KR101995818B1 - Forming divice - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a molding apparatus, in which air can be injected into an inner space of a shopping bag made of a vinyl material, and then both sides of the shopping bag can be formed into an M shape, So that defects are not generated in the shopping bag during the molding process.
The molding apparatus according to the present invention includes: a conveying unit for conveying a molded article to which air is injected in an internal predetermined section; a folding unit for pressing and folding one side and the other side of the air-injected part of the molded article conveyed through the conveyance unit; And a control unit for controlling the operation of the conveyance unit depending on whether the detection unit detects the presence or absence of the molded article.

Description

[0001] FORMING DIVICE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding apparatus, and more particularly, to a molding apparatus capable of forming both sides of a shopping bag in an M-shape.

In general, once used and discarded disposable containers, the main raw material is extruded with styropor or synthetic resin and widely used.

These products are discarded as they are once used as a disposable product. Such products are those that are left in a natural environment or do not mix easily even when they are buried in the ground. They must be discarded in a state of collecting used products. It is very difficult to collect used products completely.

In other words, products discarded in amusement parks or beaches are still easy to collect, but products discarded in the mountains can not be picked up because it is very difficult to pick up the products. As they are left untreated, they become a main cause of polluting the natural environment. In order to collect the products one by one, there is a problem in that a lot of labor is mobilized, resulting in waste of manpower and economic loss.

Conventionally, in order to solve the above-mentioned conventional problems, paper made of wood as a main material is made to be in a container, and even if the used disposable container is discarded as it is, it decomposes when natural time passes, The inconvenience of collecting disposable containers abandoned in the environment is eliminated so that the natural environment is prevented from being damaged by the disposable container.

However, in this case, when the paper container is formed by using paper, a feedback phenomenon occurs due to the characteristics of the paper, and a crack occurs such as cracking of the paper. Therefore, There is a problem that the manufacturing cost increases.

Conventionally, a plurality of papers have been conveyed one by one through a conveyor belt, etc., and container vessels have been manufactured through a corrugating machine, a cutter and a molding machine. However, due to vibrations or various other factors generated in the conveyor belt itself, This is an impossible problem.

Japanese Laid-Open Patent Publication No. 10-2016-0015027

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a shopping bag, And it is an object of the present invention to provide a molding apparatus in which a proper quantity of air can be always maintained to prevent defects in a shopping bag during a molding process.

The molding apparatus according to the present invention includes: a conveying unit for conveying a molded article to which air is injected in an internal predetermined section; a folding unit for pressing and folding one side and the other side of the air-injected part of the molded article conveyed through the conveyance unit; And a control unit for controlling the operation of the conveyance unit depending on whether the detection unit detects the presence or absence of the molded article.

In addition,

A light emitting portion for emitting light, and a light receiving portion for receiving the light emitted from the light emitting portion.

The apparatus further includes a visual notifying unit installed at the conveying unit and visually alarming when the detecting unit does not detect the molded article, and an auditory notifying unit audibly alarming.

The apparatus may further include an interval adjusting unit for adjusting the interval by moving the detecting unit on the conveying unit,

Wherein the interval adjusting unit comprises:

A slide part having a fastening hole formed on one side of the conveying part so as to be slidable and having a fastening hole formed therein, a fastening part fastened to the fastening hole of the slide part, and an end pressurizing the conveying part to fix the slide part do.

In the molding apparatus according to the present invention, air is injected into an inner space of a shopping bag made of a vinyl material, and then, when forming both sides of the shopping bag into an M shape, the air bag is kept in a proper amount Can be checked in real time, thereby preventing defects from occurring in the molded shopping bags.

1 is a front view showing a molding apparatus according to the present invention;
2 and 3 are perspective views showing a frame part and a folding part applied to the molding apparatus according to the present invention;
4 is a front view showing a molding apparatus according to the present invention.
5 is a bottom perspective view showing a mold part applied to the molding apparatus according to the present invention.
6 is a front view showing a folding unit applied to the molding apparatus according to the present invention;
FIG. 7 is a plan view showing a detection unit, a visual notification unit, an audible notification unit, and a gap control unit applied to the molding apparatus according to the present invention; FIG.
8 is a block diagram showing a connection relationship between a control unit, a detection unit, a visual notification unit, and an audible notification unit applied to the molding apparatus according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings.

The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Like parts are designated with like reference numerals throughout the specification.

FIG. 1 is a front view showing a molding apparatus according to the present invention, FIGS. 2 and 3 are perspective views showing a frame part and a folding part applied to a molding apparatus according to the present invention, and FIG. 6 is a front view showing a folding unit applied to the molding apparatus according to the present invention, and Fig. 7 is a sectional view of a molding apparatus according to the present invention. Fig. FIG. 8 is a block diagram showing a connection relationship between a control unit, a detection unit, a visual notification unit, and an audible notification unit applied to the molding apparatus according to the present invention.

A molding apparatus (1) according to the present invention is a molding apparatus (1) having a double layer structure symmetrically arranged before, after, or up and down, and having both sides attached along the longitudinal direction and having a front end and a rear end opened to form a tube, (Hereinafter referred to as "molded article") through a mechanical device.

To this end, the molding apparatus 1 according to the present invention includes a transfer unit 10 for transferring a molded product P into which air is injected in a predetermined interval, A detecting unit 30 for detecting the degree of expansion of the molded product P and detecting whether a predetermined amount of air is injected into the molded product P, And a control unit (40) for controlling the operation of the transfer unit (10).

The transfer unit 10 includes a release roll 12 on which an outer periphery of the mold P is wound in the same manner as a roll of a roll, a molded product P spaced apart from the release roll 12 by a predetermined distance, A support portion 11 disposed between the release roll 12 and the take-up roll 13 and supporting the formed product P wound around the take-up roll 13; a take-up roll 13 wound in the same manner as the do- ).

The release roll 12 and the take-up roll 13 may be formed in a drum shape. Both sides of the take-up roll 12 and the take-up roll 13 are symmetrical with each other with the feed guide 112 interposed therebetween. Lt; / RTI >

In one example, the unwinding roll 12 and the winding roll 13 can be rotated in the same direction and at the same speed, receiving power from a known drive motor (not shown), respectively.

That is, the unwinding roll 12 serves to unwind the molded product P wound on the outer surface while being rotated by the driving motor, and the winding roll 13 is rotated by the driving motor, The molded product P is wound and the molded product P is passed through the conveying guide portion 112 and the folding portion 20.

At this time, in the present invention, the drive motor may be connected only to the take-up roll 13 so that the molded product P is unwound from the take-off roll 12 and the molded product P is wound around the take- .

The supporting portion 11 is constituted by a pair of two pairs of the frame portion 111 disposed between the unloading roll 12 and the take-up roll 13 and to which the unloading roll 12 and the take-up roll 13 are axially fixed And a conveyance guide part 112 slantingly installed on the frame part 111.

The frame 111 may be formed by combining a plurality of vertical bars and horizontal bars so as to have a rectangular frame shape.

An upper portion of the frame portion 111 is provided with a sealing portion 15 for preventing the outflow of air by pressing the upper and lower front and rear surfaces of the portion where the air of the molded product P is injected.

The sealing portion 15 may be formed in a circular rod shape and presses the front and rear surfaces of the molded product P in a state where the sealing portion 15 is rotatably installed on the frame portion 111.

Therefore, the sealing portion 15 has a structure that allows the molded product P to pass under pressure.

Although it is not shown in the drawing, it is a matter of course that a sealing portion capable of performing the same function as the sealing portion 15 is also provided below the frame portion 111.

The frame part 111 may be provided with a tension holding roll 14 for holding the tension of the conveying part 10 conveyed by the conveying part 10.

The tension retention rolls 14 are arranged in a spaced relation to each other at the frame part 111 so as to uniformly pressurize the front, rear, top and bottom surfaces of the molded article P in which no air is injected.

At this time, the tension holding roll 14 presses the molded product P in a state where both sides of the tension holding roll 14 are rotatably fixed to the frame part 111 so that the molded product P is entirely in a tight state.

That is, the tension holding roll 14 is rotated by the frictional force with the molded product P when the molded product P is wound around the take-up roll 13 so that the molded product P can be pressed and maintained in a tight state .

The conveyance guide part 112 supports the folded molded part of the formed product P and includes a base 1122 and a plurality of support rolls 1121 which are spaced apart from each other at regular intervals along the vertical length direction of the base 1122 ).

The base 1122 may be formed in a substantially rectangular frame shape. The base 1122 is formed of two pairs, and is disposed on the front side and the rear side of the portion of the molded product P into which the air is injected, based on FIG.

The support rollers 1121 are horizontally disposed in an inner hollow space of the base 1122 so that both sides of the support rollers 1121 are fixed to the base 1122 and can be rotated in place.

The support rolls 1121 provided on the base 1122 disposed on the front side of the molded product P are disposed on a base 1122 disposed on the rear side of the molded product P, And the other support rolls 1121 are brought into contact with the rear surface of the molded product P. [

Accordingly, the support rolls 1121 are rotated in place by friction with the molded product P when the molded product P is wound around the take-up roll 13 so that the molded product P can be smoothly transported .

At this time, the base 1122 disposed on the front side of the molded product P and the base 1122 disposed on the rear side of the molded product P gradually come closer to each other from the upper side to the lower side.

That is, the gap between the base 1122 and the support rolls 1121 gradually becomes narrower from the upper side to the lower side, and the front side of the molded product P intermittently supported by the support rolls 1121 And the distance between the rear side and the rear side gradually becomes narrower from the upper side to the lower side.

The folded portion formed by the folding portion 20 of the molded product P is gradually reduced in volume toward the sealing portion 15 positioned below the frame portion 111, And can be wound around the winding roll 13.

The folding unit 20 includes two pairs of folding units 20 for folding both sides of a portion of the molded product P conveyed through the conveying unit 10 into an approximately letter 'M' shape .

A plurality of rectangular bars 1113 for fixing the folding unit 20 are provided on the frame 111 and a fixing bar 1113 is provided along the vertical direction of one side of the folding unit 20. [ A plurality of coupling bars 21 are formed to penetrate through holes (not shown)

That is, the folding part 20 is fixed on the frame part 111 due to the fixing of the coupling bar 21 to the fixing bar 1113, and one surface of the folding part 20 presses the side surface of the molded product P .

The joining bar 21 is horizontally moved in a state of passing through the through hole of the fixing bar 1113. This allows the operator to adjust the distance between the folding portions 20 according to the width of the object Can be easily adjusted.

After the interval between the folding units 20 is adjusted, the folding unit 20 is rotated in the process of folding both sides of the molded product P by holding the combining bar 21 through a holder unit (not shown) It can be prevented from flowing.

At this time, the through-holes of the fixing bar 1113 are formed in a circular or polygonal shape, and the cross-sectional shape of the coupling bars 21 may be formed in a circular or polygonal shape conforming to the through-holes, And the through hole of the fixing bar 1113 and the coupling bar 21 are formed in a circular shape.

The holder portion is formed in a ring shape having a hollow and is mounted on the outer periphery of the coupling bar 21. The holder portion is formed at one side with a circular pin shape having a spiral hole formed therein and connected to the inside thereof, And a pressing portion (not shown) which is formed in a helical line, is fastened to the spiral hole of the mounting portion, and has an end portion thereof pressing and fixing the outer surface of the coupling bar 21. [

On the other hand, both side surfaces of the molded product P are inwardly depressed due to the pressing of the folding part 20. [

The width of the surface of the folding unit 20 which presses the molding P gradually narrows from the upper side to the lower side, and is formed in a substantially inverted triangle shape.

The gap between the front and back surfaces of both side surfaces of the molded product P is gradually narrowed in the process of passing the molded product P through the folding portion 20 by the rotation operation of the winding roll 13, Both sides of the portion passing through the folding portion 20 are folded in an approximately letter 'M' shape.

When the predetermined amount of air is not injected depending on the overall size or width of the molded product P, the folding unit 20 does not press the molded product P sufficiently, , There is a problem that the back surface is folded in a twisted state without being folded in a form that is exactly symmetrical.

Therefore, the molding apparatus 1 according to the embodiment of the present invention includes a detection unit 30 that detects whether a preset amount of air is injected into the molded product P according to the degree of expansion of the molded product P .

That is, the detection unit 30 detects in real time whether a preset amount of air is injected into the internal space of the molded product P, thereby folding the molded product P without causing any defects. A known photosensor capable of non-contact detection of the degree of expansion of the light emitting portion and a contact detection sensor capable of detecting the contact, and in the figure, the detection portion 30 is formed of a photosensor including a light emitting portion and a light receiving portion An example is shown.

In the molding apparatus 1 according to an embodiment of the present invention, the detection unit 30 includes a first light emitting unit 31, a first light receiving unit 32, a molded article P and a second light emitting portion 33 and a second light receiving portion 34 for detecting the left and right sides of the light receiving portion 33. [

Although not shown in the drawing, the light emitting units 31 and 33 and the light receiving units 32 and 34 are fixed to the frame 111 through a fixing device (not shown) such as a bracket or a holder, The light emitting units 31 and 33 and the light receiving units 32 and 34 may be spaced apart from the frame unit 111 through the gap adjusting unit 70, As shown in Fig.

Specifically, a pair of first brackets 1111 horizontally and bar-shaped are provided on the upper side of the frame 111 so as to be symmetrical to the front and back sides of the molded product P, And a pair of second brackets 1112 formed in a bar shape horizontally arranged to be symmetrical.

At this time, the first bracket 1111 and the second bracket 1112 may be combined to have a rectangular shape.

The first bracket 1111 and the second bracket 1112 are separated from the molded product P by a predetermined distance and the first bracket 1111 and the second bracket 1112 are spaced apart from each other by a spacing adjusting unit 70 So that they can be easily moved.

7, the first light emitting portion 31 is disposed on the right side of the first bracket 1111 disposed on the front side and the rear side of the molded product P, and the first light receiving portion 32 are disposed on the left side of the first bracket 1111 disposed on the front side and the rear side of the molded product P, respectively.

Accordingly, the first light emitting portion 31 and the first light receiving portion 32 are arranged to face each other with the molded product P sandwiched therebetween, and the first light receiving portion 32 receives the light emitted from the first light emitting portion 31 .

The second light emitting portion 33 is disposed on the rear side of the second bracket 1112 disposed on the left and right sides of the molded product P and the second light receiving portion 34 is disposed on the rear side of the molded product P And are disposed on the front side of the second bracket 1112 disposed on the left and right sides, respectively.

Therefore, the second light emitting portion 33 and the second light receiving portion 34 are also arranged so as to face each other with the molded product P sandwiched therebetween, and the second light receiving portion 34 irradiates the second light emitting portion 33 And receives light.

The detection unit 30 detects whether or not a preset amount of air is injected into the molded product P in a non-contact manner, and generates an electrical signal according to the detection result, and transmits the electrical signal to the control unit 40.

The seal part 15 and the frame part 111 arranged on the upper side of the frame part 111 while releasing a part of the formed product P wound on the release roll 12 and pressing the part of the formed product P on the tension holding roll 14, The transfer guide portion 112 and the sealing portion 15 disposed on the lower side of the sealing portion 15 are sequentially wound on the winding roll 13 by a predetermined length, The molded part P is pierced by a tool such as an auger and then air is injected into the inside of the molded product P by an air injecting device such as an air compressor.

When a predetermined amount of air is injected into the molded product P, the front, rear, left, and right sides of the molded product P pass through the first and second light emitting portions 31 and 33, The detection unit 30 generates a signal and transmits the signal to the control unit 40. The control unit 40 controls the operation of the control unit 40,

The control unit 40 controls the transfer unit 10 according to an electrical signal of the detection unit 30 so that the molded product P is transferred to the first light emitting units 31 and the second light emitting units 33 The driving motor connected to the unwinding roll 12 and the driving motor connected to the winding roll 13 are operated at the same time so that the molded product P is wound on the winding roll 13, So that both sides of the portion of the molded product P into which the air is injected are folded by the folding unit 20 in an alphabet 'M' shape.

At this time, the puncturing portion of the molded product P is set to be close to the sealing portion (not shown) located below the frame portion 111, So that the air injected into the inside can be prevented from flowing out.

Meanwhile, the molding apparatus 1 according to an embodiment of the present invention further includes a notification unit for informing the operator of the fact that the molded product P is poured into the molded product P0.

Specifically, the notification unit includes a visual notification unit 50 electrically connected to the control unit 40 and installed in the frame unit 111 to visually alarm the user, and an audible alarm unit 60 audibly alarmed.

The control unit 40 controls the air to be injected into the molded product P in the process of folding both sides of the molded product P in an alphabetical 'M' shape through the portion pressed by the sealed unit 15 Whereby the amount of predetermined air can not be maintained inside the molded product P, and the molded product P contracts.

In this case, since at least one of the first light receiving portions 32 receives the light emitted from the first light emitting portions 31, the detecting portion 30 generates an error signal and transmits the error signal to the control portion 40.

Upon receiving the error signal transmitted from the detection unit 30, the control unit 40 stops the operation of the conveyance unit 10 and simultaneously transmits the visual notification unit 50 and the auditory notification unit 60 So that the operator can know the fact that the air has leaked from the inside of the molded product P.

Therefore, the operator moves to the molding apparatus 1 and again punctures a part of the molding P located in the interval between the sealing portions 15 and then punctures it with a tool such as an auger, A predetermined amount of air is injected into the inside of the molded article P to perform the folding operation of the molded article P.

In this case, a known beacon may be applied to the visual notifying unit 50, and a known buzzer may be applied to the audible beacon notification unit 60.

The interval adjusting unit 70 adjusts the distance between the first light receiving units 32 and the first light emitting units 31 and the distance between the second light receiving units 34 and the second light emitting units 31, A slide fixing portion 72 for fixing the slide portion 71 to the frame portion 111 and a fixing portion 72 for fixing the slide portion 71 to the frame portion 111, .

The slide portion 71 is coupled to the first light emitting portion 31 and the first light receiving portion 32, the second light emitting portion 33 and the second light receiving portion 34 at a ratio of 1: And can be slidably mounted on the outer circumferences of the first bracket 1111 and the second bracket 1112. [

A coupling hole, which is connected to the mounting hole, is formed at one side of the slide part 71.

The pressing and fixing part 72 is formed in a circular pin shape and has a spiral formed on the outer periphery thereof and is fastened to the fastening hole of the slide part 71. The end of the fastening part 72 is connected to the first bracket 1111 or the second bracket 1112, So that the slide portion 71 is fixed.

That is, the molding apparatus 1 according to an embodiment of the present invention includes the interval adjusting unit 70 and the first light receiving unit 32 and the first light emitting unit 31 according to the size of the molded product P, And the interval between the second light receiving portions 34 and the second light emitting portions 33 can be adjusted, so that the molded product P having various sizes can be folded and formed without defects.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

1: molding apparatus 10: conveying section
11: Support part 111: Frame part
1111: first bracket 1112: second bracket
1113: Fixing bar 112: Feeding guide
1121: Base 1122: Support roll
12: unwinding roll 13: winding roll
14: tension holding roll 15: sealing portion
20: folding part 21: coupling bar
30: Detection unit 31: First light emitting unit
32: first light receiving portion 33: second light emitting portion
34: second light receiving section 40:
50: Visual notification unit 60: Auditory notification unit
70: gap adjusting portion 71:
71a: fastening hole 72:
80: holder part 81: mounting part
82:

Claims (4)

A transfer part for transferring the air-injected molding material in an internal predetermined section,
And the width of the surface to which the molded product is pressed gradually narrows from the upper side to the lower side to be formed into an inverted triangle shape , A folding unit for folding both sides of the portion into which the air is injected in an alphabet 'M' shape,
A detecting unit including a first light emitting unit and a first light receiving unit for detecting the front and rear surfaces of the molded product, a second light emitting unit for detecting a left side and a right side of the molded product,
A control unit for controlling the operation of the conveyance unit according to whether the detection unit is detected,
And an interval adjusting unit for adjusting the interval by moving the detecting unit on the conveying unit,
The transfer unit
A release roll on which an unformed molding is wound around the outer periphery,
A take-up roll spaced apart from the take-up roll by a predetermined distance,
And a support portion which is disposed between the unwinding roll and the winding roll and supports the molded product wound on the winding roll,
The support portion
A frame portion disposed between the unwinding roll and the winding roll,
And a conveyance guide portion formed of a pair of two to support a portion of the molding that is to be folded and formed,
The conveyance guide portion
A pair of bases disposed on the front side and the rear side of the portion to which the air is injected,
And a support for guiding the conveyance of the molded article while being rotated by the friction with the molded product when the molded product is wound on the take-up roll, the support being horizontally disposed in the inner hollow space of the base and being in contact with the molded product, Roll,
The base and the support rolls are arranged so as to be gradually closer to each other from the upper side to the lower side,
Wherein the interval adjusting unit comprises:
A slide part fixed to the detecting part and slidably mounted on the conveying part and having a coupling hole connected to the inner space at one side,
And a pressing and fixing unit fastened to the fastening hole of the slide part and having an end pressurizing the conveying part to fix the slide part.
delete The method according to claim 1,
Further comprising a visual notification unit installed in the conveyance unit and visually alarming the molded article when the molded article is not sensed, and an audible notification unit audibly alarming the molded article.
delete

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