CN220031431U - High-speed paper diaper elastic waistline pulling mechanism - Google Patents

Abstract

The utility model relates to the field of sanitary article production equipment, in particular to a high-speed diaper elastic waistline pulling mechanism, which comprises a rack, wherein a main shaft is erected on the rack, a plurality of transmission shafts capable of rotating along the main shaft are installed on the main shaft, a driving assembly for driving the main shaft to rotate is connected to the transmission shafts, a swing arm is fixedly installed on each transmission shaft, a supporting plate is installed on each swing arm, a guide rail which is arranged in the same direction as the main shaft is installed on the supporting plate, a pair of air suction discs capable of sliding along the guide rail are installed on the guide rail, and an air distribution assembly for providing negative pressure for the air suction discs is connected to the air suction discs; the main shaft is fixedly connected with a circular cam, guide grooves for guiding are symmetrically distributed on the circular cam, a bearing is mounted at the lower end of the air suction disc, and the bearing is embedded in the guide grooves. The utility model solves the problem that the pulling process in the existing elastic waistline production can not be carried out at high speed and high efficiency.

Description

High-speed paper diaper elastic waistline pulling mechanism

Technical Field

The utility model relates to the field of sanitary article production equipment, in particular to a high-speed paper diaper elastic waistline pulling mechanism.

Background

In the production process of paper diapers, pull-up pants and other products, as shown in the prior application CN 106038086A of the inventor, the online manufacturing process of the elastic waistline is characterized by comprising the following steps:

the method comprises the steps of firstly, respectively gluing non-woven fabrics and rubber strings, and manufacturing elastic waistline materials by wrapping the non-woven fabrics with the rubber strings;

secondly, adhering PE films on the elastic waistline material at intervals, inputting the PE films into a cutter roller, and locally cutting the rubber band positioned between two adjacent PE films to lose part of elasticity, wherein the cutting operation is to select a plurality of spaced points from the rubber band to cut;

thirdly, transferring the elastic waistline material to a cutting mechanism through an adsorption roller, and cutting to form an independent elastic waistline;

fourthly, rotating the elastic waistline by 90 degrees through an elastic waistline transfer mechanism, and finally transferring the elastic waistline to a compound transfer roller to compound the elastic waistline with the bottom layer material coated with the glue;

and fifthly, after the composite transfer roller performs the composite operation, transferring the composite transfer roller to a main line of the machine table for manufacturing.

In the fourth step, when the independent and single elastic waistline component is compounded, the compounding is required to be carried out in a stretching state, and the process is limited by technological requirements, so that the speed of the single elastic waistline component cannot be further increased when the single elastic waistline component is pulled open by adopting a traditional structure, and the production efficiency is influenced.

Disclosure of Invention

Therefore, the utility model provides the high-speed paper diaper elastic waistline pulling mechanism, which solves the problem that the pulling process in the existing elastic waistline production cannot be performed at high speed and high efficiency.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the utility model provides a high-speed panty-shape diapers elasticity waistline pulls open mechanism, includes the frame, the frame is erect on the top, install a plurality of transmission shafts that can follow its pivoted on the main shaft, be connected with on the transmission shaft and drive its pivoted drive assembly, each on the transmission shaft fixedly installed swing arm, install the layer board on the swing arm, install with the guide rail that main shaft syntropy set up on the layer board, install the paired setting's that can follow it on the guide rail induced draft dish, induced draft dish is connected with the distribution subassembly that provides the negative pressure for it;

the main shaft is fixedly connected with a circular cam, guide grooves used for guiding are symmetrically distributed on the circular cam, the lower end of the air suction disc is provided with a bearing, and the bearing is embedded in the guide groove so that the air suction disc moves on the guide rail along the extending direction of the guide groove.

Preferably, the driving assembly comprises gears connected to the transmission shafts, and a main servo motor and a main speed reducer for driving the gears to rotate.

Preferably, the two transmission shafts comprise a first transmission shaft and a second transmission shaft, and the first transmission shaft is sleeved on the outer surface of the second transmission shaft.

Preferably, the driving assembly further comprises a secondary servo motor and a secondary speed reducer connected to the secondary servo motor, the primary speed reducer is a planetary speed reducer, and the secondary speed reducer is in transmission connection with an outer gear ring on the primary speed reducer.

By adopting the technical scheme, the utility model has the beneficial effects that:

according to the technical scheme, through a movable air suction disc structure, a bearing at the lower end of the air suction disc is driven to move in a guide groove on a circular cam at a fixed position through rotation of a swing arm, continuous and stable periodic reciprocating motion is formed, two sides of a single elastic waistline are adsorbed when two air suction discs are at the nearest positions, and at the moment, the elastic waistline of a spring sheet is in a contracted state under the action of an internal elastomer; the suction discs are kept in an adsorption state and move in opposite directions along with the rotation of the swing arms under the guidance of the guide grooves gradually, so that the elastic waistline is pulled away gradually, and the elastic waistline is ensured to enter the next compounding stage in a stretched state;

the rotation speed of the swing arms can be adjusted through the driving assembly in the pulling process, the number of the swing arms can be adjusted according to the requirements, the integration level is high structurally, the working process is stable and reliable, and the production efficiency is high;

when changing codes, only the guide groove on the circular cam needs to be adjusted, and the device is convenient to adjust and flexible to use.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a left-hand direction structure of a mechanism according to an embodiment of the present utility model;

fig. 3 is a schematic top view of the mechanism according to the embodiment of the present utility model.

Reference numerals: 1. a main shaft; 11. a circular cam; 111. a guide groove; 2a, a first transmission shaft; 2b, a second transmission shaft; 21. a gear; 22. a main servo motor; 23. a main speed reducer; 24. an auxiliary servo motor; 25. a secondary speed reducer; 3. swing arms; 4. a supporting plate; 5. a guide rail; 6. an air suction disc; 61. a gas distribution assembly; 62. and (3) a bearing.

Detailed Description

The following describes embodiments of the present utility model in detail with reference to specific examples, so as to solve the technical problem by applying the technical means to the present utility model, and the implementation process for achieving the technical effect can be fully understood and implemented accordingly.

Examples

Referring to fig. 1, 2 and 3, a pull-open mechanism for elastic waistline of high-speed paper diaper comprises a frame, a main shaft 1 is erected on the frame, two transmission shafts capable of rotating along the main shaft 1 are installed on the main shaft, a driving component for driving the main shaft to rotate is connected on each transmission shaft, a swing arm 3 is fixedly installed on each transmission shaft, a supporting plate 4 is installed on each swing arm 3, a guide rail 5 which is arranged in the same direction as the main shaft 1 is installed on each supporting plate 4, a pair of air suction discs 6 which are arranged along the guide rail 5 in a sliding manner are installed on each guide rail, and an air distribution component 61 for providing negative pressure for each air suction disc 6 is connected with each air suction disc;

the spindle 1 is fixedly connected with a circular cam 11, guide grooves 111 which are used for guiding are symmetrically distributed on the circular cam 11, a bearing 62 is arranged at the lower end of the air suction disc 6, and the bearing 62 is embedded in the guide grooves 111 so that the air suction disc 6 moves on the guide rail 5 along the extending direction of the guide grooves 111.

The two transmission shafts comprise a first transmission shaft 2a and a second transmission shaft 2b, the first transmission shaft 2a is sleeved on the outer surface of the second transmission shaft 2b, the two swing arms 3 on the first transmission shaft 2a and the second transmission shaft 2b are separated by 180 degrees, the two swing arms 3 are not interfered, and the first transmission shaft 2a and the air suction disc 6 on the second transmission shaft 2b are separated to operate, so that the efficiency of the pulling step is ensured.

According to the technical scheme, through the movable air suction disc 6 structure, the bearing 62 at the lower end of the air suction disc 6 is driven to move in the guide groove 111 on the circular cam 11 at the fixed position through the rotation of the swing arm 3, continuous and stable periodic reciprocating motion is formed, two sides of a single elastic waistline are adsorbed when the two air suction discs 6 are at the nearest positions, and at the moment, the elastic waistline of the elastic sheet is in a contracted state under the action of an internal elastomer; the suction discs 6 are kept in an adsorption state, and along with the rotation of the swing arms 3, the two suction discs 6 are gradually guided by the guide grooves 111 to move in opposite directions, so that the elastic waistline is gradually pulled away, and the elastic waistline is ensured to enter the next compounding stage in a stretched state;

the rotation speed of the swing arm 3 can be adjusted through the driving component in the pulling process, the number of the swing arms 3 can be adjusted according to the requirement, the integration level is high structurally, the working process is stable and reliable, and the production efficiency is high;

during code changing, only the guide groove 111 on the circular cam 11 needs to be adjusted, so that the adjustment is convenient, and the use is flexible.

Structurally, the driving assembly comprises a gear 21 connected to each transmission shaft, and a main servo motor 22 and a main speed reducer 23 for driving the gear 21 to rotate. This is the most basic structure designed in this technical solution, i.e. a single transmission shaft is driven solely by means of a separate main servomotor 22 in combination with a final drive 23.

On the basis of the structure, the driving assembly further comprises a secondary servo motor 24 and a secondary speed reducer 25 connected to the secondary servo motor 24, the primary speed reducer 23 is a planetary speed reducer, and the secondary speed reducer 25 is in transmission connection with an outer gear ring on the primary speed reducer 23. The planetary reducer is provided with a sun gear input end positioned at the center and an outer gear input end positioned at the outer shell of the main reducer 23, and at the moment, the auxiliary reducer 25 is matched with the main reducer 23 to jointly drive the first transmission shaft 2a and the second transmission shaft 2b to move; when the equipment is operated, the auxiliary speed reducer 25 adopts uniform rotation motion, and the main speed reducer 23 only needs variable speed motion, so that the vibration of the mechanism can be reduced in the starting and stopping processes of the equipment and continuous operation, the stability is improved, the load of the main servo motor 22 is reduced, and the service life of the main servo motor 22 is prolonged.

The air distribution assembly 61 is not specifically described in the present embodiment, and is well known to those skilled in the art, and the present utility model is specifically described in the prior application of the present utility model, which is not repeated herein.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (4)

1. The utility model provides a high-speed panty-shape diapers elasticity waistline pulls open mechanism, includes frame, its characterized in that: the device comprises a rack, and is characterized in that a main shaft (1) is erected on the rack, a plurality of transmission shafts capable of rotating along the main shaft (1) are installed, a driving assembly for driving the main shaft to rotate is connected to the transmission shafts, a swing arm (3) is fixedly installed on each transmission shaft, a supporting plate (4) is installed on each swing arm (3), a guide rail (5) which is arranged in the same direction as the main shaft (1) is installed on each supporting plate (4), air suction discs (6) which are arranged in pairs and can slide along the guide rails (5) are installed on the guide rails (5), and an air distribution assembly (61) for providing negative pressure for the air suction discs (6) is connected;

the novel air suction device is characterized in that a circular cam (11) is fixedly connected to the main shaft (1), guide grooves (111) used for guiding are symmetrically distributed on the circular cam (11), a bearing (62) is arranged at the lower end of the air suction disc (6), and the bearing (62) is embedded in the guide grooves (111) so that the air suction disc (6) moves on the guide rails (5) along the extending direction of the guide grooves (111).

2. The high-speed diaper elastic waistline pulling mechanism of claim 1, wherein: the driving assembly comprises gears (21) connected to the transmission shafts, and a main servo motor (22) and a main speed reducer (23) which drive the gears (21) to rotate.

3. The high-speed diaper elastic waistline pulling mechanism of claim 2, wherein: the two transmission shafts comprise a first transmission shaft (2 a) and a second transmission shaft (2 b), and the first transmission shaft (2 a) is sleeved on the outer surface of the second transmission shaft (2 b).

4. The high-speed diaper elastic waistline pulling mechanism of claim 3, wherein: the driving assembly further comprises a secondary servo motor (24) and a secondary speed reducer (25) connected to the secondary servo motor (24), the primary speed reducer (23) is a planetary speed reducer, and the secondary speed reducer (25) is in transmission connection with an outer gear ring on the primary speed reducer (23).