Energy-saving plastic extruder

Abstract

The utility model relates to the technical field of plastic extruders, and provides an energy-saving plastic extruder which comprises a fixed box, an extrusion assembly is arranged in the fixed box, a heating mechanism is fixedly installed on the outer side wall of the extrusion assembly, a fixed shell is installed on the fixed box in a penetrating mode, and a feeding pipe and a heat conduction pipe are installed on the inner bottom wall of the fixed shell in a penetrating mode. And the bottom of the feeding pipe communicates with the extrusion assembly, the number of the heat conduction pipes is two, the bottom ends of the two heat conduction pipes both extend to the inner side of the fixing box, and the other ends of the two heat conduction pipes both communicate with the feeding pipe. The heating mechanism is arranged in the fixed box, so that when the heating mechanism carries out hot melting on plastic in the extrusion assembly, heat of the heating mechanism in the fixed box can enter the feeding pipe and preheat the plastic in the feeding pipe, the plastic melting efficiency can be improved, and energy consumption can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic extruders, in particular to an energy-saving plastic extruder. Background Art

[0002] In plastic extrusion molding equipment, plastic extruder is usually called the main machine, and the subsequent equipment plastic extrusion molding machine is called the auxiliary machine. After more than 100 years of development, plastic extruder has evolved from the original single screw to twin-screw, multi-screw, and even screw-free models.

[0003] The known Chinese public authorized utility model CN217169647U discloses an energy-saving plastic pipe extrusion device, which belongs to the field of plastic pipe extrusion devices. An energy-saving plastic pipe extrusion device includes a base, the top of the base is fixedly connected to an extrusion box, the left side of the extrusion box is fixedly connected to a driving motor, the output end of the driving motor is fixedly connected to a rotating shaft through a coupling, the right end of the rotating shaft is fixedly connected to an extrusion screw, and the interior of the extrusion box is fixedly connected to a heating cylinder. The utility model supports and fixes the device through the base, injects the raw material into the interior of the extrusion box through the feed hopper, and then starts the driving motor to drive the rotating shaft to rotate, and the rotating shaft drives the extrusion screw to rotate to extrude the raw material to the extrusion die, and the raw material is heated when passing through the interior of the heating cylinder, so that the raw material is melted, thereby realizing that the device has the advantages of preventing floating dust and impurities from affecting the quality of pipeline molding during pipeline molding, and having a good cooling effect.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned scheme has the following problems: the existing technology has poor energy-saving effect during use and cannot preheat the plastic, which results in a slow plastic melting efficiency, thereby causing energy waste. Secondly, the existing technology cannot crush the plastic particles during use, so that larger particles will melt slowly or incompletely, which is not energy-saving and reduces the extrusion efficiency. At the same time, the extruder is prone to clogging. Therefore, an energy-saving plastic extruder is needed. Utility Model Content

[0005] In order to solve the above problems, the utility model proposes an energy-saving plastic extruder. The technical solution solves the problems proposed in the above background technology that the energy-saving effect is poor, the plastic cannot be preheated, and the plastic particles cannot be crushed, so that larger particles will melt slowly or incompletely, which is not energy-saving and reduces the extrusion efficiency. At the same time, the extruder is prone to clogging.

[0006] To achieve the above-mentioned purpose, the utility model provides an energy-saving plastic extruder, comprising a fixed box, an extrusion assembly is arranged inside the fixed box, and a heating mechanism is fixedly installed on the outer side wall of the extrusion assembly;

[0007] A fixed shell is installed through the fixed box, and a feed pipe and a heat conduction pipe are installed through the inner bottom wall of the fixed shell, and the bottom of the feed pipe is connected to the extrusion assembly. There are two heat conduction pipes, and the bottom ends of the two heat conduction pipes extend to the inner side of the fixed box, and the other ends of the two heat conduction pipes are connected to the feed pipe;

[0008] The inner walls of the two heat-conducting pipes are fixedly mounted with strip plates, the strip plates are penetrated with mounting rods, and the mounting rods are rotatably connected to the strip plates, the tops of the mounting rods are fixedly connected with fan blades, the bottoms of the mounting rods are fixedly mounted with active bevel gears, the fixed shell is provided with a driving assembly, and the driving assembly is connected to the active bevel gears;

[0009] The extrusion assembly is provided with a transmission assembly, and the extrusion assembly is connected to the drive assembly through the transmission assembly;

[0010] A crushing assembly is arranged inside the feed pipe, a connecting assembly is arranged on the fixed shell, one end of the connecting assembly is fixedly connected to the crushing assembly, and the other end of the connecting assembly is connected to the transmission assembly.

[0011] Optionally, the driving assembly includes a transmission rod installed through the fixed shell and the feed pipe, the transmission rod is rotatably connected to the fixed shell and the feed pipe, two driven bevel gears are fixedly installed on the outer wall of the transmission rod, the driven bevel gears are meshingly connected to the driving bevel gears, and the extrusion assembly is connected to the driving assembly through the transmission assembly.

[0012] Optionally, a plurality of baffles are fixedly mounted in sequence on the outer wall of the transmission rod in a circular array, and the plurality of baffles are all located on the inner side of the feed pipe.

[0013] Optionally, the transmission assembly includes a second synchronous wheel fixedly mounted on the extrusion assembly, a first synchronous wheel is fixedly mounted on one end of the transmission rod, and the second synchronous wheel is meshingly connected to the first synchronous wheel via a synchronous belt.

[0014] Optionally, the extrusion assembly includes an extrusion shell installed through the fixed box, a rotating rod is rotatably installed on one side of the inner wall of the extrusion shell, a spiral blade is fixedly installed on the outer wall of the rotating rod, a motor is fixedly installed on one side of the extrusion shell through a fixed plate, and the output end of the motor is fixedly connected to the rotating rod, and the second synchronous wheel is fixedly installed on the outer wall of the rotating rod.

[0015] Optionally, a filter screen is provided at one end of each of the two heat-conducting pipes close to the feeding pipe, and the filter screen is fixedly installed inside the heat-conducting pipe.

[0016] Optionally, the pulverizing assembly includes two pulverizing rollers arranged inside the feed pipe, both ends of the two pulverizing rollers are rotatably connected to the feed pipe, one end of the two pulverizing rollers is fixedly mounted with a gear, and the two gears are meshingly connected.

[0017] Optionally, the connecting assembly includes a connecting rod passing through the fixed box, the connecting rod is rotatably connected to the fixed box, one end of the connecting rod is fixedly connected to one of the gears, and the other end of the connecting rod is fixedly mounted with a third synchronous wheel, and the third synchronous wheel is connected to the transmission assembly through a synchronous belt.

[0018] Optionally, positioning rods are rotatably mounted on one side of the fixing box and the extrusion assembly, and the two positioning rods are located on one side of the connecting assembly.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. By setting the fixed shell, heat pipe, strip plate, mounting rod, fan blade, active bevel gear, drive assembly and transmission assembly, when the heating mechanism heat-melts the plastic inside the extrusion assembly, the heat of the heating mechanism inside the fixed box can enter the feed pipe and preheat the plastic in the feed pipe, thereby improving the melting efficiency of the plastic and saving energy consumption.

[0021] 2. The crushing assembly, connecting assembly, transmission assembly and positioning rod can be used to crush the plastic discharged from the feed pipe, thereby preventing the falling plastic particles from melting slowly or incompletely due to uneven sizes, thereby improving the efficiency of hot melt extrusion and saving energy.

[0022] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a cross-sectional structural schematic diagram of the fixed shell of the utility model;

[0024] Figure 2 It is a cross-sectional structural schematic diagram of the fixed box of the utility model;

[0025] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 4 It is an enlarged structural schematic diagram of A of the utility model;

[0027] Figure 5 It is an enlarged structural schematic diagram of B of the utility model.

[0028] In the figure: 1. fixed box; 2. extrusion assembly; 21. extrusion shell; 22. rotating rod; 23. spiral blade; 24. motor; 3. heating mechanism; 4. fixed shell; 5. feed pipe; 6. heat pipe; 7. strip plate; 8. mounting rod; 9. fan blade; 10. transmission assembly; 101. first synchronous wheel; 102. second synchronous wheel; 11. crushing assembly; 1101. crushing roller; 1102. gear; 12. connecting assembly; 1201. connecting rod; 1202. third synchronous wheel; 13. positioning rod; 14. baffle; 15. filter screen; 16. active bevel gear; 17. driving assembly; 1701. transmission rod; 1702. driven bevel gear. DETAILED DESCRIPTION

[0029] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings, but the protection scope of the utility model is not limited to the following.

[0030] Reference Figure 1-5 As shown, an energy-saving plastic extruder solves the problem that the energy-saving effect is poor, the plastic cannot be preheated, and the plastic particles cannot be crushed, so that larger particles will melt slowly or incompletely, which is not energy-saving and reduces the extrusion efficiency. At the same time, the extruder is prone to clogging.

[0031] To achieve the above purpose, the utility model provides an energy-saving plastic extruder, comprising a fixed box 1, an extrusion assembly 2 is arranged inside the fixed box 1, and a heating mechanism 3 is fixedly installed on the outer wall of the extrusion assembly 2;

[0032] A fixed shell 4 is installed through the fixed box 1, and a feed pipe 5 and a heat conduction pipe 6 are installed through the inner bottom wall of the fixed shell 4, and the bottom of the feed pipe 5 is connected to the extrusion assembly 2. There are two heat conduction pipes 6, and the bottom ends of the two heat conduction pipes 6 extend to the inner side of the fixed box 1, and the other ends of the two heat conduction pipes 6 are connected to the feed pipe 5;

[0033] The inner walls of the two heat conducting pipes 6 are fixedly mounted with strip plates 7, the strip plates 7 are penetrated with mounting rods 8, and the mounting rods 8 are rotatably connected to the strip plates 7, the tops of the mounting rods 8 are fixedly connected with fan blades 9, the bottoms of the mounting rods 8 are fixedly mounted with active bevel gears 16, and the fixed shell 4 is provided with a driving assembly 17, and the driving assembly 17 is connected to the active bevel gear 16;

[0034] The two heat-conducting pipes 6 are both provided with a filter screen 15 at one end close to the feed pipe 5, and the filter screen 15 is fixedly installed inside the heat-conducting pipe 6;

[0035] The extrusion assembly 2 is provided with a transmission assembly 10, and the extrusion assembly 2 is connected to the driving assembly 17 through the transmission assembly 10;

[0036] A crushing assembly 11 is disposed inside the feed pipe 5 , a connecting assembly 12 is disposed on the fixed shell 4 , one end of the connecting assembly 12 is fixedly connected to the crushing assembly 11 , and the other end of the connecting assembly 12 is connected to the transmission assembly 10 .

[0037] The utility model provides an energy-saving plastic extruder. When in use, the plastic is heated and extruded into the component 2 through the feed pipe 5. While being added, the plastic is prevented from being heated into the heat-conducting pipe 6 by the filter screen 15. Then, the plastic inside the extrusion component 2 is melted by the heating mechanism 3. Then, the melted plastic is extruded through the extrusion component 2. In addition, when the extrusion component 2 is started, the extrusion component 2 drives the driving component 17 to rotate through the transmission component 10. Then, while the driving component 17 is rotating, it also drives the active bevel gear 16 meshed with it, so that the mounting rod 8 on the strip plate 7 can drive the fan blade 9 to rotate. , and the heat of the heating mechanism 3 inside the fixed box 1 can quickly enter the feed pipe 5 under the action of the fan blades 9 and preheat the plastic in the feed pipe 5, thereby improving the plastic melting efficiency and saving energy consumption. Then, when the transmission component 10 drives the driving component 17 to rotate, the transmission component 10 synchronously drives the connecting component 12, and then the connecting component 12 drives the crushing component 11, so that the crushing component 11 can crush the plastic falling from the feed pipe 5, thereby avoiding the falling plastic particles from melting slowly or incompletely due to uneven size, thereby improving the hot melt extrusion efficiency and saving energy.

[0038] Further, the driving assembly 17 includes a transmission rod 1701 installed through the fixed shell 4 and the feed pipe 5, the transmission rod 1701 is rotatably connected to the fixed shell 4 and the feed pipe 5, two driven bevel gears 1702 are fixedly installed on the outer wall of the transmission rod 1701, and the driven bevel gears 1702 are meshedly connected with the driving bevel gear 16, the extrusion assembly 2 is connected to the driving assembly 17 through the transmission assembly 10, and a plurality of baffles 14 are fixedly installed in sequence on the outer wall of the transmission rod 1701 in a circular array, and the plurality of baffles 14 are all located on the inner side of the feed pipe 5;

[0039] Specifically, the transmission rod 1701 is driven to rotate by the transmission assembly 10, and then the rotating transmission rod 1701 drives the baffle 14 installed on its outer wall and the driven bevel gear 1702 to rotate synchronously, and then with the cooperation of the baffle 14, the discharge amount and speed in the feed pipe 5 can be controlled, and the blockage of the plastic in the feed pipe 5 can be avoided. At the same time, the rotating driven bevel gear 1702 drives the installation rod 8 and the fan blade 9 to rotate through the active bevel gear 16 meshing with it, so that the heat of the heating mechanism 3 inside the fixed box 1 can quickly enter the feed pipe 5 under the action of the fan blade 9 and preheat the plastic in the feed pipe 5, thereby improving the plastic melting efficiency and saving energy consumption.

[0040] Further, the transmission assembly 10 includes a second synchronous wheel 102 fixedly mounted on the extrusion assembly 2, and a first synchronous wheel 101 is fixedly mounted on one end of the transmission rod 1701, and the second synchronous wheel 102 is meshedly connected with the first synchronous wheel 101 through a synchronous belt;

[0041] Specifically, the extrusion assembly 2 drives the second synchronous wheel 102 to rotate, and then the rotating second synchronous wheel 102 drives the first synchronous wheel 101 through the synchronous belt, so that the driving assembly 17 can rotate.

[0042] Further, the extrusion assembly 2 includes an extrusion shell 21 installed on the fixed box 1, a rotating rod 22 is rotatably installed on one side of the inner wall of the extrusion shell 21, a spiral blade 23 is fixedly installed on the outer side wall of the rotating rod 22, a motor 24 is fixedly installed on one side of the extrusion shell 21 through a fixed plate, and the output end of the motor 24 is fixedly connected to the rotating rod 22, and the second synchronous wheel 102 is fixedly installed on the outer side wall of the rotating rod 22;

[0043] Specifically, the motor 24 drives the rotating rod 22 to rotate, and then the rotating rotating rod 22 passes through the spiral blade 23, thereby driving the plastic in the extrusion shell 21 to move and extrude.

[0044] Furthermore, the crushing assembly 11 includes two crushing rollers 1101 disposed inside the feed pipe 5, both ends of the two crushing rollers 1101 are rotatably connected to the feed pipe 5, one end of the two crushing rollers 1101 is fixedly mounted with a gear 1102, and the two gears 1102 are meshedly connected;

[0045] Specifically, the rotating connecting component 12 drives the gear 1102 and the crushing roller 1101 connected thereto to rotate, and then the rotating gear 1102 drives another gear 1102 meshingly connected thereto, so that the two crushing rollers 1101 can rotate synchronously and crush the plastic falling from the feed pipe 5, thereby preventing the falling plastic particles from melting slowly or incompletely due to uneven size.

[0046] Further, the connecting assembly 12 includes a connecting rod 1201 that penetrates the fixed box 1, the connecting rod 1201 is rotatably connected to the fixed box 1, one end of the connecting rod 1201 is fixedly connected to one of the gears 1102, and the other end of the connecting rod 1201 is fixedly mounted with a third synchronous wheel 1202, and the third synchronous wheel 1202 is connected to the transmission assembly 10 through a synchronous belt;

[0047] Specifically, when the second synchronous wheel 102 drives the first synchronous wheel 101 through the synchronous belt, the synchronous belt also drives the third synchronous wheel 1202, so that the third synchronous wheel 1202 can drive the crushing assembly 11 to rotate and crush the falling plastic with the cooperation of the connecting rod 1201.

[0048] Furthermore, a positioning rod 13 is rotatably mounted on one side of the fixed box 1 and the extrusion assembly 2, and the two positioning rods 13 are both located on one side of the connecting assembly 12;

[0049] Specifically, by positioning the rod 13, the synchronous belt can be in close contact with the first synchronous wheel 101, the second synchronous wheel 102 and the third synchronous wheel 1202 and drive them to rotate, thereby preventing the synchronous belt from slipping due to loose contact with the first synchronous wheel 101, the second synchronous wheel 102 and the third synchronous wheel 1202.

[0050] The above disclosure is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. An energy-saving plastic extruder, characterized in that: It comprises a fixed box (1), an extrusion assembly (2) is arranged inside the fixed box (1), and a heating mechanism (3) is fixedly mounted on the outer side wall of the extrusion assembly (2); A fixed shell (4) is installed through the fixed box (1), and a feed pipe (5) and a heat conduction pipe (6) are installed through the inner bottom wall of the fixed shell (4), and the bottom of the feed pipe (5) is connected to the extrusion assembly (2). There are two heat conduction pipes (6), and the bottom ends of the two heat conduction pipes (6) extend to the inner side of the fixed box (1), and the other ends of the two heat conduction pipes (6) are connected to the feed pipe (5); The inner walls of the two heat-conducting pipes (6) are fixedly mounted with strip plates (7), the strip plates (7) are penetrated by mounting rods (8), and the mounting rods (8) are rotatably connected to the strip plates (7), the tops of the mounting rods (8) are fixedly connected with fan blades (9), the bottoms of the mounting rods (8) are fixedly mounted with active bevel gears (16), the fixed shell (4) is provided with a driving assembly (17), and the driving assembly (17) is connected to the active bevel gears (16); The extrusion assembly (2) is provided with a transmission assembly (10), and the extrusion assembly (2) is connected to the drive assembly (17) via the transmission assembly (10); A crushing assembly (11) is arranged inside the feed pipe (5), a connecting assembly (12) is arranged on the fixed shell (4), one end of the connecting assembly (12) is fixedly connected to the crushing assembly (11), and the other end of the connecting assembly (12) is connected to the transmission assembly (10).

2. An energy-saving plastic extruder according to claim 1, characterized in that: The driving assembly (17) comprises a transmission rod (1701) which is installed through the fixed shell (4) and the feed pipe (5); the transmission rod (1701) is rotatably connected to the fixed shell (4) and the feed pipe (5); two driven bevel gears (1702) are fixedly installed on the outer wall of the transmission rod (1701); the driven bevel gears (1702) are meshingly connected to the driving bevel gear (16); and the extrusion assembly (2) is connected to the driving assembly (17) via the transmission assembly (10).

3. An energy-saving plastic extruder according to claim 2, characterized in that: A plurality of baffles (14) are fixedly mounted in sequence in a circular array on the outer wall of the transmission rod (1701), and the plurality of baffles (14) are all located on the inner side of the feed pipe (5).

4. An energy-saving plastic extruder according to claim 3, characterized in that: The transmission assembly (10) comprises a second synchronous wheel (102) fixedly mounted on the extrusion assembly (2); a first synchronous wheel (101) is fixedly mounted on one end of the transmission rod (1701); and the second synchronous wheel (102) is meshingly connected to the first synchronous wheel (101) via a synchronous belt.

5. An energy-saving plastic extruder according to claim 4, characterized in that: The extrusion assembly (2) comprises an extrusion shell (21) which is installed through the fixed box (1); a rotating rod (22) is rotatably installed on one side of the inner wall of the extrusion shell (21); a spiral blade (23) is fixedly installed on the outer wall of the rotating rod (22); a motor (24) is fixedly installed on one side of the extrusion shell (21) via a fixed plate, and the output end of the motor (24) is fixedly connected to the rotating rod (22); and the second synchronous wheel (102) is fixedly installed on the outer wall of the rotating rod (22).

6. An energy-saving plastic extruder according to claim 1, characterized in that: A filter screen (15) is provided at one end of the two heat-conducting pipes (6) close to the feed pipe (5), and the filter screen (15) is fixedly installed inside the heat-conducting pipe (6).

7. An energy-saving plastic extruder according to claim 1, characterized in that: The pulverizing assembly (11) comprises two pulverizing rollers (1101) arranged inside a feed pipe (5), both ends of the two pulverizing rollers (1101) being rotatably connected to the feed pipe (5), one end of the two pulverizing rollers (1101) being fixedly mounted with a gear (1102), and the two gears (1102) being meshingly connected.

8. An energy-saving plastic extruder according to claim 7, characterized in that: The connecting assembly (12) comprises a connecting rod (1201) penetrating the fixed box (1); the connecting rod (1201) is rotatably connected to the fixed box (1); one end of the connecting rod (1201) is fixedly connected to one of the gears (1102); a third synchronous wheel (1202) is fixedly mounted on the other end of the connecting rod (1201); and the third synchronous wheel (1202) is connected to the transmission assembly (10) via a synchronous belt.

9. The energy-saving plastic extruder according to claim 1, characterized in that: Positioning rods (13) are rotatably mounted on one side of the fixing box (1) and the extrusion assembly (2), and the two positioning rods (13) are located on one side of the connecting assembly (12).

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