201103743 六、發明說明： 【發明所屬之技術領域】 本發明係與沖床所使用的緩衝裝置有關，特別是一高 低壓式緩衝系統。 【先前技術】 一般沖床的下端都會設置一緩衝缸，其功能是用以承 φ 受緩衝上端沖壓缸在下壓時的力道，可是該緩衝缸一直以 來都存在著一個移動速度與壓力之間不能兼具的問題。通 常高壓時的移動速度慢而移動速度要快壓力就要低，這個 問題長久以來困擾著緩衝缸的設計，要如何做到二者兼具 疋一個有待解決的問題。其次的問題是由於該緩衝缸會一 直的配合著沖床的動作而不斷的在增壓、減壓或者是充 氣、排氣的循環作動，所以也就必須要有一外部的壓力源 提供壓力’換言之也就會—直稍的在消耗能源， 響這對於產業而也是一個問題。 【發明内容】 本發明主要目的在提供一高低壓式緩衝系統，以使緩 衝紅在受到沖壓時可以有快速的移動並錢在回位時提供 阿壓的回復效能。 八 為達到此目的’本發明所提供的—種高低壓式緩衝 =係與-般沖壓機的緩攸連接，本發明之高低壓式緩 '、統包含有：-調壓閥’―端連接__前輸油管另一端連 3 201103743 接後輪油官’ 5玄5周壓闕以該前輸油管與沖床的緩衝缸連 通，該調㈣可罐設定_㈣壓力值。—健氣壓缸， =一第-油壓管路___後輸騎連接，該低壓氣 壓缸具有—缸體’雜體时存魏體並設有-活塞，該 側°又有氣孔，用於將氣體輪入該低壓氣壓缸 内，該氣孔於-般狀態下是封_。—油路開關，設於該 減氣壓缸與該調朗之間的第—油㈣路上，用於控制 該油壓管路的關。-高壓氣壓H第二油壓管路與 該調壓_錢油管連接，該高壓氣g具有—缸體，該 缸體内&又有一活塞，該商壓氣壓缸以一管路連接一氣體供 應裝置’-般為-空壓機。該高壓氣壓虹與該氣體供應裝 置之間的管路上設有一進/排氣控制開關。一回油管路， 連通該前輸油管與該後輸油管，該回油管路上設有一逆止 閥，使油液可以由該後輸油管端流向前輸油管端而反向止 【實施方式】 茲舉一實施例配合圖式說明如下： 首先如第一至四圖所示，本發明高低壓式緩衝系統係 用於與一般沖床機台的緩衝缸1連接，本發明之高低壓式 緩衝系統包含有： 一調壓閥10，一端連接一前輸油管π另一端連接一 後輸油管12，該調壓閥10以該前輸油管11與沖床的緩衝 缸1連通’該調壓閥10可調整設定控制緩衝缸1的壓力值。 201103743 -低壓氣麗紅20，以-第-油壓管路21與該調壓閥 10的後輸油管12連接，該低壓氣壓缸2〇具有—紅體， 該缸體22内蓄存有氣體並設有一活塞23，該缸體之〆 侧設有一氣孔24 ’用於將氣體輸入該低壓氣壓虹内， 該氣孔24於一般狀態下是封閉的。 一油路開關30,設於該低壓氣壓缸20與該調壓閥1〇 之間的第一油壓管路21上，用於控制該第一油壓管路21 的啟閉。 -高壓氣壓缸40 ’以-第二油壓管路41與該調壓闕 10的後輸油管12連接’該高壓氣壓缸40具有—虹體42， 該缸體内設有一活塞43 ’該高壓氣壓缸以一管路連接 外部的氣體供應裝置（圖中未示）’ 一般為—空壓機。該高 壓氣壓缸40與該空壓機間的管路44上設有一進/排氣^ 制開關45。而為了使該高壓氣壓缸40在移動時可以更為 平穩’該高壓氣壓缸40内的活塞可不同於一般活塞僅嗖〆 凸部，而是設置有複數個凸部46，在本實施例中為二凸 部’以多個凸部46同時受力移動活塞可以讓活塞在移^時 更為的平穩順暢。 該第一油壓管路21與該第二油壓管路41可分別與讀 後輸油官12連接或是藉由連接一三通管而連通該後輪 管 12。 一回油管路50’連通该前輸油管η與該後輸油管u， 該回油管路50上設有一逆止間51，使油液可以由該後輪 油官^12端流向前輸油管11端而反向止逆。 201103743 第Γ圖至第四圖所示，以本發明之結構在實務 上1°狀1、祕氣壓紅40以及低壓氣壓紅20 之最初始狀齡如第一圖所示，各缸體的活塞都會位在上201103743 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a buffer device used in a press, and more particularly to a high and low pressure buffer system. [Prior Art] A buffer cylinder is provided at the lower end of the general punching machine. Its function is to force the φ by the upper end of the buffer cylinder when the pressure is pressed. However, the buffer cylinder always has a moving speed and pressure. Have problems. Usually, the moving speed is high when the high pressure is high, and the moving speed is fast and the pressure is low. This problem has long plagued the design of the buffer cylinder, and how to do both has a problem to be solved. The second problem is that because the buffer cylinder will always cooperate with the action of the punching machine and continuously pressurize, decompress or inflate and exhaust, so there must be an external pressure source to provide pressure. In other words, It will be – directly consuming energy, and this is also a problem for the industry. SUMMARY OF THE INVENTION The main object of the present invention is to provide a high and low pressure type buffering system, so that the buffer red can be moved quickly when being punched and the pressure of returning pressure can be provided when returning. In order to achieve this goal, the present invention provides a high-low pressure buffering system and a slow-twisting connection with a general-purpose punching machine. The high-low-pressure type of the present invention includes: - a pressure regulating valve' __ The other end of the oil pipeline is connected to the 3 201103743. The rear wheel oil officer '5 Xuan 5 weeks pressure is connected with the front oil pipeline and the buffer tank of the punching machine. The adjustment (4) tank can set the _ (four) pressure value. - a healthy pneumatic cylinder, = a first - hydraulic line ___ after the ride connection, the low pressure cylinder has a - cylinder body when the body is stored and has a - piston, the side has a hole, with The gas is introduced into the low pressure pneumatic cylinder, and the air hole is sealed in the normal state. - an oil circuit switch, disposed on the first oil (four) road between the pressure reducing cylinder and the adjusting cylinder, for controlling the closing of the oil pressure pipeline. - a high pressure air pressure H is connected to the pressure regulating oil pipe, the high pressure gas g has a cylinder, and the cylinder has a piston, and the commercial pressure cylinder is connected to a gas by a pipeline Supply device '----air compressor. An inlet/exhaust control switch is provided on the line between the high pressure air pressure rainbow and the gas supply device. a return oil line connecting the front oil pipe and the rear oil pipe, wherein the oil return pipe is provided with a check valve, so that the oil can be reversely flowed from the rear oil pipe end to the front oil pipe end and is reversed [embodiment] The description is as follows: First, as shown in the first to fourth figures, the high and low pressure buffer system of the present invention is used for connection with the buffer cylinder 1 of a general punching machine. The high and low pressure buffering system of the present invention comprises: The pressure valve 10 has one end connected to a front oil pipe π and the other end connected to a rear oil delivery pipe 12, the pressure regulating valve 10 is connected with the front oil supply pipe 11 and the buffer cylinder 1 of the punching machine. The pressure regulating valve 10 can adjust and set the pressure of the control buffer cylinder 1. value. 201103743 - Low pressure gas red 20 is connected to the rear oil supply pipe 12 of the pressure regulating valve 10, and the low pressure pneumatic cylinder 2 has a red body, and the gas is stored in the cylinder 22 A piston 23 is provided, and an air hole 24' is provided on the side of the cylinder for inputting gas into the low pressure airflow, and the air hole 24 is closed in a normal state. An oil circuit switch 30 is disposed on the first hydraulic circuit 21 between the low pressure cylinder 20 and the pressure regulating valve 1 for controlling the opening and closing of the first hydraulic circuit 21. - a high pressure pneumatic cylinder 40' is connected to the rear oil delivery pipe 12 of the pressure regulation crucible 41 by a second hydraulic pressure line 41. The high pressure pneumatic cylinder 40 has a rainbow body 42 having a piston 43'. The cylinder is connected to an external gas supply device (not shown) by a pipe to be generally an air compressor. An intake/exhaust switch 45 is provided in the line 44 between the high pressure cylinder 40 and the air compressor. In order to make the high pressure pneumatic cylinder 40 move more smoothly, the piston in the high pressure pneumatic cylinder 40 can be different from the general piston only to the convex portion, but a plurality of convex portions 46 are provided, in this embodiment. By moving the piston at the same time by the plurality of convex portions 46 for the two convex portions, the piston can be made smoother and smoother when moving. The first hydraulic line 21 and the second hydraulic line 41 may be connected to the post-transport operator 12 or may be connected to the rear wheel 12 by connecting a tee. A return oil line 50' communicates with the front oil feed pipe η and the rear oil feed pipe u. The oil return line 50 is provided with a check chamber 51, so that oil can be flowed from the rear wheel oil commander 12 end to the front oil feed pipe 11 end. To the end. 201103743 As shown in the fourth to fourth figures, in the structure of the present invention, the initial state of 1° shape 1, secret pressure red 40, and low pressure pressure red 20 is as shown in the first figure, and the piston of each cylinder is shown in the first figure. Will be on
ί點=。而當沖床的輪開始下移綱緩· I :開會是在開啟導通的狀態而該儀控 汗A、疋在排乳位置。在該緩衝紅1被擠壓時缸體内 該前輸油管11向外流出，通過該_〇 9^後0輸=12雜轉㈣缸40从職壓氣麻 2>0 ★此時由於該低壓氣麗虹2〇内仍存在有氣壓而該 南Μ耽壓此4G則因進/排氣控制開關45的開啟而相對為 一低壓狀態，所以油液會先朝該高壓氣壓紅4G的方向流’ 並f將該高壓氣壓缸4G内的活塞43向下推，藉此可以使 祕衝缸1可以很快速的移動，如第二圖所示。迫該高壓 氣壓缸4G㈣存—定量油㈣產生—定麵力時，該油液 會同時流向該高壓氣壓缸4〇以及該低壓氣壓缸2〇，並且 推動該二氣壓虹内的活塞向下移動，此時該緩衝缸1的移 動會較緩慢，如第三圖所示。 在冲壓缸上升該緩衝缸1達到下止點後要開始往回升 B寺由於起始時需要較大的力量紐升該緩衝缸1的活塞， 所以在—開始時該油路開關3G會先關閉，該進/排氣控制 開關〆Μ丨切換為進氣位置，然後由外部的氣體提供裂置開 始將氣體打入該高壓氣壓缸4G内，使該高壓氣壓缸40的 活塞43^_，以迫使該高壓氣麻40 _油液經由該 後輸油g 12、回油管路5G及該前輸油管u被擠回該緩衝 201103743 缸1内，而在該高壓氣壓缸40啟動後一預定的時間，例如 0.5秒或是1秒後該油路開關30再開啟，讓原本存蓄在該 低壓氣壓缸20内的油液因著該低壓氣壓缸2〇内氣體壓力 的回推而被擠出該低壓氣壓缸20, 一樣的循著該後輸油管 12、回油管路50及該前輸油管u被擠回該緩衝缸工内， 以二個氣壓缸同時加壓可以使該緩衝幻快速的 一_示的上止點的位置以接續下—個沖壓的動作。ί点=. And when the wheel of the punching machine starts to move down, I: The meeting is in the state of being turned on and the instrument is controlled to sweat A, and the position is in the milking position. When the buffer red 1 is squeezed, the front oil delivery pipe 11 flows out in the cylinder body, and passes through the _〇9^ after 0 transmission=12 miscellaneous rotation (four) cylinder 40 from the service pressure gas and numbness 2> 0 ★ at this time due to the low pressure gas There is still air pressure in Lihong 2〇 and the south pressure is 4G. Because the inlet/exhaust control switch 45 is turned on, it is relatively low pressure, so the oil will flow toward the high pressure red 4G direction first. And the piston 43 in the high pressure pneumatic cylinder 4G is pushed downward, whereby the secret cylinder 1 can be moved very quickly, as shown in the second figure. When the high pressure pneumatic cylinder 4G (4) deposits - the quantitative oil (4) generates a set surface force, the oil flows to the high pressure pneumatic cylinder 4 〇 and the low pressure pneumatic cylinder 2 同时 simultaneously, and pushes the piston in the second pressure rainbow to move downward. At this time, the movement of the buffer cylinder 1 will be slower, as shown in the third figure. After the ram cylinder rises, the buffer cylinder 1 reaches the bottom dead center and starts to rise back. The B temple needs a large force to raise the piston of the buffer cylinder 1 at the beginning, so at the beginning, the oil circuit switch 3G will be closed first. The intake/exhaust control switch 〆Μ丨 is switched to the intake position, and then the gas is supplied to the high pressure cylinder 4G by the external gas supply cleavage, so that the piston 43^_ of the high pressure cylinder 40 is Forcing the high-pressure gas-supply 40 _ oil to be squeezed back into the buffer 201103743 cylinder 1 via the rear oil delivery g 12 , the return oil line 5G and the front oil delivery pipe u, and after the high pressure pneumatic cylinder 40 is started, a predetermined time, For example, after 0.5 seconds or 1 second, the oil circuit switch 30 is turned on again, so that the oil originally stored in the low pressure pneumatic cylinder 20 is squeezed out due to the back pressure of the gas pressure in the low pressure pneumatic cylinder 2 The pneumatic cylinder 20 is similarly followed by the rear oil delivery pipe 12, the oil return line 50 and the front oil delivery pipe u being squeezed back into the buffer cylinder, and simultaneously pressing the two pneumatic cylinders can make the buffering speed fast. The position of the top dead center is connected to the next punching action.
糟由本發明的結構，該低壓氣壓 # 氣體壓力可以返覆的料⑽▲ 内了以持續畜存一 僅可以解決昔用產時使用，如此-來不 201103743 【圖式簡單說明】 第一圖為本發明的結構示意圖。 第二圖至第四圖為本發明作動時之動作流程分解示意 圖。 【主要元件符號說明】 緩衝缸1 後輸油管12 缸體22 油路開關30 缸體42 進/排氣控制開關45 回油管路50 逆止閥51 調壓閥10 低壓氣壓缸20 活塞23 高壓氣壓缸40 活塞43 前輸油管11 第一油壓管路21 氣孔24 第二油壓管路41 管路44 凸部46According to the structure of the present invention, the low pressure air pressure # gas pressure can be returned to the material (10) ▲ in order to continue the livestock storage can only be used to solve the previous use, so - not 201103743 [Simple description of the diagram] The first picture is A schematic view of the structure of the present invention. The second to fourth figures are schematic exploded views of the action flow when the present invention is activated. [Main component symbol description] Cushioning cylinder 1 Rear oil delivery pipe 12 Cylinder block 22 Oil circuit switch 30 Cylinder block 42 Inlet/exhaust control switch 45 Oil return line 50 Check valve 51 Pressure regulating valve 10 Low pressure pneumatic cylinder 20 Piston 23 High pressure pneumatic cylinder 40 Piston 43 Front oil pipe 11 First oil pressure line 21 Air hole 24 Second oil pressure line 41 Line 44 Projection 46