JPH0580688U - Adsorption device - Google Patents

Abstract

(57) [Summary] (Correction) [Structure] The suction pad 20 made of an elastic member and formed in an annular shape is attached to the lower surface of the substrate 11 attached to the lower end of the load supporting suspension rod 14 by the universal joint 12. The suction pad is provided with a partition wall 22 that is flush with the suction pad and has a suction surface 24. The suction pad is evenly partitioned by the partition walls to form a plurality of suction chambers 23. The vacuum pump and the vacuum pump are electrically connected via the suction port 27. The suction surface of the partition wall seals the gap existing in the lid of the article to seal the air leak portion, and the suction pad is sucked onto the article and lifted. [Effect] Since the gap existing in the lid piece of the article can be sealed by the bottom of the partition wall provided in the suction pad, the suction chamber existing in the suction pad can be reliably depressurized by the vacuum pump.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a suction device for lifting an article by using negative pressure.

[0002]

[Prior Art]

 Conventionally, bags, such as sand, pebbles, cement, feed, grains, etc., are stored in paper bags or vinyl bags, cardboard boxes containing various items inside, and various articles such as plates. As an example of a suction device that sucks and hoists, there is Japanese Utility Model Laid-Open No. 61-65073. The suction pad attached to the lower surface of the suction device for sucking and lifting various kinds of articles 1 by using a negative pressure may be, for example, one having a slightly thick wall made of sponge-like rubber, or the circumference of the suction pad as shown in FIG. For example, there is a rubber lip-shaped collar formed. The suction pad 3 is formed in an annular shape having a circular shape or a substantially rectangular shape in a plan view, has a space portion 4 therein, and the suction pad 3 is attached to the upper surface of a mounting plate 5 having the lower surface attached to the above-mentioned vacuum plate. A hanging rod 7 having a pipe 6 for conducting to a pump (not shown) is attached, and by operating a vacuum pump, a negative pressure is created in the space portion 4 inside the suction pad 3 and the lower surface of the suction pad 3 The article 1 is adsorbed on and lifted.

[0003]

[Problems to be solved by the device]

 Conventionally, the lid pieces 2a, 2a existing on the upper surface of the article 1 are sealed with gum tape or the like, and the suction pad 3 is adsorbed to the upper surfaces of the lid pieces 2a, 2a in an airtight state to form a space portion inside the suction pad 3. The inside of 4 is decompressed with a vacuum pump to be adsorbed. However, as shown in FIG. 4, there is a linear gap 2b between the lid pieces 2a, 2a of the article 1, a step is formed by overlapping the lid pieces 2a, 2a, or various cuts and cuts are made in the lid pieces. If there are gaps such as perforations, staples, nailers, etc., the suction pad 3 may be sucked onto the lid pieces 2a, 2a of the article 1 to operate the vacuum pump. As a result, air is sucked from the linear gap 2b existing between the lid pieces and a predetermined negative pressure is not reached, and the space 4 cannot be sufficiently depressurized, so that the article 1 is lifted by the negative pressure. May not be possible. In order to prevent this, it is necessary to seal the linear gap 2b with a gum tape or the like. However, if they are adhered to each other with a gum tape or the like, it will take too much time and work efficiency will be deteriorated. Was.

According to the present invention, each lid piece of an article is pushed down by a partition provided in the suction pad to seal a linear gap between the lid pieces and a gap portion such as perforations, and the suction pad is further attached to the article. By doing so, it is an object of the present invention to depressurize the suction chamber of the suction pad with a vacuum pump so that the article can be sucked and lifted.

[0005]

[Means for Solving the Problems]

 The present invention is a suction device for lifting an article by using negative pressure, wherein a suction rod having a universal joint is provided on an upper surface of the suction device, and a suction pad attached to a lower surface of the suction device. In order to solve the above-mentioned problems, there is provided a structure in which a partition having a suction surface flush with the suction pad is partitioned into an even number of suction chambers and each suction chamber is connected to a suction port connected to a vacuum pump. Is the means of.

[0006]

[Action]

 Since each suction chamber is provided by partitioning the inside of the annular suction pad into partitions of equal size and even number with partition walls having suction surfaces on the same plane, when the suction pads are pressed against the top surface of the article, the space between the lid pieces is The linear gap and the gap due to the perforations are sealed by the partition wall to seal the air leak part, and the suction pad provided by the vacuum pump is connected to the suction chamber inside the suction pad to reduce the negative pressure. The surface is adsorbed and lifted by the article.

[0007]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. 1 to 3. A universal joint 12 is attached to the center of the upper surface of a base plate 11, and a suspension ring 16 is attached to the upper end of a load supporting rod 14 attached above the joint 12. It is installed. A pad holder 18 for attaching the suction pad 20 is attached to the lower surface of the substrate 11, and the pad holder 18 is formed in a circular planar shape or a substantially square annular shape. It is not limited to a circle. Reference numeral 25 is a pad guide piece arranged on the outer periphery of the substrate 11 and formed in a substantially rectangular or circular shape. The guide piece 25 is attached to the upper surface of the substrate using a connecting piece 26, and the suction pad 20 is positioned. 27 is a suction port formed in a cylindrical body attached to the substrate 11 and is connected to a vacuum pump (not shown), and the other end of the suction port 27 is connected to a plurality of suction chambers 23 provided in the suction pad 20. It is conducting. 28 is a mounting seat for mounting a pressure gauge mounted on the substrate 11.

The suction pad 20 is formed of a flexible and elastic member such as rubber or synthetic resin, and has a substantially rectangular cross section and a circular planar shape or a substantially square circular shape. A partition 22 having a suction surface 24 in the same plane is installed in the circumferential seal material 21 as the circumferential seal material 21. The partition walls 22 form suction chambers 23 that divide the inside of the suction pad 20 into a plurality of, in particular even numbers, and each suction chamber 23 and a vacuum pump are electrically connected via a suction port 27.

The pad holder 18 is formed in a substantially same shape in plan view so as to accommodate the suction pad 20, and both side surfaces of the circumferential seal material 21 are reinforced on both sides of the pad holder 18. Reinforcing walls 17a and 17b are provided to form a U-shaped cross section. A partition wall 22 that evenly divides the circumferential seal material 21 into even numbers is also mounted in the suction pad 20 by using the holding piece 19 having the reinforcing wall pieces 19a and 19a on both sides. Therefore, the shape does not collapse even if a lateral force is applied to the circumferential seal material 20 and the partition wall 22 which form the suction pad 20, and the suction chamber 23 is securely sucked to a negative pressure by a vacuum pump. Can be made

The partition wall 22 is not necessarily linear, and for example, when the lid pieces 2a, 2a of the cardboard box are divided into four pieces, they may be formed in a cross shape and adhered to each other. The four gaps may be sealed individually. In addition, when each lid piece is formed in a curved shape, it is of course possible to form it in a curved shape in accordance with the curved line. That is, the partition wall 22 has a function of sealing the gap provided in each lid piece, and may be formed in a necessary shape for sealing. Further, in order to make the direction of the partition wall 22 easily coincide with the space, if a mark indicating the direction of the partition wall 22 is provided on the outer surface of the suction pad 20 or on the substrate 11, the suction work can be performed more efficiently. It can be carried out. Also, when connecting the board to the lower end of the suspension rod, it is not always necessary to connect using a universal joint, and other joints may be used, as long as the board is mounted so that it can move freely. Good.

Next, the operation of the present embodiment will be described. An operator holds the substrate 11 and the like to attach the suction pad 20 to the pad holder 17 and attaches the suction device 10 to the substrate 11. When the suction device is moved upward and the suction device is lowered, the lid pieces 2a, 2a are pushed down to press the upper surface of the article 1 while sealing the linear gap 2b existing between them with the partition wall 22. In this case, if the partition wall 22 is positioned so as to seal the linear gap 2b existing between the lid pieces 2a, 2a, the suction pad 20 will be in close contact with the article 1 and a vacuum pump (not shown). ), The suction chamber 23 can be depressurized and adsorbed, and the article 1 can be lifted.

The plurality of suction chambers 23, 23 formed substantially evenly by the partition wall 22 in the suction pad 20 may be communicated with a vacuum pump by communicating with each other through a communication passage 24 provided above the holding part piece 19. Alternatively, the suction chambers 23 and the suction ports may be electrically connected to each other to form the suction chambers 23 independently.

[0013]

[Effect of the device]

 Since the suction pad of the present invention is composed of a circumferential seal material and a partition wall, and the partition wall and the suction surface of the suction pad are formed on the same plane, a linear shape existing between both lid pieces is formed. When the suction pad is pressed against a gap or a gap such as a perforation, the partition seals the gap to prevent air leakage, and the circumferential seal material is adhered to the upper surface of the article so that the internal seal By depressurizing the suction chamber, the article can be reliably lifted. Moreover, since the suction chambers are divided into multiple, especially even-numbered spaces, and are connected to the suspension rod by universal joints, the suction pad can be easily positioned and the suction surface can be obtained in a narrow range. it can. Furthermore, if the suction chambers inside the suction pad are independently connected to the vacuum pump, some suction chambers inside the suction pad can be used even if the lid piece on the top surface of the article has a step. It is also possible to adsorb and lift the article.

[Brief description of drawings]

FIG. 1 is a partial sectional view of an adsorption device according to the present invention, partially broken away.

FIG. 2 is a bottom view of a suction pad.

FIG. 3 is a partially cutaway front view of the adsorption device.

FIG. 4 is a front view of a conventional suction device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Article 10 Adsorption device 12 Universal joint 14 Suspension rod 20 Adsorption pad 21 Circumferential seal material 22 Partition wall 23 Suction chamber 27 Suction port

Claims (1)

[Scope of utility model registration request] 1. A suction device for hoisting an article by using a negative pressure, wherein a suspension rod having a universal joint is provided on an upper surface of the suction device, and a suction pad is attached to a lower surface of the suction device. The suction device is divided into even-numbered suction chambers by a partition having a suction surface flush with the suction pad, and each suction chamber is connected to a suction port connected to a vacuum pump.