JPH0790708A - Lower mold apparatus in hook-driving machine - Google Patents

Abstract

PURPOSE:To surely operate a lower mold apparatus for holding a rear seat plate as a cushion, improve finishing of a product, prevent a spring from happening of accident and improve durability of the apparatus in an apparatus for driving hock for clothing. CONSTITUTION:A movable supporting plate 5 in which a recessed part 6 for holding the rear seat plate is provided so as to freely enable lifting or lowering on this fixing plate 1 by a slide shaft 10 which penetrates through the fixing plate 1 and the lower end of the slide shaft 10 is pressed upward by a flat spring 12 attached to the lower face of the fixing plate 1. A protruded part 3 whose upper face is formed as a guide face 3' whose center is downward curved is provided in the fixing plate 1 and this protruded part 3 is constituted so as to protrude and retreat on the upper side from an inserting hole provided in the movable supporting plate 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hook-and-hook tool for clothes, which is provided to face an upper mold which is driven up and down while holding a hook male body having a mounting claw protruding from its rear surface. The present invention relates to a lower die device that holds a back plate, which is integrally coupled with a male body with a cloth interposed therebetween, in a state in which a nail of the male body can be driven and bent.

[0002]

2. Description of the Related Art Conventionally, as a lower mold apparatus of this type, FIG.
The movable support plate 18 having a recess 18 'into which the back seat plate b is fitted is formed by the through hole 1 formed in the recess 18', as shown in FIG.
8'is attached to a fixed plate 19 provided with a convex portion 19 'which bends and guides a nail a'of a male body a of a hook hook which is engaged and driven through a coil spring 20, and As shown in FIG. 8, the holding member 22 of the back seat plate b is formed in a leaf spring shape, and the rear end of the holding member 22 is swingable so that the holding member 22 can be swung.
Some of them are mounted on the fixed plate 23 provided with the same convex portion 23 'as described above.

In the former, when the movable support plate 18 biased upward by the spring 20 receives a pressing force of a certain amount or more, the movable support plate 18 descends to absorb the shock during the driving operation, and at the initial stage of the operation, The claw a ′ is pressed against the backing board b side at the end of the work without impeding the penetration and bending of the claw a ′, thereby enabling the male body a to be tightly coupled. That is, at the start of work, when the male body a held by the upper mold (not shown) is driven downward, first, the claw a'projected on the back surface of the male body a'is driven.
Penetrates through the cloth (not shown) of the garment and the backing board b, and is inwardly bent along the curve (not shown) formed on the upper surface of the convex portion 19 'of the fixing plate 19 in contact with the upper surface thereof. . At this time, since the movable support plate 18 is kept in the upper position shown by the urging force of the spring 20, a certain amount of space is maintained between the back surface of the back seat plate b and the convex portion 19 ′ of the fixed plate 19. Has been done. Then, when the upper mold is further lowered and a pressing force is applied, the movable support plate 18 is pressed down against the urging force of the spring 20, whereby the convex portion 19 ′ of the fixed plate 19 is relatively moved.
Is projected onto the movable support plate 18, and the claw a ′ of the male body a is strongly pressed against the back surface of the backing plate b. Therefore, the male body a
The back seat plate b is integrally caulked with the cloth sandwiched therebetween.

The latter is a holding member 22 having a spring property.
However, in the early stage of the driving operation, the back seat plate b is held at the upper position so as not to prevent the penetration and bending of the claw a ′ of the male body a, and the pressing force is applied from the upper mold in the final stage of the operation. In the state, it bends downward to absorb the shock and strongly press the male body a and the back seat plate b between the convex portion 23 'of the fixing plate 23 as in the former conventional example to firmly connect them. It is the one.

Reference numeral 21 in FIG. 7 holds a guide screw for holding the movable support plate 18 so that it cannot be removed and guides its ascending / descending operation. Reference numeral 24 in FIG. 8 indicates that the holding member 22 is the back seat plate b. 7 shows a connecting pin that prevents it from being pulled up together.

[0006]

In the lower die device in the above-mentioned conventional hook-and-hook driving machine, first, the former elastically holds the movable support plate by a small coil spring interposed between the former and the fixed plate. Because of the constitution, it is winning because of its lack of bias.
In addition, the coil spring has a tendency to set quickly, and early maintenance is required to maintain its function. Further, this lower mold has a problem that it is difficult to replace the spring at the time of assembly or repair because a coil spring having a large spring constant is used and parts of each part are fine.

Further, in the latter, since the holding member for the back plate is a large leaf spring, it has a sufficient biasing force and is easy to assemble, but the holding member is attached to the fixed plate. Since the rear end is used as a fulcrum to rotate,
Since the backing plate does not move in parallel and a smooth driving operation cannot be performed, there is a possibility that the cloth may be pulled when the male nail penetrates. Further, since the holding member itself bends in a state where the back seat plate is fitted in the recess, there is a risk that the back seat plate will be tightly fitted in the recess, and smooth work cannot be performed. After the work was completed, the holding member could be inadvertently broken when pulling up the cloth into which the hook was driven. In the case of further breakage, the holding member in which the recess into which the backing board is inserted and the through hole into which the convex portion of the fixing plate is formed must be replaced in its entirety, which increases the maintenance cost. Had.

An object of the present invention is to solve the problems of the conventional lower mold described above.

[0009]

According to the present invention, a lower device of a hook-and-hook driving machine is provided with a fixing plate having a convex portion whose upper surface is a guide surface curved downward and a guide hole, and a back plate. A movable support plate having a recess into which the seat plate fits and an insertion hole into which the convex portion engages, a slide shaft that is inserted into the guide hole and attached to the movable support plate, and is attached to the lower surface of the fixed plate. The above-mentioned problem is solved by urging the movable support plate, which is composed of a leaf spring and is attached to the fixed plate so that it can be moved up and down by the slide shaft, by the leaf spring that is in contact with the lower end of the slide shaft. Settled.

[0010]

The slide shaft, which is inserted into the guide hole of the fixed plate and is attached to the movable support plate, holds the movable support plate so that it can be moved up and down by the convex portion engaged with the insertion hole of the movable support plate. The leaf spring abutting the lower end of the slide shaft biases the movable support plate upward with a predetermined pressure.

[0011]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention. As shown in the figure, the lower die device in the hook-and-hook driving machine of the present invention has a convex portion 3 that bends and guides the nail of the male body to be driven.
A movable support plate 5 for holding a backing plate b connected to the male body, a slide shaft 10 having a flange 11 at the lower end, and a leaf spring 12. .

The fixed plate 1 is mounted so as to project in an L-shape on the support base 16 when seen in a plan view, and a recess 2 into which the movable support plate 5 can be inserted is formed near the tip thereof, and inside the recess 2. A convex portion 3 whose upper surface is a guide surface 3 ′ whose center is curved downward and a guide hole 4 into which a slide shaft 10 described later is slidably engaged are provided. In addition, the movable support plate 5
Is a recess 6 having substantially the same shape as that of the backing plate b, and an insertion hole 7 into which the convex portion 3 is fitted, which is inserted into the guide hole 4. It is connected to the slide shaft 10 with a screw 14 and is attached to the fixed plate 1 so as to be able to move up and down. A leaf spring 12 is attached to the lower surface of the fixed plate 1 by a screw 15 so that its tip can swing, and the lower end of the slide shaft 10 is pressed upward.
It should be noted that it is desirable to use the leaf spring 12 whose tip is slightly warped upward because it comes into close contact with the lower end of the slide shaft 10 when attached. FIG. 2 shows the lower mold device assembled in this way, and FIG.
It is an A'line sectional view.

In FIG. 1, reference numeral 8 indicates the insertion hole 7 described above.
Locking pieces 9, 9 and 13 projectingly formed at both ends of the female screw holes are female screw holes into which the screws 14 and 15 are screwed, respectively.

Further, FIG. 5 shows a male body a and a back seat plate b of a hook hook which are connected and fixed by the device of the present invention.
When driven, the pair of claws a'and a'protruded on the back surface penetrate the cloth (not shown) of the garment and the thin portions b'and b'of the backing board b, and the back surface side thereof is driven. By being bent to be integrally fixed to the back seat plate b,
In this way, the male body a attached to the predetermined position of the clothes
In the same manner, the cloth is sandwiched between the back seat plate d and the female body c (see FIG. 6) fixed to the other side of the clothes to form a pair of hooks and hooks that can be hung and removed from each other. .

Next, the operation of the lower mold device of the present invention having the above-mentioned structure will be described. First, as shown in FIG.
Is fitted into the recess 6 of the movable support plate 5, and then clothes (not shown) are put on the upper side of the movable support plate 5 in accordance with its mounting position. In this state, when the upper die 17 holding the male body a of the hook is lowered by a drive mechanism (not shown), first the male body a
A'protruding on the lower end of the pierce through the cloth of the garment interposed between the lower mold and the lower mold, and then penetrates the thin portion b'of the backing board b. At this time, both ends of the thin portions b ′ and b ′ through which the claw a ′ penetrates the backing plate b are the locking pieces 8 of the movable support plate 5, respectively.
Since it abuts against and is held, it does not deform. Then, the tips of the left and right claws a ′, a ′ penetrating the backing plate b eventually come into contact with the upper surface of the convex portion 3 of the fixed plate 1, and are inwardly inwardly along the guide surface 3 ′ formed here. Be bent.
In the above steps, the movable support plate 5 biased upward by the leaf spring 12 is in the initial state as shown in FIG. 3 generally against the downward pressing force of the upper mold 17 except when the impact force is applied. Keep
Since a certain amount of gap is formed between the backing plate b and the convex portion 3, it does not hinder the above-mentioned penetration and bending of the claw a ′. Then, when the upper mold 17 is further lowered, the movable support plate 5 held by the fixed plate 1 so as to be able to move up and down by the slide shaft 10 is eventually subjected to the urging force of the leaf spring 12 pressing the lower end of the slide shaft 10. By being pushed downward, the convex portions 3 of the fixed plate 1 relatively project onto the movable support plate 5. Therefore, the claw a ′ of the male body a bent inward is strongly pressed upward by the convex portion 3 and caulked to the back seat plate b, whereby the male body a of the hook-and-hook is back seat plate b. The cloth (not shown) is clamped between and to be securely fixed to a predetermined position of the clothes. Further, the lowering of the movable support plate 5 also alleviates the impact applied to the lower mold at the end of the work. Then, when the upper die 17 is pulled up by a driving mechanism (not shown) after the driving is performed in this manner, the male body a held by the upper die 17 is woven between the back seat plate b and the connected back seat plate b. Since the male body a can be pulled up by sandwiching the male body a with the clothes, the male body a can be pulled out forward from the upper mold 17 in this manner, and in this manner, a series of hook hook driving operations are completed. At this time, the downward pressing force applied to the movable support plate 5 also disappears at the same time, so that the movable support plate 5 returns to its original state by the urging force of the leaf spring 12, and the next work becomes possible.

As described above, in the lower die device of the present invention, the back seat plate on which the male body of the hook and hook is driven is buffered by the movable support plate which can be moved upward and downward by the leaf spring, and is driven. It absorbs the impact at the time, guides the bending of the claws, and caulks the end plate.

[0017]

As described above, in the lower die device of the hook-and-hook driving device of the present invention, the movable support plate holding the back seat plate moves up and down horizontally, so that the driving work is smoothly performed, Tightness is less likely to occur when the nails of the body penetrate the fabric, and the product with the hook hook attached thereto has a good finish.
Further, unlike the conventional device, the recess into which the backing plate is fitted does not bend or deform, so that it can be easily taken out from the recess after work, and accidental accidental breakage of the spring can be prevented. It In addition, the structure is simple, so it is easy to assemble, and when the function deteriorates, it is only necessary to replace the leaf spring with a simple shape, which facilitates repair and reduces the cost. Exerts the excellent effect of.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 is a perspective view of the same as above, in an assembled state.

3 is a cross-sectional view taken along the line A-A ′ of FIG.

FIG. 4 is a perspective view showing a usage state of the embodiment.

FIG. 5 is an exploded perspective view of a male hook and a back seat plate.

FIG. 6 is an exploded perspective view of a hook-and-hook female body and a back seat plate.

FIG. 7 is a sectional view of a conventional example.

FIG. 8 is a cross-sectional view of another conventional example.

[Explanation of reference numerals] 1 fixed plate 2 concave portion 3 convex portion 3'guide surface 4 guide hole 5 movable support plate 6 recessed portion 7 insertion hole 8 locking piece 10 slide shaft 11 collar edge 12 leaf spring

Claims (1)

[Claims] 1. A recess for receiving and holding a backing plate to which a male body of a hook-and-hook is fitted and held, on a fixing plate having a convex portion whose upper surface is a guide surface curved downward at the center and a guide hole. A movable support plate having an insertion hole with which the portion engages is attached so as to be able to move up and down by a slide shaft inserted through the guide hole, and a plate for urging the lower end of the slide shaft upward is attached to the lower surface of the fixed plate. A lower die device in a hook and hook driving machine, wherein a spring is swingably attached.