High-efficiency environment-friendly bag breaking device

Abstract

The utility model discloses a kind of high-efficiency environmental protection type bag breaking device, including gravity acceleration mechanism, rotary cutting mechanism, extrusion separation structure setting in turn;Gravity acceleration mechanism is the slide way of being set to downward inclination;Rotary cutting mechanism includes rotary blade, rotary blade is set in the bottom of the slide way, for cutting to form notch to liquid medicine bag;The extrusion separation structure includes buffer pair roller type extrusion mechanism and separation transmission screen, buffer pair roller type extrusion mechanism is set in the bottom of slide way, for extruding liquid medicine bag;Separation transmission screen is set below extrusion roller group, for separating liquid medicine bag and liquid.The utility model is through gravity acceleration mechanism, rotary cutting mechanism, extrusion separation structure three structures synergies realizes to soft bag " gravity self-flow-precision cutting-mechanical extrusion " processing, both can efficiently separate bag internal material, can also keep bag body substantially complete to realize recycling, simultaneously, avoid causing environmental pollution without producing plastic debris.

Description

Technical Field

[0001] This utility model relates to the field of solid waste treatment equipment technology, and more specifically, to a high-efficiency and environmentally friendly bag-breaking device. Background Technology

[0002] Currently, liquid soft bags in industries such as medical and chemical are usually crushed using bag crushers. However, traditional bag crushers have many technical defects: (1) a large number of small plastic fragments are generated during the crushing process, which can easily cause environmental pollution and increase subsequent cleaning costs; (2) the liquid residue inside the soft bags to be crushed is usually high, resulting in low liquid material recovery rate and increased recycling costs; (3) excessive damage to the overall structure of the bag to fragments makes it impossible to recycle plastic and other materials, resulting in resource waste.

[0003] Therefore, there is an urgent need for an environmentally friendly bag-breaking device that can reduce plastic debris, improve liquid collection rate, and maintain the relative integrity of the bag.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] The technical problem this invention aims to solve is that traditional bag shredders generate a large amount of debris, have low liquid collection rates, and cause excessive bag breakage that prevents the bags from maintaining their integrity. The goal is to provide a highly efficient and environmentally friendly bag shredding device that uses a gravity acceleration mechanism, a rotary cutting mechanism, and a compression separation structure in synergy to achieve "gravity self-flow - precise cutting - mechanical compression" processing of soft bags. This not only efficiently separates the contents of the bag but also maintains the bag's basic integrity for recycling, achieving a high recycling rate for soft bag materials while preventing the generation of plastic debris and avoiding environmental pollution.

[0006] This utility model is achieved through the following technical solution: This utility model provides a high-efficiency and environmentally friendly bag breaking device, which includes a gravity acceleration mechanism, a rotary cutting mechanism, and a squeezing and separating structure arranged in sequence. The gravity acceleration mechanism is a downwardly inclined slide, and the medicine bag can move downward along the slide under its own gravity. The rotary cutting mechanism includes a rotary blade disposed at the bottom of the slide rail, which is used to cut the medicine bag that has moved to the bottom of the slide rail to form a slit; The extrusion and separation structure includes a buffer roller extrusion mechanism and a separation and conveying screen. The buffer roller extrusion mechanism is located on one side of the bottom of the slide and is used to extrude the cut medicine bag to make the internal liquid flow out. The separating conveying screen is located below the extrusion roller assembly and is used to separate the extruded medicine bag and the liquid.

[0007] This invention utilizes a gravity acceleration mechanism, a rotary cutting mechanism, and a compression separation structure to achieve a "gravity-precision cutting-mechanical compression" process for soft bags. This process efficiently separates the contents of the bag while maintaining the bag's basic integrity for recycling, resulting in a high recycling rate for soft bag materials. At the same time, it does not generate plastic debris, thus avoiding environmental pollution.

[0008] When using this bag-breaking device, the PVC bag containing the medicine is first placed at the feed inlet at the top of the slide. Under its own weight, the bag moves downward along the inclined slide. When it reaches the bottom, the rotating blade cuts a strip-shaped incision on the bag. Then, the bag enters the extrusion and separation structure due to its inertia. Under the extrusion action of the two rollers of the buffer roller extrusion mechanism, the remaining medicine in the bag is squeezed out from the incision. Then, the bag and the squeezed medicine fall onto the separation and conveying screen. The medicine is separated by the screen, and then the bag is transported to the bag recycling bin.

[0009] In one specific embodiment, the inclination angle of the slide is 30-45°, and the slide is equipped with a pulley system along the inclination direction. The surface of the pulleys is covered with a high-polymer wear-resistant coating. This invention utilizes the bag's own weight to achieve downward movement. By setting up the pulley system, the resistance received by the bag on the slide is reduced, thereby increasing the downward speed of the bag. This enables unpowered conveying and acceleration of the bag, allowing it to enter the next process at a certain speed.

[0010] In one specific embodiment, the rotary cutting mechanism further includes an optical sensor disposed on one side of the slide. The optical sensor monitors the sliding position of the medicine bag. The cutting position of the bag is preferably at the bottom third of the bag. Therefore, the installation position of the optical sensor is determined according to the setting position of the rotary blade to ensure that when the bottom third of the bag moves to the rotary blade, the sensing signal can be transmitted to the drive motor of the rotary blade, achieving precise cutting. This invention uses a commonly available optical sensor, which is connected to the drive motor of the rotary blade via a conventional PLC logic controller.

[0011] In one specific embodiment, multiple sets of rotating blades are arranged along the transverse direction of the slide, and multiple vertical cutting edges are arranged side by side along the transverse direction at the bottom of the slide, with the rotating blades positioned below the cutting edges. When the bag moves past the cutting edges of the slide, the rotating blades can cut the bag. By designing the blades in a concealed structure, it is possible to avoid obstructing the downward movement of the bag during the cutting process.

[0012] In one specific embodiment, an adaptive compression spring structure is provided between the rotating shafts of the lower and upper rollers of the buffer roller-type extrusion mechanism. When the medicine bag enters the extrusion roller surface, the upper roller can be raised under the action of the adaptive compression spring structure according to the size of the medicine bag. Some bags have metal plugs. If the relative positions of the buffer roller-type extrusion mechanism remain fixed during the extrusion process, the metal plugs cannot pass through. Therefore, this application uses an adaptive compression spring structure. When the metal plug passes through, the upper roller can automatically rise a certain distance to allow the metal plug to pass smoothly and avoid the plug getting stuck. After the plug passes through, the rollers can automatically return to their original position under the action of the spring and continue to extrude the bag.

[0013] In one specific embodiment, the adaptive compression spring structure includes sliding blocks (8) installed at both ends of the upper roller. The upper roller can rotate relative to the sliding blocks (8). The sliding blocks (8) are slidably installed on the guide shaft (9). Only a spring is sleeved on the guide shaft (9) above the sliding blocks (8). When the metal head passes between the lower roller and the upper roller, the upper roller will drive the sliding blocks (8) to move upward along the guide shaft (9) to compress the spring so that the metal head can pass through. After the metal head passes through, the upper roller is pushed back to its original position by the reaction force of the spring.

[0014] In one specific embodiment, the roller spacing of the buffer roller extrusion mechanism is adjustable from 5 to 10 mm, depending on the required bag thickness. The preload of the adaptive extrusion spring structure is 50-200 N, depending on the size of the plug on the bag.

[0015] In one specific embodiment, the upper roller of the buffer roller extrusion mechanism has a higher hardness than the lower roller, with the upper roller having a Shore 80A hardness and the lower roller having a Shore 60A hardness.

[0016] In one specific embodiment, the upper and lower rollers of the buffer roller extrusion mechanism have multiple guide grooves parallel to the axis distributed along the circumferential direction on their roller surfaces. On the one hand, this allows the metal plug on the bag to pass through, preventing the equipment from getting stuck. On the other hand, the guide grooves form a concave-convex structure on the roller surface, which can also hold the product, squeeze the liquid in the product, and drain the liquid from the belt.

[0017] In one specific embodiment, the separation and conveying screen is inclined upwards and includes a conveying screen with screen holes. A liquid collection tank is provided below the conveying screen to collect the liquid flowing in through the screen. The conveying screen is used to convey the squeezed medicine bag upwards to the bag recovery chamber.

[0018] In one specific embodiment, the aperture of the sieve is 0.5-1 mm.

[0019] In one specific implementation, a safety guard is provided on the outside of the gravity acceleration mechanism, the rotary cutting mechanism, and the extrusion separation structure.

[0020] Compared with the prior art, this utility model has the following advantages and beneficial effects: 1. The present invention provides a high-efficiency and environmentally friendly bag breaking device, which achieves the "gravity self-flow - precise cutting - mechanical extrusion" processing of soft bags through the coordinated structure of gravity acceleration mechanism, rotary cutting mechanism and extrusion separation structure. It can efficiently separate the material inside the bag, while keeping the bag body basically intact for recycling, achieving a high recycling rate of soft bag material, and at the same time, it does not produce plastic debris and avoids environmental pollution. 2. The present invention provides a high-efficiency and environmentally friendly bag breaking device that can use the bag's own weight to slide down. By setting up a pulley system, the resistance received by the bag on the slide can be reduced, thereby increasing the downward speed of the bag. This enables the bag to be transported and accelerated without power, allowing the bag to enter the next process at a certain speed. 3. The present invention provides a highly efficient and environmentally friendly bag-breaking device. By setting an adaptive compression spring structure, when the metal plug passes through, the upper roller can automatically rise a certain distance to allow the metal plug to pass smoothly and avoid the plug getting stuck. After the plug passes through, the roller can automatically reset under the action of the spring and continue to squeeze the bag. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the exemplary embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the bag-breaking device provided in this embodiment of the utility model; Figure 2 A schematic diagram of the separation and transmission screen structure provided in an embodiment of this utility model; Figure 3 A schematic diagram of the adaptive compression spring structure provided in an embodiment of this utility model.

[0023] The attached diagram shows the markings and corresponding component names: 1-Slide rail, 2-Rotating blade, 3-Extrusion roller assembly, 4-Separation and transmission screen, 5-Pulley assembly, 6-Cut blade, 7-Liquid collection tank, 8-Sliding block, 9-Guide shaft. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0025] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, well-known structures are not specifically described in order to avoid obscuring the present invention.

[0026] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing 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 limiting the scope of protection of this utility model.

[0028] Example 1 like Figures 1-3 As shown, this utility model embodiment provides a high-efficiency and environmentally friendly bag-breaking device, including a gravity acceleration mechanism, a rotary cutting mechanism, and a squeezing separation structure arranged in sequence; The gravity acceleration mechanism is a downwardly inclined slide 1, and the medicine bag can move downward along the slide 1 under its own gravity. The rotary cutting mechanism includes a rotary blade 2, which is disposed at the bottom of the slide 1 and is used to cut the medicine bag at the bottom of the slide 1 to form a slit. The extrusion and separation structure includes a buffer roller extrusion mechanism 3 and a separation and conveying screen 4. The buffer roller extrusion mechanism 3 is located on one side of the bottom of the slide 1 and is used to extrude the cut medicine bag to make the internal liquid flow out. The separating conveying screen 4 is located below the extrusion roller group 3 and is used to separate the extruded medicine bag and the liquid.

[0029] This invention utilizes a gravity acceleration mechanism, a rotary cutting mechanism, and a compression separation structure to achieve a "gravity-precision cutting-mechanical compression" process for soft bags. This process efficiently separates the contents of the bag while maintaining the bag's basic integrity for recycling, resulting in a high recycling rate for soft bag materials. At the same time, it does not generate plastic debris, thus avoiding environmental pollution.

[0030] When using this bag-breaking device, the PVC bag containing the medicine is first placed at the feed inlet at the top of the slide. Under its own weight, the bag moves downward along the inclined slide. When it reaches the bottom, the rotating blade cuts a strip-shaped incision on the bag. Then, the bag enters the extrusion and separation structure due to its inertia. Under the extrusion action of the two rollers of the buffer roller extrusion mechanism, the remaining medicine in the bag is squeezed out from the incision. Then, the bag and the squeezed medicine fall onto the separation and conveying screen. The medicine is separated by the screen, and then the bag is transported to the bag recycling bin.

[0031] In one specific embodiment, the inclination angle of the slide 1 is 30-45°, and the slide 1 is provided with a pulley group 5 along the inclination direction. The surface of the pulley group is covered with a polymer wear-resistant coating. This utility model can utilize the weight of the bag to achieve downward movement. By setting up the pulley group, the resistance received by the bag on the slide can be reduced, thereby increasing the downward speed of the bag. This enables the bag to be transported and accelerated without power, allowing the bag to enter the next process at a certain speed.

[0032] In one specific embodiment, the rotary cutting mechanism further includes an optical sensor disposed on one side of the slide. The optical sensor monitors the sliding position of the medicine bag. The cutting position of the bag is preferably at the bottom third of the bag. Therefore, the installation position of the optical sensor is determined according to the setting position of the rotary blade to ensure that when the bottom third of the bag moves to the rotary blade, the sensing signal can be transmitted to the drive motor of the rotary blade, achieving precise cutting. This invention uses a commonly available optical sensor, which is connected to the drive motor of the rotary blade via a conventional PLC logic controller.

[0033] In one specific embodiment, multiple sets of rotating blades 2 are arranged along the transverse direction of the slide 1, and multiple vertical cutting edges 6 are arranged side by side along the transverse direction at the bottom of the slide 1, with the rotating blades 2 positioned below the cutting edges 6. When the bag moves past the cutting edges of the slide, the rotating blades can cut the bag. By designing the blades in a concealed structure, it is possible to avoid obstructing the downward movement of the bag during the cutting process.

[0034] In one specific embodiment, an adaptive compression spring structure is provided between the rotating shafts of the lower and upper rollers of the buffer roller extrusion mechanism 3. When the medicine bag enters the extrusion roller surface, the upper roller can be raised according to the size of the medicine bag under the action of the adaptive compression spring structure. Some bags have metal plugs. If the relative positions of the buffer roller extrusion mechanism are kept fixed during the extrusion process, the metal plugs cannot pass through. Therefore, by setting an adaptive compression spring structure, when the metal plug passes through, the upper roller can automatically rise a certain distance to allow the metal plug to pass smoothly and avoid the plug getting stuck. After the plug passes through, the roller can automatically return to its original position under the action of the spring and continue to extrude the bag.

[0035] In one specific embodiment, the adaptive compression spring structure includes sliding blocks 8 installed at both ends of the upper roller. The upper roller can rotate relative to the sliding blocks 8. The sliding blocks 8 are slidably installed on the guide shaft 9. Only a spring is sleeved on the guide shaft 9 above the sliding blocks 8. When the metal head passes between the lower roller and the upper roller, the upper roller will drive the sliding blocks 8 to move upward along the guide shaft 9 to compress the spring so that the metal head can pass through. After the metal head passes through, the upper roller is pushed back to its original position by the reaction force of the spring.

[0036] In one specific embodiment, the distance between the three rollers of the buffer roller extrusion mechanism is adjustable from 5 to 10 mm, depending on the thickness of the bag to be extruded. The preload of the adaptive extrusion spring structure is 50-200 N, depending on the size of the plug on the bag.

[0037] In one specific embodiment, the upper roller of the buffer roller extrusion mechanism 3 has a higher hardness than the lower roller. The upper roller has a Shore 80A hardness, and the lower roller has a Shore 60A hardness.

[0038] In a specific embodiment, the upper and lower rollers of the buffer roller extrusion mechanism 3 have multiple guide grooves parallel to the axis distributed along the circumferential direction on their roller surfaces. On the one hand, this allows the metal plug on the bag to pass through, preventing the equipment from getting stuck. On the other hand, the guide grooves form a concave-convex structure on the roller surface, which can also hold the product, squeeze the liquid in the product, and drain the liquid from the belt.

[0039] In one specific embodiment, the separation and transmission screen 4 is inclined upwards. The separation and transmission screen 4 includes a transmission screen with screen holes. A liquid collection tank 7 is provided below the transmission screen for collecting the liquid flowing in through the screen. The transmission screen is used to transport the squeezed medicine bag upwards to the bag recovery chamber.

[0040] In one specific embodiment, the aperture of the sieve is 0.5-1 mm.

[0041] In one specific implementation, a safety guard is provided on the outside of the gravity acceleration mechanism, the rotary cutting mechanism, and the extrusion separation structure. The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A high-efficiency and environmentally friendly bag-breaking device, characterized in that, It includes a gravity acceleration mechanism, a rotary cutting mechanism, and an extrusion separation structure arranged in sequence; The gravity acceleration mechanism is a downwardly inclined slide (1), and the medicine bag can move downward along the slide (1) under its own gravity; The rotary cutting mechanism includes a rotary blade (2), which is disposed at the bottom of the slide (1) and is used to cut the medicine bag at the bottom of the slide (1) to form a cut. The extrusion separation structure includes a buffer roller extrusion mechanism (3) and a separation conveyor screen (4). The buffer roller extrusion mechanism (3) is located on one side of the bottom of the slide (1) and is used to extrude the cut medicine bag to make the internal liquid flow out. The separation and transmission screen (4) is set below the buffer roller extrusion mechanism (3) and is used to separate the extruded medicine bag and liquid.

2. The high-efficiency and environmentally friendly bag-breaking device according to claim 1, characterized in that, The inclination angle of the slide (1) is 30-45°, and the slide (1) is provided with a pulley group (5) along the inclination direction.

3. The high-efficiency and environmentally friendly bag-breaking device according to claim 1, characterized in that, The rotary cutting mechanism also includes an optical sensor disposed on one side of the slide, which is used to monitor the sliding position of the medicine bag.

4. The high-efficiency and environmentally friendly bag-breaking device according to claim 1, characterized in that, The rotating blade (2) is arranged in multiple sets along the transverse direction of the slide (1), and multiple vertical cutting edges (6) are arranged side by side along the transverse direction at the bottom of the slide (1). The rotating blade (2) is located below the cutting edges (6).

5. The high-efficiency and environmentally friendly bag-breaking device according to claim 1, characterized in that, An adaptive compression spring structure is provided between the lower roller and the upper roller of the buffer roller extrusion mechanism (3). When the medicine bag enters the extrusion roller surface, the upper roller can be lifted according to the size of the medicine bag under the action of the adaptive compression spring structure.

6. The high-efficiency and environmentally friendly bag-breaking device according to claim 5, characterized in that, The distance between the roller surfaces of the buffer roller extrusion mechanism (3) is 5-10mm, and the preload of the adaptive extrusion spring structure is 50-200N.

7. The high-efficiency and environmentally friendly bag-breaking device according to claim 1, characterized in that, The upper roller of the buffer roller extrusion mechanism (3) has a higher hardness than the lower roller.

8. The high-efficiency and environmentally friendly bag-breaking device according to claim 1, characterized in that, The upper and lower rollers of the buffer roller extrusion mechanism (3) have irregular shapes, with a 3-5mm concave area in the middle of the roller surface.

9. The high-efficiency and environmentally friendly bag-breaking device according to claim 1, characterized in that, The separation and transmission screen (4) is inclined upwards. The separation and transmission screen (4) includes a transmission screen with screen holes. A liquid collection tank (7) is provided below the transmission screen. The transmission screen is used to transmit the squeezed medicine bag to the bag recovery chamber.

10. The high-efficiency and environmentally friendly bag-breaking device according to claim 9, characterized in that, The sieve aperture is 0.5-1mm.

Images