CN113493018B

CN113493018B - Automatic plastic feeding device for packaging

Info

Publication number: CN113493018B
Application number: CN202110321478.4A
Authority: CN
Inventors: 金成俊; 郑光九
Original assignee: Sanus Technology Co ltd
Current assignee: Sanus Technology Co ltd
Priority date: 2020-04-02
Filing date: 2021-03-25
Publication date: 2023-05-30
Anticipated expiration: 2041-03-25
Also published as: CN113493018A; KR20210123442A; KR102364213B1

Abstract

The invention relates to an automatic plastic feeding device for packaging, which comprises: a plastic supply unit for sequentially supplying a plurality of plastic rolls wound with a plurality of layers of plastic in a tube form; a plastic arrangement part for orderly arranging and bonding the multilayer plastic of the preceding plastic roller supplied from the plastic supply part and the multilayer plastic of the succeeding plastic roller supplied later; and a packaging unit configured to convey the multilayer plastic supplied through the plastic arraying unit to a predetermined position while keeping a front end portion of the multilayer plastic open, and cut the conveyed multilayer plastic according to a length of a product to be packaged. The invention has the following effects that the plastic is automatically transferred to the product packaging position in an opened state, and other plastic roller materials are automatically supplied under the condition that the initially supplied plastic roller materials are exhausted, thereby greatly improving the working efficiency and reducing the reject ratio generated in product packaging.

Description

Automatic plastic feeding device for packaging

Technical Field

The invention relates to an automatic plastic feeding device for packaging. More particularly, the present invention relates to an automatic packaging plastic supply device for automatically supplying a multilayer plastic to a product in an automatic process of the product requiring plastic packaging.

Background

In products requiring plastic packaging, packaging of materials such as battery plate separator film, which is important for cleanliness management in the product packaging process, requires a work of preventing the plastic-stretched surface from contacting the surface of the product, which is very troublesome.

In the past plastic packaging has been performed in such a way that the inlet portions of plastics cut in different sizes are opened and the products are put in by an operator grouped into 2 persons without taking care of bringing the products into contact with the open inner side of the plastics. The operation in this manner presents a number of difficulties in the cleanliness management or reject ratio management of the product.

In order to solve such a problem, an automatic plastic packaging machine has been developed in the past in which both sides of a multi-layered plastic are opened by an adsorption pad, and after the product is passed through the opened sides of the plastic, the product is placed at a set position, thereby completing the packaging.

However, in the case of using a multi-layered plastic material in a roll form, the conventional automatic plastic packaging machine is likely to fail to accurately perform the operation of separating the multi-layered plastic material by the suction pad, and in the case of transferring the plastic material, there is a case where the product cannot pass through the opened surface of the plastic due to unstable directivity thereof.

Further, if the amount of plastic material supplied does not satisfy the daily throughput, the manual supply of plastic material for packaging is too frequent, which has a disadvantage of reducing the factory automation efficiency.

Prior art literature

Patent literature

Patent document 0001: korean patent No. 10-0246447 (12/06 1999)

Disclosure of Invention

In order to solve the above-described problems, an object of the present invention is to provide an automatic packaging plastic feeding apparatus for automatically feeding plastic in an opened state to a product packaging position, and automatically feeding another plastic roll material when the initially fed plastic roll material is exhausted.

In order to achieve the above object, the present invention provides an automatic plastic feeding apparatus for packaging, comprising: a plastic supply unit for sequentially supplying a plurality of plastic rolls wound with a plurality of layers of plastic in a tube form; a plastic arrangement part for orderly arranging and bonding the multilayer plastic of the preceding plastic roller supplied from the plastic supply part and the multilayer plastic of the succeeding plastic roller supplied later; and a packaging unit configured to convey the multilayer plastic supplied through the plastic arraying unit to a predetermined position while keeping a front end portion of the multilayer plastic open, and cut the conveyed multilayer plastic according to a length of a product to be packaged.

In this case, the present invention is characterized in that the plastic supply part includes: a supply rack provided with a plurality of rotating shafts for mounting the respective plastic rolls, a fixing lever for fixing a front end portion of the multi-layered plastic unwound from the plastic rolls, and a rotating portion for rotating the rotating shafts so as to sequentially supply the plastic rolls; and a lifting unit for lifting or lowering the supply rack.

The fixing lever may be a cam-shaped lever, and the plastic supply unit may include a lever switch unit for switching the fixing lever in a state of fixing the multilayer plastic front end portion to an unlocked state.

The plastic supply unit further includes a first transfer roller composed of a pair of rollers engaged with each other, and disposed at the rear end of the fixing lever, for transferring the multilayer plastic inserted inside to the plastic arrangement unit.

The plastic alignment part of the present invention further includes: an arrangement unit provided with a cutting and extruding unit for holding and cutting the multilayer plastic of the preceding plastic roll and the multilayer plastic of the succeeding plastic roll in a state where the multilayer plastic is overlapped with each other, and arranging the ends of the multilayer plastic in a butt joint manner; and an adhesive part for bonding the multi-layer plastic by adhering the surfaces of the multi-layer plastic arranged in such a manner that the end parts are butted with each other.

The present invention is also characterized in that the above-mentioned arrangement unit further comprises: a first fixed pressing part arranged at the front end of the cutting pressing part for holding the multi-layer plastic of the backward plastic roller transferred from the plastic supplying part; and a second fixed pressing part arranged at the rear end of the cutting pressing part and used for holding the multilayer plastic of the preceding plastic roller.

The plastic alignment part of the present invention further includes a transfer part for transferring the alignment member to a predetermined attachment position of the attachment part in a state where the multilayer plastic is held by the first fixed pressing part and the second fixed pressing part.

The alignment unit may further include a removing portion for removing the scattered portions of the multilayer plastic cut by the cutting and pressing portion from the alignment unit.

The plastic alignment part may further include a tension adjusting part disposed at a rear end of the attaching part for adjusting tension of the multilayered plastic.

The plastic arranging section of the present invention further includes a second transfer roller composed of a pair of rollers engaged with each other, and disposed at the rear end of the tension adjusting section, for transferring the multilayer plastic inserted inside to the packaging section.

The present invention is characterized in that the packaging unit includes: a plastic separating part for spreading the multi-layered plastic transferred from the plastic arranging part and transferring the multi-layered plastic to the rear; and a clamp for holding the front end of the opened multi-layer plastic and transferring the multi-layer plastic to a preset position according to the length of the product to be packaged.

The plastic separating portion according to the present invention includes: an outer wheel; and an inner ring disposed inside the outer ring so as to maintain a gap with the outer ring, wherein the multilayered plastic material is stretched by passing through the gap between the outer ring and the inner ring.

In the present invention, the plastic separating unit further includes a plastic cutting unit disposed at a rear end of the outer ring, and cuts the multilayered plastic in the opened state by rotating along an outer circumferential surface of the inner ring.

The invention has the following effects that the plastic is automatically transferred to the product packaging position in an opened state, and other plastic roller materials are automatically supplied under the condition that the initially supplied plastic roller materials are exhausted, thereby greatly improving the working efficiency and reducing the reject ratio generated in product packaging.

Drawings

Fig. 1 is a front view schematically showing an automatic plastic feeding apparatus for packaging according to a preferred embodiment of the present invention.

Fig. 2 is a plan view schematically showing an automatic plastic feeding apparatus for packaging according to a preferred embodiment of the present invention.

Fig. 3 is a front view of the plastic supply.

Fig. 4 is a side view of the plastic supply.

Fig. 5 is a front view of the plastic alignment portion.

Fig. 6 is an enlarged view of a portion a in fig. 5.

Fig. 7 is a view showing a state in which the alignment member of the plastic alignment portion is moved to the attaching portion.

Fig. 8 is a front view of the package.

Fig. 9 is a sectional view taken along line B-B in fig. 8.

Fig. 10 is an enlarged view of a portion D in fig. 9.

Fig. 11 is a cross-sectional view taken along line C-C in fig. 8.

Description of the reference numerals

1:

plastic rolls

2a, 2b: multilayer plastic

10: automatic plastic feeding device for packaging

100: plastic supply unit 110: supply rack

112: a rotation shaft 114: fixing rod

116: the rotation section 120: lifting part

130: the lever switch section 140: first transfer roller

200: plastic alignment portion 202: arrangement assembly

210: the first fixed pressing part 220: second fixed extrusion part

230: cutting press portion 240: removal part

250: transfer unit 260: adhesive part

270: tension adjusting unit 280: second transfer roller

290: guide roller

300: packaging unit 310: plastic separating part

312: outer wheels 313, 315: roller

314: inner wheel 316: plastic cutting part

320: motor 322: belt with belt body

330: first rail 340: clamp

342: clamp arm 344: second guide rail

346: third guide rail

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in the process of giving reference numerals to constituent elements in the respective drawings, the same reference numerals are given to the same constituent elements as much as possible even if they appear in different drawings. In addition, when it is determined that the gist of the present invention is likely to be confused, a detailed description thereof will be omitted. Also, although preferred embodiments of the present invention will be described below, the technical idea of the present invention may be implemented by one of ordinary skill in the art to which the present invention pertains without being limited or restricted by these preferred embodiments.

Fig. 1 is a front view schematically showing a packaging plastic automatic feeding apparatus according to a preferred embodiment of the present invention, and fig. 2 is a plan view schematically showing a packaging plastic automatic feeding apparatus according to a preferred embodiment of the present invention.

The automatic packaging plastic feeding apparatus 10 of the preferred embodiment of the present invention is for continuously feeding the multilayer

plastic materials

2a, 2b which are in a tube form when unfolded and are packaged by putting the products inside.

The automatic packaging plastic feeding apparatus 10 according to the present invention as described above includes: a plastic supply unit 100 for sequentially supplying a plurality of plastic rolls 1 in a tube form around which a plurality of layers of

plastic

2a, 2b are wound; a plastic alignment part 200 for aligning and bonding the multi-layered plastic 2b of the preceding plastic roll 1 supplied from the plastic supply part 100 with the multi-layered plastic 2a of the succeeding plastic roll 1 supplied later; and a packing unit 300 for transferring the multilayer plastic 2a supplied through the plastic arranging unit 200 to a predetermined position while keeping the front end portion of the multilayer plastic 2a open, and cutting the transferred multilayer plastic 2a according to the length of the product to be packed.

Fig. 3 is a front view of the plastic supply portion, and fig. 4 is a side view of the plastic supply portion.

The plastic supply unit 100 will be described below with reference to fig. 3 and 4.

The plastic supply part 100 includes: a supply rack 110 for mounting a plurality of plastic rolls 1 and sequentially supplying the mounted plastic rolls 1; and a lifting part 120 for adjusting the height of the supply rack 110.

Specifically, a plurality of rotating shafts 112 for mounting the plastic rolls 1 are provided in the supply frame 110. The rotation shaft 112 is provided with a motor to induce the plastic roll 1 to smoothly rotate when the

multi-layered plastic

2a, 2b wound around the plastic roll 1 is unwound.

Further, a fixing lever 114 for fixing the front end portion of the multilayer plastic 2a unwound from the plastic roll 1 is provided in the supply rack 110.

The fixing lever 114 may be formed as a cam-shaped lever, and the front end of the multilayer plastic 2a is engaged with or released from a portion of the fixing lever 114 according to the opening and closing operation of the fixing lever 114.

The supply rack 110 is provided with a sensor for detecting the amount of the multi-layered plastic 2a of the plastic roll 1 mounted on each rotation shaft 112, and it is possible to confirm whether the multi-layered plastic 2a of the plastic roll 1 in the supplied state is consumed or not.

The supply rack 110 is provided with a rotating portion 116 for rotating the plurality of rotating shafts 112 so as to sequentially supply the plastic rolls 1.

The lifting unit 120 may be implemented as a lifting device such as a ball screw and a linear motion Guide (LM Guide) unit, and may move the supply rack 110 connected to the ball screw in the up-down direction along the linear motion Guide unit. The elevating unit 120 may be realized by other known means.

The plastic supply unit 100 further includes a lever switch unit 130 disposed at an upper portion of the fixing lever 114 at the supply position, and configured to switch the fixing lever 114 in a state of fixing the front end portion of the multilayer plastic 2a to an unlocked state.

The lever switch part 130 may be composed of a pneumatic cylinder and a roller connected to the pneumatic cylinder and lifted. The rod switch 130 is capable of supplying the multilayer plastic 2a by bringing the fixed rod 114 into contact with the fixed rod 114 during the lowering operation and switching the fixed rod 114 to the released state.

The plastic supply unit 100 includes a first transfer roller 140 disposed at the rear end of the fixing lever 114 for transferring the multilayer plastic 2a to the plastic alignment unit 200 as a subsequent process.

The first transfer roller 140 is composed of a pair of vertically disposed rollers that are engaged with each other, and the upper roller is connected to a pneumatic cylinder to perform a lifting operation.

The rollers of the first transfer roller 140 are rotatably connected to a motor or the like, and can transfer the multilayer plastic 2a interposed between the rollers to the plastic alignment portion 200 as a subsequent process.

Fig. 5 is a front view of the plastic alignment part, fig. 6 is an enlarged view of a portion a in fig. 5, and fig. 7 is a view showing a state in which an alignment member of the plastic alignment part is moved to the attaching part.

Hereinafter, the plastic alignment portion 200 will be described with reference to fig. 5 to 7.

The plastic alignment section 200 is composed of an alignment unit 202 and an adhesive section 260, etc., the alignment unit 202 aligns the multilayer plastic 2b of the preceding plastic roll 1 supplied first and the end of the multilayer plastic 2a of the succeeding plastic roll 1 supplied later so as to abut against each other, and the adhesive section 260 connects the aligned

multilayer plastics

2a, 2b.

Specifically, the alignment assembly 202 includes: a first fixed pressing part 210 for holding the multi-layered plastic 2a of the rear plastic roll 1 transferred from the plastic supply part 100 by the first transfer roll 140; a second fixed pressing part 220 disposed at the rear end of the cutting pressing part 230 for holding the multi-layered plastic 2b of the preceding plastic roll 1; and a cutting press unit 230 for holding and cutting the

multilayer plastic

2a, 2b in a state where the multilayer plastic 2b of the preceding plastic roll 1 and the multilayer plastic 2a of the succeeding plastic roll 1 overlap each other.

The first fixed pressing part 210 and the second fixed pressing part 220 are lifted by a pneumatic cylinder, and are composed of a gasket-shaped structure for holding the

multilayer plastics

2a and 2b when lowered.

The cutting press portion 230 is also configured to be lifted by a pneumatic cylinder, and as shown in fig. 6, the two pressing gaskets press and fix the

multilayer plastics

2a and 2b in a state where the

multilayer plastics

2a and 2b are overlapped, and the

multilayer plastics

2a and 2b are cut by a cutting tool such as a blade between the pressing gaskets.

The arranging assembly 202 may further include a removing part 240 to remove the fragmented portions of the

multi-layered plastic

2a, 2b cut by the cutting press part 230 from the arranging assembly 202.

In this case, the removing unit 240 may be provided with an adsorption device using air pressure. The broken portions of the

multi-layered plastics

2a, 2b adsorbed by the removing portion 240 are separated into individual loading boxes (not shown).

On the other hand, the plastic alignment part 200 includes a transfer part 250 for transferring the alignment member 202 to a predetermined attachment position of the attachment part 260 in a state where the

multilayer plastic

2a, 2b is gripped by the first and second fixed

pressing parts

210, 220.

As shown in fig. 7, after the

multilayer plastics

2a and 2b are cut and aligned by the cutting press part 230 and the broken portions are removed by the removing part 240, the aligned portions of the

multilayer plastics

2a and 2b are transferred to the predetermined positions of the attaching part 260.

The adhering portion 260 adheres the surfaces of the

multilayer plastics

2a and 2b arranged such that the end portions thereof are abutted against each other to join the

multilayer plastics

2a and 2b, thereby connecting the multilayer plastics 2b supplied first and the multilayer plastics 2a supplied later.

In this way, it is possible to continuously supply the multi-layer plastic 2a of the plastic roll 1 to be supplied later after the plastic roll 1 to be supplied earlier is completely exhausted.

The plastic alignment part 200 may further include: a tension adjusting part 270 disposed at the rear end of the attaching part 260 for adjusting the tension of the

multilayered plastic

2a, 2b; a second transfer roller 280 disposed at the rear end of the tension adjusting portion 270 for transferring the

multilayer plastics

2a, 2b inserted inside to the packaging portion 300; and a guide roller 290 disposed at the rear end of the second transfer roller 280, for guiding the overlapped

multilayer plastics

2a and 2b to smoothly spread.

As shown in fig. 5, the tension adjusting portion 270 may include rollers that are lifted and lowered along the ball screw, and the tension of the

multilayer plastic

2a, 2b passing around the rollers is adjusted by the lifting and lowering action of the rollers.

In this case, a plurality of sensors for detecting the tension of the transferred

multilayer plastics

2a and 2b may be provided in the plastic alignment portion 200, and the rise or fall of the tension adjusting portion 270 may be controlled according to the degree of the detected tension.

The second transfer roller 280 is configured in the same manner as the first transfer roller 140 and moves the

multilayer plastics

2a and 2b.

Fig. 8 is a front view of the package, fig. 9 is a sectional view taken along line B-B in fig. 8, fig. 10 is an enlarged view of a portion D in fig. 9, and fig. 11 is a sectional view taken along line C-C in fig. 8.

The package 300 is described below with reference to fig. 8 to 11.

The packaging unit 300 includes: a plastic separating unit 310 for spreading the multilayer plastic 2a transferred from the plastic arranging unit 200 and transferring the same backward; and a clamp 340 for holding the front end of the opened multi-layered plastic 2a and transferring the multi-layered plastic 2a to a predetermined position according to the length of the product to be packaged.

Specifically, as shown in fig. 9, the plastic separating portion 310 is formed in a circular frame shape formed by an outer wheel 312 and an inner wheel 314.

In this case, the inner ring 314 is disposed inside the outer ring 312 so as to maintain a gap with the outer ring 312, and the multilayered plastic 2a is stretched into a tubular shape through the gap between the outer ring 312 and the inner ring 314.

As shown in fig. 10, a plurality of

rollers

313 and 315 are provided in the outer wheel 312 and the inner wheel 314, respectively, and the outer wheel 312 and the inner wheel 314 are connected by these

rollers

313 and 315.

Although not shown, the inner wheel 314 may be disposed inside the outer wheel 312 by a magnetic field.

The plastic separating unit 310 further includes a plastic cutting unit 316 disposed at the rear end of the outer wheel 312 and configured to cut the multi-layered plastic 2a in an expanded state by rotating along the outer circumferential surface of the inner wheel 314.

The plastic cutting part 316 has a circular frame and a cutting tool (not shown) for cutting the multi-layered plastic 2a is installed inside the frame. Such a plastic cutting part 316 is rotated by a belt 322 which obtains a driving force from a motor 320, and at the same time, the cutting tool cuts the multi-layered plastic 2a.

The plastic cutting portion 316 is configured to be movable back and forth along the first rail 330, so that a cutting portion of the multi-layered plastic 2a can be selected according to the length of the product.

The jig 340 is formed so as to linearly move by a cylinder, and a portion in contact with the multilayer plastic 2a is formed of a soft gasket to prevent the multilayer plastic 2a from being damaged.

The clamp 340 is connected to a clamp arm 342, and the clamp arm 342 is configured to be movable back and forth along the second rail.

Further, the gripper arm 342 can move laterally along the third rail 346, so that the multi-layered plastic 2a having various diameters can be applied to product packaging.

In the following, a packaging process of the automatic packaging plastic feeding apparatus 10 according to the preferred embodiment of the present invention will be described, and first, an operator attaches the plurality of plastic rolls 1 to the rotating shaft 112 and fixes the distal ends of the multilayer plastic 2a to the fixing rod 114. In this case, the fixing lever 114 for fixing the multilayer plastic 2b of the plastic roll 1 that is supplied first is opened.

Next, the front end of the multilayer plastic 2b of the plastic roll 1 that is supplied first is made to pass through the plastic arranging part 200 and the plastic separating part 310 of the packaging part 300, and the multilayer plastic 2b is supplied to the jig 340 located in front of the plastic separating part 310.

The above-described operation needs to be performed manually by an operator in order to perform the initial operation, but the subsequent steps are performed automatically.

The clamp 340 holds the front end of the multilayer plastic 2b and moves backward to pull the multilayer plastic 2b, and at the same time, the plastic separating part 310 moves to a cutting position of the multilayer plastic 2b according to the length of the product. In this case, the jig 340 and the plastic separating portion 310 are moved toward the cutting position of the multilayer plastic 2b with reference to the midpoint of the product to be packaged.

When the plastic separating part 310 is disposed at the cutting position of the multilayer plastic 2b, the plastic cutting part 316 cuts the multilayer plastic 2b. In this case, the multi-layered plastic 2b is cut at the rear of the outer wheel 312, so that the front end of the multi-layered plastic 2b can be easily held by the clamp 340 after being cut.

When the initially supplied plastic roll 1 is exhausted after repeating the above-described steps, a plurality of sensors detect this, and thereafter the supply rack 110 can be rotated based on the signals of the sensors so as to supply a new plastic roll 1.

In this case, the second transfer roller 280 and the clamp 340 stop operating, and the rear end of the first supplied multilayer plastic 2b stays between the cutting press part 230 and the first fixed press part 210, and the second fixed press part 220 is lowered to fix the first supplied multilayer plastic 2b.

When the new plastic roll 1 is supplied to the supply position by rotating the supply rack 110, the lever switch part 130 is lowered to switch the fixing lever 114 to the open position, and simultaneously the first transfer roller 140 is lowered to transfer the multi-layered plastic 2a of the new plastic roll 1 to the cutting press part 230 of the plastic alignment part 200.

The new multilayer plastic 2a transferred to the cutting press 230 will overlap with the upper portion of the previously supplied multilayer plastic 2b.

Thereafter, the subsequently supplied multilayer plastic 2b is fixed by lowering the first fixing pressing part 210, and then the previously supplied multilayer plastic 2b and the newly supplied multilayer plastic 2a are simultaneously cut by lowering the cutting pressing part 230. In this way, the ends of the

multilayer plastic

2a, 2b will be aligned in a butted state.

In this state, the cutting press part 230 is raised again, and the broken portions of the

multilayer plastics

2a, 2b are removed by the removing part 240.

In a state where the

multilayer plastics

2a, 2b are aligned, the alignment member 202 moves to the attaching position of the attaching portion 260, and the attaching portion 260 attaches the upper and lower surfaces of the butted

multilayer plastics

2a, 2b to achieve connection.

When the

multilayer plastic

2a, 2b is stuck, the first fixed pressing part 210 and the second fixed pressing part 220 rise again, and the second transfer roller 280 and the jig 340 work again, and the jig 340 pulls the front end portion of the multilayer plastic 2b that is supplied first to pass the stuck portion through the plastic cutting part 316.

After that, the plastic cutting part 316 cuts the newly supplied multilayer plastic 2a, and the previously supplied multilayer plastic 2b including the stuck portion is discarded. In this way, the glued part can be prevented from being used for product packaging.

The gripper 340 repeats the process of gripping and moving the multilayer plastic 2a in a state where the stuck portion is removed and the tip of the newly supplied multilayer plastic 2a is passed through the plastic separating section 310, thereby performing the product packaging process.

As described above, the automatic plastic feeding apparatus 10 for packaging according to the preferred embodiment of the present invention automatically feeds a plurality of plastic rolls 1 in sequence, so that the frequency of direct feeding by the operator manually is reduced, and the efficiency of the automated equipment is greatly improved, and thus the present invention is very useful.

The above description is merely illustrative of the technical idea of the present invention, and a person skilled in the art to which the present invention pertains may make various modifications, alterations and substitutions without departing from the essential characteristics of the present invention. Accordingly, the embodiments and drawings disclosed in the present invention are for explaining the technical idea of the present invention, not for limiting the technical idea of the present invention, and the scope of the technical idea of the present invention is not limited to the embodiments and drawings. The scope of the present invention should be interpreted by the scope of the invention claims, and all technical ideas within the equivalent scope should be interpreted to be included in the scope of the invention claims.

Claims

1. An automatic plastic feeding device for packaging, comprising:

a plastic supply unit for sequentially supplying a plurality of plastic rolls wound with a plurality of layers of plastic in a tube form;

a plastic arrangement part for orderly arranging and bonding the multilayer plastic of the preceding plastic roller supplied from the plastic supply part and the multilayer plastic of the succeeding plastic roller supplied later; and

a packaging part for transferring the multilayer plastic supplied by the plastic arrangement part to a preset position under the state that the front end parts of the multilayer plastic are opened, cutting the transferred multilayer plastic according to the length of the product to be packaged,

the package portion includes:

a plastic separating part for spreading the multi-layered plastic transferred from the plastic arranging part and transferring the multi-layered plastic to the rear; and

a clamp for holding the front end of the opened multi-layer plastic and transferring the multi-layer plastic to a preset position according to the length of the product to be packaged,

the plastic separating part includes:

an outer wheel; and

an inner ring disposed inside the outer ring so as to maintain a gap with the outer ring,

the multi-layered plastic material is passed through the gap between the outer wheel and the inner wheel and stretched,

the plastic separating part further comprises a plastic cutting part arranged at the rear end of the outer wheel and used for cutting the multi-layer plastic in an open state by rotating along the outer peripheral surface of the inner wheel,

the plastic cutting part has a circular frame, and a cutting tool for cutting the multi-layered plastic is installed inside the frame, and rotated by a belt driven from a motor so that the cutting tool cuts the multi-layered plastic,

the plastic cutting part is configured to be movable back and forth along the first guide rail together with the plastic separating part, so that a cutting position of the multi-layered plastic is selected.

2. The automatic plastic feeding apparatus for packaging according to claim 1, wherein the plastic feeding portion comprises:

a supply rack provided with a plurality of rotating shafts for mounting the respective plastic rolls, a fixing lever for fixing a front end portion of the multi-layered plastic unwound from the plastic rolls, and a rotating portion for rotating the rotating shafts so as to sequentially supply the plastic rolls; and

and a lifting part for lifting or lowering the supply rack.

3. The automatic plastic packaging feeding device according to claim 2, wherein,

the fixing rod forms a cam-shaped rod,

the plastic supply part further comprises a rod switch part for switching the fixed rod in a state of fixing the multilayer plastic front end part to an untwisted state.

4. The automatic packaging plastic feeding apparatus according to claim 3, wherein the plastic feeding portion further comprises a first transfer roller composed of a pair of rollers engaged with each other, disposed at a rear end of the fixing rod, for transferring the multilayer plastic inserted inside to the plastic arrangement portion.

5. The automatic packaging plastic feeding apparatus according to claim 1, wherein the plastic arranging portion comprises:

an arrangement unit provided with a cutting and extruding unit for holding and cutting the multilayer plastic of the preceding plastic roll and the multilayer plastic of the succeeding plastic roll in a state where the multilayer plastic is overlapped with each other, and arranging the ends of the multilayer plastic in a butt joint manner; and

and an adhesion part for adhering the surfaces of the multi-layer plastics arranged in a manner that the end parts are butted with each other to bond the multi-layer plastics.

6. The automatic packaging plastic supply device according to claim 5, wherein the arrangement assembly further comprises:

a first fixed pressing part arranged at the front end of the cutting pressing part for holding the multi-layer plastic of the backward plastic roller transferred from the plastic supplying part; and

and a second fixed pressing part arranged at the rear end of the cutting pressing part and used for holding the multilayer plastic of the preceding plastic roller.

7. The automatic packaging plastic feeding apparatus according to claim 6, wherein the plastic alignment part further comprises a transfer part for transferring the alignment member to a predetermined attachment position of the attachment part in a state where the multilayer plastic is held by the first fixed pressing part and the second fixed pressing part.

8. The automatic packaging plastic feeding apparatus according to claim 6, wherein said array unit further comprises a removing portion for removing the broken portions of said multilayer plastic cut by said cutting press portion from said array unit.

9. The automatic packaging plastic feeding apparatus according to claim 5, wherein the plastic arranging section further comprises a tension adjusting section disposed at a rear end of the sticking section for adjusting tension of the multilayered plastic.

10. The automatic packaging plastic feeding apparatus according to claim 9, wherein the plastic arranging section further comprises a second transfer roller composed of a pair of rollers engaged with each other, disposed at a rear end of the tension adjusting section, for transferring the multilayer plastic inserted inside to the packaging section.