A fabric picking-up and transferring device for a circular knitting machine

Abstract

The present invention provides a fabric picking and transferring device for a circular knitting machine, comprising: a transfer needle assembly, wherein the transfer needle assembly comprises: a transfer disk (14), a transfer needle track (24) and an upper stroke plate (25), wherein the upper stroke plate (25) can move back and forth, driving the transfer needle track (24) to move back and forth, thereby causing the transfer needle to move back and forth in the transfer disk (14); a needle guard assembly, wherein the needle guard assembly comprises: a needle guard disk (6), a needle guard track (23) and a lower stroke plate (28), wherein the lower stroke plate (28) can move back and forth, driving the needle guard track (23) to move back and forth, thereby causing the needle guard (4c) to move back and forth in the needle guard disk (6). The device of the present invention realizes the process of fabric transfer, improves efficiency and ensures high efficiency of transfer.

Description

Technical Field

[0001] The present invention relates to a fabric transfer technology, and more particularly to a fabric picking-up and transferring device for a circular knitting machine. Background Art

[0002] The current circular knitting machine has a complex structure and cannot realize the fully automatic process of fabric weaving, picking up, transferring, seam docking, sewing, and fabric turning device. It requires manual intervention, which greatly reduces the weaving efficiency. Summary of the invention

[0003] In view of the problems in the background technology, the present invention proposes a picking and transferring device for a circular knitting machine. The device is used to pick up the fabric on the needle hook of the knitting needle by the cooperation of the transfer needle and the needle guard after the production of the circular knitting machine is completed. During the picking process, the needle guard is moved up and down by the cylinder. When the picking is completed, the motor drives the screw rod to move up and down to a safe height, and at the same time, after the sock tube rises to a certain height, the motor below drives the worm gear in the worm gear box to transfer horizontally to realize the transfer of the fabric.

[0004] The picking and transferring device for a circular knitting machine of the present invention comprises: a transfer needle assembly, wherein the transfer needle assembly comprises: a transfer disk, a transfer needle track and an upper stroke piece, wherein the upper stroke piece can move back and forth, driving the transfer needle track to move back and forth, thereby causing the transfer needle to move back and forth on the transfer disk; a needle guard plate assembly, wherein the needle guard plate assembly comprises: a needle guard disk, a needle guard plate track and a lower stroke piece, wherein the lower stroke piece can move back and forth, driving the needle guard plate track to move back and forth, thereby causing the needle guard plate to move back and forth on the needle guard disk.

[0005] Optionally, the upper stroke plate is driven to move back and forth by an upper cylinder, and the lower stroke plate is driven to move back and forth by a lower cylinder.

[0006] Optionally, the lower side of the transfer needle track has a groove for accommodating the transfer needle protrusion of the transfer needle, so that the movement of the transfer needle track drives the movement of the transfer needle; the upper side of the needle guard track has a groove for accommodating the needle guard protrusion of the needle guard, so that the movement of the needle guard track drives the movement of the needle guard.

[0007] Optionally, the transfer needle assembly also includes: an upper fixed guide plate and a limiting ring, the upper fixed guide plate is placed under the upper travel piece, the limiting ring is below the upper fixed guide plate, and the transfer needle track is sleeved on the limiting ring; the needle guard plate assembly also includes: a lower fixed guide plate, the lower fixed guide plate is located above the lower travel piece and below the needle guard plate track.

[0008] Optionally, the transfer needle assembly further comprises: a limiting ring, the limiting ring is located below the upper fixed guide rail plate, and the transfer needle track is sleeved on the limiting ring.

[0009] Optionally, the transfer needle track, the upper fixed guide plate and the upper travel plate are connected together by an upper axial screw and an upper lower pressure plate;

[0010] The needle guard track, the lower fixed guide plate and the lower travel plate are connected together through the lower axial screw and the lower lower pressure plate.

[0011] Optionally, the upper stroke plate has an arc-shaped stroke plate groove extending outward along the circumferential direction, the upper fixed guide plate has a fixed guide plate groove, the upper lower pressure plate has a hole, the upper axial screw passes through the hole of the upper lower pressure plate, the stroke plate groove and the fixed guide plate groove, and connects the upper stroke plate and the transfer needle track together; the lower stroke plate has an arc-shaped stroke plate groove extending outward along the circumferential direction, the lower fixed guide plate has a fixed guide plate groove, the lower lower pressure plate has a hole, the lower axial screw passes through the hole of the lower lower pressure plate, the stroke plate groove and the fixed guide plate groove, and connects the lower stroke plate and the needle guard plate track together.

[0012] Optionally, two adjacent travel plate slides of the upper travel plate are connected by an upper lower pressure plate, and the upper lower pressure plate has two holes, each of which is equipped with an upper axial screw; two adjacent travel plate slides of the lower travel plate are connected by a lower lower pressure plate, and the lower lower pressure plate has two holes, each of which is equipped with a lower axial screw.

[0013] Optionally, the transfer needle assembly and the needle guard assembly are installed on the transfer base, with the transfer needle assembly on the top and the needle guard assembly on the bottom.

[0014] Optionally, the needle guard assembly is installed on a movable large gasket, and the movable large gasket is installed on the lower lifting seat through a spacer and a prismatic plate. A separation cylinder is installed on the movable large gasket to achieve the upper and lower separation of the transfer needle assembly and the needle guard assembly.

[0015] The beneficial effects of the present invention are: simplifying the process of fabric transfer, improving efficiency and ensuring high efficiency of transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the present invention more easily understood, the present invention will be described in more detail by referring to the specific embodiments shown in the accompanying drawings. These drawings only depict typical embodiments of the present invention and should not be considered as limiting the scope of protection of the present invention.

[0017] Figure 1 A perspective view of one embodiment of a transfer needle used in the method of the present invention is shown.

[0018] Figure 2 A perspective view of another embodiment of a transfer needle used in the method of the present invention is shown.

[0019] Figure 3 A schematic diagram showing the transfer needle used in the method of the present invention when in use.

[0020] Figure 4 A perspective view of another embodiment of a transfer needle used in the method of the present invention is shown.

[0021] Figure 5 A perspective view showing one embodiment of a needle guard used in the method of the present invention.

[0022] Figure 6 A perspective view of one embodiment of a slotted tooth used in the method of the present invention is shown.

[0023] Figure 7 A schematic diagram showing an angle of the adapter into which the slotted teeth are mounted.

[0024] Figure 8 A schematic diagram showing another angle of the tooth adapter for slotted tooth mounting.

[0025] Fig. 9 A perspective view from another angle showing the slotted teeth used in the method of the present invention.

[0026] Fig.10 A partial structural schematic diagram of the slotted teeth used in the method of the present invention is shown.

[0027] Fig.11 A partial structural schematic diagram of the slotted teeth used in the method of the present invention is shown.

[0028] Fig.12 A diagram showing the positional relationship between the suture teeth, transfer needle and needle guard.

[0029] Figure 13-Figure 29 A schematic diagram showing the working process of the fabric loop picking and transferring of the present invention.

[0030] Fig.30 It is a structural explosion diagram of the fabric coil picking and transferring device of the present invention.

[0031] Figure 31-Figure 32 for Fig.30 Stereoscopic view of the transfer needle track in .

[0032] Reference numerals

[0033] Sock needle 1, sock turning tube 2, sock support piece 201, sinker piece 201; fabric 3; transfer needle 4a, transfer needle 4b, transfer needle 4h, needle guard piece 4c, transfer needle body 41, transfer needle protrusion 411, transfer part 42, first bifurcated piece 421, second bifurcated piece 422, transfer needle groove 43, needle guard piece body 45, needle guard piece protrusion 451, needle guard piece groove 452, needle guard piece clamping part 46, first protrusion 461, second protrusion 462, depression 463, needle guard piece beveled part 47; seam teeth 6a, seam teeth 6b, slender body 61, needle-shaped part 611, needle-shaped part groove 6111, support part 612, suture groove 613, clamping part 62, clamping protrusion 621, upturned part 622, fixing groove 623, pressing plate 6c, tooth seat 6d, tooth seat 6e;

[0034] Lower fixed guide plate 5, needle guard disk 6, prismatic plate 7, movable large gasket 8, spacer sleeve 9, separation cylinder 10, fixed plate 11, transfer ring 12, lower lifting seat 13, transfer disk 14, limit ring 15, upper fixed guide plate 16, bridge plate 17, turbine box 18, lower motor 19, transfer base 20, screw 21, upper motor 22, needle guard plate track 23, transfer needle track 24, upper stroke plate 25, upper cylinder 26, lower cylinder 27, lower stroke plate 28, upper axial screw 29, upper lower pressure plate 30, lower axial screw 32, lower lower pressure plate 31. DETAILED DESCRIPTION

[0035] The following describes the embodiments of the present invention with reference to the accompanying drawings, wherein the same components are denoted by the same reference numerals. In the absence of conflict, the following embodiments and the technical features in the embodiments may be combined with each other.

[0036] In the method for transferring fabric coils of the present invention, three components are used, such as Figure 1-Figure 4 The transfer needle shown, such as Figure 5 The needle guard shown, Figure 6-11 The seam teeth shown.

[0037] Figure 1 The stereoscopic view of the transfer needle 4a of the present invention is shown, and the transfer needle has a transfer needle body 41, and a transfer portion 42 is provided at the head of the transfer needle body 41 (the end in contact with the fabric coil). The transfer needle body 41 is in the shape of an elongated thin sheet, and the transfer portion 42 is curved and deviates from the axis of the transfer needle body 41. Preferably, the transfer portion 42 is arc-shaped, gradually becoming thinner from the end of the transfer needle body 41, and the end is pointed. The tail of the transfer needle body 41 (the end away from the fabric coil) has a transfer needle protrusion 411, and the transfer needle protrusion 411 is engaged with the transfer disk of the fabric transfer device. By pushing and pulling the transfer needle protrusion 411, the transfer needle can be moved radially inward and outward, and can also be moved up and down to transfer the fabric coil.

[0038] Figure 2 The stereogram of the transfer needle 4b of the present invention is shown. The difference from the transfer needle 4a is that its shape is symmetrical with the transfer needle 4a. When in use, a pair of transfer needles 4a and 4b are required to be used together. Specifically, the transfer needles 4a and 4b are attached together. The transfer needle body 41 is made into a thin sheet, which is also to reduce the volume when the two are attached together, which is more environmentally friendly.

[0039] Figure 3 The state diagram of the transfer needles 4a and 4b when in use is shown. The transfer needle bodies 41 of the transfer needles 4a and 4b are fitted together, and the transfer parts 42 of the transfer needles 4a and 4b form a groove, the transfer needle groove 43, which is used to accommodate the seam teeth of the fabric sewing device. The function and general structure of the seam teeth are well known to those skilled in the art and will not be described here.

[0040] Figure 4 Another embodiment of the transfer needle of the present invention is shown. Different from the first embodiment, the transfer needle body 41 has a certain thickness, so that a groove, namely the transfer needle groove 43, can be opened at the head of the transfer needle body 41. The transfer needle groove 43 is also used to accommodate the seam teeth. Preferably, the transfer needle groove 43 is asymmetrical and has a notch at the end of the groove, so that the needle head of the hosiery needle 1 can slide into the transfer needle groove 43 more smoothly (see Figure 6 The tail of the transfer needle body 41 (the end away from the fabric coil) has a transfer needle protrusion 411, which is engaged with the transfer disk of the fabric transfer device. Pushing and pulling the transfer needle protrusion 411 can move the transfer needle radially inward and outward, and can also move up and down to transfer the fabric coil.

[0041] Figure 5 The structure of the needle guard 4c is shown. The needle guard 4c is used in conjunction with the transfer needles 4a and 4b. The needle guard 4c has a needle guard body 45, and a needle guard clamping portion 46 extends downward from the front end of the needle guard body 45 (the end of the coil that contacts the fabric). The clamping portion 46 has a first protrusion 461 and a second protrusion 462, and a recess 463 is formed therebetween. A needle guard bevel portion 47 is formed at the junction between the needle guard body 45 and the needle guard clamping portion 46. The needle guard clamping portion (46) extends vertically downward from the needle guard bevel portion (47).

[0042] The lower side of the rear end (the end away from the coil of the fabric) of the needle guard body 45 has a needle guard protrusion 451. The needle guard protrusion 451 is engaged with the transfer disk of the fabric transfer device, and pushing and pulling the needle guard protrusion 451 can move the transfer needle radially inward and outward, and can also move up and down to transfer the fabric coil.

[0043] The needle guard body 45 downside has a plurality of needle guard grooves 452 to combine with the transfer disk of the fabric transfer device. During use, the suturing needle 4a, 4b inserts between the two needle guards 4c, in the gap formed by the needle guard clamping portion 46 of the two needle guards.

[0044] like Figure 6 As shown, the slot tooth 6a has a slender body 61 and a clamping portion 62, the clamping portion 62 extends from the upper end of the slender body 61, and the two are combined to form an approximate 7-shaped shape. The slender body 61 includes a needle-shaped portion 611 at the lower end and a supporting portion 612 at the upper end.

[0045] Figure 7 A schematic diagram showing the slotted tooth 6a being mounted on the tooth holder 6e is shown. Figure 8 The schematic diagram shows the slotted tooth 6a installed on the tooth seat 6d. The tooth seats 6e and 6d form a complete circular tooth seat. Figure 3 The half tooth holder 6d in the figure can be turned down 180 degrees so that the two semicircular tooth holders are aligned. The overall 7-shaped slot tooth 6a is installed on the tooth holder 6e of the fabric transfer device. Specifically, it is hung on the groove of the tooth holder 6e through the clamping portion 62, and the slender body 61 is installed in the groove of the tooth holder 6e, wherein the support portion 612 is completely embedded in the groove of the tooth holder 6e, and only the needle-shaped portion 611 is exposed. Similarly, the slot tooth 6b (described below) is installed on the tooth holder 6d of the fabric transfer device.

[0046] To make the seam transfer teeth 6a and the seam teeth 6b fit more closely on the tooth seat 6e, the further detailed structure of the seam teeth 6a ensures the technical effect. Figure 1 and Figure 4 to describe.

[0047] like Fig. 9 As shown, the height H of the support portion 612 matches the height of the tooth seat 6e, so that after installation, the support portion 612 does not expose the tooth seat 6e, and only the needle-shaped portion 611 is exposed outside the tooth seat 6e. The width W of the support portion 612 matches the radial depth of the groove of the tooth seat 6e, so that after installation, the outer surface of the support portion 612 is flush with the radial outer surface of the tooth seat 6e, neither sunken nor convex. The effect after installation is shown in FIG. Figure 7 .

[0048] The lower side of the clamping part 62 has a clamping protrusion 621, and a groove is formed between the clamping protrusion 621 and the supporting part 612, so that the slit tooth 6a can be tightly hung on the groove of the tooth seat 6e. The upper surface of the clamping part 62 has a fixing groove 623 to match the tooth seat 6e, so that the slit tooth 6a can be tightly connected to the groove of the tooth seat 6e. The end of the clamping part 62 has an upturned part 622 for clamping with the tooth seat 6e, so that the two are in closer contact.

[0049] Fig.10 The structure of the needle portion 611 is shown. The outer side of the needle portion 611 (the side facing radially outward after being installed on the tooth seat 6e) has a needle portion groove 6111, which is used for the needle portion 611 of the slit tooth on the lower tooth seat to overlap the groove 6111 of the needle portion 611 of the slit tooth on the upper tooth seat after the tooth seat is turned 180 degrees and aligned, so that the subsequent coil transfer is smoother.

[0050] Fig.11 The structure of a seam tooth 6b of another embodiment is shown, in which the outer side of the slender body 61 of the seam tooth 6b (the side facing radially outward after being installed on the tooth seat 6e) has a sewing groove 613, and the sewing groove 613 is used to accommodate the sewing needle of the toe sewing machine. The two sewing needles sew alternately to sew the toes of the socks together.

[0051] like Fig.12 As shown, when in use, the positional relationship between the seam teeth 6a, the transfer needle 4a, the transfer needle 4b and the two needle guards 4c is as follows: the seam teeth 6a are inserted into the transfer needle groove 43 formed by the transfer needle 4a and the transfer needle 4b together, and the transfer needle 4a and the transfer needle 4b are inserted into the gap between the two needle guards 4c.

[0052] Refer to the following Figure 13-Figure 29 The schematic diagram for describing the working process of the transfer needle of the present invention is shown below. The present invention is described below by taking socks as an example, but the present invention can also be applied to other fabrics.

[0053] Figure 13-Figure 16 A schematic diagram showing step S1 of the method of the present invention is shown: using a needle guard to press down a loop of fabric on a knitting needle of the fabric by a certain distance, wherein the knitting needle passes through a gap formed by two adjacent needle guards. Fig.13 As shown, when the hosiery machine has knitted the last circle, the fabric 3 is in the hosiery turning tube 2 of the hosiery machine, and the last circle of the fabric 3 is under the needle tongue of the hosiery needle 1. The needle guard 4c is moved radially inward to be located above the hosiery needle 1, so that the hosiery needle 1 is located below the gap formed by the two needle guards 4c used in pairs.

[0054] like Fig.14 As shown, the sock turning tube 2 moves upward, and at the same time, the sock knitting needle 1 also moves upward, and the fabric 3 leaves the sinker 201 and approaches the needle guard 4c. The moving distance is such that the sock knitting needle 1 is located below the two needle guards 4c, and the transfer needles 4a and 4b are located above the two needle guards 4.

[0055] like Fig.15As shown, the needle guard 4c is moved radially inward and the transfer needles 4a and 4b are moved radially outward, so that the needle guard 4c is above the coil, and when the needle guard 4c moves downward, the coil on the hosiery needle 1 can be pressed under the needle tongue. At the same time, the transfer needles 4a and 4b above the needle guard 4c are moved radially outward so as not to affect the up and down stroke of the transfer needle 1.

[0056] like Fig.16 As shown, the needle guard 4c and the transfer needles 4a and 4b are moved downward together, so that the hosiery needle 1 passes through the gap formed between the two needle guards 4c. The needle guard 4c is used to press the coil of the fabric 3 downward for a distance.

[0057] Figure 17-Figure 19 A schematic diagram of step S2 of the method of the present invention is shown: moving the needle guard to the loop of the fabric so that the loop is stuck in the depression of the needle guard.

[0058] exist Fig.17 In the process, the needle guard 4c is moved radially outwards to separate from the hosiery needle 1 so as not to affect the up and down stroke of the transfer needle. The gap between the transfer needles 4a and 4b and the gap formed between the two needle guards 4c can be aligned up and down.

[0059] exist Fig.18 In the process, the needle guard 4c and the transfer needles 4a and 4b are moved downward together so that the recess 463 of the needle guard 4c is aligned with the coil.

[0060] exist Fig.19 In the process, the needle guard 4c is moved radially inward so that the hosiery needle 1 is located in the gap formed by the two needle guards 4c, and the coil is located in the recess 463 of the needle guard 4c.

[0061] Figure 20-22 The schematic diagram of step S3 of the method of the present invention is shown: the needle guard is moved upward, driving the coil to move upward, and the coil drives the needle tongue of the hosiery needle to turn up until the needle tongue of the hosiery needle abuts against the lower edge of the transfer needle.

[0062] exist Fig. 20 In the process, the needle guard 4c and the transfer needles 4a and 4b are moved upward together, the coil of the fabric 3 is moved upward by the needle guard 4c, and finally the needle tongue of the hosiery needle 1 is also lifted by the needle guard 4c, and finally rests against the lower edge of the transfer needles 4a and 4b.

[0063] exist Fig.21 In the process, the needle guard 4c is moved radially outward and can be moved to the initial position of the needle guard 4c so as not to affect the up and down stroke of the transfer needle 1.

[0064] exist Fig. 22 In the process, the needle guard 4c, the transfer needles 4a and 4b are moved upward together, and the needle tongue of the hosiery needle is tilted.

[0065] Fig.23 A schematic diagram showing step S4 of the method of the present invention: moving the transfer needle so that the needle head of the hosiery needle is located in the transfer groove of the transfer needle.

[0066] exist Fig.23 In the process, the transfer needles 4a and 4b are moved radially inward together so that the needle head of the hosiery needle 1 is placed in the transfer needle groove 43 formed by the transfer needles 4a and 4b.

[0067] Figure 24-26 Schematic diagram showing step S5 of the method of the present invention: moving the needle guard to below the coil, driving the coil upward, so that the needle tongue closes, and the coil is transferred to the transfer needle

[0068] exist Fig.24 In the process, the needle guard 4c is moved downward to below the loop position of the fabric 3.

[0069] exist Fig.25 In the process, the needle guard 4c is moved radially inward so that the hosiery needle is located in the gap formed by the two needle guards 4c. Preferably, the upper edge of the needle guard 4c abuts against the coil of the fabric 3.

[0070] exist Fig.26 In the process, the needle guard 4c is moved upward, driving the coil of the fabric 3 upward, driving the needle tongue of the hosiery needle 1 to close upward, so that the opening of the hosiery needle 1 is closed. The needle guard 4c is continued to be moved so that the coil is transferred to the transfer needles 4a and 4b.

[0071] exist Fig. 27 In the process, the needle guard 4c and the transfer needles 4a and 4b are moved upward together and separated from the hosiery needle 1. At this time, the coils of the fabric 3 are sleeved on the transfer needles 4a and 4b, and are supported by the needle guard 4c underneath, so that they can be firmly sleeved on the transfer needles 4a and 4b, thereby facilitating subsequent operations, such as transferring and turning the fabric.

[0072] exist Fig.28 In the process, the hosiery needle 1 moves downward.

[0073] exist Fig.29 In the process, the hosiery needle and sinker 201 are removed and subsequent operations are performed.

[0074] Transfer device

[0075] Fig.30 The schematic diagram of the structure of the device of the present invention is shown. The device of the present invention can achieve Figure 13-29 Transfer method shown.

[0076] The device of the present invention comprises a transfer needle assembly and a needle guard assembly. The transfer needle assembly comprises: a transfer ring 12, a transfer disk 14, a limit ring 15, a transfer needle track 24, an upper fixed guide plate 16, an upper travel plate 25, and an upper lower pressing plate 30. The needle guard assembly comprises: a fixed plate 11, a movable large gasket ring 8, a needle guard track 23, a lower travel plate 5, a lower expansion plate 28, and a lower pressing plate 32.

[0077] The transfer needle assembly is described in detail below.

[0078] The transfer ring 12 is installed on the outer side of the lower lifting seat 13 through the bridge plate 17. The following components are placed inside the transfer ring 12: a transfer plate 14, a limit ring 15, an upper fixed guide plate 16 and an upper travel piece 25 which are stacked and installed together from bottom to top.

[0079] The upper cylinder 26 is driven by the upper motor 22, and the end of the upper cylinder 26 is connected to the upper stroke plate 25. When the upper motor 22 drives the upper cylinder 26 to move, it can pull the upper stroke plate 25 to move back and forth.

[0080] The upper travel plate 25 has a travel plate slot extending in a circumferential direction, which is used to accommodate the upper axial screw 29. The upper fixed guide plate 16 has a fixed guide plate slot extending in a radial direction, which has the same number of fixed guide plate slots and travel plate slots, and the positions overlap, that is, the fixed guide plate slots are exposed in the travel plate slots.

[0081] Furthermore, two adjacent travel plate chutes of the upper travel plate 25 are connected by an upper lower pressing plate 30, and the upper lower pressing plate 30 has two holes, each of which is provided with an upper axial screw 29, and the upper axial screw 29 passes through the travel plate chutes and the fixed guide plate chutes. Furthermore, the upper axial screw 29 also passes through the hole on the transfer needle track 24 (see Figure 31-Figure 32 ). Thus, the upper travel piece 25, the upper fixed guide plate 16, and the transfer needle track 24 are fixed together. In this connection mode, the upper fixed guide plate 16 is fixed, the upper travel piece 25 is movable, and the transfer needle track 24 is movable. Due to the connection effect of the upper axial screw 29, the back and forth movement of the upper travel piece 25 will drive the back and forth movement of the transfer needle track 24.

[0082] Below the upper fixed guide plate 16 are the limit ring 15 and the transfer needle track 24. The limit ring 15 has a small inner diameter, and the transfer needle track 24 has a large inner diameter. The transfer needle track 24 is sleeved on the limit ring 15. The limit ring 15 is fixed, and the transfer needle track 24 is movable. A part of the structure of the transfer needle track 24 is as shown in FIG. Figure 31-Figure 32 shown. Figure 31-32The structures in the figure are combined to form the transfer needle track 24. In the present invention, the transfer needle track 24 is formed by connecting 5 pieces. The transfer needle track 24 has a groove below, which is used to accommodate the transfer needle protrusion 411. When the transfer needle track 24 moves in and out, it drives the transfer needles 4a and 4b to move in and out. The needle guard track 23 is also a similar structure. The needle guard track 23 has a groove on it to accommodate the needle guard protrusion 451. When the needle guard track 23 moves in and out, the needle guard 45 moves in and out.

[0083] Below the limiting ring 15 is a transfer disk 14 , on which grooves are provided for accommodating the transfer needles 4 a and 4 b .

[0084] The radial movement of the transfer needle is a set of movable running tracks assembled by the transfer needle track 24, the upper fixed guide plate 16, the upper stroke plate 25, the upper lower pressure plate 30, the upper axial screw 29, and the upper cylinder 26.

[0085] The operation mode is as follows: the upper motor 22 drives the upper cylinder 26, and the upper cylinder 26 moves back and forth, controlling the upper stroke plate 25 to move back and forth. Because of the connection between the upper axial screw 29 and the upper lower pressing plate 30, the transfer needle track 24 moves back and forth, so that the transfer needles 4a and 4b move back and forth in the transfer disk 14 and the transfer needle track 24. In addition, due to the shape of the stroke plate chute of the upper stroke plate 25, the transfer needle track 24 is enlarged and reduced in the radial direction, that is, the transfer needles 4a and 4b are enlarged and reduced. The shape of the stroke plate chute of the upper stroke plate 25 and the length in the radial direction determine the enlarged and reduced stroke of the transfer needles 4a and 4b in the radial direction.

[0086] The needle guard assembly is described in detail below.

[0087] The lower motor 19 drives the worm gear in the turbine box 18, so that the worm gear moves horizontally to the left and right. The worm gear is connected to the lower cylinder 27, and the horizontal movement of the worm gear drives the lower cylinder 27 to move back and forth. The lower cylinder 27 is connected to the lower stroke plate 28, so the lower stroke plate 28 can also swing back and forth, and the movement mode is similar to that of the upper stroke plate 25.

[0088] The annular space of the movable large gasket ring 8 contains: the lower stroke plate 28, the lower fixed guide plate 5, the needle guard track 23, and the needle guard plate 6 stacked in sequence from bottom to top. The movable large gasket ring 8 is installed on the lower lifting seat 13 through the spacer 9 and the prism plate 7. In addition, a separation cylinder 10 is installed on the movable large gasket ring 8, so that the movable large gasket ring 8 is separated from the transfer ring 12, that is, the upper and lower separation of the transfer needle assembly and the needle guard assembly is realized.

[0089] The lower stroke plate 28 has a stroke plate sliding groove which is approximately strip-shaped and extends in the circumferential direction.

[0090] The lower fixed guide plate 5 has a fixed guide plate slot that is approximately strip-shaped and extends in the radial direction. The number of the fixed guide plate slots and the travel plate slots are the same, and their positions overlap up and down. More specifically, the fixed guide plate slots overlap with a portion of the travel plate slots.

[0091] Above the lower fixed guide rail plate 5 is a needle guard track 23 , and the structure of the needle guard track 23 is the same as that of the transfer needle track 24 .

[0092] Above the needle guard track 23 is the needle guard disk 6, which is provided with a groove for accommodating the needle guard 4c.

[0093] The lower travel plate 28 has a travel plate slot extending in a circumferential direction, which is used to accommodate the lower axial screw 32. The lower fixed guide plate 5 has a fixed guide plate slot extending in a radial direction, which has the same number of fixed guide plate slots and travel plate slots, and the positions overlap, that is, the fixed guide plate slots are exposed in the travel plate slots.

[0094] Further, the two adjacent stroke plate slots of the lower stroke plate 2 are connected by a lower pressing plate 31, and the lower pressing plate 31 has two holes, each of which is equipped with a lower axial screw 32, and the lower axial screw 32 passes through the stroke plate slot and the fixed guide plate slot. Further, the lower axial screw 32 also passes through the hole on the needle guard track 23 (see Figure 31-Figure 32 ). Thus, the lower stroke piece 25, the lower fixed guide plate 5, and the needle guard track 23 are fixed together. In this connection mode, the lower fixed guide plate 5 is fixed, the lower stroke piece 2 is movable, and the needle guard track 23 is movable. Due to the connection of the lower axial screw 32, the back-and-forth movement of the lower stroke piece 28 will drive the back-and-forth movement of the needle guard track 23.

[0095] The radial movement of the needle guard 4c is a set of movable running tracks assembled by the needle guard track 23, the lower fixed guide plate 5, the lower stroke plate 28, the lower axial screw 32, the lower pressing plate 31, and the lower cylinder 27.

[0096] The operation mode is as follows: the lower motor 19 drives the lower cylinder 27 to control the lower stroke plate 28 to move back and forth. Due to the connection between the lower axial screw 32 and the lower lower pressing plate 31, the needle guard track 23 moves back and forth, so that the needle guard 4c moves back and forth in the needle guard plate 6 and the needle guard track 23. In addition, due to the shape of the stroke plate slideway of the lower stroke plate 28, the needle guard track 23 is enlarged and reduced in the radial direction, that is, the enlargement and reduction of the needle guard 4c. The length of the shape of the stroke plate slideway of the lower stroke plate 28 in the radial direction determines the enlargement and reduction of the needle guard 4c in the radial direction.

[0097] In addition, two motors are used in the device of the present invention, and the upper motor 22 is connected to the turbine box 18 driven by the lower motor 19 through the screw rod 21. The lower lifting seat 13 is connected to the screw rod 21. The upper motor 22 drives the screw rod 21 to achieve the rise and fall of the lower lifting seat 13. The transfer needle assembly and the needle guard assembly are installed on the transfer base 20, with the transfer needle assembly on the upper side and the needle guard assembly on the lower side.

[0098] The embodiments described above are only preferred specific implementations of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A fabric pick-up and transfer device for a circular knitting machine, It is characterized in that include: A transfer needle assembly, the transfer needle assembly comprising: a transfer disk (14), the transfer disk (14) being provided with a groove for accommodating a pair of transfer needles (4a, 4b) fitted together; a transfer needle track (24); and an upper stroke plate (25); wherein the upper stroke plate (25) is capable of moving back and forth, driving the transfer needle track (24) to move back and forth, thereby causing the pair of transfer needles (4a, 4b) to move back and forth in the transfer disk (14); wherein each of the transfer needles (4a, 4b) has a transfer needle body (41), and a transfer portion (42) is provided at the head of the transfer needle body (41); the transfer portion (42) is curved and deviates from the axis of the transfer needle body (41), and the transfer portion (42) is arc-shaped and gradually becomes thinner from the end of the transfer needle body (41). The tail of the transfer needle body (41) is provided with a transfer needle protrusion (411), which is engaged with the transfer disk (14). By pushing and pulling the transfer needle protrusion (411), the transfer needle can be moved radially inward, outward, and up and down to transfer the fabric coils, wherein the head of the transfer needle body (41) is provided with a transfer needle groove (43) for accommodating the seam teeth (6a); A needle guard assembly, the needle guard assembly comprising: a needle guard disc (6), the needle guard disc (6) being provided with a groove for accommodating the needle guard (4c); a needle guard track (23); and a lower stroke disc (28); wherein the lower stroke disc (28) is capable of moving back and forth, driving the needle guard track (23) to move back and forth, so that the needle guard (4c) moves back and forth in the needle guard disc (6) and the needle guard track (23); Among them, the needle guard (4c) has a needle guard body (45), and a needle guard clamping portion (46) extends downward from the front end of the needle guard body (45), and the clamping portion (46) has a first protrusion (461) and a second protrusion (462), and a recess (463) is formed therebetween. A needle guard bevel portion 47 is formed at the junction between the needle guard body (45) and the needle guard clamping portion (46), and the needle guard clamping portion (46) extends vertically downward from the needle guard bevel portion (47).

2. The fabric picking-up and transferring device for a circular knitting machine according to claim 1, It is characterized in that The upper stroke plate (25) is driven by the upper cylinder (26) to move back and forth. The lower stroke plate (28) is driven by the lower cylinder (19) to move back and forth.

3. The fabric picking-up and transferring device for a circular knitting machine according to claim 1, It is characterized in that The lower side of the transfer needle track (24) has a groove for accommodating the transfer needle protrusion (411) of the transfer needle, so that the movement of the transfer needle track (24) drives the movement of the transfer needle; The upper side of the needle guard track (23) is provided with a groove for accommodating the needle guard protrusion (451) of the needle guard, so that the movement of the needle guard track (23) drives the movement of the needle guard (4c).

4. The fabric picking-up and transferring device for a circular knitting machine according to claim 1, It is characterized in that The transfer needle assembly further comprises: an upper fixed guide plate (16) and a limiting ring (15), wherein the upper fixed guide plate (16) is placed under the upper travel plate (25), the limiting ring (15) is located below the upper fixed guide plate (16), and the transfer needle track (24) is sleeved on the limiting ring (15); The needle guard assembly also includes: a lower fixed guide rail plate (5), the lower fixed guide rail plate (5) is located above the lower travel plate (28) and below the needle guard track (23).

5. The fabric picking-up and transferring device for a circular knitting machine according to claim 1, It is characterized in that The transfer needle assembly further comprises: a limiting ring (15), the limiting ring (15) is located below the upper fixed guide rail plate (16), and the transfer needle track (24) is sleeved on the limiting ring (15).

6. The fabric picking-up and transferring device for a circular knitting machine according to claim 4, It is characterized in that The transfer needle track (24), the upper fixed guide plate (16) and the upper travel plate (25) are connected together through the upper axial screw (29) and the upper lower pressing plate (30); The needle guard track (23), the lower fixed guide plate (5) and the lower travel plate (28) are connected together through the lower axial screw (32) and the lower lower pressing plate (31).

7. The fabric picking-up and transferring device for a circular knitting machine according to claim 6, It is characterized in that The upper stroke plate (25) has an arc-shaped stroke plate slot extending outwardly in the circumferential direction, the upper fixed guide plate (16) has a fixed guide plate slot, the upper lower pressing plate (30) has a hole, and the upper axial screw (29) passes through the hole of the upper lower pressing plate (30), the stroke plate slot and the fixed guide plate slot to connect the upper stroke plate (25) and the transfer needle track (24) together; The lower stroke plate (28) has an arc-shaped stroke plate slot extending outward in the circumferential direction, the lower fixed guide plate (5) has a fixed guide plate slot, the lower lower pressing plate (31) has a hole, and the lower axial screw (32) passes through the hole of the lower lower pressing plate (31), the stroke plate slot and the fixed guide plate slot to connect the lower stroke plate (28) and the needle guard plate track (23) together.

8. The fabric picking-up and transferring device for a circular knitting machine according to claim 7, Features Two adjacent stroke plate slides of the upper stroke plate (25) are connected by an upper lower pressing plate (30), and the upper lower pressing plate (30) has two holes, each of which is equipped with an upper axial screw (29); Two adjacent stroke plate chute of the lower stroke plate (28) are connected by a lower pressing plate (31), and the lower pressing plate (31) has two holes, and a lower axial screw (32) is respectively installed therein.

9. The fabric picking-up and transferring device for a circular knitting machine according to claim 1, It is characterized in that The transfer needle assembly and the needle guard assembly are installed on the transfer base (20), with the transfer needle assembly on the top and the needle guard assembly on the bottom.

10. The fabric picking-up and transferring device for a circular knitting machine according to claim 9, It is characterized in that The needle guard assembly is mounted on a movable large gasket ring (8), which is mounted on a lower lifting seat (13) via a spacer sleeve (9) and a prismatic plate (7). A separation cylinder (10) is mounted on the movable large gasket ring (8) to achieve the upper and lower separation of the transfer needle assembly and the needle guard assembly.

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