JP3062536U - Sucker - Google Patents

Abstract

(57) [Summary] [Problem] There is almost no crack in an elastic material during use, and there is no drawback that airtightness, which is an important function of a suction cup, is impaired or vacuum suction cannot be performed. It is intended to provide a suction cup. An air pump has a ventilation port portion made of an elastic material such as rubber and a skirt portion extending outward therefrom, and an inner end of the skirt portion has an outer peripheral end and a ventilation port. A circumferential groove formed in a ring shape at a substantially intermediate position with the portion, and four or more vertical grooves formed from the circumferential groove toward the vent hole portion, and a vent pipe is inserted through the vent hole portion. The flange of the ventilation pipe is engaged with the inner wall of the portion, the clamp is fitted to the outer wall and the outer periphery of the ventilation port, the ventilation port is clamped between the flange of the ventilation pipe and the clamp, and the male of the ventilation pipe is inserted. A sucker characterized in that a male screw part is connected to a suction arm by projecting a screw part to the outside, and is attached to the suction arm.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention relates to suction cups, in particular, the manufacturing process is simple, the cost can be significantly reduced, and the elastic material cracks during use, which impairs the airtightness, which is an important function of the suction cups The purpose of the present invention is to provide a suction cup that has almost no vacuum and can reliably perform vacuum suction.

[0002]

[Prior art]

 In general, as a transfer system for stacking and unloading plate-like objects in multiple stages, a transfer system using vacuum suction is used because the surface of the plate-like object is scratched with a normal conveyor type. ing. In this transfer system using vacuum suction, large suction cups are arranged at predetermined intervals in a suction arm, and an air pump is connected to the suction cups. Then, each suction cup is pressed against the plate-shaped object and the inside of the suction cup is vacuum-sucked, so that the suction cup is adsorbed on the plate-shaped object, and the suction arm is moved up and down or moved horizontally to stack or unload the plate-shaped object in multiple stages. doing.

As shown in FIGS. 8 and 9, the conventional large suction cup 41 is composed of a ventilation port 42 for an air pump and a skirt 43 extending from the air pump, and is made of an elastic material such as rubber as a whole. Have been made. A core bar 44 is built around the ventilation port portion 42 by using a thick elastic material.

On the surface of the skirt portion 43, discontinuous ridges 45 are provided on the outer peripheral side, and a plurality of protrusions 46 are provided on the inner peripheral side at predetermined intervals. The ridges 45 and the projections 46 prevent the suction cup 41 from sliding on the plate-like material during pressurization.

[0005]

[Problems to be solved by the invention]

 However, in the large suction cup 41, since the elastic material of the air vent portion 42 is thick and the core metal 44 is built in, the core metal 44 is taken out and reused when it becomes unnecessary. However, it was difficult to mechanically peel off the elastic material. Therefore, at best, the elastic material was burned in an incinerator or the like and then peeled off from the mandrel 44 to collect the mandrel 44. Therefore, it is generally collected as industrial waste, and the core metal 44 and the like are hardly reused.

Further, in the large suction cup 41 described above, insert molding is required to make the elastic material of the vent portion 42 thick and to incorporate the core metal, and the molding process becomes complicated, and the production is complicated. It has the drawback that it takes time and costs cannot be reduced significantly.

Also, the obtained suction cup 41 is not well adapted to the elastic material of the vent portion 42 and the core bar 44, and peels off between the elastic material of the vent portion 42 and the core bar 44, or becomes an elastic material. Cracks were formed and the airtightness, which is an important function of the suction cup, was impaired, and the vacuum suction could not be performed.

It is to be noted that the protrusions 45 and the protrusions 46 provided on the surface of the skirt portion 43 are intended to prevent the suction cup 41 from sliding on the plate-like material during pressurization. With the projections 46, it was not possible to obtain a very reliable anti-slip action.

This invention is intended to solve the above-mentioned drawbacks of the conventional example. When it becomes unnecessary, it can be disassembled and each part can be reused, so that complicated molding steps such as insert molding are not required. Cost can be greatly reduced, and the elastic material is hardly cracked during use, and the airtightness, which is an important function of the suction cup, is impaired, and the function of vacuum suction cannot be performed. The purpose is to provide a suction cup that does not have the drawback.

[0010]

[Means for Solving the Problems]

 The suction cup of the present invention is made of an elastic material made of rubber or the like, and has a ventilation port part to the air pump and a skirt part spreading outward from the air pump part. The inner surface of this skirt part has an outer peripheral end. A circumferential groove formed in a ring shape at a substantially intermediate position between the portion and the vent portion, and four or more vertical grooves formed from the circumferential groove toward the vent portion are provided, and a vent pipe is inserted into the vent portion. Then, the flange of the ventilation pipe is engaged with the inner wall of the ventilation port part, and the clamp is fitted to the outer wall and the outer periphery of the ventilation port, and the ventilation port is clamped between the flange of the ventilation pipe and the clamping metal, and The male screw portion of the ventilation pipe is projected outside, and the male screw portion is connected to the suction arm, and is attached to the suction arm.

[0011] In the suction cup of the present invention, the vent portion abuts the outer periphery of the ventilation tube on the inner periphery, the flange of the ventilation tube abuts on the inner wall, and furthermore, a clamping fitting on the outer wall and the outer periphery. It is also characterized by little deformation upon contact.

[0012] The suction cup according to the present invention is characterized in that the clamp is formed such that an opening through which the ventilation pipe is inserted substantially coincides with the outer periphery of the ventilation pipe.

According to the suction cup of the present invention, when it is no longer necessary, it can be disassembled and each part can be reused, and a complicated molding process such as insert molding is not required, and the cost is greatly reduced. With no cracks in the elastic material during use, without the drawback that the airtightness, which is an important function of the suction cup, is impaired and the vacuum suction cannot be performed. Suckers can now be provided.

[0014]

[Embodiment of the invention]

 Hereinafter, embodiments of the suction cup of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a bottom view showing an embodiment of the suction cup of the present invention, FIG. 2 is an exploded perspective view, FIG. 3 is a sectional view thereof, FIG. 4 is a sectional view showing an assembled state, and FIG. It is sectional drawing which shows a state.

In FIG. 1 to FIG. 4, reference numeral 1 denotes a suction cup made of an elastic material such as rubber, and this suction cup 1 has a vent portion 2 to an air pump (not shown) and a skirt portion 3 which spreads out therefrom. It is composed of Then, the inside of the skirt portion 3 is evacuated by connecting the air pipe 4 held in the above-mentioned air hole portion to an air pump and sucking a vacuum to suck, for example, a plate-like object to be conveyed.

The ventilation pipe 4 is inserted into the ventilation port portion 2 from the inside and fitted to the inner periphery of the ventilation port portion 2 so that the outer periphery thereof is in close contact with the ventilation port portion 2. The above-mentioned parts are attached to the vent part 2 by engaging the flange 5.

The skirt portion 3 of the suction cup 1 has a circumferential groove 6 formed on the inner surface thereof at a predetermined interval from an end on the outer peripheral side, and a groove 1 extending from the circumferential groove 6 toward the vent portion 2. Alternatively, two or more (four in the figure) vertical grooves 7 are formed. Therefore, the suction force by the vacuum suction acts on the tip of the skirt portion 3 reliably, and the response when releasing the suction force is very good.

In FIG. 1, reference numeral 12 denotes a contact portion formed in a table shape defined by the outer periphery of the skirt portion 3 and the horizontal groove 6, and the horizontal groove 6 and the vertical groove 7, and is 1 mm or less from the horizontal groove 6 and the vertical groove 7. It is formed to have a dimensional height. The braking effect is increased by the action of each of the contact portions 12 having the steps, and a remarkable anti-slip action is exhibited as compared with the conventional anti-slip by the ridges and projections.

A clamp 8 is attached to the outer surface of the vent portion 2. The clamp 8 has a U-shaped cross section, and is fitted to the outer wall and outer periphery of the vent 2 when it is fitted into the vent 2. Therefore, the outer periphery of the ventilation pipe 4 is in contact with the inner periphery of the ventilation port portion 2, the flange 5 of the ventilation pipe 4 is in contact with the inner wall, and the clamp 8 is provided on the outer wall and the outer periphery. Since it is kept in contact, it is hardly deformed.

In particular, the clamp 8 is formed so that the opening through which the ventilation pipe 4 is inserted and the outer periphery of the ventilation pipe almost coincide with each other. The part 2 is pinched and held.

As described above, the suction cup 1 held by the ventilation pipe 4 and the clamp 8 has the male thread 9 of the ventilation pipe 4 protruding to the outside, and the male thread 9 is connected to the suction arm. , Attached to a suction arm to perform a predetermined operation.

That is, as shown in FIG. 5, the suction cup 1 attached to the suction arm 10 presses the scar part 3 against the plate-like material 11 to be conveyed and holds the suction part 3 in the above-mentioned vent part 2 in that state. The inside of the skirt portion 3 is evacuated by vacuum suction using an air pump through the ventilation pipe 4.

At this stage, since the suction cup 1 is strongly adsorbed to the plate 11 or the like, the suction arm 10 transports the plate 11 or the like to a predetermined position while holding the plate 11 or the like with the suction cup 1. can do.

When the transfer operation is completed, the suction force in the skirt portion 3 is released simply by cutting off the vacuum suction of the air pump and sending the outside air into the ventilation pipe 4. And the reactivity when releasing the adsorption power is also very good.

In the suction cup 1 of the present invention, after being detached from the suction arm 10, the clamp 8 is removed from the outer wall of the ventilation port 2 of the suction cup 1, and the ventilation pipe 4 is removed from the inner wall of the ventilation port 2. Thereby, it can be rapidly decomposed. Therefore, since each part can be easily collected and reused, the suction cup 1 of the present invention can be provided as a recyclable part.

The vent pipe 4 is inserted into the vent portion 2 from the inside and fitted to the inner periphery of the vent portion 2 so that the outer periphery thereof is in close contact with the vent portion 2. The above-mentioned parts are attached to the vent part 2 by engaging the flange 5.

The suction cup 1 of the present invention can be suitably used for conveying not only steel plates and other plate-like objects 11 but also mechanical parts, automobile parts, and various other products having a smooth surface that can be adsorbed. it can.

Incidentally, when a transverse G tensile test was performed on an aluminum plate coated with oil (actually, using CRC5-56 below) on the surface, the results shown in Table 1 were obtained. (Test item) Tensile test (Product name) Suction pad (2) (Measuring equipment) Material testing machine with high-temperature and low-temperature furnace TENSILON UCT-30T manufactured by Orientec Co., Ltd. (Measurement conditions) Measurement temperature: 27 ° C Humidity: 69% Vacuum Degree: 600 mHg to 605 mHg Load speed: 10 mm / min Kure Kogyo Co., Ltd. CRC5-56 is applied to the adsorption surface (hereinafter, blank).

[0030]

[Table 1] In the above experiment, when the object is not slippery, the comparative example with the cored bar does not deform the rubber and is strong in the side G, but when the object is slippery, on the other hand, when the object is slippery, It is thought that it becomes stronger because it absorbs shocks by rubber deformation.

In the case of the embodiment, sideslip occurs only when a load about twice that of the conventional example shown in FIGS. 8 and 9 is applied. FIG. 6 is a sectional view showing another embodiment of the suction cup of the present invention, and FIG. 7 is a sectional view showing still another embodiment.

In FIG. 6, the suction cup 1 is composed of a vent portion 2 to an air pump (not shown) and a skirt portion 3 extending therefrom, and a vent pipe 4 held at the vent portion is air pumped. And vacuum suction.

An attachment 21 is detachably attached to the male screw portion 9 of the ventilation pipe 4. The attachment 21 has a female screw portion 23 into which the male screw portion 9 of the ventilation pipe 4 is screwed at a lower portion of the base portion 22, and a concave portion 24 which communicates with the female screw portion 23 and opens on the upper surface at the upper portion. Is provided. The connection sphere 26 of the communication pipe 25 is accommodated in the recess 24. Further, a lid 27 having a tapered through hole through which the communication pipe 25 housed in the recess 24 is inserted is attached to the upper surface of the base 22 with a small screw 28. Reference numeral 29 denotes an O-ring packing for sealing between the recess 24 and the connecting sphere 26 of the communication pipe 25, and 29 ′ an O-ring packing for sealing between the lower surface of the base 22 of the attachment 21 and the clamp 8.

In the above embodiment, the male thread portion 30 of the communication pipe 25 is connected to the suction arm, so that it is attached to the suction arm to perform a predetermined operation. In addition, the base 22 can rotate along the spherical surface of the connecting sphere 26 of the communication pipe 25 attached to the recess 24, and the angle of the suction cup 1 attached to the base 22 via the ventilation pipe 4 can also be changed. Therefore, even when the angle of the suction cup 1 is inclined with respect to the steel plate or the other plate-like object 11, the suction cup 1 can easily cope by swinging the head.

In FIG. 7, the suction cup 1 is composed of a vent portion 2 to an air pump (not shown) and a skirt portion 3 extending therefrom, and a vent pipe 4 held in the vent portion is air pumped. And vacuum suction.

Reference numeral 32 denotes a communication pipe which is detachably attached to the female screw portion 9 ′ of the ventilation pipe 4 via a washer 31. The communication pipe 32 has at one end a male screw part 33 into which the female screw part 9 ′ of the ventilation pipe 4 is screwed, and a peripheral groove 34 at an upper outer periphery at the other end side. When the suction arm 35 is fitted from the other end side, an O-ring packing 36 built in the inner periphery thereof is fitted into the circumferential groove 34 to maintain airtightness. Therefore, the suction arm 35 can be attached to and detached from the communication tube 32 with one touch. Reference numeral 37 denotes a seal packing provided between the washer 31 and the female screw portion 9 'of the ventilation pipe 4.

[0037]

[Effect of the invention]

 According to the suction cup of this invention, when it is no longer needed, it can be disassembled and each part can be reused.In addition, complicated molding steps such as insert molding are not required, and the cost can be significantly reduced. It provides a suction cup that can be made and has almost no cracks in the elastic material during use, and does not have the drawback that the airtightness, which is an important function of the suction cup, is impaired or the vacuum suction function cannot be performed. I can do it.

[Brief description of the drawings]

FIG. 1 is a bottom view showing an embodiment of the suction cup of the present invention.

FIG. 2 is an exploded perspective view thereof.

FIG. 3 is a sectional view of the same.

FIG. 4 is a sectional view showing an assembled state.

FIG. 5 is a sectional view showing a use state.

FIG. 6 is a sectional view showing another embodiment of the suction cup of the present invention.

FIG. 7 is a sectional view showing still another embodiment of the suction cup of the present invention.

FIG. 8 is a bottom view showing a conventional example of a suction cup.

FIG. 9 is a schematic sectional view thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Suction cup 2 Vent part 3 Skirt part 4 Vent pipe 5 Flange 6 Peripheral groove 7 Vertical groove 8 Clamping fitting 9 Male screw part 10 Suction arm 11 Plate 12 Material Contact part 21 Attachment 22 Base part 23 Female screw part 24 Concave 25 Communication Pipe 26 Connecting ball 27 Lid 28 Small screw 29, 29 'O-ring packing 30 Male screw part 31 Washer 32 Communication pipe 33 Female screw part 34 Peripheral groove 35 Suction arm 36 Ring-shaped packing 37 Seal packing 41 Suction cup 42 Vent part 43 skirt part 44 core metal 45 ridge 46 protrusion

Claims (3)

[Utility model registration claims] 1. An electronic device made of an elastic material such as rubber.
A vent to the air pump, and a skirt extending outward from the vent; a circumferential groove formed on the inner surface of the skirt at a substantially intermediate position between the outer end and the vent. And four or more vertical grooves are formed from the circumferential groove toward the vent hole portion, and the ventilation tube is inserted into the vent hole portion so that the inner wall of the vent portion engages with the flange of the vent tube to form the vent hole. Insert the clamp into the outer wall and the outer periphery of the mouth, clamp the vent with the flange of the vent tube and the clamp, and project the male thread of the vent tube to the outside to make the male thread into the suction arm. A suction cup connected to and attached to a suction arm. 2. A vent portion is in contact with the inner periphery of the outer periphery of the ventilation tube, the inner wall is in contact with the flange of the ventilation tube, and the outer wall and the outer periphery are in contact with the clamping metal and are hardly deformed. The suction cup according to claim 1, wherein: 3. The suction cup according to claim 1, wherein the holding member is formed such that an opening portion through which the ventilation pipe is inserted substantially coincides with an outer periphery of the ventilation pipe.