JPH0515480Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" The present invention is intended to produce a lid body made of synthetic resin for package cages using a mold device, a punching device, a Thomson knife device, a presser device, and a suction device. When molding the lid material automatically and continuously through a machine, etc., it is necessary to reliably and flatly supply the lid material to each of the above-mentioned devices, and to correspond to the widthwise dimension (hereinafter referred to as width dimension) of the lid material. Several types of lid bodies with different width dimensions that allow adjustment of the effective conveyance width of the delivery roll and endless chain.

``Prior art and its problems'' Conventionally, sheet-shaped lid materials made of this kind of synthetic resin have a flat surface without wrinkles, unevenness, etc. (hereinafter simply referred to as wrinkles, etc.), and have a fixed size. In order to automatically and continuously mold standardized lids, it is necessary to reliably and automatically supply fixed lengths intermittently. This is naturally required even when the width dimensions of the two are different. Devices for this purpose have the following structure.

Namely, there are known structures such as a combination of an endless chain with a large number of needles protruding from both ends in the direction of movement and a guide roll attached to the endless chain, and other structures that simply involve a pair of rolls biting into each other. It is being

However, if this type of lid material, which is made of sheet-like transparent resin and is prone to wrinkles, is to be transported through a device with a conventional structure, there are many problems with the conventional structure. It is a place. For example, in the endless chain system, needles protruding from the endless chain are used to pierce both ends of the lid material and convey it. Therefore, when the needle is pierced, both ends are not necessarily pierced uniformly, and are often pierced with deviations in either direction. In this case, wrinkles etc. are likely to occur in the lid material, and the initial purpose cannot be achieved at all. Furthermore, in the pair of roll method, there is a risk that the lid material may slip on its front and back surfaces due to the difference in peripheral speed of both rolls. This causes problems such as the lid material becoming wavy or wrinkled, causing trouble in each process, and it is impossible to expect a beautiful lid with commercial value. .

On the other hand, in conventional conveying devices of this type, the width dimension of the endless chain and the width dimension of the delivery roll are generally constant, so it can be readily adapted to molding lid bodies from lid materials with different width dimensions. There is a problem with not being able to do it.

``Means for Solving the Problems'' In view of the above, the present invention has been developed to provide lid materials that can be smoothly supplied in a so-called flat shape without wrinkles or the like on the lid material, and that can be applied to several types of lids with different width dimensions. This system provides a transportation device for package lids that can be adapted to various body materials, and its gist is that the lid material is fed out from a supply roll through a feeding device, and then processed through various devices such as molding, cutting, and separation into finished products. In an automatic molding device for packaging lids, the lid is separated into a packaging lid and a piece of residual material, and the lid is stored through a take-out device, and the residual material piece is wound around a take-up roll. The two endless chains stretched between the feeding device and the separating device are configured so that the widthwise interval of the endless chains can be varied, and specifically, the two endless chains are slid on the frame. The gear is tensioned between a set of sliding support plates that are provided in the same way as possible, and a gear that is provided on each support shaft supported on the set of sliding support plates and that slides together with the sliding support plates. The distance between the endless chains in the width direction can be changed as the sliding support plate slides. The width dimension of the delivery roll provided above the starting end of the two endless chains can be changed. Specifically, this delivery roll has a sliding support plate slidably provided on the frame, and a sliding support plate that is slidably provided on the frame. It is composed of a roll constituent shaft provided on a sliding support plate, several plate-shaped roll constituent members slidably provided on this roll constituent shaft, and a spring provided on this roll constituent member. The spring is expanded and contracted in response to the sliding of the dynamic support plate in the width direction of the roll, and the spacing between the roll constituent members is varied, thereby varying the width dimension of the delivery roll to match the spacing in the width direction of the endless chain. It is characterized by having a configuration that can be used.

"Function" Next, to explain the function of the present invention, the lid material fed out from the lid material supply roll through the feeding device is held at its feeding length by the weight of the weight roll as the presser plate rises. Moreover, since this weight roll is held in a horizontal state, the lid material does not have wrinkles, unevenness, etc.
And it is rolled out in a uniform state.

In this way, the lid material unwound in a uniform state without wrinkles or the like is supplied between the endless chain and the delivery roll that rotates simultaneously at the same circumferential speed as the endless chain. In this case, since the endless roll and the delivery roll are rotated simultaneously at the same circumferential speed, the fed-out lid material is reliably conveyed forward, and there is no occurrence of wrinkles, etc. that can cause trouble. becomes. Then, after being conveyed for a predetermined length, both the endless chain and the delivery roll stop their rotation, and at the same time, the conveyance of the lid material is stopped.

On the other hand, when trying to mold a lid using lid materials with different widths, it is necessary to change the widthwise spacing of the endless chain and the width of the delivery roll. In this case, the adjusting screw shaft is rotated, and through the rotation of the adjusting screw shaft, the sliding support plates screwed onto the threaded portions at both ends of the adjusting screw shaft are slid inwardly or outwardly, respectively. With the sliding movement of the sliding support plate, the gears constituting the gear mechanism of the endless chain move inward or outward, so that the endless chain stretched between the gears moves inwardly or outwardly. It moves inwardly or outwardly with respect to the frame, thereby changing the widthwise dimension of the endless chain. As this sliding support plate slides, a spring interposed between the roll constituent members of the delivery roll supported on this sliding support plate is contracted or expanded. The roll components, whose spacing is adjusted, slide along the roll axis.
Ultimately, the width dimension of the delivery roll is expanded or contracted through such sliding movement of the roll constituent members.

``Example'' Next, an example of the present invention will be described in detail based on the drawings. 1 is a frame;
On the starting end side (on the right side in the top view of the drawing), there is a lid material supply roll 2 which rotates intermittently via a feeding device 7, which will be described later, and on the terminal side (on the left side in the top view of the drawing), a lid material supply roll 2 is provided via a motor (not shown). A single take-up roll 3 for residual material that rotates intermittently is provided. Then, this lid material supply roll 2
A feeding device 7 consisting of a pressure plate 5 and a weight roll 6, which are pressed by the piston rod of the cylinder 4, is provided in front of the cylinder 4. When the pressure plate 5 of the feeding device 7 is lowered, the feeding device 7 The existing lid material A is pushed down, and new lid material A is fed out through the rotation of the lid material supply roll 2. Then, when the weight roll 6 reaches its lowering limit, a predetermined length of the lid material A is placed there.
is rolled out. Then, the pressing plate 5 rises through the retreat of the piston rod of the cylinder 4, allowing the drawn-out lid material A to be transferred in the forward direction. Specifically, when a tensile force stronger than the weight of the weight roll 6 is applied to the lid material A, the weight roll 6 is lifted and at the same time the lid material A is transferred in the forward direction. be. Note that this feeding device 7 also serves as a tension adjustment device. In this way, the fed-out lid material A is made of two strips arranged in front of the feeding device 7 and in parallel in the advancing direction of the lid material A, the widthwise interval B of which is adjustable. It is supplied to endless chains 8 and 9.

A gear mechanism C that constitutes the endless chains 8 and 9 and is located on one side of the so-called starting end side (on the right side in the top view of the drawing) is configured as follows.
That is, fixed support plates 11, 1 fixed to the frame 1
2, a support shaft 13 having a spline groove extending between these fixed support plates 11 and 12, and this support shaft 13.
Sliding support plates 14 and 15 equipped with gears 8a and 9a that slide and move while being guided by spline grooves.
and an adjustment screw shaft 1 with opposite threads on the left and right sides that slide the sliding support plates 14 and 15 inward or outward.
6, and a gear 16a fixed to this adjustment screw shaft 16.
and a drive means 17 such as a motor or chain that controls the rotation of the gear 16a. Therefore, the gear 16a as well as the adjusting screw shaft 16 are rotated in either direction via the drive means 17. The sliding support plate 1 engages with the adjustment screw shaft 16 by this rotation.
Assuming that 4 and 15 are inward (the same goes for arrows inward from the state in Figure 2) or outward (not shown, but inward from the state in Figure 2, then outside the state shown in the figure) When the gears 8a and 9a slide along the sprunn groove of the support shaft 13, the gears 8a and 9a slide along the sprunn groove of the support shaft 13. As described above, the interval B in the width direction of the endless chains 8, 9 on the starting end side can be adjusted by sliding the gears 8a, 9a inward or outward. The gear mechanism C', which constitutes the endless chains 8 and 9 and is located on the other so-called terminal end side (on the left side when viewed upward in the drawing), is It is structured as follows. That is, the fixed support plate 2 fixed to the frame 1
1 and 22, a support shaft 23 having a spline groove extending between the fixed support plates 21 and 22, and a sliding slide equipped with gears 8b and 9b that slide on the support shaft 23 and are guided by the spline grooves. Dynamic support plate 2
4, 25, an adjusting screw shaft 26 with opposite threads on the left and right sides for sliding the sliding support plates 24, 25 inwardly or outwardly, and a gear 26a fixed to the adjusting screw shaft 26. , and drive means 27 such as a motor and a chain that control the rotation of the gear 26a. The adjustment method is the gear mechanism C on one side mentioned above.
Since it is the same as that, its operation and operation will be omitted.
The gear mechanism C' on the terminal side can also be formed by other mechanisms, such as an adjusting screw shaft 26 supported on the frame 1 and a gear 26 fixed to the adjusting screw shaft 26.
a, and a driving means 27 for driving this gear 26a.
and gears 8b and 9b that slide along the spiral groove or thread of the adjusting screw shaft 26, and the gears 8b and 9b slide inwardly or outwardly through the rotation of the adjusting screw shaft 26. A structure that moves dynamically can be considered.

In the figure, reference numeral 30 denotes a delivery roll disposed on the starting end side of the endless chains 8 and 9;
0 is a gear mechanism C of the endless chains 8 and 9.
The structure and parts thereof are the same. That is, fixed support plates 11 and 12, sliding support plates 14 and 15,
A support shaft 13, an adjustment screw shaft 16, a gear 16a,
The driving means 17 and the like have the same functions.
This configuration includes a roll-forming shaft 31 spanned between the sliding support plates 14 and 15, and a roll-forming shaft 31 extending between the sliding support plates 14 and 15.
1, a plurality of plate-shaped roll members 32 are supported at appropriate intervals, and the mutual spacing D between the roll members 32 is interposed between the roll members 32.
Alternatively, it is composed of a spring 33 that adjusts the distance D between the roll constituent member 32 and the roll side plate 34, and roll side plates 34 provided at both ends of the roll constituent shaft 31. Therefore, as mentioned above, the sliding support plate 14,
15 slides inward or outward of the frame 1 along the adjusting screw shaft 16, the spring 33 is compressed or restored, thereby causing each roll component 3
2 or the distance D between the roll component 32 and the roll side plate 34 is reduced or restored,
The width dimension E of the delivery roll 30 is long or short. For example, from the example shown in FIG. 2, when the sliding support plates 14 and 15 slide inward as shown by the arrows, the roll side plate
When the spring 33 is compressed via the roll component 32, the distance D between each roll component 32 or the distance D between the roll component 32 and the roll side plate 34 is compressed, and the ultimate delivery roll is compressed. The width dimension E of 30 is reduced. As described above, in accordance with the adjustment of the widthwise interval B between the endless chains 8 and 9, the width dimension E of the delivery roll 30 is also adjusted at the same time. The roll side plates 34, 34 are provided so as to be in sliding contact with the endless chains 8, 9, and the needles 19 provided in the endless chains 8, 9 are inserted into grooves (not shown) provided on the periphery thereof. The structure is such that In the figure, 20 is a motor for driving the endless chains 8 and 9.

Reference numeral 35 denotes a heating type heater provided slightly in front of the delivery roll 30. In this example, the heating type heater 35 is of a hot water preheating type, and keeps the supplied lid material A at a substantially constant temperature (particularly This is to avoid rapid heating caused by the adjacent preheating heater 36 and to prevent uneven heating and wrinkles. The heating type heater 35 and the preheating heater 36 constitute a preheating device, and the heating type heater 35 is installed as necessary.

Reference numeral 37 denotes a mold device for the embossing process which has predetermined irregularities and is disposed in front of the preheating heater 36. The upper and lower molds move forward and backward via piston rods of cylinders 38 and 39, and the upper and lower molds are combined or separated. It is configured to do this.

Reference numeral 40 denotes a perforating device for opening a small hole (not shown) for suspending a package cage, which is disposed in front of the mold device 37, and each of these devices is inserted between the endless chains 8 and 9 in the order described in detail. They are provided at predetermined intervals.

Reference numeral 41 refers to cutting the lid body G formed in the embossing process and the residue material piece F, which is disposed between the endless chains 8 and 9 and the residue material piece take-up roll 3, leaving a small connecting part. This Thomson knife device 4 is incorporated into the cutting and forming process.
An upper die 41a having a Thomson blade (not shown) forming part 1 moves up and down by the action of a piston rod of a cylinder 42. As a result, the lid prototype molded between the Thomson blade and the lower die 41b is cut from a predetermined outer dimension, leaving a small connecting portion as described above.

In the figure, reference numeral 42 denotes a holding device that constitutes the removal process of the lid G disposed in front of the Thomson cutter device 41. This holding device 42 moves up and down as the piston rod of the cylinder 43 advances and retreats, and at its lower limit, the remaining material is removed. Piece F is held between a lower plate (not shown).
In this clamping state, the suction thin tube 44a of the suction device 44 located above the holding device 42 moves forward of the piston rod of the cylinder 45, so that the horizontal portion of the lid G (horizontal portion other than the convex portion of the lid G formed in the previous process) ), and when the suction tube 24a is raised through the retraction of the piston rod of the cylinder 25 in the suction state, it is integrated with the residual material piece F through a slight connection part. The lid G that is currently in place is cut and pulled up. As a result, the lid G is cut from the residual material piece F, a regular lid G is formed here, and then the suction device 44
is rotated 90 degrees in the forward direction by a rotating device (not shown). Thereafter, as the piston rod of the cylinder 45 moves forward, the lid G is laterally stacked on the intermediate shelf 46 disposed above the frame 1 in the forward movement direction.

Subsequently, when the suction device 44 returns to its original position through release of suction and its retreat (retreat of the piston rod of the cylinder 45) and 90-degree reversal, the holding device 42 is raised through the advancement of the piston rod of the cylinder 43. Then, the pressure on the residual material piece F is released.

Reference numeral 47 denotes a tension adjusting device disposed in front of the step of taking out the lid G, which mainly controls the residual material piece F with the lid G and the residual material piece F located between the endless chains 8 and 9 and the residual material piece take-up roll 3. The purpose is to adjust the tension of the residual material piece F to ensure reliability in cutting, separating, and winding. Next, with this invention, the lid body G
For convenience, the process of molding one lid G will be described in detail in order.

That is, the lid material A, which is transparent and has an appropriate thickness and is made of synthetic resin and is wound around the lid material supply roll 2 and will become the package lid, is fed out via the feeding device 7. This fed-out lid material A extends over two endless chains 8 and 9 that are arranged at a certain distance slightly ahead of the lid material supply roll 2, and furthermore, both end edges thereof is engaged with a large number of protrusions or needles 19 protruding from the two endless chains 8 and 9, and is a roll component member constituting the delivery roll 30 that simultaneously rotates at the same circumferential speed as the two endless chains 8 and 9. 3
2. As a result, the lid material A
is intermittently moved forward at substantially the same speed as the endless chains 8, 9 as the endless chains 8, 9 and the delivery roll 30 rotate intermittently at the same time.

In addition, so that there is no difference between the amount of the lid material A that is sequentially fed out from the lid material supply roll 2 and the amount of transport due to the forward movement by the two endless chains 8 and 9, A feeding device 7 is provided between them, and is configured to always maintain a constant conveyance amount and tension. Also, two endless chains 8, 9 and a delivery roll 30
By stopping the rotation for a predetermined time, the conveyance of the lid material A is stopped for a predetermined time, and specifically, during this stop time, each processing operation by each of the following devices is
That is, various devices such as stamping by the mold device 37, drilling holes such as hanging holes by the punching device 40, and cutting by the Thomson knife device 41 are operated, and each device is responsible for its respective functions.

In this way, the lid material A moves forward, and then during the predetermined period of stoppage, the aforementioned preheating device, embossing device, cutting and molding device, cutting and taking out device, etc. are individually operated, In other words, the lid G is sequentially molded through intermittent transfer and stop of the lid material A, the lid prototype, the lid G, the residual material piece F, etc., and the simultaneous processing of each of the above-mentioned devices. For example, the lid G can be formed efficiently and automatically through continuous integrated operations such as intermittent supply of lid material A, lid prototype plate, etc., molding and removal of the lid G, and automatic winding of the residual material piece F. I can do it. The adjustment of the widthwise distance B between the endless chains 8 and 9 and the adjustment of the width E of the delivery roll 30 are as described above, so their explanation will be omitted.

``Effect of the invention'' As detailed above, the present invention has two endless chains stretched through a gear mechanism at the starting end and the ending end provided in the frame, so that the interval in the width direction can be adjusted. Since the width of the feed roll provided at the starting end of the endless chain is adjustable, this device is equipped with several types of lids with different widths. It has features such as being able to support materials and being able to mold lids of various sizes.
Furthermore, if the widthwise spacing of the two endless chains and the width dimension of the delivery roll are adjusted by the structure of the adjusting screw shaft and the support shaft, the adjustment can be made reliably and easily, and can be adjusted quickly and smoothly. This makes it possible to work. Furthermore, the lid material that is fed out intermittently or the like is conveyed through two endless chains arranged in the forward direction and the roll component of the feed roll that rotates simultaneously at the same circumferential speed. This has the effect of being able to transport or stop the sheet-shaped lid material reliably and quickly, and allows for smooth lid molding work without any wrinkles occurring in the lid material during conveyance. The occurrence of other troubles that cause quality deterioration can be completely eliminated. Furthermore, the smooth flow of processing operations is ensured through the smooth supply of lid material.

Furthermore, since a certain length of the lid material, etc. is transferred forward via two endless chains and a delivery roll, it is possible to ensure uniformity of the lid dimensions and to improve the yield.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a schematic diagram showing an example of an automatic lid forming apparatus that is most suitable for the lid material fixed-length conveying device of the present invention, and FIG. FIG. 3 is an enlarged front view showing two endless chains and a delivery roll on the starting end side, and FIG. 3 is a perspective view of the main part of FIG. 2. 1... Frame, 2... Supply roll, 3... Winding roll, 4, 38, 39, 42, 43, 4
5... Cylinder, 5... Pressing plate, 6... Weight roll, 7... Feeding device, 8, 9... Endless chain, 8a, 9a, 8b, 9b, 16a, 26a
... Gear, 10 ... Frame, 11, 12, 2
1, 22... Fixed support plate, 13, 13... Support shaft, 14, 15, 24, 25... Sliding support plate, 1
6, 26...adjustment screw shaft, 17, 27...driving means, 19...needle, 20...motor, 30...feeding roll, 31...roll constituent shaft, 32...roll constituent member, 33... Spring, 34... Roll side plate, 35... Warming type heater, 36... Preheating heater, 37... Mold device, 40... Perforating device, 4
1...Thomson knife device, 41a...Upper mold, 41
b...lower mold, 42...pressing device, 44...adsorption device, 44a...adsorption tube, 46...shelf, 47...
Tension adjustment device, A... Lid material, B... Spacing in the width direction, C, C'... Gear mechanism, D... Spacing, E...
Width dimension, F...residual material piece, G...lid body.

Claims (1)

[Scope of Claim for Utility Model Registration] Lid material fed out from a supply roll through a feeding device is separated into a finished package lid and residual material pieces through various devices such as molding, cutting, and separation. In an automatic packaging lid forming apparatus configured to store the lid through a take-out device and wind the residual material pieces around a take-up roll, the lid is stretched between the feeding device and the separating device. The two endless chains are movably mounted on the frame so that the interval in the width direction of the endless chains can be varied, and the delivery roll provided above the starting end of the two endless chains is In an automatic molding device for a lid for a package, the width direction dimension is variable and the structure is adapted to correspond to the widthwise spacing of the endless chain. Equipment to be transported. A sliding support plate on which the delivery roll is slidably provided on the frame, a roll-forming shaft provided on this sliding support plate, and several plate-shaped rolls slidably provided on this roll-forming shaft. Components and
The spring is configured to expand and contract in response to the sliding of the sliding support plate in the width direction of the roll, thereby varying the interval between the roll components, thereby increasing the width of the delivery roll. An apparatus for conveying several types of lid materials having different width directions in an automatic molding apparatus for package lids according to claim 1, which is characterized in that the width dimension is variable. A set of sliding support plates on which the endless chain is slidably provided on the frame, and a gear provided on each support shaft supported on the set of sliding support plates and sliding together with the sliding support plates. Claim 1 of the utility model registration claim, wherein the chain is stretched between the chain and the endless chain is stretched between the chain and the endless chain is configured so that the interval in the width direction of the endless chain can be changed as the sliding support plate slides. An apparatus for conveying several kinds of lid materials having different width directions in the automatic molding apparatus for package lids according to item 2.