A plastic washing system with friction cleaning

Abstract

The present invention relates to the technical field of plastic water washing, and more specifically, to a plastic water washing system with friction cleaning. The system comprises a water pool, a spray mechanism, and a plurality of rollers spaced apart along the length of the water pool. The rollers are rotatably mounted on the top of the water pool, and the interior of the rollers is hollow, with the outer rings provided with through-holes communicating with the interior. The outer rings of the rollers are also provided with a collecting mechanism, a guiding mechanism, and a pushing mechanism for guiding plastic sheets into the rollers. In this plastic water washing system with friction cleaning, a guide member is provided to guide the plastic sheets so that the water jetted by the spray mechanism does not affect the normal movement of the plastic sheets. Simultaneously, a push plate is provided to push the underwater plastic sheets to move, causing frictional impact between the plastic sheets and the water. This combination of spraying and rollers not only improves cleaning efficiency but also does not affect the movement of the plastic sheets.

Description

Technical Field

[0001] The invention relates to the technical field of plastic water washing, in particular to a plastic water washing system with friction cleaning. Background Art

[0002] At present, in actual production and life, the use of plastic film products is huge. However, if the plastic film is not handled properly after use, it will cause extremely serious environmental pollution and serious waste of resources. Therefore, to address this problem, a variety of plastic film resource recycling devices have appeared.

[0003] The recycling and reuse process of waste film usually involves a series of steps, including collection, cleaning, transportation, crushing, cleaning, and re-granulation. Among them, the plastic film is crushed into plastic sheets, which then enter the water washing system for cleaning.

[0004] During the cleaning process, rotating rollers are generally used to drive the floating plastic sheets forward to achieve continuous cleaning. However, this method is prone to the following problems during use:

[0005] Since the plastic sheets float on the water surface, it is difficult for the plastic sheets to generate a large friction impact with the water when the roller drives the plastic sheets forward, resulting in the inability to improve the cleaning efficiency. The only way is to lengthen the water washing system or set up a spray mechanism. The water flow sprayed by the spray mechanism is perpendicular to the water surface (if the spray water flow is inclined, the impact force of the water flow will quickly flush the plastic sheets to the discharge end of the pool, making it difficult to effectively clean the plastic sheets). However, the vertical jet will form a dynamic barrier, affecting the forward efficiency of the plastic sheets.

[0006] Therefore, whether lengthening the water washing system or setting up a spray mechanism will result in an increase in the time required to clean the plastic sheets. Summary of the Invention

[0007] The object of the present invention is to provide a plastic water washing system with friction cleaning, which combines a spray mechanism with a roller so that floating plastic sheets can be placed underwater, and improves the cleaning efficiency through underwater friction impact, thereby solving the problem raised in the above-mentioned background technology, namely, the use of a rotating roller to drive the floating plastic sheets forward, which increases the time required to clean the plastic sheets.

[0008] To achieve the above objectives, a plastic water washing system with friction cleaning comprises a water pool, a spray mechanism, and a plurality of rollers spaced apart along the length of the water pool. The rollers are rotatably mounted on the top of the water pool. The interior of the rollers is a hollow structure, and the outer rings are provided with through holes communicating with the interior. The outer rings of the rollers are also provided with a collecting mechanism, a guiding mechanism, and a pushing mechanism for guiding plastic sheets into the interior of the rollers.

[0009] The drainage end of the ejection mechanism is located inside the roller. When the guide mechanism is at the bottom of the roller, the guide mechanism corresponds to the drainage end of the ejection mechanism. The ejection mechanism uses the impact force of the liquid to flush the plastic sheets in the roller into the guide mechanism, so that the guide mechanism guides the plastic sheets underwater. The pushing mechanism pushes the plastic sheets underwater to increase the friction impact between the plastic sheets and the water.

[0010] Wherein, the aperture of the through hole is smaller than the volume of the plastic sheet.

[0011] In the above technical solution, the guiding mechanism guides the plastic sheet so that the water flow can flush the plastic sheet underwater. At the same time, the pushing mechanism pushes the plastic sheet underwater to generate friction impact between the plastic sheet and the water. This can prevent the plastic sheet from being washed on the water surface.

[0012] On this basis, the injection mechanism includes a water pump connected to the water pool and a plurality of inner tubes arranged on the top of the water pool, and the plurality of inner tubes are all connected to the water pump;

[0013] The inner tube passes through the roller and is rotatably connected to the roller, and the bottom of the inner tube is connected to a plurality of nozzles.

[0014] On this basis, the collecting mechanism is a bucket fixedly set on the outer ring of the roller, and the side wall of the bucket is provided with multiple leakage holes with a volume smaller than the plastic sheets; the position of the outer ring of the roller corresponding to the bucket is provided with a feed port. The bucket can collect plastic sheets floating on the water surface as the roller rotates, and then transport the plastic sheets to the inside of the roller through the angle generated by the rotation.

[0015] On this basis, the guiding mechanism is a flow guide fixedly arranged on the outer ring of the roller. The flow guide is a square tubular structure. One end of the flow guide is connected to the inside of the roller, and the other end extends into the water when the flow guide rotates to the bottom of the roller; the end of the flow guide extending into the water is bent toward the pushing mechanism.

[0016] With this structural design, the jetted water flow impacts the plastic sheet downwards, and under the limiting action of the guide member, the plastic sheet does not move horizontally but moves vertically and then enters the water.

[0017] On this basis, the pushing mechanism is a filter plate arranged on the outer ring of the roller.

[0018] The outer ring of the rotating roller is provided with a push plate, the push plate is located between the material collecting mechanism and the flow guide, and the side wall of the push plate is provided with a plurality of penetrating filter holes, and the push plate and the filter holes together constitute the filter plate.

[0019] In another technical solution, the end of the guide member extending underwater is bent toward the moving direction of the roller, and the side wall of the guide member is provided with a plurality of through holes, and the through holes and the guide member together constitute the filter plate.

[0020] This technical solution combines the filter plate with the guide piece. When the jetted water flows into the guide piece, it draws in the external water flow through the perforations, thereby interfering with the floating speed of the plastic sheet.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In this friction-cleaning plastic washing system, a flow guide is provided to guide the plastic sheets, ensuring that the water jet from the jet mechanism does not affect the normal movement of the plastic sheets. Simultaneously, a push plate is provided to propel the plastic sheets underwater, creating frictional impact between the plastic sheets and the water. This combination of jetting and rotating rollers not only improves cleaning efficiency but also does not affect the movement of the plastic sheets.

[0023] 2. In the plastic water washing system with friction cleaning, when the high-speed water flow enters the guide piece, the pressure inside the guide piece will be reduced, so that the water in the pool will flow into the guide piece through the perforation, interfering with the floating of the plastic sheet, so that the guide piece has sufficient time to contact the plastic sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the water pool of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the injection mechanism of the present invention;

[0027] Figure 4 The structure of the roller of the present invention is schematically shown Figure 1 ;

[0028] Figure 5 The structure of the roller of the present invention is schematically shown Figure 2 ;

[0029] Figure 6 The working state of the roller of the present invention is shown as follows Figure 1 ;

[0030] Figure 7 The working state of the roller of the present invention is shown as follows Figure 2 ;

[0031] Figure 8 It is a structural schematic diagram of the baffle of the present invention;

[0032] Figure 9It is a structural schematic diagram of the filter hole of the present invention.

[0033] The meaning of each number in the figure is:

[0034] 100. Water tank; 101. Conveying mechanism; 102. Motor; 110. Roller; 111. Through hole; 112. Paddle; 120. Injection mechanism; 121. Filter box; 122. Water pump; 123. Outlet pipe; 124. Diverter pipe; 125. Inner pipe; 126. Nozzle; 130. Bucket; 131. Feed inlet; 140. Guide piece; 141. Filter hole; 142. Push plate; 143. Perforation; 144. Baffle; 145. Outlet. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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.

[0036] Aiming at the problem that the time of cleaning the plastic sheets increases by using the rotating roller 110 to drive the floating plastic sheets forward, the present invention provides a plastic washing system with friction cleaning. Figure 1 As shown, the washing system includes a water pool 100, a spray mechanism 120, and a plurality of rollers 110 spaced apart along the length of the water pool 100. The top and right end of the water pool 100 (the position of the right end is referenced to FIG. Figure 2 The direction indicated by the arrow in the middle) are all open structures, refer to Figure 2 The right end of the pool 100 is tilted upward, so that the right end opening of the pool 100 is at a higher position to prevent the water in the pool 100 from flowing out. A conveying mechanism 101 is provided inside the pool 100. The conveying mechanism 101 is located at the bottom of the pool 100. The conveying mechanism 101 rotates to the right to move the cleaned plastic sheets floating on the water surface, so that the cleaned plastic sheets are moved through the right end opening of the pool 100 to the next process.

[0037] The roller 110 is Figure 3 The motor 102 in the rotating roller 110 is driven and the rotating direction is counterclockwise. It should be noted that the plurality of rollers 110 can be driven by one motor 102, or each roller 110 can be equipped with one motor 102.

[0038] like Figure 4As shown, the interior of roller 110 is hollow, connected to the exterior via through-holes 111 provided on its outer ring. The diameter of through-holes 111 is smaller than the volume of the plastic sheet to prevent it from passing through. The outer ring of roller 110 is also equipped with a collecting mechanism, a guiding mechanism, and a pushing mechanism for guiding the plastic sheet into roller 110. Furthermore, the drainage end of ejection mechanism 120 is located within roller 110. Thus, when the guiding mechanism aligns with the drainage end of ejection mechanism 120, ejection mechanism 120 utilizes the impact force of the liquid to push the plastic sheet from roller 110 into the guiding mechanism, causing it to be guided underwater. The pushing mechanism then pushes the plastic sheet underwater, increasing the frictional impact between the plastic sheet and the water.

[0039] In addition, a shift plate 112 is provided on the outer ring of the roller 110 . The shift plate 112 is a smooth plate-shaped structure, which can push the plastic sheet forward during the rotation of the roller 110 .

[0040] like Figure 3 As shown, the spray mechanism 120 includes a water pump 122 connected to the pool 100 and a plurality of inner tubes 125 arranged on the top of the pool 100, and the plurality of inner tubes 125 are all connected to the water pump 122. Figure 4 As shown, the inner tube 125 passes through the roller 110 in a rotating manner. Figure 5 As shown, the bottom of the inner tube 125 is connected to a plurality of nozzles 126. Through this design, the water pump 122 sucks the water in the pool 100 and pumps it into the inner tube 125, and then sprays it out through the nozzles 126.

[0041] During implementation, a filter box 121 is first installed on the side wall of the pool 100. The filter box 121 is connected to the interior of the pool 100, allowing water in the pool 100 to flow into the filter box 121. A filter element is installed inside the filter box 121 to filter the water. The suction end of the water pump 122 is connected to the filter box 121, and the discharge end is connected to the outlet pipe 123. One end of the outlet pipe 123 is connected to the diverter pipe 124, which is located at the top of the pool 100 and is arranged along the length of the pool 100. Then, one end of the inner tube 125 is connected to the side wall of the diverter pipe 124. At this time, the water pump 122 can deliver water to multiple inner tubes 125.

[0042] Example 1, as Figure 5As shown, the material collection mechanism is a bucket 130 fixed to the outer ring of the roller 110. The outer edge of bucket 130 is bent in the direction of rotation of the roller 110 to prevent plastic flakes from falling from the outer edge of bucket 130. Furthermore, the sidewall of bucket 130 is provided with multiple drainage holes smaller than the volume of the plastic flakes for drainage, allowing bucket 130 to scoop up only the plastic flakes. Furthermore, an inlet 131 is provided on the outer ring of the roller 110, corresponding to the portion of bucket 130, to allow scooped plastic flakes to enter the interior of the roller 110 through inlet 131.

[0043] The guiding mechanism is a guide member 140 fixedly mounted on the outer ring of the roller 110. The guide member 140 is a square tubular structure. One end of the guide member 140 is connected to the inside of the roller 110, and the other end extends underwater when the guide member 140 rotates to the bottom of the roller 110. The end extending underwater is bent toward the pushing mechanism (i.e., to the left). In addition, the angle between the guide member 140 and the bucket 130 is less than 180 degrees. At this time, a gap is formed between the bucket 130 and the guide member 140. Figure 5 In the state, when the bucket 130 rotates to the top of the roller 110, the guide member 140 is at the bottom of the roller 110. For specific functions, please refer to the working principle of this embodiment.

[0044] In addition, the bottom height H2 of the roller 110 is higher than the water surface height H1. In this way, since the roller 110 is not in contact with the water, the plastic sheets in the roller 110 will not be in a floating state, so that the plastic sheets will gather at the connection between the guide member 140 and the roller 110, thereby improving the efficiency of the plastic sheets entering the guide member 140.

[0045] The pushing mechanism is a filter plate. In this embodiment, a push plate 142 is provided on the outer ring of the roller 110. The push plate 142 is located between the bucket 130 and the guide member 140. The sidewall of the push plate 142 is provided with a plurality of filter holes 141 extending therethrough. The push plate 142 and the filter holes 141 together constitute the filter plate.

[0046] In other words, the guide member 140 guides the plastic sheet so that the water jetted by the spray mechanism 120 does not affect the normal movement of the plastic sheet. At the same time, the push plate 142 pushes the plastic sheet underwater, causing friction between the plastic sheet and the water to impact. This combination of the spray and the roller 110 not only improves cleaning efficiency but also does not affect the movement of the plastic sheet.

[0047] The working principle of Example 1 is described in detail below:

[0048] First, if Figure 6As shown in the upper half of the figure, the dotted line is the water level. When the roller 110 rotates counterclockwise, the bucket 130 rotates to the bottom to shovel in the plastic sheets floating on the water surface, and the water shoveled in by the bucket 130 is discharged through the leakage holes on the side wall of the bucket 130, so that the bucket 130 only shovels in the plastic sheets.

[0049] Then, if Figure 6 As shown in the lower half of the figure, when the bucket 130 rotates to the top of the roller 110, the bucket 130 itself is tilted, and the plastic sheets in the bucket 130 fall into the roller 110 through the feed port 131. At the same time, the paddle 112 pushes some of the plastic sheets forward.

[0050] Then, if Figure 7 As shown in the upper half of the figure, when the guide member 140 rotates to the bottom of the roller 110, the water pump 122 is started to spray water into the guide member 140 through the nozzle 126. At this time, the plastic sheets in the roller 110 are flushed into the guide member 140 and then discharged to the underwater area a through the bottom end of the guide member 140.

[0051] Finally, if Figure 7 As shown in the lower half of the figure, when the plastic sheet in area a has not yet floated to the water surface, the roller 110 drives the push plate 142 to contact the plastic sheet. At this time, water can pass through the push plate 142, but the plastic sheet will be intercepted by the push plate 142. The push plate 142 pushes the plastic sheet to move in the water, and the friction impact generated between the plastic sheet and the water achieves a cleaning effect.

[0052] In the above, reference Figure 5 The distance L1 between the guide member 140 and the push plate 142 needs to match the rotation speed of the roller 110. For example, when the roller 110 rotates slowly, the distance L1 between the guide member 140 and the push plate 142 needs to be reduced so that the push plate 142 can contact the underwater plastic sheet in time and prevent the plastic sheet from rising to the water surface.

[0053] It is worth noting that the water pump 122 can start to run when the guide member 140 rotates to the bottom, or it can be in a running state all the time.

[0054] For further reference, Figure 8 The inner part of the roller 110 is fixed with a baffle 144, and the outer ring of the roller 110 is provided with an outlet 145 at the position corresponding to the baffle 144 and the push plate 142. In this way, when the push plate 142 rotates to Figure 8 When in the middle state, the liquid sprayed from the nozzle 126 will flow into the surface of the push plate 142 under the guidance of the baffle 144, and wash away the plastic sheet on the surface of the push plate 142, thereby reducing the residual plastic sheet on the surface of the push plate 142.

[0055] Example 2: This example is implemented on the basis of Example 1, mainly combining the pushing mechanism and the guiding mechanism. Figure 9 As shown, the end of the guide member 140 extending underwater is bent toward the movement direction of the roller 110 (i.e., rightward), and the side wall of the guide member 140 is provided with a plurality of through holes 143, which together with the guide member 140 constitute a filter plate.

[0056] The working principle of this embodiment is as follows:

[0057] When the guide member 140 rotates to Figure 9 When in the middle state, the liquid is sprayed into the guide member 140 through the nozzle 126, and the plastic sheet is sprayed through the bottom end of the guide member 140 to the front (i.e., the right side) of the guide member 140. At this time, the guide member 140 continues to rotate and contacts the sprayed plastic sheet, and then pushes the plastic sheet to move, completing the friction impact between the plastic sheet and the water.

[0058] Furthermore, the pressurizing effect of the water pump 122 causes the water to be ejected at high speed through the nozzle 126. Figure 9 When the high-speed jet of water enters the guide member 140, the pressure in the guide member 140 is reduced, and the water in the pool 100 flows into the guide member 140 through the perforation 143 (refer to Figure 9 The water flowing into the guide member 140 will also reduce the floating speed of the plastic sheet, so that the guide member 140 has sufficient time to contact the plastic sheet.

[0059] It can be seen that when the high-speed water flow enters the guide member 140, the pressure inside the guide member 140 will be reduced, so that the water in the pool 100 will flow into the guide member 140 through the perforation 143, interfering with the floating of the plastic sheet, so that the guide member 140 has sufficient time to contact the plastic sheet.

[0060] It should be noted that, in the present invention, the bent end of the guide member 140 should not be bent upward, because bending upward will increase the floating speed of the plastic sheet.

[0061] 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 merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic washing system with friction cleaning, comprising a water pool (100), a spray mechanism (120), and a plurality of rollers (110) spaced apart along the length of the water pool (100), wherein the rollers (110) are rotatably arranged on the top of the water pool (100), and characterized in that: The interior of the rotating roller (110) is a hollow structure, and the outer ring is provided with a through hole (111) communicating with the interior; the outer ring of the rotating roller (110) is also provided with a collecting mechanism, a guiding mechanism, and a pushing mechanism for guiding the plastic sheets into the interior of the rotating roller (110); The drainage end of the ejection mechanism (120) is located inside the roller (110); when the guide mechanism is at the bottom of the roller (110), the guide mechanism corresponds to the drainage end of the ejection mechanism (120); the ejection mechanism (120) uses the impact force of the liquid to flush the plastic sheet inside the roller (110) into the guide mechanism, so that the guide mechanism guides the plastic sheet underwater; the pushing mechanism pushes the plastic sheet underwater to increase the friction impact between the plastic sheet and the water; Wherein, the aperture of the through hole (111) is smaller than the volume of the plastic sheet; The material collecting mechanism is a bucket (130) fixedly arranged on the outer ring of the roller (110), and the side wall of the bucket (130) is provided with a plurality of leakage holes smaller in volume than the plastic sheet; A feeding port (131) is provided at a position of the outer ring of the rotating roller (110) corresponding to the bucket (130); The guiding mechanism is a flow guide (140) fixedly arranged on the outer ring of the roller (110), the flow guide (140) being a square tubular structure, one end of the flow guide (140) being connected to the interior of the roller (110), and the other end extending underwater when the flow guide (140) rotates to the bottom of the roller (110); The end of the guide member (140) extending underwater is a bent structure; The pushing mechanism is a filter plate arranged on the outer ring of the roller (110); The outer ring of the rotating roller (110) is provided with a push plate (142), the push plate (142) is located between the material collecting mechanism and the flow guide (140), and the side wall of the push plate (142) is provided with a plurality of penetrating filter holes (141), and the push plate (142) and the filter holes (141) together constitute the filter plate; A baffle (144) is fixedly provided inside the rotating roller (110), and an outlet (145) is provided at a portion of the outer ring of the rotating roller (110) corresponding to the baffle (144) and the push plate (142).

2. The plastic water washing system with friction cleaning according to claim 1, characterized in that: The injection mechanism (120) includes a water pump (122) connected to the water pool (100) and a plurality of inner tubes (125) arranged on the top of the water pool (100), and the plurality of inner tubes (125) are all connected to the water pump (122); The inner tube (125) passes through the rotating roller (110) and is rotatably connected to the rotating roller (110), and the bottom of the inner tube (125) is connected to a plurality of nozzles (126).

3. The plastic water washing system with friction cleaning according to claim 1, characterized in that: The end of the flow guide (140) extending underwater is bent toward the material pushing mechanism.

4. The plastic water washing system with friction cleaning according to claim 1, characterized in that: The end of the guide member (140) extending underwater is bent toward the movement direction of the roller (110). The side wall of the flow guide (140) is provided with a plurality of through-holes (143), and the through-holes (143) and the flow guide (140) together constitute the filter plate.

5. The plastic water washing system with friction cleaning according to claim 1, characterized in that: The bottom height of the rotating roller (110) is higher than the water surface height.

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