JPH0644888B2 - Automatic suspending device for slipper sandals - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is mainly used in the manufacturing process of slippers such as sandals,
The present invention relates to an automatic suspending device for sticking and coating while covering an ear portion of a covering material such as vinyl leather or cloth on a core material such as a bottom base plate or a middle plate, and particularly, for a toe portion and a heel portion of the core material. The present invention relates to the automatic suspending device suitable for use in suspending work when the radius of curvature is small.

(Prior Art) Among slippers and sandals, in particular, one surface of a core material made by bonding a cushion material such as sponge and cardboard to a covering material made of vinyl leather or cloth having a larger expansion area than the core material. In the case where the peripheral edge of the covering material is hung on the peripheral edge of the other surface of the core material and is shaped so as to wrap the end surface of the core material, conventionally, the covering material is hung on the core material. Since the work is carried out exclusively by hand, there is a problem that the work efficiency is poor and the manufacturing cost rises.

In addition, in order to improve the efficiency of such covering material hanging work,
As shown in FIG. 6, horseshoe-shaped recesses for suspending the covering material at the tips of the toe side and the heel side of the placing table on which the core material (1) is placed, respectively.
Suspending plates (3) and (3) 'having (2) and (2)' and capable of reciprocating in the longitudinal direction of the core material (1) are arranged and the suspending plate ( 3), (3) 'horseshoe-shaped recesses (2), (2)' on each side, a pair of suspending arms (5) that open and close about the support shaft (4) as it moves in the longitudinal direction. The suspender provided is proposed and put to practical use. (See, for example, Japanese Utility Model Publication No. 50-4453, Japanese Utility Model Publication No. 51-9397, etc.) (Problems to be solved by the invention) However, in the conventional hanging machine described above, as shown in FIG. Horseshoe-shaped recess in which the covering material (6) corresponding to the toe (1a) and heel (1b) of the material (1) moves in the longitudinal direction of the core material (1).
Since it is suspended vertically by (2) and (2) ′, accurate suspension in the peripheral normal direction of the core material (1) cannot be performed, and each suspension arm (5), (5) ・∙ indicates opening / closing swinging around the support shafts (4), (4) distant from the center line (l) of the core material (1).
Since the covering material is hung from the side of (1), there is a drawback that the covering material (6) has wrinkles on both sides of the toe (1a) and the heel (1b) in the periphery of the core material (1). There is a problem that this tendency becomes particularly strong when the contour shape of the core material (1) has a small curvature in the toes (1a) and the heel (1b), and the appearance of the product becomes poor.

The present invention has been made by paying attention to the problem of wrinkling of the covering material on the peripheral edge of the core material that the conventional suspending machine has, and in particular, the suspension for suspending and sticking the covering material to the peripheral edge of the core material. The retractable arm is opened and closed about the center of the toe and the center of the heel of the core member holding part, and the swing center is movable in the longitudinal direction of the core member. By suspending the covering material in the normal direction over substantially the entire area, it is possible to prevent the occurrence of wrinkles in the covering material, and thereby to solve the above-mentioned problems.

(Means for Solving the Problems) The configuration of the present invention for achieving the above-mentioned object is attached to the first drawing.
FIG. 4 to FIG. 4 will be described.

The automatic suspending device of the present invention is a core material for slippers such as sandals (1)
A material placing table (13) provided with a foot-shaped holding portion (14) for placing and holding a material (S) having a covering material (6) having a larger area than the core material (1) on one surface ) And fulcrums (P) and (P) ′ on the longitudinal centerline (1) of the holding portion (14), and the fulcrums (P) and (P) ′.
A pair of hanging arms (24a), (24b), (2
4c), (24d), each hanging arm (24a), (24b), (2
4c) and (24d) are formed by the combined movement of a slight vertical linear movement along the center line (l) of the holding portion and a swing around the fulcrums (P) and (P) '. The covering material (6) is driven so as to be suspended and attached to the periphery of the other surface of the core material (1).

Further, as another feature of the present invention, the mounting table (13) described above.
Positioning means (15) for pressing and holding the material (S) placed on the holding portion (14) from the surroundings is provided on the upper surface of the.

(Operation) In the automatic suspending device of the present invention having the above configuration, the toe side and heel side suspending arms (24a), (24b), (24c), (24d) are fulcrums (P), ( In the state of swinging in the open leg direction about P) ′ and retracting outward in the longitudinal direction of the holding portion (14), that is, in the state of FIG. 2, holding of the upper surface of the mounting table (13) Department (1
After placing the material (S) on 4) and pressing and holding it from the surroundings by the positioning means (15), the suspending arms (24a), (24b), (24c), (24
The d) is moved slightly linearly inward in the vertical direction of the holding part (14), and at the same time, it is swung inward around the fulcrums (P) and (P) ', and finally each hanging arm is moved. (24a), (24b), (24c), (24d)
With the state of covering the upper surface of the peripheral portion of the core material (1), that is, the composite movement up to the state of FIG. 3, the peripheral edge of the covering material (6) is suspended and attached to the peripheral edge of the core material (1).

Thus, the product that has completed the hanging of the covering material is
By returning (24a), (24b), (24c), and (24d) to the state shown in FIG. 2 and taking them out from the holding portion (14), a new material is continuously supplied to the holding portion (14). Perform hanging work.

(Example) Hereinafter, an example of the automatic suspending device of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a front view of the automatic suspending device of the present invention, and FIGS. 2 and 3 are plan views showing an operating state of the suspending device.

In these figures, (11) is a machine base, (12) is a pillar standing on the machine base, and (13) is a flat plate-shaped material mounting table horizontally supported by the upper ends of the pillars (12). , (14) are foot-shaped holding portions formed in the center of the upper surface of the mounting table (13), and (15) are four flat holding frames (16a) that form the contour of the holding portions (14). ), (16
b), (16c), (16d) and the holding frames (16a), (16b), (16c),
The positioning means is configured to include a pressing cylinder (17) for moving the respective (16d) toward the center of the holding portion (14).

(18) is a longitudinal centerline (l) connecting the center of the toes and the center of the heel of the holding portion (14) on the lower surface of the material mounting table (13)
Guide rail members provided in parallel with (19) and (1
9) 'is a pair of front and rear slide members movably provided along the longitudinal direction of the guide rail member (18), and the slide members (19) and (19)' are vertically arranged at the lower part thereof. The support shafts (20), (20) are provided, and the support shafts (20), (20) 'provide a pair of toe-sides, a pair of heels, and a total of four L-shaped arms (2
1a), (21b), (21c), and (21d) are the horizontal portions of the support shafts (20), (2
It is supported so that it can swing horizontally with the center of (0) 'as fulcrums (P), (P)', and each L-shaped arm (21a), (21b), (21
c), L-shaped frame fixed at the upper end of (21d) orthogonally
Horizontal pins (23) penetrating the frames (22a), (22b), (22c) and (22d) are provided at the upper ends of the vertical parts of (22a), (22b), (22c) and (22d). A pair of hanging arms on the toe side and heel side
The proximal ends of (24a), (24b), (24c), and (24d) are connected so as to be able to lift.

The toe side hanging arms (24a), (24b) and the heel side hanging arms (2
4c) and (24d) are usually made of a metal material having a high thermal conductivity such as copper or brass, and the hanging allowances on the toe side and the heel side of the material (S) set in the holding part (14) by each set. It is formed in the shape of a horseshoe that covers the upper surface, and each hanging arm (24
a), (24b), (24c) and (24d) have a planar shape which is divided into left and right with a vertical centerline (1) connecting the center of the toe and the center of the heel of the holding portion (14) as a boundary. The concave curved inner side surface (25) that intersects with the center line (l) during swinging from the retracted position shown in FIG. 2 to the hanging completion position shown in FIG.
The corner portion (26) is located vertically above the fulcrums (P) and (P) ', and the corner portions (26) and (26) always rotate while being in contact with each other. .

Further, a heater for heating the hanging arms (24a), (24b), (24c), (24d) to improve the bending of the covering material (6) is built in.

On the other hand, the toe side suspending arms (24a), (24b) and the heel side suspending arms, (24c), (24d) are respectively rearward and rearwardly supported by the mounting table (13) on the rear side of the base end side. Two pneumatic actuating cylinders (27) and (27) 'are provided, and each actuating cylinder (2
7), (27) 'piston rods (28), brackets (29), (29)' attached to the tips of (28) ', and the suspension arms (24a), (24
b), (24c), (24d) L-shaped frame (22
Connecting rods (31a), (31b), (31c), and (31d) are respectively interposed between a), (22b), (22c), and (22d) and the angle (30) provided at the rear end. Has been done.

(32a), (32b), (32c), (32d) are the support arms (21
Angle attached to the outer surface of a), (21b), (21c), (21d)
(33) and each of the hanging arms (24a), (24b), (24c), and (24d) interposed between the pins (34) protruding from the outer surface of the hanging arms (24a), (24b), (24c), (24d).
When (24a), (24b), (24c), and (24d) swing in the open leg direction from the complete hanging state of Fig. 3 to the retracted state of Fig. 2, each hanging arm (24a), ( This is a pneumatic lifting cylinder for slightly lifting 24b), (24c) and (24d) to move the lower surface away from the upper surface of the material (S).

(35) and (36) are a pair of left and right swing cams fixed to the lower surface of the mounting table (13), and the swing cams (35), (36) are
The cam surfaces (35a), (35b), (36a), and (36b) before and after the cam surface (35a), (36a), and (36b) are respectively inclined at a horizontal angle of about 45 degrees with respect to the center line (l). (35b), (36a) and (36b) are engaged with the abutment bearing (37) provided at the tips of the support arms (22a), (22b), (22c) and (22d), and the support arms (22a) ), (22b),
When (22c) and (22d) horizontally rotate about the fulcrums (P) and (P) ', the suspension arms supported by the respective support arms (22a), (22b), (22c) and (22d). The retractable arms (24a), (24b), (24c) and (24d) are adapted to swing in the hanging direction, that is, in the arrow (A) direction in FIG.

Further, (38a), (38b), (38c), (38d) are the support arms.
At the rear of (22a), (22b), (22c), and (22d), the mounting table (1
The return cam fixed to the lower surface of (3), the return cam (3
8a), (38b), (38c), (38d) are cam surfaces (39a), (39b), (3).
9c) and (39d), the support arms (22a), (22b), (22
c), (22d) When the abutting parts (not shown) at the rear ends are engaged, the support arms (22a), (22b), (22c), (22d) are centered on the fulcrum (P), (P) '. Fig. 3 Swing in the direction of arrow (B).

The automatic hoisting device of the present invention has the above-described structure. Next, its operation will be described. First, as shown in FIG. 2, the piston rods (2) of the working cylinders (27), (27) '
8) and (28) ′ are contracted, the material (S) is fitted and placed on the holding portion (14) on the upper surface of the mounting table (13) with the coating material (6) sticking side down, and the pressing cylinder (17) is actuated to move the holding frame (16) toward the center and press the peripheral edge of the covering material (6) so as to closely contact the outer peripheral surface of the core material (1), and then the working cylinder.
Actuating (27) and (27) ′ to move the piston rods (28) and (28) ′
To stretch.

At this time, each of the toe side and heel side hanging arms (24a), (24a)
While b), (24c) and (24d) are open as shown in FIG. 2, they are pushed by the connecting rods (31a), (31b), (31c) and (31d), and the holding portion (14).
When the covering material (6) at the center of the toe and heel was hung on the upper surface of the peripheral edge of the core material (1), it moved to some extent along the longitudinal centerline (1) At this time, the contact bearing (37) moves the cam surfaces (35a), (35) of the rocking cams (35), (36).
b), (36a), (36b) are engaged, and the piston rod (28),
As (28) ′ extends, the hanging arms (24a), (24b), (24
Since c) and (24d) swing in the closing direction and finally reach the state shown in Fig. 3, the radius of curvature of the toe part of the core material (1) and the curvature radius at each joint between the heel part and the side surface part In the small circular portion, the peripheral edge of the covering material (6) is properly hung in the normal direction over the entire area with respect to the contour line of the core material (1) as shown by the arrow in Fig. 5, and the hanging arm (24a) is , (24b), (24c) and (24d) are sandwiched between the lower surface and the upper surface of the mounting table (13), and the adhesive is pre-applied to the core material (1) peripheral edge or the covering material (6) peripheral edge. It is pasted and fixed.

Thus, the product in which the covering material (6) is attached and fixed to the core material (1) is completed, but when taking it out from the device, first, the lifting cylinders (32a), (32b), (32c), (32d) Is operated to elevate each of the hanging arms (24a), (24b), (24c), (24d) about the pin (23), and the lower surface is separated from the upper surface of the material (S).
Working cylinders (27), (27) 'piston rods (28), (2
When 8) ′ is contracted, each hanging arm (24a), (24b), (24
c) and (24d) are pulled back by the connecting rods (31a), (31b), (31c) and (31d) and supported by the return cams (38a), (38b), (38c) and (38d). When the arms (22a), (22b), (22c), and (22d) are engaged with the abutting parts, the arms (22a), (22b), (22c), and (22d) swing in the opening leg direction, and finally the state shown in FIG. 2 is reached. In order to evacuate to the outside, hold the material (S) in this state with a suction cup carrier (not shown).
4), and another new raw material (S) may be supplied to it.

In the above example, the material (S) peripheral coating material (6)
In order to improve the hanging condition of the core material and to absorb the variation in the size of the core material (1), the holding frame (16a), (4a) that moves in the radial direction with respect to the material (S), 16b), (16c),
Although the case where (16d) is provided has been described, the holding frame (16)
Alternatively, part or all of them may be fixed, and the size of the contour of the holding portion (14) may be adjusted manually according to the size of the core material (1). .

(Effects of the Invention) As described above, the automatic suspending device of the present invention includes the material placing table having the foot-shaped holding portion on the upper surface, and the holding portion at the toe side and the heel side in the longitudinal direction of the holding portion. A toe side and a heel side each having a fulcrum on the center line and pivotally supported so as to be openable and closable relative to each other around the fulcrum as a swing center are provided with a pair of suspending arms, and each suspending arm is Since it is designed to be driven by a combined movement of a slight vertical linear movement along the center line of the holding portion and swinging about the fulcrum, during topping operation, the toe side peripheral edge and the heel are The covering material on the side edges can be hung in the normal direction over the entire circumference of the core material, preventing the occurrence of wrinkles on the end surface of the core material and greatly improving the appearance of the product. In addition to being able to improve the efficiency of lifting work, the price of slipper sandals is improved. It has an excellent effect of suppressing the soaring price.

Moreover, according to the present invention, in addition to the suspending action by the combined movement of the suspending arms, the positioning means for pressing and holding the material placed on the holding portion from the surroundings prior to the suspending operation is provided. The material can be held in the correct position even when the size of the supplied material varies, and
Since the covering material for covering the outer peripheral surface of the core material is brought into close contact with the core material in advance, it has an effect of reliably preventing the occurrence of wrinkles due to the action of the suspending arm.

[Brief description of drawings]

FIG. 1 is a front view of an automatic suspending device according to the present invention, and FIGS. 2 and 3 are plan views showing an operating state of the suspending device.
FIG. 4 is a plan view of a positioning device included in the same device, FIG.
FIG. 7 is an explanatory view showing a suspended state when the device of the present invention is used, FIG. 6 is a plan view showing an outline of a conventional suspender, and FIG.
The figure is an explanatory view showing a suspended state by a conventional suspender. (1) …… Core material, (6) …… Coating material, (13) …… Material mounting table, (14) …… Holding part, (15) …… Positioning means, (16a), (16b), ( 16c), (16d) ... holding frame, (20), (20) '... spindle, (24a), (24b), (24c), (24d) ... suspension arm, (27), ( 27) ′ …… Working cylinder, (35), (36) …… Rotating cam, (38a), (38b), (38c), (38d) …… Return cam, (P), (P) ′… … Support point, (S) …… Material, (l) …… Center line.

Claims (5)

[Claims] 1. A material mounting table having a foot-shaped holding portion on its upper surface, and a fulcrum on the longitudinal centerline of the holding portion on the toe side and the heel side of the holding portion, and the fulcrum. It comprises a pair of suspending arms each of which is pivotally supported so as to be openable and closable with respect to each other as a swing center, and each of the suspending arms is a slight vertical straight line along the center line of the holding portion. An automatic suspending device which is driven by a combined motion of a movement and a swing around the fulcrum to suspend a covering material on a core material. 2. An operating cylinder having hanging arm driving means in front of and behind the material placing table and connected to a rear end of each hanging arm,
2. The cam according to claim 1, further comprising a cam which is arranged in the moving path of the suspending arm by the operating cylinder and which opens and closes the suspending arm by engaging with the suspending arm. Automatic hanging device. 3. The automatic hoisting device according to claim 2, wherein the hoisting arm has a horseshoe shape divided into left and right with a center line of the holding portion as a boundary. 4. A material placing table having a foot-shaped holding portion on the upper surface, and a fulcrum on the longitudinal centerline of the holding portion on the toe side and the heel side of the holding portion, and the fulcrum. It comprises a pair of suspending arms each of which is pivotally supported so as to be openable and closable with respect to each other as a swing center, and each of the suspending arms is a slight vertical straight line along the center line of the holding portion. It is driven by a combined motion of the movement and the swing around the fulcrum to suspend the covering material on the core material, and at the same time, the upper surface of the material mounting table is mounted on the holding portion at the periphery of the holding portion. An automatic hoisting device, comprising: positioning means for pressing and holding the placed material from the surroundings prior to the hoisting operation. 5. A fourth aspect of the present invention, wherein the positioning means comprises a plurality of divided holding frames that form the contour of the holding portion and a cylinder that moves the holding frame toward the center of the holding portion. Automatic hanging device.