KR0149524B1 - Auto cutting machine of calendar holder - Google Patents

Abstract

The present invention relates to a calendar holder automatic cutting punching system which collectively processes the work of cutting corners and holes at predetermined positions of the calendar holder.

The present invention relates to a cutting and punching system of a holder for a calendar for performing a cutting and punching of a predetermined region of the upper and lower narrow regions of a calendar holder mold-injection-molded into a 'c' shape on a work table 10 by pneumatic pressure. Upper cylinders 20 on both sides being driven; It is coupled between each piston rod 21 of the upper cylinders 20, is raised and lowered with the piston rod 21, the upper cutter 63 for cutting edges and the punch body 71a for punching the center portion An operation frame 23 installed at the center portion; A lower cutter 64 for cutting and punching the corners and a lower body for punching in the center of the lower portion of the operating frame 23 is provided, and the pincers of the calendar holder for cutting and punching are separated and inserted up and down. It comprises a plurality of lower cylinders 30, each of which is fixed to the fixed frame 25 and the lower punch 33 is inserted into the lower side of the work table 10 to drill the lower pincer of the calendar holder.

According to the present invention, since the holder for a mold release extruded calendar is used, the process is simplified, the generation of defective products can be reduced to a very small amount, and the subsequent riveting process can be simplified.

Description

Automatic cutting and punching system of holder for calendar

1 is an exemplary perspective view for explaining a manufacturing process of a conventional calendar holder.

2 is a perspective view of the calendar holder before cutting and punching through the system according to the invention.

3 is a perspective view of the calendar holder after cutting and punching the calendar holder through the system according to the present invention.

4 is a cross-sectional view taken along the line A-A of FIG.

5 is a cross-sectional view taken along the line B-B in FIG.

6 is a perspective view schematically showing a system for automatically cutting and punching a holder for a calendar according to the present invention.

7 is a cross-sectional view showing the main portion of FIG.

8A to 8C are enlarged perspective views showing a partially enlarged cutter assembly according to the present invention.

9 is a perspective view of the main parts illustratively showing a state of insertion for processing a calendar holder into a cutting and punching assembly of a system according to the present invention.

10 is a flowchart illustrating a method for driving a system according to the present invention.

＊ Explanation of symbols on main parts of drawing

1: holder 3: narrow strip

5: hole 10: worktable

11: auxiliary support plate 13: control box

20: upper cylinder 21, 31: piston rod

23: operating frame 25: fixed frame

25a: long hole 30: lower cylinder

33: lower punch 40: first solenoid valve

50: second solenoid valve 60,70: cutting and punching assembly

61,73a: Punch Hole 63: Upper Cutter

65, 73: guide ball 65a, 73b: guide pin

67 air outlet 73c presser foot

The present invention relates to a calendar holder automatic cutting and punching system, and more particularly, to a calendar holder automatic cutting and punching system that collectively processes the process of cutting corners and holes in a predetermined position of the calendar holder.

The calendar holder is a riveting coupling to the upper cover of the calendar to bend the calendar in a bundled form, and to display the desired wall between the narrow areas fixed to the cover, and to hang the calendar on the wall. In order to firmly join the edge of the calendar holder, a hole is drilled on one side, and the hole is aligned with the hole formed in the upper edge of the cover of the calendar, and then coupled to the calendar through a levitating operation.

The conventional calendar holder is manufactured in a multi-step process of cutting a flat plastic compact into a predetermined width and length as shown in FIG. do.

However, in the conventional calendar holder 1 manufactured as described above, the hole formed on the narrowing zone 3 in which the holes 5 drilled in the bending process are not coincident with the calendar holes or formed to correspond to each other does not coincide with the center point. Because of this, it was impossible to automate the insertion of the calendar cover between the narrowing zones 3 and then to combine them with rivets. There is a problem that the calendar is not fixed effectively and falls down.

In addition, there is a problem that the productivity of the calendar holder is very low because the multi-step operation such as flat plate extrusion process, cutting and drilling process and bending process to be performed.

Therefore, the present invention has been invented to solve the problems caused by the occurrence of a number of defective products and a decrease in productivity until the work process coupled to the calendar by manufacturing a conventional calendar holder.

It is an object of the present invention to automatically cut a calender holder as a preliminary process to improve the work efficiency during the calender riveting operation after machining the hole at a desired precise position of the pincers of the calender holder to coincide with the edge hole of the calender. To provide a punching system.

The automatic cutting and punching system of the calendar holder according to the object of the present invention is a calendar for cutting and punching a predetermined area of the upper and lower narrow regions of the calendar holder which is injection molded in a 'c' shape on the work table 10. In the cutting and punching system of the holder, the upper cylinders (20) on both sides that are fixed by the support (12) respectively installed on the upper both sides of the worktable 10 and driven by pneumatic; The upper portion is coupled between each piston rod 21 of the upper cylinders 20, the upper and lower with the piston rod 21, the blade 63a for cutting the edge of the upper pincer of the calendar holder when lowered An operation frame 23 having a cutter 63 coupled to both ends, and having a punch body 71a having a punch 71 for forming a hole in the center of the upper pincer; Located in the lower portion of the operating frame 23, installed between the support 12 in parallel with the operating frame 23, coupled to the blade (63a) when the upper cutter (63) is lowered As a result, the lower cutters 64 having the blades 63b for cutting the corners are formed at positions of both ends corresponding to the upper cutters 63, respectively, and the punches 71 of the punch body 71a are lowered when the lower cutters 64b are lowered. And a lower body 73 which is in communication with the first punch hole of the upper part to be inserted and the second punch hole having a small diameter therethrough and is installed at a position corresponding to the punch body 71a, and is cut. And a fixed frame 25 into which the pincers of the calender holder for punching are inserted up and down and fixed to the auxiliary support plate 11 below the work table 10 and inserted into the second punch hole at an end of the calender. Lower lower jaw of holder The lower punch of the ball 33 is achieved by having a plurality of lower cylinders 30, each coupled.

Hereinafter, with reference to the accompanying drawings for the automatic cutting and punching system of the holder for a calendar according to the present invention will be described in detail.

Referring to FIG. 6, FIG. 6 is a perspective view schematically showing a cutting and punching system according to the present invention, in which a pneumatic hose connecting a pneumatic line is omitted for clarity. The following is a description of the system.

As shown in FIG. 6, the cutting and punching system according to the present invention is supported by the worktable 10 made of metal and by the support 12 at a predetermined height on top of the worktable 10, and operating frame 23. ), The upper cylinder 20 for operating the vertical direction, and the lower punch 33 fixed to the auxiliary support plate 11 at the lower side of the work table 10 and coupled to the end of each piston rod 31 in the vertical direction. A plurality of lower cylinders 30 to be operated by a second, a second solenoid valve 50 connected to a pneumatic hose (not shown) to control the operation of the upper cylinder 20 to control the air pressure, and an operation frame 23. And a cutting and punching assembly (60, 70) that is divided up and down respectively at both ends and the center of the lower fixed frame (25).

In addition, a pneumatic line is organically connected between the upper and lower cylinders 20 and 30 and the first and second solenoid valves 40 and 50, and each solenoid valve is provided with a pneumatic pressure supplied from a compressor (not shown). It is connected to the variable supply of the upper and lower cylinders (20, 30).

Referring to FIG. 7, FIG. 7 is a partial cross-sectional view as seen from the front, showing a partial cutaway view of the system of FIG. Each upper cylinder 20 is coupled to a certain height by a support 12 on top of the worktable 10, and when the passage to which pneumatic pressure is supplied by the first solenoid valve 40 is opened or closed, accordingly Each piston rod 21 is raised and lowered at the same time. At this time, the operation frame 23 coupled between the above-described respective piston rod 21 is raised and lowered together. Guide shafts 14 extending in the vertical direction are coupled to lower portions of both sides thereof so that the operation frame 23 is vertically lifted and lowered, and the guide shafts 14 are bearings 15 fixed on the work table 10. It is slidably attached to).

When the operation frame 23 is raised and lowered, one portion of a pair of punching and assembly 60, 70 is combined to punch and cut to cut and cut a hole for cutting the edge of the holder for calendar on the bottom thereof. The operation will be performed, but the detailed description will be described later in more detail.

The first solenoid valve 40 is configured such that the operation time is controlled by a relay built in the control box 13 shown in FIG. 6, and the upper cylinder 20 is operated by the operation of the first solenoid valve 40. Is working.

The first solenoid valve 40 supplies the pneumatic pressure to the upper cylinder 20 for the time set by the relay operation (0, 9 seconds) to drive the piston rod 21 of the upper cylinder 20 down, and then It is quickly switched to add reverse pneumatic to raise the piston rod 21 of the upper cylinder 20.

As this process proceeds, the operating frame 23 coupled to the end of the piston rod 21 of the upper cylinder 20 is driven. Then, the upper pincer 3 of the calendar holder 1, which is mold-injection-molded and fitted to the fixed frame 25 of the cutting and punching assemblies 60 and 70, is cut in the diagonal direction. At the same time, a hole 5 having a predetermined diameter is drilled in the central portion by the cutting and punching assembly 70.

When the upper cylinder 20 is raised to its original position, the second solenoid valve 50 is operated by an electrical signal applied from the control box 13 so that the pneumatic pressure introduced from the compressor is supplied to the plurality of lower cylinders 30, Accordingly, the piston rod 31 of the lower cylinder 30 is raised as shown in FIG.

The second solenoid valve 50 is also operated for a predetermined time by another relay configured in the control box 13 of FIG.

Therefore, when pneumatic pressure is supplied by the second solenoid valve 50, the piston rods 31 of the lower cylinder 30 are raised. At this time, the lower punch 33 is vertically extended to the end of each piston rod 31 is raised together with the piston rod 31.

The lower cylinder 30 is screwed to the long hole 11a formed on the auxiliary support plate 11 shown in FIGS. 6 and 7 so as to be adjusted to a desired position from side to side.

The lower punch 33 is raised by the rise of the piston rod 31 of the lower cylinder 30, and the calendar holder 1 fitted over the cutting and punching assemblies 60 and 70 by the raised lower punch 33. A hole is drilled at a predetermined position of the lower pincer 3 of.

After the raising operation of the lower cylinders 30 for drilling of the lower pincer 3 of the calendar holder 1, the second solenoid valve 50 is switched by the relay to supply reverse pneumatic pressure to the lower cylinder 30. , Piston rod 31 is lowered by the operation of the lower cylinder 30, and the work of drilling three holes simultaneously on one surface of the pincer 3 of the holder 1 for the calendar is completed.

8A-8C show an enlarged view of the cutting and punching assembly 60, 70 which is divided and fixed on the operating frame 23 and the fixed frame 25 as shown in FIGS. 6 and 7. As an enlarged perspective view, the upper and lower portions of the cutting and punching assemblies 60, 70, which are composed of a pair of sets, respectively, in the operating frame 23 and the fixed frame 25, as can be seen in FIGS. 8A to 8C. The cutting and punching assemblies 60 of FIGS. 8a and 8c, respectively, are symmetrically fixed to the operating frame 23 and the fixed frame 25, respectively, and are symmetrically coupled to each other and the functions thereof are also the same. The collective description will be made with reference to the drawings. In the cutting and punching assembly 60 shown in FIG. 8C, the same components as those in FIG. 8A are denoted by the same reference numerals, and detailed description thereof will be omitted.

Referring first to FIG. 8A, the upper component (upper cutter) of the cutting and punching assembly 60 is attached to the bottom of the operating frame 23 coupled to the piston rod 21 of the upper cylinder 20 described above. (63) is coupled to the bottom of the upper cutter (63) is formed with a blade (63a) formed in a diagonal direction (about 45 degrees) stepped downward, a pair of guide holes (65) spaced at regular intervals, The air outlet 67 is integrally formed.

The upper cutter 63 is screwed into the long hole 23a formed in the longitudinal direction on the operation frame 23 so as to be adjustable from side to side.

On the other hand, the lower cutter 64 to mate with the upper cutter 63 is fixed to the plane of the fixed frame 25 fixed to the plane of the work table 10 to the left and right to adjust the position in the ordinary bolt 25a in the long hole (25a) Although firmly fixed, it is located on the vertical line of the upper cutter 63 described above. In the lower cutter 64, a blade 63b parallel to the blade 63a of the upper cutter 63 is formed to be stepped downward, and a pair of guide pins 65a coupled to the guide hole 65 on the surface thereof. ) Is formed.

In this case, as shown in FIGS. 8A and 8C, the lower punch 33 of the cutting and punching assembly 60 has an end of the guide hole of the guide piece 64a of one portion of the cutting and punching assembly 60. A guide shaft 33a penetrating into another guide hole 64c formed adjacent to the guide hole 64b so that the lower punch 33 is correctly inserted into the punch hole 61. Is combined.

The lower cylinder 30 is screwed to the long hole 11a formed on the auxiliary support plate 11 shown in FIGS. 6 and 7 so as to be adjusted to a desired position from side to side.

In addition, the lower cutter 64 is provided with the punch hole 61 vertically penetrated on the plane and the guide hole 64b for guiding the lower punch 33 to be inserted into the punch hole 61 at the same position up and down. The lower punch 33 is configured to be inserted into the punch hole 61 through the guide hole 64b.

Therefore, when the upper cutter 63 is raised and lowered integrally with the operation frame 23 which is lifted and lowered by the upper cylinder 20, the blade 63a of the upper cutter 63 is lower than that of the lower cutter 64. Both edge portions of the upper pincer 3 of the calendar holder 1, which are interposed with the blade 64b and surround the lower cutter 64 portion where the punch holes 61 are formed, are cut diagonally.

At this time, at the moment when the lower cylinder 30 rises at the air outlet 67 of the upper cutter 63, the pneumatic pressure supplied to lower the upper cylinder 20 is discharged or the pneumatic pressure supplied to raise the lower cylinder is instantaneously released. This partially discharged blows off the edge of the cut holder. This is for effectively cutting other calendar holders to be subsequently cut.

Then, when the cutting of the edge of the upper pincer 3 of the calendar holder 1 by the upper cutter 63 described above is finished, punching of the lower pinch 3 by the raising of the lower punch 33 is performed. That is, the lower punch 33 coupled to the end of the cylinder rod 31 by the drive of the lower cylinder 30 is inserted into the punch hole 61 through the guide hole 64b, and in this process the punch hole 61 Holes are punched into the lower pincer 3 inserted in the lower portion of the back holder.

On the other hand, after the lower cylinder (30) the lifting operation, the second solenoid valve 50 switches the pneumatic passage so that the piston rod 31 is lowered by the relay in reverse. By the operation of the lower cylinder 30 as described above, the punching operation for forming a hole in one surface of the pincer 3 of the holder 1 for calendar is completed, and the above-described cutting and punching of the calendar holder 1 is performed. Other edges are subjected to the same cutting and lower punching as described above.

For reference, the insert of the calendar holder 1 of the lower cutter 64 was sharply processed so that the insert was smoothly inserted when the calendar holder 1 was inserted into the lower cutter 64 for cutting and punching.

The punching assembly 70 is provided with an upper body 71a and a lower body 73 on the bar and the operation frame 23 and the fixing frame 25 as shown in FIG. 8B, and the upper body 71a has an upper portion. The punch 71 is formed. On the bottom surface of the upper body 71a in which the upper punch 71 was formed, a pair of guide holes 74 spaced apart by a predetermined distance is formed. In the lower body 73 on the vertical line of the upper punch 71, a punch hole 73a having a diameter similar to that of the upper punch 71 is formed. In addition, a lower punch hole 61 having a smaller diameter is formed in the lower portion of the lower hole 73 in the punch hole 73a.

The lower body 73 is provided with a corresponding guide pin 73b inserted into the guide hole 74 adjacent to the punch hole 73a and has a predetermined gap in the upper portion of the punch hole 73a. The presser foot 73c which pinches the upper pincer 3 of the calendar holder 1 is formed.

Referring to FIG. 9, the calendar holder 1 is inserted into a portion where the presser foot 73c of the lower body 73 of the cutting and punching assembly 70 of FIG. 8B is formed, and the upper pincer of the calendar holder 1. (3) is punched out by the upper punch (71), and the lower pincer (3) is punched in the process of inserting the lower cutter (33) together with the lower cylinder (30) into the punch hole (61). In addition, the circular object cut by the lower cutter 33 is discharged into the hole 5 of the upper perforated narrowing jaw, and at this time, the lower punch 33 penetrates through the lower narrowing jaw with the support of the presser foot 73c and the upper portion thereof. When vertically penetrating the narrowing zone, the upper narrowing zone is prevented from being lifted so that the punched circular object is easily removed.

As described above, a method of manufacturing the calendar holder 1 using the automatic cutting and punching system of the holder for a calendar according to the present invention will be described. First, a calendar holder manufactured by release extrusion molding for cutting and punching operations ( The state cut to a certain length) is inserted into the upper cutter and the lower surface of the lower cutter 64 and the lower body 73 coupled to the fixed frame 25 so as to be in close contact with the inner surface of the pincer 3 of the holder 1. Then, when the automatic cutting and punching system of the calendar holder according to the embodiment of the present invention is driven as in the tenth degree, step I for cutting both ends and punching the center hole of the upper pincer 3 of the calendar holder 1 is performed. do. That is, the operation of the first solenoid valve 40 lowers the upper cylinder 20 during the relay setting time, and together with the operation frame 23 provided with the cutting and punching assemblies 60 and 70, the lowering together cuts and punches. Each of the upper and lower parts of the assembly 60 and the cutting and punching assembly 70 is coupled, and both ends of the upper holder 3 of the calendar holder 1 fitted to the lower cutter 64 are cut and punched assembly ( The intersection of the two blades 63a and 63b of 60 is chamfered diagonally, and the hole 5 is drilled in the center by the upper punch 71 of the cutting and punching assembly 70.

Then, in step I, a step II for drilling the hole in the lower pinhole 3 of the calendar holder 1 is performed after both the cutting of both edges of the upper pincer 3 and the punching in the center are performed at the same time. That is, each of the lower cylinders 30 is raised by the second solenoid valve 50 for a time set by the relay. Then, a corresponding portion of the lower pincer 3 of the holder covering each punch hole 61 of the cutting and punching assembly 60, 70 is connected to the lower punches 31 joined to the end of the lower cylinder 30. Through the holes, and as a result, three holes 5 are simultaneously drilled on both sides and the center of the lower pincer 3 of the calendar holder 1.

Through this process, the holder for the calendar supplied to the automatic cutting and punching system according to the present invention in the shape of FIG. 2 is cut and punched as shown in FIG. At this time, the tip portion of the lower cutter 63 and the lower body 73 is pointed so that the narrow strip 1 is easily inserted into the lower cutter 64 and the lower body 73 of the cutting and punching assembly 60, 70. The auxiliary work bench 10a as shown in FIG. 6 at a height similar to that of the lower cutter 63 and the lower body 73 provided on the upper portion of the work table 10 to be processed and to supply the calendar holder 1. ) Can be added.

As described above, the holder for a calender according to the present invention uses a calender holder extruded and molded in a 'c' shape in advance, so that if the bending process is omitted, the batch cutting and punching process is performed at the same position in the upper and lower narrow regions. Cutting and punching operations can reduce the occurrence of defective products to a very small amount. In addition, the riveting work is very easy and smooth after the punching of the correct position has a significant effect on improving productivity. In addition, the holder produced by the release extrusion has the effect of solving the problem that the calendar is easy to fall off because of excellent elastic force holding the calendar.

The cutting and punching system for a holder for a calendar according to the present invention is described above for illustrative purposes only, and it is expected that various applications and modifications may be made based on the present specification. For example, in the present invention, it is preferable to use a pneumatic cylinder in which the operating speed of the cylinder described above is faster than the hydraulic speed, and the hydraulic cylinder can be used to achieve the object, and the machining position according to the position and number of cutters. And only the punching operation may be performed without selecting the cutting water or without a cutter, and the operation of punching only one side or punching both sides of the pincer of the holder. In addition, the upper and lower cutters may be replaced, or the operating order of the upper and lower cylinders may be changed. As described above, it can be understood that the present invention can be implemented in various forms, but it is to be understood that the present invention is included in the scope of the technical spirit and scope intended by the inventors and the scope defined in the claims of the present specification.

Claims (10)

In the cutting and punching system of the holder for the calendar to perform the cutting and punching a predetermined region of the upper and lower narrow areas of the calendar holder is injection molding molded into a '' 'shape on the work table 10, Upper cylinders 20 on both sides that are fixed by the support 12 respectively installed on both upper sides and driven by pneumatic pressure; The upper portion is coupled between each piston rod 21 of the upper cylinders 20, the upper and lower with the piston rod 21, the blade 63a for cutting the edge of the upper pincer of the calendar holder when lowered An operation frame 23 having a cutter 63 coupled to both ends, and having a punch body 71a having a punch 71 for forming a hole in the center of the upper pincer; Located in the lower portion of the operating frame 23, installed between the support 12 in parallel with the operating frame 23, coupled to the blade (63a) when the upper cutter (63) is lowered As a result, the lower cutters 64 having the blades 63b for cutting the corners are formed at positions of both ends corresponding to the upper cutters 63, respectively, and the punches 71 of the punch body 71a are lowered when the lower cutters 64b are lowered. And a lower body 73 which is in communication with the first punch hole of the upper part to be inserted and the second punch hole having a small diameter therethrough and is installed at a position corresponding to the punch body 71a, and is cut. And a fixed frame 25 into which the pincers of the calendar holder for punching are inserted up and down separately. And a plurality of lower cylinders each having a lower punch 33 fixed to the auxiliary support plate 11 below the work table 10 and inserted into the second punch hole at an end thereof to drill the lower pincer of the calendar holder. 30); cutting and punching system of the holder for calendars. The guide shaft (14) of claim 1, wherein the piston rod (21) of the upper cylinder (20) extends downwardly perpendicularly to the bottom surfaces of both side ends of the operating frame (23) so that the piston rod (21) can be lowered in a vertical line. The cutting and punching of the holder for the calendar, characterized in that coupled to the lower end of the guide shaft 14, the guide bearing 15 for slidably receiving the guide shaft 14 on the work table (10). system. The lower cutter 63 and the lower body of claim 1, wherein the lower cutter 63 and the lower body are easily inserted into the lower cutter 63 and the lower body 73 when the pincers 3 of the calendar holder 1 are inserted into the lower cutter 63 and the lower body 73. The cutting and punching system of the holder for calendars, characterized in that the auxiliary worktable (10a) is laid at a height similar to the height of (73). According to claim 1, When the upper cutter 63 is coupled to the lower cutter 63, a pair of guide holes 65 in the bottom surface of the upper cutter 63 so that the blades (63a, 63b) are not shifted. And a guide pin (65a) coupled to the guide hole (65) on a plane of the lower cutter (64). The method according to claim 1, wherein a long hole (23a) is formed in the longitudinal direction of the operating frame to move the upper cutter (63) fixed on the operating frame (23) from side to side to a desired position. Cutting and punching system of the holder for the calendar, characterized in that configured to screw through the upper cutter (63) to a predetermined position through (23a). According to claim 1, Long hole in the longitudinal direction of the fixed frame 25 to selectively couple the lower cutter 63 and the lower body 73 fixed on the fixed frame 25 in the desired position ( 25a) is formed, the cutting and punching system of the holder for the calendar. The cutting and punching system of the holder for the calendar according to claim 1, characterized in that a long hole (11a) is formed to move from side to side on the auxiliary support plate (11) of the lower cylinder (30) and fix it in a desired position. . The method according to claim 1, wherein the pincers (3) of the calendar holder (1) are easily inserted into each of the lower cutters (64) coupled to the fixing frame (25) and the lower body (73) of the center portion. Cutting and punching system of the holder for the calendar, characterized in that the tip of the lower cutter (64) and the lower body (73) is pointed. The method of claim 1, wherein the operation frame 23 is lowered to cut and rise both edges of the upper pincer 3 of the holder 1, the air is supplied from the lower cylinder 30 is injected downward The cutting and punching system of the holder for the calendar, characterized in that the air discharge port (67) for removing the cut is formed downward on the bottom of the upper cutter (63). 2. The pincers of claim 1, wherein the pincers are removed when the circular objects of the upper pincers 3, which are coupled adjacent to the upper punch holes 73a of the lower body 73 and cut by the lower punches 33, are removed. Cutting and punching system of the holder for the calendar, characterized in that the presser foot (73c) for fixing the formed on the upper surface of the lower body (73).