Auxiliary feeding machine barrel for single-screw extruder

Abstract

The auxiliary feeding machine barrel comprises a feeding machine barrel body, a feeding pipe and a cooling barrel cover, a first motor is installed at one end of the feeding machine barrel body, the cooling barrel cover is installed on the outer side of the feeding machine barrel body, and a discharging pipe is installed at the end, away from the first motor, of the bottom of the feeding machine barrel body. A control panel is mounted at the top of the end, away from the first motor, of the feeding cylinder, a water inlet pipe is mounted at the end, close to the first motor, of the top of the cooling cylinder cover, and a second motor is mounted at the bottom of the cooling cylinder cover. The cooling device is provided with the water inlet pipe, the cooling cylinder cover and the drainage pipe, when the cooling device is used, the cooling cylinder cover is arranged on the outer side of the feeding cylinder, and cold water is added into the cooling cylinder cover through the water inlet pipe, so that the cold water is collected in the cooling cylinder cover, the outer side of the feeding cylinder can be completely covered with the cold water, and different positions of the feeding cylinder can be cooled; and cooling dead angles are not easy to exist.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment for single-screw extruders, in particular to an auxiliary feeding barrel for single-screw extruders. Background Art

[0002] The single-screw extruder is composed of an Archimedean screw rotating in a heated barrel. It is widely used due to its simple structure and easy manufacturing. It is the most mature and most widely used type of extruder. During the use of the single-screw extruder, the plastic raw materials need to be added into the single-screw extruder through the cooperation of an auxiliary feeding barrel.

[0003] For example, the utility model "Auxiliary feeding barrel for single-screw extruder" has a publication number of "CN102700105A". This patent processes spiral grooves on the outer wall of the feeding barrel so that cooling water directly cools the feeding barrel, thereby ensuring that the temperature of the feed port remains unchanged and that the temperature of the plastic raw material in the mixing zone is within the process requirements to prevent the plastic raw material from being plasticized in advance and affecting the feed amount. However, during the implementation of this patent, since the spiral grooves cannot completely cover the outside of the feeding barrel, cold water cannot cool different positions of the feeding barrel through the water pipe, and cooling dead corners are likely to exist. When the water flows to the rear section of the feeding barrel, the water temperature gradually increases, and the cooling effect on the rear section of the feeding barrel is reduced, which makes it impossible to maintain uniform temperatures at different positions of the feeding barrel. Therefore, the utility model provides an auxiliary feeding barrel for a single-screw extruder to solve the above-mentioned problems. Utility Model Content

[0004] The utility model aims to provide an auxiliary feeding barrel for a single screw extruder to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary feeding barrel for a single-screw extruder, comprising a feeding barrel, a feeding pipe and a cooling barrel cover, a first motor is installed at one end of the feeding barrel, and a cooling barrel cover is installed on the outside of the feeding barrel, a discharge pipe is installed at the end of the bottom of the feeding barrel away from the first motor, and a control panel is installed at the top of the feeding barrel away from the first motor, a water inlet pipe is installed at the end of the top of the cooling barrel cover close to the first motor, and a second motor is installed at the bottom of the cooling barrel cover, a second stirring shaft extending to the inside of the cooling barrel cover is installed at the output end of the second motor, and a first bevel gear is installed on the outside of the second stirring shaft, first stirring rods are evenly installed on the outside of the second stirring shaft, and the output end of the control panel is electrically connected to the input ends of the first motor and the second motor respectively through wires.

[0006] Preferably, the output end of the first motor passes through the feeding barrel, and a spiral feeding rod is installed at the output end of the first motor.

[0007] Preferably, hinge shafts are installed at the tops of both ends of the feed pipe, and sealing baffles are hinged on the outer sides of the hinge shafts, and return springs are installed at the bottoms of the sealing baffles, and the ends of the return springs away from the sealing baffles are connected to the feed pipe.

[0008] Preferably, bearings are installed at the bottoms of both ends of the cooling cylinder cover, and the first stirring shafts are installed inside the bearings, and the second stirring rods are evenly installed on the outsides of the first stirring shafts.

[0009] Preferably, a second bevel gear meshing with the first bevel gear is installed at one end of the first stirring shaft away from the bearing.

[0010] Preferably, stoppers are installed at the tops of both ends of the feed pipe.

[0011] Preferably, a drain pipe is installed at the bottom of the feeding barrel away from the first motor, and a sealing cover is installed at the bottom of the drain pipe.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The auxiliary feeding barrel for the single screw extruder is equipped with a water inlet pipe, a cooling barrel cover and a drain pipe. When in use, the cooling barrel cover is installed on the outside of the feeding barrel, and cold water is added to the inside of the cooling barrel cover through the water inlet pipe, so that the cold water is collected inside the cooling barrel cover, that is, the cold water can completely cover the outside of the feeding barrel, and different positions of the feeding barrel can be cooled, and there is no cooling dead corner;

[0014] 2. The auxiliary feeding barrel for the single screw extruder is equipped with a first stirring shaft, a second motor, a first stirring rod and a second stirring rod. When in use, the second motor drives the second stirring shaft to rotate, which can simultaneously drive the first stirring rod and the second stirring rod to rotate. The first stirring rod and the second stirring rod are used for stirring, so that the water inside the cooling barrel cover can be stirred evenly, so that the water temperature at different positions is kept uniform, which is conducive to keeping the temperature at different positions of the feeding barrel uniform;

[0015] 3. The auxiliary feeding barrel of the single-screw extruder is equipped with a reset spring, a hinged shaft and a sealing baffle. After the feeding is completed, the reset spring pushes the sealing baffle to rotate and reset. The two sets of sealing baffles cover the feed pipe to prevent the plastic raw materials inside the feed pipe from leaking out, and the feeding barrel and the feed pipe can be kept sealed, which is conducive to keeping the internal temperature of the feeding barrel within a constant range. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the front cross-sectional view of the utility model;

[0017] Figure 2It is a main schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the main cross-sectional view of the feed pipe of the utility model

[0019] Figure 4 For this utility model Figure 1 A magnified view of the structure in Figure 2.

[0020] In the figure: 1. first motor; 2. feeding barrel; 3. feeding pipe; 4. water inlet pipe; 5. spiral feeding rod; 6. cooling barrel cover; 7. control panel; 8. bearing; 9. first stirring shaft; 10. second motor; 11. first stirring rod; 12. second stirring rod; 13. drain pipe; 14. discharge pipe; 15. return spring; 16. hinge shaft; 17. sealing baffle; 18. block; 19. second stirring shaft; 20. first bevel gear; 21. second bevel gear. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 , the utility model provides an embodiment: an auxiliary feeding barrel for a single-screw extruder, comprising a feeding barrel 2, a feeding pipe 3 and a cooling barrel cover 6, a first motor 1 is installed at one end of the feeding barrel 2, the first motor 1 model here can be Y90S-2, a cooling barrel cover 6 is installed on the outside of the feeding barrel 2, a discharge pipe 14 is installed at the end of the bottom of the feeding barrel 2 away from the first motor 1, and a control panel 7 is installed on the top of the feeding barrel 2 away from the first motor 1, a water inlet pipe 4 is installed at the end of the top of the cooling barrel cover 6 close to the first motor 1, and a second motor 10 is installed at the bottom of the cooling barrel cover 6, the second motor 10 model here can be Y90S-2, a second stirring shaft 19 extending to the inside of the cooling barrel cover 6 is installed at the output end of the second motor 10, and a first bevel gear 20 is installed on the outside of the second stirring shaft 19, and first stirring rods 11 are evenly installed on the outside of the second stirring shaft 19, and the output end of the control panel 7 is electrically connected to the input ends of the first motor 1 and the second motor 10 respectively through wires.

[0023] In this implementation:

[0024] Furthermore, the output end of the first motor 1 passes through the feeding barrel 2, and a spiral feed rod 5 is installed at the output end of the first motor 1. The first motor 1 drives the spiral feed rod 5 to rotate at a constant speed, so that the raw materials can be transported at a constant speed through the spiral feed rod 5, so that the raw materials move to the position of the discharge pipe 14 and are added to the inside of the single screw extruder through the discharge pipe 14.

[0025] Furthermore, hinge shafts 16 are installed at the tops of both ends of the feed pipe 3, and sealing baffles 17 are hinged on the outer sides of the hinge shafts 16. Return springs 15 are installed at the bottoms of the sealing baffles 17, and the ends of the return springs 15 away from the sealing baffles 17 are connected to the feed pipe 3. After the feeding is completed, the return springs 15 push the sealing baffles 17 to rotate and reset. The feed pipe 3 is blocked by two groups of sealing baffles 17, which can prevent the plastic raw materials inside the feed pipe 3 from leaking out, and can keep the feeding barrel 2 and the inside of the feed pipe 3 sealed, which is beneficial to keep the internal temperature of the feeding barrel 2 within a constant range.

[0026] Furthermore, bearings 8 are installed at the bottom of both ends of the cooling cylinder cover 6, and the first stirring shaft 9 is installed inside the bearing 8, and the second stirring rod 12 is evenly installed on the outside of the first stirring shaft 9. By stirring with the first stirring rod 11 and the second stirring rod 12, the water inside the cooling cylinder cover 6 can be stirred evenly, so that the water temperature at different positions remains uniform, which is beneficial to keep the temperature at different positions of the feeding machine barrel 2 uniform.

[0027] Furthermore, a second bevel gear 21 meshing with the first bevel gear 20 is installed at one end of the first stirring shaft 9 away from the bearing 8. The second motor 10 drives the first stirring rod 11 to rotate through the second stirring shaft 19, and the second stirring shaft 19 drives the second bevel gear 21 to rotate through the first bevel gear 20. The second bevel gear 21 can drive the second stirring rod 12 to rotate through the first stirring shaft 9.

[0028] Furthermore, blocks 18 are installed at the tops of both ends of the feed pipe 3 , and the blocks 18 can prevent the sealing baffle 17 from rotating upward, thereby preventing the raw materials inside the feed pipe 3 from leaking out.

[0029] Furthermore, a drain pipe 13 is installed at the bottom of the feeding barrel 2 away from the first motor 1, and a sealing cover is installed at the bottom of the drain pipe 13. By opening the sealing cover on the drain pipe 13, the water inside the cooling barrel cover 6 can be discharged through the drain pipe 13.

[0030] Working principle:

[0031] When in use, the device is connected to a power source, and cold water can be filled into the cooling cylinder cover 6 through the water inlet pipe 4;

[0032] When feeding, plastic raw materials can be put into the feed pipe 3, and the raw materials fall onto the sealing baffle 17, so that the sealing baffle 17 squeezes the return spring 15, and the sealing baffle 17 is stressed and rotates along the hinge position with the hinge shaft 16 as the center of the circle, so that the raw materials can be fed into the feeding barrel 2 through the feed pipe 3;

[0033] The staff can start the first motor 1 through the control panel 7, so that the first motor 1 drives the screw feed rod 5 to rotate at a constant speed, and the raw material can be uniformly transported through the screw feed rod 5, so that the raw material moves to the position of the discharge pipe 14, and is added into the single screw extruder through the discharge pipe 14;

[0034] During the feeding process, the raw materials inside the feeding barrel 2 can be cooled by the cold water inside the cooling barrel cover 6 to prevent the plastic raw materials from being plasticized prematurely when heated;

[0035] At the same time, the staff can start the second motor 10 through the control panel 7, and the second motor 10 drives the first stirring rod 11 to rotate through the second stirring shaft 19, and the second stirring shaft 19 drives the second bevel gear 21 to rotate through the first bevel gear 20, so that the second bevel gear 21 drives the second stirring rod 12 to rotate through the first stirring shaft 9, and the first stirring rod 11 and the second stirring rod 12 are stirred to stir the water inside the cooling cylinder cover 6 evenly, so that the water temperature at different positions is kept uniform, which is conducive to keeping the temperature at different positions of the feeding barrel 2 uniform;

[0036] When the water temperature inside the cooling cylinder cover 6 is high, the feeding can be stopped first, and the staff can open the sealing cover on the drain pipe 13 to drain the water inside the cooling cylinder cover 6 through the drain pipe 13, then cover the sealing cover, and add cold water to the cooling cylinder cover 6 again.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An auxiliary feeding barrel for a single screw extruder, comprising a feeding barrel (2), a feed pipe (3) and a cooling barrel cover (6), characterized in that: A first motor (1) is installed at one end of the feeder barrel (2), and a cooling barrel cover (6) is installed on the outer side of the feeder barrel (2); a discharge pipe (14) is installed at the end of the bottom of the feeder barrel (2) away from the first motor (1), and a control panel (7) is installed at the top of the end of the feeder barrel (2) away from the first motor (1); a water inlet pipe (4) is installed at the end of the top of the cooling barrel cover (6) close to the first motor (1), and a second motor (10) is installed at the bottom of the cooling barrel cover (6); a second stirring shaft (19) extending into the interior of the cooling barrel cover (6) is installed at the output end of the second motor (10), and a first bevel gear (20) is installed on the outer side of the second stirring shaft (19); a first stirring rod (11) is evenly installed on the outer side of the second stirring shaft (19); and the output end of the control panel (7) is electrically connected to the input ends of the first motor (1) and the second motor (10) respectively through wires.

2. The auxiliary feeding barrel for a single screw extruder according to claim 1, characterized in that: The output end of the first motor (1) passes through the feeding barrel (2), and a screw feeding rod (5) is installed at the output end of the first motor (1).

3. The auxiliary feeding barrel for a single screw extruder according to claim 1, characterized in that: The tops of both ends of the feed pipe (3) are both equipped with hinge shafts (16), and the outer sides of the hinge shafts (16) are both hinged with sealing baffles (17), and the bottoms of the sealing baffles (17) are both equipped with return springs (15), and the ends of the return springs (15) away from the sealing baffles (17) are both connected to the feed pipe (3).

4. The auxiliary feeding barrel for a single screw extruder according to claim 1, characterized in that: The bottoms of both ends of the cooling cylinder cover (6) are both installed with bearings (8), and the insides of the bearings (8) are both installed with first stirring shafts (9), and the outsides of the first stirring shafts (9) are both evenly installed with second stirring rods (12).

5. The auxiliary feeding barrel for a single screw extruder according to claim 4, characterized in that: A second bevel gear (21) meshing with the first bevel gear (20) is installed at one end of the first stirring shaft (9) away from the bearing (8).

6. The auxiliary feeding barrel for a single screw extruder according to claim 1, characterized in that: Stoppers (18) are installed at the tops of both ends of the feed pipe (3).

7. The auxiliary feeding barrel for a single screw extruder according to claim 1, characterized in that: A drainage pipe (13) is installed at the bottom of the end of the feeding barrel (2) away from the first motor (1), and a sealing cover is installed at the bottom of the drainage pipe (13).

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