Antibacterial plastic particle preparation device

Abstract

The invention relates to the technical field of plastic particle preparation, and provides an antibacterial plastic particle preparation device which comprises an extruder and further comprises a water cooling mechanism and a drying assembly, the water cooling mechanism is used for conducting water cooling on extruded plastic thin strips, and the water cooling mechanism comprises a cold water bin, a water pump, a spraying pipe, a conveying roller and an air cooling assembly; the drying assembly comprises a drying box, a heat collection bin and a heat transfer pipe, the drying box communicates with the water cooling mechanism, the heat collection bin sleeves the exterior of a charging barrel of the extruder, the air supply box communicates with an air outlet box, the air outlet box communicates with the heat collection bin through a communicating pipe, and the heat transfer pipe communicates with the air outlet box; by means of the technical scheme, the problems that in the prior art, a cold water bin is exposed to the outside, and dust and impurities are prone to polluting plastic particles are solved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic particle preparation, and in particular to a device for preparing antibacterial plastic particles. Background Art

[0002] Antibacterial plastic is a type of plastic that inhibits or kills bacteria, molds, fungi, algae and even viruses that are contaminated on plastics. It is also a type of modified plastic. By modifying the plastic, it can be given antibacterial function. Plastic granulation equipment is used to make plastic raw materials into plastic granules. The basic working principle of plastic granulation equipment is the same, that is, the plastic raw materials and antibacterial agents are mixed and added to the screw extruder, and the plastic raw materials are melted at high temperature by heating. Then the screw in the screw extruder barrel extrudes and feeds the material and extrude the melted plastic from the die head into thin strips. Then the thin strips are cooled by air or water and cut into antibacterial plastic particles by blades.

[0003] The current plastic particle preparation device is usually equipped with a 4-6 meter cold water bin to water-cool the plastic strips extruded by the extruder. However, the cold water bin is exposed to the external environment. Since the surface of the extruded plastic strips still has a relatively high temperature, dust and impurity particles in the air are easily adsorbed on the surface of the plastic strips, causing subsequent contamination of the plastic particles. Therefore, we propose an antibacterial plastic particle preparation device that can reduce the contamination of plastic strips by external dust and impurities. Summary of the invention

[0004] The present invention provides a device for preparing antibacterial plastic particles, which solves the problem in the prior art that the cold water bin is exposed to the outside and dust and impurities easily contaminate the plastic particles.

[0005] The technical solution of the present invention is as follows: A device for preparing antibacterial plastic particles, comprising an extruder, and further comprising:

[0006] A water cooling mechanism, the water cooling mechanism is used to water cool the extruded plastic strips, the water cooling mechanism comprises:

[0007] A cold water tank, the cold water tank being connected to the die head of the extruder;

[0008] A water pump, the water pump is arranged on the cold water bin, the water pump is connected to the bottom of the cold water bin through a water pumping pipe, and the water pumping pipe is bent;

[0009] A spray pipe, the spray pipe is arranged on the top of the cold water bin, the spray pipe is connected to the water outlet of the water pump, and the bottom of the spray pipe is connected to a plurality of atomizing nozzles;

[0010] A conveying roller, the conveying roller is rotatably arranged inside the cold water bin;

[0011] An air cooling component, the air cooling component is used to cool the water pumping pipe, and the air cooling component includes:

[0012] An air supply box, the air supply box is arranged on the cold water bin, and a plurality of air outlets are provided on a side of the air supply box close to the water pumping pipe;

[0013] A blower, the blower being arranged inside the blower box;

[0014] A drying component, which is used to dry the cooled plastic strips, and includes:

[0015] A drying box, the drying box is connected to the cold water tank;

[0016] A heat collecting bin, wherein the heat collecting bin is sleeved on the outside of the barrel of the extruder, the air supply box is connected to an air outlet box, and the air outlet box is connected to the heat collecting bin through a connecting pipe;

[0017] The heat transfer pipe is used to connect the heat collecting bin to the drying box.

[0018] In order to increase the hot air transported by the heat transfer pipe, an auxiliary air supply component is also included, and the auxiliary air supply component includes:

[0019] An axial flow fan, wherein the air outlet of the axial flow fan is connected to the heat collecting bin, and a one-way valve is provided on the connecting pipe.

[0020] In order to improve the heat dissipation effect of the water extraction pipe, the air inlet of the axial flow fan is connected to an air suction hood, and the air suction hood is located on the side of the water extraction pipe away from the air supply box.

[0021] In order to reduce the material residue on the conveying roller, a scraper is arranged inside the cold water bin, and the scraper is in contact with the bottom end of the conveying roller.

[0022] In order to improve the heat dissipation effect of the water pumping pipe, a heat sink is arranged on the outside of the water pumping pipe.

[0023] In order to improve the drying effect of the water-cooled plastic strips, the heat transfer pipe is connected to a drying ring network, the inner side of the drying ring network is connected to a plurality of drying nozzles, and the plastic strips pass through the drying ring network.

[0024] In order to reduce the water vapor in the drying box, a water-absorbing sponge is arranged at the bottom of the drying box.

[0025] In order to ensure the water absorption of the water-absorbing sponge, a squeezing component is also included, and the squeezing component includes:

[0026] A placing box, wherein the placing box is arranged at the bottom of the drying box, the water-absorbing sponge is placed inside the placing box, and a plurality of water outlet holes are opened at the bottom of the placing box;

[0027] A push plate, the push plate is movably arranged on the drying box, and the push plate is in contact with the water-absorbing sponge;

[0028] A water collecting box is movably arranged below the placement box.

[0029] The working principle and beneficial effects of the present invention are:

[0030] 1. In the present invention, the plastic raw material is heated to a molten state by an extruder and extruded into plastic strips. The plastic strips enter the interior of a cold water bin, and the cold water in the cold water bin cools the plastic strips. A water pump draws water out of the cold water bin and sprays it out through an atomizing nozzle. The water enters the interior of a water pumping pipe, and air is blown toward the water pumping pipe through an air supply box to cool the water pumping pipe, thereby ensuring the low temperature of the water and thus ensuring the cooling effect on the plastic strips. At the same time, the cold water bin is in a closed environment, reducing the contact between the plastic strips and the outside world, thereby ensuring the cleanliness of the plastic strips.

[0031] 2. In the present invention, the water-cooled plastic strips enter the interior of the drying box, and the wind in the air supply box enters the interior of the heat collecting bin, and the heat generated by the barrel of the extruder is sent to the interior of the heat transfer pipe and the drying ring network. The water-cooled plastic strips are dried by the drying nozzle. The drying ring network is annular and can evenly dry the plastic strips.

[0032] 3. In the present invention, the drying nozzle blows off the moisture on the surface of the plastic strip, and the blown-off moisture falls into the interior of the water-absorbing sponge and is absorbed. The push plate moves to squeeze the moisture inside the water-absorbing sponge and drops it into the water collecting tank, thereby ensuring the water absorption effect of the water-absorbing sponge.

[0033] 4. In the present invention, air is supplied to the interior of the heat collecting bin by an axial flow fan, and the hot air in the heat collecting bin is blown to the interior of the drying ring network. At the same time, the axial flow fan draws air to the suction hood, and the heat at the water pumping pipe is sent to the interior of the heat collecting box. While accelerating the heat dissipation of the water pumping pipe, the heat is sent to the heat collecting bin for auxiliary heating, thereby improving the drying effect.

[0034] 5. Therefore, compared with the antibacterial plastic particle preparation device in the prior art, the present invention extrude the molten plastic into plastic strips through an extruder and enter the interior of the cold water bin, pump water into the water pumping pipe through a water pump and spray it through an atomizing nozzle, and supply air to the water pumping pipe through an air supply box to cool the water in the water pumping pipe to ensure a low temperature environment of the water, thereby ensuring the cooling effect on the plastic strips, and supply air to the interior of the heat collecting bin through an axial flow fan and a blower, and heat the air in the heat collecting bin through the barrel of the extruder. The hot air enters the heat transfer pipe and the drying ring network to dry the water-cooled plastic strips, and the dried plastic strips are cut into plastic particles. The water vapor generated by the drying falls into the interior of the water-absorbing sponge, and the water in the water-absorbing sponge is squeezed out by moving the push plate to ensure the water absorption effect of the water-absorbing sponge. The squeezed water enters the interior of the water collecting tank, and the water in the water collecting tank can be poured out regularly. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] Figure 1 It is a structural schematic diagram of the present invention from a first viewing angle;

[0037] Figure 2 It is a structural schematic diagram of the second viewing angle of the present invention;

[0038] Figure 3 It is a structural schematic diagram of the water cooling mechanism of the present invention;

[0039] Figure 4 It is a schematic diagram of the structure of the cold water bin, conveying roller and scraper of the present invention;

[0040] Figure 5 It is a schematic diagram of the structure of the drying component and the auxiliary air supply component of the present invention;

[0041] Figure 6 It is a schematic diagram of the structures of the drying component, the water-absorbing sponge and the squeezing component of the present invention;

[0042] Figure 7 It is a schematic structural diagram of the water-absorbing sponge and the squeeze-drying component of the present invention.

[0043] In the figure:

[0044] 1. Extruder; 2. Heat sink; 3. Scraper; 4. Water-absorbing sponge; 5. Drying ring net; 6. Drying nozzle;

[0045] 101, cold water tank; 102, water pump; 103, spray pipe; 104, conveying roller; 105, water extraction pipe; 106, atomizing nozzle;

[0046] 201, air supply box; 202, air supply fan;

[0047] 301, drying box; 302, heat collecting chamber; 303, heat transfer pipe; 304, air outlet box;

[0048] 401, axial flow fan; 402, one-way valve; 403, air suction hood;

[0049] 501. Placement box; 502. Push plate; 503. Water collecting tank; 504. Electric cylinder. DETAILED DESCRIPTION

[0050] The following will be combined with 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.

[0051] like Figures 1 to 7 As shown, this embodiment proposes an antibacterial plastic particle preparation device, including an extruder 1, and also includes a water cooling mechanism and a drying component. Compared with the antibacterial plastic particle preparation device in the prior art, the present invention extrude the molten plastic into plastic strips through the extruder 1 and enter the interior of the cold water bin 101, and pump water into the water pumping pipe 105 through the water pump 102 and spray it through the atomizing nozzle 106, and supply air to the water pumping pipe 105 through the air supply box 201, and cool the water in the water pumping pipe 105 by air cooling, thereby ensuring a low temperature environment for the water, thereby ensuring a cooling effect on the plastic strips. Air is supplied to the interior of the heat collecting bin 302 by the axial flow fan 401 and the blower 202, and the air in the heat collecting bin 302 is heated by the barrel of the extruder 1. The hot air enters the heat transfer pipe 303 and the drying ring network 5 to dry the water-cooled plastic strips. The dried plastic strips are cut into plastic particles, and the water vapor generated by the drying falls into the water-absorbing sponge 4. The water in the water-absorbing sponge 4 is squeezed out by moving the push plate 502 to ensure the water absorption effect of the water-absorbing sponge 4. The squeezed water enters the interior of the water collecting box 503, and the water in the water collecting box 503 can be poured out regularly.

[0052] like Figures 1 to 4As shown, the water cooling mechanism is used to water-cool the extruded plastic strips, and the water cooling mechanism includes a cold water bin 101, a water pump 102, a spray pipe 103, a conveying roller 104 and an air cooling component. The cold water bin 101 is connected to the die head of the extruder 1, the water pump 102 is arranged on the cold water bin 101, and the water pump 102 is connected to the bottom of the cold water bin 101 through a pumping pipe 105, and the pumping pipe 105 is bent. The spray pipe 103 is arranged on the top of the cold water bin 101, and the spray pipe 103 is connected to the water outlet of the water pump 102. The bottom of the spray pipe 103 is connected to a plurality of mist The nozzle 106 and the conveying roller 104 are rotatably arranged inside the cold water bin 101. The air cooling component is used to cool down the water pumping pipe 105. The air cooling component includes an air supply box 201 and a blower 202. The air supply box 201 is arranged on the cold water bin 101. A plurality of air outlets are provided on one side of the air supply box 201 close to the water pumping pipe 105. The blower 202 is arranged inside the air supply box 201. The water in the cold water bin 101 is pumped into the water pumping pipe 105 through the water pump 102. The water pumping pipe 105 is bent. At the same time, in order to improve the heat dissipation effect of the water pumping pipe 105 The outside of the water pumping pipe 105 is provided with a heat sink 2 to increase the contact area between the water in the water pumping pipe 105 and the outside, thereby improving the heat dissipation effect of the water. The air is blown by the blower 202, and cold air is blown to the water pumping pipe 105 through the air outlet to further improve the cooling effect on the water, thereby ensuring the cooling effect on the plastic strips. The water is sprayed inside the cold water bin 101 through the atomizing nozzle 106 to expand the contact area between the water and the air, so that the water can be cooled during the spraying process. The conveying roller 104 is undulating, and the height of the conveying roller 104 located in the middle is relatively low. The side conveying roller 104 is relatively high, which prolongs the time that the plastic strips are in the cold water, increases the contact area between the plastic strips and the cold water, and thus improves the cooling effect on the plastic strips. In order to reduce the material residue on the conveying roller 104, a scraper 3 is arranged inside the cold water bin 101. The scraper 3 is in contact with the bottom end of the conveying roller 104. During the movement of the plastic strips, the conveying roller 104 rotates, and the scraper 3 can scrape off the residual material on the surface of the conveying roller 104 to prevent the residual material from adhering to the surface of the conveying roller 104, thereby preventing the residual material from further causing the subsequent plastic to adhere.

[0053] like Figures 5 to 7As shown, the drying component is used to dry the cooled plastic strips, and the drying component includes a drying box 301, a heat collecting bin 302 and a heat transfer pipe 303. The drying box 301 is connected to the cold water bin 101, the heat collecting bin 302 is mounted on the outside of the barrel of the extruder 1, the air supply box 201 is connected to the air outlet box 304, the air outlet box 304 is connected to the heat collecting bin 302 through a connecting pipe, the heat collecting bin 302 is connected to the drying box 301 through the heat transfer pipe 303, the wind generated by the blower 202 in the air supply box 201 enters the interior of the heat collecting bin 302 through the air outlet box 304, and the hot air in the heat collecting bin 302 enters the interior of the drying box 301 through the heat transfer pipe 303, so as to dry the plastic strips in the drying box 301 and reduce the moisture on the surface of the plastic strips, thereby facilitating the subsequent cutting of the plastic strips.

[0054] like Figures 5 to 7 As shown, in order to increase the hot air transported by the heat transfer pipe 303, an auxiliary air supply component is also included, and the auxiliary air supply component includes an axial flow fan 401. The air outlet of the axial flow fan 401 is connected to the heat collecting bin 302, and a one-way valve 402 is arranged on the connecting pipe. In order to improve the heat dissipation effect on the water extraction pipe 105, the air inlet of the axial flow fan 401 is connected to an air suction hood 403. The air suction hood 403 is located on the side of the water extraction pipe 105 away from the air supply box 201. The axial flow fan 401 is used to supply air to the inside of the heat collecting bin 302, thereby increasing the wind speed of the hot air entering the inside of the heat transfer pipe 303, thereby ensuring the drying effect on the plastic strips. At the same time, the axial flow fan 401 and the air suction hood 403 exhaust air to the water extraction pipe 105, and cooperate with the air supply fan 202 to suck the hot air generated by the water extraction pipe 105 into the inside of the heat collecting bin 302, thereby improving the heat collection bin 302. In order to improve the drying effect of the plastic strips after water cooling, the heat transfer pipe 303 is connected to the drying ring network 5, and the inner side of the drying ring network 5 is connected to a plurality of drying nozzles 6. The plastic strips pass through the drying ring network 5, and the hot air in the heat collecting bin 302 is transported to the inside of the drying ring network 5 through the heat transfer pipe 303. The plastic strips pass through the drying ring network 5, and the drying nozzles 6 blow hot air in all directions around the plastic strips to dry them, so that the plastic strips are in a dry state when cut, thereby reducing the subsequent drying steps for the finished plastic particles and reducing the waste of water resources.

[0055] like Figure 6 to Figure 7As shown, in order to reduce the water vapor in the drying box 301, a water-absorbing sponge 4 is arranged at the bottom of the drying box 301. In order to ensure the water absorption of the water-absorbing sponge 4, a squeezing component is also included. The squeezing component includes a placement box 501, a push plate 502 and a water collecting box 503. The placement box 501 is arranged at the bottom of the drying box 301, and the water-absorbing sponge 4 is placed inside the placement box 501. A plurality of water outlet holes are opened at the bottom of the placement box 501. The push plate 502 is movably arranged on the drying box 301. An electric cylinder 504 is arranged on the drying box 301. The push plate 502 is arranged at the output end of the electric cylinder 504. The push plate 502 is in contact with the water-absorbing sponge 4. The water collecting box 503 is movably arranged below the placement box 501. After the plastic strips enter the drying box 301, part of the moisture on the surface of the plastic strips falls to the bottom of the drying box 301 and is absorbed by the water-absorbing sponge 4, reducing the evaporation of water vapor and causing the plastic strips to get wet again, thereby ensuring the surface of the plastic strips is dry. The electric cylinder 504 drives the push plate 502 to move, squeezes the water-absorbing sponge 4, and squeezes out the water inside the water-absorbing sponge 4. The water inside the water-absorbing sponge 4 falls into the water collecting box 503 through the water outlet hole for collection. The water collecting box 503 can be movably arranged at the bottom of the drying box 301. The water collecting box 503 can be taken out regularly and the moisture inside it can be processed to ensure the water absorption of the water-absorbing sponge 4, thereby ensuring the dryness of the drying box 301.

[0056] The use process or working principle of the antibacterial plastic particle preparation device is as follows:

[0057] First, a mixture of plastic raw materials and antimicrobial agents is added to the extruder 1, and the raw materials are heated and extruded into plastic strips by the extruder 1. The plastic strips are placed on the surface of the conveying roller 104 and immersed in the cold water in the cold water bin 101. The plastic strips enter the drying box 301 and enter the cutting machine for cutting;

[0058] The water pump 102 draws the water in the cold water bin 101 into the inside of the water pumping pipe 105 and sprays it through the atomizing nozzle 106. The air blower 202 supplies air to the water pumping pipe 105. At the same time, the axial flow fan 401 draws air to the water pumping pipe 105 to cool the water pumping pipe 105 to ensure the low temperature environment of the cold water in the cold water bin 101. The air blower 202 and the axial flow fan 401 supply air to the inside of the heat collecting bin 302 to blow the hot air generated by the barrel in the heat collecting bin 302 to the inside of the drying ring network 5 to dry the water-cooled plastic strips. The dried plastic strips are moved out of the drying box 301 to the inside of the cutting machine, and the plastic strips are cut into plastic particles by the cutting machine for collection.

[0059] The water vapor generated by drying the plastic strips falls into the water-absorbing sponge 4 and is absorbed. The electric cylinder 504 drives the push plate 502 to move, and the water in the water-absorbing sponge 4 is squeezed out and falls into the water collecting box 503. The water in the water collecting box 503 can be poured out regularly for treatment.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. 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. A device for preparing antibacterial plastic particles, comprising an extruder (1), characterized in that: include: A water cooling mechanism, wherein the water cooling mechanism is used to water-cool the extruded plastic strips; A drying component, which is used to dry the cooled plastic strips, and includes: A drying box (301), the drying box (301) being in communication with the water cooling mechanism; A heat collection bin (302), wherein the heat collection bin (302) is mounted outside the barrel of the extruder (1); A heat transfer pipe (303), the heat collection bin (302) is connected to the drying box (301) via the heat transfer pipe (303).

2. The device for preparing antibacterial plastic particles according to claim 1, characterized in that: The water cooling mechanism comprises: A cold water tank (101), the cold water tank (101) being connected to the die head of the extruder (1); A water pump (102), the water pump (102) being arranged on the cold water bin (101), the water pump (102) being connected to the bottom of the cold water bin (101) via a water pumping pipe (105), the water pumping pipe (105) being in a bent shape; A spray pipe (103), wherein the spray pipe (103) is arranged at the top of the cold water bin (101), the spray pipe (103) is connected to the water outlet of the water pump (102), and the bottom of the spray pipe (103) is connected to a plurality of atomizing nozzles (106); A conveying roller (104), the conveying roller (104) being rotatably disposed inside the cold water bin (101); An air cooling component is used to cool the water pumping pipe (105).

3. The device for preparing antibacterial plastic particles according to claim 2, characterized in that: The air cooling component comprises: An air supply box (201), the air supply box (201) being arranged on the cold water bin (101), a plurality of air outlets being provided on a side of the air supply box (201) close to the water extraction pipe (105), the air supply box (201) being connected to an air outlet box (304), and the air outlet box (304) being connected to the heat collection bin (302) via a connecting pipe; The air blower (202) is arranged inside the air supply box (201).

4. The device for preparing antibacterial plastic particles according to claim 3, characterized in that: It also includes an auxiliary air supply component, the auxiliary air supply component includes: An axial flow fan (401), wherein the air outlet of the axial flow fan (401) is connected to the heat collection bin (302), and a one-way valve (402) is provided on the connecting pipe.

5. The device for preparing antibacterial plastic particles according to claim 4, characterized in that: The air inlet of the axial flow fan (401) is connected to an air suction hood (403), and the air suction hood (403) is located on a side of the water extraction pipe (105) away from the air supply box (201).

6. The device for preparing antibacterial plastic particles according to claim 5, characterized in that: A scraper (3) is arranged inside the cold water bin (101), and the scraper (3) is in contact with the bottom end of the conveying roller (104).

7. The device for preparing antibacterial plastic particles according to claim 6, characterized in that: A heat sink (2) is provided outside the water pumping pipe (105).

8. The device for preparing antibacterial plastic particles according to claim 7, characterized in that: The heat transfer pipe (303) is connected to a drying ring net (5), the inner side of the drying ring net (5) is connected to a plurality of drying nozzles (6), and the plastic strips pass through the drying ring net (5).

9. The device for preparing antibacterial plastic particles according to claim 8, characterized in that: A water-absorbing sponge (4) is provided at the bottom of the drying box (301).

10. The device for preparing antibacterial plastic particles according to claim 9, characterized in that: Also included is a squeeze assembly, the squeeze assembly comprising: A placement box (501), the placement box (501) is arranged at the bottom of the drying box (301), the absorbent sponge (4) is placed inside the placement box (501), and a plurality of water outlet holes are opened at the bottom of the placement box (501); A push plate (502), the push plate (502) being movably disposed on the drying box (301), the push plate (502) being in contact with the water-absorbing sponge (4); A water collecting box (503), wherein the water collecting box (503) is movably arranged below the placement box (501).

Images