KR20010020031A - Mold ascent and descent apparatus of forming device of paper cup - Google Patents

Abstract

PURPOSE: A mold lifting system for a paper cup molding machine is provided to reduce manufacturing costs by designing and manufacturing the molding machine compactly and to lengthen the useful life of the machine by reducing a mechanical load. CONSTITUTION: A curling mold frame(7) is installed to be freely lifted by a boss(9) inserted to a lift guide shaft(8) arranged in the vertical direction and connected at the lower end of the curling mold frame. A spring(10) is inserted into the curling mold frame, and a curling plate(11) is coupled to the curling mold frame, to thereby constitute a curling mold(3) for curling the upper edge of a paper container. A lever support frame(12) is installed upright in front of the curling mold, and a lever(13) arranged in the horizontal direction is connected to the lever support frame through a hinge bolt(14). A link(15) interconnects the front end of the lever and the side surface of the curling mold frame, and bolts(16a,16b) are attached to the link for the jointing motion of the link. A bar(17) is installed in the horizontal direction at both outer ends of the lever, and the lever is installed to be slidable within a bar insertion frame(22) coupled at the end of a vertical connection rod(19) coupled to a fixing board(18) in such a manner that the width is controlled by a coupling bolt(21) through an elongated hole(20).

Description

Mold lifting device of paper cup forming machine {Mold ascent and descent apparatus of forming device of paper cup}

The present invention relates to a mold lifting apparatus of a paper cup molding machine, and in detail, in a paper cup molding machine manufactured by a sequential process by an upper mold driven in a rotational manner and a lower mold operated in a hoisting operation, a lifting table equipped with lower molds is lifted by a lifting drive cam. In driving, it is possible to miniaturize the cam by extending the stroke by allowing the lever lift operation device, which is an auxiliary lifting operation means, to allow additional ascension at the maximum top dead center of the cam.

Paper cups are coated with a thin vinyl coating on the outer surface of the rolled fabric to prevent leakage, and arranged on the outside to match the cup's flat pattern, forming a pattern by gravure printing (offset printing for small-volume logos). In the paper cup forming machine is produced as a cup by punching the cup base in the cup cylindrical development state in the paper cup forming machine, the primary cylindrical molding process of laminating the cut cup paper as described above and automatically supplying one by one to the cylindrical And the base coated on the side of the paper cup forming machine by winding the underlay on the paper cup forming machine, and continuously unloading and punching, punching and punching the underlay, and inserting the underlay into the cup cylinder formed in the primary cylinder forming process. The process leads to the underlay heating bonding process.

In the underlay heating bonding process, the lower part of the cup cylinder with the underlay is usually preheated and preheated by the heater, and the upper end of the cup is curled to the outside in the second curling process and the lower end is bent inward. The process of curling up and down so as to wrap and wrap the lower bent portion of the underlay is carried out at the same time up and down.

At this time, the bottom of the mold to dry the inner side of the inside of the heat heater is built in the heat inside the bottom of the cup cylindrical body while heating the vinyl coating layer in a semi-melted state to be smoothly bonded in the next lottery bonding process To be able.

The cup cylinder, which has been sufficiently preheated by the lower side being rolled inward, is brought into the lottery bonding process, and the rotator ball which rotates and revolves in the state where the cup cylinder is fitted to the outside of the bottom of the cup cylinder, i.e., the underside is fitted. By pressing the lower periphery is a paper cup is completed.

The paper cup forming machine manufactured by such a process is continuously manufactured by three circular-envan rotation operations in which the molds are mounted and the opposing lifting connection operation of the upper and lower forming molds. Each time the film is taken and opened, the Yenban rotates one space at a predetermined angle to make a continuous supply of paper cups continuously by a sequential process. The elevating driving cams of both sides that lift and lower the platform equipped with the lower molds are operated. The size is determined in proportion to the required lifting width, that is, the up and down strokes.

Paper cups are becoming more and more versatile, ranging from 9oz, which is not limited to vending machines (6.5oz), to large cups, which are used as cups for udon, jjajangmyeon and red bean shavings at rest areas. In the case of a paper cup forming machine for manufacturing cups for vending machines, the stroke is small, so the size of the cam is not a big problem. However, in the case of a large cup, the cam becomes relatively large as the stroke is increased. Not only is this increased, but the noise is increased and the working environment is deteriorated, and the machine is crowded, and the failure of the machine shortens the life of the machine.

The present invention has been made in view of the above drawbacks, in addition to the lifting stroke of the cam for lifting the lifting platform equipped with the lower molds by the auxiliary lifting means by the lever operation when the cam reaches the maximum top dead center The additional stroke allows the extended stroke to be obtained without increasing the size of the cam, reducing manufacturing costs and realizing low noise driving, thus improving the working environment and reducing mechanical loads to extend the long-term life without failure. It would be.

1 is a partially omitted perspective view showing a state in which the present invention is mounted on a paper cup molding machine

2 is an enlarged perspective view of main parts of the present invention;

Figure 3 is a side view before operation of the present invention

Figure 4 is a side view after the operation of the present invention

<Description of the code | symbol about the principal part of drawing>

1-paper cup forming machine 2-platform

3-Curling Mold 4-Lattice Mold

5-Upper Enban 6-Cup Cylinder Fitting Mold

7-Curling Mold Bonnet 8-Lift Guide Shaft

9-Boss 13-Lever

14-hinge bolt 15-link

17-Movable Bar 18-Fixture

19-Vertical Connecting Rod 22-Movable Bar Fitting

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

A primary cup cylinder forming process for supplying one piece of raw paper cut in a laminated state by a vinyl coating on the inner surface or an inner surface and a printed pattern formed on the outer surface, rolled by a cylinder to heat-bond the sides; A secondary underlay molding inserting process, in which a cup cylinder that has been formed in the primary cup body forming process is punched by punching a vinyl-coated base on the inner surface of a tape-shaped roll state, and a molded underlay is inserted into the cup body; 3rd curling process to dry the bottom side and thicken the bottom side after the preheating of the bottom, and the underlay which is pressed and inserted by a rotlet ball that rotates while rotating the inside of the lower side. Normally, the paper cups are continuously manufactured by the fourth lottery bonding process for bonding the inner side of the cup to the inner side of the cup. In the paper cup forming machine 1, the lower mold, that is, the curling mold 3 and the pallet mold 4 in the third curling process and the fourth lattice bonding process, mounted on the platform 2, are lifted up. The upper end plate 5 is instantaneously fitted to the lower side of the cup cylinder C which has been rotated and conveyed through a preheating process while being fitted to the cup cylinder fitting molds 6 which are arranged on the circumference at an angle and are projected downward. In the curling mold 3, a curling process is performed to form a rim around the upper side, and at the same time, the lower side of the cup cylinder C in which the underlay is fitted is curled inwardly. The number coated by (3) by pressing in the heated state the portion where the lower side is curled inward together with the bent circumference of the underlay fitted by the lottery balls rotated by rotation and revolution in the lower inner side. The cup is finished and the coating layer is fused.

Such a series of processes are performed by the lifting stroke of both lifting drive cams (CM) for lifting and lowering the lifting platform 2 equipped with the lower molds. The larger the cup, the larger the cup, depending on the size of the cup to be molded. Since the stroke must be large, the size of the cam is proportional to it.

The present invention is configured by connecting the auxiliary lifting means by lever operation with the curing mold (3) in order to obtain a stroke that can be molded to the cup of the largest size as the cam size applied to a small cup forming machine, which will be described in detail. Is as follows.

The curling mold 3 according to the present invention, unlike the conventional lifting operation in the state of being mounted on the platform 2, is a secondary ascending after the lifting as shown in FIG. The boss (9) fitted to the elevating guide shaft (8) vertically installed in all directions is connected to the lower side so as to freely elevate and raise and lower the spring (10) according to the fastening method. Inserting and fastening the curling plate 11 so that the upper edge of the cup can be curled to configure the curling mold (3).

The front side of the curling mold (3) configured as described above is installed with a "ㅂ" shaped lever support frame (12) upright, by fastening the lever 13, which is horizontally installed on both sides of the upper part by a hinge bolt (14) When the lever 13 is divided into three parts by eccentricity without the center of gravity being the point of rotation, 1/3 is turned toward the curling mold 3, and 3/2 is fastened to protrude outward. The connecting bolts 16a and 16b are connected to each other by a link 15 between both ends of the front end and the curling mold main frame 7 so as to allow joint movement, and the lever 13 of the lever 13 is rotated freely. Both outer ends are installed to connect the movable bar 17 laterally, the fastening bolt 21 is fastened so that the width can be adjusted by the fastening bolt 21 through the holder 18 and the vertical long hole 20 fastened to the upper side of the frame of the paper cup molding machine. Rectangular movable bar fastened to the lower side of the vertical connecting rod (19) It is assembled by inserting and installing in a slidable state in the rim 22.

According to the present invention configured as described above, when the paper cup forming machine starts to operate according to a normal driving, the cup cylinder fitting mold 6 of the upper end plate 5 is formed in a cylinder in the first process, and the base is fitted in the secondary process. The cylinder C is inserted and rotated and conveyed so that the upper end plate 5 is in a pause state while the vertical centers of the upper and lower molds coincide with each other, and at the same time, the platform 2 on which the curling mold 3 is mounted. Ascends as the lifting drive cam (CM) rotates on both sides of the lower.

As the lifting platform 2 is lifted up, the lever 13 which is fastened to the lever support frame 12 in a rotatable state at the same time as the curling mold 3 mounted is raised, the hinge bolt 14 is rotated to a supporting point. As the movable bar 17 of the outer end is inserted into the movable bar fitting frame 22 which is fixed by the holder 18 and the vertical connecting rod 19 on the upper frame of the paper cup forming machine, it can be lifted. The front side, which is fastened to the curling mold main frame 7 by the link 15, becomes more and more lifted up by the lever action, and when it reaches the top dead center of the lift drive cam CM, the lift table (2) is the maximum lift state can not be raised any more, but the link (15) fastened to both sides of the curling mold main frame 7 by the lever 13 actuated by the lever does not lift the outer end movable bar (17) of the lever Lost Is ever be built into peppers is lifted held up bonteul curling mold (7) on both sides.

At this time, since the curling mold main frame 7 is inserted into the elevating guide shaft 8 in a slidable state by the bosses 9 on all sides, the curling mold main frame 7 can be further raised, and thus the upper cup cylindrical fitting mold 6 It is to be carried out a curling process to be rolled out to the outer periphery of the upper surface of the cup cylinder (C) while being fitted to the lower side while being curled into the lower side.

In the present invention as described above, the upper and lower strokes of the lifting table in the paper cup forming machine are not driven simply by the lifting driving cam, but are added to the maximum top dead center of the cam by a separate lever that acts as a lever to further raise the curling mold main frame. It is possible to reduce the size of the cam by the curling action, which makes it possible to apply the paper cup forming machine to form a large cup with a large capacity.It is possible to design and manufacture the machine more compactly, thereby reducing the manufacturing cost. Significant savings can be achieved, and the load on the machine can be reduced to minimize the occurrence of failures and the service life can be extended for a long time, while minimizing the occurrence of noise to greatly improve the working environment.

Claims (1)

In the conventional paper cup forming machine which produces the paper cup continuously according to the angular rotational motion of the upper end plate 5 equipped with the cup cylindrical fitting molds 6 and the lifting operation of the platform 2 equipped with the lower molds, the conventional structure In installing the curling mold (3) having the upper and lower ends of the curling mold main frame (7) fitted to the elevating guide shaft (8) which is vertically installed in all directions to the lower side, Lever support frame 12 of the "세워" shape is installed upright, and the lever 13 is installed on both sides of the upper side eccentrically by the hinge bolt 14 to fasten in a state where the long side protrudes outward. A connecting bolt is connected between both ends of the tip and both sides of the curling mold main frame 7 with a link 15 to allow joint movement. (16a) (16b) is fastened in a freely rotatable state, the both ends of the lever 13 is installed to connect the movable bar (17) laterally, the fastener 18 is fastened to the upper side of the frame of the paper cup molding machine And assemble in a slidable manner into a rectangular movable bar fitting frame 22 fastened to the lower side of the vertical connecting table 19 fastened so that the width can be adjusted by the fastening bolt 21 through the vertical long hole 20. Mold lifting device of the paper cup forming machine, characterized in that configured.