JP2024010899A - Apparatus for manufacturing ear hook continuum - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for manufacturing ear hook continua that facilitates easy size changeover of masks to be manufactured.

SOLUTION: An apparatus 10 for manufacturing ear hook continua includes: a continuum conveying device 18 for conveying first and second extending member continua 2a, 2b; a joining device 16 arranged opposite a conveying path; a connecting member conveying device 14 having circulating members 14a, 14b circulating between a receiving position A and a joining position B; and a control device. The circulating members 14a,14b receive connecting members 3k at the receiving position A, convey them to the joining position B while suction-holding them, and at the joining position B in cooperation with the joining device 16, join the connecting members 3k to the first and second extending member continua 2a,2b so as to span between the first and second extending member continua 2a,2b to form an ear hook continuum 4. The controller can change a cycle in which the circulating members 14a,14b circulate between the receiving position A and the joining position B.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to an apparatus for manufacturing a continuous ear hook part, and more particularly, to a technique for manufacturing a continuous ear hook part in which parts of a mask that become ear hook parts are connected.

Conventionally, a mask has been proposed in which a pair of ear hooks are joined to a mask body. For example, FIG. 7 is a plan view of such a mask 110. As shown in FIG. 7, in the mask 110, an ear hook sheet 130a forming a pair of ear hook portions 130 is joined to a mask body 120.

The pair of ear hook parts 130 each have a joint part 131 and an annular part 132. The joint portion 131 is joined to the end region 121 of the mask body 120 via a joint point 122 by fusion bonding. The annular portions 132 of the pair of ear hook portions 130 are joined to each other at a joining portion 134. Ear hook holes 133 are formed inside the joint portion 131 and the annular portion 132. When using the mask 110, the pair of ear hooks 130 are separated at the joint 134, and the ears are inserted into the respective ear hook holes 133.

FIG. 8 is an explanatory diagram of the manufacturing process of the mask 110. As shown in FIG. 8, each mask body 120 is conveyed in the direction of arrow 140 while being held on sheet holding surface 142 of holding roll 141. As shown in FIG. At the same time, the sheet holding surface 124 of the die cutter 123 conveys the ear hook part continuous body 121b, which forms the portion that will become the ear hook sheet 130a, in the direction shown by the arrow 220. Then, the mask main body 120 on the holding roll 141 and the portion of the ear hook part continuous body 121b that will become the ear hook sheet 130a are overlapped and joined together, and then cut to separate individual pieces of the mask 110 (for example, , see Patent Document 1).

Patent No. 5762804

However, if a part of the sheet is cut out to form the ear holes as described above, when manufacturing masks of different sizes, work such as unit replacement will occur, reducing productivity. do.

In view of these circumstances, an object of the present invention is to provide an apparatus for manufacturing an ear hook continuous body that facilitates changing the size of the mask to be manufactured.

In order to solve the above problems, the present invention provides an apparatus for manufacturing an ear hook continuous body configured as follows.

An apparatus for manufacturing an ear hook continuous body includes (a) a continuous body conveying device that conveys first and second extending member continuous bodies with a space therebetween; and (b) the first and second extending member continuous bodies. (c) a bonding device arranged to face a conveyance path along which the continuous member is conveyed; and (c) a connection position between a receiving position for receiving the connection member and a bonding position facing the bonding device across the conveyance path. A connecting member conveying device having a plurality of circulating members that circulate, and (d) a control device controlling the connecting member conveying device. The circulation member of the connecting member conveying device receives the connecting member at the receiving position, transports the connecting member to the joining position while holding the connecting member under suction, and cooperates with the joining device at the joining position, The connecting member is joined to the first and second extending member continuous bodies so as to straddle between the first and second extending member continuous bodies to form an ear hook continuous body. The control device can change a cycle in which the circulation member of the connection member conveying device circulates between the receiving position and the joining position.

According to the above configuration, after the portion that will become the mask body is overlapped and joined to the ear hook continuous body formed by the ear hook continuous body manufacturing apparatus, the first and second extending member continuous bodies are bonded. , the mask can be manufactured by cutting at an intermediate position between adjacent connecting members. Since the dimensions of the mask are determined according to the spacing between adjacent connecting members, the size of the mask to be manufactured is switched by changing the spacing between the connecting members joined to the first and second continuous extending members. be able to.

In the above configuration, the control device may change the period in which the circulating member circulates between the receiving position and the joining position, thereby changing the interval between the connecting members joined to the first and second continuous extending members. The size of the mask to be manufactured can be changed. No work such as unit replacement is required when changing the size of the mask being manufactured. Therefore, it becomes easy to change the size of the mask to be manufactured.

Preferably, the apparatus for manufacturing an ear hook continuous body further includes (e) a connecting member forming apparatus that sequentially forms the connecting members. The control device controls the connection member forming device.

In this case, the connection member can be controlled to be formed in synchronization with the formation of the ear hook continuous body, so that the material for manufacturing the connection member 3k can be controlled to avoid wastage.

Preferably, the control device controls the continuous body conveying device.

In this case, since the connecting members can be joined at a predetermined interval even if the conveyance speed of the first and second continuous extending members changes, the conveying speed of the first and second continuous extending members can be changed. By changing, the production amount of the ear hook continuous body per unit time can be easily changed.

According to the present invention, it is possible to provide an apparatus for manufacturing an ear hook continuous body that facilitates changing the size of the mask to be manufactured.

FIG. 1 is a schematic diagram of an apparatus for manufacturing an ear hook continuous body. (Example 1) FIG. 2 is a block diagram of an apparatus for manufacturing an ear hook continuous body. (Example 1) FIG. 3 is a developed view of the outer peripheral surface of the circulation member. (Example 1) FIG. 4 is an enlarged view of the main part of the ear hook continuous body. (Example 1) FIG. 5 is a plan view of the mask. (Example 1) FIG. 6 is a block diagram of an apparatus for manufacturing an ear hook continuous body. (Example 1) FIG. 7 is a plan view of the mask. (Conventional example 1) FIG. 8 is an explanatory diagram of the mask manufacturing process. (Conventional example 1)

Embodiments of the present invention will be described below with reference to the drawings.

<Example 1> An apparatus 10 for manufacturing an ear hook continuous body according to Example 1 will be described with reference to FIGS. 1 to 6.

FIG. 1 is a schematic diagram showing the configuration of an apparatus 10 for manufacturing an ear hook continuous body. FIG. 2 is an explanatory diagram of the operation of the apparatus 10 for manufacturing an ear hook continuous body. FIG. 5 is a plan view of the mask 9.

As shown in FIG. 2, the apparatus 10 for manufacturing an ear hook continuous body connects a connecting member 3k to a first and second extending member continuous body 2a, 2b with an interval L, and Form body 4. After the ear hook part continuum 4 is stacked on a mask main body continuum (not shown) to which the mask main body part is connected and joined together to form a main body joint part 7 to be described later, a connection between adjacent connecting members 3k is formed. The mask 9 is formed by cutting the first and second extending member continuous bodies 2a and 2b at an intermediate position.

As shown in FIG. 5, the mask 9 has side parts 8m and 8n of the mask body 8x divided from the mask body continuous body, and first side parts 8m and 8n divided from the first and second extending member continuous bodies 2a and 2b. Both ends of the second extending members 9a and 9b are joined via the main body joining portion 7. By cutting and separating the connecting member 3k and the first and second extending members 9a, 9b along the perforations 3v, a pair of ear hooks 8a, 8b having ear hook holes 9p, 9q are formed. It is formed.

Since the dimensions of the mask 9 are determined according to the spacing between adjacent connecting members 3k, the manufacturing process can be improved by changing the spacing between the connecting members 3k joined to the first and second extending member series 2a, 2b. The size of the mask 9 can be changed. For example, by shortening the interval between the connecting members 3k joined to the first and second extending member series 2a and 2b, it is possible to manufacture a mask 9 with a small size, and the first and second extending members By increasing the distance between the connecting members 3k joined to the continuous bodies 2a and 2b, a mask 9 with a large size can be manufactured.

As shown in FIGS. 1 and 2, the first and second extending member continuous bodies 2a and 2b are conveyed in parallel with each other with an interval provided therebetween by the continuous body conveying device 18. A joining device 16 is disposed on one side of the conveyance path along which the first and second extending member continuous bodies 2a and 2b are conveyed, and a connecting member conveyance device 14 is disposed on the other side. The joining device 16 is, for example, an ultrasonic welding device. It is also possible to use a heat sealing device or the like as the bonding device 16.

The connecting member 3k is formed by the connecting member forming device 12. The connection member forming device 12 includes a suction roll 12a and a cutter roll 12b that face each other and rotate in synchronization in the directions of arrows 12p and 12q. The connection member forming device 12 moves the nonwoven fabric sheet 3, which is being conveyed in the direction of the arrow 3x, to a position (not shown) protruding from the outer peripheral surface of the cutter roll 12b at a facing position X where the suction roll 12a and the cutter roll 12b face each other. The connecting member 3k is formed by cutting the connecting member 3k at predetermined intervals in the conveying direction using the cutting edge of the connecting member 3k.

The connection member 3k is conveyed to the receiving position A while being attracted to the outer peripheral surface of the attraction roll 12a. Specifically, suction boxes 12m and 12n connected to a negative pressure source are arranged inside the suction roll 12a, and suction holes (not shown) formed on the outer peripheral surface of the suction roll 12a face the suction boxes 12m and 12n. In the section, the connecting member 3k is conveyed while being attracted.

The connecting member conveying device 14 has a receiving position A adjacent to the connecting member forming device 12, and a joining position opposite to the joining device 16 across the conveying path along which the first and second extending member continuous bodies 2a and 2b are conveyed. It has two circulation members 14a and 14b that circulate between position B and the position B as shown by arrows 15a and 15b. The connecting member conveying device 14 may be configured to have three or more circulating members. The circulation members 14a, 14b communicate with a negative pressure source as shown by arrows 15p, 15q in the section from the receiving position A to the joining position B, and are connected to the outer circumferential surface 14s (see FIG. 3) of the circulation members 14a, 14b. The member 3k is attracted and held.

At the receiving position A, the circulation members 14a, 14b receive the connection member 3k, which has been sucked by the suction roll 12a of the connection member forming device 12, by sucking it onto the outer circumferential surface 14s of the circulation members 14a, 14b, and then remove the connection member 3k. While adsorbing and holding 3k, it is transported to the joining position B. At the joining position B, the circulation members 14a, 14b transport the connecting member 3k at the same speed as the first and second continuous extending members 2a, 2b, and also transport the connecting member 3k at the joining position B. The connecting member 3k is stacked on the first and second extending member continuous bodies 2a and 2b so as to straddle between the connecting members 3k and 2b, and the connecting member 3k is connected to the first and second extending member continuous bodies 2a and 2b in cooperation with the joining device 16 as described later. It is joined to the continuous extending members 2a and 2b. As a result, an ear hook continuous body 4 is formed in which the connecting member 3k is joined to the first and second extending member continuous bodies 2a and 2b.

As shown in FIG. 2, the circulation members 14a and 14b circulate between the receiving position A and the joining position B with shifted periods. That is, one circulating member 14a receives the connecting member 3k at the receiving position A, and at the same time, the other circulating member 14b joins the connecting member 3k to the first and second extending member series 2a, 2b at the joining position B. do. Next, one of the circulation members 14a moves to the joining position B as shown by the arrow 14p, and joins the connecting member 3k to the first and second continuous extending members 2a, 2b at the joining position B, and at the same time, The other circulating member 14b moves to the receiving position A as shown by an arrow 14q, and receives the connecting member 3k at the receiving position A. In this way, the circulation members 14a and 14b intermittently transport the connection member 3k.

The circulation members 14a and 14b move periodically while changing the speed appropriately. For example, the circumferential speed of the circulation members 14a and 14b, that is, the moving speed of the outer circumferential surface 14s, matches or substantially matches the circumferential speed of the suction roll 12a at the receiving position A, and the circumferential speed of the first and second extending members at the joining position B. The circulation members 14a, 14b move while periodically changing their speeds so as to match or substantially match the transport speeds of the continuous bodies 2a, 2b.

It is preferable that the circulation members 14a and 14b be configured so that the moving speed changes periodically using a mechanical mechanism such as a cam, but it is possible to change the moving speed periodically by controlling the rotation speed of the motor, etc. It is.

FIG. 6 is a block diagram of an apparatus 10 for manufacturing an ear hook continuous body. As shown in FIG. 6, in the ear hook continuous body manufacturing apparatus 10, a continuous body conveying device 18, a joining device 16, a connecting member forming device 12, and a connecting member conveying device 14 are connected to a control device 11. has been done.

The control device 11 can control the connecting member conveying device 14 and change the interval between the connecting members 3k joined to the first and second extending member continuous bodies 2a and 2b.

For example, if the conveyance speed of the first and second continuous extending members 2a and 2b is constant and the joining device 16 is always operating, as shown in FIG. Assuming that the interval (pitch) between the connecting members 3k connected to the member continuous bodies 2a and 2b is L (mm), and the conveyance speed of the first and second extending member continuous bodies 2a and 2b is V (mm/mm), The control device 11 controls the connecting member forming device 12 so that the number of connecting members 3k manufactured per minute is V/L, and also controls the total number of connecting members 3k that the circulating members 14a and 14b pass through the joining position B per minute. The connecting member conveying device 14 is controlled so that the number of times becomes V/L. For example, when the connecting member conveying device 14 has two circulating members 14a and 14b, the control device 11 controls the connecting member so that the number of rotations per minute of the connecting member conveying device 14 is V/(2L). Controls the transport device 14.

The control device 11 may control the connecting member forming device 12 in addition to the connecting member conveying device 14. In this case, the connection member 3k can be controlled to be formed in synchronization with the formation of the ear hook part continuous body 4, so that the material for manufacturing the connection member 3k can be prevented from being wasted.

When the control device 11 is configured to control the continuous body conveying device 18, the control device 11 can maintain the predetermined interval L even if the conveying speed V of the first and second extending member continuous bodies 2a, 2b changes. The connecting member 3k can be controlled to be joined to the first and second continuous extending members 2a and 2b. In this case, even if the conveyance speed V of the first and second extending member continuous bodies 2a and 2b is changed, the ear hook continuous body 4 can be formed. The production amount can be easily changed.

FIG. 3 is a developed view of the outer peripheral surfaces 14s of the circulation members 14a, 14b. FIG. 4 is an enlarged view of the main part of the ear hook continuous body 4. As shown in FIG. As shown in FIG. 3, a plurality of suction holes 14t communicating with a negative pressure source are formed in the outer circumferential surface 14s of the circulation members 14a, 14b, and the connecting member 3k is attracted to the position shown by the chain line 3k. At the joining position B, the first and second continuous extending members 2a and 2b are stacked on the connecting member 3k which is held by suction on the outer circumferential surface 14s of the circulation members 14a and 14b.

First to third anvil portions 14p, 14q, 14r are formed on the outer peripheral surfaces 14s of the circulation members 14a, 14b in order to join the connecting members 3k in a predetermined pattern. That is, a plurality of wavy first anvil parts 14p extend in a zigzag manner around the suction hole 14t, and a plurality of linear anvil parts arranged in an area surrounded by the first anvil part 14p and the suction hole 14t. The second anvil portion 14q and a plurality of rectangular third anvil portions 14r arranged on the boundary line of the region where the connecting member 3k and the first and second extending member series 2a, 2b overlap, It is formed to slightly protrude (protrude) from the outer peripheral surface 14s.

The connecting member 3k and the first and second extending member continuous bodies 2a, 2b are connected to the first to third anvil portions 14p, 14q, 14r of the circulation members 14a, 14b, and the joining device 16 at the joining position B. and the tip of the ultrasonic horn. As a result, the connecting member 3k and the first and second extending member continuous bodies 2a, 2b are partially connected to each other, and as shown in FIG. First to third joint portions 4p, 4q, and 4r corresponding to the above are formed.

The first and second extending member continuous bodies 2a, 2b are made of nonwoven fabric at a predetermined interval, with one or more elastic members 5 in a stretched state being sandwiched between two nonwoven fabric sheets. It is formed by joining the sheet and the elastic member 5 to each other, and elastic member joining portions 5x in which the nonwoven fabric sheet and the elastic member 5 are connected to each other are formed at equal intervals. The elastic member 5 is, for example, a rubber thread coated with a thermoplastic resin.

Although the elastic member joint 5x overlapping the connecting member 3k is not shown in FIGS. 3 and 4, the first and second joints 4p and 4q are formed between the adjacent elastic member joints 5x. . When the elastic member 5 is released from the stretched state, the portions of the elastic member 5 that are not joined to the nonwoven fabric sheet contract. The length of the contracted portion of the elastic member 5 is shorter than other regions because the first and second joint portions 4p and 4q are formed in the region overlapping with the connecting member 3k. Further, the connecting member 3k becomes hard and difficult to deform when the joint portions 4p and 4q are formed. Therefore, when the perforations 3v are formed in the connection member 3k in a subsequent process, variations in the positions of the perforations 3v can be suppressed, and the positions of the perforations 3v are stabilized.

The perforation 3v is formed at the center of the connecting member 3k of the continuous ear hook part 4 before joining the continuous ear hook part 4 to the continuous mask main body. The perforations 3v are formed by, for example, a plurality of notches passing through the main surfaces of the connecting member 3k at intervals so as to be lined up in a row in a direction perpendicular to the conveying direction 4x. Perforations 3v are also formed in the first and second extending member continuous bodies 2a and 2b.

When the ear hook part continuous body 4 is manufactured as explained above, the size of the manufactured mask 9 can be changed by changing the interval between the connecting members 3k connected to the first and second extending member continuous bodies 2a and 2b. Can be easily changed.

Moreover, since the first and second extending member continuous bodies 2a and 2b are continuous, the ear hook part continuous body 4 can be transported at high speed, and the mask 9 can be manufactured at high speed. Moreover, since the ear hook part continuous body 4 can be formed without cutting out the portion corresponding to the entire ear hook holes 9p and 9q, waste of material can be reduced.

Note that the present invention is not limited to the embodiments described above, and can be implemented with various modifications.

For example, the connecting member conveying device may be omitted, and the connecting members formed and prepared in advance may be sequentially delivered to the circulation member of the connecting member conveying device at the receiving position.

Furthermore, when changing the size of the mask, it is also possible to change the interval between the first and second extending member continuum, the dimensions of the connecting member, the width of the mask main body continuum, etc., depending on the mask size. good.

2a First extending member continuous body 2b Second extending member continuous body 3k Connecting member 10 Ear hook continuous body manufacturing device 11 Control device 12 Connecting member forming device 14 Connecting member conveying device 14a, 14b Circulating member 16 Joining device 18 Continuous body conveyance device A Receiving position B Joining position

Claims (3)

a continuous body conveying device that conveys first and second extending member continuum bodies at a distance from each other;
a joining device disposed so as to face a conveyance path along which the first and second continuous extending members are conveyed;
a connecting member conveying device having a plurality of circulating members that circulate between a receiving position for receiving the connecting members and a joining position facing the joining device across the conveying path;
a control device that controls the connection member conveyance device;
Equipped with
The circulation member of the connection member conveying device is
The connecting member is received at the receiving position, the connecting member is suction-held and conveyed to the joining position, and at the joining position, in cooperation with the joining device, the first and second extending members are connected continuously. joining the connecting member to the first and second extending member continuous bodies so as to straddle the body to form an ear hook continuous body;
The control device is an apparatus for manufacturing an ear hook continuous body, wherein the control device is capable of changing a cycle in which the circulation member of the connection member conveying device circulates between the receiving position and the joining position. further comprising a connection member forming device that sequentially forms the connection members,
The apparatus for manufacturing an ear hook continuous body according to claim 1, wherein the control device controls the connection member forming device. The apparatus for manufacturing an ear hook continuous body according to claim 1 or 2, wherein the control device controls the continuous body conveying device.

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