Long tube fabric lifting device

Abstract

The present invention discloses a long-tube fabric lifting device, comprising a mounting platform, a screw drive assembly, a fabric pushing frame and a sliding mechanism. The mounting platform is provided with a screw drive assembly and a sliding mechanism, and the sliding mechanism is provided with a fabric pushing frame. The screw drive assembly is fixedly connected to the sliding mechanism and drives the sliding mechanism to drive the fabric pushing frame to reciprocate. Compared with the prior art, the tubular member can more conveniently suck the tubular fabric, which greatly reduces the difficulty of the tubular member sucking the tubular fabric, and makes the overall operation convenient and stable.

Description

[Technical field]

[0001] The invention relates to the technical field of circular knitting machines, in particular to the technical field of a long-tube fabric lifting device. [Background technology]

[0002] After the circular hosiery knitting machine has knitted the tubular fabric, it is often necessary to sew the tubular fabric. In the prior art, there is a device for picking up the tubular fabric woven by the circular hosiery knitting machine and transferring it to a sewing or crocheting station, where a sewing or crocheting head is provided, and the tubular fabric is sewed by the sewing or crocheting head. Usually, the picking device picks up the fabric from the circular hosiery knitting machine and optionally transfers it to the conveying device by respectively cooperating with the knitting coils on the knitting row at the end of the fabric, so that the knitting coils of the half row of the knitting row at the end of the fabric face the knitting coils of the other half row respectively before sewing or crocheting, so that the two coils of the two half rows facing each other of the knitting row are connected by the sewing or crocheting head, thereby playing the role of closing the end of the fabric.

[0003] In the process of automatically closing tubular knitted articles, the sewing or crocheting operation is usually performed on the fabric turned inside out, so that the sewing or crocheting chain loops are almost invisible on the front side of the fabric, that is, the side that is usually not visible when the fabric is worn, so that fabrics such as hosiery can achieve good results in terms of accuracy and aesthetics. The tubular fabric knitted by the circular knitting machine is usually facing outward, so when the tubular fabric is closed at the sewing or crocheting station, a turner is required to turn the tubular fabric inside out before undergoing the sewing or crocheting operation.

[0004] The existing turning device is basically a tubular structure. The turning device is located below the clamp or pick-up device that clamps the closed end of the bottom of the tubular fabric. The upper end of the tubular structure faces the suspended fabric. Then the inside of the tubular structure is connected to the suction device, so that the suspended fabric is sucked through its upper end. Then the tubular structure is raised to pass through the end of the tubular fabric to be closed with its upper end. During the passing process, the fabric is turned outward to the outer surface of the tubular structure, so that the inside is turned outward. However, when the tubular fabric is too long, the suction device in the tubular structure cannot complete the work of sucking the fabric out of the circular hosiery knitting machine. The applicant disclosed a tubular fabric sewing device and method in application No. 2017111557493. A pushing device is installed on the side of the turning device. A push handle is provided on the pushing device. The push handle is located on the outer side of the top of the tubular structure and rotates relative to the tubular structure. During the rotation of the push handle, the hanging fabric is pushed toward the tubular structure, so that the middle and lower parts of the fabric move to the mouth of the tubular structure, which is convenient for the tubular structure to suck the other end of the fabric into the tubular member. However, when the fabric is too long, one end of the fabric is on the clamp and the other end is still in the circular knitting machine. The tilted state of the fabric makes it impossible for the pusher to hook the fabric 100% during the rotation process, and the tubular structure cannot complete the fabric adsorption work. [Summary of the invention]

[0005] The purpose of the present invention is to solve the problems in the prior art and to propose a long-tube fabric lifting device, which can make the tubular member more convenient to suck the tubular fabric, greatly reducing the difficulty of the tubular member sucking the tubular fabric, making the overall operation convenient and stable.

[0006] To achieve the above-mentioned purpose, the present invention proposes a long-tube fabric lifting device, including a mounting platform, a screw drive assembly, a fabric pushing frame and a sliding mechanism, the mounting platform is provided with a screw drive assembly and a sliding mechanism, the sliding mechanism is provided with a fabric pushing frame, the screw drive assembly is fixedly connected to the sliding mechanism and drives the sliding mechanism to drive the fabric pushing frame to reciprocate.

[0007] Preferably, a mounting seat I and a mounting seat II are provided on the mounting platform, a screw drive assembly is provided on the mounting seat I and the mounting seat II, and a sliding mechanism is provided on the mounting seat II.

[0008] Preferably, the screw drive assembly includes a motor, a ball screw and a ball screw nut, and ball screws are provided on the mounting seat I and the mounting seat II. The motor is arranged on the mounting seat I and drives the ball screw to rotate, and the ball screw is provided with a ball screw nut that matches it.

[0009] Preferably, the sliding mechanism includes a plurality of linear shafts, nut connecting seats and supports, the linear shafts can be slidably arranged on the mounting seat II, the front end of the linear shafts is provided with a nut connecting seat, and the rear end of the linear shafts is provided with a support.

[0010] Preferably, a plurality of linear bearings are provided on the mounting seat II, and a linear shaft body matching with the linear bearing is provided inside the linear bearing.

[0011] Preferably, a fabric blocking portion is provided on the fabric pushing frame, and the fabric blocking portion comprises a first fabric blocking member and a second fabric blocking member respectively arranged at two ends of the fabric pushing frame.

[0012] Preferably, a first fabric blocking member and a second fabric blocking member with adjustable positions are respectively provided on both sides of the fabric pushing frame, one of the first fabric blocking member and the second fabric blocking member is arranged on the side close to the left end of the fabric pushing frame; the other is arranged on the side close to the right end of the fabric pushing frame.

[0013] Preferably, the fabric pushing rack is installed on a support of the sliding mechanism, and adjustment mounting frames are provided on both sides of the support. The first fabric blocking member and the second fabric blocking member are respectively installed in the adjustment mounting frames on both sides, and their positions can be adjusted along the length direction of the adjustment mounting frames.

[0014] Preferably, the adjustment mounting frame has an adjustment cavity, the bottom of the first fabric blocking member and the second fabric blocking member has a guide slider that can slide in the adjustment cavity, the guide slider is provided with a locking bolt, the bottom of the adjustment mounting frame has an adjustment groove for the locking bolt to extend into, the adjustment groove is connected with the adjustment cavity, and the first fabric blocking member and the second fabric blocking member are installed on the adjustment mounting frame by the locking bolt.

[0015] Preferably, the fabric pushing frame is connected to an auxiliary suction device, a suction cavity is provided in the fabric pushing frame, and a plurality of through holes communicating with the suction cavity are provided on the upper surface.

[0016] Beneficial effects of the present invention: The present invention provides a screw drive assembly and a sliding mechanism on the mounting platform, and a fabric pushing frame is provided on the sliding mechanism. The screw drive assembly is fixedly connected to the sliding mechanism and drives the sliding mechanism to drive the fabric pushing frame to rise. The fabric pushing frame pushes the long tube of tubular fabric out of the syringe. Compared with the prior art, the tubular part can more conveniently suck the tubular fabric, which greatly reduces the difficulty of the tubular part sucking the tubular fabric, and makes the overall operation convenient and stable.

[0017] The screw drive assembly has the characteristics of high precision and high efficiency, reducing the wear of the equipment during rotation.

[0018] The sliding mechanism improves the stability of movement. The linear axis is slidably connected to the mounting seat II through a linear bearing. It has the characteristics of low friction, reliable structure, strong load-bearing capacity, high precision in long-distance operation, and long service life.

[0019] The fabric stopper is used to stop the tubular fabric and prevent the tubular fabric from sliding off the fabric pusher frame, thereby improving reliability. The adjustable fabric stopper can adapt to the pushing of fabrics of different specifications.

[0020] The auxiliary suction device can generate a certain adsorption force on the fabric contacting the fabric push frame by using the through hole, so as to prevent the excessively long fabric from sliding toward one end in the circular knitting machine during the upward pushing process, which is conducive to pulling the long tube fabric out of the circular knitting machine.

[0021] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of embodiment 1 of the present invention;

[0023] Figure 2 is a schematic structural diagram of a fabric pushing frame in Embodiment 2 of the present invention;

[0024] Figure 3 is a schematic structural diagram of a fabric pushing frame in Embodiment 3 of the present invention;

[0025] Figure 4 yes Figure 3 A schematic diagram of the right side of the center push fabric rack;

[0026] Figure 5 yes Figure 3 A top view of the mid-push fabric rack;

[0027] Figure 6 is a schematic structural diagram of a fabric pushing frame in Embodiment 4 of the present invention;

[0028] Figure 7 yes Figure 6 Schematic diagram of the top view of the mid-push fabric rack.

[0029] In the figure: 1-mounting platform, 2-screw drive assembly, 3-fabric push frame, 4-sliding mechanism, 5-fabric stop part, 6-mounting seat I, 7-mounting seat II, 21-motor, 22-ball screw, 23-ball screw nut, 30-connector, 31-through hole, 41-linear shaft, 42-nut connecting seat, 43-support, 44-linear bearing, 430-adjusting cavity, 431-adjusting mounting frame, 432-adjusting groove, 50-locking bolt, 51-first fabric stop member, 52-second fabric stop member [Specific implementation method]

[0030] Example 1

[0031] See also Figure 1The present invention discloses a long-tube fabric lifting device, comprising an installation platform 1, a screw drive assembly 2, a fabric pushing frame 3 and a sliding mechanism 4, wherein the installation platform 1 is provided with a screw drive assembly 2 and a sliding mechanism 4, wherein the sliding mechanism 4 is provided with a fabric pushing frame 3, wherein the screw drive assembly 2 is fixedly connected with the sliding mechanism 4 and drives the sliding mechanism 4 to drive the fabric pushing frame 3 to reciprocate, wherein the installation platform 1 is provided with a mounting seat I6 and a mounting seat II7, wherein the mounting seat I6 and the mounting seat II7 are provided with a screw drive assembly 2, wherein the mounting seat II7 is provided with a sliding mechanism 4, wherein the screw drive assembly 2 comprises a motor 21, a ball screw 22 and a ball screw screw The nut 23, the mounting seat I6 and the mounting seat II7 are provided with a ball screw 22, the motor 21 is arranged on the mounting seat I6 and drives the ball screw 22 to rotate, the ball screw 22 is provided with a ball screw nut 23 matched therewith, the sliding mechanism 4 includes a plurality of linear shafts 41, a nut connecting seat 42 and a support 43, the linear shaft 41 can be slidably arranged on the mounting seat II7, the front end of the linear shaft 41 is provided with a nut connecting seat 42, the rear end of the linear shaft 41 is provided with a support 43, the mounting seat II7 is provided with a plurality of linear bearings 44, and the linear bearings 44 are provided with a linear shaft 41 matched therewith.

[0032] Furthermore, a fabric blocking portion 5 is provided on the fabric pushing frame 3, and the fabric blocking portion 5 includes a first fabric blocking member 51 and a second fabric blocking member 52 respectively provided at two ends of the fabric pushing frame 3. In this embodiment, the first fabric blocking member 51 and the second fabric blocking member 52 are both provided to tilt upward, forming an inwardly concave arc-shaped pushing surface on the fabric pushing frame 3. The first fabric blocking member 51 and the second fabric blocking member 52 are used to block the tubular fabric, prevent the tubular fabric from sliding off the fabric pushing frame 3, and improve reliability.

[0033] The working process of Example 1 is as follows: the motor 21 is started, the motor 21 drives the ball screw 22 to rotate, the ball screw 22 drives the ball screw nut 23 to move upward, the ball screw nut 23 drives the linear shaft 41 to move upward through the nut connecting seat 42, the linear shaft 41 drives the fabric pusher 3 to move upward through the support 43, the fabric pusher 3 pushes the long tube fabric between the picking device and the circular knitting machine to move upward, and pulls the long tube fabric out of the circular knitting machine.

[0034] Example 2

[0035] See also Figure 2On the basis of Embodiment 1, the fabric pusher 3 is connected to the auxiliary suction device. The fabric pusher 3 has a suction cavity inside, and a plurality of through holes 31 communicating with the suction cavity are provided on the upper surface. In this embodiment, the fabric pusher 3 is connected to the suction pipe of the auxiliary suction device through a connector 30. The connector 30 can be arranged on the side or the bottom of the fabric pusher 3. When the connector 30 is arranged at the bottom of the fabric pusher 3, a through hole is provided on the support 43 for the connector 30 to pass through. The auxiliary suction device can generate a certain adsorption force on the fabric contacting the fabric pusher 3 through the through hole 31, which is conducive to pulling the long tube fabric out of the circular knitting machine.

[0036] Working process of embodiment 2: start the motor 21, the motor 21 drives the ball screw 22 to rotate, the ball screw 22 drives the ball screw nut 23 to move upward, the ball screw nut 23 drives the linear shaft 41 to move upward through the nut connecting seat 42, the linear shaft 41 drives the fabric pusher 3 to move upward through the support 43, the fabric pusher 3 pushes the long tube fabric between the picking device and the circular knitting machine to move upward, and pulls the long tube fabric out of the circular knitting machine. Among them, when the fabric pusher 3 pushes the tubular fabric upward, the auxiliary suction device works, and the position of the through hole 31 can generate a certain adsorption force on the fabric contacting the fabric pusher 3, so as to prevent the excessively long fabric from sliding toward one end in the circular knitting machine during the upward push, which is conducive to pulling the long tube fabric out of the circular knitting machine. When one end of the long tube fabric is completely pulled out of the circular knitting machine, the auxiliary suction device stops working and the fabric pusher 3 is reset. At this time, the long tube fabric can be completely separated from the circular knitting machine, which is convenient for the pusher to hook the fabric.

[0037] Example 3

[0038] See also Figures 3 to 5 , the difference between this embodiment and embodiment 1 is that the structure of the fabric blocking part 5 is different. Specifically, in this embodiment, the two sides of the fabric pushing frame 3 are respectively provided with a first fabric blocking member 51 and a second fabric blocking member 52 with adjustable positions, one of the first fabric blocking member 51 and the second fabric blocking member 52 is arranged on a side close to the left end of the fabric pushing frame 3 and is inclined toward the upper left; the other is arranged on a side close to the right end of the fabric pushing frame 3 and is inclined toward the upper right, and the relative distance between the first fabric blocking member 51 and the second fabric blocking member 52 along the length direction of the fabric pushing frame 3 is adjustable, so as to adapt to the pushing of long tube fabrics of different specifications.

[0039] Furthermore, the fabric pushing frame 3 is installed on the support 43 of the sliding mechanism 4, and an adjustment mounting frame 431 is provided on both sides of the support 43. The first fabric blocking member 51 and the second fabric blocking member 52 are respectively installed in the adjustment mounting frames 431 on both sides, and the position can be adjusted along the length direction of the adjustment mounting frame 431. Specifically, the adjustment mounting frame 431 has an adjustment cavity 430, the bottom of the first fabric blocking member 51 and the second fabric blocking member 52 has a guide slider that can slide in the adjustment cavity 430, and the guide slider is provided with a locking bolt 50. The bottom of the adjustment mounting frame 431 has an adjustment groove 432 for the locking bolt 50 to extend into, and the adjustment groove 432 is connected to the adjustment cavity 430. The first fabric blocking member 51 and the second fabric blocking member 52 are installed on the adjustment mounting frame 431 by the locking bolt 50. When it is necessary to adjust the position of the first fabric blocking member 51 and the second fabric blocking member 52, it is only necessary to loosen the locking bolt 50. After adjusting to the right position, tighten the locking bolt 50 again, which can adapt to the pushing of long tube fabrics of different specifications.

[0040] Working process of Example 3: Before working, adjust the relative positions of the first fabric stopper 51 and the second fabric stopper 52 according to the actual requirements of the fabric specifications, first loosen the locking bolt 50, and after the first fabric stopper 51 and the second fabric stopper 52 are adjusted in place, tighten the locking bolt 50 again. Then start the motor 21, the motor 21 drives the ball screw 22 to rotate, the ball screw 22 drives the ball screw nut 23 to move upward, the ball screw nut 23 drives the linear shaft 41 to move upward through the nut connecting seat 42, the linear shaft 41 drives the fabric pusher 3 to move upward through the support 43, the fabric pusher 3 pushes the long tube fabric between the picking device and the circular knitting machine to move upward, and pulls the long tube fabric out of the circular knitting machine.

[0041] Example 4

[0042] See also Figure 6 and Figure 7 On the basis of Embodiment 3, the fabric pusher 3 is connected to the auxiliary suction device. The fabric pusher 3 has a suction cavity inside, and a plurality of through holes 31 communicating with the suction cavity are provided on the upper surface. In this embodiment, the fabric pusher 3 is connected to the suction pipe of the auxiliary suction device through a connector 30. The connector 30 can be arranged on the side or the bottom of the fabric pusher 3. When the connector 30 is arranged at the bottom of the fabric pusher 3, a through hole is provided on the support 43 for the connector 30 to pass through. The auxiliary suction device can generate a certain adsorption force on the fabric contacting the fabric pusher 3 through the through hole 31, which is conducive to pulling the long tube fabric out of the circular knitting machine.

[0043] Working process of Example 4: Before working, adjust the relative positions of the first fabric stopper 51 and the second fabric stopper 52 according to the actual requirements of the fabric specifications, first loosen the locking bolt 50, and after the first fabric stopper 51 and the second fabric stopper 52 are adjusted in place, tighten the locking bolt 50 again. Then start the motor 21, the motor 21 drives the ball screw 22 to rotate, the ball screw 22 drives the ball screw nut 23 to move upward, the ball screw nut 23 drives the linear shaft 41 to move upward through the nut connecting seat 42, the linear shaft 41 drives the fabric pusher 3 to move upward through the support 43, the fabric pusher 3 pushes the long tube fabric between the picking device and the circular knitting machine to move upward, and pulls the long tube fabric out of the circular knitting machine. When the fabric pusher 3 pushes the tubular fabric upward, the auxiliary suction device works, and the position of the through hole 31 can generate a certain adsorption force on the fabric contacting the fabric pusher 3, so as to prevent the excessively long fabric from sliding toward one end in the circular knitting machine during the upward pushing process, which is conducive to pulling the long tube fabric out of the circular knitting machine. When one end of the long tube fabric is completely pulled out of the circular knitting machine, the auxiliary suction device stops working and the fabric pusher 3 is reset. At this time, the long tube fabric can be completely separated from the circular knitting machine, which is convenient for the pusher to hook the fabric.

[0044] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A long tube fabric lifting device, characterized in that: The invention comprises a mounting platform (1), a screw drive assembly (2), a fabric pusher frame (3) and a sliding mechanism (4); the mounting platform (1) is provided with a screw drive assembly (2) and a sliding mechanism (4); the sliding mechanism (4) is provided with a fabric pusher frame (3); the screw drive assembly (2) is fixedly connected to the sliding mechanism (4) and drives the sliding mechanism (4) to drive the fabric pusher frame (3) to reciprocate; the mounting platform (1) is provided with a mounting seat I (6) and a mounting seat II (7); the mounting seat I (6) and the mounting seat II (7) are provided with a screw drive assembly (2); the mounting seat II (7) is provided with a sliding mechanism (4); the screw drive assembly (2) comprises a motor (21), a ball screw (22) and a ball screw nut (23); The mounting seat I (6) and the mounting seat II (7) are provided with a ball screw (22); the motor (21) is provided on the mounting seat I (6) and drives the ball screw (22) to rotate; the ball screw (22) is provided with a ball screw nut (23) matched therewith; the sliding mechanism (4) comprises a plurality of linear shafts (41), a nut connecting seat (42) and a support (43); the linear shaft (41) is slidably provided on the mounting seat II (7); the front end of the linear shaft (41) is provided with a nut connecting seat (42); the rear end of the linear shaft (41) is provided with a support (43); the mounting seat II (7) is provided with a plurality of linear bearings (44); the linear bearings (44) are provided with linear shafts (41) matched therewith.

2. A long fabric lifting device as claimed in claim 1, characterized in that: The fabric pushing frame (3) is provided with a fabric blocking portion (5), and the fabric blocking portion (5) comprises a first fabric blocking member (51) and a second fabric blocking member (52) respectively arranged at two ends of the fabric pushing frame (3).

3. A long fabric lifting device as claimed in claim 1, characterized in that: A first fabric blocking member (51) and a second fabric blocking member (52) with adjustable positions are respectively provided on both sides of the fabric pushing frame (3); one of the first fabric blocking member (51) and the second fabric blocking member (52) is arranged on a side close to the left end of the fabric pushing frame (3); and the other is arranged on a side close to the right end of the fabric pushing frame (3).

4. A long fabric lifting device as claimed in claim 3, characterized in that: The fabric pushing frame (3) is mounted on a support (43) of the sliding mechanism (4); adjustment mounting frames (431) are provided on both sides of the support (43); the first fabric blocking member (51) and the second fabric blocking member (52) are respectively mounted in the adjustment mounting frames (431) on both sides, and their positions can be adjusted along the length direction of the adjustment mounting frames (431).

5. A long fabric lifting device as claimed in claim 4, characterized in that: The adjusting installation frame (431) has an adjusting cavity (430) therein; the bottoms of the first fabric blocking member (51) and the second fabric blocking member (52) have guide sliders that can slide in the adjusting cavity (430); the guide sliders are provided with locking bolts (50); the bottom of the adjusting installation frame (431) has an adjusting groove (432) into which the locking bolt (50) can extend; the adjusting groove (432) is connected to the adjusting cavity (430); the first fabric blocking member (51) and the second fabric blocking member (52) are installed on the adjusting installation frame (431) via the locking bolts (50).

6. A long fabric lifting device according to any one of claims 1 to 5, characterized in that: The fabric pushing frame (3) is connected to the auxiliary suction device, and a suction cavity is provided in the fabric pushing frame (3), and a plurality of through holes (31) in communication with the suction cavity are provided on the upper surface.

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