KR20030047723A - Cutting apparatus of packing manufacture - Google Patents

Abstract

PURPOSE: A cutting apparatus of a packing bag is provided to cut the packing bag consecutively by adjusting only rotating speed of a cam according to a separating distance of a cutting portion of the packing bag, to cut a wide portion with small force and to form a perforated line according to a cutting depth. CONSTITUTION: A push frame(8) approaches a heat adhering portion of the packing bag with shaking up and down in a curve track by a cam holder(6) contacting a cam(5). The cam is eccentric by being connected to a ball joint portion(12). The heat adhering portion is cut by a cutting blade(10) fixed to a cutting frame(7) of the cam holder moving back and forth with the cam and spring(8b). A support frame(18) approaches the heat adhering portion of the packing gas with shaking up and down in the curve track by a cam holder(17) contacting a cam(16). The cam is eccentric by being connected to a ball joint portion(22). The cut heat adhering portion is pushed by a push rod(19) moved back and forth with the cam and a spring. Therein, a cutting operation is operated consecutively without stopping transportation of the packing bag. Changing cutting blades is unnecessary by cutting several packing bag as one unit.

Description

Cutting apparatus of packing manufacture

The present invention is to cut the heat-adhesive portion of each compartment portion of the packaging table (packing) in which a product such as a disposable spoon, disposable chopsticks and toothpicks in a packaging machine or a wrapping paper in a continuous packaging machine, or adjust the cutting depth of the saw blade-shaped cutting blade The present invention relates to a pavement cutting device for forming a cut line in a packaged product.

In general, the product packaging machine is a product wrapped between the rolled wrapping paper or plastic paper is put into the product between the vinyl or paper, and the product and the product is bonded to the vinyl or paper by thermal bonding between the product to be packaged.

Since the vinyl or paper that wraps the product is supplied from the roll and packed continuously, the heat seal between the product and the product must be cut to separate the packaging. Most product packaging machines are equipped with a cutting device for cutting packaging vinyl or wrapping paper.

In the conventional cutting device, a plurality of cutting blades are formed radially on the outer circumferential surface of the cylinder, and when the cylinder is rotated, the packaging table is individually cut by the cutting blade. However, according to the speed at which the packaging vinyl or wrapping paper passes continuously and the rotational speed of the cylinder, the heat-bonding part between the product and the product must be cut by the cutting blade so that the cutting planted in the cylinder whenever the width between the product and the product increases or decreases There was a hassle such as having to adjust the position of the blades.

And there is a device driven as the cutting blade is cut with scissors as the cutting edge is approached from both sides of the wrapping vinyl or wrapping paper. However, since this cuts only the forward and backward movements of the cutting blade at a certain position, the productivity has decreased because the packaging vinyl or the wrapping paper should be stopped at the moment of cutting.

The present invention has been developed in order to solve the problems of the prior art, the object of the present invention is the curved path of the cutting portion by the cam mechanism, the rocking motion and the forward and backward movement of the cutting blade and the support portion by the cam mechanism corresponding thereto Simplify the cutting operation by adjusting the rotational speed of the cam according to the separation distance of the cutting part of the pavement by cutting the pavement by the up and down movement of the curve and moving the pavement by the forward and backward movement of the push rod. And

The blow nozzle is formed on the upper part of the cutting part and the supporting part so that the cutting part can pass down between the cutting part and the supporting part by the air blowing in the lower direction, and then descend to the vertical direction smoothly without deviating from the position. In addition, the cutting blade is in the form of a sawtooth to cut a wide cutting portion with a small force and to provide a pavement cutting device that can form a cut line in the pavement according to the cutting depth.

1 is a perspective view of the present invention cutting device

Figure 2a, b, c, d is a cross-sectional view of the operating state of the cutting device of the present invention

Figure 3 is a cross-sectional view of the operating state of the present invention.

<Code Description of Main Parts of Drawing>

1: Packing Table 1a: Heat Adhesive Part

2: cutting part 3: supporting part

4: Camshaft 5: Cam

6: cam tray 7: cutting frame

8: pusher 8a: pusher

8b: spring 9: buffer

10: cutting edge 11: rod

12: ball joint portion 13: slider

14 Bracket 15 Camshaft

16: cam 17: cam receiving

18: support frame 19: push rod

19a: connecting rod 19b: spring

19c: Roller 20,20a: Blowing nozzle

20b: Nozzle Cam 20c: Limit Switch

21: rod 22: ball joint portion

23: slider 24: bracket

In order to achieve the above object, the present invention provides a package cutting device for cutting the packaging stand individually or several in one packaging unit when the product is continuously wrapped down by the upper, lower heat adhesive portion, Curved trajectory by a cutting section having a pressing frame contacting the heat-adhesive part of the pavement and a cutting blade for cutting the heat-adhesive part during forward and backward movements while swinging up and down with a curved path by the cam eccentric in the direction, and the cam eccentrically in one direction It consists of a support having a support frame to approach the thermal bonding portion while moving up and down, and the cutting section and the support along the downward direction of the packaging is configured to cut the flow of the packaging by cutting the packaging while moving forward and backward.

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

1 is a perspective view of the cutting device of the present invention, Figure 2a, b, c, d is a cross-sectional view of the operating state of the cutting device of the present invention. The cutting device of the present invention is a cutting portion (2) and the supporting portion (3) for cutting while lowering together while holding the heat-sealed portion (1a) of the packaging (1) from both sides while the product is packaged down by packaging vinyl or wrapping paper Is provided. The cutting part (2) and the supporting part draw the path of the ellipse by the cam eccentrically to one side and repeat the approaching and away from each other. To make it possible.

The cutting part 2 and the support part 3 are provided with the camshaft 4 and 15 which are mutually rotated in a different direction by meshing with a gear, and are provided in the side of the packing stand 1 side by side. On both ends of each camshaft (4) (15), cams (5) and (16) eccentrically provided on one side are provided, and cam trays (6) and (17) surrounding each of the cams (5) and (16), respectively. Each cam support 6 and 17 is rod 11 and 21 connected to the ball joints 12 and 22 to the sliders 13 and 23 which are inserted into the brackets 14 and 24 which are part of the main body. Has When each cam 5, 16 is at the top and bottom dead center, the rods 11, 21 and the sliders 13, 23 are bent at the corresponding ball joints 12, 22 and each cam 5 ( When 16) is eccentrically to the left and right, the sliders 13 and 23 are reciprocated in the brackets 14 and 24, and the cutting part 2 and the support part 3 are close to each other and are repeated. .

The cutting part 2 is provided with a cutting frame 7 for connecting the cam receiver 6 on both sides of the cam shaft 4, and the cutting blade 10 is fastened and fixed to the upper surface of the cutting frame 7 by a plurality of bolts. A pressing mold 8 is provided at the front of the cutting mold 7, and the pressing mold 8 is connected to the cam receiver 6 through upper and lower push rods 8a and springs 8b. And the pressing frame (8) is provided with a buffer (9) for pressing the packaging 1 intact.

The support part 3 is provided with a support frame 18 for connecting the cam support 17 on both sides of the camshaft 15. The supporting frame 18 has a passage in which the cutting edge 10 enters the center and is provided with a pusher 19 in the passage. The rod 19 serves to prevent the rod from being pushed out of the rod that is pushed into the passage during the cutting of the package 1 by the cutting blade 10 and the rod 19 is opposite to the cutting blade 10. Are moved.

3 is an operation state diagram of the supporting portion, the push rod 19 is provided with a connecting rod 19a extending toward the camshaft 15, a roller 19c is provided at the end of the connecting rod 19a, and a spring is provided on the outer circumferential surface of the connecting rod 19a. 19b is provided so that the pusher 19 is always in the retracted state. Thus, the roller 19c contacts the camshaft 15 when the support part 3 moves away from the cutting part 2 so as to contact the spring 19c. Compresses and advances the push rod 19 serves to push out a part of the packaging (1) sandwiched in the support frame (18).

The upper part of the support frame 18 and the pressing frame 8 is provided with a blowing nozzle 20 which blows air toward the packing stand 1 so that the packing stand is straightened without being twisted. The blowing nozzle 20 is formed in a long slit shape parallel to the camshafts 4 and 15 by the width of the packing stand 1 and allows air to be uniformly blown on the packing stand. In addition, nozzle cams 20b are formed on one side of each of the camshafts 4 and 15, and the nozzle cams 20b are provided with limit switches 20c for opening and closing valves for supplying air toward the blowing nozzles 20, respectively. do. Accordingly, as shown in FIGS. 2B and 2C, the cutting unit 2 and the supporting unit 3 are close to the packing table, and the limit switch 20c is pressed by the rotation of the nozzle cam 20b while cutting the product, thereby opening the valve. Air is supplied from the nozzles 20 and 20a to straighten the packaging.

The present invention configured as described above operates as a four stroke like an internal combustion engine of a vehicle.

First, FIG. 2A shows a state in which the cutout part 2 and the support part 3 are as far apart as possible. In the supporting frame 18, the push rod 19 is advanced toward the packaging 1 and the pressing frame 8 is as far away from the cutting frame 7 as possible. Since the roller 19c connected by the rod 19 and the connecting rod 19a contacts the camshaft 15, the rod 19 is advanced toward the packing stand, and the pressing frame 8 and the cutting frame 7 are springs ( 8b) is separated from each other.

2B is a state in which the cams 5 and 16 have reached a top dead center by the 90 degree rotation of each camshaft 4 and 15, and FIG. 2C shows the cam (by 90 degrees rotation of each camshaft 4 and 15). 5) 16 are in close proximity to each other. When the supporting frame 18 and the pressing frame 8 are close to each other, the pushing rod 19 placed on the supporting frame 18 is pushed by the spring 19b to move away from the package 1 and the cutting blade 10 enters the place. When the cutting blade 10 enters the support frame 18, the thermal adhesive part 1a of the packing stand 1 is cut and the packing stand falls into pieces.

Push rod 19 is the roller 19c of the connecting rod (19a) is out of the camshaft 15, the spring 19b is restored, the push rod is pushed away from the packing table, and the pressing frame (8) is the buffer opening (9) Since the spring 8b continues to be compressed in contact with the support frame 18, the cutting frame 7 moves toward the support frame 18 so that the cutting blade 10 enters the support frame 18 to cut the package.

The cutting blade 10 has a tooth-shaped tooth is formed on the blade, the cutting surface of the cut pavement is a sawtooth shape can be cut with a small force when cutting a wide cutting portion. Therefore, if you grasp the cut part and pull it, the bone of the tooth is torn and the pavement is easily torn off. The cutting blade 10 may completely cut the heat-adhesive portion 1a of the packing table according to the cutting depth thereof so that the packing stand may drop individually or only the tooth marks remain so that the packing stand may be continuously connected. When the tooth marks are made in the heat-adhesive portion (1a) of the pavement stand, this can serve as a perforation line, so that the pavement stand can be separated individually.

In FIG. 2D, each cam 5, 16 is placed at the bottom dead center by 90 degrees rotation of each camshaft 4, 15. At this time, the cutting frame 7 and the cutting blade 10 and the support frame 18 are moved in a direction away from each other, and each push rod 19 and the pressing frame 8 is restored to its original state by the springs 19b and 8b. In step 2d, the nozzle cam 20b does not press the limit switch 20c so that air is not blown from each blow nozzle 20 or 20a.

In the present invention, the above four strokes occur continuously, which is described as a four step division for convenience. As a result, the supporting part 3 and the cutting part 2 can cut the product continuously by cutting the heat-adhesive part 1a of the packing stand while repeating the process of approaching and away from each other along the direction in which the packing stand 1 descends. .

As described above, according to the present invention, while the product is packed in the packaged vinyl, the presser and the base of the cutting unit and the supporting unit move together in the direction descending from both sides of the packaged vinyl to hold and cut the packaged vinyl, thereby transferring the packing table. There is no need to stop it.

The cutting edge of the cutting unit cuts the heat-sealed portion of the packaging vinyl, and the packaging stand is cut individually, and the productivity is improved. Also, by adjusting the movement speed of the cutting unit and the supporting base, several packaging stands can be divided into one unit. There is no need to replace the cutting blade, and the cutting edge of the cutting blade can make a cutting line in the pavement.

Claims (2)

In the packaging cutting device for cutting the thermal bonding portion (1a) of the packaging table (1) in which the product is continuously packaged by the upper and lower thermal bonding portion (1a), Pressing frame 8 approaching the thermal bonding portion 1a of the package 1 while swinging up and down in a curved track by the cam support 6 contacting the eccentric cam 5 connected to the ball joint part 12. ) And the heat bonding portion 1a by the cutting blade 10 fixed to the cutting frame 7 of the cam support 6 forward and backward by the cam 5 and the spring 8b. The support frame 18 and the cam 16 which are in contact with the heat-bonding part 1a while swinging up and down in a curved path by the cam support 17 which is in contact with the eccentric cam 16 connected to the ball joint part 22, It is configured to push the portion of the heat adhesive portion (1a) cut by the pusher 19 to move forward and backward by the spring (19b) so that the cutting operation can be continued without interrupting the transport of the packaging (1) Packaging cutting machine made. According to claim 1, wherein the blowing nozzles (20a, 20) are formed at the upper end of the pressing frame (8) and the supporting frame (18) by injecting air toward the packaging table (1) by the smooth vertical transfer of the packaging table (1) Packaging device cutting device characterized in that configured to be cut.