JP2001206597A - Interval adjusting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust an interval between two members disposed in parallel with high precision by simple operation. SOLUTION: This device adjusts the interval between two members 4, 6 disposed in parallel, and is provided with a holder 3 which supports the member 4 disposed on one side of them and is capable of approaching/retreating to/from the other side, and a block 9 disposed on the other side of the holder 3 and regulating the travel of the holder to the other side. The block 9 is traveled in such a direction as to traverse an opposite surface 3a on the holder 3 opposite to the block 9, and the opposite surface 3a is inclined at a prescribed angle to the traveling direction of the block 9 so as to change a contact position of the opposite surface 3a and the block 9 along the traveling direction of the block 9, so that the traveling amount of the holder 3 to the other side is changed. It is thus possible to adjust the interval between the two members 4, 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for adjusting the distance between two juxtaposed members.

[0002]

2. Description of the Related Art Two juxtaposed rolls, such as a pair of rolls for holding a sheet-like or film-like article (hereinafter, these articles are collectively referred to as a "film-like article") or the like, are used. When adjusting the interval between members, a method is adopted in which the above-mentioned roll is composed of a fixed roll and a movable roll, and the gap between the fixed roll and the movable roll is adjusted by a gap gauge or the like while displacing the movable roll with a screw or the like. ing.

[0003]

However, in the above-described conventional distance adjusting method, since it is necessary to position the movable roll after holding a gap gauge or the like between the fixed roll and the movable roll, the operation is complicated. In addition, there is a problem that human labor is required. In addition, there is also a problem that the gap cannot be accurately followed by a gap gauge or the like, particularly when the interval is adjusted with high accuracy. The present invention has been made in view of the above circumstances, and it is an object of the present invention to enable a simple operation to adjust the interval between two juxtaposed members with high accuracy.

[0004]

SUMMARY OF THE INVENTION The present invention is an apparatus for adjusting the distance between two juxtaposed members, which supports a member located on one of the members and moves the member closer to the other. A holder that is capable of being separated, and a block that is located on the other side of the holder and regulates movement of the holder to the other side, wherein the block is moved in a direction crossing a surface of the holder that faces the block. In addition, by making the opposing surface inclined at a predetermined angle with respect to the moving direction of the block, and changing the contact position between the opposing surface and the block along the moving direction of the block, The distance between the two members is adjusted by changing the amount of movement of the holder to the other side.

[0005] In this case, the block is screwed into a male screw portion extending along the moving direction of the block, and is movable along the extending direction of the male screw portion by rotation of the male screw portion. It is desirable that it is.

In order to more accurately display the distance between the two members, at least one of the opposing surface and the opposing portion of the block opposing the opposing surface is provided with the amount of movement of the block relative to the holder or the amount of movement of the block. It is desirable to provide a configuration including a display unit for displaying the interval between the two members.

Further, one of the two members may be a movable roll and the other may be a fixed roll. The movable roll and the fixed roll are used when moving an article while pinching the article at a high precision interval. As an example of such a case, there is a case where two film-shaped articles are thermally fused vertically and horizontally while being sandwiched between a movable roll and a fixed roll, and a packaging bag or the like is manufactured from these film-shaped articles. Also,
The movable roll may be an anvil roll, and the fixed roll may be replaced with a horn for applying ultrasonic waves. In the case of such ultrasonic heat fusion, the interval between two film-shaped articles is important, and therefore, the interval adjusting device of the present invention capable of sandwiching articles at a highly accurate interval is particularly effective.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a heat-sealing apparatus for a film-like article sandwiched between a movable roll and a fixed roll according to an embodiment of the present invention; The case where the distance adjustment is used will be described as an example.

FIG. 1 shows an example of this interval adjusting device. In the figure, reference numeral 1 denotes a horizontally extending frame, on which a rail 2 is horizontally extended toward the other end (right side in the figure), and on the rail 2, a holder 3 is provided. , Are movably supported along the rail 2. A movable roll (member) 4 is provided on the holder 3.
Is supported rotatably about a horizontal axis 5 perpendicular to the rail 2, and a fixed roll (member) 6 parallel to the movable roll 4 is installed on the other end of the movable roll 4. Further, a surface facing the other end of the holder 3 (a surface facing a block to be described later, reference numeral 3a) is an inclined surface that temporarily projects toward the other end as it goes downward.

Reference numeral 7 denotes a frame 1 at the other end of the holder 3.
The shaft 7 has a round bar shape, and is supported by the frame 1 via a bearing 8 so as to be rotatable around its own axis. The upper end of the shaft 7 is a male screw part 7a, and a block 9 is provided on the male screw part 7a.
It is screwed so as to be able to move up and down with the rotation of the shaft 7.
The surface (reference numeral 9 a) facing one end of the block 9 is an inclined surface parallel to the inclined surface 3 a of the holder 3.

At the lower end of the shaft 7, a bevel gear 10 is provided, and with the bevel gear 10, the tip of a bevel gear 12 provided at the other end of a shaft 11 extending horizontally from one end engages. I have. The shaft 11 has a round bar shape and is supported by a frame 13 erected on one end side of the frame 1 via a bearing 14 so as to be rotatable around its own axis. At one end of the shaft 11, a disk-shaped handle 15 for rotating the shaft 11 is provided.

Reference numeral 16 denotes a cylinder extending horizontally at one end of the holder 3. The cylinder 16 is supported by a frame 13 via a bearing 17 so as to be movable along its own axis. Further, the tip of the cylinder 16 is connected to one end surface of the holder 3 to urge the holder 3 to the other end side. As a result, the holder 3 and the block 9 are brought into contact with the inclined surfaces 3a, 9a. I have. An interval adjusting device 18 for adjusting the interval between the movable roll 4 and the fixed roll 6 is schematically constituted by the members from the frame 1 to the bearing 17.

To adjust the distance between the movable roll 4 and the fixed roll 6, the handle 15 is rotated. Then
The rotation of the handle 15 is controlled by the shaft 11 and the bevel gears 12,1.
0, the shaft 9 rotates, and the block 9 screwed to the male thread portion 7a of the shaft 7
Moves upward or downward depending on the rotation direction of the shaft 7.

In this case, when the block 9 moves upward, the inclined surface 3a and the inclined surface 9a come into contact with each other above the original position. (The block 9 side), the more the inclined surface 3a and the inclined surface 9a abut against each other,
The holder 3 urged to the other end by the cylinder 16 moves to the other end, and as a result, the distance between the movable roll 4 and the fixed roll 6 supported by the holder 3 is reduced. On the other hand, when the block 9 moves downward, the inclined surface 3a and the inclined surface 9a come into contact below the original position, and as a result,
The holder 3 is pressed to one end by the block 9 and moves in a direction away from the fixed roll 6, so that the distance between the movable roll 4 and the fixed roll 6 increases.

The block 9 is moved to its original position (the handle 1).
(The position before the rotation of No. 5) or a predetermined amount above and below, and when the movable roll 4 and the fixed roll 6 are separated at a desired interval, the rotation of the handle 15 is stopped. That is, in the interval adjusting device 18, the distance between the movable roll 4 and the fixed roll 6 is adjusted by rotating the handle 15 to move the block 9 up and down and changing the position of the holder 3 that supports the movable roll 4. ing.

Here, the moving amount of the holder 3 with respect to the moving amount of the block 9 is determined by the angle θ of the inclined surfaces 3a, 9a with respect to the moving direction of the block 9, that is, the gradient of the inclined surfaces 3a, 9a. For example, assuming that the gradient of the inclined surfaces 3a and 9a is horizontal component / vertical component = 1/100, the amount of movement of the holder 3 in the horizontal direction when the block 9 is moved up and down by 1 mm, for example, is 1 / 100mm
Becomes Further, the amount of movement of the block 9 with respect to the rotation of the shaft 7 is arbitrarily set according to the pitch of the screws forming the male screw portion 7a. Therefore, according to the distance adjusting device 18, the distance between the movable roll 4 and the fixed roll 6 can be adjusted by appropriately adjusting the angle θ of the inclined surfaces 3a and 9a and the pitch of the screws forming the male screw portion 7a. With a simple operation of 15 rotations, it is possible to adjust with high accuracy.

Although not shown, the interval adjusting device 18 is provided with a display unit for confirming the interval between the movable roll 4 and the fixed roll 6 or the amount of movement of the holder 3 due to the rotation of the handle 15. It is desirable to do. In particular, by forming the display portion on the inclined surfaces 3a and 9a, the distance between the movable roll 4 and the fixed roll 6 can be easily confirmed even with a small amount of movement, and the thickness of the film-like article to be sandwiched is increased. Accordingly, the distance between the movable roll 4 and the fixed roll 6 can be reliably changed. The display unit may be provided near the handle 15 to read the distance, the movement amount, and the like from the rotation amount of the handle 15.

As shown in FIG. 2, a cylindrical or spherical body 9b is embedded in the block 9 so that its surface is exposed from the inclined surface 9a, and the surface of the cylindrical or spherical body 9b exposed from the inclined surface 9a is , May be configured to contact the inclined surface 3a. With such a configuration, the shaft 7
When the block 9 moves with the rotation of the block 9, the block 9 moves by the rotation of the cylindrical body or the spherical body 9b in contact with the inclined surface 3a. Therefore, the inclined surfaces 3a and 9a are slid together as shown in FIG. The effect that the block 9 moves smoothly can be obtained as compared with the interval adjusting device 18 shown.

The handle 15 may be provided with a rotation control means for preventing unnecessary rotation and controlling the rotation at a predetermined pitch. FIG. 3 shows an example of the rotation control means. Reference numeral 1 in FIG.
Reference numeral 9 denotes an arm extending from one end surface of the frame 13 to one end near the shaft 11.
9a is bent in an L shape so as to cover the handle 15 from one end side. A disk-shaped rotation preventing body 20 coaxial with the handle 15 is fixed from the distal end 19a toward one end surface 15a of the handle 15. Also, handle 15
Is biased toward the other end by the action of a built-in spring (not shown). As a result, one end face 15a of the handle 15 is
The rotation preventing body 20 is elastically in contact with the other end surface 20a. Further, irregularities are radially formed on one end face 15a of the handle 15 and the other end face 20a of the rotation preventing body 20 around their axes. The pitch of these irregularities is
One pitch is set in advance so as to match the minimum rotation amount of the handle 15 (minimum movement amount of the block 9).

When the handle 15 is rotated, the handle 15 is moved to one end, and one end face 15a of the handle 15 is rotated.
And the other end surface 20 a of the rotation preventing body 20. On the other hand, when the rotation of the handle 15 is prevented, the one end face 15a of the handle 15 is brought into contact with the other end face 20a of the rotation preventing body 20, and the irregularities formed on the one end face 15a and the other end face 20a are fitted together. . As a result, the handle 15 is connected to the rotation preventing body 20, and unnecessary rotation of the handle 15 is prevented.

It should be noted that the specific configurations of the spacing adjusting device 18 and the rotation control means according to the present invention are not limited to those of the above-described embodiment, and any modifications may be made without departing from the spirit of the present invention. Etc. are possible. For example, in the above embodiment, as described above, the shaft 7 is perpendicular to the moving direction of the holder 3 and the holder 3 and the block 9 are formed with the inclined surfaces 3a and 9a, respectively. The distance between the holder 3 and the fixed roll 6 can be adjusted.
Is perpendicular to the direction of movement of the holder 3, and the shaft 7
May be inclined at an angle corresponding to the inclined surfaces 3a, 9a to adjust the distance between the movable roll 4 and the fixed roll 6 by moving the block 9 up and down.

The distance adjusting device 18 according to the present invention
It goes without saying that the present invention can be applied not only to the movable roll 4 and the fixed roll 6 but also to other members as long as they are two members arranged in parallel. For example, by replacing the movable roll 4 with an anvil roll and replacing the fixed roll 6 with a horn for applying an ultrasonic wave, the distance adjusting device 18 according to the present invention is provided.
May be used for adjusting the distance between the anvil roll and the horn of the ultrasonic wave application device.

[0023]

As described above, according to the present invention, the interval between two juxtaposed members can be adjusted with high accuracy by a simple operation of rotating a handle.

[Brief description of the drawings]

FIG. 1 is a side view showing an example of a structure of a gap adjusting device according to the present invention.

FIG. 2 is a partial side view showing an example of the structure of a block in the interval adjusting device according to the present invention.

FIG. 3 is a partial side view showing an example of a structure of a rotation control unit in the interval adjusting device according to the present invention.

[Explanation of symbols]

 Reference Signs List 3 Holder 3a Inclined surface (surface facing block) 4 Movable roll (member) 6 Fixed roll (member) 9 Block 18 Interval adjustment device

Continued on the front page (72) Inventor Sumi Sasaki 1-4-16 Nibashi-bakucho, Chuo-ku, Tokyo Fujimori Industries Co., Ltd. F-term (reference) 3F103 AA03 BA21 BA25 3J103 AA02 CA64 FA15 FA18 FA26 GA02 GA24 GA27 4F204 AG01 AG03 AH54 AK01 AR07 FA06 FB02 FB11 FG02 FN08 FN11 FN15 FN25 FQ09 FQ32 FQ35 FW41 4F211 AG01 AG03 AH54 AK01 AR07 TA01 TA13 TC05 TD11 TH06 TN09 TN22 TQ03 TQ05 TW41 5H303 AA01 AA02 BB01 DD03 DD03

Claims (6)

[Claims] 1. A device for adjusting a distance between two members arranged side by side, comprising: a holder that supports a member located on one of the members and is capable of approaching and separating from the other; A block positioned on the other side of the holder, for regulating the movement of the holder to the other side, wherein the block is movable in a direction crossing a surface of the holder facing the block, The amount of movement of the holder to the other side by tilting the opposing surface at a predetermined angle with respect to the moving direction of the block and changing the contact position between the opposing surface and the block along the moving direction of the block. Wherein the distance between the two members is adjusted. 2. The block is screwed into a male screw portion extending along the moving direction of the block, and is movable along the extending direction of the male screw portion by rotation of the male screw portion. The distance adjusting device according to claim 1, wherein the distance is adjusted. 3. A display unit for displaying, on at least one of the opposing surface and the opposing portion of the block with the opposing surface, an indication of the amount of movement of the block relative to the holder or the distance between the two members. The distance adjusting device according to claim 1, wherein 4. The apparatus according to claim 1, wherein one of said two members is a movable roll and the other is a fixed roll.
4. The distance adjusting device according to any one of items 3 to 3. 5. The method according to claim 1, wherein the movable roll and the fixed roll are for heat-sealing a sheet-shaped or film-shaped article sandwiched between the movable roll and the fixed roll. Item 5. An interval adjusting device according to Item 4. 6. The gap adjusting device according to claim 4, wherein the movable roll is an anvil roll, and a horn for applying ultrasonic waves is provided in place of the fixed roll.