TW202007805A - A pickup device for picking up a tubular knitted article from a circular knitting machine for hosiery or the like for tranferring it to a unit adapted to perform additional work on the article - Google Patents

Abstract

A pickup device for picking up a tubular knitted article from a circular knitting machine for hosiery or the like for transferring it to a unit adapted to perform additional work on the article, which includes an active ring driven by an actuating unit to rotate in its central axis in a relative first or second direction, a fixing ring disposed on the active ring, the active ring is movably located between a needle disk and the fixing ring, a linkage mechanism arranged between the active ring and the fixing ring and connected to the active ring, when the actuating unit drives the active ring to turn in the first direction, the linkage mechanism is actuated and in a bundle state, when the actuating unit drives the active ring to turn in the second direction, the linkage mechanism is actuated and in an expanding state, making the needle bundling or withdrawing from the slot.

Description

Pickup device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position

The invention relates to a circular knitting machine for knitting hosiery or the like, in particular to a picking device for picking up tubular knitwear on the circular knitting machine and transferring it to another processing position.

Please refer to FIG. 1. For the conventional production equipment 10 for producing tubular knitwear such as hosiery, it has a circular knitting machine 11, a steel reed assembly 12 and a pick-up device 13. The circular knitting machine 11 is used to knit one or two The open end of the tubular knitwear, the reed assembly 12 is used to close the opening at one end of the tubular knitwear, and the pick-up device 13 is used to remove the tubular knitwear from the circular knitting machine 11 from the circular knitting machine 11 And transferred to the steel reed assembly 12, through the main circular knitting machine 11, the steel reed assembly 12 and the pick-up device 13, can be socks and sewing procedures can be automatically completed.

Please refer to FIGS. 2 and 3, which are a perspective view and a cross-sectional view of the pick-up device 13 of the production equipment 10. The pick-up device 13 mainly has a ring-shaped pick-up 131, a dial 132 and a turntable 133. The ring-shaped pick-up 131 defines a central axis 134, the dial 132 is installed on the ring pickup 131, and the dial 132 has a plurality of needle grooves 1321, each of the needle grooves 1321 is arranged in a manner around the central axis 134, and the turntable 133 is closest to the central axis 134 The periphery extending to the furthest away from the central axis 134 is divided into four zones, which are sequentially from the first zone to the fourth zone. The first zone to the fourth zone are sequentially arranged with a plurality of inclined long oblique slot holes 1331. The oblique slot holes 1331 described above mean that each oblique slot hole 1331 has two ends, and one end of the oblique slot holes 1331 is closer to the central axis 134 than the other end, so that the oblique slot holes 1331 It assumes a tilted state as shown in FIG. 2.

Each needle groove 1321 on the dial 132 is provided with a stocking needle 135 (shown as four stocking needles in FIG. 3). As shown in FIG. 3, the stocking needle 135 in each needle groove 1321 Each has a heel portion 1351, and four adjacent stocking needle 135 knitting heel portions 1351 are respectively inserted into the long oblique slot holes 1331 in the first to fourth areas, when the turntable 133 passes through the actuating unit 136 ( (For example, actuated by a fluid such as gas or liquid) When it rotates in the circumferential direction of the turntable 133, the heel portion 1351 of each stocking needle 135 is inserted into the long oblique slot hole 1331, so that each stocking needle 135 moves along Each long oblique slot hole 1331 is guided to move away from the center axis 134.

It is worth mentioning that before this, the most initial structure used was a plurality of sock picking needles 135 across the two ends of each long oblique slot hole 1331, meaning that due to the needle slot 1321 on the dial 132 There are a large number of them, and the long oblique slot holes 1331 on the turntable 133 are longer. In order to make the long oblique slot holes 1331 long enough to guide the displacement of the sock picking needle 135, each long oblique slot hole 1331 must cross a plurality of sock picking needles 135; Because the length of the long oblique slot hole 1331 is too long, the adjacent oblique slot holes 1331 corresponding to the adjacent stocking needles 135 cannot be arranged adjacently in the same area on the turntable 133; The long oblique slot holes 1331 corresponding to 135 cannot be arranged in the same area on the turntable 133, so the long oblique slot holes 1331 are arranged in order from the first area of the turntable 133 to the fourth area of the turntable 133, and then according to the foregoing The arrangement order of the first zone to the fourth zone is repeatedly arranged, and the long oblique slot holes 1331 of the turntable 133 are arranged as shown in FIGS. 2 and 3, and the heel portion 1351 of the adjacent stocking needle 135 is correspondingly located on the turntable 133 The position of the long oblique slot hole 1331 in different areas makes the heel portions 1351 of adjacent sock picking needles 135 need to be set at different positions. If the turntable 133 is divided into four areas, each sock picking needle 135 must have four types The heel portion 1351 is located in different forms at different positions. The heel portion 1351 of the different types of stocking needles 135 is provided with long oblique groove holes 1331 corresponding to different areas on the turntable 133. The user installs each stocking needle 135 in When the needle grooves 1321 are on, the sock picking needles 135 corresponding to the first area to the fourth area need to be sequentially arranged into the needle groove 1321, and then the sock picking needles 135 corresponding to the first area described above are sequentially arranged to The sock picking needles 135 corresponding to the fourth area are arranged repeatedly, so that each sock picking needle 135 adjacent to the sock picking needle 135 is a long oblique slot hole 1331 corresponding to a different area on the turntable 133.

However, due to the different shapes of the aforementioned stocking needles 135, different molds are used in manufacturing, and it is not possible to share parts, and the heel portions 1351 of the various types of stocking needles 135 are located at different positions. Not only does it cause inconvenience of assembly and complicated assembly process, but also because of the large number of long oblique slot holes 1331, and the arrangement of the long oblique slot holes 1331 causes the diameter of the turntable 133 to be longer, and there is a loss of excessive volume .

In addition, please refer to European Patent EP 2250306 B1, which discloses a similar turntable structure; the turntable needs to be coordinated by long oblique slot holes, studs and internal grooves to enable it to control the access of multiple socks. Or away from the central axis.

However, the turntable of the foregoing structure is matched with each sock picking needle. Not only the long oblique slot hole needs to be relatively matched with the stud, but also the inner slot is needed to complete the limiting action, resulting in the lack of inconvenience in assembly alignment.

The purpose of the present invention is to solve the problem of complicated assembling of sock picking needles by a pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position, and thus to solve the problem that the diameter of the turntable is long, causing the turntable The volume is too large to be missing.

In order to solve the aforementioned shortcomings, the present invention is a pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position, including: a movable ring, which is coaxially arranged on a dial and is subjected to a The detent unit is driven to rotate with its central axis in a relative first direction or a second direction, a fixed ring is coaxially fixed on the movable ring, and the movable ring can be movably located on the dial and the fixed Between the rings, a link mechanism is installed between the movable ring and the fixed ring, and interlocks with the movable ring. When the detent unit drives the movable ring to rotate in the first direction, the link mechanism It is in a closed state when it is actuated; when the movement unit drives the movable ring to rotate toward the second direction, the link mechanism is actuated and is in an expanded state.

In a preferred embodiment, the fixing ring has a fixing ring body and a plurality of fixing arms, each of the fixing arms extends radially outward from the outer periphery of the fixing ring body, and between the fixing arms Set at equal intervals.

In a preferred embodiment, the movable ring has a plurality of concave arc segments and a plurality of convex arc segments, each of the concave arc segments and each of the convex arc segments are alternately arranged with each other, and each of the concave arc segments corresponds to the fixed arm The width of the fixed arm is smaller than the arc length of the corresponding concave arc segment, and each convex arc segment is smaller than the angular distance between adjacent two fixed arms.

In a preferred embodiment, the link mechanism includes a plurality of limit blocks, a plurality of pivot pieces, and a plurality of guide rods, each of the limit blocks is curved, and the two ends of each of the limit blocks are respectively It has a first embedding segment and a second embedding segment, and two adjacent limit blocks are respectively separably embedded with each of the first embedding segment and the second embedding segment, each The limit block is disposed within the inner circle defined by the inner circumference of the movable ring, one end of each pivoting member is pivotally connected to the convex arc section of the corresponding movable ring, and each pivoting member is opposite to the One end of the convex arc segment is pivotally connected to the corresponding limit block, and each of the limit blocks is correspondingly provided with two of the guide rods, so that the number of each limit block is at least equal to that of each pivoting member The number of the guide rods is at least twice the number of the limit blocks. One end of the two guide rods corresponding to the limit blocks is fixed to the fixing ring.

In a preferred embodiment, the two guide rod systems corresponding to the limit blocks are parallel to each other.

In a preferred embodiment, the detent unit is connected to one of the convex arc segments.

In a preferred embodiment, the detent unit has a driving element and a driving element, the driving element is connected to one side of the driving element, and the side of the driving element away from the driving element is connected to one of the convex arc segments .

In a preferred embodiment, the driving member has a first arm section, a connecting section and two second arm sections, the first arm section is pivotally connected to the drive assembly, and the first arm section is opposite to the drive assembly One end is pivotally connected to a predetermined position between the two ends of the connecting section, the two ends of the connecting section are respectively connected to the two second arm sections, and each second arm section is connected to the movable ring relative to one end of the connecting section.

In a preferred embodiment, the connecting segment is disposed adjacent to or in contact with the outer arc surface of the corresponding convex arc segment, and the two second arm segments are disposed adjacent to or in contact with the two ends of the corresponding convex arc segment, respectively .

In a preferred embodiment, the fixing ring has a plurality of recessed portions, which are formed at an angular interval on the lower surface of the body of the fixing ring, each recessed portion is provided corresponding to each pivoting member, and the arc length of each recessed portion is It is greater than the width of each of the pivoting members for the pivoting member to swing within the arc length of the corresponding recessed portion.

In a preferred embodiment, the dial has a dial body and a plurality of needle grooves, the dial has a dial body and a plurality of needle grooves, the dial body has a ring shape, and each of the needle groove rings is located at The inner circumference of the dial body, each of the needle grooves is provided for a sock retrieval needle to be movably inserted, each of the sock retrieval needles has a heel portion extending upward, and the heel portion faces the axis of the dial body One side of the direction is pressed against the outer arc surface of each of the limiting blocks.

In a preferred embodiment, a concave portion is formed at the tail end of each sock taking needle, the concave portion extends from the needle groove toward the dial body and is exposed in the needle groove, and an annular elastic member is sleeved on Each of the needle grooves is located between the dial body and each of the needle grooves, and abuts against the concave portion of each of the stocking needles.

In a preferred embodiment, the detent unit is arranged at a predetermined place of an annular pick-up member, and the movable ring, the fixed ring and the dial are coaxially arranged on the annular pick-up member.

In a preferred embodiment, the detent unit is provided at a predetermined location of a ring-shaped pick-up body, the ring-shaped pick-up member includes a ring-shaped pick-up body and a ring wall, the ring wall is directed upward from the outer circumference of the ring-shaped pick-up body The extension ring, the movable ring, the fixed ring and the dial are coaxially arranged on the ring-shaped pick-up body and located in the ring wall.

In a preferred embodiment, the ring wall is provided with a plurality of fixing grooves and a plurality of accommodating grooves at angular intervals, each of the fixing grooves corresponds to the setting of each fixing arm of the fixing ring, so that each fixing The end of the arm away from the fixing ring body is fixed in the corresponding fixing groove.

In a preferred embodiment, each of the accommodating grooves is provided at an angular interval on the ring wall, the number of each accommodating groove is smaller than the number of each convex arc section, and each accommodating groove is provided in the corresponding phase Between two adjacent fixed grooves, and each of the accommodating grooves is provided with a bearing, and each bearing is in contact with the corresponding outer arc surface of the convex arc segment.

In a preferred embodiment, one end of the ring-shaped pick-up body opposite to the detent unit has a projection extending radially outwards for axial insertion of a pair of positioning rods.

In a preferred embodiment, the first arm section is pivotally connected to one end of the driving assembly, and a sensing rod is further provided upward in the axial direction.

Each end of each of the limit blocks has an end surface, and each of the limit blocks has a top surface and a bottom surface arranged along the extending direction of the central axis, and the first embedding section of each of the limit blocks and The second embedding sections are respectively a convex block, the first embedding section is protruded from one of the end faces and connected to the top surface, and the second embedding section is protruded from the other of the end faces and is connected to the bottom surface Connected, and the first embedding section of each of the limit blocks is used to be engaged with the second embedding section of the adjacent limit block, and the second embedding section of each of the limit blocks is adjacent to The second embedding section of the limit block is engaged.

In a preferred embodiment, the ring-shaped pick-up member is provided with a circular opening, and the ring wall faces the opening.

In a preferred embodiment, the driving member has a brake pivot hole and two brake positioning holes, the brake pivot hole is pivotally provided in the driving assembly, so that the driving member can pivot about the air-making pivot hole, and The two braking positioning holes are respectively fixed on the concave arc section by two screws.

In a preferred embodiment, each of the convex arc segments has a first pivoting slot, each of the limiting blocks is provided with a second pivoting slot, and one end of each pivoting member is pivotally arranged on the corresponding In a pivoting slot, the other end of each pivoting member is pivoted in the corresponding second pivoting slot.

In a preferred embodiment, the number of convex arc segments is six.

Thereby, when the actuating unit is in the first position in the expanded state, the pivoting member pivots, so that each limit block slides along the extension direction of the corresponding two guide rods in the direction of the reverse central axis, and each limit block Push against the heel of each stocking needle, so that each stocking needle moves in the direction of the reverse central axis; when the actuating unit is in the second position, the pivoting member pivots so that each limit block moves along the corresponding two The extending direction of the guide rod slides toward the central axis, and the annular elastic member surrounds the outer circumference of the annular structure formed by the needle groove and abuts against the concave portion of each sock retrieval needle, so that each heel of the sock retrieval needle abuts one of the limit positions Block, and move together with the limit blocks toward the central axis; the aforementioned structure not only allows the shape of the stocking needles to be consistent, but also makes it easier to assemble the stocking needles in the needle grooves, and the present invention can only borrow All the sock picking needles can be moved by the surrounding limiting blocks, so that the present invention not only has the effect of easy assembly, but the design of the link mechanism makes the overall pick-up device more compact.

4 to 11, the present invention is a pick-up device 100 for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position, including a ring-shaped pick-up 20, a dial 30, and a movable The ring 40, a fixed ring 80, a link mechanism 90, an actuating unit 60, and an annular elastic member 70.

The ring-shaped pick-up member 20 has a ring-shaped pick-up body 27, and the ring-shaped pick-up body 27 is provided with a circular opening 21 having a first diameter D1. The ring-shaped pick-up member 20 has a ring wall 22 facing the opening 21 The bottom of the wall 22 protrudes inwards with a ring-shaped pedestal 23. The pedestal 23 surrounds the opening 21 and defines a second diameter length D2. The second diameter length D2 is smaller than the first diameter length D1, so that the ring wall 22 and the table The seats 23 are stepped, the opening 21 has a central axis 24, and the center lines of the ring wall 22 and the pedestal 23 overlap the central axis 24.

The dial 30 has a ring-shaped dial body 31, and the dial body 31 has a third diameter length D3, which is greater than the second diameter length D2 and less than or equal to the first diameter length D1, so that the dial body 31 can be placed on the base 23, and the dial body 31 is surrounded by a plurality of needle grooves 32, each of the needle grooves 32 is set around the inner circumference of the dial body 31 by the dial 30 The ring-shaped pick-up member 20 enables each needle slot 32 to be centered on and around the central axis 24.

The movable ring 40 is coaxially arranged on the dial 30 and can rotate in a first direction O1 (shown in FIG. 7) or a second direction O2 (shown in FIG. 9) opposite to the central axis 24. The movable ring 40 There are a plurality of concave arc segments 41 and a plurality of convex arc segments 42. Each concave arc segment 41 and each convex arc segment 42 are alternately arranged with each other. Each convex arc segment 42 has a first pivot groove 421.

The fixed ring 80 is coaxially arranged on the movable ring 40, and the movable ring 40 can be movably located between the dial 30 and the fixed ring 80.

The link mechanism 90 is disposed between the movable ring 40 and the fixed ring 80, and interlocks with the movable ring 40. The link mechanism 90 includes a plurality of limit blocks 92, a plurality of pivot pieces 93, and a plurality of guide rods 91, each of which limits The positioning block 92 is arc-shaped, and the two ends of each limiting block 92 respectively have a first embedding section 922 and a second embedding section 923, and the two adjacent limiting blocks 92 are respectively An engaging segment 922 and a second engaging segment 923 can be separately engaged with each other, each of the limiting blocks 92 is disposed within an inner circle defined by the inner circumference of the movable ring 40, and one end of each pivoting member 93 is pivoted Connected to the convex arc section 42 of the corresponding movable ring 40, one end of each pivoting member 93 opposite (away from) the convex arc section 42 is pivotally connected to the corresponding limit block 92, and each limit block 92 is correspondingly provided with a guide Two of the rods 91 make the number of the limit blocks 92 at least equal to the number of the pivoting members 93, and the number of the guide rods 91 is at least twice the number of the limit blocks 92, which means that the present invention is Taking six limit blocks 92 as an example, each limit block 92 is correspondingly provided with two guide rods 91, so the number of guide rods 91 is twelve, and the number of pivoting members 93 is the same as that of limit block 92, six. But it is not limited to this; one end of the two guide rods corresponding to each limit block 92 is fixed to the fixing ring 80, and the limit block 92 can slide along the axial extension direction of the corresponding two guide rods 91, Each of the limiting blocks 92 is provided with a second pivoting slot 921, one end of the pivoting member 93 is pivoted in the first pivoting slot 421, and the other end of the pivoting member 93 is pivoted in the second pivoting Inside slot 921.

In this embodiment, the number of the limiting blocks 92 is at least three connected at an angle, preferably six at an equal angle, and each of the limiting blocks 92 is arc-shaped, and each of the limiting blocks 92 It is set within the inner circle defined by the inner circle of the movable ring 40.

In this embodiment, the number of convex arc segments 42 is six, and the two guide rods 91 corresponding to the limiting blocks 92 are arranged in parallel.

A plurality of sock retrieval needles 50 are respectively provided in the corresponding needle grooves 32, so that each sock retrieval needle 50 is arranged around the central axis 24, and each sock retrieval needle 50 has a heel 51 and a recess 52, respectively. The heel portion 51 of the sock picking needle 50 abuts one of the limit blocks 92 respectively, and the recess 52 is farther away from the central axis 24 than the heel portion 51. In this embodiment, the recess 52 is located on the hoop needle 50 facing the ring wall 22 at the end.

The actuating unit 60 has a driving component 61, a driving member 62 and a sensing rod 63. The actuating unit 60 is disposed at a predetermined position of the ring-shaped pickup 20, and the driving component 61 can be at a first position A (see FIG. 7 And the second position B (shown in Figure 9) to move the movable ring 40 in the first direction O1 (shown in Figure 7) or the second direction O2 (shown in Figure 9) The driving member 62 has a first arm section 623, a connecting section 624, and two second arm sections 625. The first arm section 623 is pivotally connected to the driving assembly 61, and the first arm section 623 is pivotally connected to one end of the driving assembly 61. The sensor shaft 63 is further arranged upward in the axial direction, so as to use a sensor (not shown) to sense whether the driving component 61 moves to the first position A or the second position B, and transmit the signal to the controller (Figure (Not shown), and then calculate and determine whether other stations must be actuated or actuated time; the first arm segment 623 is pivotally connected to a predetermined position between the two ends of the connecting segment 624 relative to the end of the driving assembly 61, and the two ends of the connecting segment 624 Each second arm segment 625 is connected to each other, and one end of each second arm segment 625 opposite to the connecting segment 624 is connected to the movable ring 40, and the connecting segment 624 is disposed adjacent to or in contact with the outer arc surface of the corresponding convex arc segment 42, second The arm section 625 is disposed adjacent to or in contact with the two ends of the corresponding convex arc section 42; the driving member 62 further has a brake pivot hole 621 and two brake positioning holes 622, and the brake pivot hole 621 passes through the first arm section 623 On the top, the brake pivot hole 621 is pivoted in the drive assembly 61, so that the driving member 62 can pivot about the brake pivot hole 621, the two brake positioning holes 622 are respectively penetrated in the two second arm sections 625, and the two brake positioning The holes 622 are respectively fixed to the corresponding concave arc segments 41 by two screws, and are driven between the first position A (as shown in FIG. 7) and the second position B (as shown in FIG. 9) by the driving component 61 and Linking the driving member 62 enables the driving member 62 to drive the concave arc segment 41 to rotate around the central axis 24, which means that the concave arc segment 41 centers around the central axis 24, and then rotates along the circumferential direction of the concave arc segment 41.

The ring-shaped elastic member 70 is substantially circular, is disposed around the dial 30, and abuts the recess 52 of each sock retrieval needle 50, and is elastically contracted by the ring-shaped elastic member 70, so that each sock retrieval needle 50 can be synchronized toward the central axis 24 The direction is closed, so that each stocking needle 50 can continue to rest on one of the limit blocks 92; that is, the recess 52 formed at the rear end of each stocking needle 50 is directed from the needle groove 32 toward the dial body The direction of 31 extends and is exposed outside the needle groove 32, and the annular elastic member 70 is sleeved on the outer circumference of the annular structure formed by each needle groove 32, and is located between the dial body 31 and each needle groove 32 , And abut against the recess 52 of each sock taking needle 50.

Preferably, since each limiting block 92 has a first embedding segment 922 and a second embedding segment 923, the first embedding segment 922 of each limiting block 92 is provided with the Two engaging sections 923 are engaged; both ends of each limiting block 92 respectively have one end surface 924, and each limiting block 92 has a top surface 925 and a bottom surface 926 arranged along the extending direction of the central axis 24. In the embodiment, the first embedding section 922 and the second embedding section 923 of each limiting block 92 are respectively a convex block, and the first embedding section 922 protrudes from one of the end surfaces 924 and is connected to the top surface 925, and The second embedding segment 923 protrudes from the other end surface 924 and is connected to the bottom surface 926; and the first embedding segment 922 of each limiting block 92 is provided for embedding with the second embedding segment 923 of the adjacent limiting block 92 The second embedding segment 923 of each limiting block 92 is engaged with the first embedding segment 922 of the adjacent limiting block 92.

As described above, when the sock picking needle 50 is located corresponding to the first embedding segment 922 and the second embedding segment 923, when the heel 51 abuts on the first embedding segment 922 and the second embedding segment 923, the socks are taken The heel portion 51 of the needle 50 can abut against the first engaging section 922 and the second engaging section 923 at the same time, thereby, when the end surface 924 of the adjacent limiting block 92 is separated, the needle 50 can still be abutted The first embedding section 922 or the second embedding section 923, so as to prevent the sock picking needle 50 located between the two adjacent limiting blocks 92 from being lifted off the limiting block 92, thereby allowing each of the limiting blocks 92 The heel 51 of all the sock needles 50 can be pressed against.

In a preferred embodiment, since the present invention has a fixed ring 80 coaxially fixed to the movable ring 40, the link mechanism 90 is located between the movable ring 40 and the fixed ring 80, therefore, the fixed ring 80 has a fixed ring The body 82 and a plurality of fixing arms 83, and the fixing ring body 82 can be formed by combining at least three arc-shaped penetration sections 81 (in this embodiment, six are illustrated, but not limited thereto), each arc Each of the shaped penetration sections 81 has a concave portion 811 and two through holes 812, and each concave portion 811 is formed on the lower surface of the corresponding arc-shaped penetration section 81 at an angular interval, and the arc length of each arc-shaped penetration section 811 is greater than that of the corresponding The width of the pivoting member 93 for the pivoting member 93 to swing within the arc length of the corresponding concave portion 811, and the two through holes 812 are radially passed through the corresponding arc-shaped through sections 81, and the two through holes 812 They are located at the two ends of the corresponding recessed portion 811 and are spaced apart from the recessed portion 811; when the fixed ring 80 is disposed on the movable ring 40, the recessed portions 811 of each arc-shaped penetration section 81 respectively accommodate one of the pivoting members 93 So that each pivoting member 93 is correspondingly accommodated in one of the recessed portions 811, and the through holes 812 of each arc-shaped through section 81 are respectively provided with one of the guide rods 91 fixed so that each guide rod 91 is respectively Fixed in one of the through holes 812; each fixed arm 83 extends radially outward from the outer circumference of the fixed ring body 82, and each fixed arm 83 is equidistantly spaced apart, and each fixed arm 83 is Set corresponding to each concave arc section 43.

Preferably, a plurality of accommodating grooves 25 are recessed in the annular wall 22 of the annular pick-up member 20, and a bearing 26 is installed in each accommodating groove 25, and each bearing 26 is provided to bear against the concave arc section 41. This enables the concave arc section 41 to rotate more smoothly.

Preferably, the ring wall 22 of the ring-shaped pick-up member 20 is further provided with a plurality of fixing grooves 28, and each fixing groove 28 is provided corresponding to each fixing arm 83 of the fixing ring 80, so that each fixing arm 83 is away from the fixing ring body 21 Is fixed in the corresponding fixing groove 28.

Preferably, an end of the ring-shaped pick-up body 27 opposite (away from) the actuating unit 60 has a protrusion 29 extending radially outwards, for the pair of positioning rods 291 to be axially inserted.

The above is the structural configuration and connection relationship of the present invention, and the operation mode of the present invention is as follows.

Please refer to FIGS. 6, 10 and 17, the actuating unit 60 operates between the first position A (please refer to FIG. 7) and the second position B (please refer to FIG. 9) to make the pickup device of the present invention The link mechanism 90 of 100 is in a closed state Q1 and an expanded state Q2; when processing is performed in the normal state, the pick-up device 100 of the present invention is in the closed state Q1, and after knitting to form a tube-to-knitted product, it is necessary to The converged state Q1 transitions to the expanded state Q2.

Please refer to FIG. 6 to FIG. 8. During the weaving process, the pick-up device 100 of the present invention is initially in the closed state Q1, and the actuating unit 60 is in the first position A. After the weaving process is completed, The actuating unit 60 is actuated from the first position A to the second position B. Please also refer to FIGS. 9 to 11 at the same time. The driving member 62 is driven by the driving assembly 61, and the corresponding concave arc section 41 is connected through the driving member 62 to The movable ring 40 is rotated in the first direction O1, and the pivoting member 93 is pivoted by the rotation of the movable ring 40, and each pivoting member 93 pivotally drives the displacement of the limiting block 92 connected thereto due to the limitation One of the guide rods 91 is respectively penetrated on the block 92, so that the movement position of each limit block 92 is restricted, so that the limit block 92 on each guide rod 91 faces the movable ring 40 along the extending direction of each guide rod 91 The concave arc segment 41 moves, and each stop block 92 moves toward the corresponding concave arc segment 41, and at the same time pushes against the heel 51 of each stocking needle 50, thereby moving each stocking needle 50 also toward the movable ring 40, On the other hand, the link mechanism 90 of the pickup device 100 of the present invention is in the expanded state Q2.

When the operation procedure needs to return from the expanded state Q2 to the closed state Q1 for the next pick-up operation, the actuating unit 60 can be switched from the second position B to the first position A, and the driving member 62 is linked by the driving assembly 61 , And then the driving member 62 drives the corresponding concave arc segment 41 to rotate the movable ring 40 in the second direction O2. By the rotation of the movable ring 40, the pivoting members 93 are pivoted, and the pivoting members 93 pivot at the same time The limit blocks 92 on the guide rods 91 are driven to move toward the central axis 24. Since the annular elastic member 70 presses the recess 52 of each sock picking needle 50, the sock picking needles 50 follow the limit blocks 92 toward the central axis 24 moves.

Preferably, when the pickup device 100 of the present invention transitions from the constricted state Q1 to the expanded state Q2, each stopper 92 is displaced in the direction of the reverse central axis 24 along the extending direction of each guide rod 91, so that the adjacent The end surfaces 924 of the limiting blocks 92 are separated, and the adjacent first blocking section 922 and the second bonding section 923 of each limiting block 92 still have overlapping parts, so that the limiting blocks on each guide rod 91 When 92 slides along the extension direction of the period, the heel 51 of each sock taking needle 50 can continue to abut against each stop block 92.

In summary, in the expanded state Q2, the actuating unit 60 is located at the second position B, and the pivoting member 93 pivots, so that the limit blocks 92 on each guide rod 91 are reversed along the extending direction of the guide rod 91 Sliding in the direction of the central axis 24, each stop block 92 pushes against the heel 51 of each sock retrieval needle 50, so that each sock retrieval needle 50 moves away from the central axis 24; when the actuating unit 60 is in the first position At time A, the pivoting member 93 pivots, causing the stopper 92 on each guide rod 91 to slide toward the central axis 24 along the extending direction of the guide rod 91, and the annular elastic member 70 surrounds the outer periphery of the annular structure formed by the needle groove 32 The circle abuts against each recess 52 of each stocking needle 50, so that the heel 51 of each stocking needle 50 abuts one of the limit blocks 92, and moves toward the central axis 24 together with the limit blocks 92.

According to the above-mentioned structure, the pick-up device 100 of the present invention can not only make the shape of the stocking needles 50 consistent, can be manufactured using the same mold, but also can be a common material, and thus it is easier to assemble the stocking needles 50 to the needle grooves 32 In addition, the pick-up device 100 of the present invention can only form the surrounding limit blocks 92 formed by the link mechanism 90, that is, it can move all the sock picking needles 50 synchronously, which not only achieves the effect of synchronized operation and easy assembly Compared with the conventional structure, the design of the link mechanism 90 of the present invention makes the pickup device 100 as a whole more compact.

Knowledge 10‧‧‧ Production equipment 11‧‧‧Circular knitting machine 12‧‧‧Suture device 13‧‧‧ Picking device 131‧‧‧ Ring pick 132‧‧‧ dial 1321‧‧‧Needle groove 133‧‧‧Turntable 1331‧‧‧Long slot 134‧‧‧ Central axis 135‧‧‧ Take sock needle 1351‧‧‧Heel 136‧‧‧Actuating unit this invention 100‧‧‧ Pickup device 20‧‧‧ Ring pick 21‧‧‧ opening D1‧‧‧The first diameter 22‧‧‧ring wall 23‧‧‧pedestal D2‧‧‧Second diameter length 24‧‧‧Central axis 25‧‧‧Accommodation slot 26‧‧‧bearing 27‧‧‧ Ring pick body 28‧‧‧Fixing groove 29‧‧‧Convex 291‧‧‧Alignment rod 30‧‧‧ dial 31‧‧‧ dial body D3‧‧‧The third diameter 32‧‧‧Needle groove 40‧‧‧Activity ring 41‧‧‧Concave arc 42‧‧‧Convex arc 421‧‧‧First pivot slot 50‧‧‧ Take sock needle 51‧‧‧Heel 52‧‧‧recess 60‧‧‧Actuating unit 61‧‧‧Drive components 62‧‧‧Drive parts 621‧‧‧brake pivot hole 622‧‧‧Brake positioning hole 623‧‧‧The first arm 624‧‧‧ connection section 625‧‧‧Second arm 63‧‧‧Induction rod 70‧‧‧Ring elastic parts 80‧‧‧Retaining ring 81‧‧‧Curved section 811‧‧‧Depression 812‧‧‧Through hole 82‧‧‧Retaining ring body 83‧‧‧ Fixed arm 90‧‧‧Link mechanism 91‧‧‧Guide rod 92‧‧‧Limit block 921‧‧‧Second pivot slot 922‧‧‧The first embedding section 923‧‧‧Second inlay section 924‧‧‧Face 925‧‧‧Top 926‧‧‧Bottom 93‧‧‧Pivot A‧‧‧First position B‧‧‧Second position O1‧‧‧First direction O2‧‧‧Second direction Q1‧‧‧Closing status Q2‧‧‧Expansion

1 is a schematic diagram of a conventional equipment for producing tubular knitwear such as socks; FIG. 2 is a perspective view of a conventional pickup device; FIG. 3 is a cross-sectional view of the conventional pickup device; FIG. 4 is a preferred embodiment of the pickup device of the present invention Fig. 5 is an exploded view of the preferred embodiment of the pick-up device of the present invention; Fig. 6 is a cross-sectional view of the preferred embodiment of the pick-up device of the present invention when it is in a closed state; Fig. 7 is a comparison of the pick-up device of the present invention FIG. 8 is a partially enlarged cross-sectional view of the preferred embodiment of the pickup device of the present invention when it is in a closed state; FIG. 9 is a partially enlarged cross-sectional view of the preferred embodiment of the pickup device of the present invention when it is in a closed state; FIG. 9 10 is a cross-sectional view of a top view of the preferred embodiment of the pickup device of the present invention in an expanded state; FIG. 11 is a partially enlarged cross-sectional view of the preferred embodiment of the pickup device of the present invention in an expanded state; FIG. 12 is a The preferred embodiment of the pickup device of the present invention is a top view when it is bundled after simplifying the component; FIG. 13 is a cross-sectional view taken along line 13-13 in FIG. 12; FIG. 14 is a simplified device of the preferred embodiment of the pickup device of the present invention Fig. 15 is a cross-sectional view according to the section line 15-15 in Fig. 14; Fig. 16 is a schematic view of the displacement of the sock needle in the retracted state and the expanded state of the preferred embodiment of the pickup device of the present invention. FIG. 17 is a perspective view of the preferred embodiment of the pick-up device of the present invention after simplification of components in a bundled state and an expanded state.

100‧‧‧ Pickup device

20‧‧‧ Ring pick

21‧‧‧ opening

D1‧‧‧The first diameter

22‧‧‧ring wall

23‧‧‧pedestal

D2‧‧‧Second diameter length

24‧‧‧Central axis

25‧‧‧Accommodation slot

26‧‧‧bearing

30‧‧‧ dial

31‧‧‧ dial body

D3‧‧‧The third diameter

32‧‧‧Needle groove

40‧‧‧Activity ring

41‧‧‧Concave arc

42‧‧‧Convex arc

421‧‧‧First pivot slot

51‧‧‧Heel

52‧‧‧recess

60‧‧‧Actuating unit

61‧‧‧Drive components

62‧‧‧Drive parts

621‧‧‧brake pivot hole

622‧‧‧Brake positioning hole

70‧‧‧Ring elastic parts

80‧‧‧Retaining ring

81‧‧‧Through

811‧‧‧Depression

812‧‧‧Through hole

90‧‧‧Link mechanism

91‧‧‧Guide rod

92‧‧‧Limit block

921‧‧‧Second pivot slot

922‧‧‧The first embedding section

923‧‧‧Second inlay section

924‧‧‧Face

925‧‧‧Top

926‧‧‧Bottom

93‧‧‧Pivot

50‧‧‧ Take sock needle

Claims (23)

A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position, comprising: a movable ring, which is coaxially arranged on a dial and driven by an actuating unit with its central axis Rotating in a first direction or a second direction opposite; a fixed ring coaxially arranged on the movable ring, and the movable ring can be movably located between the dial and the fixed ring; and a link mechanism , Installed between the movable ring and the fixed ring, and linked with the movable ring, when the actuating unit drives the movable ring to rotate in the first direction, the link mechanism actuates and is in a closed state; When the actuating unit drives the movable ring to rotate toward the second direction, the link mechanism operates to be in an expanded state. A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 1, wherein the fixing ring has a fixing ring body and a plurality of fixing arms, each of the fixing arms The fixing ring extends radially outward from the outer peripheral edge of the fixing ring body, and the fixing arms are arranged at equal intervals. A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 1, wherein the fixed ring has a plurality of fixed arms and the movable ring has a plurality of concave arc segments And a plurality of convex arc segments, each concave arc segment and each convex arc segment are alternately arranged, each concave arc segment corresponds to a fixed arm, and the width of the fixed arm is smaller than the arc of the corresponding concave arc segment Long, each convex arc segment is smaller than the angular distance between adjacent two fixed arms. A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 3, wherein the link mechanism includes a plurality of limit blocks, a plurality of pivot pieces, and a plurality of A guide rod, each of the limit blocks is arc-shaped, and two ends of each limit block respectively have a first embedding section and a second embedding section, and the two adjacent limit blocks are respectively Each of the first embedding segment and the second embedding segment can be separately engaged with each other, each of the limit blocks is disposed within an inner circle defined by the inner circumference of the movable ring, and each of the pivoting members One end of each is pivotally connected to the convex arc section of the corresponding movable ring, and one end of each pivoting member relative to the convex arc section is pivotally connected to the corresponding limit block, and each of the limit blocks is correspondingly provided with the Two of the equal guide bars make the number of the limit blocks at least equal to the number of the pivoting members, and the number of the guide bars is at least twice the number of the limit blocks, corresponding to the limit One end of the two guide rods of the block is fixed to the fixing ring. The pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 4, wherein the two guide bars corresponding to each of the limit blocks are parallel to each other. A pickup device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 3, wherein the actuating unit is connected to one of the convex arc segments. A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 6, wherein the actuating unit has a driving assembly and a driving member, the driving assembly is connected to the One side of the driving member, the side of the driving member away from the driving assembly is connected to one of the convex arc segments. A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 7, wherein the driving member has a first arm section, a connecting section and two second sections An arm segment, the first arm segment is pivotally connected to the driving assembly, the first arm segment is pivotally connected to a predetermined position between the two ends of the connecting segment relative to one end of the driving assembly, and the two ends of the connecting segment are respectively connected to the second segment Two arm sections, one end of each second arm section opposite to the connecting section is connected to the movable ring. A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 8, wherein the connecting section is adjacent to or in contact with the corresponding outer arc surface of the convex arc section According to the arrangement, the two second arm sections are respectively disposed adjacent to or in contact with the corresponding two ends of the convex arc section. A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 4, wherein the fixing ring has a plurality of recessed portions, which are formed on the body of the fixing ring at angular intervals The lower surface of each recessed portion is provided corresponding to each pivoting member, and the arc length of each recessed portion is greater than the width of each pivoting member, so that the pivoting member is within the range of the arc length of the corresponding recessed portion swing. A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 4, wherein the dial has a dial body and a plurality of needle grooves, the dial body Each needle groove is provided on an inner circumference of the dial body. Each needle groove is provided for a sock retrieval needle to be movably inserted. Each sock retrieval needle has a heel portion extending upward. One side of the heel part in the direction of the axis of the dial body presses against the outer arc surface of each of the limiting blocks. A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 11, wherein a recess is formed at the tail end of each of the stocking needles, and the recess is from the needle The groove extends in the direction of the dial body and is exposed outside the needle groove, and an annular elastic member is sleeved on the outer circumference of the ring structure formed by each of the needle grooves, and is located between the dial body and each needle Between the grooves and rest in the recesses of the stocking needles. A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 11, wherein the actuating unit is provided at a predetermined place of an endless pick-up, the movable ring The fixed ring and the dial are coaxially arranged on the ring-shaped pick-up member. A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 4, wherein the actuating unit is provided at a predetermined position of an endless pick-up member The piece includes a ring-shaped pick-up body and a ring wall, the ring wall extends upward from the outer circumference of the ring-shaped pick-up body, the movable ring, the fixed ring and the dial are coaxially arranged on the ring-shaped pick-up body, and Located in the ring wall. A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 14, wherein the ring wall is provided with a plurality of fixing grooves and a plurality of accommodations at angular intervals Each of the fixing grooves is corresponding to the fixing arms of the fixing ring, so that the end of each fixing arm away from the fixing ring body is fixed in the corresponding fixing groove. A pick-up device for picking up tubular knitwear on a circular knitting machine as described in claim 15 and transferring it to another processing position, wherein each of the accommodating grooves and each of the accommodating grooves are provided at an angular interval on the ring wall The number of grooves is smaller than the number of each convex arc segment, except for the actuating unit, each of the accommodating grooves is disposed between two adjacent fixed grooves, and a bearing is installed in each of the accommodating grooves , Each bearing system is in contact with the corresponding outer arc surface of the convex arc segment. A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 14, wherein one end of the ring-shaped pick-up body with respect to the actuation unit extends radially outward There is a protrusion for axial insertion of a pair of position rods. A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 8, wherein the end of the first arm section pivotally connected to the drive assembly is axial A sensor rod is further arranged upward. A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 4, wherein each end of each of the limit blocks has one end surface, and each of the limit positions The block has a top surface and a bottom surface arranged along the extending direction of the central axis, the first embedding section and the second embedding section of each of the limiting blocks are respectively a convex block, and the first embedding section The one of the end faces is convex and connected to the top face, and the second embedding section is convex from the other end face and connected to the bottom face, and the first embedding section of each of the limit blocks is provided with The second embedding segments of the adjacent limiting blocks are embedded, and the second embedding segments of each of the limiting blocks are embedded with the second embedding segments of the adjacent limiting blocks. A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 14, wherein the ring-shaped pick-up member is provided with a circular opening and the ring wall faces The opening. A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 7, wherein the driving member has a brake pivot hole and two brake positioning holes, the brake pivot hole The pivot is arranged on the driving assembly, so that the driving member can pivot around the brake pivot hole. A pick-up device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 4, wherein each of the convex arc segments has a first pivot groove and each of the limit blocks A second pivoting slot is provided on the top, one end of each pivoting member is pivotally disposed in the corresponding first pivoting slot, and the other end of each pivoting member is pivotally disposed in the corresponding second pivoting slot Inside. A picking device for picking up tubular knitwear on a circular knitting machine and transferring it to another processing position as described in claim 3, wherein the number of convex arc segments is six.

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