Plastic bag recycling equipment

Abstract

The invention belongs to the technical field of plastic bag recycling, and particularly relates to plastic bag recycling equipment which comprises a machine body, a first cutting mechanism and a separating mechanism which are mounted in the machine body, and further comprises a second conical plate rotationally mounted on the machine body and mounted above the first conical plate; the partition plates are mounted on the second conical plate in an annular array mode, and every two adjacent partition plates form a channel; the air inlet pipe is rotationally mounted on the second conical plate and is fixedly connected with the machine body; the first air outlet holes are formed in the lower surface of the second conical plate and communicate with the air inlet pipe; a second conical plate is arranged, air is blown into an air inlet pipe, the air flows out of a first air outlet hole and is diffused downwards in an umbrella shape, and for some plastic bags wrapping paper products and the like, airflow can give downward pressure to the plastic bags, so that the probability that the first cutting knife assembly cuts the plastic bags wrapping the garbage is increased.

Description

Technical Field

[0001] The invention belongs to the field of plastic bag recycling, in particular to a plastic bag recycling device. Background Art

[0002] At present, a lot of garbage thrown into the trash can is wrapped in plastic bags. Since plastic bags are difficult to degrade, plastic bag recycling equipment is needed to deal with the plastic bags that are screened out to wrap the garbage. First, the plastic bags are broken to allow the garbage to flow out of the plastic bags, and then the plastic bags are recycled and reused to achieve the purpose of turning waste into treasure and reduce pollution to the environment.

[0003] A patent application with publication number CN114505980B discloses a plastic bag cleaning and recycling robot and a plastic bag separation method, including an outer cover, a transmission shaft installed on the outer cover; a centrifugal separation mechanism installed on the transmission shaft; a first bag breaking mechanism and a second bag breaking mechanism installed on the centrifugal separation mechanism; a dividing hopper installed on the transmission shaft; plastic bags are broken by the first bag breaking mechanism and the second bag breaking mechanism, and plastic bags and garbage are separated by the centrifugal separation mechanism.

[0004] The above scheme is achieved by throwing the plastic bag wrapped in garbage into the center of the first bag breaking mechanism, on which spikes are arranged, and by rotating the first bag breaking mechanism, the plastic bag wrapped in garbage is driven to rotate synchronously. Under the action of centrifugal force, the plastic bag wrapped in garbage moves toward the edge of the first bag breaking mechanism. During the movement, the plastic bag wrapped in garbage contacts the spikes to achieve the bag breaking action. However, for some plastic bags that contain paper products such as paper towels, the overall weight of the paper products and the plastic bags is relatively light, and the plastic bags are easy to float, so that they cannot contact the spikes well, and there is a possibility that the spikes cannot destroy the plastic bags.

[0005] To this end, the present invention provides a plastic bag recycling device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the plastic bag recycling equipment described in the present invention comprises a machine body and a No. 1 cutting mechanism and a separation mechanism installed in the machine body, the No. 1 cutting mechanism comprises a No. 1 conical plate and a plurality of No. 1 cutting knife assemblies for cutting plastic bags, the No. 1 cutting knife assemblies are arranged in a circular array on the No. 1 conical plate, the separation mechanism is used to separate the plastic bags and the garbage in the plastic bags, and also comprises: a No. 2 conical plate rotatably installed on the machine body, the No. 2 conical plate is installed above the No. 1 conical plate; a plurality of circular arrays are installed on the No. 2 conical plate. A partition on the plate, the partition is fixedly connected to the No. 1 conical plate, two adjacent partitions form a channel, a number of No. 1 cutting knife assemblies are evenly distributed on the channels, the partition is arranged in parallel with the No. 1 cutting knife assembly, and is located on one side of the No. 1 cutting knife assembly; an air inlet pipe rotatably installed on the No. 2 conical plate, the air inlet pipe is fixedly connected to the body; a number of No. 1 air outlets are opened on the lower surface of the No. 2 conical plate, the No. 1 air outlets are connected to the air inlet pipes, the No. 1 air outlets are inclined, and the gas diffuses downward in an umbrella shape after going out of the No. 1 air outlet.

[0008] Preferably, the No. 1 cutting mechanism also includes a plurality of mounting grooves provided on the No. 1 conical plate, and the No. 1 cutting knife assembly includes a round rod installed on the mounting groove, a plurality of cutting knives are fixedly mounted on the round rod, and the round rod is rotatably mounted on the No. 1 conical plate.

[0009] Preferably, it also includes a No. 2 cutting mechanism installed in the body, the No. 2 cutting mechanism includes: an inverted cone plate fixedly installed in the body, the inverted cone plate is located below the No. 1 cone plate, and the diameter of the inverted cone plate is larger than the diameter of the No. 1 cone plate; a number of No. 2 cutting knife assemblies installed on the inverted cone plate, the structure of the No. 2 cutting knife assemblies is consistent with the structure of the No. 1 cutting knife assemblies; and a feed port opened in the center of the inverted cone plate.

[0010] Preferably, the separation mechanism includes: a main shaft rotatably installed in the body, the main shaft is provided with spiral blades, and the rotating main shaft is used to stir the plastic bags and garbage coming out of the discharge port; a discharge pipe fixedly installed at the lower end of the body; and an adsorption structure installed at the upper end of the discharge pipe and below the inverted cone plate.

[0011] Preferably, the upper end of the main shaft is higher than the feed opening of the inverted cone plate, a connecting plate is fixedly installed above the inverted cone plate, and a circle of annular blades is provided on the lower surface of the connecting plate.

[0012] Preferably, the adsorption structure includes a plurality of long plates, each of which is provided with adsorption holes. The plurality of long plates form a closed polygonal column, the spiral blades are located in the center of the polygonal column, and a recovery space is formed between the periphery of the polygonal column and the inner wall of the body, and the long plates are rotatably connected to the inverted cone plate and the discharge pipe.

[0013] Preferably, the separation mechanism also includes: an annular plate rotatably mounted on the body, a No. 1 air intake hole being provided on the upper surface of the annular plate, and the annular plate being located at the periphery and below the adsorption structure; an air outlet pipe rotatably mounted on the annular plate, the air outlet pipe being connected to the No. 1 air intake hole of the annular plate, and the air outlet pipe being fixedly connected to the body; two inclined plates fixedly mounted on the body, the two inclined plates being placed up and down, and the body being provided with a discharge port on a horizontal plane corresponding to the two inclined plates; a shield plate slidably mounted on the body, the shield plate being located above the inclined plate which is located a little higher; a connecting plate slidably mounted on the annular plate, the connecting plate being located between the inclined plate and the annular plate.

[0014] Preferably, a plurality of vibrators are fixedly installed inside the annular plate.

[0015] Preferably, the separation mechanism further comprises a second air outlet hole provided on the upper surface of the connecting plate.

[0016] Preferably, the first conical plate adopts a hollow structure, the main shaft adopts a hollow structure, a plurality of connecting pipes are fixedly installed on the main shaft, and the main shaft is connected with the first conical plate through the connecting pipes.

[0017] The beneficial effects of the present invention are as follows: 1. The plastic bag recycling equipment described in the present invention provides a No. 2 conical plate, and blows air into the air inlet pipe, so that the gas flows out from the No. 1 air outlet and diffuses downward in an umbrella shape. For some plastic bags wrapping paper products, the airflow can give them a downward pressure to increase the probability that the No. 1 cutter assembly cuts through the plastic bags wrapping these garbage. At the same time, the airflow diffuses outward to promote the movement of garbage and plastic bags, and reduce the probability of them being blocked in the channel. By providing a partition parallel to the No. 1 cutter assembly, it is ensured that the plastic bag can contact with the No. 1 cutter assembly and produce relative sliding during the movement of the plastic bag in the channel. The separation mechanism can recycle the plastic bag, thereby improving the recycling rate of the equipment for plastic bags.

[0018] 2. The plastic bag recycling equipment described in the present invention has the situation that after the cutting knife cuts the plastic bag, the plastic bag is damaged in a small range and adheres to the cutting knife surface. After a long period of work accumulation, a large amount of plastic bag fragments adhere to the cutting knife surface, affecting the cutting ability of the cutting knife to the plastic bag. By setting a rotating round rod, multiple groups of cutting knives are set on the round rod. After a large amount of plastic bag fragments adhere to the cutting knife, the round rod is controlled to rotate, and the used cutting knife is rotated into the installation groove, and the unused cutting knife is transferred to the top of the installation groove to cut the plastic bag, thereby reducing the number of times the cutting knife is stopped to handle the cutting knife. The equipment is easy to use, and the hollow structure is adopted in conjunction with the No. 1 conical plate. The cutting knife rotated into the No. 1 conical plate and the plastic fragments adhered to it can be separated by suction force, so as to further reduce the frequency of cleaning the cutting knife.

[0019] 3. The plastic bag recycling equipment described in the present invention currently hooks the plastic bag by a claw, and rotates the claw and the plastic bag to throw out the garbage. There is a possibility that the plastic bag will be torn and thrown out together with the garbage. The plastic bag is cut by the first crushing mechanism and the second crushing mechanism to make the garbage in the plastic bag flow out. The plastic bag and garbage that are broken up and fall freely are separated from the garbage by adsorption, and the separation effect is better. With the help of the rotating annular plate and the connecting plate, the paper products and plastic bags adsorbed together can be separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a three-dimensional diagram of the first embodiment of the present invention; Figure 2 It is a schematic diagram of the internal structure of the body of the present invention; Figure 3 It is a schematic structural diagram of a first conical plate and a second conical plate of the present invention; Figure 4 It is a structural schematic diagram of the inverted cone plate of the present invention; Figure 5 It is a structural schematic diagram of the main shaft of the present invention; Figure 6 is a cross-sectional view of the annular plate and the connecting plate of the present invention; Figure 7 It is a schematic diagram of the mechanism of the No. 1 cutting knife assembly of the present invention; In the figure: 1. body; 2. No. 1 cutting mechanism; 21. No. 1 conical plate; 22. No. 1 cutting knife assembly; 221. round rod; 222. cutting knife; 23. mounting groove; 3. separation mechanism; 31. spindle; 32. feeding pipe; 33. adsorption structure; 331. long plate; 332. adsorption hole; 34. annular plate; 35. air outlet pipe; 36. inclined plate; 37. discharge port; 38. shield plate; 39. connecting plate; 4. No. 2 conical plate; 5. partition plate; 6. channel; 7. air inlet pipe; 8. No. 1 air outlet; 9. No. 2 cutting mechanism; 91. inverted cone plate; 92. No. 2 cutting knife assembly; 93. feeding port; 10. connecting plate; 11. annular blade; 12. recovery space; 13. vibrator; 14. No. 2 air outlet; 15. connecting pipe. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] Embodiment 1: Figure 1-Figure 7 As shown, a plastic bag recycling device according to an embodiment of the present invention comprises a body 1 and a No. 1 cutting mechanism 2 and a separation mechanism 3 installed in the body 1, wherein the No. 1 cutting mechanism 2 comprises a No. 1 conical plate 21 and a plurality of No. 1 cutting knife assemblies 22 for cutting plastic bags, wherein the No. 1 cutting knife assemblies 22 are distributed in a circular array on the No. 1 conical plate 21, and the separation mechanism 3 is used to separate the plastic bags and the garbage in the plastic bags, and further comprises: a No. 2 conical plate 4 rotatably installed on the body 1, wherein the No. 2 conical plate 4 is installed above the No. 1 conical plate 21; a plurality of partitions 5 installed in a circular array on the No. 2 conical plate 4, wherein the No. 2 conical plate 4 is installed on the No. 1 conical plate 21; and the No. 2 conical plate 4 is installed in a circular array on the No. 2 conical plate 4. The partition 5 is fixedly connected to the No. 1 conical plate 21, and two adjacent partitions 5 form a channel 6. A number of No. 1 cutting knife assemblies 22 are evenly distributed on the channels 6. The partition 5 is arranged in parallel with the No. 1 cutting knife assembly 22 and is located on one side of the No. 1 cutting knife assembly 22; an air inlet pipe 7 is rotatably installed on the No. 2 conical plate 4, and the air inlet pipe 7 is fixedly connected to the body 1; a number of No. 1 air outlet holes 8 are opened on the lower surface of the No. 2 conical plate 4, and the No. 1 air outlet holes 8 are connected to the air inlet pipe 7. The No. 1 air outlet holes 8 are arranged obliquely, and the gas diffuses downward in an umbrella shape after going out of the No. 1 air outlet holes 8.

[0024] Specifically, the existing device is to put the plastic bag wrapped with garbage into the center of the bag breaking mechanism, and the bag breaking mechanism is provided with spikes. By rotating the bag breaking mechanism, the garbage wrapped in the plastic bag is driven to rotate synchronously. Under the action of centrifugal force, the garbage wrapped in the plastic bag moves to the edge of the bag breaking mechanism. During the movement, the garbage wrapped in the plastic bag contacts the spikes to achieve the bag breaking action. However, for some plastic bags containing paper products such as paper towels, the overall weight of the paper products and the plastic bags is relatively light, and the plastic bags are easy to float, so that they cannot contact the spikes well, and there is a possibility that the plastic bags cannot be broken by the spikes. The second conical plate 4 is provided with a feeding port. Before operation, air is introduced into the air inlet pipe 7. During operation, the second conical plate 4 is controlled to rotate counterclockwise (viewed from top to bottom). The second conical plate 4 drives the first conical plate 21 to rotate synchronously through the partition plate 5. The garbage is fed from the feeding port of the second conical plate 4, and the plastic bag wrapped in the garbage falls onto the first conical plate 21. The plastic bag wrapped in the garbage randomly enters a channel 6. As the first conical plate 21 rotates, the centrifugal force generated can drive the plastic bag wrapped in the garbage to move to the edge of the first conical plate 21. While moving, the partition plate 5 pushes the bag The plastic bag wrapped with garbage rotates synchronously, so the plastic bag wrapped with garbage slides along the side wall of the partition 5 to the edge of the first cone plate 21. Since the first cutting knife assembly 22 parallel to the partition 5 is arranged in the channel 6, the plastic bag can be cut to make the garbage in the plastic bag flow out. Then the plastic bag and the garbage fall on the outer periphery of the first cone plate 21 together and pass through the separation mechanism 3. The separation mechanism 3 separates the plastic bag and the garbage. The garbage is discharged from the body 1, and the plastic bag remains in the body 1 for recycling. By setting the second cone plate 4, air is blown into the air inlet pipe 7, and the gas is discharged from the air inlet pipe 7. The air flows out of the No. 1 air outlet 8 and diffuses downward in an umbrella shape. For some plastic bags wrapped in paper products, the airflow can give them a downward pressure to increase the probability of the No. 1 cutter assembly 22 cutting through the plastic bags wrapped in these garbage. At the same time, the airflow diffuses outward, which can promote the movement of garbage and plastic bags and reduce the probability of them being blocked in the channel 6. By setting a partition 5 parallel to the No. 1 cutter assembly 22, it is ensured that the plastic bag can contact and slide relative to the No. 1 cutter assembly 22 during the movement in the channel 6. The separation mechanism 3 can recycle the plastic bags, thereby improving the recycling rate of the equipment for plastic bags.

[0025] like Figure 4 and Figure 7 As shown, the No. 1 cutting mechanism 2 also includes a plurality of mounting grooves 23 provided on the No. 1 conical plate 21, and the No. 1 cutting knife assembly 22 includes a round rod 221 mounted on the mounting groove 23, and a plurality of cutting knives 222 are fixedly mounted on the round rod 221, and the round rod 221 is rotatably mounted on the No. 1 conical plate 21.

[0026] Specifically, after the cutting knife 222 cuts the plastic bag, there is a situation that the plastic bag is damaged in a small area and adheres to the blade of the cutting knife 222. After a long period of work, a large number of plastic bag fragments adhere to the blade of the cutting knife 222, which affects the cutting ability of the cutting knife 222 to the plastic bag, and it is necessary to stop the machine and deal with the cutting knife 222; multiple groups of cutting knives 222 are arranged on the round rod 221, and only one cutting knife 222 is located outside the mounting groove 23 during operation, that is, the cutting knife 222 can contact the plastic bag. After a large number of plastic bag fragments adhere to the cutting knife 222, the round rod 221 is controlled to rotate, so that the used cutting knife 222 rotates into the mounting groove 23, and the unused cutting knife 222 is transferred to the top of the mounting groove 23 to cut the plastic bag, thereby reducing the number of times the machine is stopped to deal with the cutting knife 222, and it is convenient to use.

[0027] like Figure 3 and Figure 4 As shown, it also includes a No. 2 cutting mechanism 9 installed in the body 1, and the No. 2 cutting mechanism 9 includes: an inverted cone plate 91 fixedly installed in the body 1, the inverted cone plate 91 is located below the No. 1 cone plate 21, and the diameter of the inverted cone plate 91 is greater than the diameter of the No. 1 cone plate 21; a number of No. 2 cutting knife assemblies 92 installed on the inverted cone plate 91, and the structure of the No. 2 cutting knife assembly 92 is consistent with the structure of the No. 1 cutting knife assembly 22; and a feed port 93 opened in the center of the inverted cone plate 91.

[0028] Specifically, plastic bags and garbage fall from the outer periphery of the No. 1 conical plate 21 to the inverted conical plate 91, and slide down under the action of gravity. During the sliding process, they can contact the No. 2 cutting knife assembly 92, and the No. 2 cutting knife assembly 92 can cut the uncut plastic bags. After sliding down, the garbage and plastic bags pass through the discharge port 93. The garbage and plastic bags passing through the discharge port 93 are separated by the separation mechanism 3; by setting the No. 2 cutting mechanism 9, the uncut plastic bags can be cut to increase the probability of cutting the plastic bags.

[0029] like Figure 5 and Figure 6 As shown, the separation mechanism 3 includes: a main shaft 31 rotatably installed in the body 1, the main shaft 31 is provided with spiral blades, and the rotating main shaft 31 is used to stir the plastic bags and garbage coming out of the discharge port 93; a discharge pipe 32 fixedly installed at the lower end of the body 1; and an adsorption structure 33 installed at the upper end of the discharge pipe 32 and below the inverted cone plate 91.

[0030] Specifically, during operation, the main shaft 31 is controlled to rotate, and the plastic bags and garbage falling from the discharge port 93 are broken up by the spiral blades on the main shaft 31, so that the garbage and plastic bags are scattered, and the plastic bags are adsorbed by the adsorption structure 33, and the garbage falls onto the discharge pipe 32 under the action of gravity and is discharged from the body 1 through the discharge pipe 32.

[0031] As shown in the figure, the upper end of the main shaft 31 is higher than the feed opening 93 of the inverted cone plate 91 , a connecting plate 3910 is fixedly installed above the inverted cone plate 91 , and a circle of annular blades 11 are provided on the lower surface of the connecting plate 3910 .

[0032] Specifically, the spiral blades of the main shaft 31 located at the discharge port 93 are in contact with the discharge port 93, and can transport plastic bags and garbage downward. After the garbage and plastic bags are transported to the bottom of the discharge port 93, the outer sides of the garbage and plastic bags are not blocked, so the garbage and plastic bags can be scattered outward under the action of the rotating centrifugal force. By setting an annular blade 11 under the connecting plate 3910, some plastic bags wrapped in garbage that have not been cut are large in size and can be stuck between the annular blade 11 and the inverted cone plate 91. Since the connecting plate 3910 and the annular blade 11 rotate with the main shaft 31, the rotating annular blade 11 can cut the plastic bags wrapped in garbage, further improving the probability of cutting the plastic bags.

[0033] like Figure 3-Figure 5 As shown, the adsorption structure 33 includes a plurality of long plates 331, and the long plates 331 are provided with adsorption holes 332. The plurality of long plates 331 form a closed polygonal column, and the spiral blades are located at the center of the polygonal column, and a recovery space 12 is formed between the periphery of the polygonal column and the inner wall of the body 1, and the long plates 331 are rotatably connected to the inverted cone plate 91 and the discharge pipe 32.

[0034] Specifically, a suction pump can be arranged outside the body 1. When working, the long plate 331 is connected to the suction pump. After the suction pump is started, a suction force can be generated at the adsorption hole 332. After the plastic bag and garbage pass through the discharge port 93, the long plate 331 adsorbs the plastic bag through the suction force at the adsorption hole 332, and the garbage falls onto the discharge pipe 32 under the action of gravity and is discharged from the body 1 through the discharge pipe 32. After a large number of plastic bags are adsorbed on the long plate 331, the long plate 331 is controlled to rotate so that the side containing the adsorption hole 332 and the plastic bag faces the recycling space 12, and then the suction pump is controlled to stop working so that there is no suction force at the adsorption hole 332, and the plastic bag falls into the recycling space 12 under the action of gravity, and then the long plate 331 is controlled to rotate back, and this cycle is repeated to continuously separate and recycle the garbage and plastic bags.

[0035] like Figure 1 , Figure 3 and Figure 6 As shown, the separation mechanism 3 also includes: an annular plate 34 rotatably mounted on the body 1, the upper surface of the annular plate 34 is provided with a No. 1 air intake hole, and the annular plate 34 is located at the periphery and below the adsorption structure 33; an air outlet pipe 35 rotatably mounted on the annular plate 34, the air outlet pipe 35 is connected to the No. 1 air intake hole of the annular plate 34, and the air outlet pipe 35 is fixedly connected to the body 1; two inclined plates 36 fixedly mounted on the body 1, the two inclined plates 36 are placed up and down, and the body 1 is provided with an exhaust port 37 on the horizontal plane corresponding to the two inclined plates 36; a shield plate 38 slidably mounted on the body 1, the shield plate 38 is located above the inclined plate 36 which is located a little higher; a connecting plate 39 slidably mounted on the annular plate 34, the connecting plate 39 is located between the inclined plate 36 and the annular plate 34.

[0036] Specifically, since there are paper products wrapped in the plastic bag, the long board 331 will not only absorb the plastic bag but also the paper products. The shielding plate 38 can block the space between the machine body 1 and the upper inclined plate 36 under the action of gravity. After the connecting plate 39 moves up, the shielding plate 38 can be pushed to move synchronously, so that the space between the inclined plate 36 and the machine body 1 is connected to the recycling space 12. In the initial state, the connecting plate 39 and the lower inclined plate 36 are in the same horizontal plane. Before work, the air outlet pipe 35 is connected to another suction pump. After the suction hole 332 of the long board 331 is turned to the recycling space 12, the suction pump is controlled to start so that suction force is generated at the No. 1 suction hole, and the suction pump connected to the long board 331 is controlled to stop working. At the same time, the annular plate 34 is controlled to rotate, so that the garbage on the long board 331 falls evenly on the annular plate 34 and is sucked by the No. 1 suction hole on the annular plate 34. Then The annular plate 34 is controlled to rotate quickly. Since the size of the plastic bag is larger than the used paper product, after the plastic bag falls on the annular plate 34, there are more No. 1 suction holes that absorb the plastic bag, so the plastic bag is more firmly absorbed by the annular plate 34. The centrifugal force is generated by the high-speed rotation of the annular plate 34, and the absorbed paper product on it is thrown onto the receiving plate 39. Since the receiving plate 39 is driven to rotate by the annular plate 34, the paper product is thrown from the receiving plate 39 to the inclined plate 36 below, and is discharged from the discharge port 37 through the inclined plate 36. After the paper product is separated, the receiving plate 39 is controlled to move upward until it is at the same level as the upper receiving plate 39, and then the suction pump connected to the air outlet pipe 35 is controlled to stop working, so that the plastic bag moves to the receiving plate 39 under the action of centrifugal force, and slides from the receiving plate 39 to the upper inclined plate 36, and then is discharged from the discharge port 37 on one side of the inclined plate 36.

[0037] like Figure 6 As shown, a plurality of vibrators 13 are fixedly installed inside the annular plate 34 .

[0038] Specifically, after the plastic bags and paper products fall from the long plate 331 to the annular plate 34, the vibrator 13 is controlled to start and vibrate the upper surface of the annular plate 34 to further evenly distribute the plastic bags and paper products on the surface of the annular plate 34, and at the same time, the plastic bags can be unfolded.

[0039] like Figure 4 and Figure 6 As shown, the separation mechanism 3 further includes a second air outlet 14 opened on the upper surface of the connecting plate 39 .

[0040] Specifically, a No. 1 cutting mechanism 2 and a No. 2 cutting mechanism 9 are provided in the body 1. Therefore, in the process of cutting the plastic bags, there is a possibility that the plastic bags are cut into small pieces. For some smaller plastic bags, they will move together with the paper products. By providing a No. 2 air outlet 14 on the connecting plate 39, air is blown into the connecting plate 39, and the gas is blown upward from the No. 2 air outlet 14. Since the weight of plastic bags of the same size is smaller than that of the paper products, the gas blown out of the No. 2 air outlet 14 can blow the small-sized plastic bags to float in the recycling space 12, and the paper products fall on the connecting plate 39 and move from the connecting plate 39 to the inclined plate 36, so as to realize the separation of small-sized plastic bags and paper products, so that the recycling rate of the device is higher.

[0041] like Figure 4 and Figure 6 As shown, the first conical plate 21 adopts a hollow structure, the main shaft 31 adopts a hollow structure, a plurality of connecting tubes 15 are fixedly mounted on the main shaft 31, and the main shaft 31 is connected to the first conical plate 21 through the connecting tubes 15.

[0042] Specifically, before work, the main shaft 31 is connected to the vacuum device, and the vacuum device sucks the main shaft 31. Through the connection of the connecting pipe 15, a suction force is generated inside the No. 1 conical plate 21. When the used cutting knife 222 is transferred to the inside of the No. 1 conical plate 21, the cutting knife 222 and the plastic fragments attached thereto can be separated by the suction force, so as to extend the service life of the No. 1 cutting knife assembly 22.

[0043] Working principle: before working, air is introduced into the air inlet pipe 7. When working, the second cone plate 4 is controlled to rotate counterclockwise (viewed from top to bottom). The second cone plate 4 drives the first cone plate 21 to rotate synchronously through the partition 5. The garbage is put into the feeding port of the second cone plate 4, and the plastic bag wrapped in the garbage falls onto the first cone plate 21. The plastic bag wrapped in the garbage randomly enters a channel 6. Since the first cone plate 21 rotates, the centrifugal force generated can drive the plastic bag wrapped in the garbage to move to the edge of the first cone plate 21. While moving, the partition 5 pushes the bag to move to the edge of the first cone plate 21. The plastic bag wrapped with garbage rotates synchronously, so the plastic bag wrapped with garbage slides along the side wall of the partition 5 to the edge of the first cone plate 21. Since the first cutting knife assembly 22 parallel to the partition 5 is arranged in the channel 6, the plastic bag can be cut to make the garbage in the plastic bag flow out. Then the plastic bag and the garbage fall together on the outer periphery of the first cone plate 21 to the inverted cone plate 91 and slide down under the action of gravity. During the sliding process, it can contact the second cutting knife assembly 92, and the second cutting knife assembly 92 can cut the uncut plastic bag. After sliding down, the garbage and plastic bag are separated. The material bag moves to the discharge port 93. Since the spiral blade of the main shaft 31 at the discharge port 93 is in contact with the discharge port 93, the plastic bag and garbage can be transported downward. After the garbage and plastic bag are transported to the bottom of the discharge port 93, the outer sides of the garbage and plastic bag are not blocked. Therefore, the garbage and plastic bag can be scattered outward under the action of the rotating centrifugal force. When working, the long plate 331 is connected to the suction pump. After the suction pump is started, a suction force can be generated at the adsorption hole 332. After the plastic bag and garbage pass through the discharge port 93, the long plate 331 is sucked by the suction hole 332. The plastic bags are adsorbed by the suction force, and the garbage falls onto the discharge pipe 32 under the action of gravity and is discharged from the body 1 through the discharge pipe 32. After a large number of plastic bags are adsorbed on the long plate 331, the long plate 331 is controlled to rotate so that the side containing the suction holes 332 and the plastic bags faces the recycling space 12, and then the suction pump is controlled to stop working so that there is no suction force at the suction holes 332. The plastic bags fall into the recycling space 12 under the action of gravity, and then the long plate 331 is controlled to rotate back, and this cycle is repeated to continuously separate and recycle the garbage and plastic bags.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A plastic bag recycling device, comprising a body (1) and a No. 1 cutting mechanism (2) and a separation mechanism (3) installed in the body (1), wherein the No. 1 cutting mechanism (2) comprises a No. 1 conical plate (21) and a plurality of No. 1 cutting knife assemblies (22) for cutting the plastic bags, wherein the No. 1 cutting knife assemblies (22) are arranged in a circular array on the No. 1 conical plate (21), and the separation mechanism (3) is used for separating the plastic bags from the garbage in the plastic bags, characterized in that: Also includes: A second conical plate (4) rotatably mounted on the machine body (1), wherein the second conical plate (4) is mounted above the first conical plate (21); A plurality of partitions (5) are mounted on the second conical plate (4) in an annular array, the partitions (5) are fixedly connected to the first conical plate (21), two adjacent partitions (5) form a channel (6), a plurality of first cutting knife assemblies (22) are evenly distributed on the plurality of channels (6), the partitions (5) are arranged in parallel with the first cutting knife assemblies (22), and are located on one side of the first cutting knife assemblies (22); An air intake pipe (7) rotatably mounted on the second conical plate (4), wherein the air intake pipe (7) is fixedly connected to the machine body (1); A plurality of No. 1 air outlet holes (8) are provided on the lower surface of the No. 2 conical plate (4), the No. 1 air outlet holes (8) being connected to the air inlet pipe (7), the No. 1 air outlet holes (8) being arranged at an angle, and the gas diffuses downward in an umbrella shape after exiting the No. 1 air outlet holes (8).

2. A plastic bag recycling device according to claim 1, characterized in that: The No. 1 cutting mechanism (2) further comprises a plurality of mounting grooves (23) provided on the No. 1 conical plate (21); the No. 1 cutting knife assembly (22) comprises a round rod (221) mounted on the mounting groove (23); a plurality of cutting knives (222) are fixedly mounted on the round rod (221); and the round rod (221) is rotatably mounted on the No. 1 conical plate (21).

3. A plastic bag recycling device according to claim 2, characterized in that: It also includes a second cutting mechanism (9) installed in the machine body (1), and the second cutting mechanism (9) includes: an inverted cone plate (91) fixedly mounted in the machine body (1), the inverted cone plate (91) being located below the first cone plate (21), and the diameter of the inverted cone plate (91) being greater than the diameter of the first cone plate (21); a plurality of No. 2 cutting knife assemblies (92) mounted on the inverted cone plate (91), wherein the structure of the No. 2 cutting knife assemblies (92) is consistent with the structure of the No. 1 cutting knife assemblies (22); A material discharge port (93) is provided at the center of the inverted cone plate (91).

4. A plastic bag recycling device according to claim 3, characterized in that: The separation mechanism (3) comprises: A main shaft (31) is rotatably mounted in the machine body (1), wherein the main shaft (31) is provided with spiral blades, and the rotating main shaft (31) is used to stir the plastic bags and garbage coming out of the discharge port (93); A feeding pipe (32) fixedly mounted on the lower end of the machine body (1); A suction structure (33) is installed at the upper end of the feed tube (32) and below the inverted cone plate (91).

5. A plastic bag recycling device according to claim 4, characterized in that: The upper end of the main shaft (31) is higher than the feed opening (93) of the inverted cone plate (91), a connecting plate (10) is fixedly mounted above the inverted cone plate (91), and a circle of annular blades (11) are provided on the lower surface of the connecting plate (10).

6. A plastic bag recycling device according to claim 5, characterized in that: The adsorption structure (33) comprises a plurality of long plates (331), each of which is provided with an adsorption hole (332). The plurality of long plates (331) form a closed polygonal column, the spiral blades are located at the center of the polygonal column, and a recovery space (12) is formed between the periphery of the polygonal column and the inner wall of the body (1), and the long plates (331) are rotatably connected to the inverted cone plate (91) and the discharge pipe (32).

7. A plastic bag recycling device according to claim 6, characterized in that: The separation mechanism (3) further comprises: an annular plate (34) rotatably mounted on the machine body (1), wherein a first suction hole is provided on an upper surface of the annular plate (34), and the annular plate (34) is located at the periphery of and below the adsorption structure (33); an air outlet pipe (35) rotatably mounted on the annular plate (34), the air outlet pipe (35) being communicated with a No. 1 air intake hole of the annular plate (34), and the air outlet pipe (35) being fixedly connected to the machine body (1); Two inclined plates (36) fixedly mounted on the machine body (1), the two inclined plates (36) being placed one above the other, and the machine body (1) being provided with discharge ports (37) on horizontal planes corresponding to the two inclined plates (36); a shielding plate (38) slidably mounted on the machine body (1), wherein the shielding plate (38) is located above the inclined plate (36) which is located at a higher position; A connecting plate (39) is slidably mounted on the annular plate (34), and the connecting plate (39) is located between the inclined plate (36) and the annular plate (34).

8. The plastic bag recycling device according to claim 7, characterized in that: A plurality of vibrators (13) are fixedly mounted inside the annular plate (34).

9. A plastic bag recycling device according to claim 8, characterized in that: The separation mechanism (3) further comprises a second air outlet hole (14) provided on the upper surface of the connecting plate (39).

10. The plastic bag recycling equipment according to claim 9, characterized in that: The first conical plate (21) has a hollow structure, the main shaft (31) has a hollow structure, a plurality of connecting tubes (15) are fixedly mounted on the main shaft (31), and the main shaft (31) is connected to the first conical plate (21) via the connecting tubes (15).

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