KR102013361B1 - Polishing pad manufacturing apparatus having a double blade - Google Patents

Abstract

The present invention relates provides a polishing pad manufacturing apparatus having a double blade, which comprises a cutting mold portion (50) provided with an upper mold (51) punching sand paper (A) moved to a lower mold (52) to be cut and processed with a polishing pad having a predetermined shape. The upper mold (51) comprises: a first blade (110) in which a central portion constituting a hollow is formed; and a second blade (120) of which an inner side is hollowed, and a dead end hitting the sand paper (A) is fixed to a hollow surface of the first blade (110) to protrude downwards compared to the first blade.

Description

Polishing pad manufacturing device with double blades {POLISHING PAD MANUFACTURING APPARATUS HAVING A DOUBLE BLADE}

The present invention relates to a polishing pad manufacturing apparatus having a double blade.

In general, polishing refers to smoothing the surface of a solid by rubbing it to the edges or surfaces of other solids. This polishing involves the use of abrasives (very hard materials used to grind and polish stones and metals). It can be said that the operation to smooth the surface of the object to be processed.

In using the above-described abrasives, a polishing machine may be used to manually carry out polishing paper, which is composed of abrasives, or to obtain a high level of smoothness by grinding a large amount of objects in a short time.

On the other hand, the most common types of grinders are hand grinders which are configured to be easily lifted by hand. Such grinders are composed of a grinder body, a drive motor configured in the grinder body, and a polishing disc installed on a drive shaft of the drive motor. The polishing operation is performed by the polishing disk at the time of rotation of the polishing disk by the drive of the drive motor.

The polishing disk according to the prior art as described above is disclosed in Korean Utility Model No. 1998-059542, wherein the polishing disk is detachably attached to the other surface of the polishing pad having an abrasive attached to one surface by Velcro tape on the front surface of the disk holder. It is composed. In the polishing disk configured as described above, the surface of the workpiece is polished according to the contact of the workpiece with the abrasive of the polishing pad when the disc holder rotates.

Here, the polishing pad is processed into a predetermined shape (for example, a circular shape) so as to be attached to the polishing disk by the polishing pad manufacturing apparatus.

In the conventional polishing pad manufacturing apparatus, when a large sandpaper having a horizontal and a vertical width is inserted, a plurality of blades installed in the upper mold 51 descend and punch the sandpaper to be cut into a plurality of polishing pads.

In this case, the blade applied to the conventional polishing pad manufacturing apparatus is expensive equipment, the service life is determined according to the wear degree, and the replacement cycle is faster than the blade of the general punching die device because the wear is high according to the object is sand paper.

That is, the conventional polishing pad manufacturing apparatus has a high wear rate of the blade, the replacement cycle is short, and the expensive equipment is a cause of increased management and maintenance costs.

In addition, in the conventional polishing pad manufacturing apparatus, the manufactured polishing pads are collected in one tank or an enclosure, and then, the quantity is sorted according to the ordering capacity and stored in a packing box. Therefore, the conventional manufacturing apparatus has a problem that requires additional manpower for the classification and storage of the polishing pad.

In addition, the remaining sandpaper after the polishing pad is manufactured is discharged as waste as the remaining portion from which the polishing pad is drawn out. At this time, the waste is collected and / or stored in a designated place by the worker using various means such as wires or ropes.

However, although the waste is a rolled bundle, the worker needs to manually bundle before moving it to move it manually, but the work is difficult and the bundle state may be disturbed during the movement, thus requiring a lot of effort during the movement.

Korean Patent Publication No. 10-2006-0024016 (2006.03.15) Korean Utility Model Registration Publication No. 20-0400191 (2005.10.26)

Therefore, the present invention has been made to solve the conventional problems as described above, the object of the present invention is to provide a double blade that can extend the life of the blade for the processing of the polishing pad can reduce the management and maintenance costs The present invention provides a polishing pad manufacturing apparatus.

In addition, the present invention provides a polishing pad manufacturing apparatus that can automatically dispense the manufactured polishing pads on a quantity basis to reduce the manpower and time required for the classification of products.

In addition, the present invention is to provide a polishing pad manufacturing apparatus that improves the structure of the coiler is loaded with waste to facilitate the movement and bundle of the remaining waste after manufacture.

Therefore, the present invention may include the following embodiments in order to achieve the above object.

An embodiment of the present invention includes a cutting mold portion having an upper mold for punching the sandpaper moved to the lower mold and cutting with a polishing pad having a predetermined shape, wherein the upper mold has a first blade having a central portion forming a hollow. And a second blade having a hollow inside, and a second blade fixed to the hollow surface of the first blade such that an end striking the sandpaper protrudes downward than the first blade.

Therefore, according to the present invention, an auxiliary blade that can be manufactured and replaced at a lower cost is added to the blade for punching and cutting the polishing pad, thereby achieving an effect of saving maintenance costs due to blade replacement.

In addition, the present invention can directly store the manufactured polishing pad in the packaging box, can sense the weight of the packaging box to sort and move the completed packaging box and empty packaging box can reduce the manpower and time required for product storage It works.

In addition, the present invention provides a coiler that loads the remaining waste after manufacture and is provided with a bundle string integrally so that the wastes rolled in a roll form are easier to bundle, so that the bundle and movement of waste can be more easily obtained. Can be.

Figure 1 is a simplified block diagram showing a polishing pad manufacturing apparatus equipped with a double blade according to the present invention.
FIG. 2 is a simplified diagram of FIG. 1.
3 is a view illustrating an example of a polishing pad.
4 is a side cross-sectional view showing the cutting die portion.
5 is a perspective view illustrating the cutting module.
6 is a perspective view showing a second embodiment of a cutting module.
7 is an exploded view of FIG. 6.
8 is a view schematically illustrating a packaging unit.
9 is a view showing the guide means of the pressing die portion.
10 is a perspective view illustrating the coiler unit.
11 is a cross-sectional view showing a rotating shaft of the coiler portion.
12 is a view briefly illustrating a waste bundle process of the coiler unit.

The terms or words used in this specification and claims are not to be construed as limiting in their usual or dictionary meanings, and the inventors may properly define the concept of terms in order to best explain their invention in the best way possible. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise. In addition, the terms “… unit”, “… group” described in the specification mean a unit that processes at least one function or operation, which may be implemented by a combination of hardware and / or software.

The term "and / or" throughout the specification should be understood to include all combinations that can be presented from one or more related items. For example, the meaning of "first item, second item and / or third item" may be given from two or more of the first, second or third items as well as the first, second or third items. Any combination of the possible items.

Hereinafter, a preferred embodiment of a polishing pad manufacturing apparatus equipped with a double blade according to the present invention will be described in detail with reference to the drawings.

Figure 1 is a simplified block diagram showing a polishing pad manufacturing apparatus equipped with a double blade according to the present invention, Figure 2 is a simplified view of Figure 1, Figure 3 shows a sandpaper (A) and the processed polishing pad (a) Drawing.

1 to 3, the present invention provides a control unit 10 for outputting a control command, a switch unit 20 for outputting an operation command and / or a setting signal of the control unit 10, and outputting an alarm signal. The buzzer 30, the cutting die 50 for processing the polishing pad a, the press die 60 for pulling out the polishing pad a cut from the sand paper A, and the rolled sand paper A ), The coiler unit 70 for loading the uncoiler unit 80 for supplying the cutting mold unit 50 and the waste C of the sandpaper A remaining after the polishing pad a is processed in a roll form. And, the packaging unit 40 for classifying and storing the polishing pad (a) drawn out from the pressing die 60 by the set quantity.

The switch unit 20 sets an operation on or off signal, a reservation operation time or an alarm condition as a plurality of switches.

The uncoiler part 80 stores and stores the sand paper A in a rolling state, and sequentially supplies the rolled sand paper A to the cutting mold part 50 while being rotated in one direction by the control of the controller 10. do.

The coiler part 70 passes through the cutting mold part 50 and the pressurizing mold part 60 sequentially, and then sand sand A (hereinafter referred to as waste C) remaining after the polishing pad a is drawn out. It is rolled up and stored in a rolling form.

That is, the uncoiler part 80 supplies the sand paper A before processing, and the coiler part 70 receives the sand paper A (waste C) remaining after the polishing pad a is processed. Detailed description of the coiler 70 will be described later.

The buzzer 30 issues an alarm under the control of the controller 10. In this case, the alarm condition may be set to whether abnormal operation of the cutting mold unit 50 to the coiler unit 70 or high temperature and fire detection. Alternatively, the buzzer 30 may issue an alarm when all the rolls of sand paper A stored in the uncoiler unit 80 are exhausted. Here, the uncoiler part 80 and the coiler part 70 may be provided with a sensor (not shown) capable of detecting the quantity and / or weight of the roll of sand paper A supplied or received, respectively, and the controller ( 10) may control the buzzer 30 according to the detection signals of the corresponding sensors.

The cutting mold part 50 is divided into an upper mold 51 and a lower mold 52, and punches the sandpaper A supplied from the uncoiler part 80 to form a predetermined shape (for example, a circular shape). A plurality of polishing pads (a) having are processed. Here, the upper mold 51 includes a plurality of cutting modules 100 for cutting the sand paper A by combining with the lower mold 52 to process the plurality of polishing pads a.

Here, the sand paper A is rolled extending in one direction as shown in FIG. 3, and the cutting mold part 50 strikes the sand paper A to process the polishing pad a. FIG. 3 shows the sandpaper A before the polishing pad a has been processed by the cutting die 50 but before being drawn out.

The press mold part 60 separates the grinding | polishing pad a cut | disconnected by the cutting die part 50 from the sand paper A. FIG. To this end, the pressure mold unit 60 may be provided with a plurality of pressure bars 61 (see FIG. 8) on the lower surface of the body to be moved up and down. A detailed description will be described later.

The packing unit 40 may include first and third conveyors 41, 42, and 43 and a packing box B to accommodate the polishing pad a separated from the press mold 60 as a packing box B. FIG. It may include a weight sensor 44 for detecting the weight of). The weight sensor 44 detects the weight of the packing box B in which the polishing pad a is accommodated, and outputs the weight to the controller 10. The controller 10 receives the detection signal of the weight sensor 44 to move the packing box B in which the set weight is stored, and then moves the conveyors 41 to 43 to move the empty packing box B to the storage position. To control.

The present invention includes such a configuration, and will be described in detail below for each configuration. First, the cutting mold unit 50 will be described with reference to FIGS. 4 to 7. Here, the upper mold is arranged in a plurality of cutting modules 100 in the lower surface, but only one cutting module 100 is illustrated in FIG.

Figure 4 is a side cross-sectional view showing a cutting die portion, Figure 5 is a perspective view showing a cutting module.

4 and 5, the cutting mold part 50 includes an upper mold 51 which moves up and down, and a lower mold 52 which supports sand paper A that is fixedly moved below the upper mold 51. ).

The upper mold 51 has a plurality of cutting modules 100 for hitting and cutting the sand paper A, a convex surface 511 for pressing the sand paper A, and an installation groove 512 in which the cutting module 100 is installed. ).

The convex surface 511 presses the sandpaper A in connection with the concave groove 521 of the lower mold 52 which will be described later as a plurality of downwardly convex curved surfaces. That is, when the upper mold 51 is lowered, the convex surface 511 is inserted into the recess 521 of the lower mold 52 and presses the sandpaper A positioned therebetween.

The installation groove 512 is formed as a groove inwardly around the convex surface 511 to form a space accommodated by the cutting module 100.

Here, the upper mold 51 is lowered and the cutting module 100 punches the sandpaper A positioned between the lower mold 52 and the polishing pad a according to the shape of the cutting module 100. . Here, the upper mold 51 may further include an elastic means (not shown) for such a punching process, which is omitted because it is a technique generally applied to the punching die.

The cutting module 100 includes a circular first blade 110 and a second blade 120 fixed at an inner surface of the first blade 110.

The first blade 110 has a hollow central portion 111 and a plurality of fixing holes 112 on the upper surface. Here, a plurality of fixing holes 112 are formed to fasten fixing means (for example, screws or bolts) fixed to the lower surface of the upper mold 51.

The second blade 120 is fixed in a ring shape fixed to the inner surface of the hollow central portion of the first blade 110 so that the end thereof protrudes without maintaining the same horizontal line as the first blade 110. Here, the second blade 120 presses the sandpaper A before the first blade 110 as the end is fixed to protrude downwardly from the first blade 110.

Accordingly, the first blade 110 and the second blade 120 are installed in the installation groove 512, and the convex surface 511 protruding downward from the upper mold 51 is exposed as the central portion 111 is hollow. Let's do it.

The lower mold 52 has recessed grooves 521 downwardly formed at the same number and position as that of the cutting module 100, and an insertion end 522 upwardly protruded at a position corresponding to an outer edge of the recessed groove 521. And, the inlet groove 523 through which the first blade 110 is introduced is formed inward.

The concave groove 521 forms a curved surface inward from the upper surface of the lower mold so as to be connected to the convex surface 511 protruding through the hollow of the second blade 120, and to the convex surface 511 of the upper mold 51. The sand paper A pressurized is supported.

The insertion end 522 is inserted into the spaced space between the convex surface 511 and the second blade 120 when the upper mold 51 is lowered. Here, the insertion end 522 is fastened to a spaced gap between the convex surface 511 and the second blade 120 while pressing the sand paper A while staggering up and down with the second blade 120. That is, the insertion end 522 serves to hold the sand paper (A) does not flow when the first blade 110 and the second blade 120 hit the sand paper (A).

The inlet groove 523 extends by a predetermined length from the outside about the insertion end 522 to form a downward groove. Here, the inlet groove 523 forms a space into which the first blade 110 and the second blade 120 are inserted.

In the upper mold 51 as described above, when the first blade 110 directly strikes the sand paper A, abrasion is severely generated so that the replacement cycle may be faster. However, as the second blade 120 is additionally installed on the first blade 110, the sand paper A is hit before the first blade 110. That is, the second blade 120 hits first, and then the first blade 110 is pressurized so that the second blade 120 receives more impact.

In this case, the second blade 120 is a ring-shaped extension tube 121 that is in close contact with the inner surface of the central portion 111 of the first blade 110, that is, the manufacturing cost is lower than that of the first blade 110. .

In addition, the second blade 120 is formed of a ring-shaped extension tube 121, or as shown in the figure vertical plate 122 (Fig. 4, 6 and 7 extending vertically from the end of the extension tube 121) May be added to be fixed to the rear surface of the first blade 110.

That is, according to the present invention, the second blade 120 can be manufactured at a lower cost than the first blade 110, which is more expensive due to abrasion when cutting the sand paper A, resulting in replacement of the blade. Reduced administrative costs

In addition, the second blade 120 may be welded to the inner surface and / or the rear surface of the central portion 111 of the first blade 110 as in the above-described embodiment, and assembling and detaching may be performed as in the following other embodiments. It may be made of an easy structure. This will be described with reference to FIGS. 6 and 7.

6 is a perspective view showing a second embodiment of the cutting module, Figure 7 is an exploded view of FIG.

6 and 7, the cutting module 100 includes a first blade 110 and a second blade 120 that are detachable from each other.

The first blade 110 has a hollow central portion 111 corresponding to the shape of the polishing pad (a), and an inner surface (hollow surface) of the first fixing hole 112 and the central portion 111 to which the fixing screw is fastened from the upper surface. It includes a screw groove or thread 113 (hereinafter collectively referred to as screw structure) formed in the).

The second blade 120 is an extension pipe 121 forming an outer surface extending in one direction, a screw thread or a screw groove 123 (hereinafter referred to as a screw structure) formed on the outer surface of the extension pipe 121, and in the extension pipe 121 And a vertical plate 122 extending vertically, a second fixing hole 124 through which the fixing means communicates with the vertical plate 122, and a fastening hole 125 to which the fastening means 130 is fastened.

The extension tube 121 has a ring shape and the outer surface thereof extends in one direction to be in close contact with the hollow surface of the central portion 111 of the first blade 110.

The extension tube 121 is fastened to the screw structure 113 formed on the hollow surface of the first blade 110, the screw structure 123 formed on the outer surface.

That is, the second blade 120 is screwed while the extension tube 121 is rotated in one direction to the hollow surface of the first blade 110, it may be separated while rotating in the opposite direction.

The vertical plate 122 extends in the vertical direction on the outer surface of the extension tube 121. When the extension plate 121 is fastened to the hollow surface of the first blade 110, the vertical plate 122 may be in close contact with the opposite surface of the first blade 110 to prevent movement of the extension pipe 121.

In addition, the vertical plate 122 provides a coupling area between the first blade 110, the second blade 120, and the upper mold 51 as the second fixing hole 124 and the fastening hole 125 are formed, respectively. .

The second fixing hole 124 guides the fixing means (not shown) introduced into the first fixing hole 112 to communicate with the upper mold 51.

The fastening hole 125 guides the fastening means 130 (for example, a bolt or a screw) to be introduced into and communicated with the first blade 110. Here, the opposite surface of the first blade 110 may be formed with a coupling hole (not shown) matching the fastening hole 125.

The fastening means 130 couples the first blade 110 and the second blade 120 through the fastening hole 125.

That is, the first blade 110 and the second blade 120 according to the present invention can be fastened and separated by a screw coupling method, and may be additionally fixed by the fastening means 130. The coupling method using the coupling and fastening means 130 by the screw structures 113 and 123 between the first blade 110 and the second blade 120 may be simultaneously applied or only one of them may be selectively applied.

The packaging part 40 and the press mold part 60 are demonstrated with reference to FIG. 8 and FIG.

FIG. 8 is a view schematically showing the pressurizing mold part 60 and the packing part 40 in the present invention, and FIG. 9 is a view showing the guide means 62 of the pressurizing mold part 60.

Referring to FIGS. 8 and 9, the packing unit 40 may include the first to third conveyors 43 driven by the control of the controller 10, and the packing box B in which the polishing pad a is accommodated. It may include a weight sensor 44 for sensing the weight.

The pressure mold part 60 is provided with a plurality of pressure bars 61 fixed with a plurality of pressure bars 61 fixed on the lower surface of the mold body which is moved up and down, and presses and pulls the polishing pad a cut from the sand paper A, and sand paper ( A) and the guide means 62 for guiding the polishing pad (a).

The pressure bar 61 is formed of a support bar 611 extending downward from the lower surface of the pressure mold part 60 moving up and down, and an expansion plate 612 having an area horizontally extended from the end of the support bar 611.

The guide means 62 may include a guide bar 621 for supporting and guiding both ends of the sand paper A, and an inclined plate 622 extending downwardly inclined between the guide bars 621.

The guide bar 621 is formed as a vertical plane bent in a horizontal plane extending in one direction as a 'b' type or 'c' type as a pair spaced apart from each other. Therefore, the guide bar 621 supports both ends of the sand paper A moved from the cutting mold unit 50 in a horizontal plane, and guides in a vertical plane to be moved along the horizontal plane.

Preferably, a rotating roller (not shown) is provided on the horizontal surface of the guide bar 621 to support the sand paper A to be more smoothly moved.

The inclined plate 622 extends inclined toward the lower first conveyor 41 between the guide bars 621 to guide the polishing pad a separated by the pressure bar 61 to the first conveyor 41. .

Therefore, the pressurizing mold part 60 includes the above-described components and presses the polishing pad a from the sand paper A which is moved through the cutting mold part 50. For example, the cutting die 50 and the pressing die 60 are lowered and raised at the same time, and the sandpaper A is cut according to the operation of the coiler 70 and the uncoiler 80. It moves between 50) and the press mold part 60. As shown in FIG.

At this time, the coiler part 70 and the uncoiler part 80 stop the operation when the pressurizing mold part 60 and the cutting mold part 50 are lowered under the control of the controller 10 to stop the sand paper A which is moved. When the pressure die 60 and the cutting die 50 are elevated, the movement of the sand paper A is resumed.

Therefore, the sand paper (A) is stopped after moving to the lower side of the pressing die 60 in the state containing the polishing pad (a) cut by the cutting die 50, the pressing die 60 is lowered to the polishing pad (a) is separated from the sandpaper (A). The separated polishing pad a is guided to the first conveyor 41 by the inclined plate 622.

The first conveyor 41 has a horizontal conveyor 41a for horizontally moving the polishing pad a withdrawn from the sand paper A at the lower side of the press mold unit 60, and a polishing pad transferred through the horizontal conveyor 41a. It may include an inclined conveyor (41b) for guiding (a) to the packaging box (B).

The horizontal conveyor 41a is horizontally rotated under the press mold part 60 to move the polishing pad a separated by the press mold part 60 from the sand paper A in one direction.

The inclined conveyor 41b moves the polishing pad a moved from the horizontal conveyor 41a to the second conveyor 42. Here, the packing box (B) is positioned below the end of the inclined conveyor (41b), the polishing pad (a) is preferably dropped to the packing box (B).

The second conveyor 42 horizontally moves the packing box B from the lower side of the inclined conveyor 41b to the third conveyor 43. Here, the plurality of packing boxes B are arranged on the upper surface of the second conveyor 42 and sequentially moved to the falling point of the polishing pad a which is moved from the inclined conveyor 41b.

The weight sensor 44 senses the weight of the point at which the packing box B in which the polishing pad a falling from the inclined conveyor 41b is accommodated in the second conveyor 42 is located. The weight sensor 44 outputs the weight detection signal of the packaging box B to the controller 10.

Therefore, the controller 10 operates the second conveyor 42 when the set weight is detected through the detection signal of the weight sensor 44. Accordingly, the second conveyor 42 is operated to transfer the packing box B in which the polishing pad a is stored, to the third conveyor 43. At this time, the empty packaging box (B) is moved to the upper surface of the second conveyor 42 after the packaging box (B) in which the polishing pad (a) is stored, or by the operator's manual labor (B) Can be raised to the set position.

In addition, the packing unit 40 may additionally install a transfer unit 45 for transferring the packing box B in which the polishing pad a is accommodated between the second conveyor 42 and the third conveyor 43. have. The transmission part 45 includes a body 452 placed on the ground and a transmission plate 451 which forms an inclined surface inclined downward from the second conveyor 42 to the third conveyor 43 on the upper surface of the body 452. can do.

Preferably, the body 452 is a movement means (not shown) such as wheels and rollers for the convenience of movement, and a movement detection sensor such as a piezoelectric sensor or an optical sensor to check whether the packing box B is moved. Not shown) may be added. The control unit controls the uncoiler unit 80, the cutting mold unit 50, the press mold unit 60, the coiler unit 70, and the packing unit 40 according to the movement detection signal of the movement detection sensor. If the movement detection signal is not received after the conveyor 42 is driven, the buzzer 30 is controlled to alert the failure.

Such a transmission unit 45 may be applied to adjust the gap between the third conveyor 43 and the second conveyor 42, or may be applied to compensate for the height difference.

The third conveyor 43 extends to the shipping or loading position of the packing box B to move the packing box B in which the polishing pad a is stored.

As described above, the coiler 70 is a device for storing sand paper, that is, waste C, remaining after the polishing pad a is processed. This will be described with reference to FIGS. 10 to 12.

FIG. 10 is a perspective view of the coiler part, FIG. 11 is a cross-sectional view illustrating a rotating shaft of the coiler part, and FIG. 12 is a view briefly illustrating a waste bundle process of the coiler part.

10 to 12, the coiler 70 may rotate the coiler driving motor 75 generating a rotational force, a rotating shaft 72 in which waste C is rolled, and a rotating shaft 72. Providing a rotating panel (71) for supporting, a panel supporting plate (73) for supporting the rotating panel (71), a lower panel (74) for fixing the panel supporting plate (73), and bundle strings (761, 761 '). And a first string roller 76 and a second string roller 76 '.

The coiler drive motor 75 is driven by the control of the controller 10 to rotate the rotating shaft and / or the rotating panel 71.

The rotating panel 71 is fixed to be rotatable at the tip of the panel support plate 73 and is rotated by the rotational force of the coiler driving motor 75. Here, the rotating panel 71 includes a plurality of panel openings 711 opened so that the bundle string can be moved for fixing the waste C using the bundle string described below.

Alternatively, the rotating panel 71 may be fixed, and the rotating shaft 72 may be rotatably fixed. That is, as the rotating panel 71 and the rotating shaft 72 are integrated, the rotating shaft 71 is rotated while the rotating panel 71 is rotated, or the rotating panel 71 is fixed and only the rotating shaft 72 is the coiler driving motor 75. Can be rotated by The action of the rotating panel 71 and the rotating shaft 72 can be selected, it is not limited to any one is rotated.

The panel opening 711 is cut to extend in one direction from the rotating panel 71 is formed with a plurality. The panel opening 711 may be used as a passage for drawing the bundle strings 761 and 761 'extending from the first string roller 76 and the second string roller 76'.

The rotating shaft 72 may extend horizontally at the center of the rotating panel 71 or may extend horizontally in communication with the rotating panel 71. Here, the rotary shaft 72 is rotated by the drive of the coiler drive motor 75 after the start end of the waste (C) is wound on the outer surface to roll the waste (C).

In addition, the rotary shaft 72 is inwardly in the upper and lower sides to accommodate the receiving grooves 721 to receive the bundle straps (761, 761 '), and protrudes from the tip of the receiving groove 721 to fix the bundle straps (761, 761'). It may include a fixing protrusion 722 to.

The receiving grooves 721 are respectively received inwardly from the upper side and the lower side to receive the bundle strings 761 and 761 'released from the different string rollers 76 and 76', respectively. For example, the bundle strings 761 and 761 'may include a first bundle string 761 taken out from the first string roller 76 and a second bundle string 761' drawn out from the second string roller 76 '. ), And the first bundle string 761 and the second bundle string 761 'are accommodated in different accommodation grooves 721.

The fixing protrusions 722 protrude from the inner surfaces of the receiving grooves 721, respectively, so that the receiving grooves 721 may have a narrower width. Therefore, the fixing protrusion 722 is fixed by pressing the bundle. For example, the worker inserts the bundle strap between the fixing protrusions 722 to fix the bundle strap inside the receiving groove 721.

The first string roller 76 and the second string roller 76 'are rotatably fixed on the rear surface of the rotating panel 71 to accommodate and supply the first string strap 761 and the second string strap 761'. do. For example, the first string roller 76 and the second string roller 76 'are rotated by the operator's force to supply the first string string 761 and the second string string 761', respectively.

The first bundle string 761 and the second bundle string 761 'drawn out from the first string roller 76 and the second string roller 76' are accommodated in the accommodation grooves 721 of the rotation shaft 72, respectively. And is fixed in a pressurized state by the fixing protrusion 722. The bundle straps 761 and 761 'maintain a fixed state in the receiving groove 721 until the tip is drawn out by the operator.

That is, the first bundle string 761 and the second bundle string 761 ′ are accommodated in the receiving groove 721 of the rotation shaft 72 until all the wastes C of the sand paper A are rolled.

The present invention includes the configuration as described above, below will be described in more detail the operation of the present invention by the configuration as described above.

The operator receives the rolled sandpaper A in the uncoiler unit 80 and inputs an operation command after inputting and setting operating conditions through the switch unit 20. Therefore, the control unit 10 controls the uncoiler unit 80 to take out the rolled sandpaper A to sequentially move the cutting mold unit 50, the press mold unit 60, and the coiler unit 70. do.

Here, the tip of the sand paper A is fixed to the coiler part 70 and is moved by the associated rotation of the coiler part 70 and the uncoiler part 80. At this time, the sand paper (A) is moved between the upper mold 51 and the lower mold 52 of the pressure die 60, and when moved by a set section, the upper mold 51 is lowered and hit the sand paper (A) ( Punching) to machine the polishing pad a into a predetermined shape.

The convex surface 511 of the upper mold 51 protrudes from the center of the extension tube 121 of the second blade 120 is inserted into the concave groove 521. Therefore, the sand paper A located between the convex surface 511 and the concave groove 521 is fixed. And the cutting module 100 downward with the convex surface 511 is lowered to hit the sand paper (A) to cut the polishing pad (a).

In this case, the second blade 120 of the cutting module 100 may hit the sandpaper A before the first blade 110 as the end is fixed to protrude downwardly from the first blade 110.

Therefore, the cutting module 100 may disperse the impact applied to the first blade 110 by punching the sand paper by the second blade 120 fixed to the hollow central portion 111 of the first blade 110. .

Here, the second blade 120 is a ring-shaped extension tube 121 which is in close contact with the hollow surface of the first blade 110, so that the manufacturing cost is lower than that of the first blade 110, the first blade 110 As it is detachable and easy to replace, it is possible to obtain a lower cost of management and maintenance than the related art.

Thus, the polishing pad (a) processed by the cutting die 50 is moved to the lower side of the pressing die 60 in the state contained in the sand paper (A), the pressing die 60 is lowered while the polishing pad (a) is pressurized and drawn out to the first conveyor 41.

The polishing pad (a) is moved to the packing box (B) of the second conveyor (42) via the horizontal conveyor (41a) and the inclined conveyor (41b) of the first conveyor (41). In addition, the weight sensor 44 detects the weight of the packing box B accommodating the polishing pad a in the second conveyor 42 and outputs a weight detection signal to the controller 10.

The controller 10 checks the weight detection signal of the weight sensor 44 and drives the second conveyor 42 when the weight of the packaging box B reaches the set weight. Therefore, the packing box B is moved to the third conveyor 43 by the driving of the second conveyor 42. The third conveyor 43 moves the packing box B to a designated shipping place or other designated place.

In addition, the empty packaging box B is moved to the position where the polishing pad a falls from the inclined conveyor 41b in the second conveyor 42. At this time, the controller 10 may stop the processing of the polishing pad (a) at the moment when the packaging box (B) and the empty packaging box (B) is filled and replaced with each other as described above. .

In addition, the coiler 70 receives sandpaper A waste C while the rotary panel 71 and the rotation shaft 72 are rotated by the operation of the coiler drive motor 75 under the control of the controller 10. do. In this case, the rotation panel 71 is rotatably coupled to the panel support plate 73, and the rotation shaft 72 extends horizontally from the center of the rotation panel 71. Therefore, the rotating panel 71 and the rotating shaft 72 are rotated at the same time to receive the sand paper (A) waste (C).

Subsequently, when the sandpaper A stored in the uncoiler part 80 is exhausted and the processing of the last polishing pad a is completed in the pressure mold part 60, the controller 10 operates the buzzer 30. A warning is issued and the operation of the coiler drive motor 75 is stopped.

After the worker listens to the alarm sound of the buzzer 30, the worker bundles the waste C using the first bundle string 761 and the second bundle string 761 ′ respectively accommodated in the accommodation grooves 721. do. For example, the operator pulls the tip of the first bundle string 761 through the receiving groove 721, and the operator of the first bundle string 781 introduced into the receiving groove 721 from the first string roller 76. The rear end is pulled through the panel opening 711. At this time, the first string roller 76 is rotated by the pulling force to supply a first bundle string 761 wound on the outer surface.

The operator cuts the rear end of the first bundle string 761 after binding the front end drawn from the receiving groove 721 and the rear end of the first bundle string 761 pulled forward through the panel opening 711. do.

Therefore, the first bundle string 761 is connected and bound in a state leading from the center of the rolled waste (C) to the outer surface to fix the shape of the rolled waste (C) is not disturbed. In addition, the worker fixes the waste (C) by the second bundle string (761 ') through the same process.

When the movement of the rolled waste (C) is completed as described above, the operator has the first bundle strap 761 and the second bundle strap 761 'to fix the tip to the receiving groove 721 of the rotary shaft 72, respectively. Be prepared for the next task.

The waste C in the rolled form as described above is withdrawn from the coiler part 70 in a fixed state so as not to be disturbed by the first bundle string 761 and the second bundle string 761 ', and then the designated place. Is moved to. Therefore, the waste (C) can be carried out very easily as it is withdrawn and moved in a tightly bound state.

As described above, the sandpaper A is punched through the second blade 120 having a low cost instead of the first blade 110 having a high manufacturing cost, and the second blade is provided as an easy replacement structure. Accordingly can save the cost of maintenance and management of blades.

In addition, the present invention can automatically accommodate the manufactured polishing pad (a) in the packaging box (B) to reduce the manpower associated, and in particular bundle the means to facilitate the withdrawal and movement of the rolled waste (C) Can provide.

Embodiments of the present invention described above are merely exemplary, and those skilled in the art will appreciate that various modifications and equivalent other embodiments are possible therefrom.

Therefore, it will be understood that the present invention is not limited to the forms mentioned in the above detailed description. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents, and substitutes within the spirit and scope of the invention as defined by the appended claims.

10: control unit 20: switch unit
30: buzzer 40: packing unit
41: first conveyor 41a: horizontal conveyor
41b: inclined conveyor 42: second conveyor
43: third conveyor 50: cutting mold portion
51: upper mold 52: lower mold
60: pressurizing mold part 61: pressurizing bar
62: guide means 70: coiler part
71: rotating panel 72: rotating shaft
73: panel support plate 74: lower panel
75: coiler drive motor 76, 76 ': string roller
80: uncoiler 100: cutting module
110: first blade 111: center
112: the first fixed hole 120: the second blade
121: extension tube 122: vertical plate
124: second fixed hole 125: fastener
130: fastening means 511: convex surface
512: mounting groove 521: concave groove
522: insertion end 523: inlet groove
711: panel opening 721: receiving home
722: fixing protrusions 761, 761 ': bundle
A: Sandpaper a: Polishing Pad
B: Packing Box C: Waste

Claims (8)

And a cutting mold part 50 including an upper mold 51 for punching the sandpaper A moved to the lower mold 52 and cutting the sandpaper A into a polishing pad having a predetermined shape.
Upper mold 51
The center of the first blade 110 so that the first blade 110 is formed, and the inner blade is hollow, and the ends hitting the sandpaper A protrude downwardly from the first blade 110. Polishing pad manufacturing apparatus provided with a double blade comprising a; cutting module (100) having a second blade 120 is fixed to the hollow surface of (111).
The method according to claim 1,
The second blade 120 is a polishing pad manufacturing apparatus provided with a double blade, characterized in that screwed to the hollow surface of the first blade (110).
The method according to claim 1, the cutting module 100
Polishing pad manufacturing apparatus provided with a double blade further comprising; fastening means 130 for inserting and fixing the first blade 110 and the second blade 120 in communication.
The method of claim 3, wherein the second blade 120
An extension pipe 121 extending in one direction with a hollow inside;
A vertical plate 122 extended vertically from the opposite end of the extension tube 121 and in close contact with the rear surface of the first blade 110; And
Double pads are formed in the vertical plate 122 is fastening means 130 is fastening hole 125 is inserted; provided with a polishing pad manufacturing apparatus having a double blade.
The method according to claim 1, Uncoiler unit 80 for receiving the sand paper (A) in a rolled form, and supplying the stored sand paper (A) to the cutting mold unit 50 side;
A pressing die portion 60 which is moved up and down and presses the polishing pad a out of the sand paper A moved from the cutting mold portion 50;
A packing part 40 which receives the polishing pad a taken out from the pressure mold part 60 into a packing box B;
A coiler part 70 accommodating the sand paper A waste C from which the polishing pad a is drawn from the pressure die part 60 in a rolling form;
A control unit 10 for outputting a control command of the cutting die unit 50 to the coiler unit 70; And
A buzzer 30 which issues an alarm according to a failure, a high temperature, a fire, or the sand paper A of the uncoiler unit 80 by the control of the control unit 10;
Pressing mold unit 60
A pressure bar 61 having a horizontally extended area at the end of the supporting rod 611 downward from the lower surface and having an expansion plate 612 for pressing out the polishing pad a; And
A pair of guide bars 621 spaced apart from each other to support both ends of the sand paper A, and an inclined plate extending downwardly inclined between the guide bars 621 to guide the polishing pad a to the packing part 40. Polishing pad manufacturing apparatus having a double blade comprising a (622).
The method of claim 1, wherein the upper mold 51
A plurality of convex surfaces 511 protruding convexly from the lower surface of the second blade 120 so as to protrude downward through the hollow inner side of the second blade 120; And
And an installation groove 512 formed inwardly with respect to the convex surface 511 to form a space in which the cutting module 100 to which the first blade 110 and the second blade 120 are fastened is accommodated.
Lower mold 52
A concave groove 521 into which a convex surface 511 is inserted to form a curved surface inwardly from an upper surface thereof; And
An insertion end 522 which protrudes upward at a position corresponding to an outer edge of the concave groove 521 and is fastened to a spaced space between the convex surface 511 and the hollow surface of the second blade 120; And
An inlet groove 523 that forms a space in which the first blade 110 and the second blade 120 are inserted by forming a downwardly downward groove extending from the outside with respect to the insertion end 522.
Polishing pad manufacturing apparatus provided with a double blade.
The method of claim 5, wherein the packaging portion 40
A horizontal conveyor 41a for horizontally moving the polishing pad a drawn out by the pressure die 60 and an inclination for guiding the polishing pad a delivered through the horizontal conveyor 41a to the packing box B. FIG. A first conveyor 41 having a conveyor 41b;
A second conveyor 42 which sequentially moves the packing box B to a position at which the polishing pad a falls in the first conveyor 41;
A weight sensor 44 for sensing a weight of the packing box B in which the polishing pad a is accommodated in the second conveyor 42; And
And a third conveyor (43) for receiving the packing box (B) in which the polishing pad (a) is stored from the second conveyor (42) and moving it to a designated position.
The control unit 10
When the packing box B placed at the position where the polishing pad a falls from the first conveyor 41 according to the weight detection signal of the weight sensor 44 reaches the set weight, the buzzer 30 is operated to issue an alarm. and,
Driving the second conveyor 42 to move the packing box B containing the polishing pad a to the third conveyor 43 and to move the empty packing box B to the drop position; Polishing pad manufacturing apparatus having a double blade characterized in that.
The method of claim 5, wherein the coiler 70
A coiler driving motor 75 generating a rotational force according to a control command of the controller 10;
A rotating panel 71 fixed to the panel support plate 73 upright from the lower panel 74 so as to be rotated by the rotational force of the coiler driving motor 75;
A rotating shaft 72 extending horizontally from the center of the rotating panel 71 so that the sand paper A waste C is wound around the outer surface; And
And at least one string roller (76, 76 ') rotatably fixed at the back of the rotating panel (71) to supply the bundle strings (761, 761') of the waste (C).
The rotating shaft 72
One or more receiving grooves 721 inwardly received to receive the bundle strings 761 and 761 'withdrawn from the string rollers 76 and 76', and the bundle strings 761 and 761 'protrude from the inside of the receiving groove 721. It includes; fixing projections 722 for pressing and fixing),
Rotating panel 71 is a polishing pad manufacturing apparatus having a double blade comprising a; one or more panel openings (711) cut in order to withdraw the rear end of the bundle straps (761, 761 ') located on the back.

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