Underwater granulator with cleaning mechanism

Abstract

The invention relates to the technical field of underwater pelletizing, in particular to an underwater pelletizer with a cleaning mechanism, which comprises a supporting bottom plate and a feeding frame mounted above the right side of the supporting bottom plate, and a driving valve for controlling material flow is mounted in the upper part of the feeding frame in a penetrating manner; the right end of the rotating rod is connected with a pelletizing blade attached to the left side of the die head assembly, a vibration control assembly used for controlling the cutting chamber to vibrate and clean up and down is installed above the connecting frame, the outer side of the rotating rod is connected with a scraper blade assisting in cleaning through a fixing pipe, and the outer side of the scraper blade is in attached contact with the inner wall of the cutting chamber. The inner side face of the scraper is connected with a water spraying pipe assisting in cleaning through a mounting mechanism. According to the underwater granulator provided with the cleaning mechanism, the vibration control assembly enables water and materials in the cutting chamber to be in a vibration state, the materials are prevented from being adhered to the inner wall of the cutting chamber, the materials adhered to the inner wall of the cutting chamber can be vibrated off, and therefore the inner wall of the cutting chamber can be conveniently cleaned.

Description

Technical Field

[0001] The invention relates to the technical field of underwater pelletizing, in particular to an underwater pelletizer provided with a cleaning mechanism. Background Art

[0002] Underwater pelletizers are widely used in various polymers and thermoplastics due to their environmental friendliness, pollution-free operation and small footprint. Since the pellets can be quickly cooled in water, the size and shape of the pellets can be more accurately controlled, resulting in a higher compaction of the pellets.

[0003] The patent title disclosed in the prior art with the announcement number "CN116021666A" is "An underwater pelletizer", which discloses that the sawing head is provided with three blades extending radially along the rotating shaft of the sawing motor, the blades are fixed on the blade support, and the blades and the blade support are distributed circumferentially, so that the uniformity of cutting can be ensured. The sawing head is cylindrical with a conical end. The end face of the sawing head is provided with a sealing ring, and the end face of the mold cavity is also provided with a sealing ring. In this way, when the sawing head The sealing performance is better when it cooperates with the end face of the mold cavity. The sawing slide plate is slid to make the blade extend into the mold cavity until it contacts the die plate. At this time, the sawing head is sealed with the end face of the mold cavity. The water inlet pipe conveys water to cool and harden the plastic melt. The sawing motor drives the sawing head to drive the blade to rotate to complete the pelletizing of the plastic melt. Then, the water outlet pipe is opened, and the water flow carries the cut pellets out of the water blowing pipe. The patent name disclosed in the prior art with the announcement number "CN112192780A" is "a An integrated underwater pelletizer is disclosed, which is provided with a pelletizer, a pelletizer chamber and an opening valve on a connecting frame. By arranging the pelletizer, the pelletizer chamber and the opening valve on the same connecting frame, the accuracy can be improved, so that the positions of the pelletizer, the pelletizer chamber and the opening valve are more fixed. The pelletizer slides on the machine base through a slide rail, and a cutting knife head is provided on the pelletizer. The upper end of the pelletizer chamber is connected with a feed pipe, and the feed pipe is connected with a dehydration device through the feed pipe. The dehydration device includes a A dehydration centrifuge is provided on the centrifuge with a feeding device which is connected to the feeding pipe, and a water tank is connected to the lower end of the dehydration device, the water tank is fixedly installed on the base frame, a water outlet is provided on the water tank, and the water outlet is connected to the return pipe, the other end of the return pipe is connected to the pelletizing chamber, and a water pump is provided on the return pipe. The material cut by the pelletizing equipment will enter the dehydration device along the feeding pipe, and the material can be centrifugally dehydrated by the centrifuge in the dehydration device to separate the material and water.

[0004] During the pelletizing process of the underwater pelletizer in the above-mentioned prior art, if plastic or rubber and other materials with high viscosity are pelletized, small particles of materials falling from the cutter or thrown out by the cutter will stick to the inner wall of the pelletizing chamber. If the inner wall of the pelletizing chamber is not cleaned in time, it will affect the subsequent extrusion and pelletizing operations of the materials. Therefore, we propose an underwater pelletizer provided with a cleaning mechanism to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide an underwater pelletizer provided with a cleaning mechanism to solve the problem raised in the above background technology that in the process of pelletizing, when pelletizing materials with high viscosity such as plastic or rubber, small particles of materials dropped from the cutter or thrown out by the cutter will stick to the inner wall of the pelletizing chamber. If the inner wall of the pelletizing chamber is not cleaned in time, it will affect the subsequent extrusion and pelletizing operations of the materials.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an underwater pelletizer provided with a cleaning mechanism, comprising a supporting base plate and a feeding frame installed on the upper right side of the supporting base plate, a start valve for controlling the flow of materials is installed through the upper interior of the feeding frame, a cutting chamber is connected to the upper part of the supporting base plate, one end of a material conveying pipe and a water guide pipe respectively arranged above and below the cutting chamber are connected to a filtering and drying assembly, a die assembly is installed inside the feeding frame, a pelletizing motor is slidably connected to the upper left side of the supporting base plate, the right end of the pelletizing motor is connected to a rotating rod, the right end of the rotating rod penetrates the interior of the connecting frame and extends into the cutting chamber, the right end of the rotating rod is connected to a pelletizing blade fitted on the left side of the die assembly, a vibration control assembly for controlling the up and down vibration cleaning of the cutting chamber is installed above the connecting frame, a scraper for auxiliary cleaning is connected to the outer side of the rotating rod through a fixed pipe, the outer side of the scraper is in contact with the inner wall of the cutting chamber, and the inner side of the scraper is connected to a water spray pipe for auxiliary cleaning through a mounting mechanism.

[0007] Preferably, two limiting rods in a "T" shape are symmetrically installed above the supporting bottom plate, and a return spring is nested and connected to the outer side of the limiting rod;

[0008] Limit rods are provided inside both the front and rear sides of the cutting chamber;

[0009] The left and right sides of the cutting chamber are both equipped with connecting ends made of hose material, and the left and right sides of the cutting chamber are respectively connected to the connecting frame and the feeding frame through the connecting ends.

[0010] Preferably, the left side of the die assembly extends into the cutting chamber, and there is a distance between the outer side of the die assembly and the inner wall of the cutting chamber;

[0011] A water outlet made of a hose is fixedly connected to the upper right side of the cutting chamber, and a material conveying pipe is connected to the upper side of the water outlet;

[0012] A water inlet made of a hose material is fixedly penetrated inside the lower right side of the cutting chamber, a water guide pipe is connected below the water inlet, and a water inlet pipe made of a hose material is connected to the left side of the water inlet.

[0013] Preferably, a vertical rod is rotatably connected to the upper interior of the connection frame, and the lower end of the vertical rod is connected to the rotating rod through a bevel gear set.

[0014] Preferably, the interior of the fixed tube is connected to a piston column via a connecting spring, the outer side of the piston column is closely connected to the inner wall of the fixed tube, a second diverter tube is provided through the interior of the piston column, a scraper with a triangular structure is fixed to the outer end of the piston column, one end of the second diverter tube is connected to the water spray pipe, the other end of the second diverter tube is inserted into the fixed tube, and the first diverter tube is fixed through the interior of one end of the fixed tube close to the rotating rod;

[0015] One-way valves are installed in the first shunt pipe and the second shunt pipe.

[0016] Preferably, a storage cavity is provided inside the left end of the rotating rod, a circle of through holes is provided on the outer side surface of the left end of the rotating rod, a flow guide frame is rotatably installed through the outer side surface of the left end of the rotating rod, the flow guide frame is connected to the connecting frame, the space in the flow guide frame is connected to the space in the storage cavity through the through hole, and the end of the first shunt pipe away from the fixed pipe is inserted into the storage cavity;

[0017] A flow guide pipe is fixed below the flow guide frame, and the lower end of the flow guide pipe penetrates the lower surface of the connection frame and is connected with the left end of the water inlet pipe.

[0018] Preferably, the mounting mechanism comprises screws, and the water spray pipe is connected to the scraper via the screws.

[0019] Preferably, the vibration control assembly comprises horizontal plates installed at equal intervals on the outer side of the upper end of the vertical rod, and a second magnet block is installed below one end of the horizontal plate away from the vertical rod;

[0020] A first magnet block is connected to the upper left side of the cutting chamber. The first magnet block and the second magnet block have the same magnetic poles, and the lowest point of the second magnet block is higher than the highest point of the first magnet block.

[0021] Preferably, the vibration control assembly comprises push rods installed at equal intervals on the outer side of the upper end of the vertical rod, a convex block is fixed on the upper left side of the cutting chamber, and the front and rear sides of the convex block are both arranged in an inclined shape;

[0022] The highest point of the bump is higher than the lowest point of the push rod.

[0023] Preferably, the mounting mechanism includes bearings installed on the left and right ends of the water spray pipe, the left and right ends of the water spray pipe are respectively connected to the second diversion pipe and the scraper through the bearings, a vortex spring is nested and connected to the outer side of the right end of the water spray pipe, and a control rope is wrapped around the outer side of the left end of the water spray pipe, and the end of the control rope away from the water spray pipe is connected to the side of the fixed pipe through a guide wheel.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: the underwater pelletizer provided with a cleaning mechanism, the vibration control component makes the water and the material in the cutting chamber in a vibrating state, which not only prevents the material from adhering to the inner wall of the cutting chamber, but also can vibrate the material adhering to the inner wall of the cutting chamber, thereby facilitating the cleaning of the inner wall of the cutting chamber. The specific contents are as follows:

[0025] (1) The vibration control component can drive the cutting chamber to vibrate up and down at a certain height, so that the water and materials in the cutting chamber are in a vibrating state, preventing the materials from sticking to the inner wall of the cutting chamber and affecting the subsequent extrusion and pelletizing operations of the materials. At the same time, the materials sticking to the inner wall of the cutting chamber can also be vibrated off, making it easier to clean the inner wall of the cutting chamber.

[0026] (2) A portion of the water in the water guide pipe enters the cutting chamber through the water inlet, and a portion enters the water spray pipe through the water inlet pipe and the guide frame. Later, the water is sprayed into the cutting chamber through the rotating water spray pipe. The water flow sprayed from the water spray pipe generates turbulence, which can produce impact force on the material close to the inner wall of the cutting chamber, thereby preventing the material from directly contacting and adhering to the inner wall of the cutting chamber. At the same time, with the use of a scraper, the adhesion on the inner wall of the cutting chamber can be scraped and cleaned;

[0027] Furthermore, when the cutting chamber reciprocates up and down, it applies a thrust to the scraper at the corresponding position, so that the scraper drives the piston column to move into the fixed pipe, thereby causing the piston column to generate a pressure on the water in the fixed pipe, so that the water quickly passes through the second diversion pipe into the water spray pipe, thereby increasing the water flow speed in the water spray pipe. The faster water flow speed can enhance the intensity of turbulence, thereby further preventing the material from adhering to the inner wall of the cutting chamber;

[0028] Furthermore, when the piston column moves into the fixed tube, no pulling force is generated on the control rope. Therefore, the stored force of the vortex spring automatically drives the water spray pipe to rotate in the opposite direction. By repeating this operation, the water spray pipe can perform reciprocating rotation and spray water at a certain angle, thereby increasing the spraying range of the water spray pipe and further preventing the material from sticking to the inner wall of the cutting chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0030] Figure 2This is a schematic diagram of the three-dimensional structure of the supporting base plate of the present invention;

[0031] Figure 3 This is a schematic diagram of the cutting chamber structure from a bottom up view of the present invention;

[0032] Figure 4 This is a schematic diagram of the cross-sectional structure of the cutting chamber of the present invention;

[0033] Figure 5 This is a schematic diagram of the internal structure of the connection frame of the present invention;

[0034] Figure 6 It is a schematic diagram of the three-dimensional structure of the rotating rod of the present invention;

[0035] Figure 7 It is a cross-sectional structural diagram of the connection between the rotating rod and the fixed pipe of the present invention;

[0036] Figure 8 This is a schematic diagram of the cross-sectional structure of the fixed pipe of the present invention;

[0037] Fig. 9 This is a schematic diagram of the three-dimensional structure of the vertical rod in the second embodiment of the present invention;

[0038] Fig.10 It is a schematic diagram of the three-dimensional structure of the water spray pipe in the third embodiment of the present invention.

[0039] In the figure: 1, support base plate; 101, limit rod; 102, reset spring; 2, feed frame; 3, start valve; 4, material conveying pipe; 41, water outlet; 5, water guide pipe; 51, water inlet; 52, water inlet pipe; 6, connection frame; 7, pelletizing motor; 8, filter drying assembly; 9, cutting chamber; 91, connection end; 92, first magnet block; 93, bump; 10, die assembly; 11, rotating rod; 1 11. Storage chamber; 112. Through hole; 12. Scraper; 13. Vertical rod; 131. Horizontal plate; 132. Second magnet block; 133. Push rod; 14. Guide frame; 141. Guide pipe; 15. Fixed pipe; 151. Piston column; 152. Second shunt pipe; 153. Connecting spring; 154. First shunt pipe; 16. Spray pipe; 161. Vortex spring; 162. Control rope; 17. Pelletizing blade. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-Figure 10, the present invention provides the following technical solutions:

[0042] Embodiment 1: The underwater pelletizer provided with a cleaning mechanism in this embodiment not only facilitates cleaning of the inner wall of the cutting chamber 9 by vibration and turbulence generated by water flow, but also prevents the material from adhering to the inner wall of the cutting chamber 9 and affecting the subsequent extrusion and pelletizing operations of the material. For the specific structure, refer to the attached Figure 1-Figure 8 As shown, it includes a supporting base plate 1 and a feeding frame 2 installed on the upper right side of the supporting base plate 1. A start-up valve 3 for controlling the flow of materials is installed inside the upper part of the feeding frame 2. A cutting chamber 9 is connected to the upper part of the supporting base plate 1. One end of a material conveying pipe 4 and a water pipe 5 respectively arranged above and below the cutting chamber 9 are connected to a filtering and drying component 8. A die assembly 10 is installed inside the feeding frame 2. A pelletizing motor 7 is slidably connected to the upper left side of the supporting base plate 1. The right end of the pelletizing motor 7 is connected to a rotating rod 11. The right end of the rotating rod 11 penetrates the interior of the connecting frame 6 and extends into the cutting chamber 9. The right end of the rotating rod 11 is connected to a pelletizing blade 17 fitted on the left side of the die assembly 10. A vibration control component is installed to control the up and down vibration cleaning of the cutting chamber 9; the outer side of the rotating rod 11 is connected to a scraper 12 for auxiliary cleaning through a fixed tube 15, the outer side of the scraper 12 is in close contact with the inner wall of the cutting chamber 9, and the inner side of the scraper 12 is connected to a water spray pipe 16 for auxiliary cleaning through a mounting mechanism, and two limit rods 101 in a "T" shape are symmetrically installed above the supporting base plate 1, and the outer side of the limit rod 101 is nested with a reset spring 102, and the limit rods 101 are penetrated inside the front and rear sides of the cutting chamber 9, and the left and right sides of the cutting chamber 9 are installed with connecting ends 91 made of hose material, and the left and right sides of the cutting chamber 9 are respectively connected to the connecting frame 6 and the feeding frame 2 through the connecting ends 91.

[0043] The left side of the die assembly 10 extends into the cutting chamber 9, and there is a distance between the outer side of the die assembly 10 and the inner wall of the cutting chamber 9. A water outlet 41 made of a hose material is fixedly penetrated inside the upper right side of the cutting chamber 9, and a material conveying pipe 4 is connected to the upper side of the water outlet 41. A water inlet 51 made of a hose material is fixedly penetrated inside the lower right side of the cutting chamber 9, and a water guide pipe 5 is connected to the lower side of the water inlet 51. A water inlet pipe 52 made of a hose material is connected to the left side of the water inlet 51. A vertical rod 13 is rotatably connected to the upper side of the connecting frame 6, and the lower end of the vertical rod 13 is connected to the rotating rod 11 through a bevel gear set, and is fixed. The interior of the tube 15 is connected to a piston column 151 via a connecting spring 153. The outer side surface of the piston column 151 is fitted and connected to the inner wall of the fixed tube 15. A second diverter tube 152 is provided inside the piston column 151. A scraper 12 with a triangular structure is fixed to the outer end of the piston column 151. One end of the second diverter tube 152 is connected to the water spray pipe 16. The other end of the second diverter tube 152 is inserted into the fixed tube 15. A first diverter tube 154 is fixed inside one end of the fixed tube 15 close to the rotating rod 11. Both the first diverter tube 154 and the second diverter tube 152 are equipped with a one-way valve.

[0044] A storage chamber 111 is provided inside the left end of the rotating rod 11, and a circle of through holes 112 is provided on the outer side of the left end of the rotating rod 11. A flow guide frame 14 is rotatably installed on the outer side of the left end of the rotating rod 11. The flow guide frame 14 is connected to the connecting frame 6. The space in the flow guide frame 14 is connected to the space in the storage chamber 111 through the through hole 112. The end of the first shunt pipe 154 away from the fixed pipe 15 is inserted into the storage chamber 111. A flow guide pipe 141 is fixed below the flow guide frame 14. The lower end of the flow guide pipe 141 passes through the connecting frame 6. The lower surface of the frame 6 is connected to the left end of the water inlet pipe 52, the mounting mechanism includes screws, the water spray pipe 16 is connected to the scraper 12 by screws, the vibration control component includes a horizontal plate 131 installed at equal intervals on the outer side of the upper end of the vertical rod 13, and a second magnet block 132 is installed below the end of the horizontal plate 131 away from the vertical rod 13. The first magnet block 92 is connected to the upper left side of the cutting chamber 9. The first magnet block 92 and the second magnet block 132 have the same magnetic poles, and the lowest point of the second magnet block 132 is higher than the highest point of the first magnet block 92.

[0045] First, the right end of the feed frame 2 is connected to the external twin-screw extruder, and then the start valve 3 is opened, and the material enters the feed frame 2, and then the material is extruded into strips through the die head assembly 10 in the feed frame 2, and then the pelletizing motor 7 drives the rotating rod 11 and the pelletizing blade 17 to rotate to pelletize the material extruded into strips. At the same time, external water enters the cutting chamber 9 through the water pipe 5 and the water inlet 51, so that the water quickly cools and shapes the pelletized material, and at the same time, the water and material in the cutting chamber 9 are pumped away through the material conveying pipe 4 and the water outlet 41, thereby avoiding the accumulation of materials in the cutting chamber 9 and affecting the subsequent pelletizing operation, and then the material conveying pipe 4 conveys the water and material to the filtering and drying assembly 8, and the water and material are filtered and separated by the filtering and drying assembly 8, and then the material is dried and discharged (since this part is the prior art, it will not be introduced in detail here).

[0046] When the rotating rod 11 rotates, the vertical rod 13 is driven to rotate through the bevel gear set. When the vertical rod 13 rotates, the horizontal plate 131 and the second magnet block 132 in the vibration control assembly are driven to rotate together. Then, the four sets of horizontal plates 131 and the second magnet block 132 are rotated in sequence to the top of the first magnet block 92. At this time, a repulsive force is generated between the second magnet block 132 and the first magnet block 92 with the same magnetic poles, so that the first magnet block 92 drives the cutting chamber 9 to move downward. At this time, the front and rear sides of the cutting chamber 9 are outside the limit rod 101. It moves downward, squeezing and accumulating force on the reset spring 102. When the second magnet block 132 and the first magnet block 92 are separated, the cutting chamber 9 is automatically driven to rise by the accumulated force of the reset spring 102, so that the cutting chamber 9 can reciprocate up and down at a certain height. During the vibration, the material particles will be affected by the inertia force and it is difficult to approach the inner wall of the cutting chamber 9, thereby preventing the material particles from sticking to the inner wall of the cutting chamber 9. At the same time, the material stuck to the inner wall of the cutting chamber 9 can be shaken off, so it is convenient to clean the inner wall of the cutting chamber 9.

[0047] When the rotating rod 11 rotates, it will drive the fixed pipe 15 and the scraper 12 to rotate together. At this time, the scraper 12 can scrape off the materials adhered to the inner wall of the cutting chamber 9 when rotating, so it is convenient to clean the inner wall of the cutting chamber 9. A part of the water in the water inlet 51 enters the guide frame 14 through the water inlet pipe 52 and the guide pipe 141. At this time, the water in the guide frame 14 enters the storage chamber 111 through the through hole 112, and then the water in the storage chamber 111 enters the fixed pipe 15 through the four groups of first diversion pipes 154, and then the water in the fixed pipe 15 enters the water spray pipe 16 through the second diversion pipe 152. The water spray pipe 16 sprays water into the cutting chamber 9. The water flow sprayed by the water spray pipe 16 will form turbulence, which will produce impact force on the material close to the inner wall of the cutting chamber 9, thereby preventing the material from directly contacting and adhering to the inner wall of the cutting chamber 9.

[0048] When the cutting chamber 9 vibrates up and down, the cutting chamber 9 will apply a thrust to the scraper 12 at the corresponding position, and then the scraper 12 drives the piston column 151 to move into the fixed tube 15. At this time, the piston column 151 will apply pressure to the water in the fixed tube 15. Since both the first diversion tube 154 and the second diversion tube 152 are equipped with one-way valves, the water in the fixed tube 15 quickly enters the second diversion tube 152. Such repeated operations can increase the water flow velocity in the second diversion tube 152, thereby increasing the intensity of the turbulence formed by the water flow sprayed from the water spray pipe 16, thereby further preventing the material from sticking to the inner wall of the cutting chamber 9.

[0049] Embodiment 2: The underwater pelletizer with a cleaning mechanism in this embodiment discloses another structure of the vibration control assembly. The specific structure is shown in the attached Fig. 9 As shown, the vibration control assembly includes a push rod 133 installed at equal intervals on the outer side of the upper end of the vertical rod 13, a protrusion 93 is fixed on the upper left side of the cutting chamber 9, and the front and rear sides of the protrusion 93 are arranged in an inclined shape. The highest point of the protrusion 93 is higher than the lowest point of the push rod 133. When the rotating rod 11 rotates, it drives the vertical rod 13 to rotate through the bevel gear set. When the vertical rod 13 rotates, it drives the push rod 133 in the vibration control assembly to rotate, and then the six groups of push rods 133 contact the protrusion 93 in turn. Since the upper part of the protrusion 93 is arranged in an inclined shape, when the push rod 133 rotates to contact the protrusion 93, a downward thrust is applied to the protrusion 93, so that the protrusion 93 drives the cutting chamber 9 to move downward, so that the cutting chamber 9 can perform a certain height of up and down reciprocating vibration, thereby preventing material particles from adhering to the inner wall of the cutting chamber 9, and at the same time, the material adhering to the inner wall of the cutting chamber 9 can be shaken off, so that the inner wall of the cutting chamber 9 is convenient for cleaning.

[0050] Embodiment 3: The underwater pelletizer with a cleaning mechanism in this embodiment can increase the spraying range of the water spray pipe 16 on the basis of the embodiment 1, so as to further prevent the material from adhering to the inner wall of the cutting chamber 9. For the specific structure, refer to the attached Fig.10As shown, the mounting mechanism includes bearings mounted on the left and right ends of the water spray pipe 16, and the left and right ends of the water spray pipe 16 are respectively connected to the second shunt pipe 152 and the scraper 12 through the bearings. A vortex spring 161 is nested and connected to the outside of the right end of the water spray pipe 16, and a control rope 162 is wound and connected to the outside of the left end of the water spray pipe 16. The end of the control rope 162 away from the water spray pipe 16 is connected to the side of the fixed pipe 15 through a guide wheel. When the cutting chamber 9 applies a thrust to the scraper 12 at the corresponding position, the scraper 12 drives the piston column 151 to move into the fixed pipe 15. At this time, no tension is applied to the control rope 162, and the water spray pipe 1 will be automatically driven by the stored force of the vortex spring 161. 6 performs reverse rotation reset. When the cutting chamber 9 does not apply a thrust to the scraper 12 at the non-corresponding position, the piston column 151 will automatically move outward in the fixed tube 15 through the stored force of the connecting spring 153. At this time, the piston column 151 drives the scraper 12 to move outward. At this time, the control rope 162 will be pulled, and then one end of the control rope 162 drives the water spray pipe 16 to rotate at a certain angle. At the same time, the vortex spring 161 accumulates force, so that the water spray pipe 16 can be driven by the stored force of the vortex spring 161 to reciprocate and rotate to spray water at a certain angle in the later stage, thereby increasing the spraying range of the water spray pipe 16 and further preventing the material from sticking to the inner wall of the cutting chamber 9.

[0051] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An underwater pelletizer provided with a cleaning mechanism, comprising a supporting base plate (1), and a feeding frame (2) installed above the right side of the supporting base plate (1); A start valve (3) for controlling the flow of materials is installed through the upper interior of the feed frame (2); Features: A cutting chamber (9) is connected above the supporting base plate (1), and one end of a material conveying pipe (4) and a water pipe (5) respectively arranged above and below the cutting chamber (9) are connected to a filtering and drying assembly (8); A die head assembly (10) is installed inside the feed frame (2), a pelletizing motor (7) is slidably connected to the upper left side of the support base plate (1), the right end of the pelletizing motor (7) is connected to a rotating rod (11), the right end of the rotating rod (11) penetrates the interior of the connecting frame (6) and extends into the cutting chamber (9), and the right end of the rotating rod (11) is connected to a pelletizing blade (17) fitted on the left side of the die head assembly (10); A vibration control component for controlling the up and down vibration cleaning of the cutting chamber (9) is installed above the connection frame (6); The outer side of the rotating rod (11) is connected to a scraper (12) for auxiliary cleaning via a fixed tube (15); the outer side of the scraper (12) is in close contact with the inner wall of the cutting chamber (9); and the inner side of the scraper (12) is connected to a water spray pipe (16) for auxiliary cleaning via a mounting mechanism.

2. The underwater pelletizer provided with a cleaning mechanism according to claim 1, characterized in that: Two limiting rods (101) in a "T" shape are symmetrically mounted above the supporting base plate (1), and a return spring (102) is nested and connected to the outer side of the limiting rod (101); Limiting rods (101) are provided through the interior of both the front and rear sides of the cutting chamber (9); The left and right sides of the cutting chamber (9) are both provided with connecting ends (91) made of a hose material, and the left and right sides of the cutting chamber (9) are respectively connected to the connecting frame (6) and the feeding frame (2) through the connecting ends (91).

3. The underwater pelletizer provided with a cleaning mechanism according to claim 1, characterized in that: The left side of the die assembly (10) extends into the cutting chamber (9), and there is a distance between the outer side of the die assembly (10) and the inner wall of the cutting chamber (9); A water outlet (41) made of a hose material is fixedly penetrated in the upper right side of the cutting chamber (9), and a material conveying pipe (4) is connected above the water outlet (41); A water inlet (51) made of a hose material is fixedly penetrated in the lower right side of the cutting chamber (9), a water guide pipe (5) is connected below the water inlet (51), and a water inlet pipe (52) made of a hose material is connected to the left side of the water inlet (51).

4. The underwater pelletizer provided with a cleaning mechanism according to claim 1, characterized in that: A vertical rod (13) is rotatably connected to the upper interior of the connection frame (6), and the lower end of the vertical rod (13) is connected to the rotating rod (11) via a bevel gear set.

5. The underwater pelletizer provided with a cleaning mechanism according to claim 3, characterized in that: The interior of the fixed tube (15) is connected to a piston column (151) via a connecting spring (153); the outer side surface of the piston column (151) is closely connected to the inner wall of the fixed tube (15); a second diverter tube (152) is provided through the interior of the piston column (151); a scraper (12) having a triangular structure is fixed to the outer end of the piston column (151); one end of the second diverter tube (152) is connected to the water spray pipe (16); the other end of the second diverter tube (152) is inserted into the fixed tube (15); and a first diverter tube (154) is fixed through the interior of one end of the fixed tube (15) close to the rotating rod (11); One-way valves are installed in both the first shunt pipe (154) and the second shunt pipe (152).

6. The underwater pelletizer provided with a cleaning mechanism according to claim 5, characterized in that: A storage cavity (111) is provided inside the left end of the rotating rod (11); a circle of through holes (112) is provided on the outer side surface of the left end of the rotating rod (11); a flow guide frame (14) is rotatably installed through the outer side surface of the left end of the rotating rod (11); the flow guide frame (14) is connected to the connecting frame (6); the space inside the flow guide frame (14) is connected to the space inside the storage cavity (111) through the through hole (112); and the end of the first flow diversion pipe (154) away from the fixed pipe (15) is inserted into the storage cavity (111); A flow guide pipe (141) is fixed below the flow guide frame (14), and the lower end of the flow guide pipe (141) penetrates the lower surface of the connection frame (6) and is connected to the left end of the water inlet pipe (52).

7. The underwater pelletizer provided with a cleaning mechanism according to claim 1, characterized in that: The mounting mechanism comprises screws, and the water spray pipe (16) is connected to the scraper (12) via the screws.

8. The underwater pelletizer provided with a cleaning mechanism according to claim 4, characterized in that: The vibration control assembly comprises a horizontal plate (131) which is installed at equal intervals on the outer side of the upper end of the vertical rod (13), and a second magnet block (132) is installed below one end of the horizontal plate (131) away from the vertical rod (13); A first magnet block (92) is connected to the upper left side of the cutting chamber (9); the first magnet block (92) and the second magnet block (132) have the same magnetic poles; the lowest point of the second magnet block (132) is higher than the highest point of the first magnet block (92).

9. The underwater pelletizer provided with a cleaning mechanism according to claim 4, characterized in that: The vibration control assembly comprises a push rod (133) which is installed at equal intervals on the outer side of the upper end of the vertical rod (13); a protrusion (93) is fixed on the upper left side of the cutting chamber (9); and the front and rear sides of the protrusion (93) are both arranged in an inclined shape; The highest point of the projection (93) is higher than the lowest point of the push rod (133).

10. The underwater pelletizer provided with a cleaning mechanism according to claim 5, characterized in that: The mounting mechanism comprises bearings mounted on the left and right ends of the water spray pipe (16); the left and right ends of the water spray pipe (16) are respectively connected to the second diverter pipe (152) and the scraper (12) through the bearings; a vortex spring (161) is nested and connected to the outside of the right end of the water spray pipe (16); a control rope (162) is wound and connected to the outside of the left end of the water spray pipe (16); and one end of the control rope (162) away from the water spray pipe (16) is connected to the side of the fixed pipe (15) through a guide wheel.

Images