KR970006452B1 - Process for the preparation of fiber drum - Google Patents

Abstract

After insertion of the opening of the main body into the gap and having the oil pneumatic cylinder piston axis reversely move, the displacement member(64) declines and the pressure part(71) advances. By the descending piston axis(63), the displacement member(64) declines, and the cam curve line of slide cam is coming in contact with the rollers of the lock tables(66a,66b,66c,66d), leaving the lock plates(66a,66b,66c,66d) to be moved, sliding in every direction.

Description

Fiber manufacturing method and apparatus therefor

1 is a perspective view of a conventional fiber drum.

Figure 2 is an exploded perspective view of a fiber drum for the present invention.

Figure 3 is a cross-sectional view of the bonded state of the fiber drum of the present invention.

Figure 4 is a cross-sectional view of the assembled state of the fiber drum for the present invention.

5 is a manufacturing process diagram of the fiber drum according to the present invention.

6 is a front view of the bending portion of the adhesive portion of the fiber drum according to the present invention.

7 is a side view of the adhesive portion of the present invention.

8a, 8b are a rear exploded perspective view and an assembled rear view of the fastener of the adhesive portion according to the present invention.

9a and 9b are state diagrams in which the adhesive portion is bent by the fastener of the present invention.

10 is a side view of the pressing portion of the present invention.

11a, 11b, and 11c are operation and bonding state diagrams for the pressing portion of the present invention.

Figure 12 is a state diagram before operation of the diameter reducing portion of the present invention.

Article 13 is a longitudinal sectional view of FIG.

14 is a pressurized state cross-sectional view of the diameter reducing portion of the present invention.

15A, 15B, and 15C are modified state diagrams of the interview portion by the diameter reduction portion of the present invention.

* Explanation of symbols for main parts of the drawings

10: cover 20: reinforcement

30, 30 ', 60: body 40: bending member

50: support 70: pressure forming member

The present invention is a container having a safe structure using only a plastic bag without using a metal in the body having the inner volume forming the storage and packaging of the granular or powdered form and the fiber drum to be combined, peeled off and separated from the body. It relates to a manufacturing method and apparatus for molding the fiber and a fiber drum.

Generally known fiber drum is composed of a cylindrical body portion having a volume for holding powdered sand or particulate product, and a cover portion covering the inlet of the compartment so that the contents contained in the body do not leak.

A fiber drum having such a configuration is conventionally formed with a metal plate or frame having good mechanical properties in order to provide firmness to the outer surface of the bottom and top openings of the cylindrical body of the fiber drum, the top surface and the edge of the cover part. In order to firmly bond the metal and the fiber pants, the metal parts and the fiber parts were rolled on the contact parts to bond the materials with different mechanical properties.

In addition, the cover of the cover formed with a metal material to prevent the contents from leaking out was equipped with a clamp having a configuration in which the attachment and detachment is easy and the lock state is stabilized for easy attachment and detachment with the cylindrical body opening.

Since the conventional fiber drum is formed of a metal material and fiber pants, its own moldability is strong, but for example, the metal material formed on the upper and lower circumferences of the drum when dropped during transportation is crushed at the site of impact. However, the unaffected parts are not deformed, and the combined properties of the fiber-pants in the rolled state are torn due to lower mechanical properties than the metal material. In addition, in the conventional fiber drum, due to the use of a metal material, it is weak to moisture and salt in the air, so that the vulnerable areas of the surface are oxidized, and the contents are contaminated by oxides. The fiber drum is not recycled at all after it is used, which causes the waste of valuable resources. This is because the fiber drum is composed of a combination of metal and fiber pants. It was not easily done, which caused a lot of time and manpower to separate the material, causing the cost of production to rise.

Therefore, an object of the present invention is to solve this conventional problem by providing a fiber drum which is formed only of fiber pants.

It is another object of the present invention to provide an inventive method of manufacturing and forming a fiber drum formed only of fiber pants.

Another object of the present invention is to provide a manufacturing apparatus for molding a fiber drum consisting of only the above and fiber pants.

The present invention is to provide that the cover is not easily peeled off by the expansion and contraction configuration of the opening provided in the cylindrical body of the drum even if a separate lock configuration is not formed in the fiber drum formed only of the fiber pants.

In the fiber drum made of fiber pants only by the purpose of providing the above, the oxidation phenomenon seen in the metal material does not occur, and the cylindrical part and the upper and lower plate parts are formed with the same elongation of the elongation even when the impact is inadvertently dropped during transportation. As a result, it is possible to expect an effect such that the shock can be absorbed so that a tearing phenomenon does not occur as in a drum formed of metal and fiber pants.

The present invention will be described in detail with reference to the accompanying drawings.

In forming the fiber drum (3) formed of a cylindrical body portion (1) having a chamber (H) for forming a predetermined content to hold a predetermined content, and a cover portion (2) for opening and closing the opening of the compartment, The upper and lower ends 12 of the cylindrical body portion 1 having the chamber H and the cylindrical lid portion 10 each having the interview portions 11 and 11 'at a length covered by the outer periphery of the opening of the chamber. 13) an adhesive portion 15 (15 ') having an adhesive piece 14 (14') that is cut vertically in the same size and length of the upper and lower straits, and is folded vertically by bending the vertex portion of the notched portion. To form.

The upper and lower surfaces of the adhesive portion 15 bent vertically in the cylindrical body portion 1 and the cylindrical cover portion 10 are provided with a reinforcement portion 20 formed in a disc shape to form a plane and a bottom surface of the fiber drum 3. do. The reinforcement part 20 is composed of a reinforcement upper plate 21 and a reinforcement lower plate 22, which are positioned above and below the adhesive part 15 to achieve adhesion using an adhesive and pressure.

The cylindrical body portion 1 and the cylindrical cover portion 10 are formed in the outer diameter of the same diameter and formed on the lower end of the cylindrical cover portion 10 and the upper end of the cylindrical body portion 1 to form a surface contact, respectively Interview portions 11 and 11 'of the same length are formed.

In the configuration of the interview portions 11 and 11 ', the interview portions 11 and 11' formed on the cylindrical body portion 1 form a small outer diameter by retracting the outer diameter of the body. In any configuration, the recessed portions 1a, which can be stretched and contracted outside, are formed at predetermined intervals on the circumferential surface.

The fiber drum 3 having such a configuration bends the adhesive portions 15 and 15 'of the cylindrical body portion 1 and the cylindrical lid portion 10, and the adhesive pieces 14 and 14' are cut out therebetween. Due to the shape of the blemish, a state of being bent side by side in a circular manner without overlapping is achieved as in FIG.

A strong adhesive is applied to the upper and lower surfaces of the bonding portions 15 and 15 'to reinforce the lower plate 21, 22, 21' and 22 '.

By the adhesion of the upper and lower reinforcing plates 21 'and 22', the fiber drum 3 forms a predetermined content therein so that the contents to be stored can be stored, and the cylindrical body portion 1 into which the contents are inserted The cylindrical cover part 10 is covered by the opening of the c) to allow the cylindrical cover part 10 and the interview portions 11 and 11 'of the body part 1 to make surface contact with each other.

In the surface contact state, the interview portions 11 and 11 ′ of the cylindrical body portion 1 may be stretched in the direction of the outer diameter and the inner diameter in the openings that are bent to the thickness of the cylindrical cover portion formed to the same outer diameter as the outer diameter of the body portion. Since the groove 1a can be formed, the cylindrical cover part is contracted by the groove 1a when the contact portion makes a surface contact with the outer surface of the body part, so that the smooth coupling of the cylindrical cover part is achieved, and in the inserted state, it is concave. The surface contact force between them increases by transmitting the elasticity to which the groove is spread to the interview portion of the cylindrical cover portion.

By the improvement of the surface contact force, the cover retains the coupling force that is not separated by force until the cover 10 is forcibly peeled off from the cylindrical body portion 1 even without a separate locking member.

The coupling force of the cylindrical cylindrical cover portion and the cylindrical body portion has the advantage of smoothing the tape packaging of the fiber drum.

The fiber drum formed only with the fiber pants is the same as the properties of the material can absorb the impact even when the impact due to the drop, so that no part of the tearing phenomenon occurs, the oxidation phenomenon due to the properties of the fiber pants This does not occur and the phenomenon that the contents are contaminated by the oxide does not occur at all.

The fiber drum of the present invention constituting the above configuration will be manufactured in a predetermined desired state by the following manufacturing process.

Therefore, the manufacturing process of the fiber drum in detail as follows.

(Step 1)

A conventional fiber is rolled to a predetermined diameter, and a cutting process is performed in which a cylindrical drum body is formed and a length suitable for forming a body portion and a length suitable for forming a cylindrical lid portion are performed.

(2nd step)

A notching process is performed for notching the edges of one end of the cylindrical body portion and the cylindrical cover portion cut to a predetermined length with a 'V' shaped cutting member of a punching die at a predetermined interval. By performing this notching process, the adhesive parts 15 and 15 'formed with the adhesive pieces 14 and 14' inclined at both sides are formed at one edge of the cylindrical body part and the cover.

(3rd step)

By the notching process described above, adhesive portions 15 and 15 'are formed on the cylindrical body portion and the cylindrical lid portion, and the upper and lower surfaces of the adhesive pieces 14 and 14' of the adhesive portions 15 and 15 'are reinforced. The lower plates 21, 22, 21 'and 22' need to be bonded to each other, thereby performing a low bending process of vertically bending the adhesive portion formed at the edge.

In the above bending process, when the adhesive piece is temporarily bent, the surface of the bent portion may be torn. Therefore, it is preferable to bend the adhesive portion sequentially without bending the adhesive portion at once. In bending the adhesive part, the adhesive piece of the adhesive part has a small angle when the fiber drum is rotated by the driving member configured to move vertically with respect to the side of the adhesive part while firmly fixing the inside of the fiber drum. It is bent vertically by making a first bending and then bending at a large angle.

(4th step)

After the bending process is performed, the fiber drum performs a reinforcing part bonding process for forming a ceiling or a bottom positioned above and below the drum.

The reinforcing part bonding process is to perform a pressure bonding operation in the configuration having a pressing member to vertically raise and lower the upper portion of the supporting member, the reinforcing lower plate 21, 22, 21 '(22') on the upper surface of the supporting member. ), Put the adhesive piece bent vertically on the fiber drum, and then put the reinforcing top plate (21) (21 '). At this time, between the reinforcement, the lower plate 21, 22, 21 ', 22' is coated with an adhesive having the property of resisting moisture well and maintaining adhesiveness. After the pressure member is moved to the lower hole to the upper surface of the reinforcing top plate to be pressed. This compresses the stacked components.

The heat generated by the heat generating means built in the pressing member at the time of pressurization of the pressing member is transferred to the pressing surface together with the pressure.

1 to 4 tons of the pressing force of the pressing member is suitable, and the exothermic temperature is preferably in the range of 120 degrees to 170 degrees, and the pressurization time is preferably in the range of 20 seconds to 50 seconds.

(5th process)

The reinforcement part which consists of the upper and lower reinforcement boards 21, 21 ', 22, 22' is formed in the upper and lower sides of the cylindrical body part 1 and the cylindrical cover part 10 by said 4th process. Thereafter, the diameter reducing step of reducing the outer diameter of the opening end of the cylindrical body portion 1 to the inner diameter of the cylindrical cover portion is performed.

The diameter reducing step of the fifth step reduces the opening of the cylindrical body portion to the inner diameter of the cylindrical lid portion, in order to form a surface contact portion for joining the cylindrical lid portion to the cylindrical body portion.

An opening of the cylindrical body compartment is inserted between the support member provided in a cylindrical shape with the cylindrical member of the cylindrical member having the heat-producing member and the pressing member installed in a radial state and the pressing member pressed. The lock slider of the supporting member is moved to fix the opening inner diameter of the cylindrical body so that a predetermined gap is formed between the opening inner diameter and the supporting member.

Thereafter, the pressing member is horizontally slid to compress the lower end of the lock slider in a state in which the inner diameter of the cylindrical body is fixed, thereby compressing the opening on the circumferential surface of the support member.

Since the compressed state of the opening is made in the entire circumferential surface of the support member, the opening diameter of the tip is reduced, and at the same time, the recess is formed to concave at a predetermined interval of the reduced opening diameter.

The pressure of the pressure member used in the compression process is in the range of 1 to 4 tons, the temperature of heat formed by the heat generating means is suitable in the range of 120 to 170 degrees and the time for pressurizing is in the range of 10 to 30 seconds. desirable.

When the fourth process is sequentially performed in the first process, the fiber drum shown in FIG. 5 is manufactured.

Since the effect of the fiber drum is as described above, further description thereof will be omitted.

In order to perform each process as mentioned above, the structure of the apparatus demonstrated below is required.

Therefore, a suitable configuration for performing each process is as follows.

Since the inner diameter of the cylindrical body and the cylindrical cover is the same for bending the adhesive piece of the adhesive part, the bending diameter of the fiber bar drum can be achieved only by providing a structure that holds the inner diameter of the other to bend the adhesive piece of the fiber drum. The cylindrical support member 31 is formed in a size similar to the size of the, and the cylindrical support member 31 is fixed to the shaft of the drive member 32 installed on the rear of the body 30 to achieve rotation. On the front surface of the support member 31, a guide plate 35 is provided with an arc-shaped clamp 33 reciprocating in the direction of the circumferential surface, so as to overlap at the same position on the back surface of the clamp plate 33 and the clamp 33. The part where the pin 38 is elastically inserted and installed in the base 36 and 37, and the clamp 33 slides in the support plate, and the fixed plate 35 and the clamp 33 make surface contact. Between the surface contact interface, a slide cam 39 is moved forward and backward by a driving body such as a solenoid or pneumatic cylinder (not shown) so that the clamp 33 is fixed by the slide cam 39 driven by an electric signal. Moving at (35) to selectively achieve a diameter larger than the size of the inner diameter of the fiber drum and a diameter smaller than the size of the inner diameter.

In front of the fixing plate 35, a bending member 40 for bending the adhesive pieces 14, 14 'of the adhesive portion is fixed to the vertical bar 41 of the body 30.

One or more bending members 40 installed on the vertical bar 41 of the body 30 have a slider 44 having a piston shaft 42 of a hydraulic cylinder and a disk-shaped roller 43 in contact with an adhesive piece. It consists of connecting the piston shaft to the slider.

In the state in which the bending member 40 is installed on the vertical bar 41 of the body 30, the interval between the disc-shaped rollers 43 installed state is preferably in an acute angle range, and the fixing plate 35 of the support member 31 is provided. Spacing interval of each disk-shaped roller 43 at the front side is different depending on the bending degree of the adhesive piece.

The above configuration is such that the cam member 39 connected to the driving member (not shown) is inserted into the support member 31 by electrically inserting the inner diameter of the fiber drum drum of the cylindrical body portion 1 and the cylindrical cover portion 10 to the driving body (not shown). The movement of the clamp 33 is made by driving the displacement of the cam curve formed in itself, and the movement of the clamp slides along the guide base 36 to form a outer diameter larger than the inner diameter of the fiber drum, while the fiber drum is formed. The inner diameter of the press is achieved.

Rotating the shaft of the drive member 32 installed in the body 30 in the pressure-receiving state as described above also rotates the fiber drum together with the support.

When the cylinders S1 and S2 of the bending member are driven in a conventional manner while the fiber drum 3 is rotated, the slider 32a of the disk-shaped roller 32 having a large separation interval is first advanced, and then the separation is performed. The slider 32b of the disk-shaped roller 32 with a small gap advances, and the adhesive pieces 14, 14 'are bent by the disk-shaped roller 32a with a large gap, and then the disk-shaped roller with a small gap The adhesive pieces 14 and 14 'are bent in a horizontal state by the roller 32b.

When the adhesive pieces 14 and 14 'formed at the edges of the fiber drum 3 are bent horizontally, the power supply of each drive unit is controlled to stop.

The apparatus for performing the reinforcing part bonding process performed after the bending process is preferably formed in the following configuration.

A disk-shaped support member 51 is erected and fixed on the upper surface of the flat body 30 by the inner diameter of the fiber drum, and a press member 52 having a heating wire is provided on the upper portion of the support member 51 to support the body body 30 '. ) Connects the piston shaft 53 of the pneumatic cylinder (S3) installed on the upper portion of the support (50) vertically fixed to the pressing member (52). By the above configuration, the pressing member 52 makes a vertical rise and fall with respect to the supporting member 51 by the driving of the cylinder.

In the above configuration, since the support member 51 directly affects the workload, it may be required to install one or more support members 51 to improve the workload.

In the case where one or more supporting members 51 for fixing the fiber drum (3) are installed, there is no coincidence with only one of the pressure members (52) installed. Therefore, the supporting members (51) are guide rails on the upper surface of the body (30 '). Installation fixing on the slide plate (55) installed to move along the (54).

At this time, the movement range of the slide plate 55 is required to be formed at the same interval as the installation interval of the support member 51 and this interval is for easy matching with the pressing member.

The reinforcing part adhesive structure for the fiber drum made of such a structure is placed on the upper surface of the supporting member 51 with the reinforcing lower plates 21 'and 22' coated with the adhesive on the upper surface, and the fiber drum 3 being supported on the supporting member 51. ), So that the adhesive pieces 14, 14 'at the tip end up on the reinforcing lower pieces 21', 22 'and then to the top surface of the adhesive pieces 14, 14' of the fiber drum (3). The adhesive covers the other reinforcing top plates 21, 22 applied to the bottom.

As described above, when the state in which the reinforcing upper and lower plates 21, 22, 21 'and 22' are installed on the adhesive pieces 14 and 14 'of the fiber drum 3 is completed, turn on the power to The cylinder S3 is driven. By driving the cylinder, the piston shaft moves in the forward direction so that the pressing member 52 descends, and the heat generating member installed in the pressing member 52 generates heat by the electrical resistance to generate the pressure member 52. The surface reaches a predetermined temperature.

The pressing member 52 continuously descending is in contact with the natural reinforcing upper plate 21 (21 '), and the pressing member 52 applies a predetermined pressure and heat thereto.

Reinforcement upper and lower plates 21 'and 22' are firmly adhered to the upper and lower surfaces of the bent adhesive pieces of the fiber drum by the pressure and heat applied in the above process, thereby forming the upper and lower plates of the fiber drum.

As such, when the reinforcing upper and lower plates are pressed against the adhesive surface of the fiber drum, the piston shaft 53 of the cylinder is adjusted to move in the retreating direction so that the pressure member is raised and then the power is 'off' to be pressed in the state of stopping the driving of the cylinder. Lift the fiber drum out of the supporting member, move the slide plate 55 in one direction so that the fiber drum 3 installed in the next supporting member 51 is located directly below the pressing member 52, and then The reinforcement upper and lower plates 21, 21 ', 22 and 22' are continuously adhered to the bonding pieces 14 and 14 'of the fiber drum 3 by driving the piston shaft to lower. It can be.

The tip of the opening of the fiber drum (3) forming the cylindrical body of the fiber drum (3) to which the reinforcing upper and lower plates are bonded should form an outer diameter with the same diameter as the inner diameter of the cover, so the diameter of the opening should be reduced.

A suitable configuration for carrying out the diameter reduction process described above is as follows.

It is made of a diameter smaller than the inner diameter of the fiber drum (3), the circumferential surface is formed with a mold member 61 having a concave groove (62) formed in the longitudinal direction in order to give elasticity to the opening of the fiber drum drum to a predetermined height It is fixed to the upper surface of the (60), the lower end of the body 60 to reach directly below the through hole drilled in the center of the mold member 61 is provided with a hydraulic cylinder (not shown) to the piston shaft 63 of the cylinder The cross-section is formed in the shape of a rod-shaped and the displacement member 64 having a cam curve by varying the diameter of the slide lock plate provided on the upper surface of the mold member 61 in the cam curve of the displacement member Ensure the rollers are in elastic contact.

The slide lock plate member 66a (66b) is formed on the upper surface of the mold to form a disc shape in a flat combination of fan-shaped slide lock plate members 66a, 66b, 66c and 66d. 66c and 66d form an arcuate curve on the outer circumferential surface, and the roller 65 for contacting the cam curve of the displacement member 64 which is a slide cam is provided at the inner end.

The guide hole 67 is formed in a rectangular shape between the circular arc formed in the slide lock plate members 66a, 66b, 66c and 66d and guides the plate when sliding. Inserting the fastening element 68 together with the washer so that the thread formed on the front end of the fastening element is fixed to the upper surface of the mold member.

A spring is provided between the circumferential surfaces of the slide lock plates 66a, 66b, 66c and 66d and the rollers to retain elasticity when the slide lock plates 66a, 66b, 66c and 66d are driven. A hook groove 69 for hanging S is formed to hang the spring S in a ring shape so that the elasticity of the spring is provided to each slide lock plate 66a, 66b, 66c, 66d.

And, on the outer periphery of the mold member 61 is fixed to the upper surface of the body of the pressing molding member 70 consisting of a configuration that is in close contact with or separated from its outer peripheral surface in a radially installed toward the outer periphery of the mold member, The molding unit 70 is composed of a cylinder (S4) to form a hydraulic pressure, and a pressing plate 71 fixed to the front end of the piston shaft acting forward and backward by the drive of the cylinder, the pressing plate 71 is the height The temporary mold is formed at the same height as the protruding height, and the inside of the pressurizing member is a means for heating the opening end of the cylindrical body portion to form a configuration in which a heating wire is generated to generate heat according to the electrical resistance. A protrusion 72 is formed to form a recess in the opening of the body portion.

The diameter reducing portion forming the above configuration mainly processes only the opening of the cylindrical body portion. When the displacement member 64, which is a slide cam, is lifted by driving the pneumatic cylinder located at the lower middle of the mold, the locks 66a, 66b, 66c. (66d) is made to the state orrad toward the center of the mold by the spring (S) installed in the middle. At the same time, if the piston shaft is driven backward by driving the hydraulic pneumatic cylinder S4 installed in the outer peripheral surface of the mold, the pressing molding member 70 is in a state far from the outer surface of the mold.

Due to the above state, a gap is formed between the pressing piece and the mold, so that the opening of the cylindrical body portion is inserted into this gap.

After the cylindrical body opening is inserted into the gap, if the hydraulic cylinder piston shaft of the mold and the press molding part moves in the reverse direction, the displacement member 64 of the slide cam connected to the cylinder piston shaft of the mold is lowered and is pressurized. The pressing member 71 connected to the piston shaft of the mold is in a state of advancing.

As the piston shaft 63 descends, the displacement member 64 of the slide cam is also lowered, and the cam curve of the slide cam contacts the roller 65 of the lock base 66a, 66b, 66c, 66d. The lock plate 66a, 66b, 66c, 66d is slid in all directions by the shape of the cam curve, and the opening inner diameter of the fiber drum 3 is crimped | compressed.

In the above state, the lock plate members 66a, 66b, 66c and 66d of the mold contact the inner surface of the cylindrical body portion to form a state of pressing the inner circumference of the cylindrical body portion to fix the opening portion.

At this time, since the outer diameter of the mold member 61 is smaller than the inner diameter of the opening, a space is formed between the outer circumferential surface of the mold member 61 and the opening of the cylindrical body portion 1.

Since the height of the press-molding member in contact with the outer surface of the cylindrical body portion in the above configuration is the same height as the height of the protrusion of the mold member protruding from the upper surface of the body, the opening outer surface of the cylindrical body portion by the cylinder driving force of the press-molding member 70 Compression is made to the outer surface of the member.

Therefore, the diameter of the opening end of the cylindrical body 1 which forms a predetermined space with the outer circumferential surface of the die is pushed into the outer circumferential face of the die.

The crimped state in which the tip diameter of the opening is pushed into the outer periphery of the mold is simultaneously made in the entire outer periphery of the mold, so that the diameter of the opening end of the cylindrical body portion is reduced by the pressure difference of the pressing member.

The reduced diameter of the opening is the same size as the inner diameter of the interview chuck portion of the cylindrical lid portion.

In the process of reducing the diameter, the opening outer diameter of the cylindrical body portion is reduced to a small diameter, which is unreasonable in the structure of the cylinder. Therefore, the pressure in the circumferential surface of the end of the opening is applied to the circumference of the vertical state formed at the inner surface of the pressing member. The concave groove 62 formed on the outer surface of the mold member is pressed to achieve a state of being folded concave.

The opening diameter of the opening is bent by the pressing piece due to the fact that several of the opening ends are folded concave inwardly so that the diameter of the opening tip is reduced and the outer diameter in the reduced state is equal to the inner diameter of the lid. In the state that the outer diameter is formed and the diameter of the opening tip is reduced, the jaw is formed in the body of the opening and the chamber.

Due to the diameter reduction process of the opening end of the cylindrical body portion as described above, the cylindrical body portion is formed with one or more portions of different diameters in one drum, the end of the opening forms the cylindrical body portion in a state that the concave folded in several places. The cover formed with the outer diameter equal to the outer diameter of the chamber is covered by the opening and peeled off from the opening of the cylindrical body portion of the cylinder. It is possible to achieve stable packing work when packing the product because the cover is not easily peeled off from the cylindrical body part by the combination of the two. The cylindrical body part and the cover are made of paper of the same elongation without using any metal. Because it is made of fiber material, the advantage that oxidation does not occur at all And, also without being torn impact is applied, it is an advantage in that the impact is absorbed by the distortion.

The feature of the present invention is that the drum is formed only with fiber pants, so that it does not need to be separated after use, so that the product is completely recycled, thereby improving the value of the product as well as forming the cylindrical body part and the cover with fiber pants. The manufacturing technology of the fiber drum also has the advantage of being improved.

Claims (3)

Bending the horizontal side of the adhesive piece 14, 14 'by cutting one side of the drum made of fiber pants, adhering the reinforced upper and lower plates 21', 22 'made of fiber pants to the upper and lower surfaces of the adhesive piece 14' A cylindrical body which forms a bottom plate, and the other side is bent to the top of the opening to form an opening having a diameter smaller than the outer diameter of the drum, and the cylindrical body formed by the concave bent concave at regular intervals to form the elastic groove (1a) The reinforcing upper and lower plates 21 and 22 made of fiber pants are vertically bent by vertically bending the portion 1 and the adhesive piece 14 formed by cutting the one side edge of the drum having the inner diameter to the outer diameter of the opening at a predetermined interval. Bonding to form a surface, the other side is a fiber drum, characterized in that made of a cover portion 10 formed of an insertion hole formed in the opening diameter of the cylindrical body portion. Bonding part notching process to cut one side edge of drum made of long and short length made of fiber pants at regular intervals to form an adhesive piece: by rotating the drum and moving towards the center of the drum Bonding part bending process of bending the formed adhesive pieces in small and large angles sequentially to the center of the drum from the circumferential surface: a reinforcement image made of fiber pants at the bent adhesive pieces 14, 14 'of the fiber drum, Reinforcing part bonding process of placing the lower plate 21, 22, 21 'and 22' by thermally pressing the upper and lower surfaces by heat according to the pressure by the oil and pneumatic members and the electrical resistance inside the press piece: The opening of the cylindrical body is inserted into the space formed between the cylindrical mold 61 of the fiber drum and the pressing piece of the press-molding member 70 radially installed around the mold. The method of producing a fiber drum to the heat generated to have a reduced diameter oil, possible expansion groove to a driving of the air cylinder urges the diameter of the opening front end of the pressing member forming step of using a mold with electrical resistance in order. A support member 31 having a clamp plate for fixing the inner diameter of the drum made of fiber pants to the displacement of the cam curve to rotate by the driving force of the motor, and a support member in the front acute angle range of the fixing plate 35. Bending member 40 is installed on the vertical bar 41 to move forward and backward toward the axis of the disc having a disk-shaped roller for bending the adhesive piece of the drum drum at a large angle after bending the small angle: of the fiber drum (3) Support member 51 installed vertically in the body so that the reinforcing upper and lower plates 21, 22, 21 'and 22' can be placed on top and bottom of the adhesive pieces 14 and 14 'bent vertically at the edges. And a vertical bar on the upper portion of the supporting member 51 to form a vertical lift with respect to the upper surface of the supporting member, thereby generating heat generated by the pressure and electrical resistance generated by the hydraulic cylinder. (21) (21 ') and adhesive pieces (14) (14'), reinforcement lower plate (22) (22 ') Reinforcing adhesive portion 50 consisting of a pressing member 52 provided at the tip of the hydraulic cylinder to transmit: a mold member having a diameter smaller than the diameter of the opening of the cylindrical body of the fiber drum and a concave groove formed on the circumferential surface of the diameter ( 61) and slide lock plate members 66a, 66b, 66c and 66d which are installed on the upper surface of the mold member to form a larger diameter than the mold member when radially sliding horizontally to fix the opening diameter of the fiber drum. In order to return the horizontal slide slide lock plate, the ring-shaped spring (S) is installed on the slide lock plate, and the upper portion of the form member is moved from the bottom of the center of the form member to apply horizontal movement force to the slide lock plate. The drive member 32 is provided with the displacement member provided by the displacement of a cam curve, and it moves forward and backward by the drive member in the position which faces the circumference | surroundings of a mold member. The fiber is made up of the same diameter as the height of the mold and a heating wire for generating heat according to the electrical resistance, and a diameter reducing part (70) consisting of a pressing molding member (70) having a protrusion for expansion and contraction of the opening on the front Drum manufacturing equipment.