Yarn guide structure of fiber yarn production flat knitting machine

Abstract

The utility model discloses a yarn guide structure of a fiber yarn production flat knitting machine, which comprises a yarn guide support and a yarn guide nozzle, the yarn guide support is divided into an upper part, a middle part and a lower part, a positioning mechanism is arranged at the middle part of the yarn guide support, the yarn guide nozzle is arranged at the lower part of the yarn guide support, and the length of the yarn guide nozzle can be adjusted. After the length is adjusted, the position is locked through a sliding locking assembly; the positioning mechanism comprises a connecting frame, the connecting frame is fixed to the middle of the yarn guide support through bolts and nuts, and the two ends of the connecting frame are fixedly connected with connecting plates through bolts and nuts. According to the yarn guide structure of the fiber yarn production flat knitting machine, the positioning cylinder in the positioning mechanism is mounted in the mounting cylinder, so that the positioning cylinder can be replaced when the positioning cylinder is seriously abraded, the positioning cylinder can be taken out only by rotating the positioning cylinder to enable the mounting rod to be aligned with the vertical part of the L-shaped groove during replacement, and the practicability of the device during working is improved.

Description

Technical Field

[0001] This utility model relates to the field of fiber yarn production technology, specifically to a yarn guide structure for a flat knitting machine for fiber yarn production. Background Technology

[0002] Computerized flat knitting machine is a double-needle plate-latch needle weft knitting machine. Its cam device is like a set of flat cams. The needle feet can enter the groove of the cam. Moving the cam forces the needle to make regular up-and-down movements in the needle groove of the needle plate. Through the action of the needle hook and the needle tongue, the yarn can be knitted into a knitted fabric.

[0003] The patent publication number CN204023124U discloses a yarn feeding guide for a computerized flat knitting machine, which includes a yarn guide hole bracket, a yarn guide nozzle support, and a yarn guide nozzle. The yarn guide nozzle is located at the lower part of the yarn guide nozzle support, and a U-shaped groove is provided at the upper part of the yarn guide nozzle support. The yarn guide nozzle is fixed by the yarn guide nozzle support and the U-shaped groove. The yarn guide nozzle has a yarn guide hole one for passing through the ground yarn and a yarn guide hole two for passing through the face yarn through it longitudinally.

[0004] As shown in the above technology, the yarn guide structure uses a positioning cylinder to position and guide the yarn. The yarn moves in the positioning cylinder and comes into contact with the inner wall of the positioning cylinder and generates friction. After long-term use, the inner wall of the positioning cylinder wears down, which causes the positioning to change and affects the positional accuracy of the yarn guide. Existing positioning cylinders are usually fixed and inconvenient to disassemble. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a yarn guide structure for a flat knitting machine for fiber yarn production, which solves the problem that the positioning cylinder in the existing yarn guide structure needs to be replaced after long-term use due to wear.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: A yarn guide structure for a fiber yarn production flat knitting machine includes a yarn guide bracket and a yarn guide nozzle. The yarn guide bracket is divided into an upper part, a middle part and a lower part. A positioning mechanism is provided at the middle part of the yarn guide bracket. The yarn guide nozzle is installed at the lower part of the yarn guide bracket. The length of the yarn guide nozzle can be adjusted, and the position is locked by a sliding locking component after the length is adjusted.

[0007] The positioning mechanism includes a connecting frame, which is fixed to the middle of the yarn guide bracket by bolts and nuts. Both ends of the connecting frame are fixedly connected to connecting plates by bolts and nuts. An installation cylinder is fixedly connected to one side of the connecting plate, and a positioning cylinder is installed inside the installation cylinder. The installation cylinder has two L-shaped grooves, one in the front and one in the back.

[0008] Preferably, a fixed ring is fixedly connected to the bottom surface of the mounting cylinder, a movable ring is sleeved on the outside of the mounting cylinder, and a limit spring is fixedly connected between the fixed ring and the movable ring on opposite sides, with the limit spring sleeved on the outside of the mounting cylinder.

[0009] Preferably, the L-shaped groove has a vertical portion and a horizontal arc-shaped portion. The surface of the positioning cylinder is fixedly connected with two mounting rods, one in front and one behind. The positioning cylinder is inserted into the interior of the mounting cylinder and rotated so that the mounting rods enter the horizontal arc-shaped portion of the L-shaped groove to complete the installation of the positioning cylinder.

[0010] Preferably, the sliding locking assembly includes a groove formed in the lower part of the yarn guide bracket, the yarn guide nozzle is slidably connected to the inner surface of the groove, and a T-shaped groove is formed on the front side of the yarn guide nozzle.

[0011] Preferably, a slide rod is slidably connected to the front of the lower part of the yarn guide bracket, and a pressure plate is fixedly connected to one end of the slide rod located in the T-slot. The slide rod passes through the yarn guide bracket and is rotatably connected to a cam handle at one end extending to the rear of the yarn guide bracket.

[0012] Preferably, the slide bar and the pressure plate form a T-shape. The cam handle rotates and drives the pressure plate to move through the slide bar, so that the pressure plate presses against the yarn guide nozzle to lock and fix the adjusted position of the yarn guide nozzle.

[0013] Beneficial effects

[0014] This utility model provides a yarn guide structure for a flat knitting machine for producing fiber yarn. Compared with the prior art, it has the following advantages:

[0015] 1. The yarn guide structure of this fiber yarn production flat knitting machine includes a positioning mechanism with a connecting frame. The connecting frame is fixed to the middle of the yarn guide bracket by bolts and nuts. Both ends of the connecting frame are fixedly connected to connecting plates by bolts and nuts. The positioning cylinder in the positioning mechanism is installed in the mounting cylinder. When the positioning cylinder is severely worn, it can be replaced. When replacing, it is only necessary to rotate the positioning cylinder to align the mounting rod with the vertical part of the L-shaped groove to remove it, which improves the practicality of the device during operation.

[0016] 2. The yarn guide structure of this fiber yarn production flat knitting machine has a sliding groove at the bottom of the yarn guide bracket, and the yarn guide nozzle is slidably connected to the inner surface of the sliding groove. A T-shaped groove is opened on the front of the yarn guide nozzle, and a sliding rod is slidably connected to the front of the bottom of the yarn guide bracket. The length of the yarn guide nozzle can be adjusted, and after adjustment, the adjusted position of the yarn guide nozzle can be quickly locked by rotating the cam handle, which improves the convenience of using the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the appearance of the present utility model;

[0018] Figure 2 This is an exploded view of the positioning mechanism of this utility model;

[0019] Figure 3 This is a partial schematic diagram of the yarn guide nozzle of this utility model;

[0020] Figure 4 This is a rear-view side view diagram of the present invention.

[0021] In the diagram: 1. Yarn guide bracket; 2. Yarn guide nozzle; 3. Positioning mechanism; 31. Connecting frame; 32. Connecting plate; 33. Mounting cylinder; 34. L-shaped groove; 35. Fixed ring; 36. Movable ring; 37. Limiting spring; 38. Positioning cylinder; 39. Mounting rod; 4. Sliding locking assembly; 41. Slide groove; 42. T-shaped groove; 43. Slide rod; 44. Pressure plate; 45. Cam handle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 The yarn guide structure of this fiber yarn production flat knitting machine offers two technical solutions:

[0024] The first embodiment includes a yarn guide bracket 1 and a yarn guide nozzle 2. The yarn guide bracket 1 is divided into an upper part, a middle part and a lower part. A positioning mechanism 3 is provided in the middle part of the yarn guide bracket 1, and the yarn guide nozzle 2 is installed in the lower part of the yarn guide bracket 1.

[0025] The positioning mechanism 3 includes a connecting frame 31, which is fixed to the middle of the yarn guide bracket 1 by bolts and nuts. Both ends of the connecting frame 31 are fixedly connected to connecting plates 32 by bolts and nuts. A mounting cylinder 33 is fixedly connected to one side of the connecting plate 32, and a positioning cylinder 38 is installed inside the mounting cylinder 33. The mounting cylinder 33 has two L-shaped grooves 34, one in front and one behind. A fixing ring 35 is fixedly connected to the bottom surface of the mounting cylinder 33, and a movable ring 36 is sleeved on the outside of the mounting cylinder 33. A limit spring 37 is fixedly connected between the opposite sides of the fixing ring 35 and the movable ring 36, and the limit spring 37 is sleeved on the outside of the mounting cylinder 33. The L-shaped grooves 34 have a vertical part and a horizontal arc part. Two mounting rods 39 are fixedly connected to the surface of the positioning cylinder 38. The positioning cylinder 38 is inserted into the inside of the mounting cylinder 33 and rotated so that the mounting rods 39 enter the horizontal arc part of the L-shaped groove 34 to complete the installation of the positioning cylinder 38.

[0026] The positioning cylinder 38 in the positioning mechanism 3 is installed in the mounting cylinder 33. When the positioning cylinder 38 is severely worn, it can be replaced. When replacing it, you only need to rotate the positioning cylinder 38 so that the mounting rod 39 is aligned with the vertical part of the L-shaped groove 34 to remove it, which improves the practicality of the device during operation.

[0027] The second embodiment differs from the first embodiment in that the length of the yarn guide nozzle 2 can be adjusted, and the position is locked by the sliding locking assembly 4 after the length is adjusted. The sliding locking assembly includes a groove 41 opened in the yarn guide bracket 1. The yarn guide nozzle 2 is slidably connected to the inner surface of the groove 41. A T-shaped groove 42 is opened on the front of the yarn guide nozzle 2. A slide rod 43 is slidably connected to the front of the lower part of the yarn guide bracket 1. A pressure plate 44 is fixedly connected to one end of the slide rod 43 located in the T-shaped groove 42. The slide rod 43 passes through the yarn guide bracket 1 and is rotatably connected to a cam handle 45 at the end extending to the rear of the yarn guide bracket 1. The slide rod 43 and the pressure plate 44 form a T-shape. The cam handle 45 rotates and drives the pressure plate 44 to move through the slide rod 43, so that the pressure plate 44 presses against the yarn guide nozzle 2 to lock and fix the adjusted position of the yarn guide nozzle 2.

[0028] The length of the yarn guide nozzle 2 can be adjusted, and after adjustment, the adjusted position of the yarn guide nozzle 2 can be quickly locked by rotating the cam handle 45, which improves the convenience of using the device.

[0029] When installing the positioning cylinder 38, insert the positioning cylinder 38 into the mounting cylinder 33. During insertion, align the mounting rod 39 with the vertical part of the L-shaped groove 34. During insertion, the mounting rod 39 contacts the movable ring 36, pushing the movable ring 36 to move. When the mounting rod 39 aligns with the horizontal arc-shaped part of the L-shaped groove 34, rotate the positioning cylinder 38 so that the mounting rod 39 enters the horizontal arc-shaped part. The elastic force of the limit spring 37 stabilizes the position of the positioning cylinder 38 after installation. In addition, when adjusting the length of the yarn guide 2, rotate the cam handle 45 to disengage the pressure plate 44 from pressing the yarn guide 2. Then move the yarn guide 2 up and down. After adjustment, rotate the cam handle 45 in the opposite direction to lock the adjusted position.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A guide structure of a fibre yarn production machine, comprising a guide support (1) and a guide nozzle (2), characterized in that: The yarn guide bracket (1) is divided into an upper part, a middle part and a lower part. A positioning mechanism (3) is provided in the middle part of the yarn guide bracket (1). The yarn guide nozzle (2) is installed in the lower part of the yarn guide bracket (1). The length of the yarn guide nozzle (2) can be adjusted, and the position is locked by the sliding locking component (4) after the length is adjusted. The positioning mechanism (3) includes a connecting frame (31), which is fixed to the middle of the yarn guide bracket (1) by bolts and nuts. Both ends of the connecting frame (31) are fixedly connected to connecting plates (32) by bolts and nuts. A mounting cylinder (33) is fixedly connected to one side of the connecting plate (32), and a positioning cylinder (38) is installed inside the mounting cylinder (33). The mounting cylinder (33) has two L-shaped grooves (34) at the front and rear.

2. A guide structure of a fiber yarn production machine according to claim 1, characterized in that: A fixing ring (35) is fixedly connected to the bottom surface of the mounting cylinder (33), and a movable ring (36) is sleeved on the outside of the mounting cylinder (33). A limiting spring (37) is fixedly connected between the fixed ring (35) and the movable ring (36) on opposite sides, and the limiting spring (37) is sleeved on the outside of the mounting cylinder (33).

3. A guide structure of a fiber yarn production machine according to claim 1, characterized in that: The L-shaped groove (34) has a vertical part and a horizontal arc part. The surface of the positioning cylinder (38) is fixedly connected with two front and rear mounting rods (39). The positioning cylinder (38) is inserted into the interior of the mounting cylinder (33) and rotated so that the mounting rods (39) enter the horizontal arc part of the L-shaped groove (34) to complete the installation of the positioning cylinder (38).

4. A guide structure of a fiber yarn production machine according to claim 1, characterized in that: The sliding locking assembly includes a groove (41) formed at the lower part of the yarn guide bracket (1), the yarn guide nozzle (2) is slidably connected to the inner surface of the groove (41), and a T-shaped groove (42) is formed on the front side of the yarn guide nozzle (2).

5. A guide structure for a fibre yarn production machine according to claim 4, characterized in that: A slide rod (43) is slidably connected to the front of the lower part of the yarn guide bracket (1). One end of the slide rod (43) located in the T-slot (42) is fixedly connected to a pressure plate (44). The slide rod (43) passes through the yarn guide bracket (1) and is rotatably connected to a cam handle (45) at the end extending to the rear of the yarn guide bracket (1).

6. A guide structure of a fiber yarn production machine according to claim 5, characterized in that: The slide bar (43) and the pressure plate (44) form a T-shape. The cam handle (45) rotates and drives the pressure plate (44) to move through the slide bar (43), so that the pressure plate (44) presses against the yarn guide (2) to lock and fix the adjusted position of the yarn guide (2).

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