SU1405697A3 - Arrangement for shaping and installing cover into tubular container - Google Patents

Abstract

The invention relates to a device for the manufacture of containers, namely tubular containers with cr-folds with bent edges inserted into them. It allows to increase the reliability of the device. The device has a holder 8, the container pipe 1 is installed in the cat / rom. The holder has a welding ring 10. A support of 13 dL is provided above the holder

Description

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with

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the lids 5 are prepared, over which the trigger 16 is mounted, by means of which the preform is introduced into the container while bending it down is closed. The punch 16 consists of two parts - the upper 20 and the lower 18. The parts 18 and 19 of the punch are movable in the axial direction, between them there is a gland 19 arranged in the form of a ring and an elastic upper girdle 19. The upper part of the upper part and the lower part

The punch contains cup-shaped and arc-shaped surfaces that coincide with the radius of the gland 19 in its unloaded state. The bottom of the punch may be formed with a shaping surface for making a container with an inner bellows. In this case, the cap performs a protective function. 8 hp ff, 10 ill.

one

The invention relates to the production of packages, namely, devices for forming and installing a cover in a tubular package made of painting or other material, as well as for the tight connection of this cover to the inner surface of the package through heat welding at a constant temperature, high-frequency welding or ultrasonic welding. .

The purpose of the invention is to increase the reliability of the device.

FIG. Figure 1 shows a quotient container made by using the proposed device, an isometric projection; in fig. 2 is the same cross section vertically in FIG. 3 - device for molding tfyshki; in Fig. 4 — nai1 Shoy pistonj, 5-L –1Г5, pche-zy JB device design, cross section; in fig. 5 shows a part of the pressure punch at the stage of insertion of the grommet inside the container 5 in FIG. 6 - the same, during the welding operation; in fig. 7 Upper part of a cardboard container with a bellows bottom section; Fig, 8 device section; in fig. 9 is a part of the device during the welding operation of the bellows; in fig. 10 - welding of the protective cover.

The package or container made by the device of the device., Contains a sleeve made of short cardboard or similar hard material and made from a flat blank of this material,

connected by a longitudinal joint 2 In the upper part, the sleeve is provided with a zoned krppka 3, and in the lower part - with a corresponding zapper bottom. In the illustrated embodiment, the upper edge 4 of the container is rolled inward to provide an even and smooth end of the container that pokes the edge of the cap and gives the container rigidity at both ends. In the case shown, the container has the shape of a circular cylinder, but the container can be given a polygonal shape, or another cross-section, provided that the corners of the poly are rounded off. The lid and the bottom are molded from a flat, stamped blank 5, which, before pressing into the container or connecting it to the h-rub, is molded into the plane 6 of the lid with the edge of the lid extending from it circumferentially upwards (Fig. 5 and 6). It is desirable that the smallest possible amount of material is necessary for the edge of the 7th edge, for this it should be low, which also provides the largest container volume used. Since the welded-joint between the edge of the joint and the inner surface of the container is possibly closer to the plane 6 of the lower part of the roof. the edge 7 of the lid can be made lower than it was possible earlier, without damaging the container tightness.

The device shown in FIG. 3, contains a holder of 3 gi. Container

a measure that holds it during the molding of the tongue and its joining of the container with the weld. The external shape of the holder 8 is the same as the external form of the sleeve 1, but in its lower part there is a directional cone 9 facilitating the insertion of the sleeve J from the bottom of the holder. In addition, it is equipped with a welding tool JO, which represents a ring that transmits high-frequency or ultrasonic heat to the welded joint of the kryppka and / or container liner.

In order for the part of the sleeve located on top of the welding tool 10 to expand somewhat during the welding operation, it is desirable that the welding tool 10 has some conical expansion upwards. The conicity of 1 g of the welding tool 10 is almost imperceptible with the non-armed eye, since the angle of the cone is 2-6. Above the upper edge of the welding tool, the holder 8 has a cavity in the form of a parallel cylinder 12, the diameter of which coincides with the diameter of the upper edge of the welding tool 10. In this cavity 12, a protrusion can be made to limit the sleeve position of the container 3 to the holder.

A die-forming tool is mounted on top of die 8, which contains a supporting disk 13 with a hole on which the cover blank is placed, and under the supporting disk 13 there is a forming disk M with rounded upper edges 15. In order for the blank 5 to bend in a circle, it must be several more than the inner area of the sleeve 1 and the boring of the support disc 13 has a correspondingly larger size. The lid can also be molded by directly pressing inside the liner, with the result that the supporting disk and the form --- the eternal disk can be excluded.

In addition, the device includes a punch 16 and a known device for moving the punch 16 up and down to form and press Krshk to the sleeve of the container. The device 17 for moving the punch is a hydraulic or pneumatic ram or other known device.

The punch 16 contains the bottom of the pit J8, which simultaneously is

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the holder of the expandable gland 19, and the upper part 20, covering the bottom. The lower to the upper parts of the punch have the possibility of axial movement relative to each other and are made so that the gland 19 expands when the lower and upper parts of the pressure piston move towards each other, as a result of which the gland 19 expands. and the pressing surface is obtained, located as close as possible to the common zone of the flange of the krgaki 7 and the plane 6 of the lid.

The bottom part 18 of the punch has a thin bead 21 tilted outward and downward (Fig. 5 and b). In addition, the lower part 18 comprises an arcuate chute, the shape of which corresponds to the shape of expanding device 19, in its unloaded condition. This gland may be a rubber ring 23 or a ring made of another elastic material, and the groove may be in the form of a circular cylinder. Chute 22 may occupy 90-160 rubber rings. The lower end of the chute 22 directly goes into the slope: outward and downward the surface 24 of the shoulder .21. The outer diameter of the collar is so much smaller than the inner diameter of the liner 1 of the container that the seal can be pressed into the sleeve of the container by a weak sliding fit. Therefore, the outer diameter of the collar should be less than the inner diameter of the liner on the double thickness of the material of the cap and on the tolerance within 0.5-1%. The upper part 20 of the punch is movable relative to the lower part 1B, has a free sliding fit and must have an external diameter slightly larger than the external diameter of the collar 21. The lower edge of the upper part of the punch has a cup-shaped surface 25, the size of which corresponds to or exceeds the diameter of the rubber ring 23. The shape of the cup-shaped surface 25 must be such as to create the maximum movement along line 26 when the ring is compressed. For this purpose, the cup-shaped surface 25 at the outer surface is lower than the inner surface of the upper part 20 of the punch.

The holder 8 is made with a lower guide cone 9, and the welding tool JO contains an upward cone i1, immediately following the expanded cylindrical cavity 12. The conical parts of the holder are small. In a practical embodiment, the tool a, intended for the manufacture of a round cup-shaped container of cardboard, with an inner diameter of 72.6 mm, the holder is made with a guide cone 7, and welding is shown in FIG. 6, the outermost surface 26 of the pressure of the rubber ring 23 itself is close to the cap plane 6 and directly in front of the welding tool 10. During welding, the plastic layer of the seal is fused with the plastic layer of the tongue and some parts of the plastic to be welded.

Niy tool, which height 3,8mm,

They are made with expanding upwards cong layers pressed up and down in res J, which gives a tolerance in the cylindrical cavity of about 0.2 mm. In a practical embodiment, the container is made of the same material as

20

cover, i.e. from cardboard, the surface of which, inside the container, is covered with a layer of aluminum and weldable polyethylene. Total material thickness 0.5 mm. The inner diameter of the container is 72.6 mm, 410 means the tolerance of 0.4 mm in addition to the double thickness of the material. The outer diameter of the upper part 20 is complete without a tolerance and is equal to 71.6 mm.

as a result, thickened parts 27 and 28 of plastic material are formed which contribute to good sealing of the cap and sleeves. After welding the cap with the sleeve, the top edge 4 rolls inward, as shown in FIG. 1 and 2.

FIG. 7-10 shows an embodiment of the device for installation in a 2B container of the phone.

The upper part of the sleeve 1 of the container is made with an inner bellows 29, a ger Metichically closing the container. Above the bellows 29 with a container connects the Upper part of the sleeve 1 of the container is made with an inner bellows 29, ger Metichically closing the container. Over bellows 29 with container connect

After insertion of the liner 1 of the container JQ, a protective cover 3 is inserted. Container

and the holder 8, the piston 16 is lowered down 5B; as a result, the workpiece 5 is formed on the rounded upper edge of the molding disk 11PI of the ring 14 and an upward bead 7 is formed. The punch moves downwards to a predetermined distance, which is calculated so that the pressure of the surface of the rubber ring is 23 G It is placed directly in front of the welding ring 10. In the compressed state, the rubber ring 23 provides an almost linear surface 26 on one line with the welding ring 10.

After the heat is supplied to the welding ring 10, the rubber ring 23 expands when both parts 18 and 20 of the punch are pushed together, as a result of which welding the layers of the container liner and the lid fuse together. The molten material spreads up and down and parts of the container liner and the collar edge located above the welding ring 10 are allowed to expand somewhat, as a result of which the contact pressure on these parts self-regulates. Welding lasts a few seconds and at the end of the welding part 20 poin35

can be made with bellows both in the upper and in its lower part.

The sylphs should be made from such a weldable material that is easily bent. It can be made of a suitable laminate, for example, aluminum — polyethylene, with a polyethylene layer facing the sleeve of the container. Silpho seals the container liner on the gas, so it is important that it reliably seals the inner surface of the liner of the container. The punch 16 is connected to a device 17 for vertically moving it and creating the required pressure connection or welded connection of the bellows edges with the inner surface of the container liner.

45

50

55

When the bellows billet or protective crest billet is pressed in, an upturned edge is formed in them, which is then connected by welding to the inner surface of the sleeve.

IlyaHCoSi 16 contains a formuyu surface 30, the corresponding ending

the sleep is retracted from the bottom 18. The rubber ring 23 returns to its round shape and the die moves to the ready position for the next working fickle.

As shown in FIG. 6, the outermost surface 26 of the pressure of the rubber ring 23 itself is close to the plane 6 of the lid and directly in front of the welding tool 10. During welding, the plastic layer of the cap is fused with the plastic layer of the tongue and some parts of the plastic to be welded.

As a result, thickened parts 27 and 28 of plastic material are formed, contributing to a good sealing of the cap and sleeves. After welding the cap with the sleeve, the top edge 4 rolls inward, as shown in FIG. 1 and 2.

FIG. 7-10 shows an embodiment of the device for installation in the container of the cartridge.

The upper part of the sleeve 1 of the container is made with an inner bellows 29, a ger Metichically closing the container. Over the bellows 29, a protective cover 3 is connected to the container. Container

can be made with bellows both in the upper and in its lower part.

The sylphs should be made from such a weldable material that is easily bent. It can be made of a suitable laminate, for example, aluminum, polyethylene, with a polyethylene layer facing the container sleeve. The bellows seals the gas liner of the container, so it is important that it reliably seals the inner surface of the liner of the container. The punch 16 is connected to a device 17 for vertically moving it and creating the desired pressure connection or welded joint of the bellows edges with the inner surface of the container liner.

55

When the bellows preform or protective crest preform is pressed in, the upward-facing bead is formed in them, which is then connected by welding to the inner surface of the sleeve.

IlyaHCoSi 16 contains the shape of the surface 30, corresponding to the final shape of the bellows. The surface has a cylindrical shape 31, and the bottom of the surface has a cavity 32. In order for the bellows () to have excess pressure and compensate for insufficient pressure, it must be 11 degrees 15Pi. For this purpose, And one or more half-cores 32 of the forming surface are provided (Fig. -9). To vent air in the center of the cavity, an opening 33 is provided for pumping.

The drive device of the punch is designed to move it

exactly in the specified position, with which g is warm: and a protective cover or dots

The rubber ring is placed strictly in front of the welding ring.

The device shown in FIG. 8, works as follows.

The sleeve of the container 1 from below is inserted into the holder in the upper position, which is defined by the protrusion 34. The workpiece of the bellows 35 is placed in the first support 36 and the punch 16 is moved downwards by means of the drive device 17, as a result of which the punch presses the workpiece into the open end of the sleeve. The bellows blank is formed exactly along the formative turning: -: - of the punch. The punch is adjusted so that it stops at a position in which the rubber ring 19 is strictly in front of the welding ring 10. After the lower part of the punch is stopped, it is held by the ring 37, and the upper part is moved to exactly the specified distance downward, as a result of which the rubber ring is compressed and expands in the radial direction and thus the preform-bellows billet is pressed against the inner surface of the sleeve. The sleeve is pressed against the vacuum ring rye 10. After energization, the heat-absorbing layers of the container sleeve and the bellows flange are fused together.

Since the rubber ring 19 presses the material to the welding tool, a very good welding contact is achieved and, since the bellows billet is relatively thin, a very good sealing is achieved even if in the welding zone the billet billet has folds. After welding the bellows, the punch 16 removes the second support 38 stack cover preparation.

At the same time, the sleeve of the container is moved for a given distance, down

for welding to the container of the cap, When the punch 17 is moved down, it forms the cover blank. Due to the fact that the protective cover is made of a thicker material than the bellows, the grip is pressed against the inner surface by means of the forming surface 30 with a force sufficient to ensure welding. The punch is moved down so that the lower part of the straight side surface 31 is strictly in front of the welding tool.

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five

five

or welded seam is connected with the sleeve. In this second stage, the welding is carried out without any rubber ring 19.

The small protective cover and the sleeve should not be completely tight, on the contrary, it is necessary that between the sleeve 1 and the protective 3 there are small openings so that air can flow past the protective cover in both directions depending on the pressure change that causes displacement outward or inward bellows. The protective cover can be made with one or more punched holes or air ducts.

If the forming surface 30 of the punch is made removable, then the same punch can be used to make containers with or without a bellows, with the result that the lid of the Container can be welded using a rubber ring 19 with the position of the punch 16, in which the rubber ring and the cap is directly in front of the welding ring 10, as described above. Moving the liner of the container to two predetermined positions and lowering the pus-soy to two predetermined positions is accomplished by means of a known means.

The device allows the lid to be mounted and welded almost anywhere within the container tube without the danger of either small or too large a cap flange on the container tube. At the same time, the welded joint is close to the bottom of the criss: ki, where folds and sea waves are minimal, which simplifies the device.

The container containing Clifon and Krischka is characterized in that in case of pressure changes of the packaged goods

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five

the moat or the surrounding atmosphere, the motket will move n KOffTeilHepe inwards or; out to the compensator thereby changing the pressure so that in this case the tube of the cardboard container does not undergo significant changes

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the invention

Claims (1)

1, A device for forming and installing a lid in a tubular container containing a container tube holder with welding tools installed in it in the form of a metal ring and a container, a support mounted above the holder, located on the support of the cover blanks, a punch for pressing the cover blanks into the pipe container and simultaneous bending of the edges of the blanks up, made in the form of a hollow sleeve and consisting of two axially movable one relative to another part, the bottom of which has a bead with pore surface, and a gland mounted in the form of a ring of elastic material installed between the top end: part of the punch and the supporting surface of the bottom part of the punch, characterized in the outer diameter of the poaxon and the lower part of the clamping punch contains an arcuate groove, which passes into the downwardly drilled hole of the punch, at the same time, The bore and arc-shaped trough coincide with the radius of the pressing device in its unloaded state. The device according to claim, characterized in that the upper part of the additional dimple punch is made in the form of a hollow cylinder, wherein five 0 five 0 five 0 five the outer diameter of the downwardly inclined shoulder of the lower part of the clamping punch is smaller than the outer diameter of the upper part of the punch. 3. A device according to claim 1, characterized in that when the parts of the punch are compressed, the pressing surface of the elastic ring is flush with the metal ring of the holder. 4. Device on PP. 1-3, about t - personal. the fact that the side surfaces of the holder and the pressure punch is cylindrical. 5. The device according to claim 3, that is, that the metal ring is made with a conical surface at an angle of 2-6, and the holder has a cavity located above the metal ring with a diameter corresponding to the largest diameter metal ring. 6. The device according to paragraphs. 4 and 5, characterized in that the holder has a protrusion in the cavity to limit the position of the container in the holder. 7 "The device according to claim 1, about tl - and that tems that it contains. , the bottom one is for welding the bellows, and the top one is for welding the keypads. 8. The device according to claim 7, characterized in that the forming surface has a bottom with a cavity and straight side surface. 9. The device according to claim 3, about tl and - often with the fact that the forming surface in the cavity of the bottom has at least one pumping hole. 1 x хЗ / Yu ylV JJUJJJJ.fHi jmjtJJJTT 2 SSf Fie.2 21 25 21 21 FIG. 5 fiyo Wsv04.:v F  t