Rough cutting bag breaking device and automatic bag opening and discharging equipment thereof

Abstract

The utility model relates to a rough cutting bag breaking device and automatic bag opening and unloading equipment thereof, the rough cutting bag breaking device is installed on a material screening cylinder of the automatic bag opening and unloading equipment, the rough cutting bag breaking device comprises a protective partition plate, rough cutting mechanisms and a power supply guide rail, and at least one group of rough cutting mechanisms is arranged on the outer wall of the material screening cylinder; the power supply guide rail is electrically connected with the rough cutting mechanism; the protective partition plates are arranged between the adjacent rough cutting mechanisms at intervals. And a cutting tool of the rough cutting mechanism extends to a working cavity in the screening barrel. The automatic bag opening and discharging equipment comprises a supporting platform, a material screening barrel, a driving device and the rough cutting bag breaking device, the material screening barrel is divided into a coarse material area and a fine material area, a feeding port and a discharging port are formed in the two ends of the material screening barrel respectively, and the rough cutting bag breaking device is arranged in the coarse material area of the material screening barrel to conduct barrel body blade cutting on bags. The automatic bag opening and discharging equipment is used for carrying out grading cutting on the bags, and the bag opening efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the field of waste treatment technology, and in particular to a waste bag coarse cutting and breaking device and its automatic bag unloading equipment. Background Technology

[0002] In modern municipal solid waste treatment processes, the efficient sorting of bagged waste has always been a pressing technical challenge. Currently, the "bag-breaking machines" commonly found on the market actually employ traditional crushing technology, which indiscriminately crushes the entire bag of waste (including the outer packaging and internal materials). This extensive processing method has significant negative impacts: on the one hand, various recyclable materials inside the bag (such as plastic bottles, paper products, and metal containers) are forcibly crushed, resulting in a substantial reduction in material value; on the other hand, the mixed and crushed materials, due to their small size and mixed composition, make subsequent sorting processes difficult to implement effectively, severely affecting resource recovery rates and economic benefits.

[0003] Due to a lack of truly professional bag-breaking equipment, most waste sorting plants in China still rely on traditional manual bag-breaking operations. In this method, workers need to use knives to cut open each garbage bag individually, which is not only inefficient and poses safety hazards, but also results in high labor costs that restrict the company's operational efficiency. Industry research data shows that manual bag-breaking accounts for more than 40% of the total labor costs of the sorting line, becoming one of the main bottlenecks restricting the development of the waste resource recovery industry.

[0004] To address this industry pain point, there is an urgent need to develop an intelligent, specialized bag-breaking device. This device should possess the following core functional characteristics: (1) the ability to accurately identify and cut open plastic bags while maintaining the integrity of the contents; (2) mechanical processing efficiency exceeding manual processing efficiency; (3) adaptability to the characteristics of pre-screened bagged household waste; and (4) seamless integration with existing sorting production lines. The successful development of such equipment will fundamentally change the current operational model of the waste sorting industry, driving the entire industry towards automation and intelligence. Utility Model Content

[0005] Existing technologies suffer from problems such as the inability to grade and cut bags, low bag-opening efficiency, and significant material residue. Therefore, to address these issues, this invention provides a coarse-cutting bag-breaking device and its automatic bag-opening and unloading equipment.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A coarse-cutting bag-breaking device is installed on the screening cylinder of an automatic bag-unloading equipment. The coarse-cutting bag-breaking device includes a protective partition, a coarse-cutting mechanism, and a power supply rail. At least one set of coarse-cutting mechanisms is provided on the outer wall of the screening cylinder. The power supply rail is electrically connected to the coarse-cutting mechanism. The protective partition is spaced between adjacent coarse-cutting mechanisms. The cutting blade of the coarse-cutting mechanism extends into the working cavity inside the screening cylinder.

[0008] The beneficial effects of the above solution are: the cutting disc of the coarse cutting mechanism extends into the inner wall of the screen cylinder, the inner side plate is set between the cutting disc and the cutting disc of the coarse cutting mechanism, and the cutting disc rotates synchronously when the screen cylinder rotates. The cutting disc and the inner side plate work together to quickly cut the irregular surface of the soft plastic bag, thus effectively improving the bag opening efficiency and cutting effect.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the roughing mechanism includes a drive motor and a multi-blade cutting disc mounted on the output shaft of the drive motor. The drive motor is electrically connected to the power supply guide rail. The cutting disc has a negative angle cutting edge and a through hole formed in the side wall of the cutting disc.

[0011] Furthermore, the coarse cutting mechanism also includes a pressure reducer, which is built into the coarse cutting mechanism to make the cutting disc elastic and reduce the hard force of the material on the cutting disc during the operation of the coarse cutting mechanism.

[0012] The beneficial effects of adopting the above-mentioned further solution are: the coarse cutting and bag breaking device is equipped with a pressure reducer, which makes the blade teeth fit the bag surface, adapts to the irregular surface of the soft plastic bag material, reduces uneven wear of the blade edge, and improves cutting efficiency and the service life of the cutting disc.

[0013] An automatic bag unloading device includes a support platform, a screening cylinder, a power unit, and a coarse cutting and bag breaking device. The screening cylinder is set on the support platform and is driven to rotate by the drive unit. The screening cylinder is divided into a coarse material zone and a fine material zone, with an inlet and an outlet at its two ends, respectively. The coarse cutting and bag breaking device is set in the coarse material zone of the screening cylinder to cut the bag with the cylinder blades.

[0014] The advantages of adopting the above solution are: the automatic bag unloading equipment has a compact overall structure, is easy to operate, requires no additional dustproof devices, and reduces energy consumption and production costs.

[0015] Based on the above technical solution, the present invention can be further improved as follows.

[0016] Furthermore, it also includes a fine-cutting and bag-breaking device, which includes several fine-cutting mechanisms distributed circumferentially along the screen cylinder. Each fine-cutting mechanism includes a drive motor and a fine-cutting blade with a front angle of 5° to 25°. The surface of the fine-cutting blade is provided with a flow guiding structure; a partition plate is set between adjacent fine-cutting mechanisms; and an arc-shaped protective ring surrounds the working area of ​​the fine-cutting blade.

[0017] Furthermore, the partition plates are arranged continuously or in segments and can be selectively set in the coarse processing area, the fine processing area, or a combination of both. The coarse processing area of ​​the screen cylinder is provided with 8 cm to 12 cm screen holes, and the fine processing area is provided with 2 cm to 7 cm screen holes. A material collection device is set below each screening area.

[0018] Furthermore, the power unit includes: a drive motor with a variable frequency speed controller; a reduction gear transmission assembly connecting the drive motor and the screen cylinder, wherein the reduction gear transmission assembly is a gear transmission, chain transmission or belt transmission structure; the screen cylinder is installed at an inclination angle of 3° to 25°, and the height of the feed end is higher than that of the discharge end.

[0019] Furthermore, it also includes a primary cutting and bag breaking device, which includes: a feed guide plate with side baffles; a multi-axis cutting mechanism installed below the feed guide plate, with blades on each cutting axis arranged in an alternating pattern; and a vibration damping mechanism connecting the feed guide plate and the equipment support, the vibration damping mechanism including an eccentric vibrator and an elastic support assembly.

[0020] The beneficial effect of adopting the above-mentioned further solution is that the initial cutting and bag breaking device can replace manual cutting and screening work, effectively improving production efficiency.

[0021] Furthermore, it also includes a metal separation mechanism, which comprises: a rotatable magnetic suction component and a flexible conveyor belt sleeved outside the magnetic suction component; wherein the magnetic suction component and the flexible conveyor belt form an adjustable-gap linkage mechanism.

[0022] Furthermore, it also includes a metal separation mechanism, which comprises: a rotatable magnetic suction assembly and a metal stripper disposed at the end of the magnetic suction assembly's movement trajectory; wherein the metal stripper strips the metal material on the magnetic suction assembly.

[0023] The beneficial effect of adopting the above-mentioned further solution is that the metal separation mechanism is used to adsorb the metal material initially divided by the initial cutting and bag breaking device, so as to avoid the metal material entering the screen cylinder and damaging the blade. If the metal material enters the screen cylinder, it will also damage the screen cylinder, and in severe cases, the entire screen cylinder will be scrapped.

[0024] The beneficial effects of this utility model are: by setting up a primary bag-breaking device, a coarse bag-breaking device, and a fine bag-breaking device, this utility model provides a graded cutting system for bags (such as roller cutting → cylindrical blade cutting → intermediate blade supplementary cutting), which improves the bag-opening efficiency, reduces the situation of bags remaining inside the packaging bag, and solves the problem that the existing technology cannot fully disassemble the bags.

[0025] The grading and cutting system of this utility model automatic bag opening and unloading equipment includes a primary bag-breaking device that can perform preliminary cutting on the bags entering the screening cylinder; a coarse bag-breaking device that can further cut the coarse material; and a fine bag-breaking device that can supplement the cutting of the fine material. The grading and cutting system can be used to cut bags of various specifications in a reasonable way, thus improving the bag opening and unloading efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of an automatic bag-unloading and material-removing device;

[0027] Figure 2 This is a cross-sectional view of an automatic bag-unloading and material-removing device;

[0028] Figure 3 This is a schematic diagram of the initial bag-breaking device;

[0029] Figure 4 This is a schematic diagram of the metal separation mechanism;

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 100. Coarse cutting and bag breaking device; 11. Protective partition; 12. Coarse cutting mechanism; 13. Power supply guide rail; 121. Drive motor; 122. Cutting blade.

[0032] 200. Automatic bag unloading and material unloading equipment; 21. Support platform; 22. Screening cylinder; 23. Power unit; 221. Coarse processing area; 222. Fine processing area; 24. Collection device.

[0033] 300. Fine cutting and bag breaking device; 31. Fine cutting mechanism; 311. Drive motor; 312. Fine cutting blade; 313. Separating plate; 314. Arc-shaped protective ring.

[0034] 400. Initial cutting and bag breaking device; 41. Feeding guide plate; 42. Cutting mechanism; 43. Vibration damping mechanism; 431. Eccentric vibrator; 432. Elastic support assembly; 44. Baffle.

[0035] 500. Metal separation mechanism; 51. Magnetic suction assembly; 52. Flexible conveyor belt. Detailed Implementation

[0036] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0037] Examples (such as) Figures 1 to 4 (as shown)

[0038] A coarse-cutting and bag-breaking device 100 is installed on the screening cylinder 22 of an automatic bag-unloading device 200. The coarse-cutting and bag-breaking device 100 includes a protective partition 11, a coarse-cutting mechanism 12, and a power supply guide rail 13. At least one set of coarse-cutting mechanisms 12 is provided on the outer wall of the screening cylinder 22. The power supply guide rail 13 is electrically connected to the coarse-cutting mechanism 12. The protective partition 11 is spaced between adjacent coarse-cutting mechanisms 12. The cutting blade of the coarse-cutting mechanism 12 extends into the working cavity inside the screening cylinder 22.

[0039] The beneficial effects of the above scheme are: the cutting disc of the coarse cutting mechanism 12 extends into the inner wall of the screen cylinder 22, the inner side plate is set between the cutting disc and the inner side plate of the coarse cutting mechanism 12, and the screen cylinder 22 rotates synchronously to drive the cutting disc to rotate. The cutting disc and the inner side plate work together to quickly cut the irregular surface of the soft plastic bag, thus effectively improving the bag opening efficiency and cutting effect.

[0040] Based on the above technical solution, the present invention can be further improved as follows.

[0041] Furthermore, the roughing mechanism 12 includes a drive motor 121 and a multi-blade cutting disc 122 mounted on the output shaft of the drive motor. The drive motor 121 is electrically connected to the power supply rail 13. The cutting disc 122 has a negative angle cutting edge and a through hole formed on the side wall of the cutting disc.

[0042] Furthermore, the coarse cutting mechanism 12 also includes a pressure reducer (not shown in the figure), which is built into the coarse cutting mechanism 12 to make the cutting disc elastic and reduce the hard force of the material on the cutting disc during the operation of the coarse cutting mechanism 12.

[0043] The beneficial effects of adopting the above-mentioned further solution are: the coarse cutting and bag breaking device 100 is equipped with a pressure reducer (not shown in the figure), which makes the blade teeth fit the bag surface, adapts to the irregular surface of the soft plastic bag material, reduces uneven wear of the blade edge, and improves cutting efficiency and the service life of the cutting disc.

[0044] An automatic bag-opening and unloading device 200 includes a support platform 21, a screening cylinder 22, a power unit 23, and a coarse-cutting bag-breaking device 100. The screening cylinder 22 is mounted on the support platform 21 and is driven to rotate by the drive unit. The screening cylinder 22 is divided into a coarse processing zone 221 and a fine processing zone 222, with an inlet and an outlet at its two ends, respectively. The coarse-cutting bag-breaking device 100 is located in the coarse processing zone 221 of the screening cylinder 22 and cuts the bags with cylindrical blades.

[0045] The beneficial effects of adopting the above solution are: the automatic bag unloading and material unloading equipment 200 has a compact overall structure, is easy to operate, requires no additional dustproof devices, and reduces energy consumption and production costs.

[0046] Based on the above technical solution, the present invention can be further improved as follows.

[0047] Furthermore, it also includes a fine-cutting and bag-breaking device 300, which includes a plurality of fine-cutting mechanisms 31 distributed circumferentially along the screen cylinder 22. Each fine-cutting mechanism 31 includes a drive motor 311 and a fine-cutting blade 312 with a front angle of 5° to 25°. The surface of the fine-cutting blade is provided with a flow guiding structure; a partition plate 313 is provided between adjacent fine-cutting mechanisms 31; and an arc-shaped protective ring 314 surrounds the working area of ​​the fine-cutting blade.

[0048] Furthermore, the partition plate 313 is arranged in a continuous or segmented manner and can be selectively set in the rough processing area, the fine processing area, or a combination of both. The rough processing area 221 of the screen cylinder 22 is provided with 8 cm to 12 cm screen holes, and the fine processing area 222 is provided with 2 cm to 7 cm screen holes. A material collection device is set below each screen area.

[0049] Furthermore, the power unit 23 includes: a drive motor with a variable frequency speed controller; a reduction transmission assembly connecting the drive motor and the screen cylinder 22, wherein the reduction transmission assembly is a gear transmission, chain transmission or belt transmission structure; the screen cylinder 22 is installed at an inclination angle of 3° to 25°, and the height of the feed end is higher than that of the discharge end.

[0050] Furthermore, it also includes a primary bag-breaking device 400, which includes: a feed guide plate 41 with side baffles 44; a multi-axis cutting mechanism 42 installed below the feed guide plate 41, with blades on each cutting axis arranged in an alternating pattern; and a vibration damping mechanism 43 connecting the feed guide plate 41 and the equipment support, which includes an eccentric vibrator 431 and an elastic support assembly 432.

[0051] The beneficial effect of adopting the above-mentioned further solution is that the initial cutting and bag breaking device 400 can replace manual cutting and screening work, effectively improving production efficiency.

[0052] Furthermore, it also includes a metal separation mechanism 500, which includes: a rotatable magnetic suction component 51 and a flexible conveyor belt 52 sleeved outside the magnetic suction component; wherein the magnetic suction component and the flexible conveyor belt form an adjustable spacing linkage mechanism.

[0053] Furthermore, it also includes a metal separation mechanism 500, which includes: a rotatable magnetic suction assembly 51 and a metal stripper (not shown in the figure) disposed at the end of the movement trajectory of the magnetic suction assembly; wherein, the metal stripper strips the metal material on the magnetic suction assembly.

[0054] The beneficial effect of adopting the above-mentioned further solution is that the metal separation mechanism 500 is used to adsorb the metal material initially divided by the initial cutting and breaking device 400, so as to avoid the metal material entering the screen cylinder 22 and damaging the blade. If the metal material enters the screen cylinder 22, it will also damage the screen cylinder 22, and in severe cases, the entire screen cylinder 22 will be scrapped.

[0055] The beneficial effects of this utility model are: by setting up a primary bag-breaking device, a coarse bag-breaking device, and a fine bag-breaking device, this utility model provides a graded cutting system for bags (such as roller cutting → cylindrical blade cutting → intermediate blade supplementary cutting), which improves the bag-opening efficiency, reduces the situation of bags remaining inside the packaging bag, and solves the problem that the existing technology cannot fully disassemble the bags.

[0056] The grading and cutting system of this utility model automatic bag opening and unloading equipment includes a primary bag-breaking device that can perform preliminary cutting on the bags entering the screening cylinder; a coarse bag-breaking device that can further cut the coarse material; and a fine bag-breaking device that can supplement the cutting of the fine material. The grading and cutting system can be used to cut bags of various specifications in a reasonable way, thus improving the bag opening and unloading efficiency.

[0057] The automatic bag-unloading equipment has a compact overall structure, is easy to operate, requires no additional dustproof devices, and reduces energy consumption and production costs.

[0058] In the description of this utility model, it should be understood that the terms "parallel", "rotation", "radial", "circumferential", "vertical", "up", "down", "front", "rear", "axial", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0059] Furthermore, the terms "first," "second," "third," "fourth," "fifth," "sixth," and "seventh" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," "third," "fourth," "fifth," "sixth," or "seventh" may explicitly or implicitly include at least one of those features. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," and "hinged" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0061] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0063] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A coarse-cutting and bag-breaking device, wherein the coarse-cutting and bag-breaking device is installed on the screening cylinder of an automatic bag-unloading and unloading equipment, characterized in that: The coarse cutting and bag breaking device includes a protective partition, a coarse cutting mechanism, and a power supply rail. At least one set of coarse cutting mechanisms is provided on the outer wall of the screen cylinder. The power supply rail is electrically connected to the coarse cutting mechanism. The protective partition is spaced between adjacent coarse cutting mechanisms. The cutting blade of the coarse cutting mechanism extends into the working cavity inside the screen cylinder.

2. The coarse-cutting and bag-breaking device according to claim 1, characterized in that: The roughing mechanism includes a drive motor and a multi-blade cutting disc mounted on the output shaft of the drive motor. The drive motor is electrically connected to the power supply rail. The cutting disc has a negative angle cutting edge and a through hole in the side wall of the cutting disc.

3. The coarse-cutting and bag-breaking device according to claim 1, characterized in that: The coarse cutting mechanism also includes a pressure reducer, which is built into the coarse cutting mechanism to make the cutting disc elastic and reduce the hard force of the material on the cutting disc during the operation of the coarse cutting mechanism.

4. An automatic bag-opening and unloading device, characterized in that, The device includes a support platform, a screening cylinder, a power unit, and a coarse cutting and bag breaking device as described in any one of claims 1 to 3. The screening cylinder is disposed on the support platform and is driven to rotate by the drive unit. The screening cylinder is divided into a coarse material zone and a fine material zone, with an inlet and an outlet at its two ends, respectively. The coarse cutting and bag breaking device is disposed in the coarse material zone of the screening cylinder to cut large bags with cylinder blades.

5. An automatic bag-opening and unloading device according to claim 4, characterized in that: It also includes a fine-cutting and bag-breaking device, which includes several fine-cutting mechanisms distributed around the circumference of the screen cylinder. Each fine-cutting mechanism includes a drive motor and a fine-cutting blade with a front angle of 5° to 25°. The surface of the fine-cutting blade is provided with a flow guiding structure; a partition plate is provided between adjacent fine-cutting mechanisms; and an arc-shaped protective ring surrounds the working area of ​​the fine-cutting blade.

6. The automatic bag-opening and unloading equipment according to claim 5, characterized in that: The partition plates are arranged continuously or in segments and can be selectively set in the coarse processing area, fine processing area, or a combination of both. The coarse processing area of ​​the screen cylinder has 8 cm to 12 cm screen holes, and the fine processing area has 2 cm to 7 cm screen holes. A material collection device is set below each screening area.

7. An automatic bag-opening and unloading device according to claim 4, characterized in that: The power unit includes: a drive motor with a variable frequency speed controller; a reduction gear transmission assembly connecting the drive motor and the screen cylinder, wherein the reduction gear transmission assembly is a gear transmission, chain transmission or belt transmission structure; the screen cylinder is installed at an inclination angle of 3° to 25°, and the height of the feed end is higher than that of the discharge end.

8. An automatic bag-opening and unloading device according to claim 4, characterized in that: It also includes a primary cutting and bag breaking device, which includes: a feed guide plate with side baffles; a multi-axis cutting mechanism installed below the feed guide plate, with blades on each cutting axis arranged in an alternating pattern; and a vibration damping mechanism connecting the feed guide plate and the equipment support, which includes an eccentric vibrator and an elastic support assembly.

9. An automatic bag-opening and unloading device according to claim 8, characterized in that: It also includes a metal separation mechanism, which comprises: a rotatable magnetic suction component and a flexible conveyor belt sleeved outside the magnetic suction component; wherein the magnetic suction component and the flexible conveyor belt form an adjustable-gap linkage mechanism.

10. An automatic bag-opening and unloading device according to claim 8, characterized in that: It also includes a metal separation mechanism, which comprises: a rotatable magnetic suction assembly and a metal stripper disposed at the end of the magnetic suction assembly's movement trajectory; wherein the metal stripper strips the metal material from the magnetic suction assembly.

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