Bale breaker

By designing a depacking machine for cutting and roller bag cleaning mechanisms, the problem of packaging bag fragments being mixed into materials and materials remaining in packaging bags is solved, and efficient unpacking and bag cleaning is achieved, reducing production costs and dust pollution.

CN223187832UActive Publication Date: 2025-08-05JIANGSU BAIER INTELLIGENT EQUIP CO LTD
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Patent Information

Application Number
CN202421746671.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-08-05
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

During the bag breaking process of existing unpacking machines, packaging bag fragments are easily mixed into the material and difficult to remove, and the material is easily stored in the packaging bag, resulting in low production efficiency and increased cost.

Method used

A depacking machine including a cutting mechanism, an upper conveyor mechanism, a lower conveyor mechanism, a drum bag cleaning mechanism and a hopper is designed. The packaging bag is cut horizontally using a circulation cutting line, combined with the drum bag cleaning mechanism and a guide frame to ensure that the material is effectively leaked and the material remaining in the packaging bag is removed, and a dust collector is added to treat dust.

Benefits of technology

Effectively avoid packaging bag fragments being mixed into the material, improve material leakage efficiency, reduce material waste, reduce production costs, and improve the operating environment.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223187832U_ABST
    Figure CN223187832U_ABST
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Abstract

The bale breaker comprises a machine frame, a cutting mechanism, an upper conveying mechanism, a lower conveying mechanism, a roller bag cleaning mechanism and a hopper are sequentially arranged on the machine frame from top to bottom, and the cutting mechanism comprises a cutting motor, an upper wheel set, a lower wheel set and a cutting line. The lower wheel set comprises two supporting wheels which are located above the two sides of the upper conveying mechanism respectively and rotationally connected with the rack, a cutting line sequentially bypasses the two supporting wheels and the upper wheel set to form an end-to-end closed cutting coil, the upper wheel set is connected with a cutting motor, and the input end of the lower conveying mechanism is connected with the output end of the upper conveying mechanism in a matched mode. A guide cylinder is connected between the output end of the lower conveying mechanism and a bag inlet of the roller bag cleaning mechanism. According to the utility model, fragments of an unpacked packaging bag can be effectively prevented from being mixed into materials, the situation that the materials remain in the packaging bag can be avoided, the production cost is reduced, and the production efficiency is improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of unpacking, and in particular relates to a unpacking machine. Background Art

[0002] Existing bag unpacking machines often break bags into multiple pieces of varying sizes and shapes during the bag-breaking process. These pieces easily mix with the material and cannot be automatically removed, requiring further processing. This cumbersome operation process reduces production efficiency. Sometimes, material remains in the broken bags, resulting in material waste and increased production costs. Therefore, there is an urgent need to optimize and improve the existing bag unpacking machine structure, change the unpacking method, prevent bag fragments from mixing with the material, simplify the process, and add bag turning and cleaning functions to reduce material waste, lower production costs, and improve production efficiency. Utility Model Content

[0003] In view of the deficiencies in the background technology, the utility model provides a packaging unpacking machine, which can effectively prevent the packaging bag fragments from being mixed into the materials after unpacking, and can also prevent the materials from remaining in the packaging bags, thereby reducing production costs and improving production efficiency.

[0004] To achieve the above objectives, the technical solutions of this utility model are as follows:

[0005] The lower wheel assembly comprises two support wheels, each of which is respectively located above the upper and lower sides of the upper conveying mechanism and is rotatably connected to the frame. The lower wheel assembly comprises two support wheels, each of which is respectively located above the upper and lower sides of the upper conveying mechanism and is rotatably connected to the frame. The cutting wheel passes through the two support wheels and the upper wheel assembly in sequence to form a closed cutting coil connected end to end. The upper wheel assembly is connected to the cutting motor, the input end of the lower conveying mechanism is cooperated with the output end of the upper conveying mechanism, the output end of the lower conveying mechanism is connected with the bag inlet of the roller bag clearing mechanism, and the roller bag clearing mechanism comprises a roller rotatably connected to the frame, a V-shaped guide plate and a roller driving mechanism that drives the roller to rotate, the V-shaped guide plate is inverted above the roller, the bag inlet is provided at one end of the roller, and the other end of the roller is provided with a bag outlet.

[0006] Preferably, a guide assembly is provided above the input end of the upper conveying mechanism, and the guide assembly includes two V-shaped guide plates distributed on both sides of the upper conveying mechanism, forming a trumpet-shaped structure with a width gradually decreasing along the conveying direction.

[0007] Preferably, the two guide plates are located between the two support wheels, and each guide plate is provided with a cutting groove, and the cutting line passes through the cutting groove. Each support wheel is also provided with a cutting line limiting assembly on the side close to the other support wheel, and the cutting line limiting assembly includes two limiting wheels, and the two limiting wheels are located on both sides of the cutting line and are tangent to the cutting line.

[0008] Preferably, a guide frame is obliquely arranged between the output end of the upper conveying mechanism and the input end of the lower conveying mechanism, and the lower end of the guide frame is located below the output end of the upper conveying mechanism and above the input end of the lower conveying mechanism. The guide frame includes a crossbeam, at least two parallel guide rods connected to the crossbeam at intervals and obliquely arranged, and the crossbeam is connected to the higher end of each guide rod.

[0009] Preferably, the frame is also rotatably connected to a roller parallel to the crossbeam, and the roller is coaxially provided with guide wheels matching the number of guide rods, the guide wheels and the guide rods are alternately spaced, and one end of the roller is connected to a bag turning motor that drives it to rotate.

[0010] Preferably, a bag blocking assembly is provided on the frame, and the bag blocking assembly spans above the upper conveying mechanism. The bag blocking assembly includes an upper cross bar and a lower cross bar arranged in parallel, and at least two support rods are evenly spaced and connected between the upper cross bar and the lower cross bar.

[0011] Preferably, the drum driving mechanism includes a drum motor, a driving gear and a ring gear, the drum motor is connected to the driving gear, the driving gear is meshed with the ring gear, and the ring gear is arranged outside one end of the drum along the circumferential direction of the drum.

[0012] Preferably, convex rings are provided on the outside of both ends of the roller in the circumferential direction, each of the convex rings is in transmission cooperation with the support wheels provided on both sides thereof, each of the support wheels is rotatably connected to the frame, and the frame is also rotatably connected to two pressure wheels which are respectively in transmission cooperation with the two convex rings in a one-to-one correspondence.

[0013] Preferably, the outer side of the frame is covered with a shell, and a dust collector is provided on one side of the upper end thereof, the air inlet of the dust collector is connected to the interior of the shell, and the top of the dust collector is provided with an exhaust port.

[0014] Preferably, the frame is rotatably connected to a support shaft, the support shaft spans above the upper conveying mechanism, and at least two crushing wheels are evenly spaced axially thereon, one end of the support shaft is connected to a drive motor, and the bottom of the hopper is provided with a discharge port, and a crushing mechanism is provided at the discharge port.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The utility model utilizes a circular cutting line to cut the packaging bag horizontally, dividing the packaging bag into two complete upper and lower parts, thereby preventing the packaging bag fragments from mixing into the material, reducing the trouble of subsequent cleaning of the fragments, and simplifying the process;

[0017] (2) The utility model performs a bag-turning operation on the unpacked packaging bag to improve the material discharge efficiency. At the same time, the roller bag-clearing mechanism is used to effectively remove the material remaining in the packaging bag, thereby reducing material waste, lowering production costs, and improving production efficiency.

[0018] (3) The utility model adds a guide frame to improve the stability of the bag turning process, and uses a rotating guide wheel to drive the bag to be transported steadily, thereby improving the smoothness of the unpacking process. The bag blocking component separates the upper and lower halves of the unpacked bag and transports them separately, thus avoiding the bag clogging and jamming.

[0019] (4) The utility model is equipped with a dust collector, which can effectively absorb and filter the dust generated during the process of unpacking, turning over and cleaning bags, improve the workshop working environment and protect the physical and mental health of operators;

[0020] (5) The utility model utilizes a crushing wheel to initially crush the unpacked material, and then utilizes a crushing mechanism at the bottom of the hopper to further crush the material, thereby improving crushing efficiency, facilitating subsequent processing, and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings.

[0022] Figure 1 This is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the shell of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the cutting mechanism and two conveying mechanisms of the utility model;

[0025] Figure 4 For this utility model Figure 3 Another perspective structural diagram;

[0026] Figure 5 This is a schematic diagram of the structure of the beam, guide rod, guide wheel and rotating shaft of the utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the drum bag cleaning mechanism of the utility model;

[0028] Figure 7This is a schematic diagram of the structure of the V-shaped guide plate of the utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the new hopper and crushing mechanism of this utility model;

[0030] In the figure: 1. Frame, 2. Cutting mechanism, 201. Cutting motor, 202. Cutting line, 203. Support wheel, 204. Active cutting wheel, 205. Driven cutting wheel, 3. Upper conveying mechanism, 4. Lower conveying mechanism, 5. Drum bag cleaning mechanism, 501. Drum, 5011. Bag inlet, 5012. Bag outlet, 502. V-shaped guide plate, 503. Drum motor, 504. Drive gear, 505. Ring gear, 506. Convex ring, 507. Support wheel, 508. Pressing wheel, 6. Hopper, 7. Guide cylinder, 8. Guide plate, 801 , cutting groove, 9, limiting wheel, 10, crossbeam, 11, guide rod, 12, roller, 13, guide wheel, 14, bag turning motor, 15, bag blocking assembly, 1501, upper cross bar, 1502, lower cross bar, 1503, support rod, 16, outer shell, 17, dust collector, 1701, air inlet, 1702, exhaust port, 18, support shaft, 19, rolling wheel, 20, discharge port, 21, support plate, 22, protective cover, 23, crushing roller, 24, crushing gear, 25, crushing motor, 26, visual window, 27, inspection port, 28, controller. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the description of the present invention, it should be understood that the terms "middle", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In this utility model, unless otherwise specified or limited, the terms "disposed," "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed or detachable connections, mechanical connections, direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0034] like Figure 1 、 Figure 2 As shown, a bag unpacking machine includes a frame 1, on which a cutting mechanism 2, an upper conveying mechanism 3, a lower conveying mechanism 4, a roller bag cleaning mechanism 5 and a hopper 6 are arranged in sequence from top to bottom. Figure 8 As shown, the hopper is provided with a viewing window 26, which uses a transparent cover to accurately and quickly observe the internal material situation. It is also provided with an inspection port 27 to facilitate internal cleaning and maintenance. The inspection port is connected to the inspection cover by bolts. Figure 3 and Figure 4 As shown, the cutting mechanism includes a cutting motor 201, an upper wheel group, a lower wheel group and a cutting line 202. The lower wheel group includes two supporting wheels 203 respectively located above the two sides of the upper conveying mechanism and rotatably connected to the frame. The cutting line passes around the two supporting wheels and the upper wheel group in sequence to form a closed cutting coil connected end to end. The upper wheel group is connected to the cutting motor, and the cutting motor drives the upper wheel group to rotate. The upper wheel group drives the lower wheel group to rotate synchronously through the cutting line. The cutting line completes the cutting of the packaging bag during the circular rotation along the cutting line. The input end of the lower conveying mechanism is matched with the output end of the upper conveying mechanism. After cutting, the packaging bag falls from the upper conveying mechanism to the lower conveying mechanism to complete the bag turning. Most of the material is discharged from the packaging bag. The output end of the lower conveying mechanism is connected to the bag inlet of the roller bag cleaning mechanism. A guide cylinder 7 is connected between them, and the packaging bag with a small amount of material remaining enters the roller bag cleaning mechanism through the guide cylinder. The roller bag cleaning mechanism includes a roller 501 connected to the frame for rotation, a V-shaped guide plate 502 and a roller driving mechanism for driving the roller to rotate. The V-shaped guide plate is inverted above the roller, and the bag inlet 5011 is provided at one end of the roller, and the other end of the roller is provided with a bag outlet 5012. The inner wall of the roller is provided with spiral blades (not shown in the figure) to form a mixing cage conveying structure. This structure is a mature technology of existing material conveying equipment and will not be described in detail. During the rotation of the roller, the packaging bag can be driven to flip forward for transportation to remove the remaining material, and the packaging bag is discharged from the bag outlet. A protective cover 22 is provided on the outside of the bag outlet, and the lower end of the protective cover is an open structure to facilitate the centralized collection of packaging bags. Figure 7 As shown, in this embodiment, the sides of the V-shaped guide plate bend and extend downward, enclosing the sides of the drum. This prevents material released during bag turning from re-entering the drum. Instead, the material falls onto the top of the V-shaped guide plate and slides into the hopper below. A controller 28 is mounted below the frame. The cutting motor, drum motor, bag turning motor, dust collector, pulverizing motor, and other electrical components of this utility model are all electrically connected to the controller. A PLC controller can be used for automated control.

[0035] like Figures 1 to 4As shown, the upper wheel group includes an active cutting wheel 204 and a driven cutting wheel 205. The active cutting wheel is connected to the cutting motor through a sprocket chain transmission mechanism. The active wheel, the driven cutting wheel and the two supporting wheels are located on the same vertical plane and are perpendicular to the upper conveying mechanism, so that the cutting line forms a quadrilateral closed loop structure. The outer peripheries of the active wheel, the driven wheel and the two supporting wheels are provided with a groove matching the cutting line, and the cutting line is embedded in the groove. A guide assembly is provided above the input end of the upper conveyor mechanism. The guide assembly includes two V-shaped guide plates 8 arranged on either side of the upper conveyor mechanism, forming a bell-shaped structure with a gradually decreasing width along the conveying direction. This structure corrects the conveying position of the packaging bag by the upper conveyor mechanism to ensure cutting quality. The two guide plates are located between the two support wheels, and each guide plate has a cutting groove 801. The cutting line passes through the cutting groove. The lower portion of the cutting line of the cutting coil is located at the bell-shaped structure. When the packaging bag passes through the bell-shaped structure, the cutting is completed. Each support wheel is also provided with a cutting line limiter assembly on the side near the other support wheel. The cutting line limiter assembly includes two limiter wheels 9, which are located on either side of the cutting line and are tangential to the cutting line to ensure the stability of the cutting process. A support plate 21 is provided below the two limiter wheels. Each limiter wheel and support wheel are rotatably mounted on the support plate. A support frame is provided on the support plate. The limiter wheels and support wheels are respectively rotatably connected to the corresponding support frame. A gap is provided between the support plate and the top of the upper conveyor mechanism, and the support plate is detachably connected to the frame. In this embodiment, the connection is bolted.

[0036] like Figure 3 and Figure 4 As shown, in order to improve the stability of the bag turning process, a guide frame is obliquely arranged between the output end of the upper conveying mechanism and the input end of the lower conveying mechanism. In this embodiment, the conveying direction of the upper conveying mechanism is opposite to that of the lower conveying mechanism. The lower end of the guide frame is located below the output end of the upper conveying mechanism and above the input end of the lower conveying mechanism. Figure 5As shown, the guide frame includes a crossbeam 10 and at least two parallel, spaced-apart guide rods 11 connected to the crossbeam and arranged obliquely. The crossbeam is connected to the higher end of each guide rod. The length of the crossbeam is parallel to the width of the upper and lower conveyor mechanisms. The guide frame serves as a transition, transferring the packaging bags to the lower conveyor mechanism. The frame is also rotatably connected to a roller 12 parallel to the crossbeam. The roller is coaxially mounted with a number of guide wheels 13 that matches the number of guide rods. The guide wheels are alternately spaced with the guide rods. One end of the roller is connected to a bag-turning motor 14 that drives its rotation. Operation of the bag-turning motor drives the roller and the multiple guide wheels. The guide wheels provide power to the packaging bags, facilitating their transfer to the lower conveyor mechanism, improving bag-turning efficiency and the efficiency of material discharge. In this embodiment, both the upper and lower conveyor mechanisms utilize belt conveyors with identical structures, including a conveyor belt, a driving roller, and a driven roller. The driving roller and the driven roller are located at each end of the conveyor belt and are rotatably connected to the frame. This structure is conventional and will not be further described here. In order to reduce the manufacturing cost of the equipment, the power of the active rollers of the upper conveying mechanism and the lower conveying mechanism is provided by the bag turning motor, and the bag turning motor adopts a sprocket chain transmission mechanism to drive the active rollers and rollers of the two conveying mechanisms to rotate.

[0037] Combine Figure 3 and Figure 4 As shown, a bag blocking assembly 15 is provided on the frame. The bag blocking assembly spans above the upper conveying mechanism and is located between the cutting mechanism and the output end of the upper conveying mechanism. The bag blocking assembly includes an upper crossbar 1501 and a lower crossbar 1502 arranged in parallel with each other. At least two support rods 1503 are evenly spaced and connected between the upper and lower crossbars. A gap is left between the lower crossbar and the top of the upper conveying mechanism. The cutting mechanism cuts the packaging bag horizontally, dividing it into upper and lower parts. The bag blocking assembly can first block the upper part of the packaging bag. When the lower part of the packaging bag and the packaging bag pass through the bottom of the lower crossbar, the upper part of the packaging bag and part of the material falls onto the upper conveying mechanism and continues to be conveyed. This can improve the material discharge efficiency and reduce the amount of material remaining in the packaging bag.

[0038] like Figure 6 As shown, both ends of the drum are circumferentially provided with raised rings 506. Each raised ring is in transmission engagement with support wheels 507 located on either side. Each support wheel is rotatably connected to the frame. The frame is also rotatably connected to two pressure wheels 508, which are in one-to-one transmission engagement with the two raised rings. The pressure wheels are located on top of the raised rings. The two support wheels at each end of the drum are arranged in a triangular pattern with the pressure wheels to ensure rotational stability. The drum drive mechanism includes a drum motor 503, a drive gear 504, and a ring gear 505. The drum motor is connected to the drive gear, which meshes with the ring gear. The ring gear is located on the outside of one end of the drum along the circumference of the drum. The drum motor provides power to the drive gear, which drives the ring gear and the drum to rotate.

[0039] like Figure 1 and Figure 2 As shown, the outer side of the frame is covered with a shell 16, and a dust collector 17 is provided on one side of its upper end. The air inlet 1701 of the dust collector is connected to the interior of the shell, and an exhaust port 1702 is provided on the top of the dust collector. In this embodiment, the dust collector is a bag-type dust collector. The dust generated during the unpacking process is filtered and processed by the dust collector to eliminate the impact of dust on the workshop environment and personnel health.

[0040] like Figure 4 As shown, a support shaft 18 is rotatably connected to the frame. The support shaft spans above the upper conveying mechanism and is located between the bag blocking assembly and the output end of the upper conveyor belt. At least two crushing wheels 19 are evenly spaced along the axial direction. One end of the support shaft is connected to a drive motor. In this embodiment, the drive motor is the bag turning motor, which is realized through a sprocket chain transmission mechanism. That is, the power of the support shaft is also provided by the bag turning motor. The bag turning motor also provides rotational power for the crushing wheel, guide wheel, upper conveying mechanism, and lower conveying mechanism. The crushing wheel can crush agglomerated materials or larger block materials during rotation to achieve the purpose of preliminary crushing. Figure 8 As shown, a discharge port 20 is provided at the bottom of the hopper, and a crushing mechanism is provided at the discharge port. The crushing mechanism includes a crushing motor 25, two crushing rollers 23 arranged in parallel and rotatably connected to the hopper, and a crushing gear 24 is connected to one end of each crushing roller. The two crushing gears are engaged with each other, and the end of one of the crushing rollers is connected to the crushing motor 25 through a sprocket chain transmission mechanism. The crushing motor drives the two crushing rollers to rotate in opposite directions to crush the material passing between the two.

[0041] The working principle of this utility model is as follows:

[0042] like Figures 1 to 8As shown, when the present invention is used, a manipulator is equipped to transfer the packaging bag containing the material to the input end of the upper conveying mechanism 3, the packaging bag is placed horizontally and conveyed, and the packaging bag is corrected in position under the action of the two guide plates 8. When it moves to the bell mouth, the cutting motor 201 drives the rotating cutting line 202 to horizontally cut the packaging bag into two parts, the upper and lower parts, and the bag blocking component 15 blocks the upper half of the packaging bag. The lower half of the packaging bag carrying the material passes under the bag blocking component 15 (the upper half passes after the lower half passes), and is compacted by the rolling wheel 19. For the purpose of preliminary crushing, when passing through the output end of the upper conveying mechanism 3, the material falls and flips onto the guide frame, and gradually slides to the upper end of the lower conveying mechanism 4. During the flipping process, most of the material leaks out and falls into the hopper 6 below. A small amount of material slides from the guide frame to the lower conveying mechanism 4 under the rotation of the guide wheel 13 along with the unpacked packaging bag, and then enters the interior of the drum 501 through the guide cylinder 7. The drum motor 503 drives the drum 501 to rotate, driving the packaging bag to flip inside it, shaking the remaining material into the hopper 6, and finally the packaging bag is discharged from the bag outlet 5012. The unpacked material is concentrated in the hopper 6 and discharged from the bottom outlet. After being crushed by the crushing mechanism, it enters the next processing step. In addition, the dust generated during the unpacking, bag flipping and bag shaking process is filtered by the dust collector 17 to eliminate the impact of dust on the environment and personnel health.

[0043] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that come within the meaning and range of equivalents of the claims be included in the present invention.

Claims

1. A package unpacking machine, characterized in that: The lifting of the ...

2. A package unpacking machine according to claim 1, characterized in that: A guide assembly is provided above the input end of the upper conveying mechanism. The guide assembly includes two V-shaped guide plates distributed on both sides of the upper conveying mechanism, forming a trumpet-shaped structure with a width gradually decreasing along the conveying direction.

3. A package unpacking machine according to claim 2, characterized in that: The two guide plates are located between the two support wheels, and each guide plate is provided with a cutting groove, and the cutting line passes through the cutting groove. A cutting line limiting assembly is also provided on the side of each support wheel close to the other support wheel, and the cutting line limiting assembly includes two limiting wheels, and the two limiting wheels are located on both sides of the cutting line and are tangent to the cutting line.

4. A package unpacking machine according to claim 1, characterized in that: A guide frame is obliquely arranged between the output end of the upper conveying mechanism and the input end of the lower conveying mechanism, and the lower end of the guide frame is located below the output end of the upper conveying mechanism and above the input end of the lower conveying mechanism. The guide frame includes a crossbeam and at least two parallel guide rods connected to the crossbeam at intervals and obliquely arranged, and the crossbeam is connected to the higher end of each guide rod.

5. A package unpacking machine according to claim 4, characterized in that: The frame is also rotatably connected to a roller parallel to the crossbeam, and the roller is coaxially provided with guide wheels matching the number of guide rods. The guide wheels and the guide rods are alternately spaced, and one end of the roller is connected to a bag turning motor that drives it to rotate.

6. A package unpacking machine according to claim 1, characterized in that: The frame is provided with a bag blocking assembly, which spans above the upper conveying mechanism. The bag blocking assembly includes an upper cross bar and a lower cross bar which are arranged in parallel up and down. At least two support rods are evenly spaced and connected between the upper cross bar and the lower cross bar.

7. The package opening machine according to claim 1, characterized in that: The drum driving mechanism includes a drum motor, a driving gear and a ring gear. The drum motor is connected to the driving gear. The driving gear is meshed with the ring gear. The ring gear is arranged outside one end of the drum along the circumferential direction of the drum.

8. The package opening machine according to claim 1, characterized in that: The outer sides of both ends of the roller are provided with convex rings along the circumferential direction, each of the convex rings is in transmission cooperation with the support wheels provided on both sides thereof, each of the support wheels is rotatably connected to the frame, and the frame is also rotatably connected with two pressure wheels which are respectively in transmission cooperation with the two convex rings in a one-to-one correspondence.

9. The package opening machine according to claim 1, characterized in that: The outer side of the frame is covered with a shell, and a dust collector is provided on one side of the upper end thereof. The air inlet of the dust collector is communicated with the interior of the shell, and an exhaust port is provided on the top of the dust collector.

10. The package opening machine according to claim 1, characterized in that: A support shaft is rotatably connected to the frame, the support shaft spans above the upper conveying mechanism, and at least two crushing wheels are evenly spaced along the axial direction. One end of the support shaft is connected to a drive motor, and a discharge port is provided at the bottom of the hopper, and a crushing mechanism is provided at the discharge port.