Synchronous fastening device for multi-cavity spinning assembly
By designing a synchronous fastening device for multi-cavity spinning components, the active and driven gears mesh to drive the wrench to rotate synchronously and fix the screws, solving the problems of cumbersome disassembly and assembly and uneven torque of spinning components, achieving rapid and uniform fastening of spinning components, and reducing production abnormalities.
Patent Information
- Application Number
- CN202520304419.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-25
AI Technical Summary
The screws fixing the spinning components in existing spinning equipment are cumbersome to install and remove, and the torque is uneven, which leads to production abnormalities such as slurry leakage, filament drift, and monofilament breakage.
A synchronous fastening device for a multi-cavity spinning assembly is designed. The screw is fixed by the synchronous rotation of a wrench through the meshing of the driving gear and the driven gear, so as to achieve uniform tightening of the screw.
It enables rapid and uniform fastening of spinning components, reducing installation difficulties and production anomalies.
Smart Images

Figure CN223734764U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spinning equipment technology, and in particular to a synchronous fastening device for multi-cavity spinning components. Background Technology
[0002] In spinning equipment, the spinning assembly is installed on the spinning box by fixing screws. The melt enters the spinning assembly from the melt distribution pipe of the spinning box. After being evenly distributed by the distribution plate, impurities are removed by the filter device. Finally, the melt is extruded through the spinneret holes of the spinneret to form a fine stream of fibers.
[0003] During the production process, the spinning assembly needs to be disassembled and replaced or cleaned for each monthly cycle project and abnormal filament breakage. Currently, the disassembly and assembly of the spinning assembly is done by rotating each individual fixing screw in turn. Since there are many spinning assemblies in the factory, the disassembly and assembly becomes tedious and troublesome. In particular, when installing the spinning assembly, the torque of each fixing screw may be different. Uneven torque may affect the spinning assembly, causing issues such as slurry leakage, filament drift, and monofilament breakage. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a multi-cavity spinning assembly synchronous fastening device with a simple structure that can simultaneously tighten the fixing screws and the torque is more uniform. This reduces the difficulty of installation and production abnormalities caused by uneven force on the fixing screws of the spinning assembly, which leads to poor gasket sealing.
[0005] This invention is achieved as follows: a synchronous fastening device for a multi-cavity spinning assembly, comprising...
[0006] A shell, with a circular structure;
[0007] A drive gear is disposed inside the housing, and its drive shaft passes through the upper surface of the housing;
[0008] Four driven gears are disposed inside the housing, evenly distributed on the edge of the driving gear, and all mesh with the driving gear. The upper surface of each driven gear is disposed on the housing through a driven shaft, and the lower surface of each driven gear is provided with an internal hexagonal groove.
[0009] A force-applying rod, with a sleeve at one end and fitted outside the drive shaft;
[0010] The four-hand wrench has a hexagonal structure at both the top and bottom, with one end fitted into the internal hexagonal groove of the driven gear.
[0011] Furthermore, the upper surface of the housing is provided with pressure markings along its outer edge.
[0012] Furthermore, the other end of the force-adding rod is provided with a handle, and the handle has anti-slip texture.
[0013] The advantages of this invention are as follows: By sleeve-fitting one end of the force-applying rod outside the drive shaft, and rotating the force-applying rod to rotate the drive gear, the drive gear drives four driven gears to rotate synchronously. These driven gears then drive a wrench to rotate, thereby synchronously rotating the fixing screws on the spinning assembly, achieving synchronous tightening. This invention provides a simple structure for synchronously tightening multi-cavity spinning assemblies, enabling simultaneous tightening of fixing screws with more uniform torque. It reduces the difficulty of installation and production abnormalities caused by uneven force on the fixing screws of the spinning assembly, which can lead to poor gasket sealing. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0015] Figure 1 This is a schematic diagram of the structure of a synchronous fastening device for a multi-cavity spinning assembly according to the present invention.
[0016] Figure 2 This is a schematic diagram of the internal structure of a synchronous fastening device for a multi-cavity spinning assembly according to the present invention.
[0017] Figure 3 This is a schematic diagram of the usage state of a synchronous fastening device for a multi-cavity spinning assembly according to this utility model.
[0018] The reference numerals in the attached diagrams are as follows: Fastening device 100, housing 1, pressure scale 11, driving gear 2, driving shaft 21, driven gear 3, driven shaft 31, internal hexagonal groove 32, force lever 4, sleeve 41, handle 42, wrench 5, spinning assembly 200, fixing screw 201. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0020] like Figures 1 to 3 As shown, a multi-cavity spinning assembly synchronous fastening device 100 includes a housing 1, a driving gear 2, four driven gears 3, a force-applying rod 4, and four wrenches 5.
[0021] The housing 1 has a circular structure; the upper surface of the housing 1 is provided with a pressure scale 11 along the outer edge, which can be used to indicate the applied pressure; the driving gear 2 is disposed in the housing 1, and the driving shaft 21 of the driving gear 2 passes through the upper surface of the housing 1; the driven gears 3 are disposed in the housing 1, evenly distributed on the edge of the driving gear 2, and all mesh with the driving gear 2; the upper surface of each driven gear 3 is disposed on the housing 1 through a driven shaft 31, and the lower surface of each driven gear 3 is provided with an internal hexagonal groove 32; one end of the force-applying rod 4 is provided with a sleeve 41 and sleeved outside the driving shaft 21; the other end of the force-applying rod 4 is provided with a handle 42, which has anti-slip texture to facilitate the application of force and prevent slippage; the wrench 5 has a hexagonal structure at both ends, one end of which is sleeved in the internal hexagonal groove 32 of the driven gear 3, and the other end is inserted into the internal hexagonal groove of the fixing screw 201 of the spinning assembly 200.
[0022] In use, the sleeve 41 at one end of the force-applying rod 4 is fitted onto the outside of the drive shaft 21. The upper ends of the four wrenches 5 are respectively fitted into the internal hexagonal grooves 32 of the driven gears 3, and the lower ends are inserted into the internal hexagonal grooves of the fixing screws 201 on the spinning assembly 200. By rotating the force-applying rod 4, the drive gear 2 rotates, which drives the four driven gears 3 to rotate synchronously. The driven gears 3 drive the wrenches 5 to rotate, thereby synchronously driving the fixing screws 201 on the spinning assembly 200 to rotate synchronously, thus achieving synchronous tightening. This utility model provides a multi-cavity spinning assembly synchronous tightening device 100 with a simple structure that can simultaneously tighten the fixing screws 201 and provide more uniform torque. It reduces the difficulty of installation and production abnormalities caused by uneven force on the fixing screws 201 of the spinning assembly 200, which can lead to poor gasket sealing.
[0023] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.
Claims
1. A multi-cavity spin pack simultaneous fastening device characterized by: Comprising a housing, in a circular structure; a driving gear, arranged in the housing, with a driving shaft penetrating the upper surface of the housing; four driven gears, arranged in the housing, evenly distributed at the edge of the driving gear, and each meshing with the driving gear, the upper surface of each driven gear being arranged in the housing through a driven shaft, and the lower surface of each driven gear being provided with an internal hexagonal groove; a force applying rod, with a sleeve at one end and sleeved outside the driving shaft; four wrenches, with hexagonal structures at the upper and lower ends, and with one end sleeved in the internal hexagonal groove of the driven gear.
2. A simultaneous fastening device for a multi-cavity spin pack according to claim 1, wherein: The upper surface of the housing is provided with a pressure scale along the outer edge.
3. A simultaneous fastening device for a multi-cavity spin pack according to claim 1 wherein: The other end of the force applying rod is provided with a handle with anti-slip patterns.