A regenerative plastic pelletizer

Abstract

The utility model discloses the field of plastic pelletizing, specifically is a kind of recycled plastic pelletizer, the utility model includes support platform, the upper side of support platform is provided with conveying roller, and the front side of conveying roller is equipped with first motor, the inside of conveying roller is slidably provided with plastic strip, and the upper side of plastic strip is provided with limiting mechanism;The limiting mechanism includes the limiting frame closely attached on the upper side of plastic strip, and the outside of limiting frame is slidably connected with the sliding slot, and the sliding slot is opened in the inside of protective shell two sides before and after.The utility model can limit plastic strip when cutting by setting limiting mechanism, can guarantee that plastic strip does not produce the deviation of position when cutting, to guarantee the precision of plastic strip pelletizing;Vibrating screen mechanism is simultaneously arranged, can carry out efficient vibrating screening to the plastic of pelletizing completion, can screen the plastic particle of cutting unqualified, and subsequent unqualified plastic particle can be secondary cutting, to guarantee the quality of plastic cutting.

Description

Technical Field

[0001] This utility model relates to the field of plastic pelletizing technology, specifically a recycled plastic pelletizer. Background Technology

[0002] Recycled plastics are plastic raw materials made from waste plastics through physical or chemical processes. They are characterized by environmental protection and resource recycling. Typically, the plastics are shaped into strips and then cut into pellets.

[0003] In existing methods, recycled plastics are shaped into strips and then cut into pellets using a rotating cutter. However, the plastic strips are not limited during the cutting process, which can cause them to deviate and affect the cutting accuracy. Furthermore, due to various factors, the pellets may be of varying sizes during the cutting process. Without proper screening, this can negatively impact the quality of the final pellets. Utility Model Content

[0004] The purpose of this invention is to provide a recycled plastic pelletizer to solve the problems in the prior art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A recycled plastic pelletizer includes a support platform, a conveying roller is provided on the upper side of the support platform, a first motor is installed on the front side of the conveying roller, a plastic strip is slidably provided on the inner side of the conveying roller, and a limit mechanism is provided on the upper side of the plastic strip.

[0007] The limiting mechanism includes a limiting frame that fits tightly against the upper side of the plastic strip. A sliding groove is slidably connected to the outer side of the limiting frame. The sliding groove is opened on the front and rear sides inside the protective shell. A push rod is fixedly installed at the upper middle part of the limiting frame. Two cylindrical pins are provided on the rear side of the upper end of the push rod. The upper cylindrical pin is slidably connected to the inner side of the cam disk, and the lower cylindrical pin is slidably connected to the outer side of the cam disk. The cam disk is rotatably mounted inside the protective shell. A rotating shaft is fixedly installed at one end of the inner side of the cam disk. A second motor is connected to the rear end of the rotating shaft. A fixing frame is slidably connected to the outer side of the push rod. The upper outer part of the fixing frame is fixedly connected to the protective shell. The fixing frame is rotatably connected to the rotating shaft.

[0008] Preferably, the protective shell is fixedly installed on the upper end of the support platform, a rotating blade is provided on the upper right side of the support platform, a fourth motor is connected to the front end of the rotating blade, the rotating blade is rotated inside the protective shell on the right side, and a screening box is provided on the lower right side of the support platform.

[0009] Preferably, a cooling unit is provided on the upper side of the screening box. The cooling unit includes a cooling air outlet located on the upper right side of the screening box. A cooling machine is connected to the upper side of the cooling air outlet via a pipe. The cooling machine is located on the rear side of the screening box.

[0010] Preferably, the screening box is provided with a vibrating screening mechanism inside, which includes a screening box that is slidably disposed inside the screening box.

[0011] Preferably, the lower end of the screening box is engaged with a connecting frame on both the front and rear sides, and a fixing column is slidably connected inside the connecting frame. The fixing column is fixedly installed on the front and rear sides inside the screening box.

[0012] Preferably, the lower middle part of the screening box is symmetrically fixed with connecting blocks by bolts, and a first rotating rod is rotatably connected inside the connecting block, and a second rotating rod is rotatably connected to the lower side of the first rotating rod.

[0013] Preferably, the lower end of the second rotating rod is internally connected to a connecting shaft, the connecting shaft is rotatably mounted on the upper side of the inside of the support, the outer side of the support is fixedly connected to the screening box, and the left end of the support is connected to a third motor.

[0014] Preferably, a receiving box is provided below the screening box, and the receiving box is snapped into place on the lower inside of the screening box.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model, by setting a limiting mechanism, can limit the plastic strip during cutting, ensuring that the plastic strip will not shift in position during cutting, thereby ensuring the accuracy of plastic strip pelletizing;

[0017] 2. This utility model, by setting up a vibrating screening mechanism, can efficiently vibrate and screen the granulated plastic, and can screen out unqualified plastic granules. The unqualified plastic granules can then be cut again, thereby ensuring the quality of plastic cutting. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a perspective structural diagram of the pelletizer of this utility model;

[0020] Figure 2 This is a perspective view of the connection structure of the conveyor roller, plastic strip, and first motor of the pelletizer of this utility model;

[0021] Figure 3 This is a perspective view of the limiting frame, slide groove, and second motor connection structure of the pelletizer of this utility model;

[0022] Figure 4 This utility model pelletizer Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the perspective cross-sectional structure of the pelletizer of this utility model;

[0024] Figure 6 This is a perspective view of the connection structure between the sieving box and the vibrating sieving mechanism of the pelletizer of this utility model;

[0025] Figure 7 This is a schematic diagram of the vibrating screening mechanism of the pelletizer of this utility model.

[0026] The attached figures are labeled as follows:

[0027] 1. Support platform; 2. Conveyor roller; 3. Plastic strip; 4. First motor; 5. Protective shell; 6. Limiting mechanism; 61. Limiting frame; 62. Slide groove; 63. Push rod; 64. Cylindrical pin; 65. Cam plate; 66. Fixing frame; 67. Rotating shaft; 68. Second motor; 7. Screening box; 8. Cooling assembly; 81. Cooling air outlet; 82. Cooler; 9. Vibrating screening mechanism; 91. Screening box; 92. Connecting frame; 93. First rotating rod; 94. Second rotating rod; 95. Connecting shaft; 96. Third motor; 97. Receiving box; 98. Bracket; 99. Connecting block; 911. Fixing column; 10. Rotating blade; 11. Fourth motor. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] To address the problems existing in the prior art, this embodiment provides the following technical solution: a recycled plastic pelletizer, comprising a support platform 1 and a conveying roller 2. A first motor 4 is connected to the front of the conveying roller 2, and a plastic strip 3 is placed inside the conveying roller 2. Turning on the first motor 4 allows the conveying roller 2 to rotate, thereby conveying the plastic strip 3 placed inside the conveying roller 2. A rotating blade 10 is positioned above the right side of the support platform 1, capable of rotatably cutting the conveyed plastic strip 3. A limiting mechanism 6 is positioned above the plastic strip 3, which can... The plastic strip 3 is limited during cutting to ensure that it does not shift its position and thus ensures the cutting accuracy. A vibrating screening mechanism 9 is also provided, located inside a screening box 7, which is positioned below the right side of the support platform 1. After the plastic strip 3 is granulated, it enters the screening box 7, where the vibrating screening mechanism 9 vibrates and screens the granules. This allows for the separation of granules of different sizes, facilitating the secondary processing of substandard granules and ensuring the quality of the plastic cutting.

[0030] like Figure 2 , Figure 3 and Figure 4 As shown, after the plastic passes through the extruder, it is extruded into strips and then passes through the inner side of the two sets of conveying rollers 2 set above the support platform 1. This facilitates the conveying to the rotating blade 10 on the upper right side of the support platform 1 for cutting. The conveying rollers 2 have multiple grooves inside, meaning that multiple plastic strips 3 can be placed inside the conveying rollers 2 at one time. The front end of the conveying rollers 2 is connected to the first motor 4. When the first motor 4 is turned on, the plastic strips 3 can be conveyed. When the right side of the plastic strip 3 is conveyed to the rotating blade 10, the fourth motor 11 connected to the front side of the rotating blade 10 is turned on, and the rotating blade 10 can rotate, thus quickly cutting the plastic strip 3.

[0031] To prevent the plastic strip 3 from shifting position during cutting, a limiting frame 61 is installed on the upper side of the plastic strip 3. The front and rear sides of the limiting frame 61 slide within the grooves 62 on the front and rear sides of the protective shell 5. The protective shell 5 is installed on the upper part of the support platform 1, protecting the upper side of the support platform 1. A push rod 63 is fixedly installed at the upper middle part of the limiting frame 61. Two cylindrical pins 64 are provided on the rear side of the upper end of the push rod 63. The inner side of the cylindrical pins 64 is slidably connected to the cam disk 65. The upper cylindrical pin 64 is slidably connected to the inner side of the cam disk 65, and the lower cylindrical pin 64 is slidably connected to the outer side of the cam disk 65. A rotating shaft 67 is installed on one end of the inner side of the cam disk 65. The rear end of the rotating shaft 67 is connected to the second motor 68. Furthermore, a fixing frame 66 is slidably connected to the outer side of the push rod 63. The upper end of the fixing frame 66 is fixedly connected to the protective shell 5. That is, when the rotating shaft 67 is started... When the second motor 68 is connected to the rear end, both the rotating shaft 67 and the cam disk 65 will rotate. At this time, the cylindrical pin 64 and the cam disk 65 will slide. When the cam disk 65 rotates, the push rod 63 installed with the cylindrical pin 64 will move up and down inside the fixed frame 66. When the fixed frame 66 moves downward, it will drive the connected limit frame 61 to move together. That is, the limit frame 61 moves downward and can contact the upper side of the plastic strip 3, thereby limiting the position of the plastic strip 3. At this time, the fourth motor 11 connected to the front end of the rotating blade 10 is started, and the rotating blade 10 will rotate to precisely cut the plastic strip 3. Generally, the inner side of the rotating blade 10 is equipped with a heating wire. When cutting the plastic strip 3, the heating wire can be turned on, which can effectively prevent the plastic from sticking to the outer surface of the rotating blade 10 during cutting. The limit mechanism 6 can be adjusted up and down, which does not affect the transmission of the plastic strip 3, and can limit the plastic strip 3 during cutting.

[0032] like Figure 4 , Figure 5 and Figure 6As shown, after the plastic strip 3 is cut into pellets, it enters the screening box 7 through the ramp set on the right side of the support platform 1. A screening box 91 is set on the upper inner side of the screening box 7. The cut plastic pellets first enter the screening box 91. Multiple holes are arrayed on the lower inner side of the screening box 91 to screen the cut pellets. A connecting frame 92 is engaged and connected to the lower front and rear sides of the screening box 91. A fixing column 911 is slidably connected inside the connecting frame 92. The fixing column 911 is fixedly installed on the lower front and rear sides of the screening box 7. A connecting block 99 is symmetrically fixed to the lower middle side of the screening box 91 by bolts. The lower inner side of the connecting block 99 is rotatably connected to the first rotating rod 93. The lower side of the first rotating rod 93 is rotatably connected to the second rotating rod 94. The lower inner side of the second rotating rod 94 is connected to the connecting shaft 95. The connecting shaft 95 is rotatably set inside the bracket 98. At the same time, a third motor 96 is installed on the left side of the connecting shaft 95. The third motor 96 can rotate in both directions, with a set rotation angle of 30°. When the third motor 96 starts, the connecting shaft 95 will rotate, and the second rotating rod 94 will also rotate. The first rotating rod 93 connected to the upper side of the second rotating rod 94 will also rotate, which will push the screening box 91 connected to the upper side to move. The connecting frame 92, which is engaged on the front and rear sides of the screening box 91, will slide up and down on the outside of the fixed column 911, so that the screening box 91 can move up and down, which can quickly screen the plastic particles that enter the screening box 91. The qualified particles will remain inside the screening box 91, and the unqualified particles will enter the receiving box 97, which is engaged at the bottom of the screening box 7, through the hole opened on the lower side of the screening box 91. Furthermore, there are rotating plates on the right side of both the screening box 91 and the receiving box 97. The lower side of the rotating plate is rotatably connected to the screening box 7, and the upper side is fixed to the screening box 7 by bolts, so that it can be opened to facilitate the removal of the screened particles.

[0033] Secondly, a cold air inlet 81 is set on the upper right side of the screening box 7. The cold air inlet 81 is fixedly connected to the air conditioner 82 through a pipe. When the air conditioner 82 is turned on, cold air can be delivered into the cold air inlet 81 through the pipe. The cold air can enter the interior of the screening box 7. When the plastic particles are vibrated and screened, the residual heat of the plastic particles can be removed, preventing the plastic particles from sticking together after cutting.

[0034] All of the above motor models are Z4-180-21.

[0035] The working principle of this recycled plastic pelletizer is as follows: Plastic strips 3 are placed into grooves inside conveyor rollers 2 for transport. When the right side of the plastic strip 3 reaches the rotating blade 10 on the upper right side of the support platform 1, the limiting mechanism 6 on the upper side of the plastic strip 3 is activated to limit its movement. The limiting mechanism 6 can be adjusted up and down, ensuring both the transport of the plastic strip 3 and the limiting of its movement during cutting, thus guaranteeing the cutting accuracy. Simultaneously, the cut plastic pellets enter the screening box 7. A vibrating screening mechanism 9 is installed inside the screening box 7 to vibrate and screen the plastic pellets, quickly separating pellets of different sizes. Furthermore, a cooling air assembly 8 is installed on the upper right side of the screening box 7. This assembly transmits cool air to the inside of the screening box 7 during plastic cutting, effectively removing residual heat from the plastic pellets and preventing them from sticking together.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A recycled plastic pelletizer, characterized in that: Includes a support platform (1), a conveying roller (2) is provided on the upper side of the support platform (1), a first motor (4) is installed on the front side of the conveying roller (2), a plastic strip (3) is slidably provided on the inner side of the conveying roller (2), and a limit mechanism (6) is provided on the upper side of the plastic strip (3); The limiting mechanism (6) includes a limiting frame (61) that fits tightly against the upper side of the plastic strip (3). A slide groove (62) is slidably connected to the outer side of the limiting frame (61). The slide groove (62) is opened on the front and rear sides of the interior of the protective shell (5). A push rod (63) is fixedly installed at the upper middle part of the limiting frame (61). Two cylindrical pins (64) are provided on the rear side of the upper end of the push rod (63). The upper cylindrical pin (64) is slidably connected to the inner side of the cam disk (65). The lower cylindrical pin (64) is slidably connected to the inner side of the cam disk (65). The pin (64) is slidably connected to the outside of the cam disk (65), the cam disk (65) is rotatably set inside the protective shell (5), a rotating shaft (67) is fixedly installed at one end of the inner side of the cam disk (65), a second motor (68) is connected to the rear end of the rotating shaft (67), a fixed frame (66) is slidably connected to the outside of the push rod (63), the outer upper end of the fixed frame (66) is fixedly connected to the protective shell (5), and the fixed frame (66) is rotatably connected to the rotating shaft (67).

2. The recycled plastic pelletizer according to claim 1, characterized in that, The protective shell (5) is fixedly installed on the upper end of the support platform (1). A rotating blade (10) is provided on the upper right side of the support platform (1). The front end of the rotating blade (10) is connected to a fourth motor (11). The rotating blade (10) is rotatably installed inside the protective shell (5) on the right side. A screening box (7) is provided on the lower right side of the support platform (1).

3. A recycled plastic pelletizer according to claim 2, characterized in that, A cooling unit (8) is provided on the upper side of the screening box (7). The cooling unit (8) includes a cooling port (81) located on the upper right side of the screening box (7). A cooler (82) is connected to the upper side of the cooling port (81) via a pipe. The cooler (82) is located on the rear side of the screening box (7).

4. A recycled plastic pelletizer according to claim 3, characterized in that, The screening box (7) is equipped with a vibrating screening mechanism (9), which includes a screening box (91) that is slidably disposed inside the screening box (7).

5. A recycled plastic pelletizer according to claim 4, characterized in that, The lower end of the screening box (91) is connected to the front and rear sides of the connecting frame (92), and the connecting frame (92) is slidably connected to the fixing column (911), which is fixedly installed on the front and rear sides of the screening box (7).

6. A recycled plastic pelletizer according to claim 5, characterized in that, The screening box (91) has connecting blocks (99) symmetrically fixed to the lower middle part by bolts. The connecting blocks (99) are rotatably connected to a first rotating rod (93), and the lower side of the first rotating rod (93) is rotatably connected to a second rotating rod (94).

7. A recycled plastic pelletizer according to claim 6, characterized in that, The lower end of the second rotating rod (94) is connected to a connecting shaft (95), which is rotatably mounted on the upper side of the inside of the bracket (98). The outer side of the bracket (98) is fixedly connected to the screening box (7), and the left end of the bracket (98) is connected to a third motor (96).

8. A recycled plastic pelletizer according to claim 5, characterized in that, A receiving box (97) is provided below the screening box (91), and the receiving box (97) is engaged and located on the lower side of the inside of the screening box (7).

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