KR102583187B1 - Synthetic resin bag molding manufacturing equipment - Google Patents

Abstract

One embodiment of the present invention is a synthetic resin bag molding manufacturing apparatus for molding a plastic pouch unrolled from a pouch roll into a unit plastic bag, comprising: a pouch guide unit; Heat bonding press unit; A tension bar unit including one or more tension bars that suppress bending of the thermally bonded portion that has passed through the thermal bonding press unit; A pouch friction transfer unit including a first friction part and a second friction part disposed vertically, wherein the first friction part includes a first axis, a second axis spaced rearward from the first axis, and is installed to penetrate the first axis. It includes a plurality of ring pads and an elastic friction member sandwiched between the adjacent ring pads and coupled to the first shaft and the second shaft in the form of a belt, wherein the second friction portion is formed in the same manner as the first friction portion. A pouch friction transfer unit having a first shaft, a second shaft, a ring pad, and an elastic friction member; and an envelope post-processing unit. It provides a synthetic resin envelope molding and manufacturing apparatus, characterized in that it includes a bag post-processing unit.

Description

Synthetic resin bag molding manufacturing equipment}

The present invention relates to a synthetic resin envelope molding and manufacturing apparatus, and more specifically, to a synthetic resin envelope molding and manufacturing apparatus that manufactures plastic bags with more consistent quality and high efficiency.

In general, plastic bags are manufactured by transporting tube-shaped vinyl fabric in a surface state, heat-sealing it at regular intervals, and forming a perforation line or cutting the heat-sealed portion on one side. Among such plastic bag packaging machines, plastic bags with perforation lines can be manufactured in a state of being rolled up from the discharge end, or can be completed by cutting the perforation line portion and stacking them.

Such plastic bags are also being used in large quantities to deliver goods in the recently revitalized courier industry. Accordingly, there is a growing demand for the manufacture of plastic bags in large quantities and with consistent quality in a baling machine. However, plastic pouches for manufacturing plastic bags are transported with thin vinyl tubes facing each other, and when they are in strong contact with rollers, the possibility of damage or deformation on the surface increases, making transport using appropriate friction difficult. In addition, when rolling while making surface contact with the vinyl pouch with a rubber material or plastic roller surface, damage or deformation is likely to occur on the surface of the plastic bag, and there is a risk of excessive tension being applied to the heat bonded part. and molding equipment are required.

The technical problem to be achieved by the present invention is to provide a synthetic resin bag molding manufacturing device that manufactures plastic bags with more consistent quality and high efficiency.

The technical problem to be achieved by the present invention is to provide a synthetic resin bag molding manufacturing device that accurately transports a plastic pouch without damage with appropriate friction force for the production of plastic bags.

The technical problem to be achieved by the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below. There will be.

In order to achieve the above technical problem, one embodiment of the present invention is a synthetic resin bag molding manufacturing apparatus for molding plastic pouches unrolled from a pouch roll into unit plastic bags, wherein a plurality of rows of vinyl pouches unrolled from a plurality of pouch rolls are formed on the upper side. or a pouch guide unit including one or more guide bars that guide and align the pouch guide to cross downward; A heat bonding press unit that periodically presses a plurality of rows of plastic pouches that have passed through the pouch guide unit in a row direction to form a heat bonding portion so that each row of plastic pouches is divided into unit plastic bags; A tension bar unit installed at the rear of the thermal bonding press unit and including one or more tension bars that guide the plurality of rows of vinyl pouches that have passed through the heat bonding press unit to rise and then lower to suppress bending of the heat bonding portion; A pouch friction transfer unit including a first friction part and a second friction part disposed vertically, wherein the first friction part includes a first axis, a second axis spaced rearward from the first axis, and is installed to penetrate the first axis. It includes a plurality of ring pads and an elastic friction member sandwiched between the adjacent ring pads and coupled to the first shaft and the second shaft in the form of a belt, wherein the second friction portion is formed in the same manner as the first friction portion. It has a first shaft, a second shaft, a ring pad, and an elastic friction member, and a plurality of rows of vinyl pouches discharged from the tension bar unit flow between the ring pad of the first friction portion and the ring pad of the second friction portion. a pouch friction transfer unit guided by an elastic friction member and discharged between the second axis of the first friction unit and the second axis of the second friction unit; and a bag post-processing unit configured to periodically cut the heat-bonded portions of the plurality of rows of plastic pouches discharged from the pouch friction transfer unit to separate them into the unit plastic bags, or to wind the plurality of rows of vinyl pouches; It provides a synthetic resin envelope molding manufacturing device, characterized in that it includes.

In an embodiment of the present invention, the elastic friction member is a coil spring, and the coil spring does not contact the vinyl pouch as it is inserted between the ring pads, but is exposed to the outer surface of the second axis and is in contact with the vinyl pouch. There may be friction.

In an embodiment of the present invention, the coil spring may include a first hook formed at one end, and a second hook formed at the other end and caught by the first hook.

In an embodiment of the present invention, the first shaft and the second shaft are installed, and may further include a shaft support portion capable of adjusting the distance between the first shaft and the second shaft.

In an embodiment of the present invention, a guiding ring coupled to at least one of the guide bar and the tension bar to be positioned on both sides of each vinyl pouch to guide the position of the plurality of rows of vinyl pouches passing through the guide bar and the tension bar. It may further include ;.

According to an embodiment of the present invention, it is possible to provide a synthetic resin bag molding manufacturing apparatus that manufactures plastic bags with more consistent quality and high efficiency.

According to an embodiment of the present invention, it is possible to provide a synthetic resin bag molding manufacturing device that accurately transports a plastic pouch without damage with appropriate friction force for manufacturing a plastic bag.

According to an embodiment of the present invention, the vinyl pouch can be transported efficiently by guiding the vinyl pouch using a guiding ring.

The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

Figure 1 is a photograph showing the apparatus for molding and manufacturing synthetic resin envelopes according to an embodiment of the present invention from the pouch roll side.
Figures 2 and 3 are photographs showing the heat bonding press unit of the synthetic resin envelope molding and manufacturing apparatus shown in Figure 1.
FIG. 4 is a photograph showing the pouch friction transfer unit of the synthetic resin envelope molding and manufacturing apparatus shown in FIG. 1.
Figure 5 is a diagram showing a synthetic resin envelope molding and manufacturing apparatus according to an embodiment of the present invention.
FIG. 6 is a diagram for explaining the pouch friction transfer unit of the synthetic resin envelope molding and manufacturing apparatus shown in FIG. 5.
FIG. 7 is a photograph for explaining the pouch friction transfer unit of the synthetic resin envelope molding and manufacturing apparatus shown in FIG. 5.
FIG. 8 is a diagram illustrating the inflow and transfer of a vinyl pouch between the ring pad of the first friction portion and the ring pad of the second friction portion shown in FIG. 6.
FIG. 9 is a diagram for explaining the introduction and transfer of a vinyl pouch between the second axis of the first friction part and the second axis of the second friction part shown in FIG. 6.
FIG. 10 is a diagram for explaining how the distance between the first axis and the second axis shown in FIG. 6 is adjusted.
FIG. 11 is a diagram for explaining the guiding shown in FIG. 6.

Since the present invention can be subject to various changes and have various forms, specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific disclosed form, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. While describing each drawing, similar reference numerals are used for similar components.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings.

Figure 1 is a photograph showing the synthetic resin envelope molding and manufacturing apparatus 100 according to an embodiment of the present invention from the pouch roll 20 side. Figures 2 and 3 are photographs showing the heat bonding press unit 120 of the synthetic resin envelope molding and manufacturing apparatus 100 shown in Figure 1. FIG. 4 is a photograph showing the pouch friction transfer unit 140 of the synthetic resin envelope molding and manufacturing apparatus 100 shown in FIG. 1. Figure 5 is a diagram showing a synthetic resin envelope molding and manufacturing apparatus 100 according to an embodiment of the present invention.

The synthetic resin bag molding manufacturing device 100 of this embodiment is used as a device for molding the plastic pouch unrolled from the pouch roll 20 into a unit plastic bag. Here, the plastic bag represents synthetic resin materials for convenience, and is not necessarily limited to vinyl materials. Plastic bags can have a variety of uses, including for packaging wires and parts, and for food packaging. The pouch roll 20 may be provided as a product with a rolled vinyl pouch. As shown in FIG. 1, a plurality of pouch rolls 20 are installed on the support so that a plurality of rows of vinyl pouches 21 can be released. The vinyl pouch 21 may have a strip shape, and both edges of the vinyl pouch 21 may be sealed by heat bonding or heat fusion in a row direction perpendicular to the column direction in which the vinyl pouch 21 is unwound.

The synthetic resin envelope molding manufacturing device 100 may include a pouch guide unit 110, a heat bonding press unit 120, a tension bar unit 130, a pouch friction transfer unit 140, and an envelope post-processing unit 150. You can.

The pouch guide unit 110 may include one or more guide bars 111 that guide and align a plurality of rows of vinyl pouches 21 released from the plurality of pouch rolls 20. In this embodiment, a plurality of guide bars 111 are arranged up and down so that the plurality of rows of vinyl pouches 21 are guided from bottom to top and then lowered again.

2 to 5, the heat bonding press unit 120 periodically presses in the row direction the plurality of rows of vinyl pouches 21 that have passed through the pouch guide unit 110, thereby attaching pressure to the vinyl pouches 21 in each row. A heat bonded portion can be formed to separate into unit plastic bags. A plurality of rows of vinyl pouches 21 passing downward while contacting the surface of the guide bar 111 located on the lower side of the guide bars 111 of the pouch guide unit 110 are placed on the base plate as shown in FIG. 2. While being transported, it may flow into the press unit 121 of the thermal bonding press unit 120. The press unit 121 is a heat bonding or heat fusion press extending in the row direction, and can perform heat bonding or heat fusion by periodically pressing a plurality of vinyl pouches 21 while reciprocating up and down. Accordingly, thermally bonded portions may be formed in each vinyl pouch 21 at regular intervals.

The tension bar unit 130 is installed at the rear of the thermal bonding press unit 120 and may include a plurality of tension bars 131, 132, and 133. A plurality of rows of vinyl pouches 21 that have passed through the thermal bonding press unit 120 are in contact with the surface of the first tension bar 131 and are transferred downward, and then in contact with the surface of the second tension bar 132 located on the upper side. After passing over to , it can be lowered again and brought into contact with the surface of the third tension bar 133 and transported downward. In this way, by being transported while being unfolded while receiving a slight tensile force by a plurality of tension bars, wrinkling, excessive wrinkling, or bending in the thermally bonded portion formed by the heat bonding press unit 120 can be suppressed.

FIG. 6 is a diagram for explaining the pouch friction transfer unit 140 of the synthetic resin envelope molding and manufacturing apparatus 100 shown in FIG. 5. FIG. 7 is a photograph for explaining the pouch friction transfer unit 140 of the synthetic resin envelope molding and manufacturing apparatus 100 shown in FIG. 5. FIG. 8 illustrates the inflow and transfer of the vinyl pouch 21 between the ring pad 1413 of the first friction portion 141 and the ring pad 1423 of the second friction portion 142 shown in FIG. 6. This is a drawing for Figure 9 shows the inflow and transfer of the vinyl pouch 21 between the second axis 1412 of the first friction part 141 and the second axis 1422 of the second friction part 142 shown in Figure 6. This is a drawing for explanation.

The pouch friction transfer unit 140 may provide frictional force to transfer a plurality of rows of vinyl pouches 21 forward after passing the tension bar unit 130. The pouch friction transfer unit 140 may include a first friction part 141 and a second friction part 142 arranged vertically. The first friction portion 141 includes a first shaft 1411, a second shaft 1412 spaced rearward from the first shaft 1411, and a plurality of ring pads 1413 installed to penetrate the first shaft 1411. ) and an elastic friction member 1414 sandwiched between adjacent ring pads 1413 and coupled to the first shaft 1411 and the second shaft 1412 in the form of a belt. Like the first friction part 141, the second friction part 142 has a first shaft 1421, a second axis 1422, a ring pad 1423, and an elastic friction member 1424. It may be placed below (141). A plurality of rows of vinyl pouches 21 discharged from the tension bar unit 130 are introduced between the ring pad 1413 of the first friction part 141 and the ring pad 1423 of the second friction part 142 and are elastic. It is guided by the friction members 1414 and 1424 and can be discharged between the second axis 1412 of the first friction part 141 and the second axis 1422 of the second friction part 142.

A plurality of ring pads 1413 and 1423 may be coupled to each of the first shafts 1411 and 1421 so as to penetrate the plurality of ring pads. Accordingly, the circumferential outer surface of the ring pad 1413 coupled to the first axis 1411 of the first friction portion faces each other. It can be arranged so as to be alternately arranged or staggered. The ring pads 1413 and 1423 may have a ring shape with a small width in the axial direction. A stepped portion 1413a on which the elastic friction members 1414 and 1424 are seated may be formed on the ring pads 1413 and 1423. Accordingly, a trench structure in which the elastic friction member 1414 can be accommodated can be formed by the two adjacent ring pads 1413. The ring pads 1413 and 1423 may be made of rubber or synthetic resin.

The first shafts 1411 and 1421 and the second shafts 1412 and 1422 may be installed so that their ends are supported on the shaft support portion 160. The elastic friction member 1414 is sandwiched between ring pads 1413 adjacent to each other in the direction of the first axis 1411 and is caught on the second axis 1412 to be connected to the first axis 1411 and the second axis 1412. Can be combined in belt form. Elastic friction members 1414 are installed between the plurality of ring pads 1413, so that a plurality of elastic friction members 1414 can be installed at narrow intervals as shown in FIGS. 4 and 5. Therefore, even for a relatively narrow vinyl pouch 21, one or more elastic friction members 1414 may be located within the width of the vinyl pouch 21. A plurality of rows of vinyl pouches 21 transferred to the lower surface of the third tension bar 133 of the tension bar unit 130 are positioned in the circumferential direction where the ring pads 1413 and 1423 of the first friction portion and the second friction portion face each other. It can be inserted between the outer surfaces. The vinyl pouch 21 is guided by a plurality of elastic friction members 1414 and 1424 and can be transported rearward between the second axes 1412 and 1422.

The bag post-processing unit 150 periodically cuts the heat-bonded portions of the plurality of rows of plastic pouches 21 discharged from the pouch friction transfer unit 140, as shown in FIG. 4, and separates them into unit plastic bags. Alternatively, a plurality of rows of vinyl pouches 21 can be wound.

In this embodiment, the elastic friction member 1414 is a coil spring. Alternatively, the elastic friction member 1414 may be made of a rubber band or synthetic resin. As an elastic friction member 1414, a coil spring spans the first axis 1411 and the second axis 1412 of the first friction part 141, and another coil spring is attached to the first axis 1412 of the second friction part 142. It may span the axis 1421 and the second axis 1422. As shown in FIG. 9(a), the coil spring spanning the upper first axis 1411 and the coil spring spanning the lower first axis 1421 may be installed to face each other. Alternatively, as shown in FIG. 9(b), the coil spring spanning the upper first axis 1411 and the coil spring spanning the lower first axis 1421 may be installed so that they are alternately arranged with each other offset. In this way, as the coil spring is inserted between the ring pads 1413 of the pair of first shafts 1411, the vinyl pouch 21 and the coil spring may not come into contact at that position. Meanwhile, the coil spring may be exposed to the outer surface of the second shaft 1412 and come into contact with the vinyl pouch 21.

Meanwhile, the coil spring may include a first hook formed at one end and a second hook formed at the other end and caught by the first hook. Therefore, the coil spring can be easily installed by connecting the first hook and the second hook.

The vinyl pouch 21 can be transported rearward while rubbing against the surface of the ring pad. For example, at least one of the first axis 1411 or the second axis 1412 may be rotated. When the coil spring is in contact with the vinyl pouch 21, it contracts as an elastic body, thereby preventing excessive friction on the vinyl pouch 21 and guiding the vinyl pouch 21 backward.

FIG. 10 is a diagram to explain how the distance between the first axis 1411 and the second axis 1412 shown in FIG. 6 is adjusted.

The first shaft 1411 and the second shaft 1412 are coupled to the shaft support 160 described above and can be moved forward and backward. For example, as shown in FIG. 10, the distance between the first axis 1411 and the second axis 1412 can be adjusted to increase or decrease. Therefore, the gap between the first axis 1411 and the second axis 1412 can be adjusted depending on the material or size of the vinyl pouch 21. In this case, since the coil spring itself is elongated, it can be used as is without the need to separate and reinstall it.

FIG. 11 is a diagram for explaining the guiding ring 170 shown in FIG. 6.

Meanwhile, referring to FIGS. 6 and 11, a vinyl pouch 21 is installed on at least one of the guide bar 111 at the top of the pouch guide unit 110 and the second tension bar 132 of the tension bar unit 130. A guide ring 170 may be installed to prevent the flow in the direction of movement. The guide ring 170 may be a circular magnet ring as shown in FIG. 11(a). The circular magnet ring can be divided into two and combined with the guide bar 111 and the tension bar 132 to form a ring shape. Or, in another embodiment, as shown in Figure 11 (b), the guide ring 170 is combined into two to form a ring shape, and a ball 171 is provided on the inner circumferential surface to form a guide bar 111 and It can be freely moved in the row direction along the tension bar 132. Accordingly, when the vinyl pouch 21 is transported and returns to its correct position, the ball provided on the inner circumference of the guide ring 170 rotates and the guide ring 170 may move along the vinyl pouch 21. Accordingly, unnecessary external force in the direction is prevented from being applied to the vinyl pouch 21.

According to an embodiment of the present invention, it is possible to provide a synthetic resin bag molding manufacturing apparatus that manufactures plastic bags with more consistent quality and high efficiency.

According to an embodiment of the present invention, it is possible to provide a synthetic resin bag molding manufacturing device that accurately transports a plastic pouch without damage with appropriate friction force for manufacturing a plastic bag.

According to an embodiment of the present invention, the vinyl pouch can be transported efficiently by guiding the vinyl pouch using a guiding ring.

The description of the present invention described above is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential features of the present invention. will be. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. For example, each component described as unitary may be implemented in a distributed manner, and similarly, components described as distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the patent claims described below, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention.

20: Pouch roll
100: Molding manufacturing device
110: Pouch guide unit
111: guide bar
120: Heat bonding press unit
121: Press department
130: Tension bar unit
131: first tension bar
132: 2nd tension bar
133: Third tension bar
140: Pouch friction transfer unit
141: first friction part
1411: 1st axis
1412: 2nd axis
1413: Ring pad
1414: Elastic friction member
142: second friction part
150: Envelope post-processing unit
160: shaft support
170: guiding ring

Claims (5)

In the synthetic resin bag molding manufacturing device for molding the plastic pouch unrolled from the pouch roll into a unit plastic bag,
A pouch guide unit including one or more guide bars that guide and align a plurality of rows of vinyl pouches released from a plurality of pouch rolls so that they pass over to the upper or lower side;
A heat bonding press unit that periodically presses a plurality of rows of plastic pouches that have passed through the pouch guide unit in a row direction to form a heat bonding portion so that each row of plastic pouches is divided into unit plastic bags;
A tension bar unit installed at the rear of the thermal bonding press unit and including one or more tension bars that guide the plurality of rows of vinyl pouches that have passed through the heat bonding press unit to rise and then lower to suppress bending of the heat bonding portion;
A pouch friction transfer unit including a first friction part and a second friction part disposed vertically, wherein the first friction part includes a first axis, a second axis spaced rearward from the first axis, and is installed to penetrate the first axis. It includes a plurality of ring pads and an elastic friction member sandwiched between the adjacent ring pads and coupled to the first shaft and the second shaft in the form of a belt, wherein the second friction portion is formed in the same manner as the first friction portion. It has a first shaft, a second shaft, a ring pad, and an elastic friction member, and a plurality of rows of vinyl pouches discharged from the tension bar unit flow between the ring pad of the first friction portion and the ring pad of the second friction portion. a pouch friction transfer unit guided by an elastic friction member and discharged between the second axis of the first friction unit and the second axis of the second friction unit; and
A bag post-processing unit that periodically cuts the heat-bonded portions of the plurality of rows of plastic pouches discharged from the pouch friction transfer unit to separate them into the unit plastic bags, or winds the plurality of rows of vinyl pouches; Contains,
The elastic friction member is a coil spring, and the coil spring does not contact the vinyl pouch as it is inserted between the plurality of ring pads, but is exposed to the outer surface of the second shaft and rubs against the vinyl pouch,
The coil spring includes a first hook formed at one end and a second hook formed at the other end and caught by the first hook,
The apparatus for molding and manufacturing synthetic resin envelopes further comprises a shaft support portion on which the first shaft and the second shaft are installed and capable of adjusting the distance between the first shaft and the second shaft.
delete delete delete In claim 1,
A guiding ring coupled to at least one of the guide bar and the tension bar so as to be positioned on both sides of each vinyl pouch to guide the positions of the plurality of rows of vinyl pouches passing through the guide bar and the tension bar. A synthetic resin envelope molding manufacturing device.