JPS59165639A - Method of molding paper corn - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming a paper cone, and more specifically, it involves pulling out a long sheet of paper coated with a thin resin film wound into a roll, cutting it into pieces of fixed length, and cutting the paper cone. A rectangular sheet of paper is inserted between a pair of conical forming cones and a suppression cone that rotate in opposite directions at the same speed, and the paper sheet is pushed onto the surface of the forming cone by the adsorption action of the forming cone. While winding the sheet into a conical shape, molten resin is sprayed onto the required portions to polymerize the edges of the sheet, pressurized between the forming cone and the pressing cone, and the portions to which the molten resin is applied after cutting are heated and melted. The present invention relates to a method of forming a paper cone, in which the outer peripheral edge of the paper sheet is cut in a direction perpendicular to the central axis of the conical shape to finish the cut end in a perfect circle.

The applicant applied glue to one side edge of a rolled sheet of paper, cut this sheet of paper into a certain length, made a rectangular sheet of paper, and then formed it into a cone shape. Cutting the outer peripheral edge of the square paper sheet in a direction perpendicular to the central axis of the conical shape,
He invented a method for forming a paper cone with a perfectly circular cut.
The method described above, which involves the step of gluing paper sheets, has a limitation in forming speed because it takes a long time for the glue to solidify, and also requires manual labor to replenish the glue and prevent the surface of the glue from solidifying and preventing oxidation.
It could not be unmanned.

The purpose of this invention is to eliminate the above-mentioned drawbacks, and its feature is that a roll of paper is cut into a certain length, and the square paper is shaped into a conical shape. In order to form a paper cone by cutting the outer periphery of the conically wound paper sheet in a direction perpendicular to the central axis of the cone and finishing the cut into a perfect circle, By adding molten resin to the required parts of the paper sheet, and heating and melting the sprayed part after cutting, the edges of the paper sheet are polymerized and bonded together under pressure, thereby speeding up the molding speed and improving the molding process. The present invention provides a paper cone molding method characterized in that it can be unmanned. An embodiment of the present invention shown in the drawings will be described in detail below.

The paper sheet used in this method is a long sheet of paper 1a with a constant width, on which a thin resin film 1b is formed by thinly coating a resin such as polyolefin. Mark IC for measuring (number)? : Wrap the paper printed at regular intervals into a roll, pull it out, and cut it along the chain line to make the rectangular paper sheet 101 shown in Fig. 2.
The molten resin is added to the surface coated with the resin thin film 1b using a molten resin spraying means described later, and hot air is blown from a hot air oven through a heat nozzle through an insulated duct to prevent the resin from solidifying, and the cut end is heated as shown in Fig. 3. Roll it up from 1d to make a conical shape,
The adhesive part of the resin thin film is pressed against the opposing paper 13 surface by winding, and the outer periphery is cut in a direction perpendicular to the central axis of the cone. Form a paper cone IAft as shown in the figure. The outer peripheral chips 3 separated by the above-mentioned cutting correspond to a substantially triangular portion outward from the arcuate line 1e at the corner of the rectangular paper sheet 101, as shown by the chain line in FIGS. 2 and 3. It is something. A method for manufacturing a paper cone having such a structure will be described in detail below.

As shown in FIGS. 6 and 7, the resin thin film-coated paper 1 is wound into a roll, and its winding shaft is supported on a bearing 6 of a support arm 5 protruding to one side of the machine body 4, and the roll surface is It is pressed by the contacting spring piece 7 and pulled out with an appropriate tension applied. The resin thin film coated paper 1 is pulled out between a drive roll 16 and a pressure roll 17 via guide rolls 8 to 11 and a tension roll 12'i which are pivotally supported on the machine body 4, and is pulled out between a drive roll 16 and a pressure roll 17 by the cooperation of a fixed blade 18 and a rotary blade 19. It becomes a rectangular sheet of paper under shearing action. Before and after this shearing process, the fixed blade 18
1 and 2 on one side of the paper sheet 101 before and after the rotary blade 19.
As shown in FIGS. 9 to 13, a heat insulating hose 61 is connected to the hot melt fusing machine 60 (applicator) shown in FIG. Then, the molten resin was added by spraying, and the 2 parts of the belt-shaped frame were heated from a hot blast stove (not shown) on the side edges of the belt-shaped frame.
Hot air (300-400℃) guided by 13
) is provided to prevent the molten resin from solidifying.

In Fig. 14, 6 is an air piston, brocade is an air cylinder, 67 is a ball tip, 1 is a heating element, ω is an air population, 70 is an insulator, 71 is a solenoid pulp, and 72 is a thermostat. It shows.

Further, the drive roll 16 and the rotary blade 19 are rotated in conjunction with each other by an interlocking mechanism shown in FIG. The rotary blade 19 rotates a chain wheel 21 attached to its center shaft by an electric motor n, and the drive roll 16 is rotated by a differential gear group 23 at the other end of the six axes m.
It is attached to a 6-shaft γ to which a chain wheel is fixed, which is rotated by a chain band 3 which is suspended on a chain wheel that rotates through a chain wheel.

However, the worm ring is loosely passed through the shaft for centering, and the worm 4 meshing with the worm ring is rotated by an induction motor 30f during the required time described below, and the differential gear group and Drive roll 1 through
The rotation speed of the 6-axis γ of 6 and the rotation speed of the central axis addition of the rotary blade 19 are relatively finely adjusted. The rectangular sheet of paper 101 cut by the rotary blade 19 slides down on the guide plate 32 set in an inclined manner as shown in FIGS. 9, 12 and 13, and approaches the conical forming cone. One end of the paper sheet 101 is attracted to the molded cone by the vacuum suction action of the plurality of pores formed in the molded cone.

As shown in FIG. 10, the molded cone 33 is rotated in conjunction with the electric motor 22 via a bevel gear blade meshing with a bevel gear m attached to a tube shaft having a center hole 35 communicating with the air hole 34.
The bevel gear 41f meshes with the positive gear mounted on the rotating shaft 39, and then the pressing cone 42 rotates at the same speed in the opposite direction to the forming cone blade.

As shown in FIG. 11, the suppressing cone 42 is necessarily attached to a swinging arm member with a cam 0 so that it approaches or separates from the molding cone 33.

The center hole of the forming cone 33 enters into the focal plane 45 and opens, and is connected to the air box 45 with a vacuum intake pipe 47' and a compressed air pipe 47'), and when the paper sheet 101 approaches the forming cone wing, the intake pipe 46 is actuated to adsorb the paper sheet 101 through the pores, and at the same time, the suppression cone C comes close to the forming cone blade, and both cones rotate in opposite directions at the same speed, thereby winding the paper sheet 101 around the forming cone blade. .

A circular cutter 51 is attached to the rotating shaft of the regular gear 49 that meshes with the regular gear fitted to the tube shaft 36 of the molding cone, and the circular cutter 51 is used to constantly cut off the inner end of the molding cone 33. Rotates in contact with the stepped surface. Therefore, the paper sheet 101 that has been cut by the rotary blade 19 and slid down on the guide plate 32 is fed between the forming cone 33 and the pressing cone guide, as shown in FIG. 12, and its front edge 1d is The paper leaf 10 is attracted to the pores 34 of the molded cone and rotated at the same speed in opposite directions of both cones.
1 is wound once in contact with the molded cone wing as shown in FIG. In this case, the quadrilateral paper sheet 101 is cut off by a circular cutter 51 at a portion outward from the arcuate line 1e at the corner shown in FIG. is ejected from the aircraft. The paper cone that has been wound around the molded cone 33 and glued at the side edges to form the paper cone is separated by the pressing cone 42 and the center hole of the molded cone is switched to communicate with the closed compressed air pipe 47 of the intake pipe 46. The paper cones that are formed and released are then gradually inserted into a certain number of paper cones. A vacuum pump 3 and an air compressor 55 are provided outside the machine body from which external pressure is thrown out, and each is connected to an intake pipe 46 and a compressed air pipe 47 to the molded cone 33 so that the solenoid valves are activated and switched at appropriate times. do.

The discharge duct 52 is configured to draw in and discharge the chips 3 as a negative pressure using a flow velocity generated by jetting compressed air.

A pair of phototube detectors 5 are mounted on the machine base below the molded cone 33.
7, 57, and when there is a sheet of paper 101 that is not properly wound around the forming cone 33 and falls downward, the rotation of the electric device is stopped through the phototube detector 57, and the cause of the malfunction is detected. shall be inspected and repaired.

Further, the paper leaf 101 VC has a trademark and other appropriate figures printed on it, and when it is rolled up and formed into a paper cone, it is desirable that the position of the figure be the same on all paper cones. Mark ICs are displayed at predetermined intervals on the front side of the paper sheet 101 as the paper sheet 101 moves between the guide rolls 9 and 10. do.

However, when the position at which the paper sheet 101 is cut with the rotary knife 9 is slightly shifted forward or backward from the normal position, the speed at which the paper sheet 101 is fed by the drive roll 16 is finely adjusted to slow down. , an induction motor for that purpose (
(support) is properly operated in conjunction with the detector 59.

The paper cone forming method of the present invention is configured as described above, and the paper sheet is not cut into fan shapes in advance, but is wound into a roll as long as it is, and is formed into a cone shape. The paper cone is formed by cutting irregular parts around the periphery, and has the advantage of being able to be mass-produced in one continuous process.

However, if the paper cone is a blank piece of paper, it is possible to mold it into a certain shape using paper leaves cut to a certain length, but generally paper cones have the name and trademark of the confectionery manufacturer. Since the patterns of idols are expressed, it is necessary to ensure that the positions of the patterns on each paper cone are not irregular.

The present invention is capable of relatively finely adjusting the rotational speed of each of the shafts 27 and 20 of the drive roll 16 that feeds the paper sheet 101 and the rotary blade 19 that cuts the paper sheet, and furthermore, the paper sheet 101 is formed into a molded cone. When the cone is sandwiched between the cones 33 and 42 and wound into a conical shape, the cone may fall from between the cones 33 and 42 due to poor clamping or improper winding due to some reason. Immediately detects and continuously supplies the filter paper to prevent poor winding of the filter paper leaves, and furthermore, it does not scatter the chips generated by cutting the outer circumferential edge of the conically wound into a perfect circle. It has features such as having a discharge duct 52 and discharging the annual air to one location outside the machine, making it suitable for continuous mass production.

As described above, the present invention involves cutting paper sheets wound into a roll shape into a certain length, making rectangular paper sheets, and winding the paper sheets into a conical shape (11). In order to form a paper cone by cutting the outer peripheral edge of the leaf in a direction perpendicular to the central axis of the cone and finishing the cut into a perfect circle, a molten resin is added to the required portion of the paper leaf before cutting. , by heating and melting the spray-added portion after cutting and polymerizing the edges of the paper sheets and adhering them under pressure, it is possible to speed up the molding speed and make the molding unmanned. It is.

Furthermore, since the gluing is done automatically using a hot-melt fusion machine, there is no need to prepare before work, prevent surface hardening, clean up after work, etc., making it easy to automate cone molding. Since it can be operated unmanned, it has the advantage of being able to process corn at low cost and in large quantities.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view showing a part of a long sheet of paper for forming a paper cone, and FIG. 2 is a front view showing a part of a long sheet of paper for forming a paper cone. Figure 3 is a front view of the paper sheet cut to the length necessary to form it, Figure 3 is a perspective view of the paper sheet rolled inward from one end to form a cone (12), Figure 5 is a perspective view of the cone, Figure 5 is Figure 4. A-A cross-sectional view, FIG. 6 is a front view of the paper cone forming method, FIG. 7 is a side view, FIG. 8 is a perspective view of the main parts showing the interlocking relationship between the drive roll and the rotary blade, and FIG. 9 Figure 10 is a perspective view of the main part showing the state in which a sheet of paper cut by the rotary blade slides on the guide plate and falls between the forming cone and the suppression cone, and Figure 10 is a plane cut along line C-C in Figure 9. Figure 11 is a side view cut along line C-C in Figure 9, Figure 12 is a front view showing the rotation direction of the forming cone, suppression cone, and circular cutter, and Figure 13 is a side view taken along line C-C in Figure 9. FIG. 14 is a front view of main parts showing a state in which chips are sucked into a discharge duct, and FIG. 14 is a configuration diagram showing an example of a hot melt fusing machine. 101... Paper leaf, 1d... Cut end, le... Arc-shaped line, 2... Frame, 3... Chips, 4... Body, 5...
... Support arm, 6... Bearing, 7... Spring piece, 8, 9, 1
0.11... Guide roll, 12... Tension roll, 13... Duct, 15... Heating (14 nozzle, 16... Drive roll, 17... Pressure roll, 18... Fixed blade, 19...Rotating blade, adjustment...Center movement, 21...Chain wheel, n...Electric motor, vane...Differential gear group, 24...Chain wheel, 5...Chain body, to... chain wheel, n
...heartbeat, nephew...warm ring, four...worm,
(Capital)... Induction motor, 31... Planetary gear, 32... Guide plate, blade... Molded cone, 34...
・Stomata, 35... Central hole, 36... Tube axis, 37,
38...Bevel gear, 39...Rotating shaft, a, 41...
Positive gear, 42...pressure cone, invitation...cam, required...
・Arm material, 45...Focus, 46...Vacuum intake pipe, 47
...compressed air pipe, 48.49...positive gear, father...
Rotating shaft, 51...Circular cutter, 52...Discharge duct, jumper...Socket surface, Nu...vacuum pump, Cap...Air compressor, Mouse...Solenoid valve, 57...・Phototube detector, Kuo...Mark, 59...Detector, ω...Hot melt fusion machine, 61...Heated hose, Iso...Automatic gun,
Mortar: Hot melt adhesive. Good morning

Claims (1)

[Claims] A roll of paper is cut to a certain length to form a rectangular paper, which is then wound into a cone, with the outer edge of the cone wound around the central axis of the cone. In order to form a paper cone by cutting in orthogonal directions and finishing the cut into a perfect circle, molten resin is added to the required portion of the paper sheet before cutting, and the sprayed resin is heated and melted after cutting. A method for forming a paper cone, which is characterized in that the edges of the paper sheets are polymerized and bonded together under pressure, and that the forming speed can be increased and the forming can be done unmanned.