A knock-off plate swing mechanism for a double needle bed warp knitting machine

Abstract

The present invention discloses a knockout plate swing mechanism for a double needle bed warp knitting machine, belonging to the technical field of warp knitting machines, and comprising two symmetrically arranged swing mechanisms, each of which comprises a knockout plate, a support, a first connecting rod, a support driving swing arm, a support arm, a second connecting rod, a support driving swing arm, a driving arm, a driving rod, a first swing shaft, and a second swing shaft. The support arm is provided with a first fulcrum, a second fulcrum, and a third fulcrum, and the first fulcrum, the second fulcrum, and the third fulcrum are sequentially arranged on the support arm; the support is provided with a fourth fulcrum and a fifth fulcrum, and the third fulcrum and the fourth fulcrum are located on a side away from the knockout plate, and the knockout plate is mounted on the knockout plate support; the present invention realizes the knitting of the knitting needles into loops by swinging the knockout plate, and the comb bar is fixed, which is conducive to the arrangement of more and more complex comb bars, and can knit spacer fabrics with more complex processes.

Description

Technical Field

[0001] The invention belongs to the technical field of warp knitting machines, and in particular relates to a knock-off plate swing mechanism for a double-needle bed warp knitting machine. Background Art

[0002] The double needle bed warp knitting machine has two sets of front and rear needle beds and a looping structure, which can weave spacer fabrics (commonly known as "sandwiches") with a thickness of 0.8-12mm, which are used as clothing fabrics, shoe fabrics, home textile fabrics, and automotive interiors. The existing double needle bed warp knitting machine has a looping form in which the front and rear knockout plates are fixed, and the comb swings to allow the yarn guide needles to form loops on the front and rear needle beds to achieve weaving. With the development of the double needle bed spacer fabric weaving process, the number of combs in the double needle bed warp knitting machine is increasing, and the comb form is also more complicated. The present invention provides a knockout plate swinging mechanism that can fix the comb without swinging, and the front and rear knockout plates swing to achieve loop weaving.

[0003] Figure 5 An example of the prior art is given. In the existing double needle bed warp knitting machine, the front and rear knockout plate supports are fixed on their respective swing shafts. The knockout plate interval can be adjusted according to the needs of the knitting process. The knockout plate is fixed and does not swing during knitting. There are two front and rear swing arms to control the swing of the comb bar, and two sets of connecting rod mechanisms are required to drive the swing arms. Because this structure has two sets of connecting rods to drive the swing arms, the position of the connecting rods limits the expansion of the number of comb bars, and the weight of the comb bar components will also increase with the increase in the number of comb bars. The inertia during swinging will be greater, which will affect the increase in knitting speed; the swing range will also increase with the increase in the number of comb bars, and the inclination angle of the outermost comb bar will be greater during swinging, which is not conducive to knitting.

[0004] Figure 6 Another example of the prior art is given, in which the front and rear knockout plate supports are fixed on their respective swing shafts, and the knockout plate supports can swing with the swing shaft as the fulcrum. At this time, the front and rear knockout plates will produce a height difference H, and the greater the swing amplitude, the greater the H value will be. The interval between the knockout plates cannot be stably controlled, which will affect the normal weaving.

[0005] The weaving of spacer fabrics requires a stable spacing between the front and rear knockover plates, and with the development of weaving technology, more and more complex combs need to be configured. The above-mentioned existing technologies cannot meet the weaving of spacer fabrics after the number of combs increases and the comb structure becomes complex. Summary of the invention

[0006] The embodiment of the present invention provides a knock-off plate swing mechanism for a double needle bed warp knitting machine to solve the problems in the prior art.

[0007] The embodiment of the present invention adopts the following technical solution: a knockover plate swing mechanism of a double needle bed warp knitting machine, comprising two symmetrically arranged swing mechanisms, each of which comprises a knockover plate, a support, a first connecting rod, a support driving swing arm, a support arm, a second connecting rod, a support driving swing arm, a driving arm, a driving rod, a first swing shaft and a second swing shaft;

[0008] The support arm is provided with a first fulcrum, a second fulcrum and a third fulcrum, and the first fulcrum, the second fulcrum and the third fulcrum are sequentially arranged on the support arm;

[0009] The support is provided with a fourth fulcrum and a fifth fulcrum, and the third fulcrum and the fourth fulcrum are located on a side away from the knockout plate;

[0010] The ring undocking plate is fixedly connected to the end of the support, the support is rotatably connected to the first fulcrum, the second fulcrum and the third fulcrum on the support arm, and the first swing shaft is rotatably connected below the support.

[0011] Furthermore, the fifth fulcrum on the support is rotatably connected to the second fulcrum on the support arm, and the support can swing around the second fulcrum.

[0012] Furthermore, one end of the first connecting rod is rotatably connected to a fourth fulcrum on the support, and the other end of the first connecting rod is rotatably connected to a support driving swing arm.

[0013] Furthermore, the first swing shaft is rotatably connected to a third fulcrum on the support arm, and the support arm can swing around the first swing shaft.

[0014] Furthermore, one end of the second connecting rod is rotatably connected to the first fulcrum on the support arm, and the other end of the second connecting rod is rotatably connected to the support driving swing arm.

[0015] Furthermore, the support driving swing arm and the support driving swing arm are both connected to the second swing shaft, and the support driving swing arm and the support driving swing arm can swing synchronously with the second swing shaft.

[0016] Furthermore, the upper end of the driving rod is rotatably connected to the driving arm, and the driving arm is rotatably connected to the second swing shaft, and the driving arm can swing around the second swing shaft.

[0017] Furthermore, the lower end of the driving rod is connected to a driving mechanism.

[0018] At least one of the above technical solutions adopted in the embodiments of the present invention can achieve the following beneficial effects:

[0019] Firstly, the present invention provides a knock-out plate swinging mechanism for a double needle bed warp knitting machine, which allows the knock-out plate to swing to realize the knitting of the needles into loops, and the comb bar is fixed, which is conducive to the arrangement of more and more complex comb bars, and can weave spacer fabrics with more complex processes.

[0020] Secondly, the swing fulcrum of the support in the present invention is on the support arm, and the support arm can swing around the swing axis, so that the swing fulcrum of the ring-unloading plate support can be changed, avoiding the existing technology such as Figure 6 In the example, since the swing fulcrum of the knockover plate support is fixed, a height difference is generated between the front and rear knockover plates when swinging; the knockover plate of the present invention can more stably control the distance between the front and rear knockover plates when swinging, and can provide a larger swing amplitude S according to the needs of the weaving process.

[0021] Secondly, in the present invention, the swing center of the support is transferred to the fulcrum of the support arm, and the support arm can swing around the first swing shaft. The swing center of the support will change continuously with the swing of the support arm. In this way, a swinging action of the unloading plates with fixed intervals and small height changes can be designed. The support and the support arm are connected to the first swing shaft, and a set of driving mechanism is used to drive the swing shaft to control the simultaneous movement of the support and the support arm, thereby simplifying the transmission structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 It is a front view of the present invention;

[0024] Figure 2 is a front view of a support arm of the present invention;

[0025] Figure 3 It is a front view of the support of the present invention;

[0026] Figure 4 It is a schematic diagram of the swing amplitude of the present invention;

[0027] Figure 5 For the prior art Figure 1 ;

[0028] Figure 6 For the prior art Figure 2 ;

[0029] Reference numerals

[0030] Ring unhooking plate 1, support 2, first connecting rod 3, support driving swing arm 4, support arm 5, second connecting rod 6, support driving swing arm 7, driving arm 8, driving rod 9, first swing shaft 10, second swing shaft 11, first fulcrum 12, second fulcrum 13, third fulcrum 14, fourth fulcrum 15, fifth fulcrum 16. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] The technical solutions provided by various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0033] Reference Figures 1 to 6 As shown, the embodiment of the present invention provides a knockover plate swing mechanism for a double needle bed warp knitting machine, comprising two symmetrically arranged swing mechanisms, each of which comprises a knockover plate 1, a support 2, a first connecting rod 3, a support driving swing arm 4, a support arm 5, a second connecting rod 6, a support driving swing arm 7, a driving arm 8, a driving rod 9, a first swing shaft 10 and a second swing shaft 11;

[0034] The support arm 5 is provided with a first fulcrum 12, a second fulcrum 13 and a third fulcrum 14, and the first fulcrum 12, the second fulcrum 13 and the third fulcrum 14 are arranged on the support arm 5 in sequence; the support 2 is provided with a fourth fulcrum 15 and a fifth fulcrum 16, and the third fulcrum 14 and the fourth fulcrum 15 are located on the side away from the unhooking plate 1; the support arm 5 is provided with a first fulcrum 12, a second fulcrum 13 and a third fulcrum 14, and the support 2 is provided with a fourth fulcrum 15 and a fifth fulcrum 16. When working, the moving point on the support 2 can be on the support arm 5, and the moving fulcrum of the support 2 can be continuously adjusted with the change of the swing amplitude, so that the interval and the height difference of the front and rear unhooking plates are always controlled within a fixed range.

[0035] The unhooking plate 1 is fixedly connected to the end of the support 2. In different usage situations, the support 2 is rotatably connected to the first fulcrum 12 on the support arm 5, the support 2 is rotatably connected to the second fulcrum 13 on the support arm 5; the support 2 is rotatably connected to the third fulcrum 14 on the support arm 5, and the first swing shaft 10 is rotatably connected to the bottom of the support 2.

[0036] In the present invention, the support 2 and the support arm 5 are connected to the first swing shaft 10, and a set of driving mechanism is used to drive the swing shaft to control the support 2 and the support arm 5 to move simultaneously, thereby simplifying the transmission structure.

[0037] Specifically, the fifth fulcrum 16 on the support 2 is rotatably connected to the second fulcrum 13 on the support arm 5, the support 2 can swing around the second fulcrum 13, one end of the first connecting rod 3 is rotatably connected to the fourth fulcrum 15 on the support 2, and the other end of the first connecting rod 3 is rotatably connected to the support driving swing arm 4. When working, the swing of the support driving swing arm 4 can drive the first connecting rod 3 to swing, and the first connecting rod 3 swings the support 2 to swing synchronously.

[0038] Specifically, the first swing shaft 10 is rotatably connected to the third fulcrum 14 on the support arm 5, and the support arm 5 can swing around the first swing shaft 10. One end of the second connecting rod 6 is rotatably connected to the first fulcrum 12 on the support arm 5, and the other end of the second connecting rod 6 is rotatably connected to the support driving swing arm 7. The working swing of the support driving swing arm 7 drives the second connecting rod 6 to swing, thereby driving the support arm 5 to swing through the first swing shaft 10.

[0039] Specifically, the support driving swing arm 4 and the support driving swing arm 7 are both connected to the second swing shaft 11, and the support driving swing arm 4 and the support driving swing arm 7 can swing synchronously with the second swing shaft 11. The upper end of the driving rod 9 is rotatably connected to the driving arm 8, and the driving arm 8 is rotatably connected to the second swing shaft 11, and the driving arm 8 can swing around the second swing shaft 11; the lower end of the driving rod 9 is connected to a driving mechanism. The driving mechanism can provide driving force for the subsequent swinging of the knockout plate 1. When the driving mechanism is working, it drives the driving rod 9 to swing, drives the driving arm 8 to swing, and thus drives the support driving swing arm 4 and the support driving swing arm 7 to swing on the second swing shaft 11.

[0040] Working principle of the present invention: When the present invention is in use, the driving mechanism drives the second swing shaft 11 to rotate through the driving rod 9 and the driving arm 8, so that the support driving swing arm 4 and the support driving swing arm 7 swing synchronously, the swing of the support driving swing arm 4 can drive the first connecting rod 3 to swing, the first connecting rod 3 swings the support 2 to swing synchronously, and the working swing of the support driving swing arm 7 drives the second connecting rod 6 to swing, thereby driving the support arm 5 to swing through the first swing shaft 10. Because the movement fulcrum of the support 2 is on the support arm 5, the movement fulcrum of the support 2 can be continuously adjusted with the change of the swing amplitude, and the fourth fulcrum 15 and the fifth fulcrum 16 on the support 2 can be adjusted to rotate with the first fulcrum 12, the second fulcrum 13 and the third fulcrum 14 on the support arm 5, so that the interval and height difference of the front and rear knockover plates 1 are always controlled within a fixed range, and the knockover plates are allowed to swing to realize the weaving of the knitting needles into loops, and the comb bar is fixed, which is conducive to the arrangement of more and more complex comb bars, and can weave more complex spacer fabrics.

[0041] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A knock-off plate swing mechanism for a double needle bed warp knitting machine, characterized in that: The invention comprises two symmetrically arranged swing mechanisms, each of which comprises a knockout plate (1), a support (2), a first connecting rod (3), a support driving swing arm (4), a support arm (5), a second connecting rod (6), a support driving swing arm (7), a driving arm (8), a driving rod (9), a first swing shaft (10) and a second swing shaft (11); The support arm (5) is provided with a first fulcrum (12), a second fulcrum (13) and a third fulcrum (14), and the first fulcrum (12), the second fulcrum (13) and the third fulcrum (14) are arranged on the support arm (5) in sequence; The support (2) is provided with a fourth fulcrum (15) and a fifth fulcrum (16), and the third fulcrum (14) and the fourth fulcrum (15) are located on a side away from the knockout plate (1); The knockout plate (1) is fixedly connected to the end of the support (2); the support (2) is rotatably connected to a first fulcrum (12), a second fulcrum (13) and a third fulcrum (14) on the support arm (5); and the first swing shaft (10) is rotatably connected below the support (2); The fifth fulcrum (16) on the support (2) is rotatably connected to the second fulcrum (13) on the support arm (5), and the support (2) can swing around the second fulcrum (13); One end of the first connecting rod (3) is rotatably connected to a fourth fulcrum (15) on the support (2), and the other end of the first connecting rod (3) is rotatably connected to a support driving swing arm (4); The first swing shaft (10) is rotatably connected to a third fulcrum (14) on the support arm (5), and the support arm (5) can swing around the first swing shaft (10); One end of the second connecting rod (6) is rotatably connected to the first fulcrum (12) on the support arm (5), and the other end of the second connecting rod (6) is rotatably connected to the support drive swing arm (7); The support driving swing arm (4) and the support driving swing arm (7) are both connected to the second swing shaft (11), and the support driving swing arm (4) and the support driving swing arm (7) can swing synchronously with the second swing shaft (11).

2. The knock-over plate swing mechanism of a double needle bed warp knitting machine according to claim 1, characterized in that: The upper end of the driving rod (9) is rotatably connected to the driving arm (8), and the driving arm (8) is rotatably connected to the second swing shaft (11). The driving arm (8) can swing around the second swing shaft (11).

3. The knock-over plate swing mechanism of a double needle bed warp knitting machine according to claim 2, characterized in that: The lower end of the driving rod (9) is connected to a driving mechanism.

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