JPS60120035A - Manufacturing device of set-up container - Google Patents

Abstract

PURPOSE:To manufacture boxes such as food containers of various dimensions, by a method wherein circumferential measurements of heating blade and a mold are made adjustable, in a device making a box by cutting off a plastic board in a state of a developed figure by making use of the heating blade in a shape of projected parallels and fusing four corners within the mold. CONSTITUTION:A plastic container 22 is manufactured by a method wherein simultaneously with cutting off of four corners of a plastic board with blades 33', 34 by mounting the plastic plate on a mold 14 and making a heating blade 1 in a state of projected parallels descend from the upper part, the plastic board in a state of a developed figure whose four corners are cut off and removed is pushed into the mold 14 and rising parts of the four corners are fushed by making the heating blade 1 ascend and a pressure plate 13 descend after formation of a bent groove by blades 33 of the four corners. As for confronting blades 6, 8 and 7, 9 of the heating blade 1, they are movable respectively in the direction of X, Y, and adjustable in relation to their circumferential measurements, and as for the mold, 14 it is similar to a case of the blade. Heating and fusing blades 11 at the four corners are made deeper than the blades 6-9 and kept fusable.

Description

[Detailed description of the invention] The present invention relates to an assembly container manufacturing apparatus.

Conventionally, when manufacturing synthetic resin containers such as those found in food containers, a heating blade is used to create a hakoya open plate from the original plate. Push it indoors, stand up the side panels of the Hakoya Open Board, fuse the ends of the side panels together, and assemble it into a box shape.

A so-called assembly molding method for obtaining containers is known.

In this assembly molding, it is necessary to change the size of the heating blade and mold according to the size of the container to be manufactured.)
Therefore, a device has been proposed in which the dimensions of the heating blade and blade can be adjusted arbitrarily so that the heating blade and blade do not have to be replaced every time. However, this conventional device has the drawback that it is difficult to perform accurate dimensional adjustment, and it cannot be used satisfactorily for practical use.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide an assembly container manufacturing apparatus that can easily and accurately adjust the circumferential dimensions of the heating blade and the container.

That is, the present invention has a bending groove forming blade and a fusing blade, a heating blade which is arranged in a cross-shaped structure and can be raised and lowered freely, and a heating blade which is provided below the heating blade and can be cut by the action of the heating blade. In order to raise the side plate of the Hakoya opening plate above the bottom plate, the base is provided with an inner cavity into which the Hakoya opening plate is pushed, and a one-box expansion plate is provided in the inner cavity of the base so that it can be raised and lowered. In an apparatus for manufacturing an assembled container, which includes a pressing plate for pushing, the heating blade structure forming the heating blade is movably provided, and the mold forming frame forming the chamber is movably provided, and the heating blade and the mold are movably provided. The gist of the present invention is an assembly container manufacturing apparatus characterized in that the four circumferential dimensions are adjustable.

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a heating blade provided above within a base frame 2, and the heating blade 1 is fixed to a support frame 4 that is moved up and down by an air cylinder 3. Reference numeral 5 denotes a guide rod that guides the support frame 4 when it moves up and down.

As shown in Figure 2, the heating blades consist of four heating blades with built-in heaters 6. ．． 7, 8, and 9 should be arranged in a grid pattern.
The fusing blade 11 has a bending groove forming blade 10 having a surrounding shape and a fusing blade 1 having an L-shape.
As shown in FIG. 10, by attaching the cutting blade 11' to the protrusion 33' of the blade part 33, the bending groove forming blade 10 also protrudes downward. be able to. The blade portion 34 may be formed in advance so that the bending groove forming blade 10 also protrudes downward, or the cutting blade 11' may be attached in the same manner as the protruding portion 33'. With this structure, a box development plate as shown in FIG. 8 can be obtained by fusing the four corners of the original plate.

An air cylinder (not shown) (usually arranged in parallel with the air cylinder 3) has heating blades 1
An arm 12 extending downward through a substantially central space is connected to the arm 12, and a pressing plate I3 is fixed to the tip of the arm depth 2, and the pressing plate 13 is configured to be movable up and down by an air cylinder. .

A hood 14 is provided below the heating blade 1 for raising all the side plates of the two-box development plate to form a container, and the forming mold 14 is placed and fixed on a mold mounting frame 15.

As shown in FIG.
7.18.19, and the side plate of the box expansion plate pushed into the inner cavity 20 of the mold 14 is the 凛 constituting frame 16,1? ,
It is designed to rise above K when it comes into contact with Ig and 19.

The mold mounting frame 15 has an opening 21 corresponding to the inner cavity 20 of the mold, and a container 22 formed in the mold 14 has an opening 2.
1 and fall below the exhibition frame.

However, the mold mounting frame 15 was not provided.

The mold 14 may be attached directly to the base frame 2.

A large number of original plates 23 are stacked in an original plate stacking frame 24, and are sent out to the upper surface of the mold 14 by an ejecting plate 25 in order from the lowest layer.

The ejecting plate 25 is fixed to the tip of an arm 26 connected to an air cylinder (not shown), and moves forward and backward in the horizontal direction. When supplying the original plate, it comes into contact with the end of the original plate 23 and moves in the direction of arrow a (Fig. 1). ). However, the original plate supply mechanism is not limited to this, and other known supply means are possible.

On the other hand, a belt conveyor 27 is provided below the mold mounting frame 15 to convey the container 22 that has fallen below the mold 14 and to drop and store it in a receiving box 28. Further, during transportation, the expanded upper end of the container 22 is cut by the cutting blade 29. This means that the container formed within the mold 14 will have a misaligned top edge (for example, the height of each side plate will be uneven).
In some cases, the cut is folded to make the upper edge flush (that is, to make the height of each side plate uniform).

The cutting blade 29 is stretched like an endless belt between two μm sheaths and rotates endlessly (usually.

(a chain saw is used), a position pressure is provided in contact with the upper end of the container 22 conveyed by the belt conveyor 27. 81 is a motor that rotates the roller 30.

In order to prevent the occurrence of a situation in which the container conveyed by the belt conveyor 27 comes into contact with the cutting blade as described above, the conveyance of the container is stopped due to the contact, the container 22 on the belt conveyor 27 is placed on the belt conveyor 21. A mechanism is provided to attract and hold it. For example, one example of this mechanism is to provide a suction hole (not shown) in the belt conveyor 27,
A suction chamber 32 is provided below the belt conveyor 27. 'e, the inside of the drawing chamber 32 is pumped with a vacuum pump (not shown).
When the container 22 on the belt conveyor 27 is suctioned through the suction hole, the container 22 on the belt conveyor 27 is sucked through the suction hole and
7 is adsorbed and held. By configuring it like this,
Since the container 22 can be reliably moved in the transport direction while in contact with the cutting blade 29, cutting by the cutting blade is possible.

The material of the container manufactured by the apparatus of the present invention is a thermoplastic resin, and although non-foamed resin is also applicable, 9-foamed resin is particularly preferably used. Various resins can be used as the foamed resin, particularly polystyrene homopolymer, styrene-maleic anhydride copolymer, and styrene-acrylic acid copolymer.

Polystyrene resins such as styrene-acrylic acid ester copolymer and impact-resistant polystyrene prepared by blending butadiene with polystyrene are preferred.

The heating blade 1 and the mold 14 are configured so that the circumferential dimensions thereof can be arbitrarily adjusted according to the size of the container to be manufactured. below.

Their circumferential dimensions v! The 4N mechanism will be explained.

As shown in FIGS. 2 and 3, the heating blade structure 6 consists of two divided blade parts 3g and 34.

These blade portions 113, 84 are connected to each other by a bridge member 35. Similarly, the other heating blade structures 7, 8.9 are
It is composed of two blade parts and a bridge member that connects the two blade parts.

The blade portion 33 and the bridge member 35 in the heating blade structure 6. The blade portion 34 and the bridge member 35 are connected and fixed by a fixing fitting 39, respectively.

The same applies to the other heating blade structures 7, 8.9. A concave groove 40 is provided in the lower part of each piece member 35, 86, 137. The blade part 33 of the blade structure 6 is in the groove of the bridge member 37, the blade part 38 of the heating blade structure 7 is in the groove of the bridge member 38, and the a7JII heating blade structure 8 is in the groove of the bridge member 38.
The blade portion 33 of.

Each is slidably inserted.

Of the two blade parts 33 and 34 in the heating blade structure, the shorter blade part 34 and the blade part 34 are perpendicular to each other,
Blade s of another heating blade structure fitted into the concave groove 40 of the bridge member
33 and the L-shaped fusing blade 11 is configured.

Two insertion holes 41.42 are provided in the upper portions of the bridge members 35.36, 37.38, and these insertion holes 41.42 are positioned such that their insertion directions are perpendicular to each other. each in the first insertion hole 41.

Along the heating blade structures 6, 8, movable rods 43, 44 are inserted, and into the second insertion holes 42, respectively, along the heating blade structures 7.9, ie the movable rods 43, 44 are inserted. A movable rod 45, 46 is inserted in a direction perpendicular to. Guide supports 47 are provided at both ends of each movable rod 43, 44, 45, 46, and these guide supports 47 are connected to the guide rods 4 provided around the four circumferences.
8 to be guided and supported.

Further, the movable rods 43 and 44 have threaded rods 49, and the movable rods 45 and 45.
A threaded rod 50 is screwed into each of the screws 46, and each of the screws ($49.50) has thread grooves that are oppositely threaded with respect to the center thereof. 5 blind is threaded rod holder, 52.53 is each threaded rod 49.50tl-
7.ndru for turning.

54 is the main frame.

In the above configuration, when the handle 52 is turned K in the direction indicated by the arrow (FIG. 4), the movable rods 43 and 44 move toward each other (in the direction of arrows C and D in FIG. 4), and vice versa. When turned in direction B, for example, they move away from each other. Similarly, when the nondle 53 is turned in either the forward or reverse direction, the movable rods 45 and 46 move toward or away from each other.

Suppose now that the movable rods 43 and 44 move in directions C and D. At this time, the movable rod 43 is moved in the direction of the bridge member 35.36tC while being in contact with the first insertion hole 41 of the bridge member 35.86. When scolded.

The second insertion hole 42 is fitted into the movable rod 45, 46 and moves in the axial direction thereof.

In this case, the bridge member 85 and the heating blade structure 6 are fixed,
Since the blade part 88 of the heating blade structure 9 is fitted into the concave groove 40 of the bridge member 35, the bridge member 35 slides on the blade part 38 of the heating blade structure 9 while sliding on the heating blade structure 9. 6 in the C direction. Further, the bridge member 36 and the heating blade structure 7 are fixed, and the blade portion 3 of the heating blade structure 6 is inserted into the groove 40 of the bridge member 36.
3 are fitted, the bridge member 36 abuts the heating blade structure 6 in its groove 40 and moves the heating blade structure 6 in the C direction in a good state. At the same time, the heating blade structure 7 fixed to the bridge member 36 is also attached to the bridge member 36.
It moves together with the heating blade structure 6. In this way, the heating blade structures 6 and 7 move integrally in the KC direction.

When the movable rod 44 moves in the D direction, the heating blade structures 8 and 9 move integrally in the same direction based on the same principle as above. In this way, the distance X (second
(Figure) can be adjusted in the direction of decreasing the size. The distance X can be increased by turning the handle 52 in the opposite direction to move the movable rods 43 and 44 apart.

To adjust the spacing y (FIG. 2) between the heating blade arrangements 7 and 9, the handle 53 can be turned. As the handle 53 is rotated in the forward or reverse direction, the movable rods 45 and 46 move in the direction of approaching or separating (directions of arrows E and F in FIG. 4). .38 in the second insertion hole 42 and move the piece member tE or downward.

The bridge member 35 moves the heating blade structure 9 integrally with the heating blade structure 6 while being in contact with the heating blade structure 9 in its groove 40 . The piece member 38 connected to the heating blade structure 9 slides on the blade portion 33 of the heating blade structure 8 . In this way, the heating blade arrangements 6 and 9 move integrally in the KE or F direction. Similarly, the heating blade structures 7 and 8 move together in the E or F direction. These moving mechanisms.

This is exactly the same as the case using the handle 52 described above. In this way, the distance y between the heating blade structures 7 and 9 can be adjusted.

By adjusting the distance X and/or the distance y, it is possible to change the four circumferential dimensions of the heating blade as appropriate.

As in this embodiment, a bridge member is provided in the heating blade structure.

By inserting a movable rod into the bridge member and moving the heating blade assembly through the movable rod, there is no need to make the heating blade assembly longer than necessary.

Furthermore, by supporting the movable rod on the guide rod, there is an advantage that the heating blade assembly can be smoothly moved.

Next, a mechanism for adjusting the four circumferential dimensions of the mold 14 will be explained.

As shown in Fig. 5, W14 has four mold construction frames 16.1.
7.18.19 and support members 55, 56° and 57.58. The support members 55, 56, 57, and 58 have grooves 59 as shown in FIG.

It has insertion holes 60 and 61 that are perpendicular to each other. The vertical portion of the five-shaped mold frame 16 is slidably fitted into the groove 59 of the support member 55 .

Another mold forming frame 17 arranged perpendicularly to the mold forming frame 16 is connected and fixed to one side of the outer surface via a fixing metal fitting 62t. In the same way, mold construction frames are attached to other supporting members to form a four-circumferential frame-shaped hood 14.

A movable rod 63 is fitted into the insertion hole 60 of the support member 55.58, and the support member 56. ．． The movable rod 6 is inserted into the insertion hole 60 of 57.
4 are fitted, and the insertion holes 61 of the support members 55 and 56 are fitted.
A movable rod 65 is provided in the support member 57, and a movable rod 66 is provided in the insertion hole 61 of the support member 57,58.

It is fitted perpendicularly to the movable rods 63 and 64. A guide receiver 68 is provided at both ends of each movable rod 6g, 64, 65, 66 and is fitted and supported by a guide rod 67, so that each movable rod is guided and moved along the guide rod 67. . 69.70 are movable 11i65, 66 respectively
, screwed into the movable rods 63 and 64. Threaded rods 71 and 72 having a reverse screw structure are handles for turning the threaded rods 69 and 70.

Handle 71t - When turned in the forward or reverse direction, the movable rod 65
and 66 move toward or away from each other, and at this time, the movable rod 65.66 moves the support member 55.58 in the direction of arrow G or H ( 5), and at that time, the support member 58 is brought into contact with the mold forming frame 19 in its groove 59, and the mold forming frame is moved! 9 in the G or H direction. at the same time,
The support member 5B moves the mold structure frame 16 fixed to the support member 58 via the fixing fittings 62 in the G or H direction. At this time, the vertical part of the mold structure frame 16 is connected to the supporting member 5.
5 in the concave groove 59. In this manner, the mold forming frame 16 and the blind 9 move integrally in the G or H direction.

Similarly, the support member 56 includes a mold component frame 17 that can be caught and abutted in the recess n59, and a mold component frame 1 fixed to the support member 56.
8 in the same G or H direction.

On the other hand, if the handle 72 is turned in the forward or reverse direction.

The movable rods 63 and 64 move toward or away from each other.

According to the same principle as described above, the support member 55
6 and 7 are integrally moved in the direction of the arrow I or J (FIG. 5), and the support member 57 is integrally moved in the direction of arrow I or J (FIG. 5), and the support member 57 is integrally moved in the direction of the arrow I or J (FIG. 5).

Therefore, the interval between the mold construction frames 17 and 19 and the mold construction frame 16
The interval between and 18 can be adjusted as desired.

As in this embodiment, if a support member is provided and the vertical part of the mold frame is slidably fitted into the groove of the support member, the mold frame is guided by the groove and moves. However, the movement is extremely smooth. In addition, as in this embodiment, if the movable rod is inserted into the support member and the mold frame is moved through the movable rod, the movable rod is supported by the guide rod and the mold frame can move smoothly. There is an advantage in that it can be done.

Next, the operation of the device of the present invention will be explained.

First, the circumferential dimensions of the heating blade 1 and the jar 14 are adjusted in advance according to the size of the container to be manufactured by the operations described above.

Next, as shown in FIG. 1, one original plate 28 is supplied onto the roof 14 by the ejecting plate 25. Thereafter, the heating blade 1 and the suppressing plate 13 are lowered, and the four corners of the original plate 23 are cut by the fusing blade 1t of the heating blade, thereby obtaining a hakoya open plate 73 as shown in FIG.

At the same time, the side plate 74 and the bottom plate 75 are formed by the bending groove forming blade 10.
A bent groove 76 is formed at the boundary.

Thereafter, the heating blade 1 rises, and the pressing plate I8 further descends to push the hakoya opening plate 73 into the inner cavity 20 of the mold. This is shown in Figure 7.

The side plates 74 rise up, and the fusing portions 77 at the ends of the plates abut and fuse together in an uncured state.

Thus, a container 22 as shown in FIG. 9 is obtained. In the figure, 78 indicates a fused portion.

The obtained container 22 is further pushed down by the pressing plate 18, passes through the opening 21 of the mold placement part, and falls onto the belt conveyor 27 below. Belt compare 27 and container 2
While transporting the receivers 2, the upper ends thereof are cut by the cutting blade 29 and the height dimensions are made equal to -KL, after which the receivers fall into the box 2B and are accumulated.

According to the present invention, it is possible to eliminate the trouble of replacing heating blades and molds one by one depending on the size of the container to be manufactured. Moreover, the present invention provides a movable heating blade assembly constituting the heating blade, and a movable mold frame constituting the housing.

Since the four circumferential dimensions of the heating blade and the mold are configured to be adjustable, the four circumferential dimensions can be freely changed by the movement K of each heating blade component and each mold component frame, making it possible to easily and accurately adjust one dimension. There are some effects that can be done.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a partially cutaway front view of the device of the present invention, and FIG. 2 is a schematic diagram of the back side of the heating blade.
The figure is a longitudinal sectional view of the main part of the heating blade, and Figure 4 is a perspective view of the heating blade.
Fig. 5 is a perspective view of the mold, Fig. 6 is a cross-sectional view taken along the line M-Vll in Fig. 5, and Fig. 7 is a partially cutaway view showing the state in which the hakoya open plate is pushed indoors and the side plate is raised. A front view of the section and a plan view of the 8th design hakoya open board. FIG. 9 is a perspective view of a container manufactured by the apparatus of the present invention, and FIG. 10 is a longitudinal cross-sectional view of a main part showing another example of the structure of the fusing blade in the heating blade. 1-----1 heating blade 6.7.8.9・--1----
Heating blade structure 10-----Bending groove forming blade 11-
・-Fusing blade 13----1 pressing plate 14・-11----
Mold 16.17.18゜19---Partial frame 20-
-----One inner space 7 g---One box expansion plate 7
4・---1---Side plate 75・－1---Bottom plate Patent applicant Nippon Styrene Paper Co., Ltd. Figure 6 Figure 7

Claims (1)

[Claims] It has a bending groove forming blade and a fusing blade, and is assembled in a parallel grid shape.
A heating blade is provided that can be raised and lowered freely, and a heating blade is provided below the heating blade, and the hakoya opening plate is pushed in in order to raise the side plate of the hakoya opening plate obtained by the action of the heating blade above the bottom plate. In an assembly container manufacturing apparatus comprising a mold having an inner cavity and a suppressing plate that is movable up and down and for pushing a one-box expansion plate into the inner cavity of the mold, a heating blade structure constituting the heating blade. 1. An apparatus for manufacturing an assembled container, characterized in that a container frame constituting the mold is movably provided, and the heating blade and the circumferential dimensions of the mold are adjustable.