KR102272249B1 - Tube expanding device for capillary tube - Google Patents

Abstract

The present invention relates to a capillary tube expansion device, and more particularly, to a capillary tube expansion device with improved productivity that can continuously and automatically expand a plurality of capillaries and can be loaded separately by judging whether the processed capillary is defective. .

Description

Capillary tube expanding device {Tube expanding device for capillary tube}

The present invention relates to a capillary tube expansion device, and more particularly, to a capillary tube expansion device with improved productivity that can continuously and automatically expand a plurality of capillaries and can be loaded separately by judging whether the processed capillary is defective. .

The refrigerant pipe assembly for the system air conditioner requires a process of expanding or axial pipe of a capillary tube with a fine diameter during the production process of the pipe assembly for the flow or branching of the refrigerant, which is a medium of heat transfer in the heat exchange cycle of the system air conditioner.

Conventionally, when connecting the capillaries to each other, they are joined by welding using a bushing. However, in this method, both ends of the capillary must be fixed so that they are positioned on the same line, and welding must be performed with the bushings accurately positioned at the joint. It took a lot of time, and there was a problem that defects occurred in the welded part if the joint between the welds was not fixed correctly.

In order to shorten the working time required to connect the capillary, and to ensure that the connecting part can be firmly joined while maintaining airtightness, an expanded tube part with an expanded inner diameter is formed on one side of the capillary tube, and the other capillary tube is formed in this expanded tube part. A method of welding in the state of being inserted is also used.

However, since the inner diameter of the capillary is very small, less than 1 mm, in order to artificially enlarge the inner diameter of the capillary, the operation must be done very precisely and carefully. Due to this, the expansion of the capillary tube takes a lot of time, and there is a problem in that the efficiency and productivity of the operation are reduced.

Accordingly, as shown in Korean Patent Application Laid-Open No. 10-2009-0012574, a fixing part capable of fixing a pipe (capillary tube) is installed on one side of the base, and the fixed expansion rod can be rotated to expand the inner diameter of the pipe on the other side. A copper pipe expansion device that has a tool rest and a conveying part that can move the tool rest forward and backward toward the end of the pipe fixed to the fixed part, inserting the expanding rod in a rotating state into the end of the pipe, and expanding the inner diameter has been proposed

By the way, in general, for precise capillary expansion operation, a plurality of expansion devices are arranged in a straight line, and the first to fourth expansion operations are performed on one capillary tube. Therefore, the operator must fix the capillary tube to be expanded in front of the expansion rod for each expansion device, and after moving to the next step expansion device, the operator must operate the expansion device one by one so that the expansion operation is performed. I need this.

For this reason, the overall process time is unnecessary, and there is a problem in that the production line is lowered as the fatigue of the operator is accumulated due to repetitive manual work.

In addition, as for the capillary tube that has been expanded, the operator manually reads the defects with the naked eye and experience. If the capillary tube determined to be normal has a dimensional error, the total error of the pipe assembly is accumulated in the entire pipe assembly through brazing, resulting in additional deformation and concentration. Stress may be generated and damage may occur, and as a result, there is a problem that a system malfunction may occur due to refrigerant leakage.

Republic of Korea Patent Publication No. 10-2009-0012574 : Copper pipe expansion device Republic of Korea Patent Publication No. 10-1963418 : Capillary tube expansion device

The present invention is to solve the above problems, a plurality of expanded tube parts for expanding the capillary tube are arranged in the circumferential direction, and a capillary fixing part capable of holding the capillary on a rotating plate rotated in the circumferential direction of the plurality of expanding tube parts An object of the present invention is to provide a capillary tube expansion device that can continuously perform a stepwise expansion process in a narrow place by applying a rotary structure with a

In addition, an object of the present invention is to provide a capillary tube expansion device capable of automatically reading the expanded diameter and dimensions of the capillary tube and loading the normally read capillary from the badly read capillary tube.

The capillary tube expansion device of the present invention for achieving the above object comprises: a capillary supply unit for supplying a capillary to be expanded; A plurality of capillary fixing parts for holding the capillary supplied from the capillary supply unit are installed along the circumferential direction, and a plurality of capillary transfer units including a rotatable rotating plate so that the capillary fixed to each of the capillary fixing parts is moved in the circumferential direction; ; The inner diameter of the capillary is expanded to a predetermined diameter and length, respectively, by linear motion in the direction parallel to the capillary toward the tip of the capillary held by the capillary fixing part so as to extend in parallel to the rotational axis of the rotating plate, and the rotation of the rotating plate A plurality of capillary fixing parts are spaced apart from each other in the circumferential direction to correspond to the distance spaced in the circumferential direction so that the expansion pin inserted for expansion can be respectively inserted into one of the capillaries positioned in front of the same line. a capillary tube expansion unit including a tube expansion unit; It characterized in that it comprises a; capillary loading unit for holding the capillary expanded in the capillary tube expansion unit to transfer to the loading unit.

A vision sensor for checking the expanded diameter and length of the capillary tube, and if the information transmitted from the vision sensor matches the preset processing shape, it is read as normal, and if it is different from the preset processing shape, it is read as defective Further comprising a control unit for controlling the driving of the capillary loading unit so that the capillary and the determined normal capillary can be separately loaded into the loading section, the loading section is the capillary in which the internal space opened upward is normally read It is preferable to include a partition wall extending vertically to be partitioned into a first loading space to be loaded and a second loading space in which the badly read capillary is loaded.

The capillary loading unit includes a vertical rotation cylinder that can be rotated up and down in a direction corresponding to the direction in which the rotation plate is rotated from the lower side of the rotation plate and can be stretched in length, and the vertical rotation cylinder is connected to the vertical rotation cylinder and the vertical rotation cylinder according to the length extension. is mounted on the end side of the vertical rotation cylinder, and the vertical rotation cylinder is extended in length so as to be able to grip the capillary fixed to the capillary fixing part when rotated upward, and the vertical rotation cylinder is positioned above the first loading space when length is extended in a downwardly rotated state, and is positioned above the second loading space when length is extended, so that the capillary is loaded into the first or second loading space. It is preferable to have a capillary tongs arm to release the grip.

The capillary tube expansion unit further includes an expanding pipe support frame supporting a plurality of expanded pipe parts spaced apart from each other in a circumferential direction, and the rotation axis is a diameter center side on a circumferential line formed by a plurality of the expanded pipe parts spaced apart from each other in the circumferential direction. is coupled to the rotating plate through the expanding pipe support frame to be positioned in the base, the capillary transfer unit is spaced apart from each other with the base frame on which the expanded pipe support frame is mounted on the upper surface, and the expanded pipe support frame therebetween It is preferable to include first and second rotation shaft support frames mounted on the upper surface of the frame to support the rotation shaft, and a rotation shaft driving unit mounted on the base frame and rotating the rotation shaft.

The capillary tube expansion device of the present invention may further include a rotation plate rotation limiting means for limiting the rotation of the rotation plate so that the capillary fixing part is positioned toward the front side of the expansion part.

The rotating plate rotation limiting means is installed so as to face the rotating plate on the first rotating shaft support frame facing the rotating plate, and is movably installed in contact with the rotating plate when the capillary fixing part is positioned on the front side of the expansion tube part to rotate the rotating plate A rotation limiting rod limiting the rotation limiting rod, a rotation limiting rod driving part for advancing and retreating the rotation limiting rod, and a plurality of the capillary fixing parts on one surface of the rotation plate facing the first rotation shaft support frame are mutually in the circumferential direction by a distance spaced apart from each other Spaced apart and located on the same horizontal line on the rotation limiting rod according to the rotated position of the rotation plate, rod receiving grooves in which the rotation limiting rod can be accommodated are respectively formed to fix the position of the rotation plate together with the rotation limiting rod which is accommodated It is preferable to have a plurality of rotation limiting frames.

The capillary supply unit is arranged to be spaced apart in the lateral direction with respect to the rotation axis of the rotation plate from the front side of the capillary tube expansion unit, and extends in the longitudinal direction of the rotation shaft so that the capillary tube is loaded in parallel in the rotation axis direction of the rotation plate, and the rotation plate A supply hopper formed to be inclined downward to the side, a capillary rising unit extending upward through the lower end of the supply hopper, and transferring upwardly one of the plurality of capillaries in the supply hopper, the one closest to the rotating plate; And, the capillary tube A capillary seating frame on which the capillary tube, which is raised by the lifting unit and discharged from the supply hopper in the direction of the rotation axis, is seated, and a capillary supply arm that grips the capillary seated on the capillary seating frame and moves it toward the adjacent capillary fixing part. It is preferable to have

The capillary rising unit passes through the supply hopper up and down to be spaced apart from the rotating plate with respect to the inner circumferential surface of one side of the supply hopper on which the capillary mounting frame is mounted, and at least one of the capillary in the supply hopper first A first rod that raises, and the first rod spaced apart from the first rod in the longitudinal direction of the supply hopper at a position between the inner peripheral surface of one side of the supply hopper and the first rod passing through the supply hopper to the first rod A second rod for secondly raising the firstly raised capillary, and protruding from the inner circumferential surface of one side of the supply hopper at a position between the first rod and the second rod, only one of the capillaries in the second rod It may include a seating limiting bar for limiting the number of seating of the capillary tube on the second rod so as to be raised, a first rod lifting cylinder for raising and lowering the first rod, and a second rod lifting cylinder for raising and lowering the second rod. .

In the capillary tube expansion device of the present invention, a plurality of expanding parts for expanding the capillary are arranged in the circumferential direction, and a plurality of capillary fixing parts capable of holding the capillary in the circumferential direction of the plurality of expanding parts according to the rotated angle of the rotating plate Since it is installed on the rotary plate to be positioned in front of the pipe expansion part, the multi-stage expansion process can be performed continuously, so that the working efficiency is improved and the productivity can be improved as the working time is shortened.

In addition, the capillary tube expansion device of the present invention automatically reads the presence or absence of defects through a vision sensor, so that the normally read capillary and the defectively read capillary can be loaded separately, so that the working efficiency can be further improved.

1 is a side view of the capillary tube expansion device of the present invention,
Figure 2 is a front view of the capillary tube expansion device of Figure 1,
3 is a plan view of the capillary expansion device in which the capillary loading unit of FIG. 1 is omitted;
Figure 4 is a partial perspective view of the capillary tube expansion device of Figure 1,
5 is a side view of the capillary tube expansion device excluding the capillary supply unit and the capillary loading unit of FIG. 1;
Figure 6 is a partial rear view of the capillary tube expansion device in Figure 5,
Figure 7 is a plan view of the capillary supply unit of the capillary tube expansion device of Figure 1,
Figure 8 is a front view of the capillary supply unit of Figure 1,
9 is a partial cross-sectional view of the capillary supply unit of FIG. 8;
Figure 10 is an enlarged view of the capillary loading unit side of the capillary tube expansion device of Figure 1,
11 is a front view of the capillary fixing part of the capillary tube expansion device of FIG. 1,
12 is a perspective view of the capillary auxiliary holding part of the capillary tube expansion device of FIG. 1 .

Hereinafter, a capillary tube expansion device according to a preferred embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

1 to 12 show a capillary tube expansion device 1 according to an embodiment of the present invention.

A capillary tube expansion device (1) according to an embodiment of the present invention includes a capillary supply unit (10) for supplying a capillary tube (P) to be expanded; a capillary transfer unit 60 capable of gripping a plurality of capillaries at regular intervals in the circumferential direction and moving them in the circumferential direction; a capillary tube expansion unit 150 capable of expanding the capillary tube P held by the capillary transfer unit 60 in multiple stages; a defect reading unit 100 for inspecting the expanded state of the expanded capillary tube (P) and reading the defect; a capillary loading unit 200 for gripping the expanded capillary tube (P) and transferring it to the loading unit 230; A control unit (not shown) is provided.

The capillary supply unit 10 includes a supply hopper 11, a hopper support frame 16, a capillary rising unit 20, a capillary mounting frame 30, a capillary supply arm 40, and a supply arm support part ( 50) is provided.

The supply hopper 11 is disposed to be spaced apart in the lateral direction with respect to the rotation shaft 71 for rotating the rotation plate 61 of the capillary transfer unit 60 on the front side of the capillary tube expansion unit 150, and the capillary tube P is the rotation plate (61) extends in the longitudinal direction of the rotating shaft (71) to be stacked in parallel in the direction of the rotating shaft (71). Referring to FIGS. 8 and 9, the supply hopper 11 has one side facing the rotation axis formed to be inclined downward toward the rotation plate 61 so that one side is longer up and down than the other side, and the capillary receiving space 12 opened upwards is formed with reference to FIGS. 8 and 9. is formed

The capillary tube (P) is loaded in the supply hopper (11) so that both sides in the longitudinal direction face the front-rear direction.

The hopper support frame 16 has an upper portion coupled with a lower portion of one side of the supply hopper 11 to support the supply hopper 11, and the first and second rod lifting cylinders 25 of the capillary lifting unit 20 to be described below. , 28) are combined.

The capillary rising unit 20 penetrates the lower end of the supply hopper 11 and extends upward to move one capillary (P) closest to the rotating plate 61 among a plurality of capillaries (P) in the supply hopper 11 upward. transport

The capillary lifting unit 20 includes a plurality of first rods 22 , a first support bar 24 , a first rod lifting cylinder 25 , a plurality of second rods 26 , and a second support bar. (27), and a second rod elevating cylinder (28), and a plurality of seating limiting bars (29).

The plurality of first rods 22 are spaced apart from each other by a predetermined distance in a direction away from the rotary plate 61 with respect to the inner circumferential surface of one side of the supply hopper 11, and are spaced apart from each other by a predetermined interval in the longitudinal direction of the supply hopper 11, the supply hopper At least one capillary tube (P) in the supply hopper 11 is firstly raised to the upper side of the supply hopper 11 by penetrating (11) up and down.

The first rod 22 has a first downwardly inclined surface 22a downwardly inclined in a direction adjacent to the rotational shaft 71 at its upper end, and a downwardly inclined direction away from the rotational shaft 71 from the upper end of the first downwardly inclined surface 22a. It has a second downwardly inclined surface 22b.

The first support bar 24 extends in the longitudinal direction of the supply hopper 11 so as to connect the lower ends of the plurality of first rods 22 at a position below the supply hopper 11 .

The first rod elevating cylinder 25 has a first elevating cylinder body 25a fixedly coupled to the hopper support frame 16 under the first support bar 24, and a lower portion of the first elevating cylinder main body 25a. A first elevating rod 25b, which is constrained to be elevating with respect to the first elevating cylinder body 25a, and whose upper end is connected to the first support bar 24, raises or lowers the plurality of first rods 22 at the same time. do.

A plurality of second rods 26 are spaced apart from the first rod 22 in the longitudinal direction of the supply hopper 11 and adjacent to the inner circumferential surface of one side of the supply hopper 11 rather than the first rod 22. 11) passes through the supply hopper 11 at a position between the inner peripheral surface of one side of the first rod 22 and the first rod 22, and the capillary 2 that is first raised to the first rod 22 is raised secondarily.

The plurality of second rods 26 extend up and down to have the same length as the plurality of first rods 22 , and their upper portions are disposed above the upper ends of the plurality of first rods 22 .

The second rod 26 has a third downwardly inclined surface 26a inclined downward in a direction adjacent to the rotation shaft 71 at an upper end thereof. The third downwardly inclined surface 26a has the same inclination as the first downwardly inclined surface of the first rod 22 .

When the second rod 26 is lowered and the first rod 22 is raised, the capillary P raised by the first rod 22 is seated on the third downwardly inclined surface 26b of the second rod 26 . Thus, the first downwardly inclined surface 22a and the third downwardly inclined surface 26a may be positioned on the same line.

The second support bar 27 extends in the longitudinal direction of the supply hopper 11 so as to connect the lower ends of the plurality of second rods 26 at a position below the supply hopper 11, and the plurality of second rods ( 26) is located above the first support bar 24 so that the upper portion of the plurality of first rods 22 is located above the upper end.

The second rod elevating cylinder 28 has a second elevating cylinder body 28a fixedly coupled to the hopper support frame 16 under the second support bar 27, and a lower portion of the second elevating cylinder main body 28a. A second elevating rod 28b which is constrained to be elevating with respect to the second elevating cylinder body 28a and has an upper end connected to the second support bar 27 to simultaneously elevate or lower the plurality of second rods 26 do. The second elevating cylinder body 28a is fixedly coupled to the hopper support frame 16 to be positioned above the first elevating cylinder body 25a.

A plurality of seating limiting bars 29 are mounted to protrude from the inner peripheral surface of one side of the supply hopper 11 at a position between the first rod 22 and the second rod 26, respectively, and one on the second rod 26. The number of seating of the capillary (P) seated on the second rod (26) is limited so that the capillary (P) of the tube rises.

The seating limit bar 29 has a rectangular bar shape with a constant width so as to protrude a predetermined length from the inner peripheral surface of one side of the supply hopper 11 .

The seating limiting bar 29 is a supply hopper such that the length of the second rod 26 protruding from the seating limiting bar 29 is larger than the diameter of one capillary (P) and smaller than the diameter of the two capillaries (P) connected. The number of capillaries (P) protruding a certain length from the inner circumferential surface of one side of (11) and seated on the second rod (26) is limited to one.

The capillary mounting frame 30 is mounted on the outer peripheral surface of one side of the supply hopper 11, is raised by the capillary rising unit 20, and the capillary tube P discharged from the supply hopper 11 in the direction of the rotation shaft 71 is seated. part to be

The capillary mounting frame 30 is formed with a 'V'-shaped seating groove 31, and is coupled to and supported by a frame support bracket 33 mounted on the outer peripheral surface of one side of the supply hopper 11 .

On the other hand, referring to FIG. 9 , the supply hopper 11 has an upper end of one side of the capillary mounting frame 30 in the seating groove 31 of the capillary mounting frame 30 so that the discharged capillary P is easily seated in the capillary mounting frame 30 . It is inclined to have an inclination corresponding to the inclined surface and is formed to be positioned on an extended line on the inclined surface of the seating groove 31 .

A plurality of capillary seating frames 30 are respectively mounted on one side and the other side of the supply hopper 11 in the longitudinal direction to support both sides of the capillary tube (P).

On the other hand, the capillary supply unit 10 is a first support piece protruding in the direction of the rotation shaft 71 from one end in the longitudinal direction of the supply hopper 11 to support one end of the capillary tube P seated on the capillary mounting frame 30 ( 36), a second support piece 37 protruding parallel to the first support piece in the direction of the rotation shaft 71 from the other longitudinal end of the supply hopper 11, and a capillary tube seated through the second support piece so as to move forward and backward. The capillary elastic support bar 35 in contact with the other end of the capillary P supported on the frame 30 and the capillary elastic support bar 35 is mounted between the extended end and the second support piece 37 . A spring (not shown) for elastically pressing the elastic support bar 35 in the capillary (P) direction is provided.

The capillary elastic support bar 35 is elastically pressed by a spring to elastically support the other end of the capillary P seated on the capillary mounting frame 30 .

On the other hand, the capillary tube expansion device 1 according to an embodiment of the present invention is mounted on the upper surface of the rectangular base frame body 57 and the base frame body 57, the capillary transfer unit 60 and the capillary tube expansion unit 150 ) It further includes a base frame 56 including a plate-shaped base plate 58 for supporting.

Before describing the capillary feed arm 40 , the feed arm support 50 will be described first.

The supply arm support part 50 has a lower portion coupled to the front edge of the base plate and a support frame 51 extending in the vertical direction, and in a direction orthogonal to the longitudinal direction of the rotation shaft 71 at the upper end of the support frame 51 . The extended supply arm support rail 53, the first slider 54 movable along the supply arm support rail 53 and coupled to the upper part of the capillary supply arm 40, and the first slider 54 are moved. and a slider moving means.

The support frame 51 has a lower portion coupled to the front edge side of the base plate 58 and a first vertical support bar 51a extending in the vertical direction, and a front side from the upper portion of the first vertical support bar 51a. , a first horizontal support bar (51b) protruding in a direction in which the rotational shaft is positioned with respect to the rotational shaft, and a predetermined length extending downward from the end of the first horizontal support bar (51b) in parallel to the first vertical support bar (51a) A second vertical support bar (51c) is provided.

The supply arm support rail 53 is extended in length so that one side is positioned in front of the rotating plate 61 , and is fixedly mounted to the second vertical support bar 51c.

Although not shown, the slider moving means is mounted in the supply arm support rail 53 and rotates the supply arm movement ball screw (not shown) extending in parallel to the supply arm support rail 53 and the supply arm movement ball screw. The supply arm movement ball screw is screwed through to move in the extending direction of the support rail 53 to the rotation of the supply arm movement motor (not shown) and the supply arm movement ball screw, and is coupled to the first slider 54 . A movable member (not shown) may be provided. The supply arm movement motor is connected to the control unit and rotates the supply arm movement ball screw to move the capillary supply arm 40 to one side or the other side of the supply arm support rail 53 while the first movement member is moved together with the first slider. can do it

The structure of the supply arm support rail 53 , the first slider 54 , and the supply arm moving means may be a general linear motion guide structure other than the suggested structure.

And, the supply arm support part 50 is an auxiliary arm support rail 55 fixedly mounted to the second vertical support bar 51c to extend in parallel to the supply arm support rail 53 below the supply arm support rail 53 . And, the second arm is movably mounted on the auxiliary arm support rail 55 and coupled with the capillary supply arm 40 so as to assist the movement of the capillary supply arm 40 that is moved by the movement of the first slider 54 . 2 sliders 52 are further provided.

The capillary supply arm 40 grips the capillary P seated on the capillary mounting frame 30 and moves it toward the adjacent capillary fixing part 81 .

The capillary supply arm 40 extends in the vertical direction and moves along the first slider 54 in the longitudinal direction of the support rail 53 so that the upper part is coupled to the first slider 54, the arm body 41; A gripping member 43 capable of gripping the capillary tube 40 seated on the capillary mounting frame 30 is provided at the lower portion of the body 41 .

The arm body 41 includes a plate-shaped rail coupling part 41a extending vertically so that the first and second sliders 54 and 52 are vertically coupled, and a body cylinder 41b coupled to the rail coupling part 41a. And, a body rod 41c that is vertically mounted on the body cylinder 41b, and a first hydraulic supply unit (not shown) for supplying a fluid to the body cylinder 41b to induce the body rod 41c to ascend and descend. to provide

The gripping member 43 is accommodated in the hook support housing 44 mounted on the lower end of the body rod 41c, and each side is accommodated in the hook support housing 44 and moved adjacent to each other so as to grip the capillary tube P or , First and second hooks 45 and 47 that are moved to be spaced apart from each other so that the capillary tube (P) is released from the grip; It is mounted in the hook support housing 44 and includes a coupling driving means for coupling the first and second hooks 45 and 47 to each other or for spaced apart the first and second hooks 45 and 47 from each other.

The coupling driving means is not limited as long as it has a structure in which the first hook 45 and the second hook 47 can move adjacent to or apart from each other. The first hook 45 and the second hook 47 are slidably mounted on the hook support housing 44 and can partition the inside of the hook support housing 44, respectively, and the coupling driving means is the partitioned hook support. A hydraulic pressure supply structure in which the first hook 45 and the second hook 47 are spaced apart or adjacent to each other by supplying a fluid supplied to the inner space of the housing 44 may be applied. Alternatively, the second hook 47 is fixedly mounted to the hook support housing 44, and the coupling driving means penetrates the first hook 45 and is screwed to the first hook 45 according to the rotational direction to the second hook. It may include a hook moving screw (not shown) for moving adjacent to or away from 47, and a hook moving motor (not shown) for rotating the hook moving screw. Alternatively, the coupling driving means is installed to face each other in the hook support housing 44, and a first hook 45 or a second hook 47 is installed at the end of each rod (not shown) facing each other, A plurality of hydraulic cylinders (not shown) may be provided to mutually couple or separate the first hook and the second hook.

On the other hand, the capillary tube expansion device 1 according to an embodiment of the present invention is not shown, but the first and second rod lifting cylinders 25 and 27 described above, the first hydraulic supply unit, the hydraulic supply structure, or a plurality of It may include a fluid supplied to the hydraulic cylinder, a fluid storage tank in which the fluid is stored, a pump for pumping the fluid, and a fluid supply unit including a control valve connected to a control unit to control the movement direction of the fluid.

Referring to FIG. 1 , the capillary supply arm 40 configured as described above can hold the capillary tube P moved from the capillary supply hopper 11 to the capillary seat frame 30, first the body rod 41c. is lowered and the first and second hooks 45 and 47 of the holding member 43 are moved to be coupled to each other.

The capillary supply arm 40 holding the capillary tube (P) extending in the front-rear direction is moved to the front side of the rotating plate (61), and the body rod (41c) is provided so that the capillary tube (P) can be gripped by the capillary fixing part (81). rises

The capillary transfer unit 60 is mounted to be spaced apart from each other by a predetermined distance in the circumferential direction on the edge side of the rotating plate 61 and the rotating plate 61 to hold the capillary (P) supplied from the capillary supply unit 10 to hold the rotating plate 61 ) is mounted on the upper surface of the base frame 56 to be spaced apart from a plurality of capillary fixing parts 81 for fixing the capillary P, which is rotated according to the movement, and the rotating shaft 71 for rotating the rotating plate 61, The first and second rotation shaft support frames 73 and 75 for supporting the rotation shaft 71, the rotation axis driving part 76 mounted on the base frame 56 and rotating the rotation shaft 71, and the rotation plate rotation limiting means 110 ) is provided.

The rotating shaft 71 is positioned at the center of the diameter on a circumferential line formed by a plurality of expansion pipe parts 151 spaced apart from each other in the circumferential direction of the capillary expansion unit 150 to be described later. It passes through 180 and is coupled to the rotating plate 61 .

The first and second rotation shaft support frames 73 and 75 are mounted on the upper surface of the base frame 56 to be spaced apart from each other with the expansion tube support frame 180 interposed therebetween to support the rotation shaft 71 .

The rotary shaft drive motor 77 is mounted on the upper surface of the base plate 58 and is connected to a control unit (not shown), and the rotary shaft drive belt 79 connects the drive shaft and the rotary shaft of the rotary shaft drive motor 77 . ) is provided.

The rotating plate 61 is formed in the shape of a disk, and is drawn in so that the capillary fixing part 81 is mounted on the edge side, and a plurality of fixing part mounting grooves 63 spaced apart from each other at a predetermined interval, and a through hole formed through the center side ( 62) is formed.

The through hole 62 extends through a hydraulic line (not shown) for connection with a plurality of capillary fixing parts 81 and a fluid supply part, which will be described later.

The fixing part mounting groove 63 is a portion introduced in the direction of the through hole 62 from the edge side of the rotating plate 61 , and a first surface 65 parallel to an imaginary line extending from the through hole 62 , and the first It has a second surface 64 orthogonal to the surface 65 .

In addition, the rotating plate 61 is introduced in the extending direction of the second surface 64 from the first surface 65 side of the fixing part mounting groove 53, a plurality of coupling grooves 66 introduced in a semicircular shape are formed.

Each coupling groove 66 is in contact with a capillary fixing part 81 to be described later, holding the capillary P together with the capillary fixing part 81 and fixing the capillary fixing support frame 68 to the rotating plate 61 is accommodated. .

The capillary fixing support frame 68 is formed in a semicircular shape and is bolted to the coupling groove 66 so that the diameter side is positioned on the same line as the first surface 65 . The capillary fixing support frame 68 is inserted into a semicircular shape corresponding to the diameter of the capillary on the diameter center side and is opened in the front and rear directions to form a first capillary support groove 69 in which one side of the capillary P is accommodated.

The capillary fixing part 81 is in contact with the capillary fixing supporting frame 68 to grip the capillary P together with the capillary fixing supporting frame 68, or while moving in the extending direction of the second surface 64, the capillary supporting frame 68. And the capillary moving support frame 88 spaced apart from the; A support frame coupling rod 87 to which the capillary moving support frame 88 is coupled to one end, a support frame moving cylinder 85 in which the other side of the support frame coupling rod 87 is accommodated forward and backward, and a rotating plate 61 . A pair of fixing base brackets 82 coupled to the rotating plate 61 symmetrically with the first surface 64 interposed therebetween and extending along the extending direction of the first surface 64, and a pair of fixing parts A pair of cylinder restraint brackets 83 that are mounted to be spaced apart in the extending direction of the first surface 64 on the other side of the upper surface of the base bracket 82 to restrain the support frame moving cylinder 85, and a pair of fixed bases A support frame support rail 90 extending in the extension direction of the first surface 64 from one side of the upper surface of the bracket 82, and movably supported by the support frame support rail 90 in the extension direction of the first surface 64 It is mounted on the frame support rail 90 and includes a support frame coupling slider 92 coupled to the capillary fixed support frame 68 .

The support frame moving cylinder 85 may be connected to the aforementioned fluid supply unit in order to advance and retreat the support frame coupling rod 87 .

The capillary moving support frame 88 is drawn in in a direction away from the first capillary support groove 69 of the capillary fixing support frame 68 and is opened in the front-rear direction to support the other side of the capillary tube P. The second capillary tube A support groove 89 is formed.

The rotating plate rotation limiting means 110 limits the rotation of the rotating plate 61 so that the capillary fixing part 81 is fixed to the front side of the expansion tube 151, and the rotation limiting rod 111 and the rotation limiting rod driving part and , and a rotation limiting frame 119 .

The rotation limiting rod 111 is installed to face the rotation plate on the first rotation shaft support frame 73 facing the rotation plate 61, and a capillary fixing part ( 81) is installed to be movable in all directions so as to be in contact with the rotating plate at the time of position to limit the rotation of the rotating plate (61).

The rotation limiting rod driving part advances and retreats the rotation limiting rod 111 in the forward and backward direction, that is, in the extension direction of the rotation shaft 71, and the rear end of the rotation limiting rod 111 is accommodated in a forward and backward direction so as to be moved forward and backward. 115) is provided. The limiting rod driving cylinder 115 is connected to the fluid supply unit and advances and retreats the rotation limiting rod 111 by the fluid supplied therein.

The rotation limiting frame 119 is mounted on one surface of the rotation plate 61 facing the first rotation shaft support frame 73 to correspond to the number of capillary fixing parts 81 mounted on the rotation plate 61, and a plurality of rotation limiters In the frame 119, a plurality of capillary fixing parts 81 are spaced apart from each other by an angle spaced apart from each other in the circumferential direction.

The rotation limiting frame 119 faces on the same horizontal line as the rotation limiting rod 111 according to the angle at which the rotation shaft 71 is rotated.

The rotation limiting rod 111 is formed to have a narrower diameter as it is adjacent to the rotation plate 61 on the end side to facilitate entry into the rotation limiting frame 119 . In addition, the rotation limiting frame 119 is formed with a rod accommodating groove 120 that is drawn in to correspond to the shape of the end side of the rotation limiting rod 111 on the side facing the rotation limiting rod 111, the rotation limiting rod being accommodated. The position of the rotating plate 61 is fixed together with (111).

On the other hand, the capillary tube expansion unit 150 is provided with a plurality of tube expansion parts 151, and an expansion part support frame 180 for supporting a plurality of pipe expansion parts 151 spaced apart from each other in the circumferential direction.

The expanded pipe support frame 180 is a rectangular upper frame supporting two expanded pipe parts 151 that are spaced apart from each other at the same distance in the width direction of the rotary shaft 71 about the rotary shaft 71 above the rotary shaft 71 . 184, and a plurality of vertical extension bars 181 each extending downward from the lower surface of each corner of the upper frame 184 and having the lower end coupled to the base plate 58, the upper frame 184 and the base plate ( 58) is connected to a plurality of vertical extension bars 181 so as to be located on the center side at a spaced distance, and an intermediate frame 187 for supporting one expansion tube 151 is provided.

Referring to FIGS. 4 and 6 , a plurality of tube expansion parts 151 are provided so that the process of expanding one capillary tube P can be performed in multiple stages. Referring to FIG. 7 , it is mounted on the upper frame 184 . divided into first and second pipe expansion parts 151a and 151b, a third pipe expansion part 151c mounted on the intermediate frame 187, and a fourth pipe expansion part 151d mounted on the base plate 58 can be

The second expansion part 151b and the fourth expansion pipe part 151d are positioned on the same line in the vertical vertical direction, and the third pipe expansion part 151c is the second expansion part 151b and the fourth pipe expansion part ( 151d) are spaced apart in a direction away from the axis of rotation 71 with respect to an imaginary line (not shown).

Referring to FIG. 6 , the plurality of expansion tube parts 151 are positioned at the same distance apart from the rotation shaft 71 , and the plurality of capillary fixing parts 81 are spaced apart from each other by a distance spaced apart from each other in the circumferential direction. This is a linear motion in the direction parallel to the capillary tube (P) toward the front end of the capillary tube (P) held by the capillary fixing portion 81 so that the expanding tube portion 151 extends in parallel to the rotation shaft 71 of the rotating plate 61, The expansion pin 165 is moved by the rotation of the rotation plate 61 so that the inner diameter of the capillary tube can be expanded to a predetermined diameter and length, respectively, and inserted into one capillary tube P located in the front on the same line for expansion. This is so that each of these can be inserted.

The expansion tube 151 includes a rail support plate 159 mounted on the upper plate frame 184, the intermediate frame 187, or the base plate 58, and a pair of rotations extending lengthwise in the extending direction of the rotating shaft 71 and spaced apart from each other. A motor support rail 157, a ball screw driving motor 161 mounted on the rear end of the rail support plate 159, a ball screw 152 extending in parallel between a pair of rotary motor support rails 157, and a ball A third moving member (not shown) through which the screw 152 is screwed through to move in rotation of the ball screw 152, and a saddle 155 coupled to the third moving member and both sides supported by the rotary motor support rail And, it is seated on the upper surface of the saddle and provided with a pin rotation driving motor 163 to which the expansion pin 165 extending in the forward direction is rotatably mounted.

The expansion pin 165 is inserted into the distal end of the capillary tube P while rotating by the driving of the pin rotation driving motor 163 so that the capillary tube P is expanded. Although not specifically shown, the expansion pin 165 is preferably formed to have a constant diameter so that the end facing the capillary tube (P) is reduced in diameter to facilitate insertion into the front end of the capillary tube (P).

The control unit is connected to the pin rotation driving motor 163 and the ball screw driving motor 161 so that the expansion pin is inserted and rotated into the capillary tube P at a predetermined distance.

In addition, the control unit controls the rotational axis driving motor 77 so that the rotating plate 61 is rotated by an angle spaced from each other in the counterclockwise circumferential direction when the capillary fixing units 81 are viewed from the front, and then temporarily stopped, The rotation limiting rod driving part is driven so that the rotation limiting rod 111 is accommodated in the rotation limiting frame 119 so that the rotation of the rotation plate 61 is restricted.

When any one of the capillaries (P) held on the rotating plate completes the first expansion process while the first expansion part (151a) advances and retreats, any one capillary pipe (P) moves in front of the second expansion part (151b). Rotate the rotating shaft to position. Any one of the capillaries (P) is sequentially passed through the first to fourth tube expansion parts (151a, 151b, 151c, 151d), the expansion process is completed.

The defect reading unit 100 inspects the capillary tube P that has been expanded through the first to fourth expansion parts, and determines whether there is a defect by examining the expanded length and diameter.

The defect reading unit 100 includes a vision sensor 101 for checking the expanded diameter and length of the capillary tube P; The sensor moving cylinder body 106 mounted on the side adjacent to the capillary supply unit 10 among the upper surface of the front side of the base plate 58 and extending in the front-rear direction, and the sensor moving cylinder body 106 can be moved forward and backward in the front-rear direction. a sensor moving cylinder 104 including a sensor moving rod 105 to be mounted; a plurality of sensor moving support rails 108 extending in parallel from both sides of the sensor moving rod 105; The sensor moving saddles 107 are coupled to the sensor moving rod 105, both sides of which are slidably supported by the sensor moving support rail 108, and the vision sensor 101 is mounted thereon.

The vision sensor 101 searches the length and diameter of the expanded capillary P while moving together with the sensor moving rod 105, and transmits the searched information to the control unit. As the vision sensor 101 , a general laser vision sensor may be applied.

The control unit may determine whether there is a defect in the expanded capillary tube (P) by comparing it with preset information on the expanded capillary tube (P).

That is, when the information transmitted from the vision sensor 101 matches the preset machining shape, the controller reads it as normal, and when it is different from the preset machining shape, the controller reads it as defective, It is possible to control the operation of the capillary loading unit 200, which will be described later, so that the capillary P can be divided and loaded in the loading part 230 .

First, the loading part 230 is disposed on the lower front side of the base frame 56 to be positioned below the rotating plate 61 , and has a loading space 231 extended in the front and rear direction and opened upward. The loading part 230 is supported by the loading part support frame 237 to be spaced upward by a predetermined distance from the ground.

The loading part 230 is divided into a first loading space 232 in which the loading space 231 is loaded with the normally read capillary P, and a second loading space 233 in which the badly read capillary P is loaded. It is provided with a partition partition wall 235 extending up and down.

The capillary loading unit 200 holds the capillary tube P that has been expanded by passing the fourth tube expansion part 151d from the front side of the defective reading unit 100 and loads the gripped capillary tube P into the loading part 230 . .

The capillary loading unit 200 includes a vertical rotation cylinder 201 that can be rotated up and down in a direction corresponding to the direction in which the rotation plate 61 is rotated from the lower side of the rotation plate 61 and can be stretched in length, and a vertical rotation cylinder 201 It is connected to a rotation operation cylinder 220 that rotates the vertical rotation cylinder 201 according to the length extension, and is mounted on the end side of the vertical rotation cylinder 201, and the vertical rotation cylinder 201 is lengthened and rotated upward. The capillary tube (P) fixed to the capillary fixing part 81 is positioned so as to be gripped, and it is located above the first loading space 232 when the length is extended in a state in which the vertical rotation cylinder is rotated downward, and the second loading is performed when the length is extended. A capillary clamp arm 206 positioned above the space 233 to release the capillary tube P so that the capillary tube P is loaded into the first or second loading spaces 232 and 233 is provided.

In addition, the capillary loading unit 200 includes a vertical rotation cylinder 201, a loading driving support frame 225 supporting the rotation operation cylinder 220, and a front and rear driving unit capable of moving the loading driving support frame in the front and rear directions. (240) is further provided.

The loading driving support frame 225 is formed horizontally on the ground and the first horizontal plate 226 on the upper surface of which the vertical rotation cylinder 201 is rotatably mounted, and the side end of the first horizontal plate 226 facing the loading part A vertical plate 227 extending vertically downward from the vertical plate 227, and a second horizontal plate 228 extending from the lower end of the vertical plate 227 toward the loading part.

Front and rear drive unit 240, a plurality of vertical plate support rails 241 extending in parallel in the front and rear directions, spaced apart from each other up and down, and on which vertical plates 227 are slidably mounted back and forth, and the front end of the base frame 58 A rail support bracket 243 that is fixedly mounted on the lower side and a vertical plate support rail 241 is mounted on the side facing the loading part 230, and the cylinder body 247 that moves forward and backward is fixedly mounted on the rail support bracket 243. and a forward and backward movement cylinder 245 including a forward and backward movement rod 246 that is accommodated in the forward and backward movement cylinder body 247 and moves forward and backward and whose end is coupled to the vertical plate 227 . The back-and-forth cylinder is connected to the fluid supply unit.

The capillary clamp arm 206 is equipped with a holding member 43 capable of holding and releasing the capillary tube.

On the other hand, the capillary tube expansion device 1 according to an embodiment of the present invention is positioned between the rotating plate 61 and the tube expansion part 151, and when the expansion pin 165 is inserted into the capillary tube P, the capillary tube P is fixed. It may further include an auxiliary support unit 190 for supporting the state.

Auxiliary support 190 is mounted on the front end of the expansion support frame 180 at a position where the expansion tube 151 is mounted and extends in the forward direction, that is, in the direction of the rotating plate with a predetermined width, the auxiliary support fixing frame 191, and the auxiliary support frame An auxiliary support moving frame 195 mounted on the upper portion of the 191 movably in the front-rear direction, and an auxiliary support cylinder 198 mounted on the auxiliary support moving frame 195 and extendable in length in the vertical direction, the first and A holding member 43 mounted on the upper end of the lifting rod 198b of the auxiliary support cylinder 198 is provided so that the second hooks 45 and 47 face upward.

A plurality of auxiliary support fixed frame 191 is drawn downward on the front end side, and sliding grooves 192 extending in the front-rear direction are formed, and the auxiliary support movable frame 195 is prevented from being separated upwardly at the upper ends of both sides in the width direction. of the constraint piece 194 is mounted.

The auxiliary support moving frame 195 is extended upward from the upper end of the front and rear movable plate 196 which is constrained to be movable back and forth by interviewing the sliding groove 192, and the auxiliary support cylinder 198 ) and a cylinder fixing plate 197 to which the cylinder body portion 198a is fixed.

The auxiliary support moving frame 195 may be manually moved by a user's manipulation, and the auxiliary support cylinder 198 is connected to the fluid supply unit for elevating the lifting rod 198b.

On the other hand, although not shown in the capillary tube expansion device 1 according to an embodiment of the present invention, the control unit, the fluid supply unit, the rotary shaft drive motor 77, the pin rotation drive motor 163 and the ball screw drive motor 161 of the An operation unit (not shown) that may include a plurality of buttons or levers that can be operated by an administrator for a driving command and a power supply unit (not shown) for supplying power required for driving are provided. The power supply unit may be electrically connected to the control unit, and a plug coupled to an outlet for commercial power connection may be applied.

In the capillary tube expansion device 1 according to an embodiment of the present invention, a plurality of tube expansion parts 151 for expanding the capillary tube p in a multi-stage process are arranged in the circumferential direction, and the A plurality of capillary fixing units 81 capable of gripping the capillary in the circumferential direction are installed on the rotating plate 61 to be positioned in front of the expanding tube unit 151 according to the rotated angle of the rotating plate 61, Since the tube expansion process can be made continuously, there is an advantage in that the work efficiency is improved and the productivity can be improved as the working time is shortened.

In addition, the capillary tube expansion device 1 according to an embodiment of the present invention automatically reads the presence or absence of defects through the vision sensor 101, so that the normally read capillary (P) and the defectively read capillary (P) are separated and loaded There is an advantage that work efficiency can be further improved.

As mentioned above, the capillary tube expansion device of the present invention has been described with reference to the embodiment shown in the drawings, but this is only an example, and various modifications and equivalent other embodiments are possible therefrom by those of ordinary skill in the art. will understand that Accordingly, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

1: capillary tube expansion device 10: capillary supply unit
11: capillary supply hopper 20: capillary rising unit
30: capillary mounting frame 40: capillary supply arm
50: supply arm support 56: base frame
60: capillary transfer unit 61: rotating plate
71: rotation shaft 73: first rotation shaft support frame
75: second rotation shaft support frame 76: rotation axis
81: capillary fixing part 100: bad reading part
101: vision sensor 150: capillary light expansion unit
151: expanded pipe 180: expanded pipe support frame
200: capillary loading unit 201: vertical rotation cylinder
220: rotation operation cylinder 230: loading part

Claims (7)

a capillary supply unit for supplying a capillary to be expanded;
A plurality of capillary fixing parts for holding the capillary supplied from the capillary supply unit are installed along the circumferential direction, and a plurality of capillary transfer units including a rotatable rotating plate so that the capillary fixed to each of the capillary fixing parts is moved in the circumferential direction; ;
The inner diameter of the capillary is expanded to a predetermined diameter and length by linear motion in the direction parallel to the capillary toward the tip of the capillary held by the capillary fixing part so as to extend in parallel to the rotational axis of the rotating plate, respectively, in rotation of the rotating plate A plurality of capillary fixing parts are spaced apart from each other in the circumferential direction to correspond to the circumferentially spaced intervals so that the expansion pins inserted for expansion can be respectively inserted into one of the capillaries positioned in the front on the same line. a capillary tube expansion unit including a tube expansion unit;
and a capillary loading unit that grips the capillary expanded in the capillary tube expansion unit and transfers it to the loading unit;
The capillary supply unit is
On the front side of the capillary tube expansion unit, it is arranged to be spaced apart in the lateral direction with respect to the rotation axis of the rotation plate, the capillary tube extends in the longitudinal direction of the rotation shaft to be loaded in parallel in the direction of the rotation axis of the rotation plate, and is formed to be inclined downward toward the rotation plate. Hopper and
a capillary rising unit extending upward through the lower end of the supply hopper to transfer one of the capillaries closest to the rotating plate among the plurality of capillaries in the supply hopper upward;
a capillary mounting frame on which the capillary, which is raised by the capillary rising unit and discharged from the supply hopper in the direction of the rotation axis, is seated;
and a capillary supply arm that grips the capillary seated on the capillary seating frame and moves it toward the adjacent capillary fixing part. The method of claim 1,
a vision sensor for checking the expanded diameter and length of the capillary;
If the information transmitted from the vision sensor matches the preset machining shape, it is read as normal, and if it is different from the preset machining shape, it is read as defective, and the capillary determined to be defective and the capillary determined to be normal are divided into the loading part. Further comprising a control unit for controlling the driving of the capillary loading unit so as to be loaded,
The storage unit
The capillary tube, characterized in that it comprises a partition wall extending vertically so that the internal space opened upward is divided into a first loading space in which the normally read capillary is loaded, and a second loading space in which the badly read capillary is loaded. expansion device. a capillary supply unit for supplying a capillary to be expanded;
A plurality of capillary fixing parts for holding the capillary supplied from the capillary supply unit are installed along the circumferential direction, and a plurality of capillary transfer units including a rotatable rotating plate so that the capillary fixed to each of the capillary fixing parts is moved in the circumferential direction; ;
The inner diameter of the capillary is expanded to a predetermined diameter and length by linear motion in the direction parallel to the capillary toward the tip of the capillary held by the capillary fixing part so as to extend in parallel to the rotational axis of the rotating plate, respectively, in rotation of the rotating plate A plurality of capillary fixing parts are spaced apart from each other in the circumferential direction to correspond to the circumferentially spaced intervals so that the expansion pins inserted for expansion can be respectively inserted into one of the capillaries positioned in the front on the same line. a capillary tube expansion unit including a tube expansion unit;
a capillary loading unit holding the capillary expanded in the capillary tube expansion unit and transferring it to a loading unit;
a vision sensor for checking the expanded diameter and length of the capillary;
If the information transmitted from the vision sensor matches the preset machining shape, it is read as normal, and if it is different from the preset machining shape, it is read as defective, and the capillary determined to be defective and the capillary determined to be normal are divided into the loading part. A control unit for controlling the driving of the capillary loading unit so as to be loaded;
The loading unit includes a partition wall extending vertically to be partitioned into a first loading space in which an internal space opened upwards is loaded with the normally read capillary, and a second loading space in which the badly read capillary is loaded,
The capillary loading unit is
a vertical rotation cylinder capable of being rotatable up and down in a direction corresponding to the direction in which the rotation plate is rotated from the lower side of the rotating plate and extending in length;
a rotation operation cylinder connected to the vertical rotation cylinder to rotate the vertical rotation cylinder according to the length extension;
It is mounted on the end side of the vertical rotation cylinder, and the vertical rotation cylinder is extended in length and is positioned so as to be able to grip the capillary fixed to the capillary fixing part when it rotates upward, and the vertical rotation cylinder is lengthened in a downward rotation It is located above the first loading space when the length is extended, and is located above the second loading space to load the capillary into the first or second loading space. A capillary clamp arm is provided to release the grip of the capillary. Capillary tube expansion device, characterized in that. delete a capillary supply unit for supplying a capillary to be expanded;
A plurality of capillary fixing parts for holding the capillary supplied from the capillary supply unit are installed along the circumferential direction, and a plurality of capillary transfer units including a rotatable rotating plate so that the capillary fixed to each of the capillary fixing parts is moved in the circumferential direction; ;
The inner diameter of the capillary is expanded to a predetermined diameter and length by linear motion in the direction parallel to the capillary toward the tip of the capillary held by the capillary fixing part so as to extend in parallel to the rotational axis of the rotating plate, respectively, in rotation of the rotating plate A plurality of capillary fixing parts are spaced apart from each other in the circumferential direction to correspond to the circumferentially spaced intervals so that the expansion pins inserted for expansion can be respectively inserted into one of the capillaries positioned in the front on the same line. And a capillary tube expansion unit comprising a tube expansion support frame for supporting a plurality of the expansion portion of the tube;
and a capillary loading unit that grips the capillary expanded in the capillary tube expansion unit and transfers it to the loading unit;
The rotation shaft is coupled to the rotation plate through the support frame of the expansion pipe so as to be located on the diameter center side on the circumferential line formed by a plurality of the expansion pipe parts spaced apart from each other in the circumferential direction,
The capillary transfer unit is mounted on the upper surface of the base frame to be spaced apart from each other with the base frame to which the expanded pipe support frame is mounted on the upper surface, and the first and second rotary shafts to support the rotary shaft. It includes a support frame, and a rotational drive unit mounted on the base frame to rotate the rotation shaft,
Rotating plate rotation limiting means for limiting the rotation of the rotating plate so that the capillary fixing part is positioned toward the front side of the expansion tube;
The rotating plate rotation limiting means is
A rotation limiting rod that is installed to face the rotating plate on the first rotating shaft support frame facing the rotating plate and is movably installed in contact with the rotating plate when the capillary fixing part is positioned on the front side of the expansion tube to limit the rotation of the rotating plate Wow,
And a rotation limiting rod driving part for advancing and retreating the rotation limiting rod;
A plurality of the capillary fixing parts on one surface of the rotating plate facing the first rotating shaft support frame are spaced apart from each other in the circumferential direction by a mutually spaced distance, and located on the same horizontal line on the rotation limiting rod according to the rotated position of the rotating plate. A capillary tube expansion device, characterized in that it comprises a plurality of rotation limiting frames for fixing the position of the rotation plate together with the rotation limiting rod to be accommodated in each of the rod receiving groove is formed to accommodate the rotation limiting rod. delete According to claim 1, wherein the capillary rising unit is
A first rod for first raising at least one of the capillaries in the supply hopper by penetrating the supply hopper up and down to be spaced apart from the rotating plate with respect to the inner peripheral surface of one side of the supply hopper on which the capillary seating frame is mounted Wow,
The first rod is spaced apart from the first rod in the longitudinal direction of the supply hopper and passes through the supply hopper at a position between the inner circumferential surface of one side of the supply hopper and the first rod. a second rod that raises the second;
At a position between the first rod and the second rod, it protrudes from the inner circumferential surface of one side of the supply hopper to limit the number of seating of the capillary on the second rod so that only one of the capillaries rises to the second rod. limit bar,
a first rod lifting cylinder for lifting and lowering the first rod;
Capillary tube expansion device, characterized in that it comprises a second rod lifting cylinder for lifting the second rod.

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