KR20180081652A - Filament Winding system - Google Patents

Abstract

Disclosed is a filament winding system. The filament winding system vertically and horizontally moves a filament guide so as to keep the filament straight without bending by detecting a tension of a filament using a tension sensor, checks on a winding lamination state of the filament by using a filament detection unit, and sequentially laminates and winds the filament by observing a shape of the filament laminated and wound around a roller. In order to wind filaments having different thickness around different winding regions of a single roller, the filament winding system moves a compartment unit and controls a corresponding extruder, a corresponding filament guide, and an encoder, to cause the filaments wound around the roller.

Description

 [0001] Filament Winding System [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filament winding system, and more particularly, to a manufacturing system in which a filament to be extruded for a 3D printer is produced by rolling.

Filaments are manufactured using a plastic material as a printing material for an upwardly stacked 3D printer. The filament is produced by winding a filament by using a rolling machine after producing a filament in an extruder.

However, since the rolling machine can not be grasped how much it is wound, the rolling machine must be continuously checked to reduce the working efficiency. In addition, filaments are not aligned and wound on the winding roller, and a certain length can not be wound, making it difficult to produce filament products having a certain length. In addition, only one filament having a thickness of one kind is wound on one roller. However, in the case of printing using filaments having various thicknesses, it is inconvenient to place a plurality of rollers wound with filaments of different thicknesses around the prying operation, and then to feed the filaments into an extruder of a printer for printing filaments .

It is therefore an object of the present invention to provide a filament winding system capable of producing a filament product having an accurate length.

It is another object of the present invention to provide a filament winding system in which various kinds of filaments can be aligned and wound.

According to an aspect of the present invention, there is provided a filament winding system comprising: an extruder for extruding filaments; A winder having a roller on which the filament extruded from the extruder is wound; An encoder disposed between the extruder and the winder to measure a length of the filament wound on the roller; A filament guide for guiding the filaments extruded from the extruder to the rollers; Notification section; Wherein the controller controls the extruder to extrude the filament and controls the winder to wind the extruded filament, and the controller controls the winder to wind the extruded filament, And a control unit for controlling the notification unit to inform the user when length information of the filament is equal to or at least larger than the information on the proper length do. Thus, a filament product having an accurate length can be produced in the winding machine.

The filament guide may further include a guide body having a through-hole through which the filament passes, and a guide driving unit for moving the guide body, wherein the control unit includes: Calculates a position at which the filament is to be wound on the basis of the position of the filament detected by the filament detecting unit, and controls the guide driving unit according to the calculated position to be wound. Whereby the filaments can be aligned and wound on the winding machine.

The filament guide includes a tension sensor for measuring a tension at which the filament is wound, and the control unit stores data on an appropriate tension to be wound on the roller, and the tension detected by the tension sensor and the appropriate tension And controls the guide driver according to the comparison result. Whereby the filament can be wound so as not to be bent on the winder.

The extruder includes a plurality of extruders, and the extruder includes an extrusion driver for extruding the filaments having different inner diameters. The encoder and the filament guide are attached to the extruder, A pair of escape prevention plates for preventing the filaments wound on the ends of the roller in the axial direction from being separated from the roller, a roller driving unit for driving the roller to rotate between the pair of escape prevention plates, Further comprising: at least one partition which slides along a direction of the filament to form a winding region of the filament, and a division driving unit which drives the at least one division to move along the longitudinal direction of the roller, Wherein the control unit further comprises a user input unit And a control unit for storing information on an appropriate length of the filaments of the different inner diameters wound on the corresponding winding area of the winder and for storing the information on the proper length of the filament of the user input to the user input unit for winding the plurality of filaments having different inner diameters And controls the extrusion driving unit and the roller driving unit so that the plurality of filaments are wound on the plurality of winding areas formed by the division driving unit, The partition drive unit includes an upper body, a lower body coupled to the upper body such that the upper body can move in the up-and-down direction, and a lower body that is slidable And the axis of the roller A partition moving cylinder coupled to the partition moving piston, a partition moving motor for rotating the partition moving cylinder, and a partition moving mechanism for moving the partition body moving piston between any one of the upper body and the lower body An upper body moving cylinder coupled to the upper body moving piston, and an upper body moving motor for rotating the upper body moving cylinder. Whereby the filaments of various thickness types can be wound on one roller.

According to the present invention, the filaments are straightened so as not to bend and wound on the winding machine, and the filaments can be aligned and wound while stacking the filaments by looking at the shape of the filaments that are wound and laminated.

Another effect according to the present invention is that each of the various types of filaments can be accurately wound on one roller.

1 shows a filament winding system according to the invention;
2 is a detailed view of a roller of a winder;
3 is a view showing a process of moving a partition to a roller of a winder to form a winding region;
Fig. 4 illustrates winding a plurality of filaments in a plurality of winding regions; Fig.
5 is a control block diagram of a filament winding system.

Hereinafter, a filament winding system 1 according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a view showing a filament winding system 1 according to the present invention. Fig. 2 is a detailed view of a roller 22 of a winder 20, and Fig. 3 is a view showing a roller 22 of a winder 20, In which the partitioning portion 25 is moved to form a winding region. The filament winding system 1 includes an extruder 10, a winder 20, an encoder 30, a filament guide 40, a notification unit 50, a filament detection unit 60, a user input unit 70, 80).

The extruder 10 heats the pellets of the plastic material, which is the raw material, and produces the filament 2. The extruder 10 has an injection port into which the pellets are injected and an extrusion nozzle, and the screw is rotated to produce a filament by rotating the screw.

The winder 20 has a roller 22 on which the filament 2 extruded from the extruder 10 is wound. The winding unit 20 includes a roller driving unit 23 for driving the roller 22 to rotate so as to prevent the filament 2 wound on both ends in the axial direction of the roller 22 from being separated from the roller 22 At least one partition 25 and at least one compartment 25 for partitioning the filament 2 to form a winding region between the pair of escape prevention plates 24, And a division drive unit 26 for driving the roller 22 to move along the longitudinal direction of the roller 22. [

The roller 22 is rotatable and has a cylindrical shape with a hollow like a pipe. The rollers 22 are formed with a pair of slots 22-1 so as to face each other with respect to an axis along a predetermined axis direction. At both end portions in the axial direction of the roller 22, a stopper constituted by rotating teeth is engaged.

The rotating teeth are connected to a roller driving unit 23 that drives the roller 22 to rotate. The roller driving part 23 includes a rotating motor connected to a rotating shaft having rotating teeth which mesh with the rotating teeth of the roller 22, and rotates the rotating shaft. And the roller 22 is rotated by the operation of the rotation motor.

The pair of release preventing plates 24 are engaged with both ends of the roller 22 in the axial direction so that the filaments 2 wound thereon are not separated from the roller 22. The separation preventing plate 24 is formed in a disc shape larger than the diameter of the roller 22 and blocks the filament 2 so that the filament 2 wound on the roller 22 does not come off the roller 22. The separation preventing plate 24 on one side is formed in a central area where the slot 22 having the predetermined width is engaged with the roller 22 and is engaged with the roller 22. The slot formed in the central region has at least an angle different from that of the pair of slots 22-1.

At least one partition 25 defines a winding area of the filament 2 between the pair of escape prevention plates 24. The partition 25 has a shape to slide on the outside of the roller 22 and is slidably engaged with the roller 2. The partitioning portion 25 has a coupling plate 25-1 having a shape corresponding to the inner shape of the roller 22 while connecting a pair of slots 22-1. Each of the compartments 25 coupled to one roller 22 has a latching plate 25-1 of different cross sectional size with respect to the rolling direction of the roller 2. [ It is preferable that when the plurality of dividing sections 25 are slidingly coupled to the roller 22, the size of the cross section of the engaging plate 25-1 is sequentially increased.

The partition drive unit 26 drives the partition unit 25 so that the at least one partition unit 25 is moved along the longitudinal direction of the roller 22. [ The partition drive unit 26 includes an upper body 26-1, a lower body 26-2 coupled to the upper body 26-1 such that the upper body 26-1 is movable in the vertical direction, A partition moving piston 26-3 which is joined and moved along the axis of the roller 22 and pushes the corresponding clamping plate 25-1 and a partition moving cylinder 26-2 which is engaged with the partition moving piston 26-3 4, a partition moving motor 26-5 for rotating the partition moving cylinder 26-4, an upper body moving part 26-3 coupled to any one of the upper body 26-1 and the lower body 26-2, An upper body moving cylinder 26-7 coupled to the upper body moving piston 26-6, an upper body moving motor 26-8 for rotating the upper body moving cylinder 26-7, .

The encoder 30 measures the length of the filament 2 disposed between the extruder 10 and the winder 20 and wound on the roller 22. The encoder 30 has a pair of pulleys adapted to receive a portion of the filament 2 and rotate in a direction to move while pressing the outer surface. The encoder 30 can accurately measure the length of the filament 2 while rotating a pair of sheaves.

The filament guides 40 move the filaments 2 upward, downward and leftward to wind the rollers 22 of the winder 20. The filament guide 40 includes a tension sensor 43 for measuring the tension at which the filament 2 is wound, a guide body 41 for slidably supporting the guide rack 41-1, and a guide rack 41-1 And a guide drive unit 42 for moving the workpiece 42 in the up, down, left, and right directions.

The tension sensor 43 measures the tension applied to the filament guide 40 by the filament 2 and transmits the measured tension to the control unit 80.

The guide body 41 is preferably provided in a similar length to correspond to the length of the roller 22 in the longitudinal direction. The filament guide 40 has a guide supporting portion 41-2 connected to a lower portion of the guide body 41 to support the guide body 41. [ The guide body 41 may be provided so as to be vertically movable while being accommodated in the guide support portion 41-2. The guide main body 41 is hollowed along the longitudinal direction and the guide supporting portion 41-2 can be inserted into the hollow of the guide main body 41. [

The guide rack 41-1 has a through hole through which the filament passes. The guide rack 41-1 is formed with a sliding extension 41-11 extended from the distal end in the transverse direction with respect to the longitudinal direction of the guide rack 41-1 along the longitudinal direction of the guide rack 41-1 have. A sliding insertion portion 41-3 for receiving the sliding extension portion 41-11 is formed in the guide main body 41 along the longitudinal direction of the guide main body 41. [

The guide drive unit 42 is connected to the guide left and right movement pinions 42-2 and the guide left and right movement pinions 42-2 which are connected to the guide rack 41-1 so as to be engaged with the guide rack 41-1, And a guide left and right movement motor 42-1 for rotating the guide. The guide driving part 42 includes a guide up-and-down moving cylinder 42-3 coupled to and supported by the guide supporting part 41-2, a guide up-and-down moving piston 42-4 connected to the guide up-and-down moving cylinder 42-3, And a guide up-and-down moving motor 42-5 for supplying hydraulic pressure to the up-and-down moving cylinder 42-3.

The notification unit 50 is provided as means for informing the user that the filament 2 has been wound on the roller 22 of the winder 20. The notification unit 50 may be a speaker or a display unit. The notification unit 50 may notify the user that the filament 2 is wound on the roller 22 of the winder 20,

The filament detecting unit 60 senses the position of the filament 2 wound on the roller 22. The filament detecting unit 60 can take an image of the filament 2 that is provided by a camera and is wound on the roller 22 and can transmit an image captured by the control unit 80. [

The user input unit 70 is provided with a tablet or a computer, and the user can input a command according to a menu of a tablet, a computer, or the like.

The control unit 80 stores information on an appropriate length at which the filament 2 is wound on the roller 22 and controls the extruder 1 to extrude the filament 2 so that the extruded filament 2 is wound Controls the winder 20 and receives length information of the filament 2 wound on the roller 22 from the encoder 30 and compares the length information with the information on the proper length so that the length information of the filament 2 And controls the notification unit 50 to inform the user if the information is the same as or at least larger than the information on the proper length.

The control unit 80 calculates the winding position of the filament 2 based on the position of the filament 2 sensed by the filament detecting unit 60 and controls the guide driving unit 42 according to the calculated winding position . The control unit 80 analyzes the image captured from the filament detecting unit 60 and controls the guide left and right moving motor 42-1 so that the filament 2 is wound at a position where the filament 2 is not wound.

The control unit 80 stores data on the appropriate tension to be wound on the roller 22 and compares the tension data received from the tension sensor 43 with data on the appropriate tension and controls the guide driving unit 42 do. For example, when the appropriate tension is 10 and the tensile force measured from the tension sensor 43 is 7, the control unit 80 operates the guide up-and-down moving motor 42-5 to move the guide main body 41 upward, 10 < / RTI >

3 is a view showing a process of forming the winding region by moving the partition 25 to the roller 22 of the winder 20.

(a) Three rollers 22 are slidably inserted into the dividing sections 25-11 to 25-13. The retaining plates 25-1 to 25-3 of the partition portions 25-11 to 25-13 are located inside the roller 22. On the left side of the roller 22, A partition moving piston 26-3 for moving the partition moving cylinder 26-4 to the right and a partition moving cylinder 26-4 for moving the partition moving cylinder 26-4 upward and downward The upper body moving piston 26-6 and the upper body moving cylinder 26-7 are located.

(b) When a command to the winding region of the roller 2 is received from the user, the controller 80 drives the upper body moving motor 26-8 to move the partition moving cylinder 26-4 upward . Thereafter, the control unit 80 drives the partition moving motor 26-5 to push the holding plate 25-1 by the partition moving piston 26-3. Whereby the partition 25-13 is moved to the right.

(c) Thereafter, the controller 80 drives the upper body moving motor 26-8 to move the partition moving cylinder 26-4 downward. Thereafter, the control unit 80 drives the partition moving motor 26-5 to push the partition moving piston 26-3 in the holding plate 25-2. Whereby the partition 25-12 is moved to the right.

(d) Subsequently, the controller 80 drives the upper body moving motor 26-8 to move the partition moving cylinder 26-4 downward. Thereafter, the control unit 80 drives the partition moving motor 26-5 to push the partition moving piston 26-3 against the holding plate 25-3. Whereby the partition 25-11 is moved to the right. When the partition moving piston 26-3 is moved out of the roller 22 as shown in (a), the roller driving unit 23 is driven to wind the filament 2.

4 is a view showing winding of a plurality of filaments in a plurality of winding regions.

3, the division sections 25-11 to 25-13 form a winding region, and the control section 80 controls the extrusion drive section 11, the encoder 30, the filament guides 40, The roller driving unit 23 is driven to start winding.

The filaments 2 of different thickness are wound on one roller 22 at the same time. Since the four extruders 10-1 to 10-4 extrud the filaments 2 having different thicknesses from each other, they are extruded from the four extruders 10-1 to 10-4 so that the filaments 2 are fed to the roller 22, Should have the same winding speed. Therefore, the control unit 80 calculates the extrusion speeds of the four extruders 10-1 to 10-4 to make the speed at which the filaments 2 are wound on the roller 22 the same, controls each of the extrusion drivers So that the filament 2 is extruded.

The filaments 2 of different thickness are wound on one roller 22, and the diameter of winding is changed, so that the control unit 80 can control each of the extrusion driving units considering this. In addition, since the filaments 2 of different thickness are wound at a different speed at one roller 22, the extrusion driving unit of the extruder, which has completed winding first, is stopped. Since the filaments 2 having different weights are wound on one roller 22, the controller 80 controls the guide left and right moving motors 42-1 and 42-1 of the filament guides 40, And controls the moving motor 42-5. In order to fix the ends of the filaments 2 wound on the respective winding regions, cut portions may be provided in the dividing portions.

Fig. 5 is a control block diagram of the filament winding system 1. Fig.

The control unit 80 controls the guide left and right movement motors 42-1 and 42-4 to move the plurality of compartments 25-11 to 25-13 to form a winding region. The control unit 80 controls the extrusion driving unit 11 of the extruder 10 to control the extrusion speed to be changed and controls the roller driving unit 23 to rotate the roller 22. [ The filament detecting section 60 is driven to detect the position of the filament 2 to control the guide left and right moving motor 42-1 to move the guide rack 41-1 to the left and right, And controls the upper main body moving motor 26-8 to move the upper main body 26-1 up and down so that the tension of the filament 2 is adjusted. The control unit 80 drives the encoder 30 to accurately measure the length of the filament 2 passing through the encoder 30. The user drives the user input unit 70 for inputting a command, So that the winding can be informed that the winding of the roller 22 is completed.

A sensor may be provided to sense the shape of the slot formed in the pair of separation preventing plates 24. The controller 80 controls the roller driving unit 23 so that the slots formed in the pair of the separation preventing plates 24 are aligned in the vertical direction. The slots formed in the pair of departure prevention plates 24 are aligned so that the slots formed in the pair of departure prevention plates 24 pass through the partitioning moving pistons 26-3 and the engaging plates 25-1 It can be made to push.

The filament winding system 1 senses the tension of the filament 2 by the tension sensor 43 and moves the filament guide 40 up and down and right and left to straighten the filament 2 so as not to bend, The filaments 2 are wound on the rollers 22 while checking the lamination state of the filaments 2 by winding the filaments 2 on the filaments 2. The compartments 25-11 to 25-13 are moved to wind the filaments 2 having different weights to different rollers on one roller 22 and the respective extruders 10-1 to 10-4 The filament guides 40-1 to 40-4 and the encoders 30-1 to 30-4 are controlled so that the filaments 2 are wound on the rollers 22.

1: filament winding system 2: filament
10: extruder 11: extrusion driving part
20: Winding machine 30: Encoder
40: filament guide 50:
60: filament detecting section 70: user input section
80:

Claims (5)

In a filament winding system,
An extruder for extruding the filament;
A winder having a roller on which the filament extruded from the extruder is wound;
An encoder disposed between the extruder and the winder to measure a length of the filament wound on the roller;
A filament guide for guiding the filaments extruded from the extruder to the rollers;
Notification section;
Wherein the controller controls the extruder to extrude the filament and controls the winder to wind the extruded filament, and the controller controls the winder to wind the extruded filament, And a control unit for controlling the notification unit to inform the user when length information of the filament is equal to or at least larger than the information on the proper length The filament winding system comprising:
The method according to claim 1,
And a filament detecting unit for detecting a position of the filament wound on the roller,
Wherein the filament guide has a guide body having a through hole through which the filament passes, and a guide driving part for moving the guide body,
Wherein the control unit calculates a position at which the filament is to be wound based on the position of the filament detected by the filament detecting unit and controls the guide driving unit according to the calculated position to be wound.
3. The method of claim 2,
Wherein the filament guide includes a tension sensor for measuring a tension at which the filament is wound,
Wherein the control unit stores data on an appropriate tension to be wound on the roller, and compares the tension data received from the tension sensor with data on the appropriate tension, and controls the guide driving unit according to a result of the comparison. system.
3. The method of claim 2,
Wherein the extruder is provided with a plurality of extruders, and the extruder includes an extrusion driver for extruding the filaments having different inner diameters, the encoder and the filament guide are attached to the extruder,
The winding unit includes a roller driving unit for driving the rollers to rotate, a pair of separation preventing plates for preventing the filaments wound on the ends of the rollers in the axial direction from winding off from the rollers, At least one partition part which slides along the longitudinal direction of the roller to form a winding area of the filament, and a division driving part which drives the at least one division part to move along the longitudinal direction of the roller ,
And a user input unit for inputting a command of the user,
Wherein the control unit stores information on an appropriate length of the filaments of the different inner diameters wound on the corresponding winding region of the winder, and inputs to the user input unit a plurality of filaments of different diameters, Wherein the control unit controls the division driving unit to form a plurality of the winding areas on the basis of the command of the user and controls the extrusion driving unit and the roller driving unit to wind the plurality of filaments to the plurality of winding areas formed by the division driving unit Wherein the filament winding system comprises a filament winding system.
5. The method of claim 4,
Wherein the at least one partition has an engagement plate having a size mutually mutually centered on the rotation axis of each partition,
The partition drive unit includes an upper body, a lower body coupled to the upper body such that the upper body is movable in the up and down direction, a partition moving piston slidably coupled to the upper body and moved along the axis of the roller, A partition moving cylinder coupled to the partition moving piston, a partition moving motor for rotating the partition moving cylinder, an upper body moving piston coupled to any one of the upper body and the lower body, An upper body moving cylinder coupled to the upper body moving cylinder, and an upper body moving motor for rotating the upper body moving cylinder.

Images