KR101129051B1 - Cutting assembly and cutting machine for cutting uncut film of adhesive tape and method for manufacturing adhesive tape with cut area by using the same - Google Patents

Abstract

The present invention relates to a fabric film cutting assembly capable of cutting an adhesive tape fabric film at a predetermined pressure by using an air cylinder and extending the life of a tool. The fabric film cutting assembly includes a housing having slots formed at both sidewalls. A ring knife partially received in the housing, a support shaft extending through the center of the ring knife and extending out of a slot of the housing, and a letter c received in the housing and extending rearward from the support shaft; A support arm having a shape and an air cylinder connected to a rear end of the support arm, wherein the air cylinder includes a piston rod extending rearward from the support arm, a piston connected to an end of the piston rod, and the piston rod. Or a cylinder accommodating the piston, an air inlet for adjusting the pneumatic pressure of the cylinder, It is configured to include an outlet port group.

Fabric Film Cutting Assembly, Fabric Film Cutting Device, Air Cylinder, Ring Knife

Description

CUTTING ASSEMBLY AND CUTTING MACHINE FOR CUTTING UNCUT FILM OF ADHESIVE TAPE AND METHOD FOR MANUFACTURING ADHESIVE TAPE WITH CUT AREA BY USING THE SAME}

The present invention relates to a fabric film cutting assembly and a fabric film cutting device capable of cutting the adhesive tape fabric film at a constant pressure using an air cylinder and extending the life of the tool.

In addition, the present invention relates to a method for manufacturing an adhesive tape having a cutout portion capable of cutting the original film at a predetermined pressure and extending the life of the tool by using the original film cutting assembly or the original film cutting device.

In general, adhesive tapes used for various packaging tapes have a configuration in which rolls are wound around paper tubes by applying an adhesive to one surface of the tape. The adhesive tape is manufactured so that it can be attached by the adhesive by applying the adhesive on the entire surface of the synthetic resin film, usually such synthetic resin film is cellophane, cellulose and its derivatives, polyethylene (PE), polypropylene (PP ), Polyvinyl chloride (PVC), polyester (PET), polyamide (PI) and the like.

However, the adhesive tape made by applying the adhesive to such a fabric film has a property that the fabric film itself is not easily broken, so the user who uses the adhesive tape may want to cut it according to its length after packaging. It is not easily cut in the longitudinal or transverse direction and stretches when a force is applied. Therefore, after the adhesive tape has been used, it can be cut or used with a separate cutting tool such as scissors or a knife to cut it to any length of the user, or with a tape dispenser equipped with a plastic or metal serrated cutting blade. Doing. As such, conventional adhesive tapes require a cutting device or tool to cut the adhesive tape. In particular, the inconvenience of having to carry a cutting tool, such as scissors, knives, there is a problem that the work time is delayed because the adhesive tape must be cut by using scissors or a knife in the work that must use a lot of adhesive tape.

In order to solve these problems, methods of forming a cutout in the adhesive tape itself have been devised. 1 illustrates an adhesive tape cutting system 1 used in a method of manufacturing a conventional cut formed adhesive tape.

The adhesive tape cutting system 1 includes a drive motor, a fixing device 10 composed of a rotating shaft 11 rotated by the driving motor and an adhesive tape roll 13 inserted into the rotating shaft, and the adhesive tape roll. Ring knife 21 for cutting (13), the rotating shaft 23 rotated by the rotation of the adhesive tape roll 13, the body 25 and the body 25, the rotating shaft 23 is installed It is configured to include a cutting device 20 consisting of a pedestal 27 to move. Here, the ring knife 21 is composed of a circular body portion, a circular blade portion forming the outer circumferential surface of the circular body portion, shaft holes formed in the center of the circular body portion and fine protrusions formed at equal intervals along the ends of the circular blade portion. do.

The circular blade portion of the conventional adhesive tape cutting system 1 cuts the adhesive tape roll 13, and the fine projection of the circular blade portion forms a fine cut groove on the side of the adhesive tape roll 13, thereby cutting the cut portion on the adhesive tape. Form. Therefore, there is an advantage that the user can easily cut the tape without a separate cutting tool.

However, in order to cut the adhesive tape roll 13, the cutting device 20 of the adhesive tape cutting system of the prior art must move toward the center of the adhesive tape roll 13 during the cutting process, thereby making the adhesive tape roll 13 ), The driving motor of the fixing device 10, the cutting device 20 due to the reaction force between the ring knife 21, the frictional force and viscosity due to the adhesive, the frictional force due to the increase of the friction area of the ring knife 13, etc. The driving motor, the ring knife 21 and the rotating shaft 23 of the pedestal 27 for moving the body 25 of the load is large, thereby shortening the tool life. In particular, unlike the ring knife 21, which is a consumable tool, the driving motor and the rotating shaft have a high maintenance and repair cost when worn or broken. Therefore, when these important parts are damaged, the entire cutting device needs to be replaced.

In addition, when cutting the adhesive tape roll according to the prior art, since the circular blade portion is cut and cut while pressing the adhesive tape roll, the problem that the dimensional accuracy of the finished adhesive tape is lowered, and the friction of the ring knife as the cutting process proceeds Since the area is increased and the pressure applied to the adhesive tape roll by the ring knife during the cutting process is not constant, there is a problem that the cut surface of the adhesive tape roll may be unevenly manufactured.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for manufacturing a raw film cutting assembly, a raw film cutting device, and a cutout formed adhesive tape which can solve the problems of the prior art.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method of manufacturing a raw film cutting assembly, a raw film cutting device, and a cut-out adhesive tape, which can reduce the reaction force or pressure applied to the cutting tool to extend the tool life.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method of manufacturing a raw film cutting assembly, a raw film cutting device, and a cutout part, which can improve dimensional accuracy of a finished adhesive tape.

SUMMARY OF THE INVENTION An object of the present invention is to provide a fabric film cutting assembly, a fabric film cutting device, and a cutout formed adhesive tape manufacturing method capable of improving the quality of the cut surface of the finished adhesive tape.

In order to achieve the above object, the raw film cutting assembly according to the present invention, the housing is formed with slots on both side walls, a ring knife partially received in the housing, and through the center of the ring knife of the housing A support shaft extending out of a slot, a "c" shaped support arm received in the housing and extending rearwardly from the support shaft, and an air cylinder connected to a rear end of the support arm; A piston rod extending rearward from the support arm, a piston connected to an end of the piston rod, a cylinder for receiving the piston rod or the piston, an air inlet and an air outlet for adjusting the pneumatic pressure of the cylinder; It is characterized in that the configuration.

The raw film cutting device according to the present invention comprises two or more raw film cutting assemblies arranged in parallel in the width direction of the raw film and having a ring knife and an air cylinder for buffering reaction force or pressure applied to the ring knife, A support stand for supporting the raw film cutting assembly, a pedestal through which the support stand can move forward or backward, a raw film supplied to the raw film cutting assembly, and a ring knife of the raw film cutting assembly when cutting the raw film It is characterized in that it is configured to include a feed roller configured to be in contact with the rotary drive.

Adhesive tape manufacturing method is formed according to the present invention, comprising: applying an adhesive on one side of the fabric film lengthened by stretching synthetic resin uniaxially or biaxially; A fabric film cutting device comprising a ring knife and two or more fabric film cutting assemblies having an air cylinder for buffering the reaction force or pressure applied to the ring knife, so that the cutout is formed on at least one side of the fabric film. Cutting the film longitudinally; And winding the cut fabric film in the branch pipe.

According to the present invention, there is an effect that can extend the tool life by reducing the reaction force or pressure applied to the cutting tool, thereby significantly reducing the maintenance and repair costs of the tool. In addition, the dimensional accuracy of the finished adhesive tape can be improved, and the quality of the cut surface of the finished adhesive tape can be improved, thereby reducing the manufacturing cost by significantly reducing the defective rate of the finished product. There is.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. For reference, in describing the embodiments of the present invention, if it is determined that a detailed description of a related known function or configuration may make the gist of the present invention unclear, the detailed description thereof will be omitted.

2 and 3 are a side view and a plan view of a raw film cutting device 1000 according to the present invention.

As shown in Figure 2, the original film cutting device 1000 according to the present invention, two or more original film cutting assembly 100 for cutting the original film (T), and the original film cutting assembly 100 The support stand 200 is supported, and the support stand 200 is composed of a pedestal 300 which can move forward or backward. The original film T is transferred toward the original film cutting device 1000 by the transfer roller 400. As will be described later, due to the rotation of the feed roller 400, the ring knife 130 in contact with the feed roller 400 is rotated and at the same time to form a cut in the original film (T).

The support stand 200 is fixed to the lower portion of the original film cutting assembly 100, and is connected to the pedestal 300 so as to move forward or backward along the pedestal 300. Preferably, the support stand 200 may be moved forward or backward by a driving motor installed in the pedestal 300 or manually toward the far end film T.

As shown in FIG. 3, two or more raw film cutting assemblies 100 of the raw film cutting device 1000 are arranged in parallel in the width direction with respect to the raw film T. Preferably, the spacing between the central axes of the raw film cutting assembly 100 is approximately equal to the width of one finished adhesive tape.

4 and 5 are schematic side and plan views of the raw film cutting assembly 100 according to the present invention.

4 and 5, the raw film cutting assembly 100 includes a housing 110 fixed to an upper end of the support stand 200, and a ring knife 130 partially received in the housing 110. ), A support shaft 150 passing through the center of the ring knife 130, a support arm 170 extending rearward from the support shaft 150, and a rear end of the support arm 170. It is composed of an air cylinder 190.

Slots 111 are formed on both sidewalls of the housing 110. The slot 111 serves to support the support shaft 150, and at the same time the piston rod 191 when the air cylinder 190 is operated to buffer the reaction force between the feed roller 400 and the ring knife 130. It serves to limit or guide the movement path of the support shaft 150 to move forward or backward in accordance with the forward movement or the backward movement. The front side of the housing 110 is open to accommodate the ring knife 130.

The ring knife 130 is partially accommodated in the housing 110. That is, a portion of the ring knife 130 is exposed to the outside of the housing 110 in front of the housing 110. The exposed portion of the ring knife 130 is in contact with the feed roller 400 to cut the raw film (T).

6 and 7, the ring knife 130 has a circular body portion 131, a shaft through opening 133 formed at the center of the circular body portion 131, and an edge of the circular body portion. It consists of a circular blade portion 135 is formed along the whole. While the conventional ring knife 130 is large in size to cut the adhesive tape roll wound on the branch pipe, the ring knife 130 according to the present invention cuts only the thickness of one sheet of film T, so the ring knife The 130 is much smaller in size than the conventional ring knife 130, which can significantly reduce the manufacturing cost of the consumable ring knife 130, manufacturing cost or maintenance and repair of the original film cutting device (1000) The cost can be significantly reduced.

The support shaft 150 passes through the shaft through opening 133 formed at the center of the circular body portion 131 of the ring knife 130. The connection relationship between the shaft through opening 133 and the support shaft 150 will be described later.

In the ring knife 130 of one of the two original film cutting assemblies 100 adjacent to each other, the thickness direction shape of the circular blade portion 135 of the ring knife 130 is “. The " " shape is a zig-zag wave shape repeated along the entire rim. The ring knife 130 rotates as the feed roller 400 rotates, and the original film T passes between the ring knife 130 and the feed roller 400, and the thickness direction of the circular blade part 135 described above. Due to the shape, the cutout portion having the same shape as the thickness direction of the circular blade portion 135 is continuously and constantly formed on the original film T, and at the same time, the original film T is continuously and constantly cut. For this reason, the adhesive tape in which cutouts were formed in one side at regular intervals can be manufactured.

Preferably, the ring knife 130 of the two adjacent fabric film cutting assembly 100 may have the zigzag wavy shape in the thickness direction, thereby manufacturing an adhesive tape having cutouts on both sides thereof. .

The support shaft 150 passes through the shaft through opening 133 of the ring knife 130 and extends out of both slots 111 of the housing 110. The support shaft 150 and the shaft through-opening 133 are bearing-connected or lubricant is coated on the surface of the support shaft 150 and the surface of the shaft through-opening 133, so that the feed roller 400 According to the rotation, the ring knife 130 may rotate about the support shaft 150. That is, the support shaft 150 serves as a rotational central axis of the ring knife 130 and at the same time, serves to support the ring knife 130 in the housing 110.

The support arm 170 is accommodated in the housing 110, and extends toward the rear from a position spaced apart from both sides of the ring knife 130 among the longitudinal positions of the support shaft 150. The shape of the support arm 170 is preferably a "c" shape, but need not be limited thereto. The length of the support arm 170 should be longer than the radius of the ring knife 130. The support arm 170 serves to transfer the reaction force between the feed roller 400 and the ring knife 130 transmitted by the support shaft 150 to the piston rod 191 or the air cylinder 190 to be described later. do. Preferably, the support arm 170 may be integral with the support shaft 150.

The air cylinder 190 includes a piston rod 191 extending rearward from the support arm 170, a piston 193 connected to an end of the piston rod 191, and the piston rod 191 or the piston. A cylinder 195 for accommodating 193, an air inlet 197 and an air outlet 198 for adjusting the air pressure of the cylinder 195 are configured. A spring 199 is inserted between the front inner sidewall of the cylinder 195 and the piston 193 to generate a force (ie, tensile restoring force) that pushes the piston 193 toward the rear side. That is, preferably, the air cylinder 190 is a single-acting air cylinder 190.

At this time, since the air which is the pressure medium in the air cylinder 190 generally has a predetermined compression characteristic and its filling is easy to restore the compressed volume easily and quickly, the air cylinder 190 is a shock absorber ( Cushion). In addition, when the ring knife 130 presses the feed roller 400 more than necessary due to the vibration of the feed roller 400 or the malfunction of the operator (that is, between the feed roller 400 and the ring knife 130). Excessive reaction force or pressure), the reaction force or pressure between the ring knife 130 and the transfer roller 400 can be attenuated by using the air cylinder 190 serving as a shock absorber. Reaction or pressure is applied constantly. On the contrary, when the reaction force or pressure between the ring knife 130 and the feed roller 400 is insufficient to cut the original film T due to the vibration of the feed roller 400 or the wear of the ring knife 130 blade. By supplying air into the cylinder 195 through the air inlet 197, the reaction force or pressure is uniformly applied between both components by increasing the reaction force or pressure. In this case, adjustment of the amount of air introduced can be performed by a well-known control apparatus.

Hereinafter, the operating mechanism of the raw film cutting device 1000 according to the present invention.

Before the raw film T is supplied to the raw film cutting device 1000, the support stand 200 of the raw film cutting device 1000 moves toward the feed roller 400 on the pedestal 300. During the movement of the support stand 200, the compressed film is introduced into the air inlet 197 of the air cylinder 190 to form pneumatic pressure before the raw film cutting device 1000 contacts the feed roller 400. This generates a force in the opposite direction to the tensile restoring force of the spring 199 to advance the piston 193 in the forward direction by a predetermined distance. Thereafter, the raw film cutting device 1000 is arranged at a position in contact with the feed roller 400. When the feed roller 400 rotates to supply the raw film T toward the raw film cutting device 1000, and the raw film T is positioned between the raw film cutting device 1000 and the transfer roller 400. Due to the frictional force or reaction force between the raw film cutting device 1000 and the feed roller 400, the ring knife 130 of the raw film cutting device 1000 is rotated along the rotation direction of the feed roller 400. At this time, the raw film T positioned between the raw film cutting device 1000 and the feed roller 400 is cut by the ring knife 130 of the raw film cutting device 1000, and is cut at the same time.

Since the air generating air pressure in the air cylinder 190 has a predetermined compression characteristic, the air cylinder 190 attenuates the reaction force or pressure applied to the feed roller 400 and the ring knife 130 mutually. The load on these tools can be significantly reduced. That is, the air cylinder 190 may act as a shock absorber (cushion) to extend the life of the feed roller 400, the drive motor and the ring knife 130 of the feed roller 400. In addition, this can significantly reduce the maintenance and repair costs of the tool.

In addition, using the air cylinder 190 to maintain a constant reaction force or pressure between the ring knife 130 and the feed roller 400 and at the same time the ring knife 130 is only one sheet of film T By cutting, the dimensional accuracy of the finished adhesive tape can be improved, and the quality of the cut surface of the finished adhesive tape can be improved, thereby significantly reducing the defective rate of the finished product, thereby reducing the manufacturing cost. It can be effective.

Hereinafter, the method of manufacturing the adhesive tape with a cutout part in accordance with the present invention will be described.

First, the adhesive is applied to one surface of the original film (T) lengthened by stretching the synthetic resin uniaxially or biaxially.

Secondly, the fabric film T is cut in the longitudinal direction using the fabric film cutting device 1000 such that a cutout is formed on at least one side of the fabric film T. At this time, the original film (T) is arranged so that one surface of the adhesive film is applied to the top facing up, using the rotation of the feed roller 400 to turn the original film (T) toward the original film cutting device (1000) Supply. That is, one surface of the original film T coated with the adhesive is a surface in which the ring knife 130 is in contact, and a surface in which the adhesive is not applied is in contact with the feed roller 400. The main principle of cutting the raw film (T) is the action of the rotational force of the ring knife 130 due to the rotation of the feed roller 400, the reaction force or pressure between the feed roller 400 and the ring knife 130.

The step of cutting the raw film (T) in the longitudinal direction, the process of rotating the feed roller 400 of the raw film (T) in order to transfer the raw film (T) toward the raw film cutting device 1000; Until the circular blade portion 135 of the raw film cutting device 1000 is in contact with the feed roller 400 of the raw film (T), the raw film cutting device 1000 is a feed roller of the raw film (T) ( Moving toward 400); And forming the cutout while simultaneously cutting the raw film T in the longitudinal direction by passing the raw film T between the feed roller 400 and the blade portion of the raw film cutting device 1000.

Preferably, before the process of moving the original film cutting device 1000 toward the feed roller 400 of the original film (T), the step of operating the air cylinder 190; further comprising, the original film cutting device ( The reaction force of the feed roller 400 applied to the 1000 can be buffered. That is, by operating the air cylinder 190 by introducing air into the air cylinder 190, the reaction force applied to the original film cutting device 1000 from the feed roller 400 due to the compression of the air in the air cylinder 190 Or pressure can be attenuated. Due to this process, it is possible to reduce the load applied to the feed roller 400, the drive motor of the feed roller 400 and the ring knife 130, the drive of the feed roller 400, the feed roller 400 Tool life of the motor and ring knife 130 can be extended.

Third, the raw film T which is cut and at the same time the cutout part is formed is wound up to the branch pipe. At this time, preferably the branch pipe may be cut in advance to match the cutting width of the raw film (T).

According to the present invention, using the original film cutting device 1000 equipped with an air cylinder 190 to maintain a constant reaction force or pressure between the ring knife 130 and the feed roller 400 and at the same time ring knife 130 ) Can cut only one thickness of the raw film (T) to improve the dimensional accuracy of the finished adhesive tape, and at the same time improve the quality of the cut surface of the finished adhesive tape, resulting in a defective rate of the finished product It can significantly reduce the manufacturing cost.

In addition, according to the present invention, since the pressing force for the original film (T) of the ring knife 130 with only the air cylinder 190 during the cutting step, it is unnecessary to move on the support 300 of the support stand 200 In addition, even when the driving motor for adjusting the movement of the support stand 200 is installed in the pedestal 300, the driving motor is hardly applied to the driving motor, thereby significantly extending the service life of the driving motor.

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the above-described embodiments, and the present invention is not limited to the scope of the present invention as claimed in the following claims. Of course, any person skilled in the art can make various modifications, and such modifications fall within the scope of the claims.

1 is a schematic perspective view of a prior art adhesive tape cutting system,

Figure 2 is a side view of the raw film cutting device according to the present invention,

3 is a plan view of a raw film cutting device according to the present invention,

4 is a side view of the raw film cutting assembly according to the invention,

5 is a plan view of a raw film cutting assembly according to the present invention,

6 is a schematic perspective view and a partially enlarged view of a ring knife according to the present invention;

7 is a schematic front view and a partially enlarged view of a ring knife according to the present invention.

Claims (8)

A housing 110 having slots 111 formed on both sidewalls; A ring knife 130 partially received in the housing 110; A support shaft 150 extending through the center of the ring knife 130 and extending out of the slot 111 of the housing 110; A support arm (170) shaped in the housing (110) and extending in a rearward direction from the support shaft (150); And Piston rod 191 extending rearward from the support arm 170, a piston 193 connected to the end of the piston rod 191, the cylinder rod (195) for receiving the piston rod 191 or the piston 193 And an air cylinder 190 having an air inlet 197 and an air outlet 198 for adjusting the pneumatic pressure of the cylinder 195. The support shaft 150 moves forward and backward of the piston rod 191 when the piston rod 191 of the air cylinder 190 moves back and forth to buffer the reaction force or pressure applied to the ring knife 130 during operation. According to the original film cutting assembly, characterized in that supported so as to move back and forth within the slot (111) of the housing (110). delete At least two raw film cutting assemblies (100) according to claim 1 arranged in parallel in the width direction of the raw film (T); A support stand 200 for supporting the raw film cutting assembly; A support 300 to which the support stand 200 can move forward or backward; And A feed roller 400 configured to supply the raw film T toward the raw film cutting assembly, and to rotate in contact with the ring knife 130 of the raw film cutting assembly when the raw film T is cut. Fabric film cutting device characterized in that. The method of claim 3, The ring knife 130 of at least one of the two original film cutting assemblies adjacent to each other may include a circular body portion 131, a shaft through opening 133 formed at the center of the circular body portion 131, and A circular blade portion 135 formed along the entire edge of the circular body portion 131; The circular blade portion 135 in the thickness direction, the original film cutting device, characterized in that the "<" shape is a zigzag wave shape is repeated along the rim. Applying an adhesive to one surface of the original film (T) having a length increased by stretching the synthetic resin uniaxially or biaxially; Cutting the raw film (T) in the longitudinal direction so that a cutout is formed on at least one side of the raw film (T) using the raw film cutting device according to claim 3; And A method of manufacturing an adhesive tape having a cutout, comprising the steps of: winding the cut fabric film (T) on a branch pipe. The method of claim 5, Before the step of winding in the branch pipe, cutting the branch pipe to the cutting width of the original film (T); cutting tape formed adhesive tape characterized in that it further comprises. The method of claim 5, Cutting the raw film (T) in the longitudinal direction, Rotating the feed roller 400 of the raw film T to transfer the raw film T toward the raw film cutting device; The process of moving the raw film cutting device toward the feed roller 400 of the raw film (T) until the circular blade portion 135 of the raw film cutting device is in contact with the feed roller 400 of the raw film (T). ; And It includes a step of passing the original film (T) between the feed roller 400 and the ring knife 130 of the original film cutting device to cut the original film (T) in the longitudinal direction in a predetermined width at the same time to form a cutout; Adhesive tape manufacturing method characterized in that the cutout is formed. The method of claim 7, wherein Before the process of moving the raw film cutting device toward the feed roller 400 of the raw film (T), operating the air cylinder 190 to buffer the reaction force of the feed roller 400 applied to the raw film cutting device Process; the adhesive tape manufacturing method is formed, characterized in that it further comprises a.

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