Height adjustment device for a cam of a circular knitting machine

Abstract

The utility model belongs to the technical field of circular knitting machine, concretely relates to a height adjusting device of the triangle of circular knitting machine, including the mounting seat, the mounting seat is L-shaped, the mounting seat front side wall is equipped with the limit slot, the limit slot side wall is equipped with the accommodation groove, at least two movable plates are connected in the limit slot and slide, the movable plate side wall all are connected with the triangle through the butt joint spare, be provided with height adjusting assembly in the accommodation groove. The butt joint spare includes the T-shaped block fixedly connected in the triangle rear side wall, the movable plate front side wall is equipped with the recess, the recess bottom surface is equipped with the T-shaped groove, the T-shaped block and recess and T-shaped groove are matched. The utility model can carry out height adjustment to two or more triangles on the mounting seat simultaneously, and can intuitively check its adjusted position and height change.

Description

Technical Field

[0001] This utility model belongs to the field of circular knitting machine technology, specifically relating to a height adjustment device for a circular knitting machine triangle. Background Technology

[0002] In the weaving process of a circular knitting machine, the height adjustment of the triangle is a key factor affecting fabric quality, weaving efficiency, and equipment stability.

[0003] By adjusting the cam, the required feed tension and loop space for different thicknesses of yarn (such as cotton, synthetic fibers, elastic yarn, etc.) during knitting can be varied. The height of the cam determines the travel of the needles as they rise and fall. Adjusting the height ensures that the yarn can bend and loop smoothly, avoiding missed stitches, holes, or uneven loop tension.

[0004] Currently, the height of the triangles is generally adjusted by tightening or loosening bolts. Since there are many triangles, adjusting the height of each triangle by tightening or loosening the bolts one by one will result in poor accuracy of the adjusted triangles, making it impossible to accurately judge the height of the triangles. In addition, it will prolong the downtime of the circular knitting machine and affect the processing efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a height adjustment device for the triangles of a circular knitting machine, which can simultaneously adjust the height of two or more triangles on the mounting base, and allows for a direct view of their adjusted position and height changes.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A height adjustment device for a triangle on a circular knitting machine includes a mounting base, which is L-shaped. A limiting groove is formed on the front side wall of the mounting base, and a storage groove is formed on the side wall of the limiting groove. At least two movable plates are slidably connected in the limiting groove. A triangle is connected to the side wall of each movable plate through a mating part. A height adjustment component is provided in the storage groove.

[0008] Furthermore, the docking component includes a T-shaped block fixedly connected to the rear side wall of the triangle, the front side wall of the movable plate has a groove, the bottom surface of the groove has a T-shaped groove, and the T-shaped block is adapted to the groove and the T-shaped groove.

[0009] Furthermore, each of the triangular sidewalls has three countersunk holes, and each countersunk hole is movably connected to a bolt. The sidewall of the movable plate has a threaded hole corresponding to the bolt, and the bolt is threadedly connected to the threaded hole.

[0010] Furthermore, the height adjustment assembly includes a lead screw rotatably connected to the side wall of the storage slot. The top end of the lead screw passes through the mounting base and is fixedly connected to a wheel. At least two threaded sleeves are threadedly connected to the side wall of the lead screw. Each threaded sleeve is fixedly connected to a movable plate. A positioning element is provided on the side wall of the threaded sleeve.

[0011] Furthermore, the positioning component includes two positioning plates fixedly connected to the side wall of the screw sleeve, and two positioning rods fixedly connected to the side wall of the receiving groove. The positioning rods pass through the positioning plates and are movably connected to them. Each side wall of the positioning plate is provided with a height data reading component.

[0012] Furthermore, the height data reading component includes a support rod fixedly connected to the rear side wall of the positioning plate. The rear side wall of the mounting base has a positioning groove corresponding to the support rod. The other ends of the two support rods on the same side pass through the positioning groove and are fixedly connected to the same scale pointer. The rear side wall of the mounting base is provided with scale lines between the positioning grooves.

[0013] Furthermore, the movable plate is flush with the front side wall of the mounting base.

[0014] The technical effects achieved by this utility model are as follows:

[0015] This utility model discloses a height adjustment device for the triangles of a circular knitting machine. Through the cooperation of the mounting base, movable plate, triangles and height adjustment components, the height of two or more triangles on the mounting base can be adjusted simultaneously. The device also allows for a direct view of the adjusted position and height change, achieving accurate and rapid adjustment and shortening the downtime of the circular knitting machine. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the mounting base of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the movable plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the height adjustment component of this utility model;

[0021] Figure 6 This is a schematic diagram of the rear view of the triangular structure of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Mounting base; 2. Limiting groove; 3. Storage groove; 4. Movable plate; 5. Triangle; 6. T-block; 7. Groove; 8. T-slot; 9. Bolt; 10. Screw hole; 11. Lead screw; 12. Screw sleeve; 13. Positioning plate; 14. Support rod; 15. Scale pointer; 16. Positioning groove; 17. Scale line; 18. Rotary wheel; 19. Positioning rod. Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figures 1-6 As shown, a height adjustment device for a circular knitting machine triangle includes a mounting base 1, which is L-shaped. A limiting groove 2 is formed on the front side wall of the mounting base 1, and a storage groove 3 is formed on the side wall of the limiting groove 2. At least two movable plates 4 are slidably connected within the limiting groove 2, and the movable plates 4 are flush with the front side wall of the mounting base 1. This facilitates the triangle 5 fitting snugly against the mounting base 1, reducing gaps. The side walls of the movable plates 4 are each connected to the triangle 5 via mating parts. A height adjustment component is provided within the storage groove 3.

[0026] like Figure 4 and Figure 6 As shown, the docking component includes a T-shaped block 6 fixedly connected to the rear side wall of the triangle 5, a groove 7 is provided on the front side wall of the movable plate 4, and a T-shaped groove 8 is provided on the bottom surface of the groove 7. The T-shaped block 6 is adapted to the groove 7 and the T-shaped groove 8.

[0027] The method of using T-shaped block 6 and T-shaped groove 8 for docking has the advantages of convenient operation, simple structure and high stability. After assembly, triangle 5 is always in a stable state.

[0028] like Figure 1 and Figure 4 As shown, each side wall of triangle 5 has three countersunk holes, and bolts 9 are movably connected to each countersunk hole. The side wall of the movable plate 4 has threaded holes 10 corresponding to the bolts 9, and the bolts 9 are threaded into the threaded holes 10. The use of bolts 9 with the mating parts further enhances the stability of triangle 5. After installation, the end of bolt 9 is located within the countersunk hole, thus the bolt 9 and triangle 5 are flush, preventing the bolt 9 from protruding too much and affecting the movement of the knitting needles along the track of triangle 5, resulting in high practicality.

[0029] like Figure 5As shown, the height adjustment assembly includes a lead screw 11 rotatably connected to the side wall of the storage slot 3. The top end of the lead screw 11 passes through the mounting base 1 and is fixedly connected to a wheel 18. At least two threaded sleeves 12 are threadedly connected to the side wall of the lead screw 11. The threaded sleeves 12 are all fixedly connected to the movable plate 4. The side wall of the threaded sleeves 12 is provided with positioning elements.

[0030] Specifically, the threaded engagement between the lead screw 11 and the sleeve 12 is a precision mechanical transmission. High-precision machining allows the lead error to be controlled at the micrometer level, suitable for scenarios requiring precise height adjustment. Pre-tightening the sleeve 12 (e.g., using a double-nut backlash-eliminating structure) eliminates backlash in the threaded pair, preventing "free-spinning" during adjustment and ensuring positional repeatability. When the thread helix angle is less than the friction angle (typically ≤4° for trapezoidal threads), the lead screw 11 has self-locking capability, eliminating the need for additional braking devices after adjustment to the specified height, making it suitable for maintaining vertical loads.

[0031] like Figure 5 As shown, the positioning component includes two positioning plates 13 fixedly connected to the side wall of the screw sleeve 12, and two positioning rods 19 fixedly connected to the side wall of the storage groove 3. The positioning rods 19 pass through the positioning plates 13 and are movably connected to them. The side walls of the positioning plates 13 are all provided with height data reading components.

[0032] like Figure 2 and Figure 5 As shown, the height data reading component includes a support rod 14 fixedly connected to the rear side wall of the positioning plate 13. The rear side wall of the mounting base 1 is provided with a positioning groove 16 corresponding to the support rod 14. The other ends of the two support rods 14 on the same side pass through the positioning groove 16 and are fixedly connected to the same scale pointer 15. The rear side wall of the mounting base 1 is provided with scale lines 17 between the positioning grooves 16.

[0033] During the process of adjusting the height of triangle 5 using lead screw 11, the positioning plate 13 is moved synchronously. The positioning plate 13 can move the scale pointer 15 along the positioning groove 16. At this time, the operator can read the current position of triangle 5 by observing the position of the scale pointer 15 on the scale line 17, thus achieving the effect of fast and accurate adjustment and effectively shortening the downtime of the circular knitting machine.

[0034] The working principle of this utility model is as follows: When installing triangle 5, triangle 5 is directly inserted into groove 7 through T-block 6, and then triangle 5 is pressed down so that T-block 6 is inserted into T-groove 8. At the same time, the countersunk hole corresponds to the screw hole 10. Then, the bolts 9 are tightened one by one for secondary fixing and limiting.

[0035] When the height of triangle 5 needs to be adjusted, the rotating wheel 18 is rotated to drive the lead screw 11 to rotate. The lead screw 11 drives the movable plate 4 to rise and fall through the screw sleeve 12. The movable plate 4 drives triangle 5 to rise and fall. At the same time, the screw sleeve 12 drives the support rod 14 to rise and fall through the positioning plate 13. During the height adjustment process, the scale pointer 15 moves. By reading the position of the scale pointer 15 and the scale line 17, the operator can easily observe the height information of triangle 5 and achieve the purpose of precise and fast adjustment.

[0036] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A height adjustment device for a circular knitting machine triangle, characterized in that: Includes a mounting base (1), which is L-shaped. A limiting groove (2) is provided on the front side wall of the mounting base (1). A storage groove (3) is provided on the side wall of the limiting groove (2). At least two movable plates (4) are slidably connected in the limiting groove (2). A triangle (5) is connected to the side wall of each movable plate (4) through a docking part. A height adjustment component is provided in the storage groove (3). The docking component includes a T-shaped block (6) fixedly connected to the rear side wall of the triangle (5), a groove (7) is provided on the front side wall of the movable plate (4), a T-shaped groove (8) is provided on the bottom surface of the groove (7), and the T-shaped block (6) is adapted to the groove (7) and the T-shaped groove (8); The height adjustment assembly includes a lead screw (11) rotatably connected to the side wall of the storage slot (3). The top end of the lead screw (11) passes through the mounting base (1) and is fixedly connected to a wheel (18). At least two threaded sleeves (12) are threadedly connected to the side wall of the lead screw (11). The threaded sleeves (12) are all fixedly connected to the movable plate (4). The side wall of the threaded sleeves (12) is provided with a positioning element.

2. The height adjustment device for a circular knitting machine triangle according to claim 1, characterized in that: The triangular (5) sidewalls are provided with three countersunk holes, and bolts (9) are movably connected in each countersunk hole. The sidewalls of the movable plate (4) are provided with screw holes (10) corresponding to the bolts (9), and the bolts (9) are threadedly connected to the screw holes (10).

3. The height adjustment device for a circular knitting machine triangle according to claim 1, characterized in that: The positioning component includes two positioning plates (13) fixedly connected to the side wall of the screw sleeve (12). The side wall of the storage groove (3) is fixedly connected to two positioning rods (19). The positioning rods (19) pass through the positioning plates (13) and are movably connected to them. The side walls of the positioning plates (13) are all provided with height data reading components.

4. The height adjustment device for a circular knitting machine triangle according to claim 3, characterized in that: The height data reading component includes a support rod (14) fixedly connected to the rear side wall of the positioning plate (13). The rear side wall of the mounting base (1) is provided with a positioning groove (16) corresponding to the support rod (14). The other ends of the two support rods (14) on the same side pass through the positioning groove (16) and are fixedly connected to the same scale pointer (15). The rear side wall of the mounting base (1) is provided with scale lines (17) between the positioning grooves (16).

5. The height adjustment device for a circular knitting machine triangle according to claim 1, characterized in that: The movable plate (4) is flush with the front side wall of the mounting base (1).

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