Needle plate seat facilitating installation
By setting torsion spring shafts and rollers on the needle plate holder and the flap body, the problem of difficult installation of existing needle plate holders is solved, and a more convenient installation process is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LITTLE SUN TECH DEV CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-04-28
AI Technical Summary
The existing needle plate holder is difficult to install, requiring a high-precision torsion spring to support the small shaft and clamp for fixation, and the limited space makes installation inconvenient.
By setting torsion spring shafts on the needle plate holder body and the flap body, the legs of the torsion springs naturally lock into the needle plate holder and the flap body. Combined with the roller design, this makes installation easier.
The installation process of the needle plate holder has been simplified, the installation difficulty has been reduced, and the installation efficiency has been improved.
Smart Images

Figure CN224173050U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of textile printing and dyeing, and in particular to a needle plate holder that is easy to install. Background Technology
[0002] Stenter machines, setting machines, coating machines, artificial leather machines, flocking machines and other dyeing and finishing machinery all require the use of needle plates. The needle plate holder is a mechanism used to connect the chain and fix the needle plate.
[0003] The existing needle plate holder structure uses a torsion spring on each side of the flap body to open and close the protective cover. The requirements for opening and closing are very high. Moreover, each torsion spring needs to be fixed with two small support shafts, and the legs of the torsion springs also need to be wrapped around the small support shafts. Space is limited, and clamps are needed to tighten it during installation, making installation difficult. Utility Model Content
[0004] The purpose of this invention is to provide a needle plate holder that is easy to install.
[0005] The innovation of this utility model lies in the addition of a torsion spring shaft in this patent. The torsion spring is sleeved on the torsion spring shaft, and the two legs of the torsion spring do not need to be bent and connected. Instead, they are naturally locked in the needle plate seat body and the flip tongue body, making installation easier.
[0006] To achieve the above-mentioned objectives, the technical solution of this utility model is as follows:
[0007] A needle plate holder that is easy to install includes a needle plate holder body and a flap body. The needle plate holder body and the flap body are hinged together by a flap rotation shaft. A protective cover is connected to the flap body. A torsion spring shaft is connected to the needle plate holder body. A torsion spring is sleeved on the torsion spring shaft. The torsion spring has two legs, one of which is locked at the needle plate holder body and the other of which is locked at the flap body.
[0008] Furthermore, a ball bearing shaft is connected to the flapping tongue body, and a roller is provided on the ball bearing shaft. The other support leg is engaged with the roller. The roller makes the support leg engaged with the flapping tongue body more flexible, and the roller can rotate with the support leg.
[0009] Furthermore, there are two torsion springs, and the two torsion springs rotate in opposite directions. This, combined with the rotation of the roller, makes the opening and closing more flexible.
[0010] Furthermore, the torsion spring shaft, the flapping tongue rotating shaft, and the ball bearing shaft are all riveted together at both ends. This facilitates connection.
[0011] Furthermore, the torsion spring is made of carbon spring steel wire. This material has low cost.
[0012] The beneficial effects of this utility model are:
[0013] 1. In this patent, by adding a torsion spring shaft, the torsion spring is sleeved on the torsion spring shaft. The two legs of the torsion spring do not need to be bent and connected, but are naturally locked in the needle plate seat body and the flip tongue body, making installation easier. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model.
[0015] Figure 2 This is an exploded view of the present invention.
[0016] Figure 3 This is a schematic diagram of the existing technology. Detailed Implementation
[0017] The technical solutions in the embodiments of this utility model will now be clearly and completely described with reference to the accompanying drawings.
[0018] Example 1: As Figure 1 , 2 As shown, a needle plate holder that is easy to install includes a needle plate holder body 1 and a flap body 2. The needle plate holder body 1 and the flap body 2 are hinged together by a flap rotation shaft 3. A protective cover 4 is connected to the flap body 2. A torsion spring shaft 5 is connected to the needle plate holder body 1. A torsion spring 6 is sleeved on the torsion spring shaft 5. The torsion spring 6 has two legs 6.1. One leg 6.1 is locked at the needle plate holder body 1 and the other leg 6.1 is locked at the flap body 2. A ball bearing shaft 7 is connected to the flap body 2. A roller 8 is provided on the ball bearing shaft 7. The leg 6.1 located at the flap body 2 is locked at the roller 8.
[0019] There are two torsion springs 6, and the two torsion springs 6 have opposite directions of rotation. The torsion springs 6 are made of carbon spring steel wire. The torsion spring shaft 5, the flapping tongue rotating shaft 3, and the ball bearing shaft 7 are all riveted together at both ends.
[0020] The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
Claims
1. A needle plate holder that is easy to install, comprising a needle plate holder body and a flapping tongue body, wherein the needle plate holder body and the flapping tongue body are hinged together by a flapping tongue rotation shaft, and a protective cover is connected to the flapping tongue body, characterized in that, The needle plate seat body is connected to a torsion spring shaft, and a torsion spring is sleeved on the torsion spring shaft. The torsion spring has two legs, one of which is locked at the needle plate seat body and the other of which is locked at the flap body.
2. The needle plate holder for easy installation according to claim 1, characterized in that, The flapping body is connected to a ball bearing shaft, and a roller is provided on the ball bearing shaft. The other support leg is locked at the roller.
3. The needle plate holder for easy installation according to claim 1, characterized in that, There are two torsion springs, and the two torsion springs have opposite directions of rotation.
4. The needle plate holder for easy installation according to claim 2, characterized in that, The torsion spring shaft, the flapping tongue rotating shaft, and the ball bearing shaft are all riveted together at both ends.
5. The needle plate holder for easy installation according to claim 1, characterized in that, The torsion spring is made of carbon spring steel wire.