Knocking-over bar spacing adjusting mechanism and warp knitting machine

Abstract

The utility model discloses a knocking-over bar spacing adjusting mechanism and a warp knitting machine, and belongs to the field of textile machinery. Comprising a first swing shaft, a second swing shaft, a first knocking-over bar, a second knocking-over bar, a first swing arm and a second swing arm, wherein the first swing shaft and the second swing shaft are fixedly mounted on the first knocking-over bar and the second knocking-over bar respectively and are distributed in a mirror symmetry manner; the first swing arm and the second swing arm are in transmission connection with the first swing shaft and the second swing shaft respectively and are distributed in a central symmetry manner; the connecting rod is connected with the first swing arm and the second swing arm, and the driving unit is used for driving the first swing arm to rotate. By means of the first swing arm and the second swing arm which are connected through the connecting rod and distributed in the central symmetry mode, the first swing shaft and the second swing shaft can move in the opposite directions by adjusting rotation of one swing shaft, the distance between the two knocking-over bars can be increased outwards or decreased inwards, and therefore the opening of the knocking-over bars can be adjusted. The distance between the knocking-over bars can be adjusted according to different fabric specification requirements, operation is convenient, practicability is high, labor time is shortened, and working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of textile machinery, in particular to a knock-over plate spacing adjustment mechanism and a warp knitting machine. Background Art

[0002] When using a double needle bed warp knitting machine to weave fabrics, in order to meet the needs of fabrics of different thicknesses, it is necessary to adjust the shed (i.e., the opening) of the machine according to the fabric specifications, that is, to finely adjust the distance between the knockover plates within a certain adjustable range to ensure that the woven fabric meets the expected density and structural standards. However, every time the spacing of the knockover plates is adjusted, a lot of work needs to be done, which wastes a lot of manpower and material resources, thereby reducing work efficiency.

[0003] After searching, the Chinese utility model application (publication number CN102031629A) discloses an automatic adjustment mechanism for the spacing of the unstrap plates of a warp knitting machine. By adding two connecting shafts, a slider and a screw are installed on the connecting shafts, and the screw is rotated by turning a hand wheel on a connecting shaft, thereby driving the slider to rotate, causing the eccentric wheel to rotate and drive the connected part of the screw to move, and the displacement is transmitted to the unstrap plate through the swing shaft seat, thereby adjusting the opening of the unstrap plate. However, with the extension of the use time of this double slider screw, the error accumulation will lead to inconsistent adjustment distances of the two unstrap plates, and the equipment needs to be inspected and maintained regularly, which invisibly increases the maintenance cost and failure rate. Utility Model Content

[0004] In order to overcome the above technical defects, the utility model provides a knock-over plate spacing adjustment mechanism and a warp knitting machine to solve the problems involved in the background technology.

[0005] The utility model provides a knockover plate spacing adjustment mechanism, comprising: a first swing shaft and a second swing shaft, a first knockover plate and a second knockover plate which are respectively fixedly mounted with the first swing shaft and the second swing shaft and are distributed in a mirror-symmetrical manner, a first swing arm and a second swing arm which are respectively connected to the first swing shaft and the second swing shaft in a transmission manner and are distributed in a centrally symmetrical manner, a connecting rod connecting the first swing arm and the second swing arm, and a driving unit which drives the first swing arm to rotate.

[0006] Preferably or optionally, the first swing shaft and the second swing shaft are respectively provided with one, two or more first knockover plates and second knockover plates.

[0007] Preferably or optionally, the first knockover plate and the second knockover plate are respectively connected in transmission with the first swing shaft and the second swing shaft through a connecting rod structure.

[0008] Preferably or optionally, a third swing arm connected to the driving unit is further provided on the first swing shaft, and the third swing arm is distributed in a mirror-symmetrical manner with the first swing arm.

[0009] Preferably or optionally, the third swing arm and the first swing arm are an integrated structure.

[0010] Preferably or optionally, the driving unit includes: a driving source, a screw connected to the output end of the driving source, a slider mounted on the screw, a connecting rod connected to the slider, a waist-shaped hole arranged on the connecting rod, and a connecting key passing through the waist-shaped hole and connected to the third swing arm.

[0011] Preferably or optionally, the driving source is a hand wheel mounted on one end of the screw rod.

[0012] Preferably or optionally, the first swing shaft and the second swing shaft are rotatably mounted on the partition through bearings;

[0013] The first knockover plate and the second knockover plate are located on one side of the partition; the first swing arm, the second swing arm, the connecting rod and the driving unit are located on the other side of the partition.

[0014] Preferably or optionally, the spacing between the first knockover plate and the second knockover plate is adjusted in a range of 2 to 12 mm.

[0015] The utility model also provides a warp knitting machine, comprising the knock-over plate spacing adjustment mechanism.

[0016] The utility model relates to a knockover plate spacing adjustment mechanism and a warp knitting machine, which have the following beneficial effects compared with the prior art: the utility model connects a first swing arm and a second swing arm that are centrally symmetrically distributed through a connecting rod, and by adjusting the rotation of one of the swing shafts, the first swing shaft and the second swing shaft move in opposite directions, so that the spacing between the two knockover plates increases outward or decreases inward, thereby adjusting the opening of the knockover plates. The spacing of the knockover plates can be adjusted according to different fabric specification requirements, and the operation is convenient, the practicability is strong, the labor time is reduced, and the work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the regulating mechanism in the utility model.

[0018] Figure 2 It is a structural schematic diagram of the mechanical transmission side of the regulating mechanism in the utility model.

[0019] Figure 3 It is a structural schematic diagram of the weaving area side of the adjusting mechanism in the utility model.

[0020] The accompanying drawings are marked as follows: 1. first swing shaft; 2. second swing shaft; 3. first knockout plate; 4. second knockout plate; 5. first swing arm; 6. second swing arm; 7. third swing arm; 8. connecting rod; 9. screw rod; 10. slider; 11. connecting rod; 12. waist-shaped hole; 13. connecting key; 14. hand wheel; 15. partition. DETAILED DESCRIPTION

[0021] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0022] See attached Figures 1 to 3 A knockover plate spacing adjustment mechanism is mainly used in warp knitting machines. It can finely adjust the distance between the knockover plates within a certain adjustable range to meet the opening distance required by different fabric specifications. The spacing adjustment mechanism includes: a first swing shaft 1 and a second swing shaft 2, a first knockover plate 3 and a second knockover plate 4 which are respectively connected to the first swing shaft 1 and the second swing shaft 2 in a mirror-symmetrical manner, a first swing arm 5 and a second swing arm 6 which are respectively arranged on the first swing shaft 1 and the second swing shaft 2 and are centrally symmetrically distributed, a connecting rod 8 connecting the first swing arm 5 and the second swing arm 6, and a driving unit for driving the first swing arm 5 to rotate.

[0023] In this embodiment, the first swing arm 5 and the second swing arm 6 are symmetrically distributed and connected by the connecting rod 8. By adjusting the rotation of one of the swing shafts, the first swing shaft 1 and the second swing shaft 2 can be moved in opposite directions. The first knockout plate 3 and the second knockout plate 4 are connected to the first swing shaft 1 and the second swing shaft 2 through the connecting rod structure, so that the distance between the two knockout plates increases outward or decreases inward, thereby adjusting the opening of the knockout plates. The distance between the knockout plates can be adjusted according to different fabric specification requirements. Specifically, the distance between the first knockout plate 3 and the second knockout plate 4 is adjusted in the range of 2 to 12 mm. The entire distance adjustment mechanism is easy to operate and has strong practicality, which reduces labor time and improves work efficiency. Among them, the connecting rod structure is an existing structure and will not be introduced in detail again.

[0024] In a further embodiment, a third swing arm 7 connected to the driving unit is further provided on the first swing shaft 1, and the third swing arm 7 and the first swing arm 5 are distributed in a mirror-symmetrical manner, and the third swing arm 7 and the first swing arm 5 are an integrated structure, so as to improve the smoothness of movement and the accuracy of adjustment, especially in high-speed operation or continuous working cycle, and can maintain a stable spacing between the loop-undoing plates to ensure the quality of the fabric.

[0025] In a further embodiment, the driving unit includes: a driving source, a screw 9 connected to the output end of the driving source, a slider 10 mounted on the screw 9, a connecting rod 11 connected to the slider 10, a waist-shaped hole 12 provided on the connecting rod 11, and a connecting key 13 passing through the waist-shaped hole 12 and connected to the third swing arm 7, and the rotation of the first swing arm 5 is realized through the slider 10 screw 9 transmission structure. Among them, the driving source is a hand wheel 14 installed at one end of the screw 9. Of course, for those skilled in the art, the driving source can also be a driving motor to achieve automatic control.

[0026] In a further embodiment, the first swing shaft 1 and the second swing shaft 2 are respectively provided with one, two or more first knockover plates 3 and second knockover plates 4. The user can adjust the number of knockover plates according to the actual application requirements to achieve optimal performance and safety.

[0027] In a further embodiment, the first swing shaft 1 and the second swing shaft 2 are rotatably mounted on the partition 15 through bearings; the first knockover plate 3 and the second knockover plate 4 are located on one side of the partition 15; the first swing arm 5, the second swing arm 6, the connecting rod 8 and the driving unit are located on the other side of the partition 15. The partition 15 makes the mechanical transmission part and the weaving area independent of each other, reduces mutual interference, and facilitates the convenience of maintenance and overhaul.

[0028] In order to facilitate understanding of the technical solution of the unstrap plate spacing adjustment mechanism, a brief description is given of its working principle: when it is necessary to increase the spacing between the first unstrap plate 3 and the second unstrap plate 4, the hand wheel 14 is rotated to drive the screw rod 9 to rotate, so that the slider 10 engaged therewith moves horizontally, and the first swing shaft 1 and the first unstrap plate 3 are rotated through the transmission of the connecting rod 11 and the third swing arm 7. At the same time, through the transmission of the first swing arm 5, the connecting rod 8 and the second swing arm 6, the second swing shaft 2 and the second unstrap plate 4 are rotated in the opposite direction to the first swing shaft 1, so that the spacing between the first unstrap plate 3 and the second unstrap plate 4 is increased outwardly or decreased inwardly, thereby adjusting the opening of the unstrap plates.

[0029] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

Claims

1. A knockout plate spacing adjustment mechanism, characterized in that: include: A first swing shaft (1) and a second swing shaft (2), a first knockover plate (3) and a second knockover plate (4) on which the first swing shaft (1) and the second swing shaft (2) are respectively fixedly mounted and are distributed in a mirror-symmetrical manner, a first swing arm (5) and a second swing arm (6) which are respectively transmission-connected to the first swing shaft (1) and the second swing shaft (2) and are distributed in a centrally symmetrical manner, a connecting rod (8) connecting the first swing arm (5) and the second swing arm (6), and a driving unit for driving the first swing arm (5) to rotate.

2. The knockout plate spacing adjustment mechanism according to claim 1, characterized in that: The first swing shaft (1) and the second swing shaft (2) are respectively provided with one, two or more first knockover plates (3) and second knockover plates (4).

3. The knockout plate spacing adjustment mechanism according to claim 1, characterized in that: The first knockover plate (3) and the second knockover plate (4) are respectively connected to the first swing shaft (1) and the second swing shaft (2) in transmission via a connecting rod structure.

4. The knockout plate spacing adjustment mechanism according to claim 1, characterized in that: The first swing shaft (1) is also provided with a third swing arm (7) connected to the drive unit, and the third swing arm (7) and the first swing arm (5) are distributed in a mirror-symmetrical manner.

5. The knockout plate spacing adjustment mechanism according to claim 4, characterized in that: The third swing arm (7) and the first swing arm (5) are an integrated structure.

6. The knockout plate spacing adjustment mechanism according to claim 5, characterized in that: The driving unit comprises: a driving source, a screw rod (9) connected to the output end of the driving source, a slider (10) mounted on the screw rod (9), a connecting rod (11) connected to the slider (10), a waist-shaped hole (12) provided on the connecting rod (11), and a connecting key (13) passing through the waist-shaped hole (12) and connected to the third swing arm (7).

7. The knockout plate spacing adjustment mechanism according to claim 6, characterized in that: The driving source is a hand wheel (14) installed at one end of the screw rod (9).

8. The knockover plate spacing adjustment mechanism according to claim 1, characterized in that: The first swing shaft (1) and the second swing shaft (2) are rotatably mounted on the partition (15) via bearings; The first knockover plate (3) and the second knockover plate (4) are located on one side of the partition (15); the first swing arm (5), the second swing arm (6), the connecting rod (8) and the driving unit are located on the other side of the partition (15).

9. The knockover plate spacing adjustment mechanism according to claim 1, characterized in that: The spacing between the first knockover plate (3) and the second knockover plate (4) can be adjusted in a range of 2 to 12 mm.

10. A warp knitting machine, characterized in that: It comprises the knockout plate spacing adjustment mechanism as described in any one of claims 1 to 9.

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