KR102368060B1 - Vacuum sucker for feeding material with embossed surface and input device therewith - Google Patents

Abstract

The present invention relates to a vacuum sucker and, more specifically, to a vacuum sucker for transferring a material having an embossed surface and an input device including the same. To achieve the purpose, the vacuum sucker which is brought into tight contact with an embossed surface (272) of a material to generate negative pressure to lift the material includes: a sucker body (115) movable vertically and laterally in the vicinity of the surface of the material, and having controllable internal pressure; a socket (120) insertable into an end part of the sucker body (115), and having an inlet hole (125) formed to be connected to the sucker body (115); a tight contact pad (130) having a first upper center hole (132) assembled between the sucker body (115) and the socket (120); and an internal pad (300) having a second upper center hole (132) assembled between the first upper center hole (132) and the socket (120).

Description

A vacuum sucker for feeding material having an embossed surface and an input device including the same

The present invention relates to a vacuum sucker, and more particularly, to a vacuum sucker for transferring a material having an embossed surface and a feeding device including the same.

In general, a vacuum sucker is used to lift and transport a sheet-shaped material such as paper or vinyl. 1 is a schematic configuration diagram of a processing apparatus for input, cutting, and loading of the embossing paper 150, and FIG. 2 is a perspective view of the cut embossing paper 270 loaded on the loading unit 280 of FIG. . As shown in FIGS. 1 and 2 , the embossing paper 150 is a flooring paper positioned on the bottom of the pizza box and spread on the bottom of the pizza. By forming a plurality of small embossing 272 on the surface, the pizza does not stick to the embossing paper 150 .

As shown in Fig. 1, the embossing paper 150 has a size of 903 mm x 650 mm in width, and a number of embossing 272 is formed on the surface. The height of the embossing 272 is approximately 0.4 mm to 0.6 mm, and the spacing is equal to every direction of 3 to 6 mm.

In the input unit 100, a plurality of embossing paper 150 is stacked, and 4 to 6 vacuum suckers 110 are provided on the upper part. The vacuum sucker 110 can be reciprocally transferred up and down by a separate driving device, and can be transferred left and right up to the transfer unit 200 . The vacuum sucker 110 is provided with a separate air pump (or compressor), an accumulator, a pressure sensor, a pressure regulator, a venturi, an air valve, and the like.

When the vacuum sucker 110 descends and touches the embossing paper 150 , it forms a negative pressure (pressure lower than atmospheric pressure or vacuum) to adsorb the embossing paper 150 . The adsorbed embossing paper 150 is loaded into the transfer unit 200 by lifting only one sheet. In the transfer unit 200 , it is transferred at a constant speed by a pair of rollers 210 .

In the cutting unit 250, a cutter (not shown) acts (refer to the direction of the arrow) from the top and bottom on the transferred embossing paper 150 to cut the circular cutting line 274 corresponding to the shape of the pizza. At this time, the cutting line 274 is not cut in a completely circular shape, but a part forms a bridge with the embossing paper so that it is attached to the cut embossing paper 270 as it is.

The cut embossing paper 270 is stacked one by one in the loading unit 280 and is easily separated into a circle in the next process. The separated circular embossing paper is put inside the pizza box.

3 is a cross-sectional view of the vacuum sucker 110 shown in FIG. 1 , and FIG. 4 is a perspective view of the contact pad 130 shown in FIG. 3 . As shown in FIGS. 3 and 4 , the contact pad 130 is formed of a flexible rubber material and is in close contact with the upper surface of the embossing paper 150 to form a negative pressure therein.

However, such a conventional vacuum sucker has the following problems.

First, due to the embossing 272 formed on the surface of the embossing paper 150 , the contact pad 130 cannot be in close contact and a gap 140 is formed. As external air rapidly flows through the gap 140 , a sufficient negative pressure is not formed inside the contact pad 130 . Due to this, the vacuum sucker 110 fails to lift the embossing paper 150 .

Second, in order to solve the above-described problem of the vacuum sucker 110, there was a case in which the sound pressure was more strongly adjusted. By the way, some of the six vacuum suckers 110 used to pick up a sheet of embossing paper 150 are lifted, and some of the embossing papers 150 are non-uniform cases of failure to lift. However, since the negative pressure is strong, when the negative pressure is released for input of the transfer unit 200 , the embossing paper 150 cannot be separated smoothly and remains attached to the vacuum sucker 110 as it is. In this case, the embossing paper 150 was torn, the equipment was stopped, and the torn embossing paper 150 was manually removed.

As described above, with the conventional vacuum sucker 110 , it was difficult to adsorb and pull up the embossing paper 150 due to the geometric shape of the embossing paper 150 , and even if the pneumatic pressure was strongly controlled, a smooth continuous process was difficult.

1. Republic of Korea Patent Registration No. 10-1355860 (guide integrated vacuum sucker), 2. Republic of Korea Utility Model Publication No. 20-2012-0006481 (air sucker for connecting yarn winding).

Accordingly, the present invention has been devised to solve the above problems, and an object of the present invention is to provide a vacuum sucker for transferring a material having an embossed surface and an input device including the same.

However, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned are clearly to those of ordinary skill in the art to which the present invention belongs from the description below. can be understood

In order to achieve the above technical task, in the vacuum sucker that lifts the material by generating negative pressure in close contact with the embossing 272 surface of the material, it is possible to move up and down or left and right near the surface of the material, and the internal pressure is controlled Sucker body 115 being; The socket 120 is insertable at the end of the sucker body 115, the suction hole 125 communicating with the sucker body 115 is formed; The first upper center hole 132 is a contact pad 130 that is assembled between the sucker body 115 and the socket 120; and an inner pad 300 in which the second upper central hole 132 is assembled between the first upper central hole 132 and the socket 120; Sucker is provided.

In addition, the adhesion pad 130 has an inverted funnel shape connecting the first upper center hole 132 and the first adhesion part 135 , and the first adhesion part 135 is in close contact with the embossing 272 surface.

In addition, the inner pad 130 has an inverted funnel shape connecting the second upper center hole 310 and the second contact part 320 , and the second contact part 320 is in close contact with the embossing 272 surface.

In addition, the inner pad 300 includes one of rubber, leather, urethane, silicone, and synthetic resin material.

In addition, the diameter of the first contact portion 135 in close contact with the embossed surface of the contact pad 130 is 30 to 40 mm, and the diameter of the second contact portion 320 in close contact with the embossed surface of the inner pad 300 is 20 ~29mm.

In addition, the thickness of the inner pad 300 is relatively thinner than the thickness of the contact pad 130 .

In addition, the second contact portion 320 in close contact with the embossed surface of the inner pad 300 forms 3 to 6 waveforms along the circumferential direction.

Further, the embossing 272 has a pitch of 3 to 6 mm, and the material is paper.

The object of the present invention as described above, as another embodiment, can also be achieved by the material input device, characterized in that it includes at least one vacuum sucker described above.

According to an embodiment of the present invention, it is possible to reliably adsorb and pull up a material having an embossed surface, so that the material can be smoothly supplied. This made it possible to achieve high-speed production and continuous operation without stopping.

In addition, by lowering the negative pressure formed inside the vacuum sucker, there is a reliability that is reliably separated from the vacuum sucker when the material is separated.

In addition, since the structure of the existing vacuum sucker can be maintained almost as it is, an additional structural change or facility investment cost does not occur, and it has the advantage of being easy to apply to conventional production equipment.

However, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. will be able

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical spirit of the present invention together with the detailed description of the present invention to be described later, so that the present invention is described in such drawings It should not be construed as being limited only to
1 is a schematic configuration diagram of a processing device for input, cutting, and loading of the embossing paper 150;
Figure 2 is a perspective view of the cut embossing paper 270 loaded on the loading part 280 of Figure 1,
Figure 3 is a cross-sectional view of the vacuum sucker 110 shown in Figure 1,
4 is a perspective view of the contact pad 130 shown in FIG.
5 is an exploded perspective view of a vacuum sucker for transferring a material having an embossed surface according to an embodiment of the present invention;
6A is a bottom view of the first embodiment of the inner pad 300 shown in FIG. 5;
Figure 6b is a bottom view of the second embodiment of the inner pad 300 shown in Figure 5;
7 is a cross-sectional view of the vacuum sucker 110 shown in FIG.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art can easily carry out the present invention. However, since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiment described in the text. That is, since the embodiment may have various changes and may have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, it should not be understood that the scope of the present invention is limited thereby.

The meaning of the terms described in the present invention should be understood as follows.

Terms such as “first” and “second” are for distinguishing one component from another, and the scope of rights should not be limited by these terms. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component. When a component is referred to as “connected” to another component, it may be directly connected to the other component, but it should be understood that other components may exist in between. On the other hand, when it is mentioned that a certain element is "directly connected" to another element, it should be understood that the other element does not exist in the middle. Meanwhile, other expressions describing the relationship between elements, that is, "between" and "between" or "neighboring to" and "directly adjacent to", etc., should be interpreted similarly.

The singular expression is to be understood to include the plural expression unless the context clearly dictates otherwise, and terms such as "comprises" or "have" refer to the specified feature, number, step, action, component, part or these It is intended to indicate that a combination exists, and it is to be understood that it does not preclude the possibility of the existence or addition of one or more other features or numbers, steps, operations, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Terms defined in the dictionary should be interpreted as being consistent with the meaning of the context of the related art, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present invention.

configuration of the embodiment

Hereinafter, the configuration of the preferred embodiment will be described in detail with reference to the accompanying drawings. 5 is an exploded perspective view of a vacuum sucker for transferring material having an embossed surface according to an embodiment of the present invention; As shown in FIG. 5 , the vacuum sucker 110 can be reciprocally transferred up and down by a separate driving device (eg, a pneumatic cylinder), and can be transferred left and right to the transfer unit 200 . The vacuum sucker 110 is provided with a separate air pump (or compressor), an accumulator, a pressure sensor, a pressure regulator, a venturi, an air valve, and the like. Two to eight of these vacuum suckers 110 are provided, and they may be operated simultaneously or may be divided into two groups and operated sequentially.

When the vacuum sucker 110 descends and touches the embossing paper 150 , it forms a negative pressure (pressure lower than atmospheric pressure or vacuum) to adsorb the embossing paper 150 . The adsorbed embossing paper 150 is loaded into the transfer unit 200 by lifting only one sheet.

The sucker body 115 is a hollow cylinder member, movable up and down or left and right near the surface of the material, and the air pressure therein is controlled. A body ball 117 is formed in the inside of the circle body 115 along the axial direction.

The adhesion pad 130 has a first upper center hole 132 penetrating through the upper portion, and the first adhesion portion 135 is formed at the lower end thereof, and has an inverted funnel shape as a whole. The contact pad 130 is assembled between the sucker body 115 and the inner pad 300, and is molded of rubber, silicone, urethane, leather, synthetic resin, and the like. The diameter of the first contact portion 135 in close contact with the embossing 272 surface of the contact pad 130 is 30 to 40 mm, and the thickness is about 1 mm to 2 mm.

The inner pad 300 has a second upper center hole 310 penetrating through the upper portion, and a second contact portion 320 formed at the lower end, and has an inverted funnel shape as a whole. The inner pad 300 is assembled between the contact pad 130 and the socket 120, and is molded of rubber, silicone, urethane, leather, synthetic resin, or the like. The diameter of the second contact portion 320 in close contact with the embossing 272 surface of the inner pad 300 is 20 to 29 mm, and the thickness is about 0.3 mm to 0.8 mm.

Since the diameter of the second contact portion 320 is smaller than the diameter of the first contact portion 135 , the inner pad 300 is easily assembled inside the contact pad 130 , and the contact pad 130 and the inner pad 300 are easily assembled. ) can form a space between them. Since this space acts as a buffer space (buffer) between the atmospheric pressure and the internal negative pressure, the internal negative pressure can be kept more airtight.

The thickness of the inner pad 300 is manufactured to be thinner than the thickness of the contact pad 130 . Due to this, the inner pad 300 has higher flexibility than the adhesion pad 130 , and can better adhere to the small gap between the embossing pads 272 .

The inner pad 300 starts from the second upper center hole 310 and gradually increases in the circumferential direction to the second contact portion 320 to form a waveform 330 . 3 to 6 waveforms 330 may be formed, and FIGS. 6A and 6B are examples. 6A is a bottom view of the first embodiment of the inner pad 300 shown in FIG. 5, in which four waveforms 330a are formed along the circumferential direction. 6B is a bottom view of the second embodiment of the inner pad 300 shown in FIG. 5, in which five waveforms 330b are formed along the circumferential direction.

The waveform 330 of such a floral pattern (fire shape) performs a function of making the second contact portion 320 more closely contact the surface of the embossing 272 or between the embossing 272 and the embossing paper 150 . do.

The socket 120 is a metal material, and is a cylindrical member in which the suction hole 125 is formed along the inner axial direction. The socket 120 is fitted into the body hole 117 of the circle body 115 . After the adhesion pad 130 and the inner pad 320 are overlapped, the first and second upper center holes 132 and 310 are inserted into the body hole 117 and inserted through the socket 120 to complete the assembly.

operation of the embodiment

Hereinafter, the operation of the preferred embodiment will be described in detail with reference to the accompanying drawings. First, the material shown and described in the embodiment of the present invention may be a sheet of paper, vinyl, synthetic resin, or metal plate on which the embossing 150 is formed. As a preferred embodiment, as shown in FIG. 2, it may be an embossing paper 150 supporting the pizza inside the pizza packaging box. The embossing paper 150 has a size of 903 mm x 650 mm in width, and a plurality of embossing 272 is formed on the surface. The height of the embossing 272 is approximately 0.4 mm to 0.6 mm, and the spacing is equal to every direction of 3 to 6 mm.

7 is a cross-sectional view of the vacuum sucker 110 shown in FIG. As shown in FIG. 7 , first, while a low negative pressure is generated inside the sucker body 115 , the vacuum sucker approaches and adheres to the upper surface of the embossing paper 150 .

At this time, the contact pad 130 is in close contact over about eight embossing 272 (see FIG. 7 ). At this time, a gap 140 may be generated between the embossing 272 and the contact pad 130 . And, the inner pad 300 is in close contact with about six embossing 272 (refer to FIG. 7). The inner pad 300 forms a space between it and the contact pad 130 to prevent the external atmospheric pressure from directly affecting the negative pressure of the vacuum sucker.

In addition, the inner pad 300 can sufficiently maintain the internal sound pressure due to the flexibility due to the thinner thickness and the shape matching with the embossing 272 due to the plurality of waveforms 330 . For this reason, the vacuum sucker 110 can be pulled up by adsorbing the embossing paper 150 without failure, and can be put into the next process without hindrance. In addition, when the negative pressure is released by lowering the negative pressure formed inside the vacuum sucker, it is easily removed by the weight of the embossing paper 150 .

The detailed description of the preferred embodiments of the present invention disclosed as described above is provided to enable any person skilled in the art to make and practice the present invention. Although the above has been described with reference to preferred embodiments of the present invention, it will be understood by those skilled in the art that various modifications and changes can be made to the present invention without departing from the scope of the present invention. For example, those skilled in the art can use each configuration described in the above-described embodiments in a way in combination with each other. Accordingly, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention. Accordingly, the above detailed description should not be construed as restrictive in all respects but as exemplary. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are included in the scope of the present invention. The present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, claims that are not explicitly cited in the claims may be combined to form an embodiment, or may be included as new claims by amendment after filing.

100: input unit,
110: vacuum sucker,
115: Sucker body,
120: socket;
125: suction hole,
130: adhesion pad,
132: upper central hole,
135: adhesion part,
140: gap,
150: embossing paper,
200: transfer unit,
210: roller,
250: cutting unit,
270: cut embossing paper,
272: embossing,
274: cutting line,
280: loading part,
300, 300a, 300b: inner pad,
310, 310a, 310b: the second upper central hole,
320, 320a, 320b: a second contact part;
330: Waveform.

Claims (10)

In a vacuum sucker that lifts the material by being in close contact with the embossing 272 surface of the material and generating a negative pressure,
a sucker body 115 movable up and down or left and right near the surface of the material, the internal pressure of which is controlled;
A socket 120 that is insertable into the end of the sucker body 115 and has a suction hole 125 communicating with the sucker body 115 is formed;
The first upper center hole 132 is assembled between the sucker body 115 and the socket 120, and has an inverted funnel shape connecting the first upper center hole 132 and the first contact portion 135. , a contact pad 130 in which the first contact portion 135 is in close contact with the embossing 272 surface; and
A second upper center hole 132 is assembled between the first upper center hole 132 and the socket 120 , and connects the second upper center hole 310 and the second contact part 320 . Including; and;
The diameter of the first contact portion 135 in close contact with the embossing surface is 30 to 40 mm,
The diameter of the second contact portion 320 in close contact with the embossing surface is 20 ~ 29mm,
The thickness of the inner pad 300 is relatively thinner than the thickness of the contact pad 130,
A vacuum sucker for the transfer of material having an embossed surface, characterized in that the second contact portion 320 in close contact with the embossed surface of the inner pad 300 forms 3 to 6 waveforms along the circumferential direction. delete delete The method of claim 1,
The inner pad 300 is a vacuum sucker for transferring a material having an embossed surface, characterized in that it comprises one of rubber, leather, urethane, silicone, and synthetic resin material. delete delete delete delete The method of claim 1,
The embossing 272 has a pitch of 3 to 6 mm,
A vacuum sucker for conveying material having an embossed surface, characterized in that the material is paper. 10. A material input device comprising at least one vacuum sucker according to any one of claims 1, 4 and 9.

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