KR20230102980A - a mold for wet-tissue case cover, a system for take out and foldable applying that mold - Google Patents

Abstract

The present invention consists of a pair of left and right molds in which a cover molding part having a cavity and a body molding part are connected so as to simultaneously mold a plurality of wet tissue caps made of a multiple of 4 when the cover and the body are formed, and one sprue is formed with a unit passage and The unit flow path is connected to the sprue and consists of a main runner arranged in an X shape and four gates connected to the main runner to simultaneously mold four wet tissue caps, selected from a horizontal flow path or a vertical flow path It relates to a mold for a wet tissue cap made of one or more and connected to an intersection of main runners, and a take-out and folding system to which the mold is applied.

Description

Mold for wet tissue cap, take-out and folding system with mold applied {a mold for wet-tissue case cover, a system for take out and foldable applying that mold}

The present invention consists of a pair of left and right molds in which a cover molding part having a cavity and a body molding part are connected so as to simultaneously mold a plurality of wet tissue caps made of a multiple of 4 when the cover and the body are formed, and one sprue is formed with a unit passage and The unit flow path is connected to the sprue and consists of a main runner arranged in an X shape and four gates connected to the main runner to simultaneously mold four wet tissue caps, selected from a horizontal flow path or a vertical flow path It relates to a mold for a wet tissue cap made of one or more and connected to an intersection of main runners, and a take-out and folding system to which the mold is applied.

In general, injection molding is a technology for mass-producing moldings of various shapes by injecting molten resin into a mold, and is one of the plastic product production methods that are widely used ranging from daily necessities to various industrial products.

The injection molding process includes a filling process for filling the mold with molten resin, a holding pressure process for maintaining a constant pressure inside the mold after filling the molten resin, a cooling process for cooling the filled molten resin for a certain period of time, and a molded product after cooling. The product is produced through a mold release process that takes out the

In addition, the injection molding machine uses various types of molding machines according to the type of product to be molded or the production method. A horizontal injection molding machine that molds products, a vertical injection molding machine consisting of a structure in which a clamping part (injection mold) and a nozzle part are arranged vertically and a nozzle part is placed on top of the clamping part, and other various types of injection molding machines are used in industrial sites. there is.

In relation to this technology, a mold for manufacturing an injection product is proposed in conventional Patent No. 759953, and its configuration is a lower core 110 with an intaglio for molding an injection product as shown in FIG. 1, and an upper core 120 ) is installed.

In addition, a hot runner system 130 is installed on the upper side of the mold. The resin flow path by the hot runner system 130 is composed of a sprue 131, a runner 132, and a gate 133, and high-temperature molten resin is discharged from the end of the gate 133 to form upper and lower cores 110 ), the molten resin flows along the intaglio of (120) and molds the injection product.

In addition, the upper and lower cores are formed with intaglios for molding two molded products with a plurality of parts and a connection line connecting the parts, and the intaglio part 111 of the lower core and the intaglio part 112 of the upper core is treated, and molten resin is discharged from the end of the gate 133 in a state in which the concave portions 113 and 114 are treated, and the concave portion is filled, cooled, and extracted.

However, the mold as described above has a disadvantage in that the mold must be redesigned whenever the number of products taken out increases when designing for simultaneous molding of the same product.

In addition, there is a disadvantage in that uniform design is difficult because the variables of the mold design for the process of performing post-takeout work are not reflected.

An object of the present invention to improve the above conventional problems is to easily design runners and gates regardless of the number of molded products that are simultaneously taken out so that molds can be easily manufactured, and the type of gate, It is to provide a mold for a wet tissue cap that enables rapid mold design by unifying the number, location, and dimensions, and enables rapid take-out of molded products as well as easy design of the system, and a mold-applied take-out and folding system.

In order to achieve the above object, the present invention consists of a set of molds formed to connect the cover molding part and the body molding part for forming a cavity so as to simultaneously mold a plurality of wet tissue caps made of a multiple of 4 when the cover and the body are made,

Each unit molding part composed of a cover molding part and a body molding part forming one wet tissue cap is arranged at equal intervals in the horizontal and vertical directions on the plane,

In at least one of the molds, one sprue is connected to a plurality of unit passages, and the unit passages provide a mold for a wet tissue cap comprising a main runner connected to the sprue and four gates for simultaneous molding of four wet tissue caps.

In addition, a mold installed to simultaneously mold a plurality of wet tissue caps

When the wet tissue cap is taken out, a jig is provided so that the center is positioned on a concentric axis with the center of the sprue and moves in three dimensions,

The jig is made of a jig unit that performs a folding operation to tightly fix the cover to the body while taking out the wet tissue cap after cooling,

The jig unit includes a base block installed for three-dimensional movement through a transfer unit connected to the frame, a pad fixing block connected to the front of the base block and having a plurality of suction pads, and a rotation force connected to the base block to the cover. It is made of a bracket member that transmits,

The bracket member is composed of an operating bar for folding one or more covers, a connecting piece connected to both ends of the operating bar and hinged to the base block, and a power transmission means for transmitting rotational force to the connecting piece,

The power transmission means provides a take-out and folding system to which a mold for a wet tissue cap is installed to simultaneously rotate the connection pieces on both sides connected to rotate about a hinge axis.

In addition, the power transmission means is formed as a cylinder so that the connecting piece connected to the hinge shaft rotates around the hinge, and the connecting piece has a guide slot to which the rod of the cylinder is connected. A mold for a wet tissue cap is applied. Take-out and folding system to provide.

In addition, in the pad fixing block of the present invention, a hydraulic line for supplying vacuum pressure to the suction pad penetrates the fixing block three-dimensionally and is connected to each other, so that one inlet and a plurality of suction pads connected thereto and branched are integrally penetrated. It provides a take-out and folding system applied with a mold for wet tissue caps that are installed at the same time.

As described above, according to the present invention, regardless of the number of molded products that are simultaneously taken out, the runner and gate can be easily designed to make the mold easy, and the type, number, location, and dimensions of the gate can be unified to rapidly design the mold. is possible, and it is possible to take out the molded product quickly, and the design of the system is easy.

1 is a perspective view showing a conventional mold.
2 to 4 are front views showing the arrangement of the unit molding part of the present invention.
5 is a connection state diagram of the runner of the present invention.
Figure 6 is an overall perspective view of the mold and jig of the present invention.
7 to 9 are work flow charts for taking out and folding according to the present invention.
10 is an operating state diagram of the power transmission means of the present invention.
11 is a connection state diagram of the pad fixing block and the suction pad provided thereto according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail based on the accompanying drawings.

When the wet tissue cap mold 100, the cover 210, and the body 230 of the present invention are formed, the cover molding unit 110 and the body molding unit having cavities to simultaneously mold a plurality of wet tissue caps 200 made up of multiples of 4. It consists of a pair of left and right molds 100A and 100B to which 130 is connected.

And, in the mold 100, each unit molding part (UF) composed of a cover molding part 110 and a body molding part 130 forming one wet tissue cap 200 is in the horizontal and vertical directions on a plane, etc. placed at intervals.

In addition, at least one sprue 310 of the mold 100 is connected to a plurality of unit passages 320 through a main runner 390, and the unit passage 320 is connected to the sprue 310. It consists of a connected subrunner 330 and four gates 340 that simultaneously mold four wet tissue caps.

That is, the main runner 390 of the present invention is connected to the intersection point P of the sub-runners while being composed of a horizontal flow path 391 and a longitudinal flow path 393.

In addition, the subrunners 330 of the present invention are arranged to have substantially the same distance from the intersection point to each gate in a crossing configuration.

Further, the main runner 390 is composed of one horizontal flow passage 391 and a plurality of longitudinal flow passages 393 intersecting therewith, and four gates are connected to each end of the vertical flow passage.

On the other hand, the system for taking out and folding the cap for wet tissue according to the present invention is composed of a mold 100 and a jig 500.

At this time, the mold 100 is integrally formed with a unit passage 320 composed of a plurality of sub-runners and gates so as to simultaneously form a plurality of wet tissue caps 200 as described above.

In addition, when the wet tissue cap 200 is taken out, a jig 500 installed to move in three dimensions while positioning the center of the sprue 310 concentrically is installed.

At this time, the jig 500 is provided with a jig unit 510 that performs a folding operation of tightly fixing the cover 210 of the wet tissue cap to the body 230 while vacuuming and taking out the wet tissue cap after cooling.

In addition, the jig unit 510 has a base block 511 installed to move in three dimensions through a runner 520 connected to the frame and a plurality of suction pads 513 while being connected to the front of the base block. It consists of a pad fixing block 515 and a bracket member 550 that is connected to the base block and transmits rotational force to the cover.

At this time, the bracket member 550 includes an operating bar 551 for folding one or more covers, a connecting piece 553 connected to both ends of the operating bar and hinged to the base block, and power transmission for transmitting rotational force to the connecting piece means 560.

In addition, the power transmission means 560 is installed to simultaneously rotate the connecting pieces 553 on both sides connected to rotate around the hinge shaft 561.

In addition, the power transmission means 560 is formed as a cylinder 561 so that the connecting piece connected to the hinge shaft rotates around the hinge, and the connecting piece is provided with a guide slot 563 to which the rod of the cylinder is connected.

In addition, the power transmission means 560 is composed of a worm 560A provided on a rotating body having a semicircle or more on the connecting piece, a worm wheel 560B provided to correspond to the worm, and a motor 560C for rotating the worm wheel 560C.

In addition, in the pad fixing block 515, the hydraulic line 519 for supplying vacuum pressure to the suction pad 513 penetrates the fixing block three-dimensionally and is connected to one inlet 514 and connected thereto. A plurality of branched suction pads are installed to penetrate integrally.

The operation of the present invention composed of the above configuration will be described.

As shown in FIGS. 2 to 11, if the mold 100 for the wet tissue cap of the present invention, the cover 210, and the body 230 are formed, a plurality of wet tissue caps 200 made up of multiples of 4 are molded at the same time. Cover molding with a cavity It consists of a pair of left and right molds 100A and 100B in which the part 110 and the body molding part 130 are connected, and a large amount of wet tissue caps can be manufactured through one molding operation.

At this time, in the mold 100, each unit molding part (UF) composed of the cover molding part 110 and the body molding part 130 forming one wet tissue cap 200 is in the horizontal and vertical directions on the plane, etc. It is arranged at intervals to optimize space utilization.

In addition, when one sprue 310 in at least one of the molds 100 is connected to a plurality of unit passages 320 through the main runner 390, each unit passage 320 is connected to the sprue 310. It consists of a sub-runner 330 and four gates 340 that simultaneously mold four wet tissue caps, and can be applied in various ways through one design without the need for a separate design when designing a mold.

In addition, the main runner 390 of the present invention is composed of a horizontal flow path 391 and a longitudinal flow path 393 and is connected to the intersection P of the sub runners, so that the connection work with each unit flow path 320 is facilitated. do.

In addition, the subrunners 330 of the present invention are arranged to have substantially the same distance from the intersection point to each gate in a cross configuration, so that raw materials supplied through each gate can be uniformly supplied.

In addition, when the main runner 390 is composed of one horizontal flow path 391 and a plurality of longitudinal flow paths 393 intersecting therewith, each of the four gates is connected to the end of the vertical flow path and is a multiple of 4. When designing a gate having , it can be easily applied and applied without a separate design.

On the other hand, the take-out and folding system for the wet tissue cap of the present invention consists of a mold 100 and a jig 500 to take out the molded wet tissue cap and then discharge it.

In addition, when the wet tissue cap 200 is taken out, a jig 500 is installed so that the center of the sprue 310 is positioned on the concentric axis and moves in three dimensions, so that the take-out position is accurately positioned to facilitate the take-out operation. It is done quickly.

At this time, the jig 500 is provided with a jig unit 510 that performs a folding operation of tightly fixing the cover 210 of the wet tissue cap to the body 230 while vacuum adsorbing and taking out the cooled wet tissue cap. In the state where the wet tissue cap is adsorbed, the cover is folded to the body so that the cover and the body are fixed to each other.

In addition, the jig unit 510 is provided with a base block 511 installed to move in three dimensions through a transfer unit 520 connected to the frame and a plurality of suction pads 513 connected to the front of the base block. It is composed of a pad fixing block 515 and a bracket member 550 connected to the base block to transmit rotational force to the cover, so that the cover can be folded and moved to a desired position in three dimensions.

At this time, the bracket member 550 includes an operating bar 551 for folding one or more covers, a connecting piece 553 connected to both ends of the operating bar and hinged to the base block, and power transmission for transmitting rotational force to the connecting piece When power is supplied, the body is rotated toward the cover by the actuating bar 551 supporting the body while the connecting piece is rotated, so that the body is folded and fixed.

In addition, the power transmission means 560 is installed to simultaneously rotate the connecting pieces 553 on both sides connected to rotate about the hinge shaft 561, so that the folding operation is possible with a simple configuration and minimal power.

In addition, the power transmission means 560 is formed as a cylinder 561 so that the connecting piece connected to the hinge shaft rotates around the hinge, and when the cylinder operates, the connecting piece connected to the cylinder rotates through the guide slot 563, folding is possible.

In addition, the power transmission means 560 consists of a worm 560A provided on a rotating body having a semicircle or more on the connecting piece and a worm wheel 560B provided to correspond to the worm and a motor 560C that rotates the motor 560C during rotation of the motor. Rotation of the worm wheel and the worm connected to each other rotates the connecting piece so that the body can be folded.

In addition, in the pad fixing block 515, a hydraulic line for supplying vacuum pressure to the suction pad 513 penetrates the fixing block three-dimensionally and is connected to one inlet 514 and a plurality of branched ones while connected thereto. Since the suction pads of are integrally installed to pass through, each suction pad connected thereto operates simultaneously when vacuum pressure is supplied through the inlet without the need to supply individual vacuum pressure to each suction pad.

100 ... mold 110 ... cover forming part
130 ... body forming part 200 ... wet tissue cap
210 ... cover 230 ... body
320...unit euro 340...gate
500 ... jig 510 ... base block
550 ... bracket member

Claims (7)

When the cover and the body are made up of a pair of left and right molds in which the cover molding part having a cavity and the body molding part are connected so as to simultaneously mold a plurality of wet tissue caps made up of multiples of 4,
Each unit molding part consisting of a cover molding part and a body molding part for molding one wet tissue cap is arranged at equal intervals in the horizontal and vertical directions on the plane,
One sprue is connected to the unit flow path,
The unit euro is
a). It consists of a main runner connected to the sprue and arranged in an X shape and four gates connected to the main runner to simultaneously mold four wet tissue caps,
b). A mold for a wet tissue cap made of one or more selected from the horizontal flow path or the vertical flow path and connected to the intersection of the main runners. The mold for a wet tissue cap according to claim 1, wherein the main runners are disposed to have substantially the same distance in an intersecting configuration. The method of claim 1, wherein the unit flow path is composed of one transverse flow path and a plurality of longitudinal flow paths crossing it,
A mold for a wet tissue cap, characterized in that four gates are disposed at each end of the longitudinal flow path. The mold for wet tissue caps according to claim 1, wherein the mold simultaneously molds 4, 8, 12, 16, and 24 wet tissue caps by one injection molding. A mold made of claim 1 and installed to simultaneously mold a plurality of wet tissue caps; And,
When the wet tissue cap is taken out, a jig installed to move in three dimensions while positioning the center of the sprue concentrically is provided,
The jig is made of a jig unit that performs a folding operation of closely fixing the cover to the body while taking out the wet tissue cap that has been cooled,
The jig unit includes a base block installed for three-dimensional movement through a transfer unit connected to the frame, a pad fixing block connected to the front of the base block and having a plurality of suction pads, and a rotation force connected to the base block to the cover. It is made of a bracket member that transmits,
The bracket member is composed of an operating bar for folding one or more covers, a connecting piece connected to both ends of the operating bar and connected to the base block by a hinge shaft, and a power transmission means for transmitting rotational force to the connecting piece,
The power transmission means is a take-out and folding system to which a mold for a wet tissue cap is installed to simultaneously rotate the connecting pieces on both sides connected to rotate about a hinge axis. The method of claim 5, wherein the power transmission means is made of a cylinder so that the hinged connecting piece rotates around the hinge,
The take-out and folding system to which the mold for the wet tissue cap is applied, characterized in that the connecting piece is provided with a guide slot to which the rod of the cylinder is connected. The method of claim 5, wherein the pad fixing block is connected to each other through a hydraulic line for supplying vacuum pressure to the suction pad through the fixing block three-dimensionally, so that one inlet and a plurality of suction pads connected thereto and branched are integrated. A take-out and folding system with a mold for a wet tissue cap, characterized in that it is installed to be connected through.

Images