KR100551946B1 - Cutting Apparatus In Tube Sealing System - Google Patents

Abstract

The present invention relates to a device for cutting the remaining portion of a sealed tube in a system for filling and sealing the contents into a tube of a synthetic resin, and the mount (sliding bed) equipped with a motion cutter is provided by an LM rail / block. Reciprocating forward and backward on the main body improves straightness and parallelism (ultimately, accuracy) .Mounting for cutting because the mount (fixed bed) with the fixed cutter is coupled to the main body of the device by the elastic force of the compression spring. When the cutter and the fixed cutter are coupled to each other, even if a tolerance exists between the two cutters, it can be easily combined to enable a smooth cutting operation and reduce the wear of the cutter. In addition, the guide guide is mounted on the sliding bed to position the tube in place when cutting the tube, in particular, it is possible to further lower the defective rate of the product, especially when cutting the corner trimming that requires precise cutting.

Description

Cutting Apparatus In Tube Sealing System

FIG. 1A is a schematic diagram of a cutting device of the prior art, and FIG. 1B is an enlarged view of the sealing portion when the cutting is performed with the tube deflected;

2 is a schematic view of a cutting device according to one embodiment of the present invention;

3 is a schematic diagram according to one embodiment of an LM rail / block that may be used in the cutting device of the present invention;

4 is a front view, a plan view and a side view of a motion cutter which can be used in the cutting device of the present invention;

5 is a front view, a plan view and a side view of a fixing cutter in the cutting device of the present invention;

Figure 6 is a schematic diagram of the coupling state of the motion cutter of Figure 4 and the fixed cutter of Figure 5 when cutting the tube;

Figure 7a is an enlarged view of the coupling portion in the conventional cutting device, when the motion cutter and the fixed cutter is coupled, Figure 7b is an enlarged view of the coupling portion of the cutting device according to the present invention;

8 is a schematic diagram of a guide guide according to one embodiment that can be used in the cutting device of the present invention;

9 is a plan view and a side view of the guide guide of FIG. 8 mounted to the sliding bed;

FIG. 10 is a schematic diagram of a state in which the guide guide of FIG. 8 is coupled to the cutting device of FIG. 2.

Description of the main symbols in the drawings

100: cutting device 200: main body

300: operating lever 400: motion cutter

500: sliding bad 600: fixed cutter

700: fixed bad 800: LM rail / block

900: Guide Guide 1000: Tube

The present invention relates to a device for cutting the remaining portion of the sealed tube in a system for filling and sealing the contents of the tube of the synthetic resin, and more particularly, the sliding bed including the motion cutter comprises the LM block and the rail It improves straightness, parallelism and durability by operating in horizontal motion, and the fixed bed including the fixed cutter is mounted on the main body through the mold spring to reduce the error range of the cutter and the fixed cutter during cutting operation. It provides an improved cutting device that can prevent the.

In general, the content filling tube used in cosmetics, household goods, etc. is generally filled with a cylindrical synthetic resin molding, and supplied with hot air at its end to make it semi-melted, and then bonded to each other to seal it. And a so-called tube sealing system which cuts and manufactures the remaining part of the sealing. The tube sealing system consists of a combination of several devices capable of carrying out this series of processes, one of which is a cutting device for cutting the remaining portion of the sealed tube.

A representative example of a cutting device in a tube sealing system is shown in FIG. 1A. Referring to FIG. 1A, the cutting device 10 includes a horizontal shaft 51 having a hinge 21 formed thereon to which the operating lever 30 can be coupled axially and extending from the movement cutter mount 50. Fixed " 22 " for guiding to move forward and backward is approximately " ?? " Corresponding position of the motion lever 30 of the shape, the motion cutter mount 50 which is coupled to one end of the operation lever 30 and includes the motion cutter 40 toward the front, and the advanced motion cutter 40. It comprises a fixed cutter mount 70 that includes a fixed cutter 60 in the. Therefore, when the operation lever 30 is moved with the end of the sealed tube 80 filled with contents (not shown) positioned in front of the fixed cutter 60, the motion cutter mount 50 moves forward and Accordingly, the motion cutter 40 is engaged with the fixed cutter 60 to cut the remaining portion of the sealing tube (80). When cutting the remaining portion of the sealed tube 80, generally, both side ends (corner 81) of the cut tube 80 are made in a sharp shape, and as shown in FIG. Trimming is performed simultaneously with cutting.

However, this cutting device 10 has some problems.

First, since the forward and backward reciprocating motion of the motion cutter 40 is made by the operation of the shaft 51 of the motion cutter mount 50 and the fixed guide part 22 (which includes a bush) of the main body 20. In addition, since the fatigue due to repeated operation is easy to wear and the precision is low, ultimately the problem of high product failure rate and cutter wear rate occurs.

Second, when the tube 80 is placed in the fixed cutter 60 and then cut by the motion cutter 40, the tolerance between the tube holder and the motion cutter 40 which keeps the tube 80 in place is large. Since the eccentricity of 80 is high, in particular, as a result of the corner trimming, a problem arises in that one side end portion 82 is not properly rounded as shown in Fig. 1B.

Third, in general, since the film layer of the micron unit is coated to prevent the appearance and scratches of the tube 80, the combined tolerance of the motion cutter 40 and the fixed cutter 60 is 2/100 mm or less for clean cutting. The cutting device 10 of the related art does not reflect the precision machining that maintains the cutting device 10, and the coupling tolerance is set to a negative value to solve the poor cutting, thereby causing problems of impact and wear when the cutters are coupled to each other.

Accordingly, an object of the present invention is to provide a cutting device that can solve the problems of the prior art and the technical problem that has been requested from the past.

Specifically, a first object of the present invention is to provide a cutting device that improves the straightness and parallelism (ultimately, precision) when the mount on which the motion cutter is mounted reciprocates back and forth along the apparatus body.

The second object of the present invention is to provide a cutting device that enables smooth cutting operation and reduces the wear of the cutter, even when a tolerance exists between the two cutters when the motion cutter and the fixed cutter are coupled to each other for cutting. To provide.

It is a third object of the present invention to provide a cutting device in which the tube is placed in place when cutting the tube, and in particular, lowering the defective rate of the product during corner trimming, which requires precise cutting.

Cutting device of the present invention for achieving this object,

A main body having a hinge formed thereon to which the operating lever can be coupled axially, an actuating lever having a "b" shape moving axially connected to the hinge of the body, coupled to one end of the operating lever and moving toward the front And a mount including the fixed cutter at the corresponding position of the advanced motion cutter (hereinafter abbreviated as " fixed bed "). In the cutting device for repeatedly performing the operation of cutting the remaining portion of the sealing tube located on the fixed cutter by the advance of the motion cutter,

An LM rail is formed or attached to a lower portion of the main body of the apparatus in parallel to the traveling direction of the motion cutter, and an LM block capable of moving back and forth along the LM rail is formed or attached to an upper portion of the sliding bed. The sliding bed is characterized by being able to move back and forth toward the fixed cutter by the LM block moving along the rail.

Thus, the sliding bed can reciprocate back and forth steadily and precisely along the LM rail of the lower part of the apparatus main body, so that the correct cutting position can be set despite the continuous repetitive work.

As used herein, the term "LM rail" means a member that extends in parallel in the longitudinal direction, and the term "LM block" means to move forward and backward along its longitudinal direction at least partially enclosing the LM rail. It means a member that can. Therefore, the form is not particularly limited as long as it can guide the precise forward and backward motion as described above, and the structure disclosed in FIG. The LM rail / block of FIG. 3 will be described in more detail later.

The remaining portion of the sealed tube end is cut while the moving motion cutter is engaged with the fixed cutter, and the engagement state of the two cutters may be incomplete due to the result of the continuous cutting operation or the tolerance of the mounting position of the parts. This causes wear of the cutter. In the cutting device of the present invention, preferably, in fastening the fixed bed to the main body of the device, a compression spring is inserted into the fastening groove of the fixed bed, and one end of the compression spring faces at least a part of the main body and The fixed bed is configured to be mutually coupled by a fastening member in a state spaced at a minute interval. Therefore, even if a slight up and down position error occurs in the process of engaging the motion cutter with the fixed cutter, the position correction can be automatically performed by the elasticity of the compression spring, buffering the fatigue by the repeated cutting process.

Preferably, a guide guide for resetting the tube to the fixed position of the fixed cutter is further included in the lower portion of the movable cutter mounted on the sliding bed, before cutting by the combination of the movable cutter and the fixed cutter. The rigid both sides of the sealing tube are moved to the center of the fixed cutter by the guiding guide to be advanced so that the cutting can be made at the correct position. This guide guide, in particular, helps to carry out the corner trimming in the correct position. The shape of the guide guide is not particularly limited as long as it can perform the above-described action, and preferably consists of two arms with a width of the sealing surface of the sealing tube, and at least the front end of the arm is located in front of the motion cutter. It is mounted on a sliding bed.

The motion cutter and the fixed cutter are configured to simultaneously cut the remaining portions of the sealing tube horizontally while cutting the both ends of the sealing tube in a tapered shape while cutting the round.

Hereinafter, a cutting device according to one embodiment of the present invention will be described with reference to the drawings, but the scope of the present invention is not limited thereto. For reference, the drawings attached to the present specification are shown in perspective as necessary to more expressly express the coupling and operation relationship of each component.

2 is a schematic diagram of a cutting device according to an embodiment of the present invention. The cutting device 100 includes a main body 200, an operation lever 300, a sliding bed 500 on which the motion cutter 400 is mounted, a fixed bed 700 on which the fixed cutter 600 is mounted, and the like. have.

The hinge 210 is coupled to the upper portion of the main body 200 can be coupled to the operating lever 300 in the axial, the fixed bed 700 is coupled to the lower left. In addition, an LM rail 810 for guiding the forward and backward reciprocation of the sliding bed 500 is coupled to the center lower portion.

The operation lever 300 is axially connected to the hinge 210 of the main body 200, thereby changing the vertical movement of one end 302 to the horizontal movement at the end 304 to which the sliding bed 500 is coupled. .

The sliding bed 500 is provided with a motion cutter 400 at the front lower end thereof, and the LM block 820 is installed at the upper portion thereof so that the LM block 820 may move the LM rail 810 below the main body 200. As a result, the reciprocating motion can be performed stably and uniformly.

The fixed bed 700 includes a fixed cutter 600 at a corresponding position of the advanced motion cutter 400. In addition, the groove 710 is formed in a portion in the direction of the main body 200 and the compression spring 720 is mounted to the groove 710 with one end thereof facing the main body 200, and the compression spring ( As the long bolt 730 penetrating the inside of the 720 is fastened to the nut 210 on the main body 200, the fixed bed 700 is coupled to the main body 200 with a fine spacing. Therefore, by the coupling through the compression spring 720, when the motion cutter 400 is advanced to couple to the fixed cutter 600, even if there is a minute position error ("tolerance") can be cut in place. It provides a buffering effect to the fixed bed 700, and eliminates the fatigue caused by the repeated cutting operation.

Cutting of the sealing tube 1000, the movement cutter 400 and the fixed cutter 600 by the advance of the sliding bed 500 in a state where the sealing portion 1010 of the tube 1000 is located in the fixed cutter 600. It is done while being engaged.

3 shows a structure according to one embodiment of an LM rail / block that may be used in the cutting device 100 of FIG. 2. Referring to FIG. 3, the LM rail / block 800 includes an LM rail 810 extending in parallel with a moving direction of the motion cutter, and an LM block that is moved back and forth in a state in which at least a portion of the LM rail 810 is wrapped. 820. The LM rail 810 is installed at the bottom of the main body (200 of FIG. 2), and the LM block 820 is installed at the top of the sliding bed (500 of FIG. 2). For convenience of description, in FIG. 3, the upper and lower sides of the actual position are reversed and partially expressed in order to clearly express the coupling relationship.

The LM rails 810 are formed with grooves 812 and 814 that are continuous in the longitudinal direction on both sides and the top thereof, respectively. The LM block 820 has an inner surface formed to engage with the grooves 812 and 814 formed on both sides and the top of the LM rail 810 so that the LM block 820 is fastened to the LM rail 810 once. When the stable coupling is secured, the forward and backward motion of the LM block 820 is precisely controlled. In some cases, the LM block 820 is composed of two assembly members 822 and 824, and these assembly members may be placed on the LM rail 810 to be mutually coupled by the fastening member 826. have. In addition, small bearings (not shown) may be further included at a contact portion of the LM rail 810 and the LM block 820 to prevent generation of excessive frictional heat due to the continuous forward and backward motion. 3 illustrates a configuration in which the LM block 820 surrounds the outer surface of the LM rail 810, but in some cases, the reverse configuration is also possible.

4 and 5, the front view, the top view and the side view of the motion cutter and the fixed cutter, respectively, and FIG. 6 shows a schematic diagram of the coupling state of the tube when the tube is cut.

Referring to FIG. 4, the motion cutter 400 has both side portions 410 protruding toward the front and the center portion 420 is indented. Thus, the cutting proceeds from both side portions 410 toward the center portion 420. Referring to FIG. 5, the fixed cutter 600 has a knife 610 formed at an upper end thereof in a state where a sealing end of a tube (not shown) is located, and both ends 612 of the knife 610 are rounded. It is. Referring to FIG. 6, when the motion cutter 400 moves forward to be coupled with the upper surface of the knife 610 of the fixed cutter 600, cutting of the remaining portion of the tube is performed.

In Fig. 7a, when the two cutters 400, 600 as shown in Fig. 6 are combined, a coupling part of the conventional cutting device is shown, and Fig. 7b is a coupling part of the cutting device according to the present invention. In the conventional cutting device, the rounding radius of both ends 612 of the fixed cutter knife 610 and the rounding radius (for example, R3.0) of the corresponding portion of the motion cutter are the same. However, it is necessary to accommodate this change, since the sealing length of the tube generally depends on the standard deviation of the inner and outer diameters of the tube and the difference in the state of the semi-melt. Accordingly, in the cutting device of the present invention, as shown in FIG. 7B, both ends of the knife 610 of the fixed cutter 600 have the lower end of the round processing part of the motion cutter 400 to have a size of about 1/2 of the deviation of the sealing length to be accommodated. Spaced from 612.

FIG. 8 shows a guide guide according to one embodiment that can be used in the cutting device of the present invention. FIG. 9 shows a plan view and a side view of the guide guide mounted on the sliding bed, respectively. The schematic diagram of the state in which the said guide guide is couple | bonded with the cutting device of FIG.

Referring to FIG. 8, the guide guide 900 includes two removable symmetric arms 910 and 920. The left arm 910 has an inner surface outwardly as an end of the fastening portion 912, the body portion 914 extending from the fastening portion 912, and the body portion 914 coupled to the sliding bed (500 of FIG. 9A). The tapered tip 916 is formed. The right arm 920 also includes a fastening part 922, a body part 924, and a tip 926 corresponding to the left arm 910.

Referring to FIG. 9, the guide guide 900 is installed at the bottom of the sliding bed 500 so that its tip portions 916 and 926 face forward. At least a portion of the guide guide 900 installed in the sliding bed 500 protrudes from the front surface of the sliding bed 500, and as shown in FIG. 10, protrudes from the front surface of the motion cutter 400. Accordingly, as shown in FIG. 10, when the sliding bed 500 is advanced to cut the tube 1000, the left and right arms of the guide guide 900 wrap the outer surfaces of the rigid sealing portions of the tube 100 so that the tube is closed. To position the fixed cutter 600 in the correct position.

The width of the guide guide 900 surrounding the outer surface of the rigid sealing portion of the tube 1000, that is, the width of the left arm 910 and the right arm 920 can be adjusted according to the type of tube sliding bed ( It can also be installed at 500). Referring to FIG. 9, the guide guide 900 is installed on the sliding bed 500 so that the gap is adjusted by the adjusting screw 510.

Those skilled in the art to which the present invention pertains will be able to make various applications and modifications within the scope of the present invention based on the above contents.

The cutting device of the present invention can improve the straightness and parallelism (ultimately, precision) since the mount (sliding bed) on which the motion cutter is mounted is reciprocated back and forth on the main body of the device by the LM rail / block. Mounting (fixed bed) is coupled to the main body of the device by the elastic spring of the compression spring, so when the motion cutter and the fixed cutter are combined with each other for cutting, the tolerance can be easily combined even if the tolerance exists between the two cutters. It enables the work and reduces the wear of the cutter. In addition, the guide guide is mounted on the sliding bed to position the tube in place when cutting the tube, in particular, it is possible to further lower the defective rate of the product, especially when cutting the corner trimming that requires precise cutting.

Claims (5)

The main body has a hinge to which the actuating lever is axially coupled, the "a" shaped actuating lever moving axially connected to the hinge of the main body, is coupled to one end of the actuating lever and moves the motion cutter toward the front. It includes an included mount (sliding bed) and a mount (fixed bed) containing a fixed cutter at a corresponding position of the advanced motion cutter, so that the remaining portion of the sealing tube located on the fixed cutter is moved forward of the motion cutter. A cutting device on a tube sealing system, which repeatedly performs a cutting operation by An LM rail is formed or attached to a lower portion of the main body of the apparatus in parallel to the traveling direction of the motion cutter, and an LM block capable of moving back and forth along the LM rail is formed or attached to an upper portion of the sliding bed. And the sliding bed can move back and forth toward the fixed cutter by the LM block moving along the rail. 2. The fastening of the fixed bed to the apparatus main body according to claim 1, wherein a compression spring is inserted into a fastening groove of the fixed bed, one end of the compression spring faces at least a part of the main body, and the main body and the fixed bed are minutely spaced. Cutting device, characterized in that configured to be coupled to each other by a fastening member in a spaced apart state. The cutting device according to claim 1, further comprising a guide guide for resetting the tube to the fixed position of the fixed cutter at the bottom of the motion cutter mounted on the sliding bed. 4. The cutting device according to claim 3, wherein the guide guide is composed of two arms spreading the width of the sealing surface of the sealing tube, and at least the front end of the arm is mounted on the sliding bed so as to be located ahead of the motion cutter. The method according to claim 1, wherein both ends of the knife of the fixed cutter for cutting the sealing tube is rounded and both ends of the motion cutter are rounded to correspond thereto, and the lower end of the round processing part of the motion cutter is fixed to the fixed cutter. A cutting device, characterized in that spaced apart from both ends of the round processing portion of the knife to the size of about 1/2 of the receiving length deviation of the sealing tube.

Images