KR20080037919A - Finishing system of plastic corrugatedcardboard - Google Patents

Abstract

An apparatus for finishing a plastic corrugated cardboard is provided to cut the plastic corrugated cardboard in a predetermined shape with progressing cutting, heating, and cooling processes of the plastic corrugated cardboard. An apparatus for finishing a plastic corrugated cardboard includes a pair of cutting units(100), a pair of heating units(200), a pair of cooling units(300), a control unit(400), a pull-in roller(500), a pull-out roller(600), and a fixing unit(700). The cutting units cut the side ends of the plastic corrugated cardboard. The heating units heat the side ends of the cut plastic corrugated cardboard. The cooling units have a cooling space unit to fix the corrugated shape of the side ends of the fused plastic corrugated cardboard. The control unit controls the front and rear width between the cutting units, the heating units, and the cooling unit. The pull-in roller is installed in front of the cutting units. The pull-out roller is installed rear of the cooling unit. The fixing unit is installed between the pull-in roller and the pull-out roller and has an elastic member(720) to press a fixing plate(710) and a supporting frame(730) in a shape of a beam to support the elastic member.

Description

Finishing system of plastic corrugated cardboard

1 is a perspective view of the finishing device of the present invention plastic cardboard,

2A is a side view of the cutout,

2b is a side view of the heating unit,

2c is a side view of the cooling unit,

3 is a perspective view of the cut portion, the heating portion, the cooling portion,

Figure 4 is a schematic perspective view showing a fixing process of the finishing device of the present invention plastic cardboard,

5 is a perspective view showing a distance adjustment state of the control unit,

Figure 6a is a cross-sectional view showing another embodiment of the cooling unit,

6B is a schematic perspective view showing another embodiment of the cooling unit.

<Description of the symbols for the main parts of the drawings>

10 plastic cardboard 11: buffer hole

12: rib 20: finish

100: cutting unit 110: cutting unit frame

111: cutting space portion 120: cutter

200: heating unit 210: heating unit frame

211: heating space 220: heating wire

230: heater 300,300 ': cooling unit

310 ,: cooling space 320: rotating part

330: central axis 400: control unit

410: adjusting screw 420: guide

500: drawing roller 510: drawing screw

520: upper draw roller 530: lower draw roller

600: drawing out roller 610: drawing out screw

620: upper draw roller 630: lower draw roller

700: fixing part 710: fixing plate

720: elastic member 730: support frame

The present invention is to finish the cut surface of a predetermined plastic corrugated cardboard, and more particularly, in order to prevent foreign matter from entering the buffer hole formed in the cut surface of the plastic corrugated cardboard, the rib of the cut surface is cut in a direction perpendicular to the rib and After the heat-sealing to melt, and relates to a plastic corrugated cardboard finishing device for forming the molten side end smoothly.

Plastic corrugated board is a hollow card board made by extruding polypropylene resin, and it is light and strong. It is excellent in soundproofing, heat insulation, cushioning effect, and processability. Applications include packaging agents and shock absorbers.

Plastic corrugated cardboard is generally composed of two layers of upper and lower boards to improve durability, and a plurality of spaces, that is, a plurality of buffer holes are formed inside to save material and weight of the plastic corrugated cardboard.

In other words, the upper plate member and the lower plate member having a predetermined thickness are stacked, and a plurality of ribs are formed between the upper plate member and the lower plate member, so that a buffer hole is formed between the ribs and the ribs.

Since the buffer hole is open at the edge of the plastic corrugated board, foreign matter such as dust may be inserted into the plastic corrugated cardboard to break the plastic corrugated cardboard. In the case of using plastic corrugated cardboard for transporting products, such as stacking products by stacking products, foreign substances in the cushioning holes of the plastic corrugated cardboard are released from the cushioning holes due to impact or other causes. It buried in the lower part of the product acted as a factor that lowers the merchandise of the produced product.

In addition, rain water enters between the buffer holes of the plastic corrugated cardboard during rainy weather, causing corrosion of the plastic corrugated cardboard, and shortening the surface of the plastic corrugated cardboard.

In order to solve the above problems, conventionally cut the plastic corrugated cardboard in a desired size and shape, using a cutter to the predetermined depth inward from the edge of the cut plastic corrugated cardboard so as to minimize the pressure pressure of the mold The ribs are cut to form a cutting part, and the plastic corrugated paper is positioned between the upper and lower molds so that the edge thereof corresponds to the end of the fusion surface of the mold, and then heated and pressurized with the heated upper and lower molds. A method of forming a finish at the edge of plastic corrugated cardboard by removing the lower mold has been proposed.

However, the conventional method as described above comprises the steps of cutting the plastic cardboard to the desired size and shape, cutting the ribs to a predetermined depth inward from the end of the plastic cardboard, and forming a finish on the edge of the plastic cardboard It was difficult to finish the entire surface of the plastic corrugated cardboard, had to be cut to fit the separate size, which has the disadvantage that the manufacturing process is cumbersome, takes a long time and increases the manufacturing cost.

The present invention has been made in order to solve the above problems, by cutting, heating, cooling the plastic corrugated sheet, by cutting the plastic corrugated sheet into a predetermined shape and at the same time bonding the edges to form a finish, It is an object of the present invention to provide a plastic corrugated cardboard finishing device to close and smoothly close the buffer hole of the cut surface regardless of the length, size, or thickness of the plastic corrugated cardboard.

Plastic corrugated finishing device according to the present invention for achieving the above object is composed of a plurality of ribs formed between the upper and lower plate and the upper plate and the lower plate, the buffer hole formed between the rib and the rib, In the plastic corrugated cardboard finishing device to join the edge by heat fusion so that the buffer hole is not exposed to the outside,

It is composed of a cutting section frame having a cutting space portion of the concave shape of the inside and a sharp cutter fixed to the cutting space of the cutting frame frame to cut the side end portion of the plastic corrugated cardboard, the cutting space is provided to face each other Cutting part;

The side of the plastic corrugated board cut by a heating part frame having a heating space part of the concave shape inside, and a heating wire which is provided inside the heating space part of the heating part frame and a heating element which supplies heat to the heating wire. A pair of heating parts which melt end portions and are provided to face the heating space parts;

A pair of cooling parts provided with a cooling space part of a concave shape inside to hold a solidification form of the side end portion of the molten plastic corrugated cardboard and facing the cooling space part;

An adjusting unit connected to the lower end of the cutting unit, the heating unit, and the cooling unit, and having an adjusting screw capable of adjusting the front and rear sides by rotating the screw to adjust the front and rear widths between the cutting unit, the heating unit, and the cooling unit by rotating the adjusting screw;

It is provided at the front of the cutting part, and having an inlet screw that can be adjusted up and down by the rotation of the screw on the upper end, an upper inlet roller that is easy to adjust up and down and a lower motor that is provided with a rotary motor at the lower end to rotate with the rotational force of the rotary motor. An inlet roller configured to transfer plastic corrugated cardboard and to be cut;

It is provided at the rear of the cooling unit, and has a pull-out screw that can be adjusted up and down by the rotation of the screw at the top of the upper draw-out roller easy to adjust the up and down and the lower drawer roller to rotate by the rotational force of the rotary motor by having a rotary motor at the bottom A drawer roller configured to take out the plastic corrugated cardboard of the cooling unit;

It is provided between the drawing roller and the drawing roller, and provided with a fixing plate and an elastic body provided in a rectangular shape to prevent bending of the plastic corrugated cardboard to support the elastic member and the elastic member to press the fixing plate by the buffering action of the elastic body. It is a configuration consisting of; a fixed portion consisting of a beam-shaped support frame.

Hereinafter, the technical configuration of the present invention according to the accompanying drawings in detail.

Figure 1 is a perspective view of the finishing device of the plastic cardboard of the present invention, Figure 2a is a side view of the cut portion, Figure 2b is a side view of the heating portion, Figure 2c is a side view of the cooling portion, Figure 3 is a perspective view of the cut portion, the heating portion, the cooling portion. .

In addition, Figure 4 is a schematic perspective view showing the fixing process of the finishing device of the plastic cardboard of the present invention, Figure 5 is a perspective view showing the distance adjustment state of the control unit, Figure 6a is a cross-sectional view showing another embodiment of the cooling unit, Figure 6b is It is a schematic perspective view showing another embodiment of the cooling unit.

As shown in FIG. 1, the present invention includes a plurality of ribs 12 formed between upper and lower plates and the upper and lower plates, and a buffer hole 11 formed between the ribs 12 and the ribs 12. In the plastic cardboard (10) made of a, provided with a finishing portion 20 is cut to the ribs 12 of the edge so that the buffer hole 11 is not exposed to the outside and bonded by heat fusion, but the plastic cardboard (10) Heat-sealed and solidify to a predetermined shape.

The plastic corrugated cardboard 10 is provided by stacking an upper plate and a lower plate as a base, and a plurality of ribs 12 exist between each of the ribs 12 and the ribs 12 between the upper plate and the lower plate. The buffer hole 11 which buffers the impact applied from the outside by providing a clearance and providing a clearance is provided.

The buffer hole 11, when cutting the plastic corrugated cardboard 10 in a predetermined form for the packaging or transportation of the product appears to the outside can be inserted foreign matters such as rain or dust.

Therefore, in order to prevent the buffer hole 11 from being opened to the outside, by closing the buffer hole 11 by heat-sealing the edge of the plastic corrugated cardboard to form a finishing portion 20 so that foreign matter such as rainwater or dust does not enter. And the rim is finished to look beautiful.

Referring to the plastic corrugated cardboard 10 finishing device of the present invention to form a closed portion 20 by closing the open buffer hole 11 of the plastic corrugated cardboard 10 as follows.

The cutting part 100 includes a cutting boot frame 110 having a cutting space 111 having a recessed shape inside and a sharp cutter 120 fixed to the cutting space 111 of the cutting part frame 110. It is a configuration for cutting the rib 12 opened in the side end portion of the plastic corrugated cardboard 10 to be inserted in the vertical direction.

First, a large cardboard-shaped plastic corrugated cardboard 10 that is not cut into a predetermined shape while the buffer hole 11 is exposed to the outside is prepared so that the rib 12 is positioned to be fixed to the center of the cutter 120.

The plastic corrugated cardboard may be positioned on the cutter 120 by using a shelf or provided with a separate fixing device.

The cutter 120 is a sharp processing of the mold to cut the rib 12 of the plastic material, the cutter 120 is to be cut to the center of the rib 12 in contact with the sharp processing.

The heating part 200 includes a heating part frame 210 having a heating space part 211 having a recessed inside, and a heating wire 220 provided in the heating space part 211 of the heating part frame 210. It is composed of a heat generator 230 for supplying heat to the heating wire 220 is a configuration for melting the side end portion of the cut plastic cardboard 10 as the heat of the heat generator (230).

The heating space portion 211 of the heating unit frame 210 is provided with a heating wire 220 connected to the heater 230, the heating wire 220 is a side end portion of the plastic cardboard 10 of the plastic cardboard (10) The rib 12 cut from the cutting part 100 is heated by melting at a melting temperature or more, and at the same time, the upper plate, the lower plate, and the rib 12 of the plastic corrugated cardboard 10 are joined.

At this time, the side end of the plastic corrugated cardboard 10 is heat-sealed for 5 to 10 seconds at a temperature of 130 ~ 150 ℃ by the heating wire 220, the heating wire 220 is nichrome wire, silicon layer, copper braided layer and In the heating wire 220 sequentially composed of a synthetic rubber layer as the final coating layer, various types of heating wires 220 are known, such as heating wires 220 having an asbestos braided layer interposed between the nichrome wire and the silicon layer. Of course it can.

When the thermal fusion temperature is less than 130 ° C, not only the side end portion of the plastic corrugated cardboard 10 does not melt and takes a long time and is not well formed. In addition, due to the pressure being pressed, the shape of the plastic corrugated cardboard 10 becomes poor and eventually causes a problem of crushing.

In addition, when the thermal fusion temperature is 150 ℃ or more, the upper and lower plates of the plastic corrugated cardboard 10 melts quickly, but melts completely, so that the model does not come out.

When the heat fusion time is less than 5 seconds, the molding holes are not blocked because the buffer hole 11 is not blocked, if the plastic cardboard 10 is completely melted 10 or more seconds, the model does not come out.

Therefore, in the finishing apparatus of the plastic corrugated cardboard of the present invention, it is preferable to heat-bond by adjusting the heat to 130 to 150 ° C. for 5 to 10 seconds at a side end portion of the plastic corrugated cardboard in thermal properties.

 On the other hand, when adjusting the pressure and temperature, if the pressure is increased and the temperature is lowered, the plastic corrugated cardboard 10 is not melted and is damaged. The damaged part turns white and becomes a defective product in appearance, and when the pressure becomes higher in this state, the side end of the plastic cardboard 10 is not joined.

Heater 230 may be provided in a variety of forms that can generate heat using electricity, it is also preferably configured as a heat generator 230 excellent in efficiency, and separately provided with a timer or a temperature controller time of the above-described conditions It is desirable to maintain the over temperature properly.

Therefore, in the finishing apparatus of the plastic corrugated cardboard of the present invention, it is preferable to control the temperature and time in such a manner that the time is shortened when the temperature is increased while the pressure is kept constant, and the time is increased when the temperature is lowered.

The cooling unit 300 is configured to hold the shape of the side end portion of the molten corrugated cardboard having a cooling space portion 310 of the shape recessed inside.

After the heat fusion, the fused plastic corrugated cardboard 10 is cooled to the shape of the cooling space 310, the shape is trimmed to be aesthetically beautiful in a certain shape and maintained in a constant shape.

The cooling unit 300 may not only be provided with a separate cooling device, but also may be slowly cooled in a natural state, and configured to hold a shape of an edge when the non-solidified finish portion 20 is in a molten state. As the finish portion 20 passes through the cooling space portion 310 provided in the cooling portion 300, the shape of the finish portion 20 is fixed to the recessed shape of the cooling space portion 310.

The adjusting unit 400 is connected to the lower end of the cutting unit 100, the heating unit 200, the cooling unit 300, and includes an adjusting screw 410 that can be adjusted back and forth by the rotation of the screw. It is a configuration for adjusting the front and rear widths between the cutting unit 100, the heating unit 200, the cooling unit 300 by driving.

Since the plastic corrugated cardboard 10 may be cut or produced in various lengths, the cutting part 100, the heating part 200, and the cooling part 300 may be moved back and forth to fit the length of the plastic corrugated cardboard 10. Plastic corrugated cardboard 10 should be able to form a finish 20.

The adjusting screw 410 is provided with a handle to adjust the front and rear distance of each of the cutting unit 100, the heating unit 200, the cooling unit 300 by the rotation of the handle, and is equipped with a separate position sensor automatically Of course, the position can be made to be adjusted.

When the adjusting screw 410 is rotated, the cutting part 100, the heating part 200, and the cooling part 300 provided at one side are fixed, and the cutting part 100, the heating part 200, and the cooling part provided at the other side are fixed. The 300 is moved back and forth and the distance between the cutting unit 100, the heating unit 200, the cooling unit 300 on both sides is adjusted.

In addition, a guide is formed at the lower end of the adjusting part 400 so that the cutting part 100, the heating part 200, and the cooling part 300 can be moved in a straight line.

The inlet roller 500 is provided at the front of the cutting unit 100, and has an inlet screw 510 at the upper end, and an upper inlet roller 520 that is easy to adjust up and down and a lower inlet roller 530 driven by a rotating motor at the bottom. ) To be supplied to the cutter 120 of the cutting part 100 from the outside by the plastic cardboard 10 by the rotation of the roller.

The inlet roller 500 transfers the plastic corrugated cardboard 10 at a constant speed while rotating by engaging the upper inlet roller 520 and the lower inlet roller 530 at the top.

At this time, the upper inlet roller 520 may be installed by the inlet screw 510 at the top to adjust the interval between the upper inlet roller 520 and the lower inlet roller 530 according to the thickness of the plastic cardboard (10).

When the thickness of the plastic corrugated cardboard 10 is thick, the upper inlet roller 520 is released to widen the gap with the lower inlet roller 530, and when the thickness of the plastic corrugated cardboard 10 is thin, the upper inlet roller 520 is opened. It is preferable to tighten and narrow the space | interval with the lower drawing roller 530.

In addition, by having a sensor that can automatically measure the thickness of the plastic corrugated cardboard (10) it is possible to adjust the distance between the upper inlet roller 520 and the lower inlet roller 530 by the drive of the prime mover.

The take-out roller 600 is provided at the rear of the cooling unit 300, and has a take-out screw 610 at the upper end and a lower take-out rotated with an upper take-out roller 620 and a rotary motor at the bottom for easy up and down adjustment. It is composed of a roller 630 to take out the plastic corrugated cardboard 10 of the cooling unit 300 by the rotation of the roller.

The take-out roller 600 draws the plastic corrugated cardboard 10 at a constant speed while rotating by engaging the upper draw roller 620 at the top and the lower draw roller 630 at the bottom.

At this time, the upper draw roller 620 may be installed to the extraction screw 610 at the top to adjust the interval between the upper draw roller 620 and the lower draw roller 630 according to the thickness of the plastic cardboard (10).

When the thickness of the plastic corrugated cardboard 10 is thick, the upper draw roller 620 is released to widen the gap with the lower draw roller 630, and when the thickness of the plastic corrugated cardboard 10 is thin, the upper draw roller 620 is opened. It is preferable to narrow the gap with the lower draw-out roller 630 by tightening.

In addition, by having a sensor that can automatically measure the thickness of the plastic corrugated cardboard (10) it is possible to adjust the distance between the upper draw roller 620 and the lower draw roller 630 by the drive of the prime mover.

The fixing part 700 is provided between the drawing roller 500 and the drawing roller 600, and is provided with a rectangular fixing plate 710 and an elastic body to prevent bending of the plastic corrugated cardboard 10 to cushion the elastic body. It is composed of an elastic member 720 for fixing the fixed plate 710 by the action and a support frame 730 provided to support the elastic member 720.

The fixed plate 710 may be formed of various materials having suitable strength, such as metal, wood, and synthetic resin, and may be formed of plastic corrugated cardboard for forming and transporting the finishing portion 20 in the space between the inlet roller 500 and the inlet and out roller. 10 is configured to prevent bending or lifting of the central portion, and has an elastic member 720 capable of pressing the fixing plate 710 with an elastic body such as a spring on the top, and the elastic member 720 has a support frame ( 730 is fixed to the configuration.

In addition, the support frame 730 is fixed to the inlet roller 500 or the inlet and out roller or an external fixture.

In another aspect, the cooling unit 300 is a rotating part 320 formed of a hollow rotating body to have a cooling space 310 of a shape recessed in a semicircle shape on the side, and the rotating part 320. It is provided in the hollow of the rotating part 320 so as to be idling, and is composed of a central axis 330 having a cross-section of the 'I' shape.

The cooling unit 300 'is to enable a more smooth and firm shape of the finish portion 20 of the plastic corrugated cardboard 10 melted in the heating unit 200, the rotation of the cooling unit 300' and By the press-fitting action, the finish portion 20 of the plastic corrugated cardboard 10 may be formed more smoothly and firmly.

The cooling unit 300 ′ may be configured to be idle by itself, and the shape of the finish part 20 is crushed by contacting and molding the finish part 20 of the plastic cardboard 10 at the same time as the idling. Do not lose or finish properly.

In addition, the size of the cooling unit 300 'is provided in various ways, it is preferable to use the cooling unit 300' to match the thickness of the plastic corrugated cardboard (10).

The closing part 20 is formed at the side end of the plastic corrugated cardboard 10 by the finishing device of the plastic corrugated cardboard having the structure as described above, and the buffer hole 11 for buffering the impact applied during the storage or transportation of the product is provided. It does not open to the outside.

Therefore, foreign matters such as rainwater and dust are not inserted into the plastic corrugated cardboard 10, thereby preventing contamination of the stored product and enhancing the product's marketability by making it beautiful in appearance.

As described above with respect to the finishing device of the plastic corrugated cardboard of the present invention, those skilled in the art various modifications or variations of the present invention without departing from the scope of the present invention described in the claims below Can be carried out.

Plastic corrugated finishing device according to the present invention by cutting, heating, cooling of the plastic corrugated cardboard, cutting the plastic cardboard into a predetermined shape and at the same time bonding the edges to form a finish, the length of the plastic corrugated cardboard It is a very useful invention that can close and smoothly close the buffer hole of the cut surface regardless of size and thickness.

Claims (2)

In the plastic corrugated cardboard 10 finishing device, Plastic corrugated cardboard which is composed of a cutting part frame 110 having a cutting space part 111 of a recessed shape inside and a sharp cutter 120 fixed to the cutting space part 111 of the cutting part frame 110. A pair of cutouts 100 which cut side edges of 10 and are provided such that the cut spaces 111 face each other; The heating part frame 210 having the heating space part 211 of the concave shape inside and the heating wire 220 is provided inside the heating space part 211 of the heating part frame 210 to transfer heat and the A pair of heaters 200 configured to be formed of a heat generator 230 for supplying heat to the heating wire 220 to melt side ends of the cut plastic cardboard 10 and face the heating space 211 to face each other; A pair of cooling units 300 provided with a cooling space 310 having a concave shape inside to grab the solidification form of the side end of the molten plastic corrugated cardboard 10 and face the cooling space 310 to face each other. ; It is provided with a control screw 410 connected to the lower end of the cutting unit 100, the heating unit 200, the cooling unit 300 and adjustable back and forth by the rotation of the screw to the cutting unit (rotational drive of the adjustment screw 410) 100), the adjusting unit 400 for controlling the front and rear width between the heating unit 200, the cooling unit 300; It is provided at the front of the cutting unit 100, the upper screw having a top and bottom adjustment roller 520 is easy to adjust the up and down by rotating the screw at the upper end and the rotation motor provided with a rotary motor at the bottom An inlet roller 500 configured to include a lower inlet roller 530 that rotates with a rotational force of a motor and to convey the plastic corrugated cardboard 10 to the cutting unit 100; It is provided at the rear of the cooling unit 300, and provided with a withdrawal screw 610 that can be adjusted up and down by the rotation of the screw on the upper side of the upper take-out roller 620 and easy to adjust the upper and lower by rotating the motor An extraction roller 600 composed of a lower drawing roller 630 which rotates with the rotational force of the rotating motor and withdrawing the plastic corrugated cardboard 10 of the cooling unit 300; It is provided between the drawing roller 500 and the drawing roller 600, and provided with a fixing plate 710 and an elastic body provided in a rectangular shape so as to prevent bending of the plastic corrugated cardboard 10, the fixing plate by the buffering action of the elastic body ( Finishing device of the plastic corrugated cardboard, characterized in that consisting of; fixing member 700 made of an elastic member 720 for pressing the 710 and a beam-shaped support frame 730 provided to support the elastic member 720 . According to claim 1, The cooling unit 300 is a rotating part 320 formed of a hollow rotating body to have a cooling space 310 of the shape recessed in a semi-circular shape on the side and the rotating part 320 It is provided in the hollow of the rotating part 320 so as to be idling), the finishing device of the plastic corrugated cardboard, characterized in that consisting of a central axis 330 having a cross-section of the 'I' shape.

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