JPH01240432A - Shaping device for vessel - Google Patents

Abstract

PURPOSE:To simplify the constitution of each circulating transfer means and produce a shaped vessel in low cost and also facilitate a maintenance work, by holding all the periphery of the vessel by a first and second clamp mechanism and a first and second supporting members and by pressing and shaping it. CONSTITUTION:A vessel 5B separated, independently by a cutter 10 is held by a first clamp mechanism 23 of a first rotor 21 and transferred according to the revolution of the first rotor 21. The both sides in the radius direction of the vessel 5B are held by both the first and second bearing members 25, 26 and simultaneously, the second mechanism 24 of the second rotor 22 holds the front and rear in the transferring direction of the vessel 5B. The supporting force by the second clamp mechanism 24 is set lower than that by the first clamp mechanism 23. When the rotors 21, 22 rotate further in the condition that six surface around the vessel 5B are simultaneously pressed, the vessel 5B is forced to separate from the second clamp mechanism 24 and delivered to the next ear folding device 100 with hold by the first clamp mechanism 23.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a container forming apparatus for press-molding a container into a predetermined shape.

``Prior Art'' Conventionally, in manufacturing equipment that manufactures rectangular parallelepiped paper containers, for example, a belt-like sheet is formed into a cylindrical shape, a liquid is filled inside the sheet, and the cylindrical member filled with the liquid is moved at required intervals. It is sealed horizontally to seal the liquid. Then, by cutting the cylindrical member at the lateral seal portion, the liquid-sealed containers are separated into individual containers, and then the containers are pressed from a predetermined direction to form a rectangular parallelepiped (Japanese Patent Laid-Open No. 61 -47
Publication No. 312).

Furthermore, conventionally, as a container forming device for forming a container into a rectangular parallelepiped, a device has been proposed that simultaneously clamps and presses the container from six sides: front, back, left, right, and top and bottom (West German patent? J1
221954 specification).

``Problems to be Solved by the Invention'' However, in the latter container forming apparatus, a mechanism for holding six sides of the container is built into one rotating body, which makes the mechanism complicated and expensive. Maintenance and inspection were complicated.

"Means for Solving the Problem" In view of such circumstances, the present invention includes a first clamp mechanism that clamps the side surface of the container from both sides in the transport direction of the container,
The first cycle T, in which the clamp mechanism is circulated and conveyed on a predetermined movement trajectory! Provided in the A conveyance means and the first circulation conveyance means,
a first support member that supports the inner surface of the container from inside the circulation locus; a second clamp mechanism that clamps the front and rear surfaces of the container from the front and back of the container transport direction; and a second clamp mechanism that supports the container during the first circulation transport. a second circulation conveyance means that circulates and conveys the container on a predetermined movement trajectory in synchronization with the operation of the means; and a second support member that is provided on the second circulation conveyance means and supports the inner surface of the container from inside the circulation trajectory. The first support member and the second support member are opposed to each other at a predetermined position with a predetermined distance apart by synchronized operation of the first circulation conveyance means and the second circulation conveyance means; The first clamp mechanism, the second clamp mechanism, the first support member, and the second support member simultaneously clamp the circumferential surface of the container to press-form the container.

"Operation" According to the above configuration, the first clamp mechanism and the first support member may be provided for the first circulation conveyance means, and the second clamp mechanism and the second support member may be provided for the 29jΔ ring conveyance means. Therefore, the configuration of each circulation conveyance means is simplified, and therefore, it can be manufactured at a lower cost than the conventional one in which all of them are assembled into a single rotating body, and maintenance and inspection are also easier.

``Example'' The present invention will be described below with reference to the illustrated example. In FIG. 1, a belt-shaped sheet is coated with a thermoplastic coating, is printed with a desired pattern, and has predetermined fold lines formed in accordance with the printing. are formed into a tube body 2 by overlapping both side edges thereof, passing through the vertical sealing device 1, and thermally welding them.

The tube body 2 is conveyed vertically from above to below, and the filling liquid injection vibrator 3 is inserted into the tube body 2 from a position just before the strip sheet is formed into the tube body 2, The injection vibrator 3 fills the tube body 2 with a filling liquid. Note that the filler is not limited to a filler liquid, and may be powder, granules, or the like.

The tube body 2 filled with the above-mentioned filling liquid has a horizontal sealing device 4
The filling liquid is introduced into the tank and is heated and welded in a direction perpendicular to the longitudinal direction by the horizontal sealing device 4 in a direction perpendicular to the longitudinal direction to sequentially seal the filling liquid horizontally. It forms an enclosed container i5A.

The horizontal sealing device 4 includes a rotating body 6 that rotates in a vertical plane, a large number of inner frames 7 provided on the outer periphery of the rotating body 6, and an outer frame 8 provided in each of the inner frames 7 so as to be openable and closable. By supplying the tube body 2 to the outside of the inner frame 7 from vertically above with the outer frame 8 open, and then closing the outer frame 8, the inner frame 7 and the outer frame 8 are separated. The tube body 2 is held at a desired position in a direction perpendicular to the longitudinal direction.

In this state, the tube body 2 is laterally sealed by heating and welding the sandwiched portions, thereby forming the container 5A in which the filling liquid is sealed between the pair of lateral seal portions as described above. Such a horizontal sealing device 4 is disclosed in, for example, Japanese Patent Application Laid-open No. 1986-
It is well known in the prior art, as described in Japanese Patent Application Laid-open No. 47312, Japanese Patent Application Laid-open No. 61-69510, or Japanese Patent Application Laid-Open No. 61-178806.

The mutually continuous containers 5A formed by the transverse sealing device 4 are then cut at the central portion of each transverse sealing portion by the cutting device IO to separate them into individual containers 5B. As shown in FIG. 2a, this container 5B has a vertical seal portion 5 along the conveyance direction sealed by the vertical seal device 1 described above.
a, and horizontal seal portions 5b at the front and rear in the conveying direction that are sealed by the horizontal sealing device 4, and when sandwiched between the inner frame 7 and the outer frame 8 of the horizontal sealing device 4, The belt-shaped sheet is partially bent along fold lines formed in advance to form a flat container 5B.

The cutting device IO is disposed close to a diagonally above position of a rotating body 6 constituting the horizontal sealing device 4, and includes a rotating body 11 that rotates in synchronization with the rotating body 6, and an upper part of the rotating body 11. The rotary cutter 12 is arranged and rotates synchronously. The outer peripheral surface of the rotating body 11 is provided with the container 5A or 5.
Pockets 13 for accommodating B are formed at predetermined intervals,
Negative pressure passage 1 for adsorbing and holding containers at the inner bottom of each pocket 13
4 are opened, and each negative pressure passage 14 is communicated with a negative pressure source via a rotary joint (not shown).

The continuous containers 5A delivered from the horizontal sealing device 4 to the cutting device 10 are accommodated in the respective pockets 13, and are attracted to a predetermined position in each pocket 13 by the negative pressure of the negative pressure passage 14. The containers 5A are positioned so that the spacing between the containers 5A is accurately adjusted to a predetermined spacing.

In this state, the rotary cutter 12 cuts the intermediate horizontal seal portion 5b of each container 5 and separates it into individual containers 5B, and the container forming device 20 press-forms the separated containers 5B into rectangular parallelepipeds. is supplied to At this time, the suction of the container 5B by the negative pressure passage 14 is released.

The container forming apparatus 20 has two synchronously rotating 'fJ'
The first rotating body 21 has a first clamp mechanism 23 that clamps both sides of the container 5B from both sides of the rotating body in the axial direction, and the other second rotating body 2
2 is provided with a second clamp mechanism 24 that clamps the front and back of the container 5B from both sides in the circumferential direction of the rotating body.

Further, the first rotating body 21 is provided with a first support member 25 that supports the radially inner side surface of the container 5B held by the first clamp mechanism 23, and the second rotating body 22 is also provided with a second clamp. A second support member 26 was provided to support the radially inner side surface of the container 5B held by the mechanism 24, and both support members 25 and 26 were located on the line A connecting the rotation centers of the respective rotating bodies 21 and 22. In this case, both support members 25 and 26 can hold both sides of the container 5B in the radial direction.

Therefore, the containers 5B that have been individually separated by the cutting device 10 are clamped by the first clamp mechanism 23 of the first rotating body 21 and transported as the first rotating body 21 rotates. When the container 5B is conveyed to the line A, both radial side surfaces of the container 5B are attached to the supporting members 25.
At the same time, the second clamp mechanism 24 of the second rotary body 22 clamps the container 5B at the front and rear in the transport direction. As a result, six peripheral surfaces of the container 5B are simultaneously clamped and pressed, and the container 5B is formed into a rectangular parallelepiped shape, as shown in FIG. 2b.

At this time, the clamping force by the second clamp mechanism 24 is set to be smaller than the clamping force by the first clamp mechanism 23, so that both rotating bodies 21, 22 remain in a state in which the six peripheral surfaces of the container 5B are simultaneously pressed. As the rotation progresses, the container 5B is forcibly separated from the second clamp mechanism 24, and the container 5B is transferred to the next ear folding device 100 while being held by the first clamp mechanism 23. Ru.

This ear folding device 100 bends all of the laterally protruding ears 5c formed at the front and rear sides of both sides of the rectangular parallelepiped container 5B shown in FIG.
The rotating body 101 is provided with a clamp mechanism 102 that clamps the front and rear surfaces of the container 5B in the transport direction, and the container fy5B, which is clamped on both sides in the transport direction by the first clamp mechanism 23 of the container forming apparatus 20, is clamped by the clamp mechanism. 102 so that it can be held from the front and back in the conveyance direction.

At this time, in order to smoothly and reliably transfer the container 5B from the first clamp mechanism 23 of the container forming apparatus 20 to the clamp mechanism 102 of the ear folding apparatus 100, the first clamp mechanism 23 of the container forming apparatus 20 is
A delivery device 50 for the container 5B is provided between the rotating body 21 and the rotating body 101 of the ear folding device 100.

The delivery device 50 includes an endless tenth tube 51 that extends around the outer periphery of the first rotating body 21 of the container forming device 20;
The container forming device 2 is provided with an endless 20th tube 52 extending around the outer periphery of the rotating body 101 of the ear folding device 100.
The first clamp mechanism 23 of No. 0 can clamp the container 5B on the outer periphery of the 10th tube 51, and the clamp mechanism +02 of the ear folding device 100 can clamp the container 5B on the outer periphery of the 20th tube 52. It has become.

The tenth block 51 is connected to the rotating body 10 from the rotating body 21.
With reference to the delivery position to the container 5B, the 20th wire 52 is stretched over the 10th wire 53 disposed on the front side in the transport direction of the container 5B, and the 20th wire 52 is stretched toward the front side in the transport direction of the container 5B.
The container 5B is stretched over a 20th roller 54 disposed on the rear side in the conveyance direction of the container 5B. Two of the ropes 51, 52 are disposed in the longitudinal direction and engaged in grooves formed on the outer peripheral surfaces of the rotating bodies 21, 101 and the rollers 53, 54, respectively.

Therefore, the containers 5B are the 10th container 51 and the 20th container 5B.
Both radial side surfaces of the lobe 52 are now supported, and in this state, the ear part is moved from the first clamping machine tJ23 of the container forming apparatus 20 without causing almost any slip to the both lobes 51 and 52. This allows smooth and reliable delivery to the clamp mechanism 102 of the bending device 100. The 20th tube 52 also serves to guide the container 5B from the ear folding device 100 to the ear bonding device 200 disposed downstream thereof.

The ear bending device 100 includes a first arc-shaped guide member 104 disposed on the outer periphery of the rotary body lot and fixed to the frame 103, and a first guide member 104 disposed on both sides of the rotary body 101 in the axial direction and fixed to the frame 103. 103, and a pair of arc-shaped second guide members 105 fixed to the clamp mechanism 10.
The container held between the brushes 2 and 2 passes between the pair of second guide members 105 with the outer peripheral surface supported by the first guide member 104, and at this time, the container 5B is held by the brush 2 guide member 105.
The ears 5C protruding on both sides of the sheet are respectively bent rearward in the conveyance direction to form a fold.

The container 5B that has passed through the ear bending device +00 is further supplied to the ear adhesive device 200 described above, and the ear portion 5c on the front side in the conveyance direction is attached to both sides of the container body by the ear adhesive device 200. The ears 5c on the rear side in the conveying direction are heat-welded to the rear surface of the container body, thereby completing the rectangular parallelepiped container 5C shown in FIG.

The ear bonding device 200 includes a clamp mechanism 202 that is provided on a rotating body 201 and clamps the four circumferential surfaces of the container 5B excluding the inner and outer surfaces in the radial direction, and a clamp mechanism 202 that is attached to a frame 203 along the outer periphery of the rotating body 201. Rotating body 201 of container 5B
An arcuate guide member 204 that supports and guides the outer surface in the radial direction of the container, and four guide members for each container that are provided on the rotating body 201 and that contact the ears 5c of each container 5B to press the warp against the container body. A pressure contact member 205 is provided.

In this embodiment, the clamp mechanisms 202 adjacent to each other in the conveying direction are divided into a plurality of groups of four sets each. In other words, four containers 5B can be transported in each group, and therefore each group is provided with a total of 16 pressure contact members 205.

Each pressure member 205 belonging to each group is connected to a two-film actuated cylinder device 20 via a connecting member 206.
7, all pressure contact members 205 in the same group are operated simultaneously by each cylinder device 207, and the ear portion 5C is brought close to the container body, and the ear portion 5C is brought into pressure contact with the container body. It is possible to move it to two different positions.

A total of 16 heaters 210 are provided outside the rotating body 201 to blow hot air onto each bonded portion of all the ear portions 5C belonging to the same group to heat the bonded portion. Each heater 210 is attached to an arc-shaped swinging member 211 disposed on the outer periphery of the rotating body 201.
The working arm 212 (which supports the rotating body 20
It is provided so as to be swingable about the rotation center of 1.

A cam follower 21 is provided at a required position of the swing arm 212.
3 is attached, and the cam follower 213 is connected to the cam member 2.
14 cam grooves 215, and the cam member 214
The drive shaft 216 of the rotating body 20 is driven by a motor (not shown).
By rotationally driving the swing arm 212, the swing member 211, and the heater 210 in synchronization with the rotation of the swing arm 212, the swing arm 212, the swing member 211, and the heater 210 can be reciprocated.

When the cam member 214 is rotated, the heater 210 is moved forward in the same direction at substantially the same speed in synchronization with the movement of the containers 5B in the - group, thereby adhering the ears 5c. The heater 210 is heated, and once it has advanced to a desired position, it is quickly returned so that the heater 210 can be advanced again in synchronization with the movement of the containers 5B of the subsequent group.

Therefore, the cylinder device 207 causes the pressure contact member 2 to
05 to the close position and the ear portions 5c are brought close to the container body, each ear portion 5 by each heater 210
When the heating of the bonded portion between C.
can be brought into pressure contact with the container body all at once. As a result, a rectangular parallelepiped container 5C shown in FIG. 2C is completed.

The container 5C completed in this manner is transferred in a vertical plane by the ear bonding device 200, and then transferred to the discharge device 300.
The ejection device 30 is transferred into a horizontal plane by
0 onto a horizontally arranged discharge conveyor 301.

Of the clamp mechanism 202 of the ear adhesive device 200,
Clamp member 2 that supports the rear surface of the container rlr5G in the conveyance direction
02a is formed in an L-shape so as to be able to support the rear side in the conveying direction and the inner surface in the radial direction of the container f:i5G, and the operating rod 220 is provided to be movable forward and backward in the radial direction of the rotating body 201. attached to the tip.

On the other hand, a clamp member 202b that supports the front surface of the container 5C in the transport direction and a pair of clamp members 202c that support both sides of the container 5C in the transport direction are attached to the rotating body 201.

The inner end in the radial direction of the operating rod 220 is interlocked with a cam member 221 fixed to the frame 203.
When the completed container 5C approaches the discharge device 300, the cam member 221 causes the completed container 5C to project outward in the radial direction,
The container 5C can be pushed outward in the radial direction.

At this time, the clamping mechanism 202 that clamps the four peripheral surfaces of the container 5C is released, and therefore, when the clamp member 202a is pushed radially outward via the operating rod 220, the clamp member Since the container 5C supported by the container 202a is pushed outward in the radial direction relative to the other clamp members 202b and 202C, the clamp members 202b,
202c is relatively removed. Further, at a position forward of the guide member 204 in the transport direction, an arc-shaped guide member 222 is continuously provided to support the radially outer surface and both side surfaces of the container 5C as the container 5C is pushed out.

On the other hand, the ejection device 300 is connected to the ear adhesive device 200.
A rotating body 3 rotating in a horizontal plane in synchronization with the rotating body 201 of
02, and this rotating body 302 is the rotating body 20.
It is disposed at a substantially horizontal height position passing through its axis at a radially outward position of 1.

As shown in FIG. 3, on the upper surface of the rotating body 302, extrusion members 303 that protrude outward in the radial direction are attached at four positions equidistantly spaced in the circumferential direction, and each extrusion member 30
By rotating the push-out member 303 above the guide member 222 so as to cross the axial direction of the rotating body 201, the push-out member 303 is conveyed from below to above the guide member 222. Container 5
By engaging with the side surface of C, the container 5C can be pushed out in the direction of rotation of the rotating body 302.

Furthermore, an arc-shaped guide member 304 is arranged and fixed around the rotary body 302 along the warp to support and guide the outer surface of the container 5C in the radial direction with respect to the rotary body 302. A guide member 305 is arranged and fixed to support the bottom surface of 5C. The end of this guide member 305, that is, the artificial part of the container 5C, is formed with an inclined part 305a that is inclined diagonally downward. When extruding in the rotational direction in the horizontal plane, it can be guided obliquely upward along the inclined portion 305a.

A guide member 306 is disposed and fixed above the inclined portion 305a along the guide member 305, and the container 5C is guided obliquely upward along the inclined portion 305a by the guide member 306. This prevents it from flying out upwards. Further, the discharge conveyor 30 is located at a position opposite to the container delivery position from the rotating body 201 to the rotating body 302 of the ear bonding device 200.
1 is installed.

Therefore, the container 5G that has been conveyed in a vertical plane by the clamp member 202a, pushed out toward the rotary body 302, and guided by the guide member 222 is moved by the clamp member 202a by the extrusion member 303 provided on the rotary body 302. It is pushed out horizontally onto the guide member 305 from above, is further transferred in an arc shape along the guide member 304, and is delivered to the discharge conveyor 301 in an upright state.

In addition, in the above embodiment, the first
A first holding part that holds and conveys the container by a first clamp mechanism 23 provided on the rotating body 21 is also used as the ear folding device 100.
The clamp mechanisms 102 provided on the rotary body 101 constitute the second holding parts, but the invention is not limited to this, and the containers may be held and transported using a vacuum, a pocket, or the like.

To explain the structure of the container forming apparatus 20 in more detail, in FIGS. 4 and 5, the container forming apparatus 20 is shown in FIGS.
The first rotating body 21 is formed into a disk shape and is attached to a horizontally disposed drive shaft 28, and the drive shaft 28 is interlocked with a motor (not shown). Then, brackets 29 are attached to the same positions on both end faces of the first rotating body 21 at equal intervals in the circumferential direction, and the first clamp members 23a are attached to each bracket 29 so as to be swingable through the glaze 30. ing.

Each of the first clamp members 23a is connected to the first rotating body 2.
A pair of first clamp members 23a are disposed in the radial direction of the first rotating body 21 and are located at the same position on both end faces of the first rotating body 21. They are made to protrude outward from the outer periphery of the rotating body 21 and are opposed to each other, so that the side surface of the container 5B can be held between the opposing surfaces. The clamping surface 23b of the container is formed into a convex cylindrical shape whose axis is tangential to the first rotating body 21, so that the container 5B can be reliably gripped. Therefore, each of the first clamp mechanisms 23 is constituted by a pair of first clamp members 23a located at the same position on both end faces of the first rotating body 21.

Further, each pair of first clamp members 23a has an 0I
Gears 31 are formed near the pivot portions of I30, and by meshing both gears 31 with each other, both clamp members 23a can be opened and closed in opposite directions. A cam follower 32 is provided on one of the first clamp members 23a, and the cam follower 32 is engaged in the cam groove 35 of the cam member 34 fixed to the frame 33, so that the cam follower 32 is connected to the first rotating body 23.
When the first clamp members 23a are rotated integrally with the rotation of the first clamp members 23a, each first clamp member 23a can be opened and closed according to the cam curve of the cam groove 35.

Further, the first rotating body 21 has a cylindrical portion 2]a on the outer circumference thereof.
A predetermined position on the outer peripheral surface of the cylindrical portion 21a is used as a first support member 25 that supports the radially inner side surface of the container 5B which is clamped by the first clamp mechanism 23 described above. Then, a negative pressure passage 36 is opened in each first support member 25, and the negative pressure passage 36 is communicated with a negative pressure source via a rotary joint (not shown), and the cylindrical portion 21a
Two parallel grooves 3 formed along the circumferential direction on the outer peripheral surface of
The above-mentioned 10th loop 51 is hung within each of the loops 7 and 7.

On the other hand, as shown in FIGS. 6 and 7, a container forming apparatus 20
The second rotating body 22 is composed of two disks 22a arranged in parallel, and each date plate 22a is driven by the drive lTiIb2.
8 and is attached to a drive shaft 40 arranged parallel to the drive shaft 8.

This drive shaft 40 is interlocked with the drive shaft 28 through a drive system (not shown), so that the first rotary body 21 and the second rotary body 22 can rotate in synchronization.

Between the two discs 22a, second clamp members 24a are arranged at equal intervals in the circumferential direction, and the second rotating body 22a
Each is attached so as to be swingable in the circumferential direction of the second rotating body 22 by a glaze 41 provided in one recess direction. Each second above
The radially outer end of the clamp member 24a is connected to the disk 22a.
A pair of mutually adjacent second
The front and rear surfaces of the container 5B can be clamped by the clamp member 24a, and the clamping surface 24b
It is formed flat to make it easier to separate. Therefore, the second clamp mechanism 24 is configured for each second clamp member 24a adjacent to each other.

At the radially inner end of each second clamp member 24a,
Cam followers 43 are respectively attached through elongated holes 42 formed in the disk 22a, and each cam follower 43 is engaged in a cam groove 46 of a cam member 45 fixed to a frame 44. When the cam follower 43 is rotated integrally with the rotation of the second rotating body 22, the second clamp members 24a facing each other in the circumferential direction are moved back and forth according to the cam curve of the cam groove 45. It can be opened and closed by swinging.

Further, the second support member 26 described above is provided at the intermediate position of each second clamp member 24a on the outer peripheral portion of the second rotating body 22.
The container supporting surface of the second supporting member 26 is formed into a flat convex spherical surface in order to securely press and hold the container 5B with the first supporting member 25.

In the container forming apparatus 20 having the above configuration, the first clamp mechanism 23 of the first rotating body 21 is connected to the cutting device 1 described above.
When the first clamp mechanism 23 clamps the container 5B housed in the rotary body 11 of the rotary body 11, the negative pressure passage on the side of the cutting device 10 is opened. 14 is cut off from the negative pressure source, and 7JJ
A negative pressure passage 36 on the one rotating body 21 side is communicated with a negative pressure source.

Therefore, the container 5B is clamped by the first clamp mechanism 23 and at the same time is attracted to the first rotating body 21 by the negative pressure of the negative pressure passage 36.

Container 50 clamped by the first clamp mechanism 23
When the container 5B is transported to the line A connecting the rotational axes of the first rotary body 21 and the second rotary body 22 as the first rotary body 21 rotates, both radial side surfaces of the container 5B rotate during the first rotation. The first support member 25 provided on the body 21 and the second support member 26 provided on the second rotating body 22 automatically sandwich the support member 25 .

Further, since the pair of front and rear second clamp members 24a provided on the second rotating body 22 are transferred to the line A in an open state, they are clamped by the first clamp mechanism 23 as shown in FIG. The container 5B has its front and rear horizontal seal portions 5b in contact with the opened second clamp member 24a, and the first rotating body 2
While being bent to the first side, the -pair of second clamp members 24
inserted into a.

In this state, due to the cam curve of the cam groove 46, the 71g2 clamp member 24a located on the front side in the conveyance direction of the container 5B is moved counterclockwise in FIG.
The second clamp members 24a located on the rear side in the conveying direction are rotated substantially simultaneously in the clockwise direction in FIG. 6 to clamp the container 5B at the front and rear in the conveying direction.

Therefore, the six peripheral surfaces of the container 5B are simultaneously clamped and pressed by the first clamp mechanism 23, the first support member 25 and the second support member 26, and the second clamp mechanism 24, so that, as shown in FIG. 2B, It comes to be formed into a rectangular parallelepiped shape. At this time, the first clamp mechanism 23 is further closed slightly to increase the pressure applied to the container 5B,
B may be formed into a rectangular parallelepiped shape better.

Further, as described above, the clamping force by the second clamp mechanism 24 is set smaller than the clamping force by the first clamp mechanism 23, and the clamping force by the clamping surface 23 of the first clamp mechanism 23 is set to be smaller than the clamping force by the first clamp mechanism 23.
b has a convex cylindrical shape, and the clamping surface 24b of the second clamp mechanism 24
Since the two rotating bodies 21 and 22 continue to rotate while the six peripheral surfaces of the container 5B are simultaneously clamped and pressed, the container 5B is clamped by the first clamp mechanism 23. As it is, it is forcibly separated from the second clamp mechanism 24 and transported toward the next ear bending device +00.

When the molding of the container 5B is completed, the first clamp mechanism 23 is opened only within a predetermined minute rotation range, and during that time, the container 5B is suctioned and held on the first rotating body 21 by the negative pressure of the negative pressure passage 36. do. If communication with the negative pressure source can be cut off by a solenoid valve (not shown) for only the negative pressure passages 36 located within the above-mentioned minute rotation range, or more simply for all the negative pressure passages 38, liquid leakage, etc. can be prevented. This makes it possible for defective containers to fall downward at that point and be discharged from the normal line.

Further, if necessary, at least one of the first support member 25 and the second support member 26 may be provided to be movable forward and backward in the radial direction. 5B may be delivered.

Furthermore, in the above embodiment, each clamp mechanism 23.
24 is provided on the rotating bodies 21 and 22, and the material is circulated and conveyed by the rotation thereof, but the present invention is not limited to this, and it may be provided on a circular conveyance means such as an endless line or a conveyor.

"Effects of the Invention" As described above, in the container forming apparatus according to the present invention,
For the first circulation conveyance means consisting of a rotating body etc., it is sufficient to provide a first clamp mechanism and a first support member, and for the second W1 ring conveyance means, a second clamp mechanism and a second support member may be provided, respectively. The structure of each circulation conveyance means is simplified, and therefore it can be manufactured at a lower cost than the conventional one in which all of them are incorporated into a single rotating body, and maintenance and inspection are also easier. .

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing the entire paper container manufacturing apparatus according to an embodiment of the present invention, and FIGS. 2a, 2b, and 2c are perspective views showing the state of the container manufacturing process, respectively. 3 is an enlarged plan view of the discharge device 300, FIG. 4 is a partial enlarged view of the main part of the 'fJ1 rotating body 21 that constitutes the container forming apparatus 20 shown in FIG. 1, and FIG. ■Cross-sectional view along the line,
FIG. 6 shows a second container constituting the container forming apparatus 20 shown in FIG.
A partially enlarged view of the main part of the rotating body 22, FIG. 7 is the part shown in FIG.
■It is a sectional view along the line. 5B... Container 20... Container forming device 21... First rotating body (transporting means for first circulation TI) 22
- Second rotating body (second circulating conveyance means) 23... First
Clamp mechanism 24...Second clamp mechanism 25...
First support member 26...Second support member Fig. 3

Claims (1)

[Scope of Claims] A first clamp mechanism that clamps the side surface of the container from both sides in the conveying direction of the container, a first circulation conveyance means that circulates and conveys the first clamp mechanism on a predetermined movement trajectory, and A first support member that is provided on the circulation conveyance means and supports the inner surface of the container from inside the circulation locus, and a second support member that clamps the front and rear surfaces of the container from the front and rear of the conveyance direction of the container.
a clamp mechanism, a second circulation conveyance means for circularly conveying the second clamp mechanism on a predetermined movement locus in synchronization with the operation of the first circulation conveyance means; a second support member that supports the inner surface of the container from inside the trajectory, and the first support member and the second support member are moved to a predetermined position by synchronized operation of the first circulation conveyance means and the second circulation conveyance means. The first clamping mechanism, the second clamping mechanism, the first supporting member, and the second supporting member simultaneously clamp the circumferential surface of the container at the same position to press-form the container. A container forming device featuring: