A waste plastic blow molding equipment

Abstract

The application discloses a kind of waste plastics blow molding equipment, it is related to waste plastics blow molding technical field, the present application, including: long frame, the long frame top surface is provided with air pump, the long frame top surface left side is fixed with cylinder and is penetrated, the liquid inlet is formed in the right side top of cylinder, the top end of cylinder inside is opened with several air holes, and the top end of cylinder inside is penetrated and is rotatably installed with round pipe;Screw rod, the screw rod is slidably installed in the inner wall of round pipe, and round pipe limits the vertical motion of screw rod, the vibration of hemispherical column knock is transmitted to spiral in the present application, when rotating and stirring waste plastics melt, the rotating blade of screw rod will bubble in waste plastics melt be shaken upwards, so as to avoid that waste plastics melt in molten state contains more bubbles, the problem that the effect of blow molding waste plastics of blow molding equipment is poor due to the uneven thickness of waste plastics melt in mold.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of waste plastic blow molding, and particularly relates to a waste plastic blow molding equipment. BACKGROUND

[0002] The blow molding equipment is used for converting molten plastic into various hollow plastic products, and the waste plastic blow molding equipment is mainly used for heating and melting waste plastic particles, injecting the waste plastic particles into a mold through an injection mode, injecting air into the mold, expanding the waste plastic in a molten state by using air pressure and making the waste plastic in the molten state adhere to the inner wall of the mold, demolding after cooling and setting, producing a finished product, and realizing cost reduction and efficiency increase, so that the waste plastic has a high recycling value.

[0003] The patent with the publication number CN116714224B discloses a plastic blow molding equipment, and relates to the field of plastic product production, comprising a blow molding machine main body; a control panel is fixedly connected to the left surface of the blow molding machine main body, a plastic feeding hopper is installed at the rear left side of the blow molding machine main body, a discharge plate is arranged at the front of the blow molding machine main body, and a blow molding mechanism is installed at the front inside of the blow molding machine main body; the blow molding mold in the blow molding device in the patent can be replaced, the same blow molding device can be used to process plastic products with different structures, the blow molding mold is convenient to disassemble and install, is conducive to rapid replacement, is conducive to maintenance and maintenance of the blow molding device, and solves the problem that different blow molding molds need to be used when the existing blow molding device is used to blow mold plastic products with different structures, the molds are generally fixedly installed on the blow molding equipment through connecting pieces such as bolts, and it is not easy to replace molds with different structures, and the cooling system in the mold is prone to leakage when the mold is replaced.

[0004] The above device still has the following problems: during the blow molding process of the waste plastic blow molding equipment, the waste plastic melt in a molten state needs to be stirred and injected into the mold, so that the waste plastic melt in the molten state uniformly adheres to the inner wall of the mold. Since the waste plastic melt in the molten state contains many bubbles, the waste plastic melt in the molten state is not uniformly thick and thin in the mold during blow molding, which leads to the problem that the blow molding effect of the blow molding equipment on the waste plastic is poor. SUMMARY

[0005] The application aims to provide a waste plastic blow molding equipment to solve the problem that the waste plastic melt in the molten state contains many bubbles, the waste plastic melt in the molten state is not uniformly thick and thin in the mold, and the blow molding effect of the blow molding equipment on the waste plastic is poor.

[0006] In order to achieve the above-mentioned purpose, the application provides a waste plastic blow molding equipment, which comprises: A long frame, with an air pump installed on the top surface of the long frame, a cylinder passing through and fixed on the left side of the top surface of the long frame, a liquid inlet opening on the upper right side of the cylinder, several air holes opening at the top inside the cylinder, and a cylindrical tube passing through and rotatably installed at the top inside the cylinder. A helical rod is slidably mounted on the inner wall of a circular tube, and the circular tube restricts the vertical movement of the helical rod. The interior of the helical rod has a hollow structure, and the outer wall of the air pipe of the air pump is rotatably connected to the inner wall of the circular tube. A nozzle is provided, which is slidably mounted inside the bottom of a cylinder. A spring is provided between the top of the nozzle and the bottom of the cylinder. The bottom of the spiral rod is rotatably mounted inside the bottom of the nozzle. A ring block, which is fixed above the inner wall of the cylinder, and the inner wall of the ring block is provided with a plurality of arc blocks; An annular hole block is fixed above the outer wall of a circular tube. The outer wall of the annular hole block has several circular holes. A hemispherical column is slidably mounted on the inner wall of each circular hole. A spring is installed between the outer wall of each hemispherical column and the inner wall of each circular hole in the annular hole block. During rotation, the hemispherical column contacts an arc block on the annular block, striking the arc block and retracting into the circular hole of the annular hole block. The spring on the hemispherical column contracts. When the hemispherical column leaves the arc block, under the elastic force of the spring, it pops out of the circular hole of the annular hole block, causing it to repeatedly strike the arc block.

[0007] According to another advantageous design of the invention, it further includes: Drive component one is located on the left side of the top surface of the long frame. Drive component one includes: a U-shaped frame, a servo motor and two gears. The U-shaped frame is fixed on the left side of the top surface of the long frame. The servo motor is fixedly installed inside the top of the U-shaped frame. The left gear is fixed on the bottom surface of the output shaft of the servo motor. The right gear is fixed on the top of the circular tube. The outer walls of the two gears mesh with each other. Drive component two drives the circular tube to rotate forward. The circular tube rotates forward in the cylinder. The circular tube rotates forward on the air pipe of the air pump. The circular tube drives the screw rod to rotate forward. The screw rod rotates forward in the nozzle. Drive component one is used to drive the circular tube to rotate. Drive component two is disposed on the outer wall of the cylinder. Drive component two includes: a wide frame, an electric telescopic rod two, and an L-shaped plate. The wide frame is fixed to the outer wall of the cylinder. The electric telescopic rod two passes through and is fixed to the left side of the top surface of the wide frame. The L-shaped plate is fixed to the bottom surface of the telescopic end of the electric telescopic rod two and is fixed below the outer wall of the nozzle. Drive component one drives the nozzle to move downward. The nozzle slides downward in the cylinder. Spring one on the nozzle contracts. The nozzle drives the spiral rod to move downward. The spiral rod slides downward in the cylinder. The nozzle enters the cavity one and cavity two. Drive component two is used to drive the nozzle to move downward.

[0008] According to another advantageous design of the invention, it further includes: The frame has a hot melt box at its bottom. The hot melt box has a material inlet on its top surface and a liquid pump on its top surface. A liquid pipe is installed on the top surface of the liquid pump. The end of the liquid pipe away from the liquid pump is fixedly connected to the inner wall of the liquid inlet of the cylinder. The hot melt box melts the waste plastic particles to a molten state. The liquid pump inputs the molten waste plastic from the hot melt box into the liquid pipe, and the molten waste plastic enters the cylinder through the liquid pipe. A sheet plate is fixed to the right side of the inner wall of the frame. A mold-separating assembly is provided above the right side of the sheet plate. The mold-separating assembly includes an electric slide table and two blades. The electric slide table is located on the right side of the sheet plate, and the two blades are fixed to the right side of the platform of the electric slide table.

[0009] According to another advantageous design of the invention, it further includes: Die 1, which is fixed to the right side of the sheet; A return frame, wherein the return frame is disposed inside the machine frame; A guide rod is provided on the right side of the plate and passes through and is fixed to the left side of the return frame; An electric telescopic rod is provided, which passes through and is fixed to the left side of the mold frame. A second die is fixed to the left side of the telescopic end of the electric telescopic rod. The second die is slidably disposed on the outer wall of the guide rod. The telescopic end of the electric telescopic rod drives the second die to move to the left, and the second die slides to the left on the guide rod.

[0010] According to another advantageous design of the invention, the spring is set above the outside of the nozzle, and the outer wall of each of the arc blocks is respectively on the motion trajectory of the outer wall of each hemispherical column; the return frame is located on the left side of the hot melt box, the mold parting assembly is located above the first die, and the first die is located below the nozzle.

[0011] According to another advantageous design of the present invention, a granulation device is provided on the bottom surface of the annular block, the granulation device being used to crush particles in the waste plastic melt; a scraping device is provided on the inner wall of the granulation device, the scraping device being used to scrape off the waste melt adhering to the inner wall of the cylinder.

[0012] According to another advantageous embodiment of the invention, the pelletizing device comprises: Two narrow frames are fixed to the bottom surface of the annular block, and two circular holes are respectively opened on the side of the two narrow frames that are far apart from each other; Two round rods are respectively rotatably mounted below the inner walls of two narrow frames; A double-ring frame is fixed to the lower part of the inner wall of the cylinder and is sleeved on the lower part of the outer side of the cylinder. The inner wall of the double-ring frame is provided with wire mesh. Two outer walls of the two rollers are in rolling contact with the top surface of the steel wire mesh, and the rollers roll on the steel wire mesh of the double-ring frame.

[0013] According to another advantageous design scheme of the present application, a sheet ring is arranged below the two outer walls of the narrow frames, a vertical ring is fixed to the top surface of the sheet ring, and a plurality of blades are arranged on the outer wall of the vertical ring.

[0014] According to another advantageous design scheme of the present application, the residual melting device comprises: Two adapter plates are fixed below the two outer walls of the narrow frames, and a circular plate is fixed to the outer wall of each adapter plate. A ring plate is fixed to the inner wall of the circular hole of the circular plate, and the inner wall of the ring plate is fixedly connected to the lower outer wall of the circular tube. A coarse mesh is fixed to the inner wall of the semicircular groove of the circular plate, and the mesh seam width of the coarse mesh is greater than that of the steel wire mesh.

[0015] According to another advantageous design scheme of the present application, a vertical column is fixedly arranged on the top surface of the circular plate, the vertical column is located at a high position of the inclined surface of the circular plate, an adapter tube is fixed to the outer wall of the vertical column, and a chamfer plate is fixedly arranged on the outer wall of the adapter tube.

[0016] The present application has the following advantages: 1. The screw rod rotates in the nozzle, the spiral blades on the screw rod uniformly stir the waste plastic melt in the cylinder into the nozzle, the nozzle uniformly injects the waste plastic melt into the female die one and the female die two, avoids the waste plastic melt adhering to the inner wall of the mold unevenly, the air pump pumps air into the cavity of the screw rod, the screw rod blows the air into the mold, and the waste plastic melt adheres to the inner wall of the mold to form; the hemispherical column knocks the arc block, the spring two on the hemispherical column contracts, when the hemispherical column leaves the arc block, under the elastic force of the spring two, the hemispherical column pops out in the circular hole of the ring block, the vibration of the hemispherical column knocking is transmitted to the screw rod, when the screw rod rotates and stirs the waste plastic melt, the rotating blades of the screw rod vibrate the bubbles in the waste plastic melt upwards, prevents the waste plastic melt in the molten state from containing many bubbles, and the waste plastic melt in the mold is not uniformly thick and thin, which causes the blow molding equipment to blow the waste plastic with poor effect. 2, the concave die two on the guide rod slides to the left, the concave die one and the concave die two complete the closing of the mould;Drive assembly two drives the cylinder nozzle to move downwards, the cylinder nozzle slides downwards in the cylinder, the spring one on the cylinder nozzle contracts, the cylinder nozzle drives the spiral rod to move downwards, the spiral rod slides downwards in the cylinder, and the cylinder nozzle accurately enters the concave die one and the concave die two; 3, the round stick rolls on the steel wire mesh of the double ring frame, the plastic melt flows downwards in the cylinder, and the rolling round stick cooperates with the steel wire mesh to crush the particles in the waste plastic melt, so that the waste plastic melt with larger particles is prevented from causing the waste plastic blow molding quality to be unqualified;The vertical ring drives a plurality of blades to rotate forward, and the plurality of blades uniformly distribute the waste plastic melt to the steel wire mesh in the rotating process, so that the waste plastic melt is prevented from being locally accumulated on the steel wire mesh to cause poor rolling effect of the round stick.

[0017] 4, the round plate drives the coarse mesh to rotate forward, and the vibration of the reciprocating knocking of the hemispherical column to the arc block is transmitted to the surface of the coarse mesh;The larger waste plastic particles in the unmelted state are retained on the surface of the round plate and the coarse mesh, and the subsequent liquid pipe continuously heats the larger waste plastic particles in the unmelted state by discharging the waste heat of the waste plastic in the molten state, so that the larger waste plastic particles in the unmelted state are screened out to the lower part by the vibration of the coarse mesh, thereby preventing the existence of unmelted particles in the waste plastic, causing the product surface to be rough and become a weak point, and being easy to break during blow molding;When the chamfer plate rotates to the highest position, the chamfer plate scrapes off the waste plastic in the molten state from the liquid pipe discharge port, so as to avoid the waste plastic in the molten state from blocking the liquid pipe discharge port. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the overall view of the present application; Figure 2 is the internal component view of the present application; Figure 3 is the cross-sectional view of the rack of the present application; Figure 4 is the cross-sectional view of the long frame of the present application; Figure 5 is the Figure 4 is the partial enlarged view of A in the present application; Figure 6 is the cross-sectional view of the cylinder of the present application; Figure 7 is the particle crushing device view of the present application; Figure 8 is the Figure 7 is the partial enlarged view of B in the present application; Figure 9 is the particle crushing device cross-sectional view of the present application; Figure 10 is the residual melting device view of the present application; Figure 11 is the Figure 10 is the partial enlarged view of C in the present application.

[0019] The figure is marked as: 1, long frame; 2, air pump; 3, cylinder; 4, round pipe; 5, drive assembly one; 6, screw rod; 7, barrel nozzle; 8, spring one; 9, ring block; 10, arc block; 11, ring hole block; 12, hemispherical column; 13, spring two; 14, granulating device; 141, narrow frame; 142, round stick; 143, double ring frame; 144, steel mesh; 145, sheet ring; 146, vertical ring; 147, blade; 15, residual heat melting device; 151, connecting plate; 152, round plate; 153, ring plate; 154, coarse mesh; 155, vertical column; 156, connecting pipe; 157, chamfer plate; 16, drive assembly two; 17, frame; 18, hot melting box; 19, liquid pump; 20, liquid pipe; 21, sheet plate; 22, mold separating assembly; 23, concave mold one; 24, guide rod; 25, return type frame; 26, electric telescopic rod one; 27, concave mold two. DETAILED DESCRIPTION

[0020] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present application is not limited by the specific embodiments.

[0021] As Figures 1-11 shown, one embodiment of the present application is a waste plastic blow molding equipment, comprising: long frame 1, the top surface of long frame 1 is provided with air pump 2, the left side of the top surface of long frame 1 is penetrated and fixed with cylinder 3, the right side of the top surface of cylinder 3 is provided with liquid inlet, a plurality of air holes are formed in the top end of the inside of cylinder 3, and round pipe 4 is penetrated and rotatably installed in the top end of the inside of cylinder 3; screw rod 6, screw rod 6 is slidably installed on the inner wall of round pipe 4, and the vertical movement of screw rod 6 is limited by round pipe 4, the inside of screw rod 6 is a cavity structure, and the outer wall of the air pipe of air pump 2 is rotatably connected with the inner wall of round pipe 4; barrel nozzle 7, barrel nozzle 7 is penetrated and slidably installed in the bottom end of the inside of cylinder 3, spring one 8 is arranged between the inside top end of barrel nozzle 7 and the bottom end of the inside of cylinder 3, and the bottom end of screw rod 6 is penetrated and rotatably installed in the bottom end of the inside of barrel nozzle 7; ring block 9, ring block 9 is fixed on the inner wall of the top of cylinder 3, and a plurality of arc blocks 10 are arranged on the inner wall of ring block 9; ring hole block 11, ring hole block 11 is fixed on the outer wall of the top of round pipe 4, a plurality of round holes are formed in the outer wall of ring hole block 11, one hemispherical column 12 is slidably installed in the inner wall of each round hole of ring hole block 11, and one spring two 13 is arranged between the outer wall of each hemispherical column 12 and the inner wall of each round hole of ring hole block 11.

[0022] Also includes: drive assembly one 5, drive assembly one 5 is arranged at the left side of the top surface of the long frame 1, drive assembly one 5 includes: U-shaped frame, servo motor and two gears, the U-shaped frame is fixed at the left side of the top surface of the long frame 1, the servo motor is fixedly installed at the top end of the inside of the U-shaped frame, the left gear is fixed at the bottom surface of the servo motor output shaft, and the right gear is fixed at the top of the circular tube 4, the outer walls of the two gears are engaged with each other, and the drive assembly one 5 is used for driving the circular tube 4 to rotate; drive assembly two 16, drive assembly two 16 is arranged on the outer wall of the cylinder 3, drive assembly two 16 includes: wide frame, electric telescopic rod two and L-shaped plate, the wide frame is fixed on the outer wall of the cylinder 3, the electric telescopic rod two is fixed on the left side of the top surface of the wide frame, and the L-shaped plate is fixed on the bottom surface of the telescopic end of the electric telescopic rod two, and the L-shaped plate is fixed below the outer wall of the cylinder nozzle 7, and the drive assembly two 16 is used for driving the cylinder nozzle 7 to move downwards; Rack 17, the inside bottom end of rack 17 is provided with hot melting box 18, the top surface of hot melting box 18 is provided with a material port, the top surface of hot melting box 18 is provided with liquid pump 19, the top surface of liquid pump 19 is provided with liquid pipe 20, and the end, away from liquid pump 19, of liquid pipe 20 is fixedly connected with the inner wall of the liquid inlet of cylinder 3; Sheet plate 21, sheet plate 21 is fixed on the right inner wall of rack 17, sheet plate 21 is provided with mold dividing assembly 22 above the right side, mold dividing assembly 22 includes: electric sliding table and double blades, electric sliding table is arranged on the right side of sheet plate 21, and double blades are fixed on the right side of the table of electric sliding table; Cavity one 23, cavity one 23 is fixed on the right side of sheet plate 21; Back-shaped frame 25, back-shaped frame 25 is arranged in the inside of rack 17; Guide rod 24, guide rod 24 is arranged on the right side of sheet plate 21, and guide rod 24 penetrates and is fixed on the left side of back-shaped frame 25; Electric telescopic rod one 26, electric telescopic rod one 26 penetrates and is fixed on the left side of back-shaped frame 25, and the telescopic end of electric telescopic rod one 26 is fixed with cavity two 27 on the left side, cavity two 27 is slidably arranged on the outer wall of guide rod 24; Spring one 8 is sleeved on the outer top of cylinder nozzle 7, and the outer wall of each arc block 10 is respectively located on the movement track of the outer wall of each hemispherical column 12; back-shaped frame 25 is located on the left side of hot melting box 18, mold dividing assembly 22 is located above cavity one 23, and cavity one 23 is located below cylinder nozzle 7; The operator pours the waste plastic particles into the material port of the hot melting tank 18, the hot melting tank 18 on the frame 17 melts the waste plastic particles to a molten state, the liquid pump 19 inputs the waste plastic melt in the hot melting tank 18 into the liquid pipe 20, the liquid pipe 20 inputs the waste plastic melt into the cylinder 3, at the same time, the operator starts the electric telescopic rod one 26 in the return type frame 25, the telescopic end of the electric telescopic rod one 26 starts to move to the left, the telescopic end of the electric telescopic rod one 26 drives the concave die two 27 to move to the left, the concave die two 27 slides to the left on the guide rod 24, the concave die two 27 contacts the concave die one 23 on the sheet plate 21, and the concave die one 23 and the concave die two 27 complete the die closing; The operator starts the driving assembly one 5 and the driving assembly two 16, the telescopic end of the electric telescopic rod two on the wide frame starts to move downward, the telescopic end of the electric telescopic rod two drives the L-shaped plate to move downward, the L-shaped plate drives the cylinder nozzle 7 to move downward, the cylinder nozzle 7 slides downward in the cylinder 3, the spring one 8 on the cylinder nozzle 7 starts to contract, the cylinder nozzle 7 drives the spiral rod 6 to move downward, the spiral rod 6 slides downward in the circular pipe 4, the cylinder nozzle 7 enters the concave die one 23 and the concave die two 27, at the same time, the output shaft of the servo motor starts to reverse, the output shaft of the servo motor drives the gear to reverse, the gear drives another gear to rotate forward, the other gear drives the circular pipe 4 to rotate forward, the circular pipe 4 rotates forward in the cylinder 3, the circular pipe 4 rotates forward on the air pipe of the air pump 2, the circular pipe 4 drives the spiral rod 6 to rotate forward, the spiral rod 6 rotates forward in the cylinder nozzle 7, the spiral leaves on the spiral rod 6 evenly stir the waste plastic melt in the cylinder 3 into the cylinder nozzle 7 in the process of rotation, the cylinder nozzle 7 evenly injects the waste plastic melt into the concave die one 23 and the concave die two 27, avoiding uneven adhesion of the waste plastic melt to the inner wall of the mold, at the same time, the air pump 2 pumps air into the circular pipe 4, the circular pipe 4 inputs air into the cavity of the spiral rod 6, the spiral rod 6 blows air into the mold, so that the waste plastic melt adheres to the inner wall of the mold to form a shape; At the same time that the circular pipe 4 drives the spiral rod 6 to rotate forward, the circular pipe 4 drives the ring hole block 11 to rotate forward, the ring hole block 11 drives the hemispherical column 12 to rotate forward, the hemispherical column 12 contacts the arc block 10 on the ring block 9 in the process of rotation, the hemispherical column 12 knocks the arc block 10, and the hemispherical column 12 retracts into the circular hole of the ring hole block 11, the spring two 13 on the hemispherical column 12 retracts, when the hemispherical column 12 moves away from the arc block 10, under the elastic force of the spring two 13, the hemispherical column 12 pops out of the circular hole of the ring hole block 11, so that the hemispherical column 12 reciprocally knocks the arc block 10, the vibration of the hemispherical column 12 knocking is transmitted to the spiral rod 6, in the process of the spiral rod 6 rotating and stirring the waste plastic melt, the rotating leaves of the spiral rod 6 vibrate the bubbles in the waste plastic melt upward, the bubbles are discharged from the air hole of the cylinder 3, thereby avoiding the problem that the waste plastic blow molding equipment has many bubbles in the molten state of the waste plastic melt when blow molding, and the waste plastic melt is not uniformly thick in the mold, causing the blow molding equipment to blow the waste plastic to be ineffective; When the waste plastic melt in the mold is formed, the telescopic end of the electric telescopic rod 26 resets, the concave die 27 slides right on the guide rod 24, and the concave die 1 23 and the concave die 27 complete the mold opening. The operator starts the mold splitting assembly 22, the load table of the electric sliding table slides forward, the double blades are moved forward by the load table of the electric sliding table, and the double blades cut the plastic colloid above the formed waste plastic and below the barrel nozzle 7 in the process of moving forward, facilitating the equipment to blow the next time.

[0023] As Figures 1-11 shown, on the basis of the above embodiment, the ring hole block 11 bottom surface is provided with a grain crushing device 14 for crushing particles in the waste plastic melt; the inner wall of the grain crushing device 14 is provided with a scraping device 15 for scraping the waste melt adhered to the inner wall of the cylinder 3.

[0024] The grain crushing device 14 comprises: Two narrow frames 141 are fixed on the bottom surface of the ring hole block 11, and two round holes are respectively formed on the sides of the two narrow frames 141 away from each other; Two round rods 142 are respectively rotatably installed on the inner wall below the two narrow frames 141; A double ring frame 143 is fixed on the inner wall below the cylinder 3, and the double ring frame 143 is sleeved below the outer part of the circular tube 4, and the inner wall of the double ring frame 143 is provided with a steel wire mesh 144; The outer wall of the two round rods 142 is in rolling contact with the top surface of the steel wire mesh 144; While the ring hole block 11 drives the hemispherical column 12 to rotate forward, the ring hole block 11 drives the narrow frame 141 to rotate forward, the narrow frame 141 drives the round rod 142 to rotate forward, the round rod 142 rolls on the steel wire mesh 144 of the double ring frame 143, and the plastic melt flows downward in the cylinder 3. The round rod 142 rolls and cooperates with the steel wire mesh 144 to crush the particles in the waste plastic melt, thereby avoiding the problem that the waste plastic blow molding equipment contains large particles in the waste plastic melt during blow molding, causing the waste plastic blow molding quality to be unqualified.

[0025] Two narrow frames 141 are fixed on the bottom surface of the ring hole block 11, and two round holes are respectively formed on the sides of the two narrow frames 141 away from each other; While the narrow frame 141 drives the round rod 142 to rotate forward, the narrow frame 141 drives the round rod 142 to rotate forward, and the round rod 142 rolls on the steel wire mesh 144 of the double ring frame 1 43. The round rod 142 rolls and cooperates with the steel wire mesh 144 to crush particles in the waste plastic melt, thereby avoiding the problem that the waste plastic blow molding equipment contains a large amount of particles in the waste plastic melt during blow molding, causing the waste plastic blow molding quality to be substandard.

[0026] The residual melting device 15 comprises: Two adapter plates 151 are respectively fixed below the outer walls of the two narrow frames 141, the outer walls of the two adapter plates 151 are fixed with a circular plate 152, the circular plate 152 is arranged in an inclined manner, a circular hole is formed in the middle of the circular plate 152, and a semicircular groove is formed in the top surface of the circular plate 152; A ring plate 153 is fixed to the inner wall of the circular hole of the circular plate 152, and the inner wall of the ring plate 153 is fixedly connected to the lower portion of the outer wall of the circular tube 4; A coarse mesh 154 is fixed to the inner wall of the semicircular groove of the circular plate 152, and the mesh seam width of the coarse mesh 154 is greater than that of the steel wire mesh 144.

[0027] When the narrow frame 141 drives the circular rod 142 to rotate forward, the narrow frame 141 drives the adapter plate 151 to rotate forward, the adapter plate 151 drives the circular plate 152 to rotate forward, the circular tube 4 drives the ring plate 153 to rotate forward, the ring plate 153 supports the circular plate 152 to rotate forward, and the circular plate 152 drives the coarse mesh 154 to rotate forward. At the same time, the vibration of the reciprocating knocking of the semispherical column 12 on the arc block 10 is transmitted to the surface of the coarse mesh 154. Since the circular plate 152 is arranged in an inclined manner, the liquid pipe 20 discharges the waste plastic in a hot melting state to the surface of the circular plate 152. In the process of rotation of the circular plate 152, the coarse mesh 154 vibrates to filter the waste plastic in a hot melting state to the upper portion of the steel wire mesh 144. Larger waste plastic particles in a non-melting state are retained on the surfaces of the circular plate 152 and the coarse mesh 154. The subsequent residual heat of the waste plastic in a hot melting state discharged by the liquid pipe 20 continuously heats the larger waste plastic particles in a non-melting state, so that the larger waste plastic particles in a non-melting state are screened out to the lower portion by the coarse mesh 154, thereby avoiding the problem that the waste plastic in a non-melting state exists in the waste plastic during blow molding of the waste plastic blow molding equipment, which causes the surface of the product to be rough and weak in strength, and the product is prone to breakage during blow molding.

[0028] A vertical column 155 is fixed through the top surface of the circular plate 152, the vertical column 155 is located at a high position of the inclined surface of the circular plate 152, the outer wall of the vertical column 155 is fixed with an adapter pipe 156, the outer wall of the adapter pipe 156 is fixedly installed with a chamfer plate 157, and the chamfer of the chamfer plate 157 is in sliding contact with the left end of the liquid pipe 20.

[0029] When the adapter plate 151 drives the circular plate 152 to rotate forward, the circular plate 152 drives the vertical column 155 to rotate forward, the vertical column 155 drives the adapter pipe 156 to rotate forward, the adapter pipe 156 drives the chamfer plate 157 to rotate forward, and when the chamfer plate 157 rotates to the highest position, the chamfer plate 157 is in contact with the discharge port of the liquid pipe 20. The chamfer plate 157 scrapes off the waste plastic in a hot melting state from the discharge port of the liquid pipe 20, thereby avoiding the problem that the waste plastic in a hot melting state blocks the discharge port of the liquid pipe 20.

[0030] It will be obvious to a person skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments and can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims to the identity of the reference signs therein.

[0031] Furthermore, it should be understood that although the description is made on the basis of the embodiments, not every embodiment contains only one independent technical solution, and the description is made in this way only for the sake of clarity, and a person skilled in the art should consider the description as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A blow molding equipment for waste plastics, characterized in that, include: A long frame (1) is provided with an air pump (2) on the top surface of the long frame (1). A cylinder (3) is provided through and fixed on the left side of the top surface of the long frame (1). An inlet is provided on the upper right side of the cylinder (3). Several air holes are provided at the top inside the cylinder (3). A round tube (4) is provided through and rotatably installed at the top inside the cylinder (3). The spiral rod (6) is slidably installed on the inner wall of the circular tube (4), and the circular tube (4) restricts the spiral rod (6) to move vertically. The spiral rod (6) has a hollow structure inside. The outer wall of the air pipe of the air pump (2) is rotatably connected to the inner wall of the circular tube (4). The nozzle (7) is installed inside the bottom of the cylinder (3) through and slidingly. A spring (8) is provided between the top of the nozzle (7) and the bottom of the cylinder (3). The bottom of the spiral rod (6) is installed inside the bottom of the nozzle (7) through and rotatably. Ring block (9), the ring block (9) is fixed above the inner wall of the cylinder (3), and the inner wall of the ring block (9) is provided with a number of arc blocks (10). An annular hole block (11) is fixed above the outer wall of the circular tube (4). The outer wall of the annular hole block (11) has several circular holes. A hemispherical column (12) is slidably installed on the inner wall of each circular hole of the annular hole block (11). A spring (13) is provided between the outer wall of each hemispherical column (12) and the inner wall of each circular hole of the annular hole block (11).

2. The waste plastic blow molding equipment according to claim 1, characterized in that, Also includes: Drive component one (5), which is located on the left side of the top surface of the long frame (1), is used to drive the round tube (4) to rotate; Drive component two (16), which is located on the outer wall of the cylinder (3), is used to drive the nozzle (7) to move downward.

3. The waste plastic blow molding equipment according to claim 2, characterized in that, Also includes: A frame (17) is provided with a hot melt box (18) at the bottom inside the frame (17). A liquid pump (19) is provided on the top surface of the hot melt box (18). A liquid pipe (20) is provided on the top surface of the liquid pump (19). The end of the liquid pipe (20) away from the liquid pump (19) is fixedly connected to the inner wall of the liquid inlet of the cylinder (3). Plate (21) is fixed to the right side of the inner wall of the frame (17), and a mold parting assembly (22) is provided above the right side of the plate (21).

4. The waste plastic blow molding equipment according to claim 3, characterized in that, Also includes: Die 1 (23), which is fixed on the right side of plate (21); A return frame (25) is disposed inside the frame (17); Guide rod (24), the guide rod (24) is located on the right side of the plate (21), and the guide rod (24) passes through and is fixed on the left side of the return frame (25); Electric telescopic rod one (26) is inserted through and fixed on the left side of the return frame (25). A concave mold two (27) is fixed on the left side of the telescopic end of the electric telescopic rod one (26). The concave mold two (27) is slidably disposed on the outer wall of the guide rod (24).

5. The waste plastic blow molding equipment according to claim 4, characterized in that, The spring (8) is sleeved above the outside of the nozzle (7), and the outer wall of each arc block (10) is on the motion trajectory of the outer wall of each hemispherical column (12); The mold frame (25) is located on the left side of the hot melt box (18), the mold parting assembly (22) is located above the first die (23), and the first die (23) is located below the nozzle (7).

6. The waste plastic blow molding equipment according to claim 5, characterized in that, The bottom surface of the annular block (11) is provided with a granulation device (14), which is used to crush the particles in the waste plastic melt. The inner wall of the grinding device (14) is provided with a scraping device (15), which is used to scrape off the waste melt adhering to the inner wall of the cylinder (3).

7. The waste plastic blow molding equipment according to claim 6, characterized in that, The pelletizing device (14) includes: Two narrow brackets (141) are fixed to the bottom surface of the annular block (11), and two round holes are respectively opened on the side of the two narrow brackets (141) that are far apart from each other; Two round rods (142) are respectively rotatably mounted on the lower inner wall of two narrow frames (141); Double ring frame (143), the double ring frame (143) is fixed below the inner wall of the cylinder (3), and the double ring frame (143) is sleeved on the lower part of the outer side of the round tube (4). The inner wall of the double ring frame (143) is provided with wire mesh (144). The outer walls of the two cylindrical rods (142) roll into contact with the top surface of the wire mesh (144).

8. The waste plastic blow molding equipment according to claim 7, characterized in that, The two narrow frames (141) are provided with a plate ring (145) below the outer wall, and a vertical ring (146) is fixed on the top surface of the plate ring (145). The outer wall of the vertical ring (146) is provided with a number of blades (147).

9. The waste plastic blow molding equipment according to claim 8, characterized in that, The residual melting device (15) includes: Two connecting plates (151) are fixed below the outer walls of two narrow frames (141), and a circular plate (152) is fixed to the outer wall of the two connecting plates (151). The circular plate (152) is inclined, and a circular hole is opened in the middle of the circular plate (152). A semi-circular groove is opened on the top surface of the circular plate (152). Ring plate (153), the ring plate (153) is fixed to the inner wall of the circular hole of the circular plate (152), and the inner wall of the ring plate (153) is fixedly connected to the lower part of the outer wall of the circular tube (4); A coarse mesh (154) is fixed to the inner wall of the semi-circular groove of the circular plate (152), and the mesh seam width of the coarse mesh (154) is greater than that of the wire mesh (144).

10. A waste plastic blow molding equipment according to claim 9, characterized in that, A vertical column (155) is fixed through and fixed to the top surface of the circular plate (152). The vertical column (155) is located at the high point of the inclined surface of the circular plate (152). A connecting pipe (156) is fixed to the outer wall of the vertical column (155). A chamfer plate (157) is fixedly installed on the outer wall of the connecting pipe (156). The chamfer of the chamfer plate (157) slides in contact with the left end of the liquid pipe (20).

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