JPH0621879U - Adsorption pad - Google Patents

Abstract

(57) [Summary] [Purpose] The objective is to make it possible to manufacture adsorption pads at low cost, to increase the adsorption area, and to enhance the adsorption performance for products. In an adsorption pad used in contact with the object to be sucked and conveyed at a negative pressure, the suction pad is connected to an air pipe connected to a pressure reducing device for generating the negative pressure. The frame portion 2 and the rubber portion 5 that comes into contact with the object to be attracted are separately formed, and the rubber portion 5 is detachably attached to the tip of the frame portion 2 so that the frame portion 2 can be attached. Is made of a hard material and the rubber part 5 is made of a soft material so that a suction pad having a large suction area can be formed without causing a leak, and the suction force decreases with the lapse of use. In this case, only the rubber part 5 can be replaced.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a suction pad, and is particularly suitable for use as a suction structure for a blower motor.

[0002]

[Prior art]

 As is well known, as one of the means for conveying an article, it is widely practiced to adsorb the article by a negative pressure using a pressure reducing device and convey the article. The decompression device is configured, for example, by connecting an air pipe to a vacuum pump and connecting an adsorption pad to the air pipe.

The suction pad 10 is used to eliminate a leak state on the suction surface, and is therefore made of a flexible member such as rubber. Further, generally, as shown in FIG. 5, it is composed of a frame portion 11 and a rubber portion 12, and is formed into a round shape as a whole, and the adsorption area is small. Then, the number of the adsorption pads 10 to be attached is adjusted according to the weight of the adsorption target, and the size of the adsorption surface is increased according to the weight of the adsorption target.

As described above, the suction area of each suction pad 10 is reduced, and a plurality of suction pads 10 are attached as necessary, so that the possibility of leaking is reduced by reducing the suction area. This is because

[0005]

[Problems to be solved by the device]

 The adsorption pad of this type is deformed or deteriorated in quality over the course of use, and the adsorption state becomes insufficient. If this happens, it is necessary to replace the adsorption pad in order to improve the adsorption state.

However, in the conventional suction pad 10, the frame portion 11 and the rubber portion 12 are integrally formed, so that when the suction state becomes insufficient, the entire suction pad must be replaced. . For this reason, there is a disadvantage in that it costs a lot of money to replace the adsorption pad.

In addition, as described above, there is a limit to increase the adsorption area per piece, and since the adsorption target is heavy, the adsorption area is widened to increase the adsorption force. There was also a problem that I had to install. The present invention has been made in view of the above problems, and an object thereof is to make it possible to inexpensively manufacture an adsorption pad having a large adsorption area.

[0008]

[Means for Solving the Problems]

 The adsorption pad of the present invention is an adsorption pad used in contact with the object to be adsorbed at a negative pressure so as to convey the object under negative pressure, and an air pipe connected to a decompression device for generating the negative pressure. And a rubber part 5 that contacts the attracted object are separately formed, and the rubber part 5 is detachably attached to the tip of the frame part 2. It is a suction pad. Further, in the present invention, the collar-shaped piece 6 is formed on the end surface of the frame portion 2, and the holding groove 5a is formed on the end surface of the rubber portion 5, and the collar-shaped piece 6 is held by the holding groove 5a. The rubber portion 5 is detachably attached to the frame portion 2 by being fitted and sandwiched inside. Further, in the present invention, the suction holding portion 5b is formed by thickening the root side where the holding groove 5a is formed, and the opposite end side is thinned to form the leak prevention portion 5c. Further, in the suction pad of the present invention, the holding groove 5a, the suction holding portion 5b, and the leak prevention portion 5c are integrally formed by molding.

[0009]

[Action]

 In the suction pad of the present invention, the frame portion 2 and the rubber portion 5 are separately formed. Therefore, when the rubber portion 5 deteriorates and the suction force decreases with the use, the rubber portion 5 is not Remove from frame 2 and replace with a new one. That is, since the frame part 2 can be continuously used, the cost required for parts replacement can be significantly reduced. Further, the frame portion 2 can be formed of a hard member and the rubber portion 5 can be formed of a sufficiently flexible member, so that a suction pad having a large suction area can be realized.

[0010]

【Example】

 Next, an embodiment of the suction pad of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows a plan view of a frame portion 2 of a suction pad of this embodiment, and FIG. 2 shows a front view of a frame portion 2 including a fractured portion. As is clear from FIG. 1, the frame portion 2 of the present embodiment is formed in an elongated rectangular shape in plan view, and is made of a member such as steel or synthetic resin.

As shown in FIGS. 1 and 2, the frame portion 2 is formed in a flat container shape with one surface opened, and the adsorption rubber sandwiching portion 4 is formed along the edge of the opening surface. It Further, a pad mounting portion 2a is provided in the central portion, and hook holes 2b are provided on both sides thereof. The adsorbing rubber sandwiching portion 4 is provided to attach the rubber portion 5 (see FIG. 3), which directly abuts the object to be adsorbed, to the frame portion 2. An example in which the adsorption rubber sandwiching portion 4 is configured by the piece 6 and the rubber rubber pressing piece 3 is shown.

As shown in FIGS. 3 and 4, the collar-shaped piece 6 is formed along the edge of the opening surface, and is to be fitted into the holding groove 5 a formed in the rubber portion 5. It is provided in. Further, the rubber pressing piece 3 is mounted on the side surface of the main body portion of the frame portion 2 and is provided to press and hold the rubber portion 5 fitted to the frame portion 2 by fitting with the holding groove 5a. Has been.

As shown in FIG. 4, the rubber portion 5 is functionally composed of a suction holding portion 5b and a leak prevention portion 5c, and is integrally formed of rubber. The suction holding portion 5b is a portion for adsorbing the adsorption target, and this portion is formed relatively thick so that the adsorption target can be firmly adsorbed and held.

Further, the leak prevention portion 5c is formed thin so that it fits well on the surface of the object. As a result, even if the surface of the object has irregularities, the leak prevention portion 5c and the surface of the object are in close contact with each other, and no leak occurs during this time.

Since the frame portion 2 and the rubber portion 5 are separately formed in the suction pad 1 of this embodiment, a large pad can be manufactured at low cost. In addition, it is possible to freely manufacture a square type or a round type, and it is possible to easily make a suction pad having a shape that matches the shape of the suction target.

When producing a large pad, for example, it is possible to make a large adhesive part by bonding standard molded rubbers together with an adhesive and sandwich this with the collar-shaped piece 6 to make an adsorption pad. Now it can be manufactured easily and at low cost.

Further, the suction pad 1 of this embodiment is optimal when it has a suction structure for a blower motor. That is, the suction pad 1 of this embodiment has a suction area of, for example, 15,000 mm 2 (a radius of 70 mm or more in the case of a circular pad) and 300 mm 2 or more in the pad mounting portion 8 (a radius of 10 mm in the case of a circular structure). By the above, it is possible to perform blower adsorption, which is different from vacuum adsorption.

Therefore, if the suction pad 1 of the present invention is used, even if some leakage occurs, it can be sucked without any problem as long as it can be sucked by the blower motor. Also, since only the part that comes into contact with the object to be adsorbed is made of rubber, it is possible to easily replace only the rubber part if the adsorbing force decreases due to wear of the rubber or the like. Therefore, if the suction pad 1 of the present invention is used, it is possible to greatly reduce the cost required for parts replacement.

[0019]

[Effect of device]

 As described above, according to the present invention, since the frame portion and the rubber portion are separately formed, and the frame portion and the rubber portion are detachably attached to form the suction pad, the frame portion is made of a hard member. In addition to the above, the rubber part can be formed of a sufficiently flexible member, and the suction pad having a large suction area can be easily configured. Also, if the suction force decreases with use, the frame part can be used continuously by removing the rubber part from the frame part and replacing it with a new one. Can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view of a frame unit according to an embodiment.

FIG. 2 is a front view of a frame portion according to an embodiment.

FIG. 3 is a front view of a suction pad according to an embodiment.

FIG. 4 is a sectional view of a main part of a suction pad according to an embodiment.

FIG. 5 is a front view showing an example of a conventional suction pad including a partially broken portion.

[Explanation of symbols]

 1 Adsorption pad 2 Frame part 3 Rubber pressing piece 4 Adsorption rubber pinching part 5 Rubber part 6 Collar piece 8 Pat mounting part

Claims (4)

[Scope of utility model registration request] 1. An adsorption pad used in contact with an object to be adsorbed at a negative pressure so as to convey the object to be adsorbed, which is connected to an air pipe connected to a decompression device for generating the negative pressure. The frame portion 2 and the rubber portion 5 that comes into contact with the object to be attracted are separately formed, and the rubber portion 5 is detachably attached to the tip of the frame portion 2. Adsorption pad. 2. A flange-shaped piece 6 is formed on an end surface of the frame portion 2 and a holding groove 5a is formed on an end surface of the rubber portion 5, and the flange-shaped piece 6 is fitted in the holding groove 5a. The suction pad according to claim 1, wherein the rubber portion 5 is detachably attached to the frame portion 2 by sandwiching the rubber portion 5. 3. The suction holding portion 5b is formed by thickening the root side where the holding groove 5a is formed, and
The tip end side on the opposite side is thinned to prevent the leak prevention portion 5c.
The suction pad according to claim 1, wherein the suction pad is formed. 4. The suction pad according to claim 1, wherein the holding groove 5a, the suction holding portion 5b, and the leak prevention portion 5c are integrally formed by molding.