the material bag.

[0010] Furthermore, the separation assembly is provided with four groups, which are fixed on the side of the adsorption cover respectively, and are used to realize the migration of the powder in the material bag, thereby reducing the cutting resistance, including an electric push rod, a fixed plate and a push plate; The electric push rod is fixed to the side of the adsorption cover; the fixed plate is fixed to the telescopic end of the electric push rod; the push plate is rotatably connected to the fixed plate through a torsion spring, and is used to gather the powder in the material bag from all sides inward by squeezing, so that the bag surface above the outer packaging of the material bag is relaxed, thereby reducing cutting resistance.

[0011] Furthermore, the push plate is an arc-shaped structure, and a position groove is provided on one side close to the material bag. A plurality of suction holes are evenly provided inside the position groove along its length direction. The suction holes are connected to the external pump body through an internal air channel and are used to adsorb the edge of the outer packaging, so that the cutting position of the outer packaging of the material bag remains in a stretched state, reducing the feed resistance.

[0012] Furthermore, the rotating assembly is provided with four groups, corresponding to the separation assembly one by one, and respectively fixed on the corresponding fixed plate. Each group of rotating assemblies includes two rotating assemblies arranged in a mirror image, which are used to drive the push plate to rotate to achieve rapid separation of the inner and outer packaging, including a bracket, a first roller, a second roller, a first pull rope and a second pull rope; The bracket is fixed on the fixed plate; the roller one and the roller two are arranged side by side and are both fixed on the bracket, and are driven to rotate by their internal motors respectively to realize the winding and releasing of the pull rope one and the pull rope two; the pull rope one and the pull rope two are respectively passed around the roller one and the roller two, and are connected to the upper and lower ends of the push plate.

[0013] Furthermore, the top of the push plate is rotatably connected to a plurality of ring clamps through a hinge seat, and the bottom ends of the ring clamps are fixed with magnets; an electromagnet that cooperates with the magnet is fixed to the side of the push plate close to the material bag. After the electromagnet is energized, it attracts the magnet and drives the ring clamp to rotate, clamping the corners of the outer packaging adsorbed to the position groove, so that the cut part on the upper surface of the outer packaging is straightened to facilitate subsequent cutting.

[0014] Furthermore, the control process of the push plate sucking and pulling the outer packaging of the material bag is as follows: Step 1: After the adsorption airbag and airbag 1 are fixed to the upper surface of the outer packaging at multiple points through negative pressure suction, the electric push rod is started to drive the push plate to move toward the material bag. The push plate gathers the powder from all sides inward, so that a buffer air gap is formed between the outer packaging and the inner packaging of the powder; Step 2: Start the internal motors of rollers 1 and 2, driving roller 2 to reel in rope 2 and driving roller 1 to release rope 1, causing the push plate to rotate clockwise. At this time, the top of the push plate first contacts the upper edge of the outer packaging and absorbs the upper edge of the outer packaging through the suction hole, causing it to be absorbed into the position slot; Step 3: Power on the electromagnet to attract the magnet on the ring clamp and drive the ring clamp to rotate, clamping the edge of the outer package to fix the position of the outer package edge; Step 4: Drive roller 2 to release rope 2 and drive roller 1 to reel in rope 1, causing the push plate to rotate counterclockwise outward. At this time, the outer packaging with a fixed edge is pulled outward by the push plate. At the same time, under the action of the adsorption airbag and airbag 1, the outer packaging is pulled into an umbrella-shaped structure, so that the cutting part on the upper surface of the outer packaging is stretched open, and then the cutter is driven to cut along the knife groove.

[0015] One or more technical solutions provided in this application have at least the following technical effects or advantages: By using an adsorption air bag and multiple annular air bags, negative pressure suction is used to fix the outer packaging of the material bag at multiple points, thereby improving the firmness of the adsorption; by setting a push plate in the separation component, the powder is gathered inward from all sides, forming a powder migration effect, so that the bag surface above the outer packaging of the material bag is relaxed, thereby reducing the resistance during cutting; by setting a rotating component, the push plate adsorbs the edge of the outer packaging and stretches into an umbrella-shaped structure during the rotation process, thereby optimizing the cutting path, significantly reducing the cutting resistance, and improving the stability of the cutting process, thereby solving the technical problems in the prior art of poor adsorption firmness, poor cutting process stability, and rough cut surface that affect subsequent bag-pulling operations, and achieving the technical effects of improved adsorption firmness, improved cutting process stability, and smooth cut surface that are conducive to subsequent bag-pulling operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1The present invention is a schematic structural diagram of a bag suction and cutting assembly of an automatic outer packaging removal device for bagged powder at the bag pulling and cutting stations.

[0017] Figure 2 The present invention is a structural schematic diagram of an automatic outer packaging removal device for bagged powder at a bag throwing station and a clamping and turning mechanism when turning over.

[0018] Figure 3 The present invention is a cross-sectional view of the partial structure of the bag suction and cutting mechanism of the automatic outer packaging removal device for bagged powder.

[0019] Figure 4 The present invention is a bottom view of the bag suction and cutting mechanism of the automatic outer packaging removal device for bagged powder.

[0020] Figure 5 The present invention provides a full transverse cross-sectional view of an adsorption cover and an adsorption air bag of an automatic outer packaging removal device for bagged powder.

[0021] Figure 6 The present invention is a three-dimensional structural diagram of the separation component and the rotation component of the automatic outer packaging removal device for bagged powder.

[0022] Figure 7 The figure is a schematic side perspective structural diagram of a separation component and a rotation component of an automatic outer packaging removal device for bagged powders according to the present invention.

[0023] Figure 8 This is a full longitudinal cross-sectional view of a push plate of an automatic outer packaging removal device for bagged powder according to the present invention, when the push plate circumferentially clamps the material bag.

[0024] Figure 9 This is a longitudinal full-section view of a push plate of an automatic outer packaging removal device for bagged powder according to the present invention, when pre-separating the inner and outer packaging of a material bag during the rotation process.

[0025] Figure 10 This is a schematic diagram of the state when the push plate of the automatic outer packaging removal device for bagged powder materials of the present invention adsorbs and clamps the upper end surface of the outer packaging of the material bag.

[0026] In the accompanying drawings, the components represented by the reference numerals are as follows: 100, bag platform; 101, frame; 102, waste bag barrel; 103, material bag; 110, rotating disc mechanism; 111, rotating table; 120, clamping and turning mechanism; 200, bag suction and cutting mechanism; 201, lifting cylinder; 202, suction cover; 203, knife groove; 210, feeding assembly; 211, cylinder one; 212, knife holder; 213, electric sliding block; 214, cutting knife; 220, suction air bag; 221, air bag one; 222, suction hole; 230, separation assembly; 231, electric push rod; 232, fixed plate; 240, push plate; 241, position slot; 242, suction hole; 243, electromagnet; 244, ring clamp; 245, magnet; 250, rotating assembly; 251, support; 252, roller one; 253, roller two; 254, pull rope one; 255, pull rope two. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0028] In the description of the present application, the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified.

[0029] In the description of the present application, the term "for example" is used to indicate "as an example, illustration or explanation". Any embodiment described as "for example" in the present application is not necessarily interpreted as more preferred or more advantageous than other embodiments. The following description is given in order to enable any person skilled in the art to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that those skilled in the art can realize the present application without using these specific details. In other examples, well-known structures and processes will not be described in detail in order to avoid unnecessary details making the description of the present application obscure. Therefore, the present application is not intended to be limited to the shown embodiments, but is consistent with the broadest scope in accordance with the principles and characteristics disclosed in the present application.

[0030] Please refer to Figure 1, which is a structural schematic diagram of the bag suction and bag cutting components of an automatic outer packaging device for bagged powder materials of the present invention at the bag pulling and bag cutting stations; the automatic outer packaging device for bagged powder materials of the present application uses an adsorption air bag 220 and multiple annular air bags 221 to use negative pressure suction to fix the outer packaging of the material bag 103 at multiple points, thereby improving the firmness of adsorption; by setting the push plate 240 in the separation component 230, the powder is gathered inward from all sides, forming a powder migration effect, so that the bag surface above the outer packaging of the material bag 103 is relaxed, thereby reducing the resistance during cutting; by setting the rotating component 250, the push plate 240 can optimize the cutting path by adsorbing the edge of the outer packaging and stretching it into an umbrella-shaped structure during the rotation process, significantly reducing the cutting resistance and improving the stability of the cutting process; the technical effects of improved adsorption firmness, improved cutting process stability, and smooth cut surface are achieved, which is conducive to the subsequent bag pulling operation.

[0031] Example 1: like Figures 1 to 7 As shown, the present application discloses an automatic outer packaging device for bagged powder, comprising a bag holding platform 100, a frame 101, a waste bag bucket 102, a material bag 103, a turntable mechanism 110, a turntable 111, a clamping and flipping mechanism 120, and a bag suction and cutting mechanism 200. The bag suction and cutting mechanism 200 comprises a lifting cylinder 201, an adsorption cover 202, a feed assembly 210, a separation assembly 230, and a rotating assembly 250. The bottom surface of the adsorption cover 202 is fixed with an adsorption air bag 220, which fixes the outer packaging of the material bag 103 at multiple points through negative pressure suction; The separation component 230 has a vertically arranged push plate 240 for gathering the powder in the bag and, driven by the rotating component 250, separating the inner and outer packages by rotational friction, thereby adsorbing the edge of the outer package to achieve stretching and fixation of the cut portion of the outer package.

[0032] The lifting cylinder 201 is fixed on the turntable 111 and is used to drive the adsorption cover 202 to rise and fall; the adsorption cover 202 is a square cover body with an open bottom, which is used to cover the material bag 103. A square knife groove 203 is opened in the middle of the adsorption cover 202.

[0033] The adsorption airbag 220 is connected to the external air pump through an airway, and a plurality of adsorption holes 222 are evenly opened at the bottom thereof. A plurality of airbags 1 221 are fixed to the bottom of the adsorption airbag 220. The airbags 1 221 are annular in structure and correspond one-to-one with the adsorption holes 222. Multi-point negative pressure adsorption and fixation of the external packaging are performed through negative pressure suction.

[0034] Furthermore, the airbag 1 221 is divided into two groups, including a large airbag fixed at the center of the bottom of the adsorption airbag 220 and multiple small airbags evenly distributed at the bottom of the adsorption airbag 220. The large airbag is used to adsorb the middle of the outer packaging of the material package 103, while the small airbags are used to apply negative pressure to the upper surface of the outer packaging at multiple points. By fixing the adsorption airbag 220 at the bottom of the adsorption cover 202 and disposing multiple annular airbags 1 221 at the bottom of the airbag, when the airbag 1 221 contacts the outer packaging, a relatively closed space is formed between the airbag 1 221 and the outer packaging. Then, negative pressure is applied to the outer packaging at multiple points through the adsorption holes 222, improving the adsorption effect. This multi-point negative pressure suction of the outer packaging not only increases the number of adsorption points and improves the firmness of adsorption, but also effectively solves the problem of loose adsorption caused by the rough surface and irregular corners of the flexible woven bag. During the cutting process, the outer packaging can be stably fixed under the adsorption cover 202, reducing the displacement of the bag surface during cutting due to loose adsorption, and improving the success rate of cutting and the quality of the cut surface.

[0035] The feed assembly 210 includes a cylinder 211, a tool holder 212, an electric slide 213 and a cutter 214; The cylinder 1 211 is fixed to the top of the adsorption cover 202; the knife holder 212 is square and is slidably connected in the adsorption cover 202; four cutters 214 are provided, which are slidably connected in the knife holder 212 through electric sliders 213, and are driven by the cylinder 1 211 to extend from the knife groove 203 to cut the outer packaging of the material bag 103.

[0036] The separation assembly 230 is provided with four groups, which are fixed to the side of the adsorption cover 202 respectively, and are used to achieve the migration of the powder in the material bag 103, thereby reducing the cutting resistance. It includes an electric push rod 231, a fixed plate 232 and a push plate 240; The electric push rod 231 is fixed to the side of the adsorption cover 202; the fixed plate 232 is fixed to the telescopic end of the electric push rod 231; the push plate 240 is rotatably connected to the fixed plate 232 through a torsion spring, and is used to gather the powder in the material bag 103 from all sides inward by squeezing, so that the bag surface above the outer packaging of the material bag 103 is relaxed, thereby reducing cutting resistance.

[0037] The push plate 240 in the separation component 230 gathers the powder inward from all sides, forming a powder migration effect. This gathering effect leaves space above the outer packaging of the material bag 103, and the bag surface is relaxed, thereby reducing the resistance during cutting and avoiding the bag surface being tight due to the powder filling the woven bag. This allows the cutter 214 to cut more smoothly and reduces the risk of the cutter 214 slipping or deflecting.

[0038] After push plate 240 gathers the powder, a "buffer air gap" forms between the outer packaging and the powder layer. This air gap acts as a barrier during the cutting process, reducing pressure and cutting resistance from cutter 214 on the inner packaging. This prevents direct contact between cutter 214 and the inner packaging, lowering the possibility of rupturing the inner bag and improving product safety. Furthermore, due to the loose outer packaging and the presence of the buffer air gap, cutter 214 can more accurately follow the predetermined cutting path, reducing rough cuts caused by high cutting resistance or tight bag surfaces, thereby improving the smoothness and quality of the cut.

[0039] Furthermore, the push plate 240 is an arc-shaped structure, and a position groove 241 is provided on a side close to the material bag 103. A plurality of suction holes 242 are evenly provided inside the position groove 241 along its length direction. The suction holes 242 are connected to the external pump body through an internal air channel and are used to adsorb the edge of the outer packaging, so that the cutting position of the outer packaging of the material bag 103 remains in a stretched state, thereby reducing the feed resistance.

[0040] The rotating assembly 250 is provided in four groups, corresponding to the separation assembly 230 one by one, and is fixed on the corresponding fixed plate 232 respectively. Each group of rotating assembly 250 includes two rotating assemblies 250 arranged in a mirror image, which is used to drive the push plate 240 to rotate to achieve rapid separation of the inner and outer packages, including a bracket 251, a roller 1 252, a roller 253, a pull rope 1 254 and a pull rope 255; The bracket 251 is fixed on the fixed plate 232; the roller 1 252 and the roller 2 253 are arranged in parallel and are both fixed on the bracket 251, and are driven to rotate by their internal motors to realize the winding and releasing of the pull rope 1 254 and the pull rope 2 255; the pull rope 1 254 and the pull rope 2 255 are respectively passed around the roller 1 252 and the roller 2 253, and are connected to the upper and lower ends of the push plate 240.

[0041] Through the coordinated action of the rotating component 250 and the push plate 240, and in conjunction with the adsorption effect of the push plate 240, the outer packaging of the material bag 103 can be stretched into an umbrella-shaped structure during the rotation of the push plate 240. This microscopic deformation forms a "pre-tensioned" state in the cutting area, optimizing the cutting path. From a microscopic perspective, the fibers on the bag surface are rearranged, and the fiber directions on the cutting path tend to be consistent, providing a smoother cutting channel for the cutter 214 and significantly reducing the cutting resistance; the formed umbrella-shaped stretching structure makes the cutting surface more evenly stressed, and the cutting edge of the cutter 214 cuts the bag surface fibers more synchronously, reducing the difference in fiber breakage, making the incision smoother and with fewer burrs. By optimizing the cutting path and reducing the cutting resistance, the cutting speed and production efficiency are significantly improved.

[0042] The turntable mechanism 110 is used to drive the bag suction and bag cutting mechanism 200 to rotate and realize the station switching, and includes a turntable 111, a large gear plate, and a small gear, which is preferably driven by a motor; the clamping and turning mechanism 120 is used to turn the material bag 103 over so that the bag suction and bag cutting mechanism 200 can remove the remaining outer packaging bag, and includes a swing arm, a rotating frame, two front and rear arranged clamping plates, a lifting cylinder, a clamping cylinder and a stepping motor, such as Figure 2 As shown, the lifting cylinder mainly drives the horizontal arm of the swing arm to swing upward, thereby lifting the material bag 103 from the bag supporting platform 100. While the swing arm lifts the material bag 103, the clamping cylinder drives the clamping plate to move toward the material bag 103 and clamps the material bag 103. After clamping the material bag 103, the stepper motor drives the rotating frame to rotate to realize the flipping operation of the material bag 103. After the material bag 103 is flipped over, the lifting cylinder retracts and drives the horizontal arm of the swing arm to swing downward, placing the flipped material bag 103 back on the bag supporting platform 100, and then each component returns to its original position to complete the entire flipping process of the material bag 103; all of these are existing technologies and will not be described here.

[0043] During the actual use of this embodiment: first, the material bag 103 is transferred to the outer packaging unpacking station through the bag supporting platform 100, the turntable mechanism 110 drives the bag suction and cutting mechanism 200 to rotate above the material bag 103, and the lifting cylinder 201 drives the adsorption cover 202 to descend and cover the material bag 103. At this time, the adsorption airbag 220 contacts the outer packaging of the material bag 103 to form a relatively closed space, and multi-point negative pressure suction is performed through the adsorption holes 222 to achieve firm adsorption of the outer packaging; then, the electric push rod 231 in the separation component 230 drives the push plate 240 to move toward the material bag 103, and the push plate 240 gathers the powder inward from all sides, so that there is space above the outer packaging. At the same time, the suction holes 242 inside the push plate 240 are pressed against the outer packaging. The edge of the outer packaging is sucked to further fix the outer packaging, and the cylinder 1 211 is started to drive the knife holder 212 to descend, and the cutter 214 cuts the outer packaging along the preset path; finally, after the cutting is completed, the electric push rod 231 drives the push plate 240 to return to the initial position, and the cut outer packaging is adsorbed by the adsorption airbag 220, and the lifting cylinder 201 drives the adsorption cover 202 to rise, and the turntable mechanism 110 drives the adsorption cover 202 to rotate to the top of the waste bag barrel 102 for disposal, and at the same time, the clamping and turning mechanism 120 turns the material bag 103 over, and the adsorption cover 202 continues to rotate to the top of the material bag 103, and the adsorption airbag 220 and the adsorption hole 222 perform negative pressure suction to remove the remaining outer packaging bag and put it into the waste bag barrel 102, completing the entire outer packaging removal action.

[0044] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: The invention solves the technical problems in the prior art of poor adsorption firmness, poor cutting process stability, and rough cut surface which affect the subsequent bag-pulling operation, and achieves the technical effects of improved adsorption firmness, improved cutting process stability, and smooth cut surface which are conducive to the subsequent bag-pulling operation.

[0045] Example 2: In order to further reduce cutting resistance and improve cutting efficiency, the present application proposes the following technical solutions to address the above technical issues, specifically: like Figures 3 to 10 As shown, the top of the push plate 240 is rotatably connected to a plurality of ring clamps 244 through a hinge seat, and the bottom ends of the ring clamps 244 are fixed with magnets 245; the side of the push plate 240 close to the material bag 103 is fixed with an electromagnet 243 that cooperates with the magnet 245. After the electromagnet 243 is energized, it attracts the magnet 245 and drives the ring clamps 244 to rotate, clamping the edges and corners of the outer packaging adsorbed to the position groove 241, so that the cut part on the upper surface of the outer packaging is straightened to facilitate subsequent cutting.

[0046] The control process of the push plate 240 sucking and pulling the outer packaging of the material bag 103 is as follows: Step 1: After the adsorption airbag 220 and the airbag 1 221 are fixed to the upper surface of the outer packaging at multiple points by negative pressure suction, the electric push rod 231 is activated to drive the push plate 240 to move toward the material bag 103. The push plate 240 gathers the powder from all sides inward, so that a buffer air gap is formed between the outer packaging and the inner packaging of the powder; Step 2: Start the internal motors of roller 1 252 and roller 2 253, driving roller 2 253 to reel in drawstring 2 255 and driving roller 1 252 to release drawstring 1 254, causing push plate 240 to rotate clockwise. At this time, the top end of push plate 240 first contacts the upper edge of the outer packaging and absorbs the upper edge of the outer packaging through suction hole 242, causing it to be absorbed into position slot 241. Step 3: The electromagnet 243 is energized to attract the magnet 245 on the ring clamp 244 and drive the ring clamp 244 to rotate, clamping the edge of the outer package to fix the position of the outer package edge; Step 4: Drive roller 2 253 to release pull rope 2 255 and drive roller 1 252 to reel in pull rope 1 254, causing the push plate 240 to rotate counterclockwise outward. At this time, the outer packaging with the fixed edge is pulled outward by the push plate 240. At the same time, under the action of the adsorption airbag 220 and airbag 1 221, the outer packaging is pulled into an umbrella-shaped structure, so that the cutting part on the upper surface of the outer packaging is stretched open, and then the cutter 214 is driven to cut along the knife groove 203.

[0047] The present application achieves microscopic precise clamping of the outer packaging corners by arranging a rotatable ring clamp 244 at the top of the push plate 240 and cooperating with the adsorption effect of the electromagnet 243. The clamping effect of the ring clamp 244 limits the movement of the outer packaging corners at the micro level, reduces the cutting instability caused by the displacement of the bag surface during the cutting process, and enables the outer packaging corners to be firmly and accurately fixed during the cutting process, reduces the displacement of the bag surface during the cutting process, improves the cutting stability, and ensures the linearity and accuracy of the cutting trajectory. The precise corner clamping and stable cutting process help to obtain a smoother and more beautiful cutting surface, reduce cutting burrs and tearing, and improve the appearance quality and overall quality of the product.

[0048] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications of the present invention fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. An automatic outer packaging device for bagged powder, comprising a bag holding platform (100), a frame (101), a waste bag bucket (102), a material bag (103), a turntable mechanism (110), a turntable (111), a clamping and turning mechanism (120) and a bag suction and cutting mechanism (200), characterized in that: The bag suction and cutting mechanism (200) comprises a lifting cylinder (201), an adsorption cover (202), a feed assembly (210), a separation assembly (230) and a rotation assembly (250); An adsorption air bag (220) is fixed on the bottom surface of the adsorption cover (202), and the outer packaging of the material bag (103) is fixed at multiple points through negative pressure suction; The separation component (230) is provided with a vertically arranged push plate (240) for gathering the powder in the bag and, driven by the rotation component (250), separating the inner and outer packages by means of rotational friction, thereby adsorbing the edge of the outer package to achieve stretching and fixing of the cut portion of the outer package.

2. The automatic outer packaging removal device for bagged powder according to claim 1, characterized in that: The lifting cylinder (201) is fixed on the turntable (111) and is used to drive the adsorption cover (202) to move up and down; the adsorption cover (202) is a square cover body with an open bottom, which is used to cover the material bag (103); a square knife groove (203) is opened in the middle of the adsorption cover (202).

3. The automatic outer packaging removal device for bagged powder according to claim 1, characterized in that: The adsorption airbag (220) is connected to the external air pump through an air channel, and a plurality of adsorption holes (222) are evenly opened at the bottom of the adsorption airbag (220). A plurality of airbags (221) are fixed to the bottom of the adsorption airbag (220). The airbags (221) are annular in structure and correspond one to one with the adsorption holes (222). The outer packaging is fixed by multi-point negative pressure adsorption through negative pressure suction.

4. The automatic outer packaging removal device for bagged powder according to claim 3, characterized in that: The airbag 1 (221) is divided into two groups, including a large airbag fixed at the bottom center of the adsorption airbag (220) and a plurality of small airbags evenly distributed at the bottom of the adsorption airbag (220). The large airbag is used to adsorb the middle of the outer packaging of the material bag (103), and the small airbags are used to vacuum the upper surface of the outer packaging at multiple points.

5. The automatic outer packaging removal device for bagged powder according to claim 1, characterized in that: The feed assembly (210) includes a cylinder (211), a tool holder (212), an electric slide (213), and a cutter (214); The cylinder 1 (211) is fixed to the top of the adsorption cover (202); the knife holder (212) is square and slidably connected in the adsorption cover (202); four cutters (214) are provided, which are slidably connected in the knife holder (212) through electric sliders (213) and extend from the knife groove (203) under the drive of the cylinder 1 (211) to cut the outer packaging of the material bag (103).

6. The automatic outer packaging removal device for bagged powder according to claim 1, characterized in that: The separation assembly (230) is provided with four groups, which are respectively fixed to the side of the adsorption cover (202) and are used to achieve the migration of powder in the material bag (103) to reduce the cutting resistance, including an electric push rod (231), a fixed plate (232) and a push plate (240); The electric push rod (231) is fixed to the side of the adsorption cover (202); the fixed plate (232) is fixed to the telescopic end of the electric push rod (231); the push plate (240) is rotatably connected to the fixed plate (232) via a torsion spring, and is used to gather the powder in the material bag (103) from all sides inward by squeezing, so that the bag surface above the outer packaging of the material bag (103) is relaxed, thereby reducing cutting resistance.

7. The automatic outer packaging removal device for bagged powder according to claim 6, characterized in that: The push plate (240) is an arc-shaped structure, and a position groove (241) is provided on a side thereof close to the material bag (103). A plurality of suction holes (242) are evenly provided inside the position groove (241) along its length direction. The suction holes (242) are connected to the external pump body through an internal air channel and are used to absorb the edge of the outer packaging, so that the cutting position of the outer packaging of the material bag (103) remains in a stretched state, thereby reducing the feed resistance.

8. The automatic outer packaging removal device for bagged powder according to claim 7, characterized in that: The rotating components (250) are provided in four groups, corresponding to the separation components (230) one by one, and are respectively fixed on the corresponding fixed plates (232). Each group of rotating components (250) includes two rotating components (250) arranged in a mirror image, which are used to drive the push plate (240) to rotate to achieve rapid separation of the inner and outer packages, and includes a bracket (251), a first roller (252), a second roller (253), a first pull rope (254), and a second pull rope (255). The bracket (251) is fixed on the fixed plate (232); the roller 1 (252) and the roller 2 (253) are arranged in parallel and are both fixed on the bracket (251), and are driven to rotate by the internal motors thereof to realize the winding and releasing of the pull rope 1 (254) and the pull rope 2 (255); the pull rope 1 (254) and the pull rope 2 (255) respectively pass around the roller 1 (252) and the roller 2 (253), and are connected to the upper and lower ends of the push plate (240).

9. The automatic outer packaging removal device for bagged powder according to claim 8, characterized in that: The top of the push plate (240) is rotatably connected to a plurality of ring clamps (244) through a hinge seat, and the bottom ends of the ring clamps (244) are all fixed with magnets (245); an electromagnet (243) cooperating with the magnet (245) is fixed to the side of the push plate (240) close to the material bag (103); after the electromagnet (243) is energized, it attracts the magnet (245) and drives the ring clamps (244) to rotate, clamping the corners of the outer packaging attracted to the position groove (241), so that the cut portion on the upper surface of the outer packaging is straightened to facilitate subsequent cutting.

10. The automatic outer packaging removal device for bagged powder according to claim 9, characterized in that: The control process of the push plate (240) sucking and pulling the outer packaging of the material bag (103) is as follows: Step 1: After the adsorption airbag (220) and airbag 1 (221) are fixed to the upper surface of the outer packaging by multiple points of adsorption through negative pressure suction, the electric push rod (231) is started to drive the push plate (240) to move toward the material bag (103), and the push plate (240) gathers the powder from all sides inward, so that a buffer air gap is formed between the outer packaging and the inner packaging of the powder; Step 2: Start the internal motors of roller 1 (252) and roller 2 (253), drive roller 2 (253) to reel in drawstring 2 (255) and drive roller 1 (252) to release drawstring 1 (254), so that the push plate (240) rotates clockwise. At this time, the top of the push plate (240) first contacts the edge of the upper surface of the outer package and absorbs the edge of the upper surface of the outer package through the suction hole (242), so that the outer package is absorbed into the position groove (241); Step 3: energize the electromagnet (243), attract the magnet (245) on the ring clamp (244), and drive the ring clamp (244) to rotate, clamping the edge of the outer package to achieve a fixed position of the edge of the outer package; Step 4: Drive roller 2 (253) to release rope 2 (255) and drive roller 1 (252) to reel rope 1 (254), so that the push plate (240) rotates outward counterclockwise. At this time, the outer packaging with the fixed edge is pulled outward by the push plate (240). At the same time, under the action of the adsorption airbag (220) and airbag 1 (221), the outer packaging is pulled into an umbrella-shaped structure, so that the cutting part on the upper surface of the outer packaging is stretched open, and then the cutter (214) is driven to cut along the knife groove (203).

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