TW528672B - Press having dust generation preventing mechanism - Google Patents

Abstract

Disclosed is an electric press with a substantially airtight casing containing therein a drive device for reciprocatingly moving a ram relative to a work positioned on a base to press the work, and a device for exhausting the dusts produced within the casing from a room where the electric press is located to the outside into open air through a pipe connected to the casing, the electric press comprising dust exhausting means including at least two openings provided at the casing thereof, one of the openings being of a relatively small diameter to be used in connection with an exhauster of a normal level of exhausting ability and the other of the openings being of a relatively large diameter to be used in connection with an exhauster of a relatively low level of exhausting ability. Further the casing is divided into an upper portion and a lower portion, and the upper portion is detachably mounted to above-mentioned lower portion. The dust exhausting means includes a sealing sheet of a property preventing dusts from passing therethrough, the sealing sheet has one end secured to the inside of the upper portion of above-mentioned casing such that the free end of the sealing sheet extends down into the lower portion of that casing all therearound to close a clearance between the upper portion and the lower portion, above-mentioned sheet being yielding to the exhausting force of above-mentioned exhauster to allow outer air to flow into above-mentioned casing through the clearance when the exhauster is operated.

Description

528672 I. Description of the invention (i)! BACKGROUND OF THE INVENTION -2- FIELD OF THE INVENTION: The present invention relates to a press, and more particularly to a press that has a mechanism to prevent the press from operating during the operation of the press. Device that generates dust in the space. The press has a simple structure and is suitable for use in a clean room factory and / or a product research room where the space needs to be cleaned. Prior art: It has not been proposed so far that a press may have a device that prevents the press from generating dust in its space during the operation of the press. It is known that some industrial robots already have a dust prevention device. However, such a dust-prevention device is often unable to meet customer needs. | A clean press is currently needed that does not create dust in a space where the press is used. Such a press requires an optimal exhaust power capable of producing an exhaust flow that matches the amount of dust generated in the press. When the press has a larger diameter exhaust port, an exhauster with a higher exhaust capacity or a lower exhaust capacity can be used to discharge a required amount of dust. However, if the exhaust port has a large diameter, the hose and I pipe connecting the exhaust port must also have a large diameter. As this will severely restrict the design and arrangement of the press body, piping, and wiring, it is necessary to reduce the exhaust port. On the other hand, if the exhaust port is small, an exhauster with a lower exhaust capacity cannot meet the dust demand. Therefore, it is necessary to provide another large exhaust port which can be used interchangeably with a small exhaust port. Since the press is used in a clean room, the dust generated in the press is used.

2099-3259-PF.ptd Page 5 528672 V. Description of the invention (2) It is discharged into the open air outdoors, so the press does not need to be completely discouraged.豕 And a tiny or gap or gap of the 'press will allow a small = to be discharged through the gap when the exhauster is inactive. … Machine f requires a high level of cleanliness, even if the press releases only a small amount of dust and cannot be accepted. Therefore, it is a type of press that does not release dust even when the exhauster is in an inactive state. OBJECTS OF THE INVENTION It is one of the objects of the present invention to provide a press having an ash prevention device and suitable for use in a clean room. Another object of the present invention is to provide a compact and effective press. . Another object of the present invention is to provide a press which can alternately use an exhauster with a higher exhausting capacity and an exhauster with a lower exhausting capacity according to the operation mode of the press. Yet another object of the present invention is to provide a press which does not release dust as long as the exhauster is in a non-actuated state as long as it is operated. SUMMARY OF THE INVENTION To achieve these objectives, the press system includes a substantially air-tight enclosure, which includes a drive device that reciprocates the ram relative to a workpiece on a base to punch the workpiece, and a mechanism that The dust is discharged from the space where the press is located into the outdoor open atmosphere through a pipeline connected to the casing. The dust discharge device includes at least two openings provided in the casing and one of the openings has a smaller size.

〇99-3259-PF-ptd Page 6 528672 V. Description of the invention (3) An exhauster with a diameter to connect a standard exhaust capacity and another opening with a larger diameter to connect to a lower exhaust capacity Air device. Furthermore, the casing is divided into an upper portion and a lower portion, and the upper portion is detachably mounted to the lower portion. The dust discharge device includes a sealing sheet having a characteristic of preventing dust from passing therethrough. The sealing sheet has an end fixed to the inside of the upper part of the casing so that the free end of the sealing sheet extends downward into the periphery of the lower part of the casing. To close a gap between the upper portion and the lower portion, the thin plate yields to the exhaust force of the exhauster to allow outside air to flow into the casing through the gap when the exhauster is activated. Brief Description of the Drawings Figure 1 is a perspective view of a press viewed from one direction; Figure 2 is a perspective view of a press viewed from another direction; Figure 3 is a vertical sectional side view of a press; 1 Figure 4 Fig. 5 is a side view of the press along the line BB in Fig. 3; Fig. 5 is a side view of a vertical section of a part of the press; and Fig. 6 is a side view of a vertical section of another part of the press . DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described with reference to the accompanying drawings. The press of the present invention in Figs. 1 and 2 generally includes an airtight casing A and a working bed 3 supporting a workpiece to be punched. The airtight casing A includes a head 1 attached to the main components including the press, and a pillar portion 2 extending from the head 1 and the working bed 3

2099-3259-PF.pid Page 7 528672 V. Description of the invention (4). Douyin P 1 person p Y head 丨 丨 I head »It is counted as having sufficient rigidity. Head = ΐ 桎 :: 2, 2, 2 supporting parts 2 and the joint between the base 3 and the work base 3 are sealed, and the pillar part 2 and the controller 4 are provided in the work. / R Machine 豉 A includes The main components include a drive stamping section 7 and a control section 8. The drive sigma transmission section 6, a section 6 includes a pulley and-a ring / booklet-servo motor. The transmission transmits mechanical power from the driving part 5 to the punching part 7. The punching part 7 includes a hammer 7 a and a driving a 7 h. The sun strikes the bell 7 and is located on the working bed 3: 2: System: The compound 7b is usually cylindrical and includes an 'H / pattern member with balls in it. It is movably connected to the hammer 7a and rotates the two dust screws to make the hammer 7a move vertically as shown in Figure 3. The flexible dust cover 14 in the complex movement-covering stamping section 7 has a tightly connected upper end connected to the lower end of the machine A and a sealed connection to the ram. The lower end of the cover allows the dust cover 14 to flex vertically when the hammer 7a moves vertically to prevent dust from being discharged from the casing a when the hammer 7a moves vertically. An opening 11a, ib is provided at one side of the pillar 2 so that an exhaust pipe can reach one of the openings. The exhaust pipe 13 as shown in part in Figure 3 has an end connected to any of the openings | 11 a, 11 b and an opposite end connected to a blower 1 6 located on the clean outdoor side where the press is located. . Blower 丨 6 series of pressure maneuver ^

2099-3259-? F-ptd Page 8 528672 V. Description of the invention (5) Absorb dust from the case A and release the dust to the open air through the exhaust pipe 1 3. Since the case A is airtight as described above, dust cannot be discharged. A flow meter 17 may be provided outside the exhaust pipe 13. With regard to the openings 11 a, 1 1 b provided on the side of the pillar 2, the opening 1 1 a-is generally used for discharging dust from the casing A and is designed to have a standard in use such as 9 Ο NI The exhausting capacity of the blower is sufficient to obtain a smaller diameter, such as 8 mm (inner diameter), for a required exhaust volume, such as 100 NI / min. This is because the outer surface of the pillar 2 may have electrical wiring portions and connecting wires. The opening 11 b is designed as an exhauster with a larger diameter to match a lower exhaust capacity. For example, a diameter of 25 mm (inner diameter) is sufficient to achieve a required exhaust volume of 1 000 n I / min when using a low exhaust capacity blower such as 5 0 0 N I / min. ^ " In order to discharge dust from the case A, it is necessary to use one of the openings Ua, llb-and close the other opening according to the exhaust capacity of the exhauster. As shown in Fig. 2, the plates rotated by V 'between the two positions alternately close the openings 11a, 11b. More specifically, especially, a tomb pq rt holding plate 20 is fixed to the inner side wall of the pillar 2 and the pieces of the openings Ua and Ub protrude from the pillar 2 to connect the opposite members Ua and 11b respectively. Inside ... close plate 15 4 = tube-close plate 15 is the side wall of the holding plate 20 and the pillar 2 and partially protrudes φ, and the two extension shafts 15a are threaded through the branch to unite the close plate. Nuts 18 on the protruding ends 2 of the shaft 15a. The bottom end of the closing plate 15 is sounded, and it is closed when it is fixedly supported by the pillar. The plywood 15 is located at one of two positions. ^ ;,-the rubber plate 15b can be closed by closing one of the openings 11a, 11b.

528672 V. Description of Invention (6) The closing plate 15 further has a horizontally extending pin 1 5 C to selectively engage one of a plurality of recessed portions provided on the supporting plate 20 to cooperate with the nut 8 to fixedly support the closing plate 15 on the support 2. Furthermore, a dial 19 is mounted on the protruding surface of the shaft 15a of the closing plate 15. &

In order to selectively use one of the openings 1 1 a, 1 1 b, it is necessary to first deflate the nut 18 to move the closing plate 15 axially. Next, the dial 19 is pushed down to move the closing plate 15 axially to disengage the positioning pin 15c from one of the recesses of the supporting plate 20, and at the same time, separate the rubber plate 15b from the openings 11a, 11b. Then by referring to an arrow 19a marked on the dial 19 and two spacer marks s 2a and 2b provided on the pillar 2 for indicating the two recesses 1 and selected by the front 19a, the closing plate 15 is rotated to position the pin 15c drives to other recesses. When the arrow 19a is aligned with a certain mark 2a, & the nut 18 is tightly fixed to the closing plate 15 so that the opening i a or lib can be selected. In another mode, an unused opening 11a, 11b can be closed by a cap. In still other ways, the closing plate 15 is replaced with a plate that can slide relative to the openings 11a, 11b to selectively close unused openings. When the case A includes components other than the head portion 1 and the pillar portion 2, all joints will be tightly sealed to make the case airtight. Figure 4 and Figure 5 show the details of the casing A, which includes an upper part 1 a and a lower part 1 b as a cover to facilitate assembly and maintenance of the press. 4 and 5 are cross-sectional views taken along line B-B. FIG. 4 shows only one of the plurality of frames 31, and the frame 31 has a U-shape with flat portions facing upward and downward. The lower flat portion is fixed to the lower portion 1 b of the cabinet A and thus stands upright. Upper flat part 3 1 a series

528672 V. Description of the invention (7) It has a threaded hole (or a plurality of threaded holes). The upper part 1a of the case A serving as a cover is fixed to the unit BM by a screw 32 which penetrates the top of the cover 1 & and is screwed into the threaded hole of the frame 31. Depending on the assembly method, a small gap of 1C between the "lower end and the lower part" of the cover cannot be avoided. Even if the upper end of the lower portion 1b of the lower portion of the lid 1a still has another type of gap between the lid 1a and the lower portion M1b. Poor seal t = K-an L-shaped section support plate 33 fixed to its inner side. -The auxiliary plate 34 is fixed to the supporting plate 33, and the auxiliary plate is extended to the stationary connecting plate 33. The sealing sheet 36 extends downward from the sheet 36. The inner part of the square part 1b is closed to close the gap 1c (Fig. 4). The seal is thin. A soft rubber or a soft resin that allows dust to pass under the casing A. The edge 37 makes the seal 4 °. The seal part 1c has a seal gap 1c pointing to the inside. The plate 36 contacts the edge 37 in the normal state and cooperates with the edge M compactor where the plate 36 is located. The plate 36 normally prevents dust from entering the casing A and will be inside the casing A ... / ^ indoor. When the blower 16 is operated when the press is operated, a mechanical component that allows the sealing sheet 36 to move toward the inside of the casing A with a negative pressure is allowed to flow into the machine shot through the gap 1C. Therefore, the load of the blower 16 in the case of the case 6.7 in the case 8 can be reduced. -Fixing 1 A drawing machine V / type frame 31 can be replaced by a -rigid shaft 38, which has a screw case / lower end mounted on it and a wind la la fixed to the upper end.

Claims (1)

528672 6. Scope of patent application 1. A press with a hammer device to a casing device, which has a relatively large opening 2 and is separated by an equal opening 3 · until the dust passes through the casing with respect to a The base bed and a pipeline have a small diameter and have a larger diameter. For example, when a casing is discharged into a room and installed on the machine to connect the diameter, a workpiece with a substantially airtight casing opened and reciprocated by a patent. The dust generated is opened from the outside of the press. At least two openings on the pressure shell are connected to a row with a standard exhaust capacity connected to a press with a lower exhaust capacity around item 1. The shell is discharged from the mouth. Inside the ash, the interior includes a drive of a stamped workpiece in the space via a connecting machine including dust discharge one of the open air vents and the other of the exhaust air vents. It also includes closing the upper part and the other part of the first patent application when switching the dust loading, where the special part enters the next gap of the case, and the thin part is allowed to be the outer and neutral dense side. The peripheral plate is the press according to item 1 of the flexure air enclosure, wherein the casing is a lower part, and the upper part is detachably installed. The dust discharge device includes a sheet having an anti-ash seal sheet. A fixing to the end causes the free end of the sealing sheet to extend downward into the enclosure to close the discharge force of the exhauster between the upper portion and the lower portion so that the exhauster flows into the casing through the gap. Inside. 2099-3259-PF.ptd Page 12