Miniature gear pump type plastic wire extruder

Abstract

The utility model provides a miniature gear pump type plastic wire extruder. The miniature gear pump type plastic wire extruder comprises a base, a material box is fixedly installed at the top of the base, a gear pump assembly is installed on the base, a feeding pipe and a discharging pipe are fixedly installed on the two sides of the gear pump assembly respectively, one end of the feeding pipe is fixedly connected with the material box, an extrusion head is installed at one end of the discharging pipe, and the other end of the discharging pipe is fixedly connected with the material box. An L-shaped plate is fixedly mounted at the top of the extrusion head, a first motor is fixedly mounted on the L-shaped plate, a rotating disc is fixedly mounted on an output shaft of the first motor, a cutter is fixedly mounted on the rotating disc, and one side of the cutter is in contact with the extrusion head. The miniature gear pump type plastic wire extruder provided by the utility model has the advantages that plastic wires can be extruded and produced, extrusion heads with different specifications can be conveniently replaced, and the plastic wires can be cut off after the required length of the plastic wires is reached.

Description

Technical Field

[0001] The utility model belongs to the technical field of extruders, in particular to a micro gear pump type plastic wire extruder. Background Art

[0002] As the main material of 3D printing technology, plastic filament is used more and more widely in various industries. Efficient and high-quality production of plastic filament is of great significance to the promotion of the national economy.

[0003] In the related art, a micro gear pump type plastic filament extrusion system is disclosed, including a hopper, an extrusion device, a cooling device, a collecting device, a PLC controller, a first and a second stepper motor, the extrusion device including a body, a front cover and a rear cover, a cavity is provided on the body, and a helical gear type driving gear and a driven gear meshing with each other are provided in the cavity, a feed port connected to the hopper is provided at the upper end of the body, and a discharge port is provided at the lower end, and the front and rear cover are respectively sealed and arranged at the front and rear ends of the body, a heating hole is provided on the hopper and the extrusion device, a heating device is provided in the heating hole, an insulation layer is provided on the outer wall of the hopper and the extrusion device, a temperature sensor is provided at the bottom of the body, a cooling device cools the extruded plastic filament, a collecting device collects the cooled plastic filament, and a PLC controller controls the related devices, which utilizes the helical gear pump type quantitative extrusion principle, has a simple structure, is very small in size and weight, has a fast extrusion speed, is pulsating-free, has low power consumption, and is easy to disassemble.

[0004] However, the above structure still has disadvantages in that the extruder cannot cut off the plastic filament when in use, and it is not convenient to replace the extruder head when producing plastic filaments of different thicknesses.

[0005] Therefore, it is necessary to provide a new micro-gear pump type plastic filament extruder to solve the above-mentioned technical problems. Utility Model Content

[0006] The technical problem solved by the utility model is to provide a micro gear pump type plastic filament extruder which can extrude plastic filaments, is convenient for replacing extrusion heads of different specifications, and can cut the plastic filaments after the plastic filaments reach the required length.

[0007] In order to solve the above technical problems, the micro gear pump type plastic filament extruder provided by the utility model includes: a base, a material box is fixedly installed on the top of the base, a gear pump assembly is installed on the base, a feed pipe and a discharge pipe are fixedly installed on both sides of the gear pump assembly, one end of the feed pipe is fixedly connected to the material box, an extrusion head is installed on one end of the discharge pipe, an L-shaped plate is fixedly installed on the top of the extrusion head, a first motor is fixedly installed on the L-shaped plate, a turntable is fixedly installed on the output shaft of the first motor, a cutter is fixedly installed on the turntable, and one side of the cutter is in contact with the extrusion head.

[0008] As a further scheme of the utility model, the gear pump assembly is provided with a pump body, a back plate, a front plate, multiple fixing bolts, multiple nuts, two fixed shafts, two gears and a second motor. The back plate and the front plate are respectively arranged on both sides of the pump body. Multiple fixing bolts are fixedly installed on the back plate, and multiple fixing bolts all penetrate the pump body and the front plate. Multiple nuts are respectively threaded on the multiple fixing bolts. The two fixed shafts are rotatably installed on the back plate and the front plate. The two gears are respectively fixedly mounted on the two fixed shafts, and the two gears are meshed with each other. The second motor is fixedly installed on the top of the base, and the output shaft of the second motor is fixedly connected to one end of the corresponding fixed shaft.

[0009] As a further solution of the utility model, two support blocks are fixedly installed at the bottom of the gear pump assembly, and the bottoms of the two support blocks are fixedly connected to the base.

[0010] As a further solution of the utility model, a plurality of first bolts are fixedly installed on the discharge pipe, and the plurality of first bolts are all threadedly connected to the extrusion head.

[0011] As a further solution of the utility model, a T-shaped support rod is fixedly installed at the bottom of the extrusion head, and a plurality of second bolts are installed on the T-shaped support rod, and the plurality of second bolts are all threadedly connected to the base.

[0012] Compared with the related art, the micro gear pump type plastic wire extruder provided by the utility model has the following beneficial effects:

[0013] 1. The utility model can extrude plastic wires by arranging a material box, a gear pump assembly, a feed pipe, a discharge pipe and an extruder head;

[0014] 2. The utility model provides an L-shaped plate, a first motor, a turntable and a cutter, so that the plastic wire can be cut after the plastic wire reaches a required length. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 A schematic diagram of the three-dimensional structure of the micro gear pump type plastic filament extruder provided by the utility model;

[0017] Figure 2 This is a schematic diagram of the exploded structure of the micro gear pump type plastic wire extruder provided by the utility model;

[0018] Figure 3 The utility model is a partial cross-sectional structural schematic diagram of a micro gear pump type plastic filament extruder provided by the utility model.

[0019] In the figure: 1. base; 2. material box; 3. gear pump assembly; 4. feed pipe; 5. discharge pipe; 6. extruder head; 7. L-shaped plate; 8. first motor; 9. turntable; 10. cutter; 11. pump body; 12. back plate; 13. front plate; 14. fixing bolt; 15. nut; 16. fixing shaft; 17. gear; 18. second motor. DETAILED DESCRIPTION

[0020] Please refer to Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A schematic diagram of the three-dimensional structure of the micro gear pump type plastic filament extruder provided by the utility model; Figure 2 This is a schematic diagram of the exploded structure of the micro gear pump type plastic wire extruder provided by the utility model; Figure 3 The present invention provides a partial cross-sectional structural schematic diagram of a micro gear pump type plastic filament extruder. The micro gear pump type plastic filament extruder comprises: a base 1, a material box 2 is fixedly mounted on the top of the base 1, a gear pump assembly 3 is mounted on the base 1, a feed pipe 4 and a discharge pipe 5 are fixedly mounted on both sides of the gear pump assembly 3, one end of the feed pipe 4 is fixedly connected to the material box 2, an extrusion head 6 is mounted on one end of the discharge pipe 5, an L-shaped plate 7 is fixedly mounted on the top of the extrusion head 6, a first motor 8 is fixedly mounted on the L-shaped plate 7, a turntable 9 is fixedly mounted on the output shaft of the first motor 8, a cutter 10 is fixedly mounted on the turntable 9, and one side of the cutter 10 is in contact with the extrusion head 6.

[0021] like Figure 2 As shown, the gear pump assembly 3 is provided with a pump body 11, a back plate 12, a front plate 13, a plurality of fixing bolts 14, a plurality of nuts 15, two fixed shafts 16, two gears 17 and a second motor 18. The back plate 12 and the front plate 13 are respectively arranged on both sides of the pump body 11. A plurality of fixing bolts 14 are fixedly installed on the back plate 12. The plurality of fixing bolts 14 all penetrate the pump body 11 and the front plate 13. The plurality of nuts 15 are respectively threadedly sleeved on the plurality of fixing bolts 14. The two fixed shafts 16 are rotatably installed on the back plate 12 and the front plate 13. The two gears 17 are respectively fixedly sleeved on the two fixed shafts 16. The two gears 17 are meshed with each other. The second motor 18 is fixedly installed on the top of the base 1. The output shaft of the second motor 18 is fixedly connected to one end of the corresponding fixed shaft 16.

[0022] By setting the gear pump assembly 3, when the two gears 17 rotate, low pressure is generated at the suction port to extract the material in the material box 2, and high pressure is generated at the discharge port to transport the material to the extruder head 6 to extrude the plastic filament.

[0023] like Figure 1 As shown, two support blocks are fixedly installed at the bottom of the gear pump assembly 3, and the bottoms of the two support blocks are fixedly connected to the base 1;

[0024] By providing the support block, the gear pump assembly 3 can be supported and the stability of the gear pump assembly 3 is improved.

[0025] like Figure 1 As shown, a plurality of first bolts are fixedly mounted on the discharge pipe 5, and the plurality of first bolts are all threadedly connected to the extrusion head 6;

[0026] By providing the first bolt, the extrusion head 6 can be mounted on the discharge pipe 5 , and the extrusion head 6 can be disassembled and replaced when the production specifications of the plastic filament need to be changed.

[0027] like Figure 1 As shown, a T-shaped support rod is fixedly installed at the bottom of the extrusion head 6, and a plurality of second bolts are installed on the T-shaped support rod, and the plurality of second bolts are all threadedly connected to the base 1;

[0028] By providing the T-shaped support rod and the second bolt, the extrusion head 6 can be supported and fixed, thereby improving the stability of the extrusion head 6.

[0029] The working principle of the micro gear pump type plastic wire extruder provided by the utility model is as follows:

[0030] When in use, the second motor 18 is started, and the second motor 18 drives the fixed shaft 16 to rotate, and the two gears 17 are meshed, so that the two gears 17 rotate synchronously in opposite directions. At this time, low pressure is generated at the suction port, and the material in the material box 2 is extracted through the feed pipe 4, and high pressure is generated at the discharge port, so that the material can be transported to the extruder head 6 through the discharge pipe 5, and the plastic wire is extruded and formed. After the plastic wire reaches the required length, the first motor 8 is started, and the first motor 8 drives the turntable 9 to rotate, and the turntable 9 drives the cutter 10 to rotate, so that the plastic wire can be cut off. When it is necessary to produce plastic wires of different specifications, the extruder head 6 needs to be replaced. At this time, the extruder head 6 can be replaced by removing the first bolt and the second bolt.

[0031] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0032] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0033] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A micro gear pump type plastic wire extruder, characterized in that: include: A base, a material box is fixedly installed on the top of the base, a gear pump assembly is installed on the base, a feed pipe and a discharge pipe are fixedly installed on both sides of the gear pump assembly, one end of the feed pipe is fixedly connected to the material box, an extrusion head is installed on one end of the discharge pipe, an L-shaped plate is fixedly installed on the top of the extrusion head, a first motor is fixedly installed on the L-shaped plate, a turntable is fixedly installed on the output shaft of the first motor, a cutter is fixedly installed on the turntable, and one side of the cutter is in contact with the extrusion head.

2. The micro gear pump type plastic filament extruder according to claim 1, characterized in that: The gear pump assembly is provided with a pump body, a back plate, a front plate, multiple fixing bolts, multiple nuts, two fixed shafts, two gears and a second motor. The back plate and the front plate are respectively arranged on both sides of the pump body. Multiple fixing bolts are fixedly installed on the back plate, and the multiple fixing bolts all penetrate the pump body and the front plate. The multiple nuts are respectively threadedly sleeved on the multiple fixing bolts. The two fixed shafts are rotatably installed on the back plate and the front plate. The two gears are respectively fixedly sleeved on the two fixed shafts, and the two gears are meshed with each other. The second motor is fixedly installed on the top of the base, and the output shaft of the second motor is fixedly connected to one end of the corresponding fixed shaft.

3. The micro gear pump type plastic filament extruder according to claim 1, characterized in that: Two support blocks are fixedly installed at the bottom of the gear pump assembly, and the bottoms of the two support blocks are fixedly connected to the base.

4. The micro gear pump type plastic filament extruder according to claim 1, characterized in that: A plurality of first bolts are fixedly mounted on the discharge pipe, and the plurality of first bolts are all threadedly connected to the extrusion head.

5. The micro gear pump type plastic filament extruder according to claim 1, characterized in that: A T-shaped support rod is fixedly installed at the bottom of the extrusion head, and a plurality of second bolts are installed on the T-shaped support rod, and the plurality of second bolts are all threadedly connected to the base.

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