JPH0780267B2 - Container manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention cuts out a thermoplastic resin plate such as a styrofoam plate or the like into a predetermined development plate, bends these, and adheres predetermined positions. The present invention relates to a container manufacturing apparatus that forms a container used for packaging food.

(Prior Art) A means for forming a container body using a thermoplastic resin flat plate such as a Styrofoam plate is generally a side plate b, b'and an end plate at four peripheral portions of a bottom face a as shown in a development plate of FIG. c, c'are connected in series via a broken line d, and side plates b, b'and end plates c, c '
And the side plates b and b'and the end plates c and c'are respectively heated and melted at their adjacent edges e to be bonded to form a box-shaped container as shown in FIG. .

As an automatic forming device of the container, as shown in JP-A-51-127174, a flat plate of a resin is punched into a development plate and at the same time, an edge portion to be a fusion is heated and melted, and this is placed in a receiving mold. What is pushed to form a container body,
As shown in Japanese Patent No. 43131, the resin development plate, while pushing the hole having an inclined surface to stand up the side plate and the end plate, melt the welding edge portion with the hot plate of the four edge portions of the hole, It is known that a side plate and an end plate are stood up to a predetermined position and a melting portion is bonded to form a container.

In addition, as a continuous manufacturing apparatus for box-shaped containers, Japanese Patent Application Laid-Open No. 48-93480
As shown in Japanese Patent Laid-Open Publication No. 2003-242242, there is known an apparatus that carries out a predetermined box making process at each stop position of a transporting body that rotates intermittently.

(Problems to be Solved by the Invention) Since the above-mentioned container body is edge-welded at the four edges, it may be easily damaged and has a somewhat problematic strength. Therefore, as shown in FIG. 2, side plates B and B'are provided on the four peripheral portions of the bottom plate A.
And end plates C and C ′ are connected in series, and a development plate having folded back adhesive pieces D and D ′ is formed on both side ends of each side plate B and B ′, and end plates B and B ′ and end plates C and C are formed. ′ Is raised and the adhesive pieces D and D ′ are folded back and adhered to the outer surfaces of the end plates C and C ′, and the adhesive portion becomes surface adhesive, so that it is stronger than the box-shaped container illustrated in FIG. It will be. However, a container having the above-mentioned adhesive piece cannot be continuously manufactured by a manufacturing apparatus that simply pushes it into a hole or a receiving portion to form a container, and if a transporting body that rotates intermittently is used, continuous manufacturing is possible. Even if the above-mentioned conventionally known continuous production apparatus is adopted as it is, the container having the adhesive piece cannot be produced.

Therefore, the present invention provides a manufacturing apparatus capable of continuously and automatically forming a container having an adhesive piece.

(Means for Solving the Problems) A container manufacturing apparatus according to the present invention comprises a deployment plate in which side plates and end plates are continuously provided around four sides of a bottom plate and bending adhesive pieces are provided at both ends of each side plate. , A manufacturing method of a container body formed by adhering a bent adhesive piece of a standing side plate to an outer surface of an end plate in a standing state, and a transport mechanism for performing intermittent rotation operation corresponding to each manufacturing process, and a transport mechanism It is composed of a spreading plate mounting mechanism, an adhering mechanism, and a discharging mechanism arranged at the stop positions (first process position, second process position, third process position).

The transport mechanism is provided with a holder that receives the bottom plate of the expansion plate and the side plate in the upright state, and a recessed portion that is recessed from the bottom of the holder toward the center of the transport body, and protrudes from the outer peripheral portion of the transport body that rotates intermittently. , An end plate receiving rod for receiving the end plate at a predetermined angle and standing up, having a hooking claw projecting inwardly of a side plate receiving portion of the holding body, and supporting the base end portion at the same time. And a hook body provided with a spring for urging the latching claw in the protruding direction so that the latching can be released.
At the process position, a deployment plate mounting mechanism having means for press-fitting the deployment plate into the holding body and mounting the side plate portion of the deployment plate to the holding body in an upright state is arranged facing the holding body, and the second step position In the third, a bonding mechanism provided with means for generating the inside of the adhesive piece of the spread plate in the standing state held by the holding body in a bondable state, and means for bending the adhesive piece to the outer surface side of the end face plate is arranged. At the process position, means for activating the claw body of the transfer mechanism to release the hooked state, and means for moving the transfer mechanism from the second process position to the third process position to the back of the container bottom held by the holder. Operation of the push rod includes an push rod which is located in the end plate receiving rod concave portion and which moves between the end portion of the holding body and the inner portion of the end plate receiving rod in the rotation outer peripheral direction of the transport main body. In addition, a discharge mechanism having means for detaching the container body produced in Of.

(Operation) At the position of the 1st process, the expansion plate is pushed toward the holder, the side plate is raised, and the edge of the side plate is hooked on the pawl to attach the expansion plate to the holder. At the same time, the end plate is set up by the end plate receiving rod. Next, the carrier rotates to stop the holder at the second process position, and the adhesive is sprayed or applied to the outer surface adhesive portion of the end plate or the adhesive surface portion of the adhesive piece, or the thermoplastic resin plate. In such a case, a hot plate is brought into contact with the above-mentioned portion to bring it into a bondable state, and as soon as the bondable state is reached, the adhesive piece is bent and pressed against the outer surface of the end face plate to bond them to form a container body. When the conveying body is rotated to the next step III position, the pushing rod is located in the end plate receiving rod recess behind the bottom surface of the container.Therefore, the pawl is operated to release the hooking of the pawl, and at the same time the pushing rod is pushed. Is operated, the container body is discharged from the holding body, and thereafter, the container body is again returned to the process I city.

Therefore, a robust container in which the bonding portion is surface-bonded is automatically and continuously manufactured.

(Example) Next, the Example of the apparatus of this invention is described based on drawing.

FIG. 1 is a simplified front view of the whole apparatus of the present invention, which is a transport main body 1.
The four holding bodies 2 are provided on the outer peripheral part of the carrier, the transport main body 1 is rotated by 90 ° intermittently, and the operations of steps I to III are performed in each city when stopped, and the relationship with the workpiece is explained. Then, as shown in FIG. 2 (a), the expansion plate is provided with B, B'and end plates C, C'in a row on the four peripheries of the bottom surface A, and each side plate B,
B'has folded back adhesive pieces D and D'on both ends, and by attaching to the holder in the step I, side plates B and B ', end plates C and C'and end plates C and C'as shown in FIG. Adhesive pieces D and D'stand up together with the side plates B and B, and in the second step, the adhesive pieces D and D '
D'is bonded to the end plates C and C'to form a container body as shown in FIG. 3C, and the container body produced in the step III is discharged from the carrier body 1. .

Next, details of the mechanism for performing the above steps will be described.

The transport mechanism is one in which a holder 2 is provided on the outer periphery of a carrier 1 that rotates intermittently by 90 °. The holder 2 is a C-shaped receiving end and has a pawl 3 that rotates on the side plate. Attached
The claw body 3 has a latching claw 4 having a tip portion protruding inwardly of the side plate portion of the holding body 2, a base end portion is axially supported, and an operating arm 6 urged in a latching direction by a spring 5 is continuously provided. I will do it. Further, an end plate receiving rod 8 having a recessed portion 7 which is recessed from the lower plate portion of the holder 2 toward the center of the carrier is provided on the side of the opening of the holder 2.

As shown in FIG. 5 and FIG. 6, the mounting mechanism of the expansion plate is such that the standing plate 11, such as a side plate, is provided in front of the I-th process position of the holder 2.
Press type pusher 12 is installed side by side, and a stacking plate of the expansion plate is located above it.
13 is provided, and an adsorbent 14 is provided at the tip.
Is provided with a deployment plate feed arm 15 that moves so as to move from the front position of the stacking base 13 to an intermediate position between the hole body 11 and the push-in body 12. The step I by this deployment plate mounting mechanism is the deployment plate. And a large number of vertically stacked and placed, and the stacking base 13 lightly supported by the leaf spring 16 is advanced to the adsorbing body 14 side that is waiting, and when one adsorbing plate is adsorbed and held by the adsorbing body 14,
The feed arm 15 operates to convey the expansion plate to an intermediate position between the hole body 11 and the push-in body 12, stop adsorption and return the adsorption body 14 to the original position, and at the same time, the push-in body 12 moves the expansion plate into the hole body. When it is pushed through the holder 11 into the holding body 2, the side plates B and B of the developing plate stand up because the holes are narrower than the width of the developing plate.
The upper edges of the side plates B and B ′ are hooked on the hooking claws 4 of the claw body 3, and the expansion plate is mounted on the holding body 2. At this time, the end plates C and C'are also erected in a predetermined manner by the end plate receiving rod 8.

The bonding mechanism is shown in FIG. 7, FIG. 8 and FIG. 9, and has a shape that matches the inner shape of the container body to be manufactured at a position facing the second process position of the holding body 2. 21 is provided so as to be movable up and down, and a melting portion and a folding portion are provided at left and right positions in the traveling direction of the holding body 2, and the melting portion is provided at the tip of the rotating arm 22 of the end face plates C and C '. Each has a heating body 23 that matches the shape of the portion to be bonded, and is operated so as to come into contact with the bonding portion when the rotating arm 22 is rotated, and the folded portion is the container body to be produced. A pressing plate 24 corresponding to the inclination angle of the end plates C and C'is formed on the front portion, and is composed of a rotating arm 25 that rotates so that the inclined surface corresponds to the line of motion.

Thus, in the second step, the die 21 moves up and the rotating arm 22
Rotates toward the holding body 2 and melts the corresponding portions of the end plates C, C'bonded by the heating body 23, and also melts the bonding surfaces of the bonding pieces D, D ', and when the heating body 23 retreats, Immediately after that, the turning arm 25 of the folded portion is operated, and the adhesive plate D is pressed by the pressing plate 24.
D'is pressed against the outer side surfaces of the bent end face plates C, C'to weld them together to form a container body.

The discharging mechanism is shown in FIG. 10 and FIG.
At the I step position, the cam body 31 for operating the operating arm 6 of the claw body 3 and the container 2 naturally held by the holding body 2 when the holding body 2 of the transport main body 1 moves from the II step step position to the III step position. The push rod 32 is provided at a position located in the recess 7 of the end plate receiving rod 8 behind the bottom surface, and the push rod 32 is conveyed from between the end portion of the holding body 2 and the internal portion of the end plate receiving rod 8. The main body 1 is provided so as to move in the outer circumferential direction. Thus II
In the step I, the end plate C, C'and the adhesive pieces D, D'become bonded to form a container body, and the cam body 31 releases the latching of the upper edge of the side plate B, B'by the latching claw 4. In addition, the container body is discharged from the holder 2 by the pushing rod 32.

Therefore, when the steps I, II, and III are operated corresponding to the intermittent rotation of the carrier 1, the container bodies are successively and automatically produced from the spreading plate. Further, the operation of each mechanism may be operated by a series of cam mechanisms so that the timing may coincide with the intermittent rotation of the transport main body, or may be performed by appropriate cylinder drive, motor drive, etc. by appropriate sequence control.

In the above-mentioned embodiment, the heat-weldable resin plate (particularly styrofoam plate) is shown. However, the melting part of the adhesion mechanism may be the adhesive application part, the adhesive injection part, or the adhesion part may be the expansion plate in advance. By using a means for applying an adhesive at the point of time, a container made of paper or other material can be manufactured. Further, the expansion plate cutting mechanism may be attached to the expansion plate mounting mechanism without forming the expansion plate in advance.

(Effects of the Invention) As described above, in the container manufacturing apparatus of the present invention, the transport main body having the holder is intermittently rotated, and the developing plate of the container is held by the holder, and the developing plate is processed into the container. A mechanism for discharging the produced container body from the holding body is provided at the stop position of the carrier body, and the side plate and the end plate are connected to the four peripheral portions of the bottom plate to raise the side plate and the end plate. At the same time, it is possible to automatically and continuously manufacture a robust container formed by attaching an adhesive piece continuous with the side plate to the end plate.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a simple front view showing the position of each mechanism with respect to the entire apparatus, and FIG. 2 (a).
(B) (c) is a development view of the container produced by the device of the present invention,
A midway drawing and a completed drawing. FIG. 3 is a perspective view of a holding pair.
Figure is the same front view. Figure 5 is the front view of the deployment plate mounting mechanism.
Figure (a) is a plan view of the same part (b) is a sectional view Figure 7 is an upper perspective view of the bonding mechanism Figure 8 is a side view of the same Figure 9 is the same plan view Figure 10 is a front view of the discharge mechanism 11 The figure is the same plan
Fig. 12 shows the development plate and the container of the conventional container. 1 is a transport main body, 2 is a holding body, 3 is a claw body, 4 is a latch claw, 5
Is a spring, 6 is an operating arm, 7 is a concave portion, 8 is an end face plate rod, 11 is a hole body, 12 is a push-in body, 13 is a stacking stand, 14 is a suction body, 15 is a feeding arm, 16 is a leaf spring, 21 Is a receiving mold, 22 is a rotating arm, 23 is a heating body, 24 is a pressing plate, 25 is a rotating arm, 31 is a cam body, 32 is a pushing rod, A is a bottom plate, B and B'are side plates, C, C'is an end plate,
D and D'are adhesive pieces

Claims (1)

[Claims] 1. A bent adhesive piece of a standing side plate in a standing state from a deployment plate in which side plates and end plates are continuously provided around four sides of a bottom plate and bent adhesive pieces are provided at both ends of each side plate. In a container manufacturing apparatus for a container body formed by adhering to the outer surface of the end plate,
A holding body that receives the bottom plate of the expansion plate and the side plate in an upright state, and a concave portion that is recessed from the bottom surface of the holding body to the center of the conveyance body are formed on the outer peripheral portion of the conveyance body that intermittently rotates at each process position. And the end plate receiving rod that receives the end plate at a predetermined angle and stands up, has a hooking claw protruding inwardly of the side plate receiving portion of the holding body, and has a base end portion. At least a necessary number of steps are formed in the transport mechanism, which is provided with a claw body that is pivotally supported and that has a spring for urging the latch claw in the projecting direction and that is unlocked so that the latch can be released. At this position, a deployment plate mounting mechanism having means for press-fitting the deployment plate into the holding body and adhering the side plate portion of the deployment plate to the holding body in an upright state is disposed facing the holding body, and at the second step position. , The inside of the adhesive piece of the spreading plate that is held by the holder and is in the standing state is generated in a bondable state. A bonding mechanism having a step and a means for bending the bonding piece to the outer surface of the end plate is arranged, and at the third step position, means for operating the claw body of the transportation mechanism to release the hooked state, and the transportation mechanism. Is located in the end plate receiving rod recess behind the bottom surface of the container held by the holding body by the movement from the second process position to the third process position, and the end of the holding body and the inner portion of the end plate receiving rod. And a discharge mechanism having means for releasing the container body produced by the operation of the pushing rod from the holding body, the pushing mechanism having an pushing rod that moves in the rotation outer peripheral direction of the conveyance body from between A container manufacturing apparatus characterized by the above.