Knitting machine dial adjusting device with limiting function

By introducing a limiting mechanism into the needle plate adjustment device of a circular knitting machine, the problem of needle plate instability caused by yarn slippage of the lead screw was solved, thereby improving the stability of the needle plate and extending the service life of the lead screw.

CN224494498UActive Publication Date: 2026-07-14SHANTOU LIANXINGFA WEAVING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANTOU LIANXINGFA WEAVING CO LTD
Filing Date
2025-08-16
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In existing circular knitting machine needle plate adjustment devices, the lead screw is prone to slippage when bearing the transmission force of the needle plate, resulting in needle plate instability.

Method used

A needle plate adjustment device for a circular knitting machine with a limiting function was designed. By setting a limiting mechanism on the connecting rod, the position of the needle plate is limited by the toothed engagement of the clamping plate and the toothed plate, and it cooperates with the threaded fixation of the lead screw to reduce the wear of the lead screw.

Benefits of technology

It improves the working stability of the needle plate, extends the service life of the lead screw, reduces the supporting force on the connecting rod and needle plate, and enhances the overall stability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of knitting machine, specifically is a kind of knitted circular knitting machine dial adjusting device with limiting function, including fixed frame, the bottom of the fixed frame is equipped with sliding slot, the inner chamber sliding connection of sliding slot has connecting rod, the bottom fixed mounting of connecting rod has needle disc, the inner wall rotationally connected of fixed frame has screw rod, the surface of screw rod is connected with the inner wall screw thread of connecting rod, the inner wall of connecting rod is provided with limiting mechanism, the limiting mechanism includes toothed plate, and the toothed plate is fixedly installed in the bottom of fixed frame;By setting limiting mechanism, the tooth of clamping plate and toothed plate contact, and then the position of needle disc is limited, can be mutually cooperated with the thread fixing of screw rod, when the wear of screw rod appears, guarantee the position fixed of needle disc, then increase the stability of needle disc work, reduce the support force of connecting rod and needle disc of screw rod at the same time when working, increase the service life of screw rod.
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Description

Technical Field

[0001] This utility model relates to the field of knitting machine technology, specifically a needle plate adjustment device for a circular knitting machine with a limiting function. Background Technology

[0002] A circular knitting machine is a machine used for weft knitting. It is usually used to knit double-sided sheet fabrics such as collars and hems, or single-sided tubular fabrics such as shaped woolen sweaters. Most of the fabrics have fine textures. There are circular knitting machines and circular sock machines. The needle bed of the circular knitting machine is cylindrical or disc-shaped. It is mainly used to process knitted greige fabrics with various structures.

[0003] The needle plate adjustment device usually consists of a lead screw, a connecting rod, and a fixed frame. By rotating the lead screw, the connecting rod can be moved within the cavity of the fixed frame, thereby adjusting the position of the needle plate. After adjustment, when the needle plate is working, the force of the needle plate transmission is generally borne by the lead screw, which can easily cause the lead screw to slip, resulting in instability of the needle plate. Utility Model Content

[0004] To overcome the shortcomings of existing technology, when the needle plate is working, the force of the needle plate transmission is generally borne by the lead screw, which makes the lead screw prone to slippage and causes the needle plate to be unstable. This utility model proposes a needle plate adjustment device for a circular knitting machine with a limiting function.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a needle plate adjustment device for a circular knitting machine with a limiting function, including a fixed frame, a sliding groove is provided at the bottom of the fixed frame, a connecting rod is slidably connected to the inner cavity of the sliding groove, a needle plate is fixedly installed at the bottom of the connecting rod, a lead screw is rotatably connected to the inner wall of the fixed frame, the surface of the lead screw is threadedly connected to the inner wall of the connecting rod, and a limiting mechanism is provided on the inner wall of the connecting rod;

[0006] The limiting mechanism includes a toothed plate, which is fixedly installed at the bottom of the fixed frame. There are two toothed plates. The surface of the connecting rod has a sliding hole. A retaining plate is slidably connected to the inner cavity of the sliding hole. The surface of the retaining plate is used in conjunction with the teeth of the toothed plate. A support rod is fixedly installed on the surface of the retaining plate. A triangular block is fixedly installed at one end of the support rod. A push rod is threaded to the inner wall of one side of the connecting rod. A frustum is fixedly installed at one end of the push rod. The surface of the frustum is used in conjunction with the inclined surface of the triangular block.

[0007] Preferably, the inner wall of the sliding hole is provided with a guide groove, and a guide block is fixedly installed on one side of the card plate, and the inner cavity of the guide groove is slidably connected to the surface of the guide block.

[0008] Preferably, a spring is fixedly installed on the inner wall of the guide groove, and one end of the spring is fixedly connected to the surface of the guide block.

[0009] Preferably, a top block is fixedly installed at one end of the connecting rod, and the top block is used in conjunction with the surface of the push rod.

[0010] Preferably, one of the toothed plates has a scale on its surface, and a pointer is fixedly mounted on the surface of the connecting rod, the pointer being used in conjunction with the scale.

[0011] Preferably, a triangular plate is fixedly installed on the surface of both toothed plates, and the bottom of the surface fixing frame of the triangular plate is fixedly connected.

[0012] Preferably, the inner wall of the fixed frame is provided with a support groove, and a support plate is fixedly installed on the surface of the connecting rod, with the surface of the support plate slidably connected to the inner cavity of the support groove.

[0013] The advantages of this utility model are:

[0014] This invention, by setting a limiting mechanism, allows the teeth of the clamping plate to contact with the toothed plate, thereby limiting the position of the needle disc. It can cooperate with the threaded fixing of the lead screw to ensure the position of the needle disc is fixed when the lead screw wears, thus increasing the stability of the needle disc's operation. At the same time, it reduces the supporting force of the lead screw on the connecting rod and the needle disc during operation, increasing the service life of the lead screw. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0017] Figure 2 This is a schematic diagram of the bottom structure of the fixing frame of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a cross-sectional view of the connecting rod of this utility model;

[0020] Figure 5 This utility model Figure 4 Enlarged view of point B in the middle;

[0021] Figure 6 This is an exploded view of the support plate and fixing frame of this utility model.

[0022] In the diagram: 1. Fixed frame; 2. Sliding groove; 3. Connecting rod; 4. Pin plate; 5. Lead screw; 6. Limiting mechanism; 601. Toothed plate; 602. Sliding hole; 603. Clamping plate; 604. Support rod; 605. Triangular block; 606. Push rod; 607. Frustum; 7. Guide groove; 8. Guide block; 9. Spring; 10. Top block; 11. Scale; 12. Pointer; 13. Triangular plate; 14. Support groove; 15. Support plate. Detailed Implementation

[0023] 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 scope of protection of the present utility model.

[0024] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0025] This application discloses a needle plate adjustment device for a circular knitting machine with a limiting function. (Refer to...) Figures 1 to 6 A needle plate adjustment device for a circular knitting machine with a limiting function includes a fixed frame 1, a sliding groove 2 at the bottom of the fixed frame 1, a connecting rod 3 slidably connected to the inner cavity of the sliding groove 2, a needle plate 4 fixedly installed at the bottom of the connecting rod 3, a lead screw 5 rotatably connected to the inner wall of the fixed frame 1, the surface of the lead screw 5 being threadedly connected to the inner wall of the connecting rod 3, and a limiting mechanism 6 provided on the inner wall of the connecting rod 3.

[0026] The limiting mechanism 6 includes a toothed plate 601, which is fixedly installed at the bottom of the fixed frame 1. There are two toothed plates 601. A sliding hole 602 is opened on the surface of the connecting rod 3. A retaining plate 603 is slidably connected to the inner cavity of the sliding hole 602. The surface of the retaining plate 603 is used to cooperate with the teeth of the toothed plate 601. A support rod 604 is fixedly installed on the surface of the retaining plate 603. A triangular block 605 is fixedly installed at one end of the support rod 604. A push rod 606 is threadedly connected to the inner wall of one side of the connecting rod 3. A frustum 607 is fixedly installed at one end of the push rod 606. The surface of the frustum 607 is used to cooperate with the inclined surface of the triangular block 605.

[0027] Reference Figure 5The inner wall of the sliding hole 602 is provided with a guide groove 7, and a guide block 8 is fixedly installed on one side of the card plate 603. The inner cavity of the guide groove 7 is slidably connected to the surface of the guide block 8. Through the slidable connection between the guide groove 7 and the guide block 8, the movement of the card plate 603 can be guided, so that the card plate 603 can move laterally.

[0028] Reference Figure 5 A spring 9 is fixedly installed on the inner wall of the guide groove 7. One end of the spring 9 is fixedly connected to the surface of the guide block 8. By setting the spring 9, when the cone 607 stops pressing the triangular block 605, the reaction force of the spring 9 can be used to reset the clamping plate 603, so that the clamping plate 603 can re-enter the inner cavity of the sliding hole 602.

[0029] Reference Figure 4 A top block 10 is fixedly installed at one end of the connecting rod 3. The top block 10 is used in conjunction with the surface of the push rod 606. By setting the top block 10, the movement distance of the push rod 606 pushing the cone 607 can be limited, and the excessive squeezing of the toothed plate 601 by the clamping plate 603 can be avoided.

[0030] Reference Figure 3 One of the toothed plates 601 has a scale 11 on its surface, and a pointer 12 is fixedly installed on the surface of the connecting rod 3. The pointer 12 works in conjunction with the scale 11. Through the cooperation of the scale 11 and the pointer 12, the user can easily observe the position of the needle plate 4 after adjustment, thereby ensuring the accuracy of the adjustment.

[0031] Reference Figure 1 and Figure 3 Triangle plates 13 are fixedly installed on the surfaces of both toothed plates 601. The bottom of the surface fixing frame 1 of the triangle plate 13 is fixedly connected. By setting the triangle plate 13, the toothed plates 601 can be supported. When the clamping plate 603 squeezes and limits the toothed plates 601, the deformation of the toothed plates 601 is reduced by the support of the triangle plate 13.

[0032] Reference Figure 6 The inner wall of the fixed frame 1 is provided with a support groove 14, and a support plate 15 is fixedly installed on the surface of the connecting rod 3. The surface of the support plate 15 is slidably connected to the inner cavity of the support groove 14. Through the slidable connection between the support groove 14 and the support plate 15, the movement of the connecting rod 3 can be guided, and the deflection of the connecting rod 3 can be avoided.

[0033] Working principle: The fixed frame 1 and the sliding groove 2 support the connecting rod 3, thereby supporting the needle plate 4. When adjusting the position of the needle plate 4, rotating the lead screw 5, which is threadedly connected to the connecting rod 3, causes the connecting rod 3 to slide within the sliding groove 2, thus adjusting the position of the needle plate 4. After adjustment, rotating the push rod 606 pushes the cone 607 towards the triangular block 605. The inclined plane compresses the cone, forcing the triangular block to... Block 605 pushes the support rod 604 to move outward of the sliding hole 602, causing the clamping plate 603 to move out of the inner cavity of the sliding hole 602, thereby making the clamping plate 603 contact with the teeth of the toothed plate 601, thus limiting the position of the needle plate 4. It can cooperate with the threaded fixing of the lead screw 5 to ensure the position of the needle plate 4 is fixed when the lead screw 5 wears, thereby increasing the working stability of the needle plate 4. At the same time, it reduces the supporting force of the lead screw 5 on the connecting rod 3 and the needle plate 4 during operation, and increases the service life of the lead screw 5.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A needle plate adjustment device for a circular knitting machine with a limiting function, characterized in that: The system includes a fixed frame (1), a sliding groove (2) is provided at the bottom of the fixed frame (1), a connecting rod (3) is slidably connected to the inner cavity of the sliding groove (2), a needle plate (4) is fixedly installed at the bottom of the connecting rod (3), a lead screw (5) is rotatably connected to the inner wall of the fixed frame (1), the surface of the lead screw (5) is threadedly connected to the inner wall of the connecting rod (3), and a limit mechanism (6) is provided on the inner wall of the connecting rod (3). The limiting mechanism (6) includes a toothed plate (601), which is fixedly installed at the bottom of the fixed frame (1). There are two toothed plates (601). The surface of the connecting rod (3) is provided with a sliding hole (602). A retaining plate (603) is slidably connected to the inner cavity of the sliding hole (602). The surface of the retaining plate (603) is used in conjunction with the teeth of the toothed plate (601). A support rod (604) is fixedly installed on the surface of the retaining plate (603). A triangular block (605) is fixedly installed at one end of the support rod (604). A push rod (606) is threadedly connected to the inner wall of one side of the connecting rod (3). A frustum (607) is fixedly installed at one end of the push rod (606). The surface of the frustum (607) is used in conjunction with the inclined surface of the triangular block (605).

2. The needle plate adjustment device for a circular knitting machine with a limiting function according to claim 1, characterized in that: The inner wall of the sliding hole (602) is provided with a guide groove (7), and a guide block (8) is fixedly installed on one side of the card plate (603). The inner cavity of the guide groove (7) is slidably connected to the surface of the guide block (8).

3. The needle plate adjustment device for a circular knitting machine with a limiting function according to claim 2, characterized in that: A spring (9) is fixedly installed on the inner wall of the guide groove (7), and one end of the spring (9) is fixedly connected to the surface of the guide block (8).

4. The needle plate adjustment device for a circular knitting machine with a limiting function according to claim 1, characterized in that: One end of the connecting rod (3) is fixedly installed with a top block (10), which is used in conjunction with the surface of the push rod (606).

5. A needle plate adjustment device for a circular knitting machine with a limiting function according to claim 1, characterized in that: One of the toothed plates (601) has a scale (11) on its surface, and a pointer (12) is fixedly installed on the surface of the connecting rod (3). The pointer (12) is used in conjunction with the scale (11).

6. The needle plate adjustment device for a circular knitting machine with a limiting function according to claim 1, characterized in that: Triangle plates (13) are fixedly installed on the surfaces of both toothed plates (601), and the bottom of the surface fixing frame (1) of the triangle plates (13) is fixedly connected.

7. A needle plate adjustment device for a circular knitting machine with a limiting function according to claim 1, characterized in that: The inner wall of the fixed frame (1) is provided with a support groove (14), and a support plate (15) is fixedly installed on the surface of the connecting rod (3). The surface of the support plate (15) is slidably connected to the inner cavity of the support groove (14).