KR100886226B1 - Punching apparatus for cushion - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a perforation device for natural (latex or the like) or synthetic cushion for a cushioning material such as a bed mattress or a chair, The lower end portion of the thin cylindrical debris formed by the knife can be cut along with the rise of the insert pin for forming the groove at the time of forming the groove and the knife is used only at the time of forming the hole, The present invention relates to a cushion perforation apparatus capable of automatically separating fragments from an insert pin or a knife by means of a separating pipe arranged inside a knife.

A cushion perforation apparatus according to the present invention includes a work table including a table on which a cushion and a post with a lift are placed; A base which is moved up and down along the lift, a motor, a plurality of driven wheels provided on the base and receiving the power of the motor, and a pipe type knife connected to the driven wheels; And a plurality of insert pins provided on the base and arranged coaxially with the knife; A debris separating portion provided on the worktable and a separating pipe provided on the fixing frame and having an outer diameter smaller than an inner diameter of the knife; And a cushion fixing bar lifted and lowered along the lift of the work table.

Cushion, polyurethane foam, perforation, debris separation, knife, insert pin, separating pipe

Description

[0001] PUNCHING APPARATUS FOR CUSHION [0002]

1 and 2 are a schematic front view and a side view of a cushion perforation apparatus according to the present invention,

3 is a schematic cross-sectional flow chart showing a process for forming a groove of a thick cushion,

4 is a schematic cross-sectional flow chart showing a process for forming a hole in a thin cushion.

Description of the Related Art

A: Perforation device C: Cushion

C1: groove C2: hole

10: work table 11: table

13: holding 20:

21: base 23: knife

30: Debris rejection 31: Expectation

33: insert pin 40: fragment separation part

41: fixed frame 43: separation pipe

50: cushion fixing bar 60: cushion moving means

70: Resistance member

The present invention relates to a perforator for natural (latex, etc.) or synthetic (polytartan, etc.) cushions for cushioning materials such as bed mattresses or chairs,

More specifically, in forming a hole (in the case of a thin cushion) or a groove (in the case of a thick mattress or the like) for enhancing the breathability and reinforcing the buffering restoring force through the turning pipe-type knife,

In forming the groove, the lower end of the thin cylindrical debris formed by the knife can be cut along with the rise of the insert pin,

At the time of forming the holes, only the knife is used,

The present invention also relates to a cushion perforation apparatus capable of automatically separating fragments from insert pins or knives by a separating pipe arranged inside the knife.

The use of cushions is common in furniture, vehicles, construction, bedding, and other miscellaneous goods such as bed mattresses, sofas, chair cushions, etc., and synthetic materials such as natural materials such as latex or polyurethane foam called sponge are used.

These cushions generally have holes or grooves for enhancing air permeability, reinforcing buffering restoring force, preventing warpage, and the like.

In the present specification, 'perforation' means not only a concept that a cushion is formed as a perfect 'hole', but also a concept that a 'groove' is formed in a cushion for a thick mattress as shown in FIG.

Among the conventional perforation devices, a sheet punching method using a roller is disclosed in Patent Publication No. 0316519 (Nov. 21, 2001) "Membrane Foamed Polyethylene Sheet and Manufacturing Apparatus"

It is not suitable for perforating thick cushions such as bed mattresses, and is simply not suitable for forming grooves.

[0002] A sponge foam molding apparatus and a method for forming a sponge foam using the same, which are disclosed in Korean Patent No. 0666672 (Mar. 03, 2007), discloses a method in which a rotating cutter cuts a plurality of cylindrical fragments on a sponge foam, The sponge foam is lowered to compress the sponge foam. Then, the push protrusion pushes up the cylindrical sponge with the rising of the lower operating body. Finally, the rotary cutter cuts the fragments through the process of cutting and removing the sponge foam. Technology is presented.

However, such a manufacturing apparatus and method may be suitable for a polyurethane foam having a high degree of compression, but latex or other natural or synthetic elastomer having a limited compressibility is not able to be compressed upon removal of a cylindrical debris after cutting by a cylindrical cutter Therefore, there is a fatal disadvantage that a problem that the debris can not be removed occurs.

Accordingly, it is an object of the present invention to provide a cushion punching apparatus capable of both a complete punching operation of a cushion and a simple hole forming operation, and capable of perforating, separating a cylindrical debris and removing debris without compressing the cushion.

For this purpose, it is possible to facilitate the separation of the cylindrical shaped debris when forming the groove in the cushion through the debris rejection including the insert pin which is moved up and down through the center of the pipe-

Another object of the present invention is to provide a cushion punching apparatus which is capable of easily removing fragments through a separating pipe of a fragment separating portion arranged inside the knife when grooves and holes are formed.

Further, there is provided a cushion punching apparatus in which a resistance member such as a Velcro tape is introduced to introduce a means for moving a table of a work table forward and backward as a cushion moving means for continuous punching of a wide cushion, .

According to an aspect of the present invention, there is provided a cushion punching apparatus comprising: a work table including a table having a pillar and a cushion provided with a lift; A base which is moved up and down along the lift, a motor, a plurality of driven wheels provided on the base and receiving the power of the motor, and a pipe type knife connected to the driven wheels; And a plurality of insert pins provided on the base and arranged coaxially with the knife; A debris separating portion provided on the worktable and a separating pipe provided on the fixing frame and having an outer diameter smaller than an inner diameter of the knife; And a cushion fixing bar lifted and lowered along the lift of the work table.

delete

delete

delete

Further, the cushion perforating apparatus according to the present invention is provided with forward and backward means for the table of the work table as cushion moving means,

Preferably, a resistance member for preventing movement of the cushion is provided on the upper surface of the table of the work table.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

In the drawings, the same reference numerals are used for the same reference numerals, in particular the numerals and digits of the ten digits and the digits of the digits, the digits of the digits, the digits of the digits and the alphabets are the same, The members referred to by these standards can be identified as members that meet these standards.

1 and 2, the debris separation unit 40, which is located at the lower side of the worktable 10 and is located above the strut 13, And the table 11 is moved forward by the forward and reverse means 60 in a state where the two pillars 13 are positioned on both sides and the face shown in FIG. .

The cushion perforating apparatus A according to the present invention includes a work table 10 including a table 11 arranged at a predetermined height and a plurality of And a debris separation unit 40 fixed to the strut 13, as shown in FIG.

The table 11 of the work table 10 includes the knife 23, the insert pin 33, the separation pipe 43,

(Each of the three members 23, 33, and 43 may be arranged in a staggered configuration such as '∴∵' or ':::' when viewed in a plane)

In order to form repeated holes or grooves while conveying the cushion (C), since the holes or grooves are to be drilled at one time by two rows

It is desirable to introduce an automated cushion moving means.

For this purpose, in order to form a hole or a groove formed by conveying the table 11 itself rather than moving the cushion C,

It is preferable that the cushion moving means introduce forward / rearward means of the table 11.

As a specific embodiment, the forward and reverse means 60 of the table 11 is provided with a bolt 63 turned by a motor (not shown) and a bolt 63 provided below the table 11 and coupled with the bolt 63 (61). Since the mechanism for converting the rotational motion into the linear motion is well known, a detailed description thereof will be omitted.

It is preferable that a resistance member 70 (see FIG. 1) is introduced as a fixing means in order to prevent the cushion (C)

The resistance member is made of a woven fabric such as a velcro tape, particularly a hook-type velcro tape or a carpet having a stiff bristle layer formed thereon, and thus the member is resistant to movement of the cushion due to high frictional resistance with the cushion.

One of the main features of the present invention, debris rejection 30, comprises a base 31 positioned between said struts 13 and a plurality of (two rows longitudinally arranged) insert pins 33 arranged below the base.

The base 31 is lifted and lowered along a lift 15 provided on the column 13 and the lift 15 is connected to a plunger (not shown) connected to the base 31, A pinion and a rack gear rotated in connection with other motors, a vertical bolt and a nut structure for the following perforations 20, and the like.

A bearing (not shown) is provided at the coupling portion of the base 31 of each of the insert pins 33 and is turned when it contacts the knife 23 of the perforation 20 as described below Do not disturb knife turning.

If necessary, the insert pin 33 may be deformed by a motor.

A perforator 20 including a pipe-type knife 23 includes a base 21 arranged between the two struts 13 and a driving wheel 25 rotated by a motor M2 as shown in FIGS. 23A and a driven wheel 23B connected to the belt 25. The knife 23 is also arranged in two rows and each of the knives is provided with a driven wheel 23B.

The upward and downward movement of the base 21 of the perforation 20 is controlled by the vertical bolt 15A (see FIG. 2) pivoted by the motor M1 arranged on the fixing table 17 located at the upper end of the two columns 13, (Not shown) provided on both sides of the bolt 21, and the circular motion of the bolt is also converted and transmitted to a nut, and finally to a linear up and down movement of the base. In FIG. 2, reference numeral 15a denotes a function of stabilizing the lifting and lowering operation of the guide straight base 21.

Also, the configuration of the lift for lifting and lowering the base can be variously modified.

The debris separation unit 40 is one of the main features of the present invention. The debris separation unit 40 is provided in the stanchion 13 of the worktable 10 and is located between the perforation base 21 and the debris- And a separating pipe 43 provided on the fixing frame and having an outer diameter smaller than the inner diameter of the knife.

The outer diameter of the three members, which are arranged coaxially with each other and coincide with each other in accordance with the cushioning process, are in the order of [knife 23> separation pipe 43> insert pin 33]

Naturally, the inner diameter of the knife 23 is larger than the outer diameter of the separation pipe 43, and the inner diameter of the pipe 43 is larger than the outer diameter of the insert pin 33.

Also, a bearing (not shown) is provided at the joint part of the fixing pipe 41 of the separating pipe 43 so as not to interfere with the rotational force of the knife 23. [

The separation pipe 43 extends through the inside of the knife 23 to the upper part of the perforation base 21 so as not to interfere with the knife 23 being pivoted.

The fixing bar 50 arranged at the lower part of the base 21 of the perforator 20 to slightly press the cushion C is used to cut the cutting of the insert pin 33 by the cutting by the knife 23, (C3) (see Fig. 3).

The up and down movement of the cushion fixing bar 50 can be variously implemented by a hydraulic cylinder, a rack gear, a feed bolt, and a nut type.

Figures 3 and 4, which relate to the mode of forming the vent groove (C1) for a thick cushion, such as a bed mattress,

The operation and effect of the cushion perforation apparatus A according to the present invention will be described with reference to Fig. 4 related to a ventilation hole forming mode C2 for a thin cushion such as a polyurethane foam for an auxiliary cushion.

In the present description, in the terms 'venting groove' and 'venting hole', 'venting' refers to one side of a function due to a groove or a hole formed in a cushion, and the present invention is not limited by the present invention.

3, the thick cushion C is placed on the table 11 of the work table 10 and the cushion fixing bar 50 is first lowered to slightly press the cushion C to fix it. Subsequently, the base 31 of the piece rejection 30 is lowered to insert the insert pin 33 at a certain depth (at least the depth of the vent groove C1 to be formed).

The degree of insertion of the insert pin 33 with respect to the cushion C is then inserted into a dimension larger than the height of the fragment C3 cut by the knife 23 for circular movement of the lower end of the cylindrical fragment C3 .

Next, the motor M2 is operated in the perforation 20 to cut the cushion C while turning the knife 23 to form a cylindrical debris,

When the cutting is completed to the set depth, the base 21 is raised so that the knife 23 is positioned above the cushion C.

When the insert pin 33 of the debris removal unit 30 is then lifted up, a fracture occurs at the lower end of the cylindrical debris C3. This is because the circular restoring force of the cushion material causes the end of the insert pin to contact the peripheral cushion Because the part is tight, it keeps strong enough to ensure that the fracture of the bottom of the fracture occurs due to the rise of the insert pin.

The insert pin 33 preferably has a tip portion and can be deformed into a shape that contributes to a more rigid cushion or a larger-diameter debris fracture by forming a spiral or fine barb on the insert pin if necessary.

The outer diameter of the debris C3 is larger than the outer diameter of the debris C3 when the debris C3 attached to the insert pin 33 reaches the debris separating pipe 40 located on the inner circumferential surface of the knife 23, Is larger than the inner diameter of the pipe (43).

When the knife 23 is completely lifted, the lower end of the separation pipe 43 is exposed as shown in FIGS. 1 to 4, so that the separation of the fragment C3 is possible.

The fixing bar 50 is lifted and the cushion is moved to the position for forming the vent groove C1 corresponding to the next two rows by the operation of the forward and backward means 60 of the table 11 as the cushion moving means.

If it is necessary to form a ventilation groove on both sides of the cushion, turn the cushion upside down on the work table to form a vent hole.

Further, if necessary, the ventilation grooves can be formed on both sides of the cushion by arranging the perforations, fragments, fragments, and the like on the work table and forming a through hole through which the knife (23) .

The above operations of the cushion fixing bar 50, the piece rejection 30, the perforator 20 and the cushion moving means 60 can be automatically controlled by the implementation of a CNC or PLC system incorporating an input means such as a keyboard and a display, .

The depth of the vent groove or vent hole can be controlled by sensing by the sensor,

1, a fixing bolt for each fixing plate 27 for fixing the knife 23 to the base 21 of the perforation 20 is loosened with a wrench and the interval between the knives is widened The insert pin 33 and the separating pipe 43 can be adjusted in a similar manner,

The diameter can be adjusted by replacing the knife itself.

Through the adjustment of the depth, spacing, and diameter of the ventilation grooves or vent holes, the cushion for the bed mattress is formed by densely forming the vent groove or the vent hole in the weight-worn hips or shoulder contact areas, The elasticity or hardness can be adjusted in such a way that the ventilating groove or the vent hole is formed with little or no ventilation.

In addition, the debris C3 dropped through the separate blowing or suction means can be removed from the table 11, and the shape can be collected in a certain receptacle, thereby improving the quality of the cushion to be drilled and contributing to cleanliness of the workplace.

4 shows a process of forming a vent hole C2 for a thin cushion C. In this case, since the operation of the debris rejection 30 is unnecessary, And the rising and falling of the motor is interrupted.

In this mode, the cushion fixing bar 50 is first lowered to fix the cushion C, and then the perforation 20 is rotated by the rotation of the knife 23 driven by the motor M2 and the lowering of the base 21 do.

Then, when the knife 23 rises, the debris C3 rises in the form of being caught inside the knife,

Since the separating pipe 43 is arranged inside the knife 23, fragments having an outer diameter larger than the inner diameter of the pipe are caught by the pipe and separated from the knife 23 to fall down.

Then, the table 11 is moved by the lifting of the fixing bar 50 and the forward / backward means 60, and the next two rows of through holes are opened.

In the above description, the conventionally well-known techniques relating to the punching and drilling method, particularly the base, the base, and the lifting and lowering of the failure bars are omitted, but those skilled in the art will naturally guess and deduce it.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And variations are to be construed as falling within the scope of protection of the present invention.

The cushion punching apparatus of the present invention having such a configuration can perform both a complete punching operation and a simple hole forming operation without compression of a cushion made of a polyurethane foam or a latex and can easily perform perforation, debris separation and debris removal, Can greatly increase.

Claims (9)

A worktable including a table on which a cushion and a column with a lift are placed; A base which is moved up and down along the lift, a motor, a plurality of driven wheels provided on the base and receiving the power of the motor, and a pipe type knife connected to the driven wheels; And a plurality of insert pins provided on the base and arranged coaxially with the knife; A debris separating portion provided on the worktable and a separating pipe provided on the fixing frame and having an outer diameter smaller than an inner diameter of the knife; And A cushion fixing bar lifted and lowered along the lift of the work table; And a cushion punching device. delete delete delete The method according to claim 1, And a cushion moving means for moving the cushion. 6. The apparatus according to claim 5, wherein the cushion moving means And a forward / backward means for the table of the workbench. The method according to claim 1, And a resistance member for preventing movement of the cushion is provided on the upper surface of the table of the work table. The method according to claim 1, And a bearing is provided on the insert pin for rejecting the fragment. The method according to claim 1, Wherein the separating pipe is provided with a bearing.

Images