A mechanism for preventing the jumping of a spring barrel shaft

By installing a swing assembly and a bearing limiting mechanism below the wire outlet of the spring winding machine, the problem of uneven winding caused by mandrel runout during long-stroke winding was solved, thus improving the product qualification rate.

CN224406335UActive Publication Date: 2026-06-26SHANGHAI HAOFENG MEDICAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI HAOFENG MEDICAL TECH CO LTD
Filing Date
2025-07-09
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In the long-stroke winding process, the existing spring winding machine has excessive spindle runout, which leads to uneven winding and affects product quality.

Method used

An oscillating component is installed below the wire outlet of the spring winding machine. The oscillating block and bearing limit the mandrel, reducing runout and adapting to mandrels of different sizes and specifications.

Benefits of technology

It effectively reduces spindle runout, improves winding uniformity during long-stroke winding, and increases product yield.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of spring winding machine core shaft anti-jumping mechanisms, comprising: bottom plate, swing subassembly is arranged on the bottom plate;The bottom plate below is provided with sliding assembly, drive the swing subassembly moves along the setting direction of the sliding assembly;The swing subassembly is set below silk outlet, the silk outlet moves along with the vertical direction of the sliding assembly, and contact with the swing subassembly, to limit the core shaft of the silk outlet.By swing subassembly is arranged below silk outlet, make core shaft and swing subassembly contact, when winding spring, it can swing back and forth to adapt to the core shaft of different size specifications on spring winding machine, and limit the core shaft by first bearing and second bearing, reduce jumping, solve the problem that uneven winding is caused by core shaft jumping in long-stroke winding, improve the qualified rate of product.
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Description

Technical Field

[0001] This utility model relates to the field of spring winding machine technology, and in particular to a spring winding machine core shaft anti-jumping mechanism. Background Technology

[0002] Existing spring winding machines rely on auxiliary guide wheels on both sides of the wire exit position and clamps at both ends to tension the mandrel and reduce mandrel runout. This structure is sufficient for short-stroke winding. However, for long-stroke winding, the mandrel is longer and the clamps have a larger span, causing runout to increase when the winding reaches the middle position. Excessive mandrel runout can lead to uneven winding, resulting in the entire product being defective. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-jumping mechanism for a coiled spring core shaft.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a spring winding mechanism anti-jumping mechanism, comprising:

[0005] A base plate, on which a swing assembly is provided;

[0006] A sliding component is provided below the base plate, which drives the swing component to move along the set direction of the sliding component;

[0007] The oscillating component is positioned below the yarn outlet. The yarn outlet moves in a direction perpendicular to the sliding component and contacts the oscillating component to limit the mandrel of the yarn outlet.

[0008] As a further description of the above technical solution: the swing assembly includes a fixing plate, which is perpendicular to the base plate and has a protrusion on its upper surface.

[0009] As a further description of the above technical solution: a slot is provided on the protrusion of the fixing plate, and a swing block is provided on the slot. The swing block is installed on the slot through a first rotating shaft.

[0010] As a further description of the above technical solution: the swing block includes an extension and a bending portion, and the first rotating shaft passes through the extension.

[0011] As a further description of the above technical solution: the fixed plate and the bent portion of the swing block are respectively provided with screws, and a tension spring is provided between the two screws, so that the swing block can rotate and reset along the first rotating axis through the tension spring.

[0012] As a further description of the above technical solution: a vertical rod is provided on the extension of the swing block, and a bearing seat is provided on the vertical rod.

[0013] As a further description of the above technical solution: the bearing housing is provided with two second rotating shafts, each of the second rotating shafts is provided with two first bearings, and the other second rotating shaft is provided with one second bearing, the second bearing being located between the two first bearings.

[0014] As a further description of the above technical solution: the mandrel of the wire outlet is wound between the two first bearings and contacts the second bearing.

[0015] As a further description of the above technical solution: the sliding assembly includes a slider and a slide rail, the slider is installed below the base plate, and a locking handle is provided on one side of the slider.

[0016] As a further description of the above technical solution: a baffle is provided on one side of the wire outlet.

[0017] The above technical solution has the following advantages or beneficial effects:

[0018] By setting a swing component below the wire outlet, the mandrel can contact the swing component, allowing it to swing back and forth to adapt to mandrels of different sizes and specifications on the spring winding machine during winding. The first and second bearings limit the mandrel, reducing runout and solving the problem of uneven winding caused by mandrel runout during long-stroke winding, thus improving the product qualification rate. Attached Figure Description

[0019] Figure 1 This is a perspective view of the anti-jumping mechanism proposed in this utility model;

[0020] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0021] Figure 3 This is a top view of the anti-jumping mechanism proposed in this utility model.

[0022] Legend:

[0023] 1. Base plate; 2. Thread outlet; 3. Fixing plate; 4. Swing block; 5. First rotating shaft; 6. Screw; 7. Tension spring; 8. Upright rod; 9. Bearing seat; 10. Second rotating shaft; 11. First bearing; 12. Second bearing; 13. Slider; 14. Slide rail; 15. Locking handle; 16. Baffle. Detailed Implementation

[0024] 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.

[0025] Reference Figures 1-3 An embodiment of this utility model provides a spring winding machine core shaft anti-jumping mechanism, comprising: a base plate 1, on which a swing component is disposed; a sliding component is disposed below the base plate 1, driving the swing component to move along the setting direction of the sliding component; the swing component is disposed below the wire outlet 2, the wire outlet 2 moves in a direction perpendicular to the sliding component and contacts the swing component, thereby limiting the core shaft of the wire outlet 2.

[0026] In this embodiment, the position is adjusted by the sliding component, so that the base plate 1 drives the swing component to move. The wire outlet 2 on the spring winding machine outputs the mandrel to be wound. By contacting the swing component, the mandrel is limited, reducing runout and solving the problem of uneven spring winding caused by mandrel runout in long-stroke winding. This improves the product qualification rate. The swing component can swing back and forth to adapt to mandrels of different sizes and specifications on the spring winding machine, making it more adaptable.

[0027] The swing assembly includes a fixed plate 3, which is perpendicular to the base plate 1 and has a protrusion on its upper surface.

[0028] In this embodiment, the fixing plate 3 is vertically installed on the upper end surface of the base plate 1, and the upper end surface of the fixing plate 3 extends upward to form a protrusion for mounting the swing block 4.

[0029] The protrusion of the fixed plate 3 has a slot, and a swing block 4 is provided on the slot. The swing block 4 is installed on the slot through the first rotating shaft 5.

[0030] In this embodiment, the swing block 4 is disposed in the slot of the fixed plate 3, and the first rotating shaft 5 passes through the swing block 4 from the side of the fixed plate 3 and extends to the other side, so that the swing block 4 rotates along the first rotating shaft 5.

[0031] The swing block 4 includes an extension and a bending part, and the first rotating shaft 5 passes through the extension.

[0032] In this embodiment, the swing block 4 is designed with an extension and a bend, so that the swing block 4 forms an angle. The extension is located at the slot, and the bend is located on the outside of the fixed plate 3, with a gap between it and the fixed plate. When swinging occurs, the tension spring 7 is pulled.

[0033] Screws 6 are provided on the bent parts of the fixed plate 3 and the swing block 4 respectively, and a tension spring 7 is provided between the two screws 6. The swing block 4 is rotated and reset along the first rotating shaft 5 by the tension spring 7.

[0034] In this embodiment, screws 6 are provided on the same side of the protrusion of the fixed plate 3 and the bent part of the swing block 4. A tension spring 7 is provided between the two screws 6. When the swing block 4 swings, the distance between the two screws 6 changes, causing the tension spring 7 to be stretched or bent, so as to perform subsequent elastic reset.

[0035] An upright rod 8 is provided on the extension of the swing block 4, and a bearing seat 9 is provided on the upright rod 8. Two second rotating shafts 10 are provided on the bearing seat 9. Two first bearings 11 are provided on one of the second rotating shafts 10, and a second bearing 12 is provided on the other second rotating shaft 10. The second bearing 12 is located between the two first bearings 11.

[0036] In this embodiment, two parallel second rotating shafts 10 are provided on the bearing housing 9, and the two second rotating shafts 10 are set at different heights. Two first bearings 11 are provided on the second rotating shaft 10 near the wire outlet 2, and a second bearing 12 is provided on the other. The second bearing 12 is located between the two first bearings 11 to form a triangular structure. The mandrel of the wire outlet 2 is wound around the two first bearings 11 and contacts the second bearing 12 to limit and transport the mandrel.

[0037] The sliding assembly includes a slider 13 and a slide rail 14. The slider 13 is mounted below the base plate 1, and a locking handle 15 is provided on one side of the slider 13.

[0038] In this embodiment, the position of the swing component is adjusted by adjusting the relative position of the slider 13 and the slide rail 14. A locking handle 15 is provided on the slider 13. After the adjustment is completed, the position of the slider 13 is locked and fixed to prevent displacement.

[0039] A baffle 16 is provided on one side of the wire outlet 2.

[0040] In this embodiment, when the wire outlet 2 moves, the baffle 16 contacts the upright rod 8, causing the upright rod 8 to tilt. After the wire outlet 2 moves through, the upright rod 8 slides along the inclined surface of the baffle 16 and then, relying on the tension spring 7, pulls the swing block 4 to reset.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spring-loaded mechanism for preventing the shaft from jumping, characterized in that, include: A base plate (1) is provided with a swing assembly; A sliding component is provided below the base plate (1), which drives the swing component to move along the setting direction of the sliding component; The swing assembly is located below the wire outlet (2). The wire outlet (2) moves in a direction perpendicular to the sliding assembly and contacts the swing assembly to limit the mandrel of the wire outlet (2).

2. The anti-jumping mechanism according to claim 1, characterized in that: The swing assembly includes a fixed plate (3), which is perpendicular to the base plate (1) and has a protrusion on its upper surface.

3. The anti-jumping mechanism according to claim 2, characterized in that: The protrusion of the fixing plate (3) has a slot, and a swing block (4) is provided on the slot. The swing block (4) is installed on the slot through the first rotating shaft (5).

4. The anti-jumping mechanism according to claim 3, characterized in that: The swing block (4) includes an extension and a bend, and the first rotating shaft (5) passes through the extension.

5. The anti-jumping mechanism according to claim 4, characterized in that: The fixed plate (3) and the swing block (4) are respectively provided with screws (6), and a tension spring (7) is provided between the two screws (6). The swing block (4) is rotated and reset along the first rotating shaft (5) by means of the tension spring (7).

6. The anti-jumping mechanism according to claim 3, characterized in that: A vertical rod (8) is provided on the extension of the swing block (4), and a bearing seat (9) is provided on the vertical rod (8).

7. The anti-jumping mechanism according to claim 6, characterized in that: The bearing housing (9) is provided with two second rotating shafts (10), each of the second rotating shafts (10) is provided with two first bearings (11), and the other second rotating shaft (10) is provided with a second bearing (12), the second bearing (12) being located between the two first bearings (11).

8. The anti-jumping mechanism according to claim 7, characterized in that: The mandrel of the wire outlet (2) is wound between the two first bearings (11) and contacts the second bearing (12).

9. The anti-jumping mechanism according to claim 1, characterized in that: The sliding assembly includes a slider (13) and a slide rail (14). The slider (13) is mounted below the base plate (1), and a locking handle (15) is provided on one side of the slider (13).

10. The anti-jumping mechanism according to claim 1, characterized in that: A baffle (16) is provided on one side of the wire outlet (2).