KR20180056011A - Cutting Groove Forming Apparatus for Use in Packing Bag - Google Patents

Abstract

The present invention relates to an apparatus for forming a cutting groove of a packing stand. The present invention allows a continuous cutting groove to be formed in a heat bonding unit of a packing stand discharged from a sealing roller by a pair of blade units operated by reciprocating force converted from continuous rotation. Further, according to the present invention, in the case of defective packing which is chewed by the sealing rollers, a defective packing portion is immediately detected and is cut off by the blade unit. Therefore, the present invention makes it possible to proceed a cutting groove forming operation for the following packing stand speedily without any interruption.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cutting-

The present invention relates to a heat treatment apparatus and a method of manufacturing a heat insulating sheet for heat sealing each partition portion of a packaging bag for hygienic continuous packaging for a product such as a disposable spoon, disposable chopsticks, straw, and toothpick (hereinafter referred to as " To a cutting slot forming apparatus for a package to be used for forming a weak line for facilitating the cutting of a packing stand on a bonding portion.

Particularly, it is possible to continuously form the cutting grooves provided in the thermal bonding portion of the package stand, which is discharged from the sealing roller, by a pair of knife portions operated by the reciprocating movement force converted from the continuous rotary movement, It is possible to promptly detect the defective packaging and to cut off the defective packaging portion by the blade portion so that the cutting groove forming operation for the subsequent packaging bag can be continuously performed without interruption To a cutting groove forming apparatus for a package.

Generally, the wrapping machine of the wrapped material is made by wrapping the wrapping paper (paper) or vinyl paper rolled up in the winder, and the product is inserted between the vinyl paper or paper, and the wrapping material and the wrapping material are thermally bonded It is well known that vinyl paper or paper are adhered to each other to hygienically wrap the packages so that a continuous band-shaped package is manufactured.

In order to enable the consumer to cut and use the packaging sheet so long, a weak line is formed in the thermal bonding portion formed between the to-be-wrapped material and the package, Most of the product packaging machines are equipped with a cutting groove installation machine which forms cutting grooves in the thermosetting part of the wrapping paper or wrapping paper.

One example of such a packaging stand is disclosed in Japanese Patent No. 10-1173844. This prior art is filed by the present applicant and patented. The cutting device is a state in which the cutting blade is housed in the outer circumferential surface of a cylindrical rotary drum and is in contact with the heat bonding portion of the continuously conveyed package, And a cutting groove is formed in the thermal bonding portion.

However, in the prior art as described above, the cutting blade supports the packaged articles of the packing stand in a state in which they are respectively accommodated, and the cutting blade is brought into contact with the heat bonding portion between the package and the article to be packed, It is disadvantageous in that the installation speed of the cutting grooves is reduced and the productivity is lowered accordingly.

Particularly, in the case of the above-mentioned prior arts, in the case where defective packing is generated due to defective packaging position due to sealing rollers due to defective packaging position, defective products are prevented from being packed in a product packaging box or packaged like a product , It was necessary to operate the packing machine again after removing the defective part while the entire operation of the packing machine system was stopped. The removal of these defective products overall slowed down the speed of the packaging machine and, as a result, became a major factor in lowering productivity.

On the other hand, there is a cutting apparatus which is applied and registered by the applicant of the present invention and cuts the packing bag by the two blade portions. However, this cutting apparatus is not continuous due to the upward / downward fluctuation of the curved trajectory of the receiving portion by the cam mechanism However, there is a problem that the stability is lowered due to the cutting operation due to the upward and downward fluctuations,

Particularly, in the case of this prior art, if the packing failure of the packaging material due to the packaging position of the packaging material causes the packing failure to be chewed from the sealing rollers, the same problem as in the above-mentioned Patent Document 1 is generated.

Therefore, the development of a cutting groove forming apparatus that enables the cutting groove installation work to be installed on the heat bonding portion of the packing bag discharged from the sealing roller of the packaged packing machine to operate the machine operation itself at the same speed without stopping even in the case of a defective product It is demanded desperately.

KR Patent Registration No. 10-1173844 KR Registration No. 20-0267006

The present invention has been developed to overcome the above-described problems of the prior art and to provide various additional advantages. It is an object of the present invention to provide a cutting- And it is an object of the present invention to provide a cutting slot forming apparatus for a package which improves the productivity by making it possible to continuously carry out cutting grooving work without stopping the machine operation even when a poor package is generated.

The above object is achieved by a cutting groove forming apparatus of a package stand provided according to the present invention.

According to an aspect of the present invention, there is provided an apparatus for forming a cutting groove in a thermally adhering portion of a packaging bag which is continuously packed while being thermally adhered to each other by a pair of seal rollers, Wherein the movable blade and the fixed blade are disposed in a state where they face each other in the conveying path of the package, and the movable blade is in contact with the fixed blade on the entirety of the thermal bonding portion positioned between the movable blade and the fixed blade A blade portion for forming a cutting groove by a generated pressure; And a moving blade reciprocating means provided on one side of the blade to be connected to the moving blade and driven by a cam shaft to move the moving blade to contact with the fixed blade or to the separated position so as to form a cutting groove in the thermally adhered portion, ; The moving blade is moved in a state of receiving the driving force of the moving blade reciprocating means to couple the leading end of the movable rod to the moving blade side and when the movable rod is extended as in the operation of the moving blade reciprocating means, A first cylinder for applying a pressing force that allows the thermally adhered portion to be cut forward; A second cylinder which is integrally coupled to the first cylinder and is fixed to and supported by the moving blade reciprocating means to give a force to retract the moving blade from the fixed blade to keep the moving blade away from the fixed blade, ; And a deflecting unit for detecting a deflection generated due to the defective packaging of the product from the seal rollers by being fixed to a base supporting the seal rollers, The second cylinder is controlled to be retracted so as to be in a state of being separated from the fixed blade so as not to be in contact with the stationary blade, and after the defective packaging portion has passed, the second cylinder is controlled to return to its original position, And a control means for cutting the region.

In one embodiment, the moving blade reciprocating means includes a camshaft rotatably supported by a base, a camshaft coupled to the eccentric cam portion of the camshaft via a bearing, and extending to a position adjacent to the moving blade, And a moving blade guiding means provided on the moving blade for reciprocating movement to either one of the reciprocating moving body and connected to the moving blade only .

According to another embodiment, the moving blade guiding means is composed of guide grooves integrally formed with the movable body, and guiding grooves coupled to the moving blade to be slidably reciprocated in the guiding grooves.

According to another embodiment of the present invention, the control means includes a displacement detection sensor fixed to a base for supporting the seal rollers and detecting a displacement of the seal rollers, and a displacement sensor provided on the base, And a PLC controller for cutting off the defective packaging portion while controlling the second cylinder so that the defective packaging portion can be separated and discharged.

According to another embodiment of the present invention, the fixed blade fixing portion includes a fixed shaft fixedly supported on the base, and support side plates extending forward from both ends of the fixed shaft to provide a space for supporting both ends of the fixed blade, And guiding members provided at both ends of the side plates for guiding and having guiding grooves slidably engaged with guide bars provided at both ends of the reciprocating movable body, And is formed in a saw-tooth shape suitable for formation of the teeth.

According to the present invention, it is possible to provide an effect that the cutting groove installation work on the packing stand can be stably performed by the pair of knife portions,

In addition, even when a defective package is generated, the cutting groove setting operation can be continuously performed without interruption, thereby giving an effect of eliminating the factor of the productivity deterioration.

1 is a schematic view of a product packaging machine to which a cut groove forming apparatus according to the present invention is applied,
FIG. 2 is a perspective view showing only a cutting groove forming apparatus 100 according to the present invention installed in FIG. 1,
Fig. 3 is a plan view of Fig. 2,
Fig. 4 is a perspective view showing only the cutting blade portion of Fig. 3,
Fig. 5 is a side view of Fig. 3 as viewed in the direction of arrow A. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a cutting groove forming apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail.

It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. In addition, the following terms are defined in consideration of the functions of the present invention, and these may vary depending on the intention of the user, the operator, or the custom, so the definition should be based on the contents of the present specification to describe the present invention .

Brief Description of the Drawings Fig. 1 is a schematic view of a product packaging machine to which a cutting groove forming apparatus according to the present invention is applied.

As shown in the drawings, the packaging groove cutting groove forming apparatus 100 according to the present invention includes a hopper 11 for feeding a package, a feed roller 12, a wrapping material placing unit 12 between the wrapping paper (paper) Sealing rollers 14a and 14b for thermally adhering and wrapping the wrapping paper or vinyl paper and wrapping rollers 16a and 16b for pulling the wrapping band 20 thermally bonded by the sealing rollers 14a and 14b, And a cutting groove is formed in the thermally adhering portion 22 of the package 20 packaged and discharged from the packaging machine 10 or if necessary the thermally adhered portion of the package 20 Execute the cutting operation.

Particularly, in the base body 30 integrally supporting the packaging machine 10 and the cutting groove forming apparatus 100, a portion of the sealing rollers 14a and 14b adjacent to the sealing rollers 14a and 14b, A positional displacement detection sensor 152 is provided at an adjacent position of the sealing roller 14a supported by the buffer cylinder 40 for detecting the positional change on the sealing roller 14a.

The positional displacement detection sensor 152 is provided for detecting a signal for controlling the operation of the cutting groove forming apparatus 100. For example, the normal package of the package is packed in a state of being accurately positioned in the receiving groove 15 formed by the sealing rollers 14a and 14b, and the package is defective when the package is out of the receiving groove 15 When the object to be wrapped is wrapped between the body portions of the sealing rollers 14a and 14b, the sealing roller 14a (or 14b) 14a and 14b, the sealing roller 14a supported by the buffer cylinder 40 is displaced in the direction of the arrow in FIG. 1 in such a manner that the buffer cylinder 40 is pushed backward by a distance corresponding to the thickness of the package, The position change detection sensor 152 detects the change in the position of the sealing roller 14a at this time and is sent to the PLC control unit 154. The PLC control unit 154 detects the change in the position of the sealing roller 14a The cylinder is controlled so as to cause a failure in the package stand 20 It is cut to separate only the sheet portion and allow blood packaging can cut grooves with respect to the packaging for which the entry is to be packed normally continuously formed. The detection sensor 152 and the PLC control unit 154 constitute the control means of the present invention.

Therefore, there is an advantage that the operation of the machine itself is not temporarily stopped even in the case of the prior art of the patent documents.

The detailed configuration and operation of the cutting slot forming apparatus 100 according to the present invention for carrying out such operations will be described in detail with reference to Figs. 2 to 5. Fig.

FIG. 2 is a perspective view showing only a cutting groove forming apparatus 100 according to the present invention installed in FIG. 1, and FIG. 3 is a plan view of FIG. 2. FIG. 4 is a cross- Fig. 5 is a side view of Fig. 3 as viewed in the direction of arrow A; Fig.

As shown in the drawing, when the structure of the cutting groove forming apparatus 100 according to the present invention is broadly divided, a cutting groove is formed in the thermal bonding section 22 (see FIG. 1) of the packaging bag 20 The blade unit 110, the moving blade reciprocating unit 120, the first and second cylinder units 132 and 134, the fixed blade fixing unit 140, and the control unit 150.

The blade portion 110 forming the cutting groove in the thermal bonding portion 22 of the packing stand 20 is in a horizontal state in a state of being faced to the conveying path of the packing stand 20, And comprises a blade 112 and a fixed blade 114.

Therefore, the moving blade 112 is moved to the fixed blade 114 over the entirety of the thermally adhering portion 22 of the packing stand 20 positioned between the moving blade 112 and the fixed blade 114 A fine cutting groove is formed by the pressure generated as it is touched.

The reciprocating movement of the moving blade 112 with respect to the fixed blade 114 is performed by the moving blade reciprocating means 120. The moving blade reciprocating means 120 is supported by the base 121 and rotated The cam shaft 122 is coupled to the eccentric cam portion 123 of the cam shaft 122 via a bearing 124 and extends to a position adjacent to the moving blade 112 to be in contact with the eccentric cam portion 123 To the moving blade 112 in a reciprocating linear motion, so that the reciprocating moving body 126 and the reciprocating moving body 126, which are shaped substantially as viewed from above, And guiding means 127 mounted movably and connected to the moving blade 112 only.

The guiding means 127 includes a guide hole 127-1 provided so as to penetrate a part of the reciprocating moving body 126 and a guide hole 127-1 reciprocating along the guide hole 127-1 And a guiding portion 127-2 slidably coupled to the moving blade 112 so as to be coupled to the moving blade 112.

3 and 4, the first cylinder 132 freely positioned on the reciprocating moving body 126 while directly coupling the cylinder rod portion to the moving blade 112 is provided in the reciprocating moving body 126, Which is integrally coupled with the first cylinder 132 at the rear side of the first cylinder 132 and is integrally coupled to the reciprocating moving body 126 through the fixing plate 135, A cylinder 134 is provided.

The second cylinder 134 is operated when a control signal is input from the PLC control unit 154 shown in FIG. 1, and the moving cylinder 112 is moved to a position where the moving blade 112 does not touch the fixed blade 114, .

The fixed blade fixing part 140 includes a fixed shaft 142 fixed to and supported by a base body 121 such as the base body 121. The fixed blade fixing part 140 is fixed to both ends of the fixed shaft 142 And support side plates 143 and 143 extending forwardly from the fixed blade 114 to provide an installation space for detachably supporting both ends of the support holder 141 of the fixed blade 114. The blade of the fixed blade And is formed in the form of a tooth 118 suitable for forming a cutting groove with respect to the thermally adhering portion 22 of the package 20.

The fixed blade fixing part 140 is provided at both ends of the supporting side plates 143 with a fixed blade fixing part 140. The fixed blade fixing part 140 includes a pair of supporting side plates 143, A guide bar 128 horizontally attached to both ends of the reciprocating movable body 126 is guided by the support plates 143 so that both ends of the support plate 126 can be stably guided and moved by the support side plates 143 And is moved along the guide groove 144 of the guide member 148 provided on the inner side of the guide member 148.

Reference numeral 129 denotes an electric pulley which is connected to another driving source to transmit the driving force to the cutting groove forming apparatus 100 of the packing stand.

Referring to the drawings again, a description will be made of an operation of the apparatus 100 for cutting a package according to the present invention having such a structure.

When the packaging bag 20 continuously discharged from the packaging machine 10 is transported to the blade portion 110 of the cutting groove forming apparatus 100 of the packaging bag according to the present invention as shown in Fig. 1, A cutting groove can be formed by the blade 110 in the thermally adhering portion 22.

The cutting edge of the blade 110 is formed by a continuous reciprocating movement of the moving blade 112 of the blade 110 with respect to the fixed blade 114, Is carried out by a driving force transmitted from the moving blade reciprocating means (120). That is, when the power transmitted from the electric pulley 129 of the moving blade reciprocating means 120 continuously rotates the camshaft 122, the bearing 124 rotates about the eccentric cam portion 123 of the camshaft 122, 2 and 3, while the reciprocating movable body 126 loosely engaged with the guide bars 126 is rotated in the forward and backward directions in the direction of the arrows in Fig. 2 and Fig. 3, (See Fig. 3) while being guided while being supported by the guide grooves 144 of the guiding members 148 of the supporting side plates 143 and 143. As shown in Fig.

The moving blade 112 coupled to the reciprocating movable body 126 via the first cylinder 132 (see FIG. 4) freely positioned is also moved from the eccentric cam portion 123 of the continuously rotating camshaft 122 to the reciprocating movable body The movable blade 114 is reciprocated back and forth by a continuous movement transmitted from the fixed blade 114 to the fixed blade 114,

This operation can form cutting grooves in the thermally adhering portion 22 of the packing stand 20 which sequentially enters between the moving blade 112 of the blade portion 110 and the fixed blade 114 in a faster operation, There is an advantage in that the cutting groove forming operation is speedily advanced as compared with the prior art (prior art of the patent document), and the productivity is increased accordingly.

The blade part 110 according to the present invention is different from the conventional blade in that the moving blade contacts with the receiving material receiving roller and the blade part of the moving blade 112 forms a tooth 118 of the fixed blade part 114 The cut grooves are formed in the thermally adhering portions 22 of the package 20 while directly contacting the blade portions of the thermally adhering portions 22 of the package 20, To form uniformly.

The reciprocating moving body 126 is configured such that the first cylinder 132 provided by means of coupling the reciprocating moving body 126 with the moving blade 112 cuts the thermally adhering portion 22 of the packing stand 20 can do. That is, the rod of the first cylinder 132 is coupled only to the moving blade 112, and in a state in which the moving blade 112 is advanced by the reciprocating moving body 126 in contact with the fixed blade 114, When the first cylinder 132 is operated to be extended by applying pressure to the first cylinder 132, the first cylinder 132 moves only the moving blade 112, which is separate from the reciprocating moving body 126, The thermally adhering portion 22 of the package stand 20 can be cut while being in stronger contact with the heat-sealing portion 114.

The movable blade 112 is guided to be moved by the guiding means 127 during the extension operation of the first cylinder 132 so that the movable blade 112 is further advanced toward the fixed blade 114, The pressure applied to the first cylinder 132 is released and the pressure applied to the first cylinder 132 is changed to the first cylinder 132 when the movable blade 112 is switched to the position for forming the original cut groove. ) To return to the home position.

On the other hand, due to the defective packaging in which the articles to be packaged by the sealing rollers 14a and 14b are packed in paper or vinyl paper by being chewed by the body portions of the sealing rollers 14a and 14b, The PLC control unit 154 detects the positional change of the sealing roller 14a by the position change detection sensor 152 and sends it to the PLC control unit 154 The second cylinder 134 is integrally coupled with the first cylinder 132 on the opposite side of the first cylinder 132 to control the second cylinder 134 to operate separately, The movable blade 112 coupled with the first cylinder 132 as well as the first cylinder 132 connected to the fixed blade 114 is moved from the fixed blade 114 to the rear side as shown in FIGS. ). ≪ / RTI >

Such a backward movement of the moving blade 112 can prevent the moving blade 112 from touching the fixed blade 114 and forming a cutting groove with respect to the defective packaging portion even when the eccentric cam portion 123 is continuously operated Thereby preventing the blade from being damaged due to the contact between the moving blade 112 and the fixed blade 114. [

The backward movement control of the moving blade 112 is performed until the defective packaging portion of the packaging bag 20 continuously supplied to the blade portion 110 passes through the blade portion 110. [

If it is confirmed that the defective packaging portion of the package 20 passes through the moving blade 110, the operator controls the second cylinder 134 to return to the original position from the PLC control unit 154, (132) is stretched to cut the thermally adhering portion (22) of the packaging bag (20) so that only the defective portion of the packaging bag is separated and discharged separately.

The cutting operation of this defective packaging portion is advantageous in that it is possible to continuously carry out the packaging and cutting operations continuously without interrupting the operation of the machine itself as in the prior art.

The detection of the passage of the defective packaging portion of the package 20 via the moving blade 110 in the above is the time taken from the sealing rollers 14a and 14b to the passing of the moving blade 110, A signal obtained by counting the number of revolutions of the sealing rollers 14a and 14b is supplied to the PLC control unit 154 so that the PLC control unit 154 can use the second cylinder 134 as a control signal for returning the second cylinder 134 to its original position It is possible to understand that These control signals can be variously implemented, so that any one of them will be specifically described.

In the above embodiment, the cutting groove forming apparatus according to the present invention is described as being operated step by step, but it is continuously operated as long as the package stand 20 is actually supplied.

INDUSTRIAL APPLICABILITY The present invention can be used more economically and efficiently in the production of a packaging bag cutting apparatus in which a cutting groove of a packaging bag is installed.

10: Packing machine
20: Packing stand
22:
100: Cutting groove forming device of packing stand
110: blade portion
112: Movable blade
114: Fixed blade
120: moving blade reciprocating means
122: cam shaft
123: eccentric cam portion
126: reciprocating movable body
127: guide means
128: Information Bar
132, 134: first and second cylinders
140: fixed blade fixing portion
142: fixed shaft
143: Supporting shroud
144: guide groove
148: Guide member
150: control means
152: Displacement detection sensor
154: PLC control unit

Claims (5)

An apparatus for forming a cutting groove in a thermally adhered portion of a packaging bag which is continuously packed while mutually thermally adhered by a pair of seal rollers,
Wherein the movable blade and the fixed blade are disposed in a state where they face each other in the conveying path of the package, and the movable blade is in contact with the fixed blade on the entirety of the thermal bonding portion positioned between the movable blade and the fixed blade A blade portion for forming a cutting groove by a generated pressure;
And a moving blade reciprocating means provided on one side of the blade to be connected to the moving blade and driven by a cam shaft to move the moving blade to contact with the fixed blade or to the separated position so as to form a cutting groove in the thermally adhered portion, ;
The moving blade is moved in a state of receiving the driving force of the moving blade reciprocating means to couple the leading end of the movable rod to the moving blade side and when the movable rod is extended as in the operation of the moving blade reciprocating means, A first cylinder for applying a pressing force that allows the thermally adhered portion to be cut forward;
A second cylinder which is integrally coupled to the first cylinder and is fixed to and supported by the moving blade reciprocating means to give a force to retract the moving blade from the fixed blade to keep the moving blade away from the fixed blade, ; And
And a deflecting unit for detecting a deflection generated due to the defective packaging of the product from the seal rollers by being fixed to a base supporting the seal rollers, The second cylinder is controlled to be retracted so as to be in a state of being separated from the fixed blade so as not to be in contact with the stationary blade, and after the defective packaging portion has passed, the second cylinder is controlled to return to its original position, And cutting means for cutting the cut portion of the package. The method according to claim 1,
Wherein the moving blade reciprocating means comprises a camshaft rotatably supported by the base, a camshaft coupled to the eccentric cam portion of the camshaft via a bearing and then extended to a position adjacent to the moving blade, And a moving blade guiding means which is provided so as to reciprocate to either one of the reciprocating moving body and is engaged only with the moving blade, characterized in that the moving blade guiding means Device. The method of claim 2,
Wherein the moving blade guiding means comprises a guiding groove integrally formed with the movable body, and a guiding groove coupled to the guiding groove and reciprocally slidably coupled to the guiding groove. The method of claim 3,
The control means includes a displacement detection sensor fixed to a base supporting the seal rollers and detecting a displacement of the seal rollers, and a control means for controlling the second cylinder based on a signal detected from the displacement detection sensor And a PLC control unit which cuts and discharges the defective packaging portion. The method of claim 4,
Wherein the fixed blade fixing portion includes: a fixing shaft fixedly supported on the base; support side plates extending forward from both ends of the fixing shaft so as to provide a space for supporting both ends of the fixing blade so that both ends of the fixing blade are detached and detached; And guiding members provided at both ends of the reciprocating movable body and having guide grooves slidably engaged with the guide bars provided at both ends of the reciprocating movable body. The blade of the fixed blade is formed in a sawtooth shape Wherein the cut-out groove forming device is formed with a cut-out groove.

Images