Paper knife, fork and spoon stamping waste recycling treatment unit and method

Abstract

The invention relates to the technical field of waste recycling, in particular to a paper knife, fork and spoon stamping waste recycling treatment unit and method.The paper knife, fork and spoon stamping waste recycling treatment unit comprises a treatment tank, a smashing cylinder is rotationally installed in the treatment tank, and a smashing motor is fixedly installed above the treatment tank; a smashing cutter and a spiral cutter which are located in the smashing cylinder are installed on a driving shaft of the smashing motor, the smashing cylinder comprises a cylinder body, and an annular butt strap is arranged on the outer wall of the top end of the cylinder body. The crushing cylinder capable of rotating by a certain angle is additionally arranged in the treatment tank, the stamping waste is introduced into the crushing cylinder for crushing and then enters the treatment tank after crushing, when crushed paper pulp is too thick, the crushing cylinder is driven by rotation of the paper pulp to rotate by a certain angle, and at the moment, electrode plates are in contact with electrode slices; the electromagnetic valve on the water supply pipe is opened to automatically add water into the crushing cylinder, manual calculation of the water adding amount and control of the water adding time are not needed, the operation is more convenient, and the treatment efficiency can be remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste recycling, and in particular to a unit and method for recycling and utilizing punched waste of paper cutlery and spoon. Background Art

[0002] Paper cutlery is a disposable tableware made from food-grade paper or plant-based fibers (such as wood pulp or sugarcane pulp), specifically designed to replace traditional plastic cutlery. Its core advantage lies in its biodegradability, significantly reducing "white pollution" and aligning with global plastic restrictions. The industrial production of paper cutlery typically utilizes a multi-layer paper lamination and molding process to ensure product strength, hygiene, and biodegradability. The main steps are to glue multiple layers of food-grade paper together, then laminarize them through multiple rollers to form a base material layer. A rolling cutter or punching machine is then used to cut the composite paper into the main contours of the cutlery, fork, or spoon, similar to how a mold cuts the initial shape. Finally, the die-cut paper sheets are placed in a specialized mold, where a heat press or hydraulic press embosses the concave and convex shapes (such as the concave surface of a spoon or the tines of a fork).

[0003] Currently, the utilization rate of a single piece of raw cardboard in the molded production of paper cutlery, forks, and spoons reaches a maximum of approximately 85%. This results in a significant amount of stamping waste, which can be converted back into pulp for reuse after shredding. Currently, stamping waste processing is mostly done in a single pass. This involves first determining the weight of the cardboard, then adding a specific proportion of water based on the weight, and then shredding it. Once this batch of waste is processed, the next pass can be processed. However, this single pass approach can process a relatively low amount of waste per unit time, hindering efficiency. Furthermore, assembly line processing makes it difficult to control the water addition ratio. A low water ratio increases the load on the motor, potentially damaging it. A high water ratio causes the paper to become more dispersed, resulting in lower shredding efficiency and poor results. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a paper cutlery, fork and spoon stamping waste recycling and processing unit, which can effectively solve the problem in the prior art that it is inconvenient to control the water addition ratio when processing stamping waste on the assembly line.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A paper cutlery, fork and spoon stamping waste recycling processing unit and method, comprising a processing tank, wherein a crushing drum is rotatably mounted inside the processing tank, a crushing motor is fixedly mounted above the processing tank, and a crushing knife and a spiral knife located in the crushing drum are mounted on the driving shaft of the crushing motor; The crushing cylinder comprises a cylinder body, an annular plate is provided on the outer wall of the top of the cylinder body, an annular groove adapted to the annular plate is provided on the inner wall of the top of the processing tank, and a discharge net is installed in the middle of the cylinder body; A fixing plate is provided on the inner wall of the annular groove, a connecting plate elastically connected to the fixing plate is installed on the outer wall of the annular strap, an electrode plate is also installed on the outer wall of the annular strap, a contact electrode is installed on the electrode plate, two electrode sheets are provided inside the annular groove, and the electrode plate is located between the two electrode sheets, a water supply pipe is installed on the top of the processing tank, and an electromagnetic valve is installed on the water supply pipe, and the electromagnetic valve opens when the contact electrode contacts any electrode sheet.

[0006] In the above-mentioned paper knife, fork and spoon stamping waste recycling and processing unit, the spiral knife is located below the crushing knife, and a plurality of ribs are installed on the inner wall of the bottom of the crushing cylinder.

[0007] In the above-mentioned paper knife, fork and spoon stamping waste recycling and processing unit, annular strips are installed on the upper and lower surfaces of the annular strap, and the top and bottom surfaces of the annular groove are provided with slots adapted to the annular strips.

[0008] In the above-mentioned paper knife, fork and spoon stamping waste recycling and processing unit, the discharge net is located above the crushing knife.

[0009] In the above-mentioned paper knife, fork and spoon stamping waste recycling and processing unit, a scraping mechanism is also installed on the processing tank, and the scraping mechanism includes two symmetrically arranged reciprocating screws, and the two reciprocating screws are rotatably installed on the bottom wall of the processing tank, and the bottom ends of the two reciprocating screws extend to the bottom of the processing tank and are synchronously connected. Both reciprocating screws are equipped with lifting blocks, and a sliding rod is horizontally inserted on the lifting block. A scraper adapted to the outer wall of the crushing barrel is installed at one end of the sliding rod, and a guide frame is installed inside the processing tank, and the guide frame controls the scraper to move in a runway-type route.

[0010] In the above-mentioned paper knife, fork and spoon stamping waste recycling and processing unit, a guide groove is provided on the guide frame, the guide groove is runway-shaped, and a sliding ball adapted to the guide groove is provided at the end of the slide rod away from the scraper.

[0011] In the above-mentioned paper knife, fork and spoon stamping waste recycling and processing unit, elastic top sheets are provided on the inner walls of the top and bottom ends of the guide groove. The elastic top sheets are flattened when the sliding ball passes through and push the sliding ball forward.

[0012] In the above-mentioned paper knife, fork and spoon stamping waste recycling and processing unit, a wetting mechanism is provided above one side of the processing tank, and the wetting mechanism includes a fixed seat, a feeding hole is horizontally opened on the fixed seat, and a pushing port connected to the feeding hole is opened at the end of the fixed seat facing away from the processing tank, and two pinching rollers are symmetrically installed inside the pushing port, and the surface of the pinching rollers is densely covered with ejectors. The interior of the fixed seat is respectively provided with an upper water cavity and a lower water cavity located on the upper and lower sides of the feeding hole, and a plurality of water permeable holes are opened on the top and bottom surfaces of the feeding hole.

[0013] In the above-mentioned paper cutlery, fork and spoon stamping waste recycling and processing unit, the depth of the lower water cavity does not exceed 10 mm.

[0014] The present invention also provides a method for recycling and utilizing the stamping waste of paper cutlery, forks and spoons, which is applied to the above-mentioned paper cutlery, forks and spoons stamping waste recycling unit and comprises the following steps: S1: Water is introduced into the upper water chamber and the lower water chamber and the water pressure is maintained so that the lower water chamber is always full and overflows outward; S2: Fold the stamping waste into a suitable thickness and push it between two rollers. The rollers puncture the upper and lower surfaces of the stamping waste. The stamping waste enters the feeding hole and is moistened by the water flow in the upper and lower directions, and then enters the crushing cylinder. S3: The stamping waste entering the crushing cylinder is repeatedly crushed by the crushing knife and the spiral knife. The pulp that meets the size falls into the processing tank from the discharge net and finally flows out of the processing tank to wait for subsequent processing.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention further provides a crushing drum that can rotate to a certain angle inside the processing tank. The stamping waste is first passed into the crushing drum for crushing, and then enters the processing tank after the crushing is completed. When the crushed pulp is too viscous, the crushing drum is driven by the rotation of the pulp to rotate to a certain angle. At this time, the electrode plate will contact the electrode sheet, and the solenoid valve on the water supply pipe will open to automatically add water to the crushing drum. There is no need to manually calculate the amount of water to be added and control the timing of water addition. It is more convenient and can significantly improve the processing efficiency. A scraping mechanism is set on the outside of the crushing cylinder. When the pulp is discharged from the discharge net, it is easy to adhere to the outer wall of the crushing cylinder. In order to prevent the pulp from staying on the outer wall of the crushing cylinder for a long time and drying out, the scraping mechanism can automatically scrape the pulp off. The scraper will leave the surface of the crushing cylinder when moving upward to avoid pushing the pulp upward. This is clever and convenient, further improving the processing efficiency. A wetting mechanism is also set above the processing tank, which can quickly moisten the cardboard waste. A large number of holes are pierced on the cardboard by two piercing rollers, so that water can quickly enter the inside of the cardboard, making the cardboard soft and wet in advance, thereby reducing the load of the crushing motor and the resistance of the blade, and also facilitating the acceleration of the crushing speed, thereby improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A front view of a processing tank according to the present invention; Figure 3 It is a structural schematic diagram of the pulverizing cylinder of the present invention; Figure 4 Schematic diagram of the internal structure of the processing tank of the present invention; Figure 5 for Figure 2 AA cross-sectional view; Figure 6 A top view of the pulverizing tube of the present invention; Figure 7 for Figure 6 Cross-sectional view of BB; Figure 8 for Figure 4 A magnified view of the structure at position C in FIG; Figure 9 for Figure 4 A magnified view of the structure at D in FIG; Figure 10 It is a schematic diagram of the rear structure of the present invention; Figure 11 Schematic cross-section of the wetting mechanism.

[0018] The numbers in the figure represent: 1. Processing tank; 2. Wetting mechanism; 201. Fixed seat; 202. Pushing port; 203. Pinching roller; 204. Guide plate; 205. Upper water chamber; 206. Lower water chamber; 3. Crushing cylinder; 301. Cylinder body; 302. Annular strap; 303. Connecting plate; 304. Electrode plate; 305. Discharging net; 306. Rib; 4. Crushing motor; 5. Water supply pipe; 6. Scraping mechanism; 601. Reciprocating screw; 602. Lifting block; 603. Sliding rod; 604. Scraper; 605. Guide frame; 606. Synchronous wheel; 607. Guide groove; 608. Sliding ball; 609. Elastic top plate; 7. Annular groove; 71. Electrode plate; 8. Crushing knife; 9. Spiral knife. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] The present invention will be further described below with reference to the embodiments.

[0021] Example: Refer to Figures 1-11 A paper cutlery, fork and spoon stamping waste recycling and processing unit includes a processing tank 1, a crushing barrel 3 is rotatably installed inside the processing tank 1, a crushing motor 4 is fixedly installed above the processing tank 1, and a crushing knife 8 and a spiral knife 9 located in the crushing barrel 3 are installed on the driving shaft of the crushing motor 4. The crushing knife 8 provides the main crushing function, and the spiral knife 9 can also convey the material downward while providing a certain crushing capacity, so that the waste always has a tendency to move downward, so that the material entering the crushing barrel 3 can smoothly descend and be crushed by the crushing knife 8, and continue to move downward after the initial crushing by the crushing knife 8. As the pulp accumulates, the pulp is forced to reach the top and be processed by the crushing knife 8 again, which helps to improve the processing effect. As a better embodiment of the present invention, the outer ring diameter of the spiral knife 9 is selected to be half of the inner diameter of the crushing barrel 3, so that the material conveyed downward by the spiral knife 9 can move up from the periphery of the spiral knife 9.

[0022] Among them, the crushing cylinder 3 includes a cylinder body 301, and an annular strap 302 is provided on the outer wall of the top of the cylinder body 301. An annular groove 7 adapted to the annular strap 302 is opened on the inner side wall of the top of the processing tank 1. The crushing cylinder 3 is rotatably mounted on the processing tank 1 through the annular strap 302. A discharge net 305 is installed in the middle of the cylinder body 301. The discharge net 305 is selected with a suitable aperture so that the pulp particles that meet the standards are discharged from the discharge net 305 and fall into the processing tank 1. A discharge pipe is set at the bottom of the processing tank 1 to discharge the crushed pulp for subsequent processing.

[0023] Reference Figure 5 A fixing plate is provided on the inner wall of the annular groove 7, a connecting plate 303 elastically connected to the fixing plate is installed on the outer wall of the annular strap 302, an electrode plate 304 is also installed on the outer wall of the annular strap 302, and a contact electrode is installed on the electrode plate 304. Two electrode sheets 71 are provided inside the annular groove 7, and the electrode plate 304 is located between the two electrode sheets 71. A water supply pipe 5 is installed on the top of the processing tank 1, and an electromagnetic valve is installed on the water supply pipe 5. The electromagnetic valve opens when the contact electrode contacts any electrode sheet 71.

[0024] When processing paper, cutlery, and fork waste, the pulverizing motor 4 is kept on, and an appropriate amount of cardboard waste is continuously fed into the pulverizing drum 3. After the pulverizing waste enters the pulverizing drum 3, it is gradually broken down into pulp particles by the pulverizing blades 8 and the spiral blades 9, and the material inside the pulverizing drum 3 is constantly rotating. Because the pulverizing drum 3 is elastically mounted and rotatable via the connecting plate 303, when the pulp becomes too viscous, the adhesion between the pulp and the inner wall of the pulverizing drum 3 causes the pulverizing drum 3 to rotate a certain angle, thereby causing the contact electrode on the electrode plate 304 to contact the electrode sheet 71, and the solenoid valve on the water supply pipe 5 to open, adding water to the pulverizing drum 3. As the water flows, the pulp becomes thinner, the adhesion between the pulp and the pulverizing drum 3 decreases, and the pulverizing drum 3 resets under the action of the elastic force, and the solenoid valve closes. Therefore, the design of the present invention can realize the function of automatically controlling the timing of water addition, and there is no need to manually calculate the amount of water to be added, which is more efficient and convenient. The water adding time controlled by each opening of the solenoid valve can be set by the program. There is no need to wait until the grinding cylinder 3 is reset to stop adding water, because there is a certain lag in the thinning of the pulp. If you wait until the grinding cylinder 3 is reset to stop adding water, excessive water may be added, causing the pulp to become thin. The specific water adding time can be set according to actual conditions, which will not be elaborated here.

[0025] Reference Figure 4 The spiral blade 9 is positioned below the pulverizing blade 8, which is positioned above the spiral blade 9. After the waste material is initially pulverized by the pulverizing blade 8, it is then fed downward by the spiral blade 9. As the pulp accumulates, it is moved back to the height of the pulverizing blade 8 for further pulverization, thereby improving the pulverization effect. Multiple ribs 306 are installed on the inner wall of the bottom of the pulverizing drum 3. These ribs 306 provide some resistance to the pulp, making the rotation of the pulp more pronounced on the pulverizing drum 3. This allows the pulverizing drum 3 to rotate through a wider angle, ensuring stable opening of the solenoid valve.

[0026] Furthermore, the discharge screen 305 is positioned above the pulverizers 8. This design ensures that the height of the pulp accumulated in the pulverizer drum 3 is always slightly higher than the pulverizers 8. Cardboard waste that has just fallen into the pulverizer drum 3 smoothly enters the pulp and is transported downward by the vortex generated by the spiral blades 9. After being fully crushed by the pulverizers 8 and 9, it is finally discharged. This ensures effective pulverization and reduces the probability of clogging the mesh of the discharge screen 305. If the discharge screen 305 were positioned lower, a large number of incompletely crushed pulp particles would inevitably become stuck on the discharge screen 305, hindering the smooth discharge of the pulp.

[0027] Reference Figure 3 and Figure 4 Annular strips are installed on the upper and lower surfaces of the annular strap 302, and slots that fit into the annular strips are provided on the top and bottom surfaces of the annular groove 7. The annular strips and the slots cooperate with each other to fix the position of the crushing drum 3, so that the crushing drum 3 rotates stably.

[0028] Reference Figure 2 and Figure 4 The processing tank 1 is also equipped with a scraping mechanism 6, which includes two symmetrically arranged reciprocating screws 601. The two reciprocating screws 601 are both rotatably mounted on the bottom wall of the processing tank 1, and the bottom ends of the two reciprocating screws 601 extend to the bottom of the processing tank 1 and are synchronously connected. The bottom ends of the two reciprocating screws 601 are both equipped with synchronous wheels 606, which are connected by a synchronous belt. A motor is installed at the bottom of the processing tank 1 to drive one of the synchronous wheels 606 to rotate, so that the two reciprocating screws 601 can rotate synchronously. The two reciprocating screws 601 are each equipped with a lifting block 602, and a sliding rod 603 is horizontally inserted into the lifting block 602. One end of the sliding rod 603 is equipped with a scraper 604 that adapts to the outer wall of the crushing cylinder 3. A guide frame 605 is installed inside the processing tank 1. The guide frame 605 controls the scraper 604 to move in a runway-like path.

[0029] Reference Figure 4 and Figure 8 A guide groove 607 is provided on the guide frame 605. The guide groove 607 is a runway type, that is, a rectangular structure with semicircular ends. A sliding ball 608 adapted to the guide groove 607 is provided at one end of the slide rod 603 away from the scraper 604.

[0030] When the crushing motor 4 is working, the scraping mechanism 6 is turned on, and the two reciprocating screws 601 keep rotating, driving the two lifting blocks 602 to move up and down reciprocatingly, so that the slide bar 603 follows the lifting and lowering. Since the sliding ball 608 is always located in the guide groove 607, when the sliding ball 608 reaches the bottom and top of the guide groove 607, the sliding ball 608 enters the other side of the guide groove 607, causing the slide bar 603 to slide, and the scraper 604 will follow the movement. Therefore, when the scraper 604 reaches the bottom end, it will be pulled and deviate from the outer wall of the crushing cylinder 3. When the scraper 604 reaches the top, it will approach the crushing cylinder 3 and stick to the outer wall of the crushing cylinder 3, thereby achieving the effect of not scraping the pulp upwards when the scraper 604 moves upward. This is clever and convenient, and prevents the pulp from sticking to the outer wall of the crushing cylinder 3 and being dried by the wind, affecting subsequent use.

[0031] Reference Figure 9 , elastic top sheets 609 are provided on the inner walls of the top and bottom ends of the guide groove 607. The elastic top sheets 609 are flattened when the sliding ball 608 passes through, and push the sliding ball 608 forward. Figure 9For example, when the sliding ball 608 reaches the elastic top plate 609, the elastic top plate 609 is flattened because the sliding ball 608 still needs to move downward. When the sliding ball 608 completely reaches the lowest end of the guide groove 607, the elastic top plate 609 is also released and pushes the sliding ball 608 forward, allowing the sliding ball 608 to smoothly reach the other side of the guide groove 607. When the lifting block 602 moves upward, the sliding ball 608 can move up from the other side of the guide groove 607 instead of returning along its original path, ensuring that the scraper 604 can smoothly leave the crushing cylinder 3. This is simple and practical. The same principle applies when the sliding ball 608 reaches the top of the guide groove 607.

[0032] Reference Figures 1-11 A wetting mechanism 2 is located above one side of the processing tank 1. The wetting mechanism 2 comprises a fixed base 201 with a feed hole horizontally defined therein. A push port 202, connected to the feed hole, is defined at the end of the fixed base 201 facing away from the processing tank 1. Two symmetrically mounted rollers 203 are located within the push port 202. The surfaces of the rollers 203 are densely covered with ejector pins. An upper water chamber 205 and a lower water chamber 206 are defined within the fixed base 201, located above and below the feed hole. Multiple water-permeable holes are defined on both the top and bottom surfaces of the feed hole. A guide plate 204 is mounted on the end of the fixed base 201, proximal to the processing tank 1, for guiding the moistened waste cardboard from the feed hole into the shredding drum 3.

[0033] The rollers 203 can be driven by an external motor to rotate in opposite directions. Alternatively, the motor-free operation can be eliminated, and the punched waste cardboard can be manually pushed between the two rollers 203 to achieve the desired feeding effect. When the waste cardboard enters between the two rollers 203, both its upper and lower surfaces are punctured by the ejector pins on the rollers 203. When the waste cardboard enters the feed hole, water from the upper and lower water chambers 205 and 206 quickly penetrates the interior of the waste cardboard, moistening it and softening it. This facilitates subsequent faster and better shredding, thereby improving work efficiency.

[0034] It should be noted that the depth of the lower water cavity 206 does not exceed 10 mm, so that the water in the lower water cavity 206 can more easily escape upward to wet the waste cardboard without providing excessively high water pressure, thereby reducing equipment requirements.

[0035] The present invention also provides a method for recycling and utilizing the stamping waste of paper cutlery, forks and spoons, which is applied to the above-mentioned paper cutlery, forks and spoons stamping waste recycling unit and comprises the following steps: S1: Water is introduced into the upper water chamber 205 and the lower water chamber 206 and the water pressure is maintained so that the lower water chamber 206 is always full and overflows outward; S2: The stamping waste is folded into a suitable thickness and pushed between the two pinching rollers 203. The pinching rollers 203 puncture the upper and lower surfaces of the stamping waste. The stamping waste enters the feeding hole and is moistened by the water flow in the upper and lower directions, and then enters the crushing cylinder 3; S3: The stamping waste entering the crushing cylinder 3 is repeatedly crushed by the crushing knife 8 and the spiral knife 9. The pulp that meets the size falls into the processing tank 1 from the discharge net 305 and finally flows out of the processing tank 1 to wait for subsequent processing.

[0036] In the present invention, the specific installation method of the processing tank 1 and the wetting mechanism 2 is determined by the actual working environment. The present invention only shows the connection relationship and combination method between the various components. The installation method is a very common technical means for ordinary technicians in this field, so it will not be repeated in the present invention.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A paper cutlery, fork and spoon stamping waste recycling and processing unit, comprising a processing tank (1), characterized in that: A pulverizing drum (3) is rotatably mounted inside the processing tank (1), a pulverizing motor (4) is fixedly mounted above the processing tank (1), and a pulverizing knife (8) and a spiral knife (9) located inside the pulverizing drum (3) are mounted on the drive shaft of the pulverizing motor (4); The crushing cylinder (3) comprises a cylinder (301), an annular strap (302) is provided on the outer wall of the top end of the cylinder (301), an annular groove (7) adapted to the annular strap (302) is provided on the inner side wall of the top end of the processing tank (1), and a discharge net (305) is installed in the middle of the cylinder (301); A fixing plate is provided on the inner wall of the annular groove (7), a connecting plate (303) elastically connected to the fixing plate is installed on the outer wall of the annular strap (302), an electrode plate (304) is also installed on the outer wall of the annular strap (302), a contact electrode is installed on the electrode plate (304), two electrode sheets (71) are provided inside the annular groove (7), and the electrode plate (304) is located between the two electrode sheets (71), a water supply pipe (5) is installed at the top of the processing tank (1), and a solenoid valve is installed on the water supply pipe (5), and the solenoid valve is opened when the contact electrode contacts any one of the electrode sheets (71).

2. The paper cutlery, fork and spoon stamping waste recycling and processing unit according to claim 1 is characterized in that: The spiral blade (9) is located below the crushing blade (8), and a plurality of convex ribs (306) are installed on the inner wall of the bottom of the crushing cylinder (3).

3. The paper cutlery, fork and spoon stamping waste recycling and processing unit according to claim 1 is characterized in that: Annular strips are installed on the upper and lower surfaces of the annular strap (302), and the top and bottom surfaces of the annular groove (7) are provided with slots adapted to the annular strips.

4. The paper cutlery, fork and spoon stamping waste recycling and processing unit according to claim 1 is characterized in that: The discharge net (305) is located above the crushing knife (8).

5. The paper cutlery, fork and spoon stamping waste recycling and processing unit according to claim 1 is characterized in that: The processing tank (1) is also provided with a scraping mechanism (6), the scraping mechanism (6) comprising two symmetrically arranged reciprocating screws (601), both of which are rotatably mounted on the bottom wall of the processing tank (1), and the bottom ends of the two reciprocating screws (601) extend to the bottom of the processing tank (1) and are synchronously connected, the two reciprocating screws (601) are both provided with a lifting block (602), a sliding rod (603) is horizontally inserted into the lifting block (602), and a scraper (604) adapted to the outer wall of the pulverizing cylinder (3) is installed at one end of the sliding rod (603), and a guide frame (605) is installed inside the processing tank (1), and the guide frame (605) controls the scraper (604) to move in a runway-type route.

6. The paper cutlery, fork and spoon stamping waste recycling and processing unit according to claim 5, characterized in that: A guide groove (607) is provided on the guide frame (605), and the guide groove (607) is runway-shaped. A sliding ball (608) adapted to the guide groove (607) is provided at one end of the slide bar (603) away from the scraper (604).

7. The paper cutlery, fork and spoon stamping waste recycling and processing unit according to claim 6, characterized in that: Elastic top sheets (609) are provided on the inner walls of the top and bottom ends of the guide groove (607). The elastic top sheets (609) are flattened when the sliding ball (608) passes through, and push the sliding ball (608) forward.

8. The paper cutlery, fork and spoon stamping waste recycling and processing unit according to claim 1, characterized in that: A wetting mechanism (2) is provided above one side of the processing tank (1), the wetting mechanism (2) comprising a fixed seat (201), a feeding hole being horizontally provided on the fixed seat (201), a pushing port (202) communicating with the feeding port being provided at one end of the fixed seat (201) facing away from the processing tank (1), two tying rollers (203) being symmetrically installed inside the pushing port (202), the surfaces of the tying rollers (203) being densely covered with ejector pins, an upper water cavity (205) and a lower water cavity (206) being respectively provided inside the fixed seat (201) and located on the upper and lower sides of the feeding port, and a plurality of water-permeable holes being provided on the top and bottom surfaces of the feeding port.

9. The paper cutlery, fork and spoon stamping waste recycling and processing unit according to claim 8, characterized in that: The depth of the lower water cavity (206) does not exceed 10 mm.

10. A method for recycling and treating paper cutlery stamping waste, applied to the paper cutlery stamping waste recycling unit according to any one of claims 8 to 9, characterized in that: The following steps are involved: S1: Water is introduced into the upper water chamber (205) and the lower water chamber (206) and the water pressure is maintained so that the lower water chamber (206) is always filled and flows outward; S2: The stamping waste is folded into a suitable thickness and pushed between two pinching rollers (203). The pinching rollers (203) puncture the upper and lower surfaces of the stamping waste. The stamping waste enters the feeding hole and is moistened by water flowing in the upper and lower directions, and then enters the crushing cylinder (3); S3: The stamping waste entering the crushing cylinder (3) is repeatedly crushed by the crushing knife (8) and the spiral knife (9), and the pulp that meets the size falls into the processing tank (1) from the discharge net (305), and finally flows out of the processing tank (1) to wait for subsequent processing.

Images