A cooling device capable of preventing plastic particles from sticking together

Abstract

The invention discloses a cooling device capable of preventing plastic particles from sticking together, and relates to the technical field of plastic particle production. The cooling device comprises a processing table, a granulator is fixedly installed on the top of the processing table, a fixing frame is fixedly installed on one side of the processing table close to the output end of the granulator, a cooling cylinder is fixedly installed on the inner wall of the fixing frame, a conveying pipe is fixedly installed on the output end of the granulator, one end of the conveying pipe away from the granulator is fixedly penetrated through the inner and outer walls of the cooling cylinder, an electromagnetic valve is fixedly installed on the bottom of the cooling cylinder, a refrigerator is fixedly penetrated through the inner and outer walls of the cooling cylinder, and a pretreatment device is also included, which temporarily receives plastic particles through a rectangular plate and drives the plastic particles to move to the bottom of the refrigerator, so as to ensure that the plastic particles are fully cooled and reduce the occurrence of sticking.

Description

Technical Field

[0001] The invention relates to the technical field of plastic particle production, in particular to a cooling device capable of preventing plastic particles from sticking. Background Art

[0002] Plastic pellets are a common basic form in plastic processing. They are usually produced by extrusion, injection or other molding processes. They have uniform size and shape, usually in spherical or granular form. These pellets can be further processed into various products during the plastic manufacturing process.

[0003] The patent with patent announcement number CN213732808U relates to a cooling device that can prevent plastic particles from sticking together, including a granulator and a cooling mechanism arranged on the granulator, wherein an anti-sticking mechanism is installed inside the cooling mechanism; the anti-sticking mechanism includes a controller, a first rotating rod, a limit bar, a second rotating rod, a spring and a separation box, and the controller is installed on the top surface of the cooling mechanism; the top end of the first rotating rod is connected to the bottom surface of the controller, and the bottom end of the first rotating rod extends to the interior of the cooling mechanism; the limit bar is installed at the bottom end of the first rotating rod, and the second rotating rod is connected to the bottom end of the limit bar, and a spring is arranged around the outer surface of the limit bar, one end of the spring is connected to the outer surface of the second rotating rod, and the other end of the spring is connected to the outer surface of the first rotating rod. Through the setting of the anti-sticking mechanism, this patent can effectively prevent the plastic particles after granulation from sticking together, thereby achieving a better anti-sticking effect.

[0004] In the above patent, the effect of preventing plastic particles from sticking together during the cooling process is achieved. The separation box is rotated by the action of the spring to vibrate in a small range, so that the plastic particles inside the separation box are discharged from the filter holes, which can effectively prevent the plastic particles after granulation from sticking together, thereby achieving a better anti-sticking effect. However, when the plastic particles at the bottom layer of the cooling cylinder have not been completely cooled, subsequent plastic particles will continue to enter the cooling cylinder. These newly entered plastic particles will cover the bottom layer of plastic particles, hindering the effective cooling of the bottom layer of plastic particles. The bottom layer of plastic particles is covered before it is completely cooled, and their sticky state causes the plastic particles to stick to each other and form lumps, which eventually leads to the blockage of the outlet of the cooling cylinder, affecting the consistency of subsequent processing. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a cooling device capable of preventing plastic particles from sticking together, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the present invention is implemented through the following technical solutions: a cooling device that can prevent plastic particles from sticking together, comprising a processing table, a granulator is fixedly installed on the top of the processing table, a fixing frame is fixedly installed on a side of the processing table close to the output end of the granulator, a cooling cylinder is fixedly installed on the inner wall of the fixing frame, a conveying pipe is fixedly installed on the output end of the granulator, and one end of the conveying pipe away from the granulator is fixedly penetrated through the inner and outer walls of the cooling cylinder, raw materials are poured into the granulator, the granulator is started, the output end of the granulator discharges plastic particles, and the plastic particles move to the inside of the cooling cylinder through the conveying pipe, an electromagnetic valve is fixedly installed on the bottom of the cooling cylinder, and a refrigerator is fixedly penetrated through the inner and outer walls of the cooling cylinder, and also includes a pretreatment device; wherein, the pretreatment device includes a driving motor, a long rod, a loading plate, a rotating rod, a connecting block, a hollow ring, a rectangular plate, an elastic sheet, a contact plate and a round rod, the driving motor is started, the driving motor The output end of the machine drives the long rod to rotate counterclockwise, and the rotation of the long rod drives the loading plate to rotate counterclockwise, the driving motor is fixedly passed through the top of the cooling cylinder, the long rod is fixedly installed at the output end of the driving motor, the loading plate is fixedly installed at the bottom of the long rod, the rotating rod rotates and passes through the inner and outer walls of the loading plate, the connecting block is sleeved on the side of the rotating rod away from the loading plate, the hollow ring is fixedly passed through the inner wall of the cooling cylinder, the inner wall of the hollow ring is provided with a rectangular groove, the rectangular plate is fixedly installed on the circumferential surface of the rotating rod, the elastic sheet is fixedly installed on the inner wall of the rectangular plate, the contact plate is fixedly installed on the circumferential surface of the rotating rod, the round rod is fixedly installed inside the rectangular groove, the rectangular plate moves and drives the plastic particles to move in the direction of the round rod, and at the same time, the rectangular plate moves and drives the plastic particles to move to the bottom of the output end of the refrigerator, the inner wall of the hollow ring is provided with a sliding groove, and the end of the connecting block away from the rotating rod is slidably installed inside the sliding groove.

[0007] According to the above technical solution, a No. 1 volute spring is arranged between the rotating rod and the loading plate. The rotating rod stretches the No. 1 volute spring during rotation, and the No. 1 volute spring is deformed due to the stretching. A docking groove is opened at the bottom of the connecting block.

[0008] According to the above technical solution, the elastic sheet is provided with an arc surface 1 on one side away from the rectangular disk. The plastic particles contact the arc surface 1 of the elastic sheet during the descending process. The elastic sheet is slightly deformed by the impact force exerted by the plastic particles. A semicircular groove is provided on the contact plate.

[0009] According to the above technical scheme, it also includes a stirring device and a protective device; the stirring device includes a supporting frame, a cross turntable, a telescopic rod, a No. 1 spring, a cylindrical block, a carrying plate, a docking rod and a scraper, the scraper moves to drive the carrying plate to move in the direction of the cross turntable, and the carrying plate moves to drive the docking rod to move in the direction of the cross turntable, the supporting frame is fixedly installed on the bottom of the inner wall of the cooling cylinder, the cross turntable is rotatably installed on the circumferential surface of the supporting frame, the telescopic rod rotates and passes through a side of the cross turntable away from the supporting frame, the No. 1 spring is arranged between the telescopic rod and the cross turntable, the cylindrical block is fixedly installed on the circumferential surface of the telescopic rod, the carrying plate is fixedly installed on a side of the telescopic rod away from the cross turntable, the docking rod is fixedly installed on the top of the carrying plate, the scraper is fixedly installed on a side of the carrying plate away from the telescopic rod, the docking rod contacts the inner wall of the docking groove, and during the movement of the connecting block, the docking groove applies a thrust to the docking rod, and the docking rod moves under the influence of the thrust.

[0010] According to the above technical solution, a hole groove is provided on the top of the cross turntable, the cylindrical block contacts the inner wall of the hole groove, and a second arc surface is provided on the side of the scraper away from the mounting plate. The second arc surface of the scraper contacts the plastic particles close to the inner wall of the cooling cylinder during movement, and the movement of the second arc surface drives the plastic particles close to the inner wall of the cooling cylinder to move.

[0011] According to the above technical scheme, the protective device includes a fixed frame, a sliding rod, a Z-shaped piece, a linkage plate, a rotating shaft, a plurality of rotating pieces and an inclined plate. The fixed frame is fixedly installed on the top of the cross turntable, the sliding rod slides through the inner wall of the fixed frame, the Z-shaped piece is arranged between the sliding rod and the fixed frame, the linkage plate is fixedly installed on the side of the sliding rod close to the cylindrical block, the rotating shaft is fixedly installed on the inner wall of the fixed frame, a plurality of rotating pieces are rotatably installed on the circumferential surface of the rotating shaft, the inclined plate is fixedly installed on the top of the inner wall of the fixed frame, the Z-shaped piece itself is elastic, a groove is provided on the side of the linkage plate away from the rotating shaft, the groove contacts the circumferential surface of the cylindrical block, when the cylindrical block moves toward the fixed frame, the cylindrical block applies a thrust to the groove, the linkage plate moves toward the fixed frame under the influence of the thrust, and the rotating piece itself is elastic.

[0012] According to the above technical solution, the rotating plate is symmetrically distributed with the linkage plate as the axis, and a No. 2 spiral spring is arranged between the rotating plate and the rotating shaft. The No. 2 spiral spring is deformed by stretching. When the contact surface between the sliding rod and the rotating plate is separated, the deformed No. 2 spiral spring is restored under the action of its own elasticity.

[0013] According to the above technical solution, a third arc surface is provided on one side of the inclined plate close to the rotating plate, and the third arc surface contacts the side of the rotating plate close to the slide rod. The No. 2 scroll spring restores and drives the rotating plate to rotate quickly to the initial position. The rotating plate collides with the third arc surface during rotation to generate vibration.

[0014] The present invention provides a cooling device capable of preventing plastic particles from sticking together. The device has the following beneficial effects:

[0015] (1) The cooling device can prevent plastic particles from sticking together. The elastic sheet is slightly deformed by the impact force exerted by the plastic particles. The hollow ring provides support force to stabilize the moving rotating rod, which helps to reduce the burden on the driving motor. At the same time, the elastic sheet is used to reduce the damage or deformation caused by the plastic particles during the contact process. The rectangular plate drives the plastic particles to move to the bottom of the refrigerator, so that the plastic particles are fully cooled. The rectangular plate briefly receives the plastic particles and drives the plastic particles to move to the bottom of the refrigerator, ensuring that the plastic particles are fully cooled and reducing the occurrence of sticking.

[0016] (2) The cooling device can prevent plastic particles from sticking together. The movement of the second arc surface drives the plastic particles close to the inner wall of the cooling cylinder to move. The movement of the telescopic rod and the scraper blade improves the fluidity of the plastic particles inside the cooling cylinder, ensuring that the plastic particles inside the cooling cylinder are evenly in contact with the cold medium, thereby improving the cooling effect. The scraper blade moves toward the cross turntable due to the resistance exerted by the plastic particles. When the scraper blade encounters firmly adhered plastic particles, it moves toward the cross turntable, reducing the failure of the scraper blade due to excessive pressure or impact during forced scraping, thereby improving the overall operation stability.

[0017] (3) The cooling device that can prevent plastic particles from sticking together, the rotating sheet and the inclined plate collide continuously, so that the scraper continuously vibrates the firmly adhered plastic particles during movement. The continuous vibration generated by the intermittent collision between the rotating sheet and the inclined plate effectively loosens the firmly adhered plastic particles, making it convenient for the scraper to directly separate them when it contacts them for the second time. The rotating sheet is blocked from rotating toward the inclined plate, so that the slide bar moves to squeeze the rotating sheet. The rotating sheet can only collide and generate vibration after it rotates in the direction away from the inclined plate, which helps to ensure that the vibration is accurately applied to the firmly adhered plastic particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the cooling cylinder of the present invention;

[0020] Figure 3 It is a schematic diagram of the position structure of the docking groove and the docking rod of the present invention;

[0021] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0022] Figure 5 This is a schematic diagram of the internal structure of the pretreatment device of the present invention;

[0023] Figure 6 It is a schematic diagram of the internal structure of the stirring device of the present invention;

[0024] Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle;

[0025] Figure 8 It is a schematic diagram of the internal structure of the protective device of the present invention.

[0026] In the figure: 1, processing table; 2, granulator; 3, fixed frame; 4, cooling cylinder; 5, conveying pipe; 6, solenoid valve; 7, refrigerator; 8, driving motor; 9, long rod; 10, loading plate; 11, rotating rod; 12, connecting block; 13, hollow ring; 14, rectangular plate; 15, elastic sheet; 16, contact plate; 17, round rod; 181, supporting frame; 182, cross turntable; 183, telescopic rod; 184, No. 1 spring; 185, cylindrical block; 186, carrying plate; 187, docking rod; 188, scraper; 191, fixed frame; 192, sliding rod; 193, Z-shaped sheet; 194, linkage plate; 195, rotating shaft; 196, rotating sheet; 197, inclined plate. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-Figure 5, one embodiment of the present invention is: a cooling device capable of preventing plastic particles from sticking together, comprising a processing table 1, a granulator 2 is fixedly mounted on the top of the processing table 1, a fixing frame 3 is fixedly mounted on one side of the processing table 1 close to the output end of the granulator 2, a cooling cylinder 4 is fixedly mounted on the inner wall of the fixing frame 3, a conveying pipe 5 is fixedly mounted on the output end of the granulator 2, one end of the conveying pipe 5 away from the granulator 2 is fixedly penetrated through the inner and outer walls of the cooling cylinder 4, a solenoid valve 6 is fixedly mounted on the bottom of the cooling cylinder 4, a refrigerator 7 is fixedly penetrated through the inner and outer walls of the cooling cylinder 4, and a pre-treatment device is also included; wherein the pre-treatment device comprises a driving motor 8, a long rod 9, a loading disc 10, a rotating rod 11, a connecting block 12, a hollow ring 13, a rectangular disc 14, an elastic sheet 15, a contact plate 16 and a round rod 17, the driving motor 8 is fixedly penetrated through the top of the cooling cylinder 4, the long rod 9 is fixedly mounted on the driving motor At the output end of the machine 8, the loading disk 10 is fixedly installed at the bottom of the long rod 9, the rotating rod 11 rotates and penetrates the inner and outer walls of the loading disk 10, the connecting block 12 is sleeved on the side of the rotating rod 11 away from the loading disk 10, the hollow ring 13 is fixedly installed on the inner wall of the cooling cylinder 4, and the inner wall of the hollow ring 13 is provided with a rectangular groove, the rectangular disk 14 is fixedly installed on the circumferential surface of the rotating rod 11, the elastic sheet 15 is fixedly installed on the inner wall of the rectangular disk 14, the contact plate 16 is fixedly installed on the circumferential surface of the rotating rod 11, the round rod 17 is fixedly installed inside the rectangular groove, and the inner wall of the hollow ring 13 is provided with a slide groove, and the end of the connecting block 12 away from the rotating rod 11 is slidably installed inside the slide groove, and the hollow ring 13 provides support force for the moving rotating rod 11, which helps to reduce the burden on the drive motor 8, and at the same time, the elastic sheet 15 is used to reduce the damage or deformation of the plastic particles during the contact process.

[0029] A No. 1 volute spring is arranged between the rotating rod 11 and the loading plate 10, and a docking groove is provided at the bottom of the connecting block 12. By arranging the No. 1 volute spring, it is ensured that the rotating rod 11 can smoothly return to the initial position after rotation to carry out the next work, which helps to improve the overall stability.

[0030] The elastic sheet 15 has an arc surface on one side away from the rectangular plate 14, and a semicircular groove is formed on the contact plate 16. The plastic particles are temporarily received through the rectangular plate 14 and driven to move to the bottom of the refrigerator 7 to ensure that the plastic particles are fully cooled and reduce the occurrence of bonding.

[0031] When the present embodiment is working, the refrigerator 7 is started, and the output end of the refrigerator 7 delivers cold air to the interior of the cooling cylinder 4, the raw materials are poured into the granulator 2, the granulator 2 is started, and the output end of the granulator 2 discharges plastic particles, and the plastic particles move to the interior of the cooling cylinder 4 through the conveying pipe 5, and the driving motor 8 is started, and the output end of the driving motor 8 drives the long rod 9 to rotate counterclockwise, and the rotation of the long rod 9 drives the loading plate 10 to rotate counterclockwise, and the rotation of the loading plate 10 drives the rotating rod 11 to move toward the round rod 17, and the movement of the rotating rod 11 drives the connecting block 12 to move toward the round rod 17, and the hollow ring 13 applies a supporting force to the moving connecting block 12 through the slide groove, and at the same time, the rotating rod The movement of 11 drives the rectangular plate 14 to move toward the round rod 17, and the movement of the rectangular plate 14 drives the elastic sheet 15 to move toward the round rod 17. When the plastic particles are separated from the conveying tube 5, they move downward under the influence of their own gravity. During the descent, the plastic particles contact the arc surface 1 of the elastic sheet 15. The elastic sheet 15 is slightly deformed by the impact force applied by the plastic particles. The deformed elastic sheet 15 recovers under the action of its own elasticity. The plastic particles move to the inside of the rectangular plate 14 under the guidance of the arc surface 1. The hollow ring 13 provides support force to stabilize the moving rotating rod 11, which helps to reduce the burden of the driving motor 8. At the same time, the elastic sheet 15 is used to reduce the pressure of the plastic particles. The particles are damaged or deformed during the contact process. The rectangular disk 14 moves and drives the plastic particles to move toward the round rod 17. At the same time, the rectangular disk 14 moves and drives the plastic particles to move to the bottom of the output end of the refrigerator 7, so that the plastic particles in the rectangular disk 14 are fully cooled. The rotating rod 11 moves and drives the contact plate 16 to move toward the round rod 17. The semicircular groove of the contact plate 16 contacts the circumferential surface of the round rod 17 during the movement. The round rod 17 blocks the moving contact plate 16, so that the contact plate 16 is affected by the resistance and rotates in the direction away from the round rod 17. The rotation of the contact plate 16 drives the rotating rod 11 to rotate in the direction away from the round rod 17. The rod 11 rotates to stretch the No. 1 scroll spring, which is deformed due to the stretching. At the same time, the rotating rod 11 rotates to drive the rectangular disk 14 to rotate in the direction away from the round rod 17. As the rotation angle of the rectangular disk 14 increases, the plastic particles lose the support of the rectangular disk 14 and fall to the bottom of the inner wall of the cooling cylinder 4. After the contact plate 16 and the round rod 17 are separated, the deformed No. 1 scroll spring recovers under the action of its own elasticity. The recovery of the No. 1 scroll spring drives the rotating rod 11 to rotate to its initial position, briefly receives the plastic particles through the rectangular disk 14, and drives the plastic particles to move to the bottom of the refrigerator 7, ensuring that the plastic particles are fully cooled and reducing the occurrence of sticking.

[0032] See also Figure 1-Figure 8On the basis of the above embodiment, another embodiment of the present invention further includes a stirring device and a protective device; the stirring device includes a support frame 181, a cross turntable 182, a telescopic rod 183, a No. 1 spring 184, a cylindrical block 185, a mounting plate 186, a docking rod 187 and a scraper 188, the support frame 181 is fixedly mounted on the bottom of the inner wall of the cooling cylinder 4, the cross turntable 182 is rotatably mounted on the circumferential surface of the support frame 181, the telescopic rod 183 rotates and penetrates a side of the cross turntable 182 away from the support frame 181, and the No. 1 spring 184 is arranged on the telescopic rod 1 83 and the cross turntable 182, the cylindrical block 185 is fixedly mounted on the circumferential surface of the telescopic rod 183, the carrying plate 186 is fixedly mounted on the side of the telescopic rod 183 away from the cross turntable 182, the docking rod 187 is fixedly mounted on the top of the carrying plate 186, and the scraper 188 is fixedly mounted on the side of the carrying plate 186 away from the telescopic rod 183. The docking rod 187 contacts the inner wall of the docking groove. The movement of the telescopic rod 183 and the scraper 188 improves the fluidity of the plastic particles, ensuring that the plastic particles inside the cooling cylinder 4 are evenly in contact with the cold medium, thereby improving the cooling effect.

[0033] A hole groove is provided at the top of the cross turntable 182, and the cylindrical block 185 contacts the inner wall of the hole groove. A second arc surface is provided on the side of the scraper 188 away from the mounting plate 186. When the scraper 188 encounters firmly adhered plastic particles, it moves toward the cross turntable 182, thereby reducing the risk of failure of the scraper 188 due to excessive pressure or impact during forced scraping, thereby improving the stability of the overall operation.

[0034] The protective device includes a fixed frame 191, a slide bar 192, a Z-shaped piece 193, a linkage plate 194, a rotating shaft 195, a plurality of rotating pieces 196 and an inclined plate 197. The fixed frame 191 is fixedly mounted on the top of the cross turntable 182, the slide bar 192 slides through the inner wall of the fixed frame 191, the Z-shaped piece 193 is arranged between the slide bar 192 and the fixed frame 191, the linkage plate 194 is fixedly mounted on a side of the slide bar 192 close to the cylindrical block 185, and the rotating shaft 195 is fixedly mounted on the inner wall of the fixed frame 191. A plurality of rotating sheets 196 are rotatably mounted on the circumferential surface of the rotating shaft 195, and the inclined plate 197 is fixedly mounted on the top of the inner wall of the fixed frame 191. The Z-shaped sheet 193 itself is elastic, and a groove is provided on the side of the linkage plate 194 away from the rotating shaft 195, and the groove contacts the circumferential surface of the cylindrical block 185. The rotating sheet 196 itself is elastic, and the rotating sheet 196 can only collide with the inclined plate 197 to generate vibration after rotating in a direction away from the inclined plate 197, which helps to ensure that the vibration is accurately applied to the firmly adhered plastic particles.

[0035] The rotating plate 196 is symmetrically distributed with the linkage plate 194 as the axis. A second volute spring is arranged between the rotating plate 196 and the rotating shaft 195. The second volute spring is arranged to provide kinetic energy for the rotating plate 196 to quickly reset, ensuring that the rotating plate 196 can collide with the inclined plate 197 during the reset process.

[0036] A third arc surface is provided on one side of the inclined plate 197 close to the rotating piece 196, and the third arc surface contacts a side of the rotating piece 196 close to the slide bar 192. The continuous vibration generated by the intermittent collision between the rotating piece 196 and the inclined plate 197 can effectively loosen the firmly adhered plastic particles, making it easier for the scraper 188 to effectively detach when it contacts next time.

[0037] When the present embodiment is working, during the movement of the connecting block 12, the docking groove applies a thrust to the docking rod 187, and the docking rod 187 moves under the influence of the thrust, and the movement of the docking rod 187 drives the carrying plate 186 to move, and the movement of the carrying plate 186 drives the telescopic rod 183 to move, and the movement of the telescopic rod 183 drives the cross turntable 182 to rotate, and at the same time, the telescopic rod 183 stirs the plastic particles inside the cooling cylinder 4 during the movement, and the movement of the carrying plate 186 drives the scraper 188 to move, and the arc surface 2 of the scraper 188 contacts the plastic particles close to the inner wall of the cooling cylinder 4 during the movement, and the movement of the arc surface 2 drives the plastic particles close to the inner wall of the cooling cylinder 4 to move, and the fluidity of the plastic particles is improved by the movement of the telescopic rod 183 and the scraper 188, ensuring that the plastic particles inside the cooling cylinder 4 are evenly in contact with the cold medium, thereby improving the cooling effect, and when the arc surface 2 contacts the firmly adhered plastic particles, the scraper 188 is subjected to the resistance exerted by the plastic particles and moves toward the cross turntable 182, and the movement of the scraper 188 drives the carrying plate 186 The carrying plate 186 moves toward the cross turntable 182, the carrying plate 186 moves to drive the docking rod 187 to move toward the cross turntable 182, the docking rod 187 moves inside the docking slot, and at the same time the carrying plate 186 moves to drive the telescopic rod 183 to move toward the cross turntable 182, the telescopic rod 183 moves to squeeze the No. 1 spring 184, the No. 1 spring 184 is squeezed and deformed, when the arc surface 2 is separated from the firmly adhered plastic particles, the deformed No. 1 spring 184 is restored under the action of its own elasticity, and the No. 1 spring 184 is compressed and deformed. The spring 184 is restored to drive the telescopic rod 183 to move away from the cross-shaped rotating disk 182, and the movement of the telescopic rod 183 drives the carrying plate 186 to move away from the cross-shaped rotating disk 182, and the movement of the carrying plate 186 drives the docking rod 187 and the scraper 188 to move away from the cross-shaped rotating disk 182. When the scraper 188 encounters firmly adhered plastic particles, it moves toward the cross-shaped rotating disk 182, thereby reducing the failure of the scraper 188 due to excessive pressure or impact during forced scraping, thereby improving the stability of the overall operation;

[0038] When the cylindrical block 185 moves toward the fixed frame 191, the cylindrical block 185 applies a thrust to the groove, and the linkage plate 194 is affected by the thrust and moves toward the fixed frame 191. The movement of the linkage plate 194 drives the slide bar 192 to move toward the fixed frame 191. The slide bar 192 squeezes the Z-shaped piece 193 during the movement, and the Z-shaped piece 193 is squeezed and deformed. At the same time, the slide bar 192 contacts the side of the rotating piece 196 close to the inclined plate 197 when moving. The movement of the slide bar 192 applies a thrust to the rotating piece 196, and the rotating piece 196 moves away under the action of the thrust. The rotating piece 196 rotates in the direction away from the inclined plate 197, and the rotating piece 196 is separated from the arc surface three when rotating. At the same time, the rotating piece 196 rotates to stretch the second scroll spring. The second scroll spring is stretched and deformed. When the sliding rod 192 is separated from the contact surface of the rotating piece 196, the deformed second scroll spring is restored under the action of its own elasticity. The restoration of the second scroll spring drives the rotating piece 196 to rotate quickly to the initial position. The rotating piece 196 collides with the arc surface three during rotation to generate vibration. The linkage plate 194 transmits the vibration to the cylindrical block 185. Since the rotating piece 196 and the inclined plate 19 7 continuously collides, so that the scraper 188 continuously vibrates the firmly adhered plastic particles during movement, and the continuous vibration generated by the intermittent collision between the rotating piece 196 and the inclined plate 197 effectively loosens the firmly adhered plastic particles, so that the scraper 188 can effectively detach when it contacts next time. When the cylindrical block 185 is reset, the thrust received by the linkage plate 194 gradually decreases, and the deformed Z-shaped piece 193 recovers under the action of its own elasticity. The recovery of the Z-shaped piece 193 drives the slide bar 192 to move away from the fixed frame 191. When the slide bar 192 moves The surface of the rotating piece 196 that is away from the inclined plate 197 is in contact, and the rotating piece 196 is blocked from rotating toward the inclined plate 197, so that the slide bar 192 continues to move and squeeze the rotating piece 196. The rotating piece 196 is squeezed and deformed. When the slide bar 192 and the rotating piece 196 are separated, the pressure on the rotating piece 196 gradually decreases, so that the rotating piece 196 recovers under the action of its own elasticity. The rotating piece 196 can only collide and generate vibration after it rotates in the direction away from the inclined plate 197, which helps to ensure that the vibration is accurately applied to the firmly adhered plastic particles.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling device for preventing plastic particles from sticking together, comprising a processing table (1), characterized in that: A granulator (2) is fixedly mounted on the top of the processing table (1); a fixing frame (3) is fixedly mounted on one side of the processing table (1) close to the output end of the granulator (2); a cooling cylinder (4) is fixedly mounted on the inner wall of the fixing frame (3); a conveying pipe (5) is fixedly mounted on the output end of the granulator (2); an end of the conveying pipe (5) away from the granulator (2) is fixedly penetrated through the inner and outer walls of the cooling cylinder (4); a solenoid valve (6) is fixedly mounted on the bottom of the cooling cylinder (4); a refrigerator (7) is fixedly penetrated through the inner and outer walls of the cooling cylinder (4); and a pretreatment device, a stirring device and a protective device are also included; The pretreatment device comprises a driving motor (8), a long rod (9), a loading plate (10), a rotating rod (11), a connecting block (12), a hollow ring (13), a rectangular plate (14), an elastic sheet (15), a contact plate (16) and a round rod (17), wherein the driving motor (8) is fixedly inserted through the top of the cooling cylinder (4), the long rod (9) is fixedly mounted on the output end of the driving motor (8), the loading plate (10) is fixedly mounted on the bottom of the long rod (9), the rotating rod (11) is rotatably inserted through the inner and outer walls of the loading plate (10), and the connecting block (12) is sleeved on the rotating rod (11). ) is disposed on a side away from the loading plate (10), the hollow ring (13) is fixedly penetrated through the inner wall of the cooling cylinder (4), a rectangular groove is provided on the inner wall of the hollow ring (13), the rectangular plate (14) is fixedly mounted on the circumferential surface of the rotating rod (11), the elastic sheet (15) is fixedly mounted on the inner wall of the rectangular plate (14), the contact plate (16) is fixedly mounted on the circumferential surface of the rotating rod (11), the round rod (17) is fixedly mounted inside the rectangular groove, a sliding groove is provided on the inner wall of the hollow ring (13), and the end of the connecting block (12) away from the rotating rod (11) is slidably mounted inside the sliding groove; The stirring device comprises a support frame (181), a cross turntable (182), a telescopic rod (183), a No. 1 spring (184), a cylindrical block (185), a mounting plate (186), a docking rod (187) and a scraper (188), wherein the support frame (181) is fixedly mounted on the bottom of the inner wall of the cooling cylinder (4), the cross turntable (182) is rotatably mounted on the circumferential surface of the support frame (181), the telescopic rod (183) is rotatably penetrated through a side of the cross turntable (182) away from the support frame (181), and the No. 1 spring (184) is disposed on the support frame (181). The spring (184) is arranged between the telescopic rod (183) and the cross turntable (182); the cylindrical block (185) is fixedly mounted on the circumferential surface of the telescopic rod (183); the carrying plate (186) is fixedly mounted on a side of the telescopic rod (183) away from the cross turntable (182); the docking rod (187) is fixedly mounted on the top of the carrying plate (186); the scraper (188) is fixedly mounted on a side of the carrying plate (186) away from the telescopic rod (183); and the docking rod (187) contacts the inner wall of the docking groove; The protective device comprises a fixed frame (191), a sliding rod (192), a Z-shaped piece (193), a linkage plate (194), a rotating shaft (195), a plurality of rotating pieces (196) and an inclined plate (197); the fixed frame (191) is fixedly mounted on the top of the cross turntable (182); the sliding rod (192) slides through the inner wall of the fixed frame (191); the Z-shaped piece (193) is arranged between the sliding rod (192) and the fixed frame (191); and the linkage plate (194) is fixedly mounted on the sliding rod (192). The rotating shaft (195) is fixedly mounted on a side close to the cylindrical block (185) on the inner wall of the fixed frame (191); a plurality of rotating plates (196) are rotatably mounted on the circumferential surface of the rotating shaft (195); the inclined plate (197) is fixedly mounted on the top of the inner wall of the fixed frame (191); the Z-shaped plate (193) itself is elastic; a groove is formed on a side of the linkage plate (194) away from the rotating shaft (195); the groove contacts the circumferential surface of the cylindrical block (185); and the rotating plates (196) themselves are elastic.

2. A cooling device capable of preventing plastic particles from sticking together according to claim 1, characterized in that: A first scroll spring is provided between the rotating rod (11) and the loading plate (10), and a docking groove is provided at the bottom of the connecting block (12).

3. A cooling device capable of preventing plastic particles from sticking together according to claim 2, characterized in that: A curved surface 1 is provided on a side of the elastic sheet (15) away from the rectangular disk (14), and a semicircular groove is provided on the contact plate (16).

4. A cooling device capable of preventing plastic particles from sticking together according to claim 3, characterized in that: A hole groove is formed on the top of the cross turntable (182), the cylindrical block (185) contacts the inner wall of the hole groove, and a second arc surface is formed on a side of the scraper (188) away from the mounting plate (186).

5. A cooling device capable of preventing plastic particles from sticking together according to claim 4, characterized in that: The rotating plates (196) are symmetrically distributed with the linkage plate (194) as the axis, and a second spiral spring is provided between the rotating plates (196) and the rotating shaft (195).

6. A cooling device capable of preventing plastic particles from sticking together according to claim 5, characterized in that: A third arc surface is formed on a surface of the inclined plate (197) close to the rotating plate (196), and the third arc surface is in contact with a surface of the rotating plate (196) close to the sliding rod (192).

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