KR200348365Y1 - Cutting device for polystyrene sheet - Google Patents

Abstract

The present invention relates to a polystyrene sheet cutting device for automatically cutting a polystyrene sheet to a predetermined length in a polystyrene sheet adhesive machine for thermally bonding a plurality of sheets of polystyrene sheets and adhering paper on both sides thereof. By improving the cutting edge of the cutter, the cutting blade formed on the cutter can be used at the same time, and the cutting part of the cutter can be changed quickly without interrupting the operation of the machine, or the cutter can be replaced quickly if necessary.

To this end, the frame 25 detachably mounted to the slider 19, the lifting block 26 coupled to the lifting and lowering on the frame, and is fixed to the lifting block with a fixed piece 27 detachably fixed Cutter 17, a lead screw 32 that is screwed to the lifting block coupled to the frame and rotates at the same time, a handle 33 fixed to the upper portion of the lead screw, and the lifting block is installed on the frame A pair of guide rods 34 for guiding this during the elevating, an elastic member 36 installed between the frame and the bottom of the elevating block to comfort the elevating block upward, and the frame is detachably mounted to the slider. It is composed of a mounting means.

Description

Cutting device for polystyrene sheet

The present invention relates to a polystyrene sheet adhesive machine for thermally bonding a plurality of polystyrene sheets and simultaneously adhering paper on both sides, and more specifically, a polystyrene sheet (hereinafter referred to as a "sheet") that is produced and sent to a delivery unit is defined. The present invention relates to a cutting device of a polystyrene sheet for automatic cutting to a length of.

Generally, polystyrene is shipped in the form of a roll on bobbins in the state of primary foaming, and the sheet shipped is thin so that it can be used for stationery, such as the back plate of a frame or the inside of an album cover. Since there is no use, a plurality of sheets are heat-sealed to have a predetermined thickness according to the use thereof, and then cut into a predetermined length.

The sheet is light in weight when printed on the attached paper by attaching paper on both sides, so it is widely used for advertising panels, commercial graphic displays, photo and painting sites, model making, exhibition panels, stage backdrops, and visual devices. The demand is soaring.

1 is a configuration diagram showing a conventional polystyrene sheet adhesive machine, the structure thereof is as follows.

A sheet supply unit 2 which hangs the sheet 1 wound in a roll shape according to the number of sheets to be fused, and a sheet alignment unit 3 for aligning a plurality of sheets supplied from the sheet supply unit in the same width so as to overlap each other; The first heating unit 4 for heating the sheet adhesive surface of the two sheets conveyed in a state aligned neatly from the sheet alignment unit, and the two sheets of the first heating from the first heating unit The second heating portion 5 to be heated or temporarily bonded and the first and second heated sheets from the first and second heating portions are heat-sealed, or the sheet to which two sheets are temporarily bonded and another sheet Both sides of the adhesive part 6 for heating and heat-bonding the adhesive surface at once, the molding part 7 for secondary foaming of the sheet heat-sealed by the adhesive part, and both sides of the sheet secondarily foamed to a predetermined thickness by the molding part. A paper adhesive part 9 for adhering the paper 8 to the upper and lower parts of the molding part; Upper and lower paper supply parts 10 and 11 installed to supply paper to the paper adhesive part, a quenching part 12 for quenching the heat remaining between the sheet and the paper while passing through the paper adhesive part, and the quenching function. A slow cooling portion 13 which gradually cools the sheet quenched at the portion as it passes, an edge cutting portion 14 for cutting the edges according to the specifications in a state where the paper is bonded by the paper bonding portion, and the edge cutting portion is fixed by the edge cutting portion. The sending part 15 which sends out the sheet cut | disconnected by the width, and the cutting part 16 which cut | disconnects the sheet sent out through the said sending part to a predetermined length are comprised.

Since the operation of the polystyrene sheet adhesive machine configured as described above is described in detail in the publication previously filed by the applicant and registered in Korean Patent No. 180,711, a detailed description thereof will be omitted and briefly described.

The sheet-feeding unit 2 is glued while passing two or three sheets 1 through the first and second heating units 4 and 5 and the bonding unit 6 as necessary, and then a plurality of sheets are bonded. When the paper 8 is attached to both sides of the paper, the paper is sent out to the delivery section 15. According to the purpose, the sheet is bonded by cutting the sheet to which the paper is bonded by a cutter (not shown) to a predetermined length. Done.

2 is a front view showing a conventional cutting cutter and FIG. 3 is a front view showing a state in which a conventional cutting cutter cuts a polystyrene sheet, and a cutter for cutting a finished sheet to a predetermined length in a cutting unit 16 which is a final process. 2 is formed in a substantially triangular shape as shown in Fig. 2 is provided with cutting edges 18 on each of the inclined surfaces on both sides, and a plurality of fastenings for fixing the cutter 17 to the slider 19 on the horizontal surface The ball 20 is formed.

The cutter 17 configured as described above is fastened to the slider 19 with a screw 21, and the slider is fixed on the timing belt 23 wound around the pair of pulleys 22 so as to be mounted on both sides between working processes. The paper 8 is waiting on its outside (left or right) so as not to interfere with the sheet 1 to which the paper 8 is bonded.

In this state, when the sheet 1 to which the paper 8 is adhered on both sides is sent out through the delivery unit 15 by a certain amount, the pusher (not shown) located on the upper side is lowered by the driving means to lower the sheet 1. Simultaneously with the pressing, the feeding speed of the sheet is constantly moved along the feeding direction of the sheet. At this time, the pulley 22 for feeding the slider 19 rotates.

When the pulley 22 rotates as described above, the slider 19 fixed to the pulley is cut along the direction perpendicular to the feeding direction of the sheet 1.

That is, when the slider 19 is moved to the left in the state in which the slider 19 is located on the right side of the sheet 1, the cutting blade 18 located on the left side of the cutter 17 cuts the sheet 1.

As the slider 19 moves to the left and the sheet 1 is cut off, the pulley 22 stops driving, so the pusher 24 holding the sheet 1 while the slider is positioned on the left side rises. At the same time it is reduced to the initial state.

After that, when the sheet 1 is continuously fed out and reaches the point of cutting, the pusher 24 is lowered again as described above to press the sheet and the pulley 22 is rotated at the same time. The cutting blade 18 located on the right side cuts the sheet 1 while 19 is moved to the right side in the drawing.

In this manner, whenever the slider 19 linearly moves along the cutting direction of the sheet 1, the sheet 1 is cut.

However, this conventional cutting device has the advantage of cutting the sheet 1 each time the slider 19 is transported in one direction (right or left) because the cutting blades 18 are formed on both inclined surfaces of the cutter 17. However, the following various problems have occurred.

First, since the cutter is attached to the slider by fastening the screw through the fastening hole formed in the cutter, the cutting position of the cutter cutting the polystyrene sheet with paper is always the same. The cutting edge is blunted only at the site (cutting position), so that the cutting surface of the sheet is roughened, and thus there is a defect in use that the cutter needs to be replaced even though the cutting edges of the remaining portions except the cutting position are not worn.

Second, in order to replace the cutter, it was necessary to stop the operation of the machine and at the same time to loosen several screws, replace the cutter, and then refasten the screw that was loosened.

The present invention has been made to solve such a conventional problem, and the object of the present invention is to improve the structure of mounting the cutter on the slider to extend the life of the cutter as much as possible by using a wide range of cutting blades formed on the cutter. .

Another object of the present invention is to quickly change the cutting part of the cutter without interrupting the operation of the machine, and at the same time to quickly replace the cutter from the slider as needed.

According to an aspect of the present invention for achieving the above object, a polystyrene sheet cutting device configured to cut a polystyrene sheet by attaching a cutter to a slider fixed to a timing belt, the frame detachably mounted to the slider, and the frame An elevating block coupled to the elevating block onto the elevating block, a cutter detachably fixed to the elevating block with a fixed piece, a lead screw coupled to the elevating block coupled to the frame, and simultaneously rotating in the frame; A handle fixed to an upper portion, a pair of guide rods installed on the frame to guide the lifting block when the lifting block is lifted, and an elastic member installed between the frame and the bottom of the lifting block to comfort the lifting block upward, and the frame Characterized in that the mounting means for detachably mounted to the slider An apparatus for cutting a polystyrene sheet is provided.

1 is a block diagram showing a conventional polystyrene sheet adhesive

Figure 2 is a front view showing a conventional cutting cutter

Figure 3 is a front view showing a state in which a conventional cutter for cutting a polystyrene sheet

4 is an exploded perspective view showing the configuration of the present invention

5 is an assembled perspective view of FIG.

6 is a rear perspective view of FIG.

7 is a longitudinal cross-sectional view of FIG.

8 is a perspective view of the present invention mounted on the slider

9 is a partial longitudinal cross-sectional view of FIG. 8;

Explanation of symbols for the main parts of the drawings

17 cutter 18 cutting blade

19: Slider 25: Frame

25a, 25b: upper and lower bent pieces 26: lifting block

29: mounting piece 30: locking block

32: lead screw 33: handle

34: guide rod 36: elastic member

37: locknut

Hereinafter, with reference to Figures 4 to 9 showing the present invention as an embodiment in more detail as follows.

Figure 4 is an exploded perspective view showing the configuration of the subject innovation and Figure 5 is an assembled perspective view of Figure 4 and Figure 6 is a rear perspective view of Figure 5, the subject innovation is a frame 25 in the slider 19 to the mounting means The lifting block 26 is coupled between the upper and lower bent pieces 25a and 25b formed on the frame so that the lifting block 26 can be lifted and detached and the cutting block 18 has a cutting blade 18 on the lifting block. ) Is detachably fixed by the fixing piece 27, and the fixing piece 27 is fixed to the lifting block 26 by the plurality of screws 28.

In one embodiment of the present invention, the mounting means for detachably installing the frame 25 to the slider 19 is fixed to the rear surface of the frame 25 as shown in FIGS. 8 and 9 and at the same time inclined to both sides and the bottom surface. (29a) and (29b), respectively, a mounting piece (29) formed in the shape of a dovetail, a latching piece (19a) (19b) formed on the slider (19) to catch each inclined surface, and an upper portion of the slider. The locking block 30 is rotatably installed at the locking block 30 connected to the upper surface of the mounting piece, and the locking block 30 is elastically installed at the hinge point of the locking block rotatably installed at the slider, and the locking block 30 is not applied to the locking block. ) Is composed of a torsion spring 31 which biases the mounting piece 29 side.

However, the mounting means is not limited to the frame 25 as long as it has a structure for attaching or detaching the frame 25 in a one-touch operation.

The lead screw 32 is screwed to the elevating block 26 while the elevating block 26 is assembled between the upper and lower bent pieces 25a and 25b of the frame 25. It is designed to rotate on the pieces 25a and 25b, and a handle 33 for rotating the lead screw is fixed to the upper part of the lead screw 32 so as to rotate together. The upper and lower bending pieces 25a and 25b Both sides are fixed to the guide rod 34 for guiding the lifting movement of the lifting block 26 by the rotation of the handle 33, the inside of the insertion hole into which the guide rod 34 is inserted bushing 35 Is fitted.

In addition, an accommodating space 26a is formed at the bottom of the elevating block 26, and an elastic member 36, such as a coil spring, is provided in the accommodating space to comfort the elevating block 26 upward. The elastic member 36 is supported by the lower bending piece 25b.

On the other hand, it is more preferable to take a locking means for holding the handle 33 to rotate the lead screw 32 so that the variable lifting block 26 does not move in a state in which the position of the lifting block 26 is changed.

In one embodiment of the present invention by such a locking means, the screw hole (25c) is formed in the upper bending piece (25a) of the frame 25 and the handle 33 in the center of the lock nut 37 screwed to the screw hole When the lock nut 37 is rotated in a state where the through hole 37a is accommodated to accommodate the shaft 33a of the shaft and the position of the lifting block 26 is changed by the rotation of the handle 33, the bottom surface of the lock nut is leaded. It is connected to the upper surface of the large diameter part 32a of the screw 32, and is comprised so that the handle 33 may not rotate.

Referring to the operation of the present invention configured as described above are as follows.

First, in the state in which the frame 25 coupled with the lifting block 26 is mounted on the slider 19 by the mounting means, as shown in FIG. 8, the locking block 30 presses the upper surface of the mounting piece 29 to lock. The cutter 17 in a state where the lifting block 26 is determined by the rotation of the handle 33 and the bottom surface of the lock nut 37 is pressed against the upper surface of the large diameter portion 32a of the lead screw 32. Since the cutting position of the sheet is not variable, whenever the sheet 1 to which the paper 8 is adhered on both sides is fed out through the feeding section 15, the slider 19 is in the left or right direction, which is perpendicular to the feeding direction of the sheet. The sheet 1 is cut to a predetermined length while moving along.

After the cutting blade 18 of the predetermined position (cutting portion) formed in the cutter 17 is worn in the above-described repetitive operation, the lock nut 37 is loosened while the slider 19 is in the standby position, and then the handle ( 33 is rotated clockwise or counterclockwise to change the position of the elevating block 26.

That is, when the knob 33 is rotated clockwise or counterclockwise to change the position of the elevating block 26, the lead screw 32 to which the knob is fixed also rotates in the same direction to lift the block 26 from the frame 25. ), The cutting position of the cutter 17 fixed to the elevating block 26 is variable because the predetermined amount is raised and lowered.

After the cutting position of the cutter 17 is changed by the rotation of the handle 33, the lock nut 37 that is loosened is tightened so that the bottom surface of the lock nut is connected to the upper surface of the large diameter portion 32a of the lead screw 32. By doing so, the handle 33 is not rotated arbitrarily.

As described above, the fine adjustment of the elevating block 26 may be performed at any time without interrupting the machine during the operation as the cutting blade 18 of the cutter 17 wears, thereby maximizing productivity.

After the entire section of the cutting blade 18 formed on both sides of the cutter 17 is worn out by the operation described above in the cutting process of the sheet 1, the cutter must be replaced. It is possible to replace the frame 25 to which the lifting block 26 is coupled from the slider 19.

That is, in the state where the slider 19 is waiting on the outside (left or right) so as not to interfere with the conveyance of the sheet 1, the sheet is fed out by a certain amount, and then the slider 19 is moved again to cut the sheet 1. Since it has a predetermined waiting time, at this point it is possible to quickly replace the frame (25).

Accordingly, when the slider 19 is moved and the sheet 1 is cut and then the standby point on one side is reached, the locking block 30 held by the upper surface of the mounting piece 29 by the restoring force of the torsion spring 31 is shown in FIG. 9. It is bent in the direction of the arrow to release the pressing state of the mounting piece (29).

Thereafter, simply pulling the frame 25 in the vertical direction, the inclined surfaces 29a and 29b formed on both sides of the mounting piece 29 come out along the engaging pieces 19a and 19b formed on the slider 19. Therefore, the frame 25 can be separated from the slider 19.

After removing the frame 25 from the slider 19 in the above-described operation, the slider 25 is flipped and the other frame 25 on which the new cutter 17 is mounted is reversed as described above. What is necessary is just to attach it to (19).

That is, when the inclined surface 29a of the mounting piece 29 fixed to the rear surface of the frame 25 coincides with the locking piece 19a formed on the slider 19, the bottom inclined surface 29b of the slider 19 is lowered. The frame 25 does not flow in the horizontal direction of the slider 19 by being caught by the engaging piece 19b formed at the bottom, and in this state, the external force from the locking block 30 compressing the torsion spring 31 is removed. When the locking block 30 is restored to the initial state, the upper surface of the mounting piece 29 is pressed to maintain the initial state where the frame 25 is not detached from the slider 19 so that the sheet 1 can be continuously cut. Will be.

As described above, the present invention has several advantages as compared to the conventional cutting device.

First, it is easy to change the cutting edge position of the cutter even if you are not a skilled worker because it is possible to freely change the height of the lifting block equipped with the cutter from the frame without stopping the operation of the machine while the machine is running. It is possible to maximize the life of the cutter, thereby reducing the cost of purchasing the cutter.

Second, even when the cutter blade is worn out as a whole and the cutter is to be replaced, the polystyrene sheet does not have to stop the operation of expensive equipment because the holder is detached from the slider by one-touch operation without stopping the operation of the device. To maximize productivity.

Claims (3)

A polystyrene sheet cutting device configured to cut a polystyrene sheet by mounting a cutter on a slider fixed to a timing belt, the apparatus comprising: a frame detachably mounted to a slider, an elevating block coupled to the elevating frame on the frame, and the elevating block; A cutter detachably fixed to a block by a fixing piece, a lead screw that is screwed to a lifting block coupled to the frame and rotates in the frame, a handle fixed to an upper portion of the lead screw, and installed on the frame It consists of a pair of guide rods for guiding this during the lifting of the block, an elastic member which is installed between the frame and the bottom of the lifting block to comfort the lifting block upward, and mounting means for detachably mounting the frame to the slider. A cutting device for polystyrene sheets. The method of claim 1, Locking means is further provided to form a through hole in the center of the lock nut so that the shaft of the handle is accommodated and screwed the lock nut onto the frame so that the bottom surface of the lock nut is connected to the upper surface of the large diameter portion of the lead screw Cutting device for polystyrene sheet, characterized in that. The method of claim 1, The mounting means is fixed to the rear surface of the frame and at the same time on both sides and the bottom inclined surface in the form of a dovetail, respectively, the engaging piece formed on the slider and the respective inclined surface is caught, rotatably installed on the top of the slider And a locking block which is connected to the upper surface of the mounting piece, and a torsion spring that is elastically installed at the hinge point of the locking block that is rotatably installed on the slider, and that biases the locking block toward the mounting piece in the state that no external force is applied to the locking block. Cutting device for polystyrene sheet, characterized in that.