WO2018001118A1

WO2018001118A1 - Variable-pitch material conveyor apparatus

Info

Publication number: WO2018001118A1
Application number: PCT/CN2017/088559
Authority: WO
Inventors: 方安江; 李大柱; 谢飞
Original assignee: 黄山富田精工制造有限公司
Priority date: 2016-06-29
Filing date: 2017-06-16
Publication date: 2018-01-04
Also published as: CN106151385A; CN106151385B

Abstract

A variable-pitch material conveyor apparatus, comprising a driveshaft (1) connected to a drive source, n noncircular gear sets (2), n columnar gear sets (3), a static shaft (4), and n mutually independent rotating components (5). The noncircular gear sets (2) are provided with first active gears (21) and first passive gears (22) meshed with each other; the columnar gear sets (3) are provided with second active gears (31) and second passive gears (32) meshed with each other. The first active gears (21) are fixed on the driveshaft (1). The difference in the phase angles of adjacent first active gears (21) is 360°/n. Mounted on the static shaft (4) are the first passive gears (22) and the second active gears (31) that can be driven by the first passive gears (22) into synchronous rotation. The second passive gears (32) are correspondingly connected to the rotating components (5). The conveyor apparatus has the advantages of inexpensiveness, high transmission efficiency, great rigidity, and structural compactness, in addition, a separated design is employed for a variable speed transmission component and the rotating components, and standardized design can be implemented for the variable-pitch material conveyor apparatus, thus implementing quick size changing for a product and reducing equipment manufacturing costs.

Description

Material variable pitch conveying device

Technical field

The invention belongs to the field of sanitary product processing equipment, and in particular relates to a material variable pitch conveying device for an absorbent article.

Background technique

With the development of society, people's living standards have been continuously improved, and absorbent articles have been widely used. In the hydration production of diapers, diapers, pull-on pants, and sanitary napkins, it is often encountered that the products or materials such as cotton core layer, small bag stickers, buckles, etc. are conveyed at different intervals, and the conventional device is utilized and rotated. The eccentric shifting guide of the shaft changes the conveying speed of the conveying member, thereby realizing the variable pitch conveying of the material. However, when the device needs to be coded, the entire device needs to be replaced, and the disassembly and assembly process is very cumbersome, time-consuming and laborious, and inevitably increases the manufacturing cost of the device.

Summary of the invention

In view of this, the present invention provides a material variable pitch conveying device, which solves the problem that the prior device has a long recoding time and a high manufacturing cost.

The technical solution adopted by the present invention to solve the above technical problem is: a material variable pitch conveying device for converting a constant speed input into n variable speed outputs, including a driving shaft connected to a driving source, and n non-circular gear pairs. , n cylindrical gear pairs, static shafts, and n independent rotating parts.

Wherein, the non-circular gear pair has a first driving wheel and a first driven wheel that mesh with each other, and the cylindrical gear pair has a second driving wheel and a second driven wheel that mesh with each other. The first driving wheel is fixed on the driving shaft, and the phase angles of the adjacent first driving wheels are different by 360°/n. A first driven wheel is mounted on the static shaft, and a second driving wheel that can be synchronously rotated by the first driven wheel. The second driven wheel is connected to the rotating component; the aforementioned n≥1.

As a further improvement of the present invention, the above n ≥ 2, and each non-circular gear pair has the same Section curve shape. Further, the material variable pitch conveying device further includes a material holding member fixed to the rotating member. The device converts a constant speed input into n shifting outputs through a non-circular gear pair and a spur gear pair, and the n shifting outputs respectively drive n rotating parts independent of each other, and n material holding parts fixed via the rotating parts, Achieve variable pitch transport of materials. The material is picked up at the material receiving zone at a first transfer speed and released at a second transfer speed in the material release zone, the first transfer speed being different from the second transfer speed.

Further, the first driven wheel and the static shaft maintain a relative rotational relationship, and each of the first driven wheels outputs a shifting motion law, and the phase angles of the adjacent first driven wheels are different by 360°/n. The first driven wheel is fixed to the second driving wheel of the cylindrical gear pair.

In order to facilitate the installation, an identification structure for marking the initial assembly position of the gear is further disposed on the n non-circular gear pairs, and the identification structure may be disposed on the first driving wheel and/or the first driven wheel.

In order to reduce the escape time of the device, the shifting transmission component of the present invention is composed of the n non-circular gear pairs and the second driving wheels of the n spur gear pairs, and the second driven wheel and the rotating component of the n spur gear pairs and The material holding member constitutes a rotary conveying member in a separate design. Specifically, the first driving wheel, the first driven wheel, the second driving wheel and the second driven wheel are detachably connected. Further, the above material may be any one of raw materials, semi-finished products or finished products in the sanitary article.

The variable pitch conveying device further includes a steering structure that changes the direction of the material during the variable pitch conveying process. The steering structure is prior art. For details, refer to the Chinese authorization bulletin number CN 1178828C, which is not described herein.

Compared with the prior art, the invention has the following advantages:

The invention has the advantages of low cost, high transmission efficiency, good rigidity and compact structure. In addition, the variable speed transmission component and the rotary transmission component are separated, and the standardized design of the material variable pitch conveying device can be realized, thereby realizing rapid product code change. Therefore, the cumbersome work of replacing the entire device is omitted, and the manufacturing cost of the device is saved. The invention completely changes the common problems faced by the industry at present, such as difficulty in designing the code, long cycle and high cost, and has the advantages of simple structure, convenient code change and low manufacturing cost, and meets the actual production demand.

DRAWINGS

Figure 1 is a perspective view of the present invention.

2 is a schematic view showing the structure of the second driven wheel of the present invention.

Figure 3 is a schematic illustration of the initial position of four non-circular gear pairs.

Figure 4 is an assembled view of four non-circular gear pairs.

detailed description

The invention will now be described with reference to the drawings and specific embodiments thereof.

Embodiment,

Referring to Figures 1 to 4 together, a material variable pitch conveying device includes a drive shaft 1 connected to a drive source, four non-circular gear pairs 2, four cylindrical gear pairs 3, a static shaft 4, and four mutual A separate rotating member 5 and a material holding member 6 fixed to the rotating member.

Wherein, the non-circular gear pair 2 has the same pitch curve shape, and includes a first driving wheel 21 and a first driven wheel 22 that mesh with each other, and the spur gear pair 3 has a second driving wheel 31 and a second driven wheel 32 that mesh with each other. .

The first driving wheel 21 is fixed on the driving shaft 1, and the phase angles of the adjacent first driving wheels 21 are different by 90°.

The first driven wheel 22 is mounted on the static shaft 4, and the second driving wheel 31 is rotatable in synchronization with the first driven wheel 22. The first driven wheel 22 maintains a relative rotational relationship with the stationary shaft 4, and each of the first driven wheels 22 outputs a shifting motion law, and the phase angles of the adjacent first driven wheels 22 are different by 90°.

The first driven wheel 22 is fixedly coupled to the second driving wheel 31 of the spur gear pair, and the first driving wheel 21, the first driven wheel 22, the second driving wheel 31 and the second driven wheel 32 are detachably connected. Specifically, a semi-closed box may be disposed at the first driving wheel 21, the first driven wheel 22, and the second driving wheel 31, and a new gear box may be directly replaced when the code needs to be changed.

An identification structure 7 for marking the initial assembly position of the gear is also provided on the non-circular gear pair 2.

The above description and the drawings show only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any one skilled in the art can disclose the technology disclosed in the present invention. The equivalents and modifications of the technical solutions and the inventive concepts thereof are intended to be included within the scope of the present invention.

Claims

A material variable pitch conveying device comprising a driving shaft connected to a driving source, characterized in that: further comprising n non-circular gear pairs, n cylindrical gear pairs, a static shaft, and n mutually independent rotating parts, wherein The circular gear pair has a first driving wheel and a first driven wheel that mesh with each other, the cylindrical gear pair has a second driving wheel and a second driven wheel that are in mesh with each other; the first driving wheel is fixed on the driving shaft, and each adjacent The first driving wheel phase angles are different by 360°/n; the static shaft is mounted with a first driven wheel, and a second driving wheel that can be synchronously rotated by the first driven wheel; the second driven wheel and the rotating component Corresponding to the connection; the above n≥1.
A material variable pitch conveying apparatus according to claim 1, wherein said n ≥ 2, and each of the non-circular gear pairs has the same pitch curve shape.
The material variable pitch conveying device of claim 1 further comprising a material retaining member secured to said rotating member.
The material variable pitch conveying device of claim 1 , wherein the first driven wheel maintains a relative rotational relationship with the static shaft, and each of the first driven wheels outputs a shifting motion law, and a phase angle of each adjacent first driven wheel The difference is 360°/n.
The material variable pitch conveying device according to claim 1, wherein said first driven wheel is fixed to a second driving wheel of the spur gear pair.
The material variable pitch conveying device according to claim 1, wherein the material is any one of a raw material, a semi-finished product, or a finished product in the sanitary article.
A material variable pitch conveying apparatus according to any one of claims 1 to 6, wherein said variable pitch conveying means further comprises a direction adjusting structure for changing the direction of the material during the variable pitch conveying.
The material variable pitch conveying device according to claim 1, wherein the first driving wheel, the first driven wheel, the second driving wheel and the second driven wheel are detachably connected.