JPS5853395A - Cam press which has jointly utilized hydraulic and air pressure - Google Patents

Abstract

PURPOSE:To obtain a titled press which is capable of executing the positioning and timing of press working exactly and easily, by constituting so that a cam provided between an arm and a cam floor can be controlled in order to move up and down upper and lower mold fitting sliders. CONSTITUTION:By operation of a hydroulic pressure or air pressure cylinder 1 provided on a press bottom plate 14, an upper arm 3 and a lower arm 8 connected to it by an upper and lower connecting rod 7 are turned, upper and lower clamping cams 5, 9 installed to them are turned, and also upper and lower mold fitting sliders 18, 19, and an upper mold 16 and a lower mold 17 are moved up and down through upper and lower cam floors 6, 20, by which press working is executed. Said cams 5, 9 are constituted so that they can be freely attached and detached to and from upper and lower cam shafts 4, 12, and positioning and timing of press working can be adjusted.

Description

Detailed Description of the Invention The present invention can be used in powder molding presses, sizing presses, rubber presses, plastic presses, and other presses, and has a simple structure that uses a cam to accurately position the ram. It is.

A cylinder 1 capable of reciprocating gas and liquid pressure is supported by a bearing on a base plate 14, and by operating a piston 2, an upper arm 3 is lifted and a cam 5 attached to a camshaft 4 is rotated. . The rotational force of the cam is transmitted to the cam floor 6 which is in contact with the cam, thereby pushing down the upper ram 18. The work is performed accurately using jigs, molds, etc. fixed to the ram, so the lowering position of the upper ram does not change each time, and the arm length allows a large tightening force to be obtained even with a small output from the piston. On the other hand, as the shaft 11 rises in conjunction with the movement of the upper arm 3, the connecting rod 7 rises, the lower arm 8 is moved, the lower cam 9 rotates, and the lower ram 19 rises via the cam floor and is installed. The jig 17 then goes up and does the work.

At the end of the work, when the piston goes down, arm 3 goes down and the upper and lower clamping forces of the press disappear and the ram opens.

As explained above, the power source is small because force is exerted through the arm, and all movements are done mechanically, so it can be accurately positioned and activated in time.

[Brief explanation of drawings]

The drawing is 9B procedural amendment document of 1982 Patent Application No. 189959 of the cam press using the hydraulic and pneumatic system of the present invention. 2. Title of the invention Cam press 3 using both hydraulic and pneumatic pressures.Relationship with the case of the person making the amendment Patent applicant address 3-9-20 Ayanishi, Ayase City, Kanagawa Prefecture Name (Name) 1) Makoto Sawa 4, Agent Description Name of the invention Cam type press Patent Claims A pair of upper and lower mold mounting sliders 4.5 that face each other and move up and down between the side frames 2.3 arranged on the left and right sides of the bed 1, and the pair of upper and lower mold mounting sliders 4.5. A rotating arm 18 for vertically moving each of the mold mounting sliders 4 and 5, a connecting rod B for connecting between the upper and lower rotating arms, It consists of a cylinder 21 operated by hydraulic pressure or depletion, and the interlocking mechanism between the two lower swing arms 18.19 and the upper and lower mold mounting slides 1-4, 5 is a cam attached to the upper and lower swing arms 8.19. 26.27 and 1 mounting slider for upper and lower regions 4.5
The cams 26 and 27 are also mounted on the opposite side of the mold attachment part of the
The cam 2 consists of a cam rich row 1131 that is in contact with the cam 2.
6.27 cam” through the pivot arm-18 curve A
, 19 and to the upper and lower die mounting sliders 4.5, and by adjusting the mounting positions of the cams 26 and 27, the press working position and press working timing can be determined easily and accurately. Features a cam type press. 6. Detailed Description of the Invention The present invention relates to a cam press. More specifically, the upper mold mounting slider and the lower mold mounting slider are each equipped with a cam for moving the mold mounting slider up and down, and by adjusting the cams separately, the press processing position can be easily and accurately positioned. can be determined,
The present invention also relates to a cam type press that can easily and accurately control the processing timing of the upper and lower mold mounting sliders at the press processing position. Conventionally, powder molding presses and the like are known in which upper and lower mounted sliders are operated directly and separately by hydraulic or pneumatic cylinders, respectively. However, the powder molding presses and the like in which the upper and lower mold mounting sliders are operated directly and separately as described above have the following problems. That is, (1) it is difficult to set the accurate positioning of the press working position, and (2) it is difficult to accurately set the working timing at the press working position. The present invention has been made in view of operational considerations, and its gist is to provide a pair of upper and lower mold-mounted sliders that face each other and move up and down between side frames disposed on the left and right sides of a bed; A rotating arm for vertically moving each of the pair of upper and lower mold mounting sliders, a connecting rod for connecting the upper and lower rotating arms, and hydraulic or pneumatic pressure for operating either one of the rotating arms. The interlocking mechanism of the upper and lower swing arms and the upper and lower mold mounting sliders is composed of an operating cylinder, and the interlocking mechanism of the upper and lower swing arms and the upper and lower mold mounting sliders includes a cam mounted on the upper and lower swing arms, and a cam mounted on the opposite side of the mold mounting section of the upper and lower mold mounting sliders. A cam hollow is attached to the cam and is in contact with the cam, and the movement of the swing arm is transmitted to the upper and lower mold mounting sliders via the cam crest curve of the cam, and the mounting position of the cam is adjusted. This is a cam type press that can easily and accurately determine the press working position and press working timing, and its purpose is to:
■The vertical movement of the upper and lower die mounting sliders is performed via a cam, and by adjusting the mounting angle of this cam, the timing of the start and end of the processing process can be easily and accurately set, and ■Press processing position The purpose of the present invention is to provide a press suitable for powder molding presses, etc., which enables easy and accurate setting of . Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 and 2 of the accompanying drawings show an embodiment of the present invention. Reference numeral 1 denotes a bed, which has a right side frame 2 and a left side frame 3 on both sides. An upper mold mounting slider 4 and a lower mold mounting slider 5 are installed approximately in the center between the left and right side frames 2.3, facing each other, and a pair of upper slider guides 6 and a pair of lower slider guides 7 are installed, respectively.
The upper and lower slider guides are fixed to the left and right side frames 2.3 by support members 8, respectively. An upper pivot shaft 9 is mounted on the upper part of the upper mold mounting slider 4, and both ends of the upper pivot shaft 9 are attached to bearings 10.11 that are vertically movably mounted on the left and right side frames 2.3. Each bearing 10.1 has an adjusting screw rod 1.
2.13 is connected, and the adjusting screw rod 12.13
The bearings 10 and I+ are moved up and down by turning rotary handles +4 and +5 fixed to the ends G of the bearings. Next, reference numeral 16 denotes a lower pivot shaft, which is rotatably supported at both ends by bearings 17. Swivel arms ]8 and ]9 for vertically moving the upper and lower mold mounting sliders 4.5 are fixed to each of the pivot shafts 9.16, and the free ends of the upper swing arms ]8 are connected to each other. It is connected to the piston shaft n of the hydraulic cylinder 2+ via an axial connection. Then the free end of the lower pivot arm 19 and the upper pivot arm 1
The vicinity of the free end of 8 is connected via a connecting rod O, so that the upper swing arm 18 and the lower swing arm 19 are interlocked. The above connecting rod and vertical swivel arm! 8 and +9 are attached using a connecting bolt 24, and the connecting port 24 is screwed into the nut 5. and said upper and lower pivot axes 9.16.
The cams 26 and 27 having the cam crest curve A are attached to the cams 26 and 27 using mounting bolts 4 so that the mounting position can be changed. Nod again, 31 is a cam hollow and the above upper and lower mold mounting sliders 9.16
is rotatably attached via shaft rods 32 and 33,
The mold mounting slider 9.16 is moved up and down by contacting the cam hollow 31 with the cam portion 4. Although the upper mold mounting slider 9 is not shown, it is always under tension upward due to the tension of a spring disposed in the sliding groove of the upper mold mounting slider guide, and the lower mold mounting slider 16 is also under tension. Similarly, the lower slider guide 7 receives a downward force due to the tension of a spring disposed in the sliding groove, and the above-mentioned f 6
) The upper and lower mold mounting sliders 9 and 16 quickly return to their original states due to the tension of the spring when the pressure from the cam portion 1 is released. Note that 34 is an upper die attached to the upper die attachment slider 9, and 35 is a lower die attached to the lower die attachment slider. Next, a usage example will be explained based on the above configuration. First, the upper mold 34 is mounted on the Dobe mold mounting slider 9, and the lower mold 35 is mounted on the lower mold mounting slider 16, respectively. At this time, it is desirable to adjust the shut bite by turning the rotary handle 14 to obtain the optimum size. In this way, after adjusting the shut bite, the hydraulic cylinder 21 operates to adjust the piston axis n.
When the upper pivot arm 18 is pushed upward, the free end of the upper pivot arm 18 connected to the piston shaft 22 via the connecting shaft is pushed upward, and the upper pivot shaft 9 starts to pivot. In this way, when the two-part pivot shaft 9 begins to pivot, the upper cam section mounted coaxially with the pivot shaft 9 also pivots together, and the upper force (7) is formed on the circumferential surface of the cam station. The cam hollow I that is in contact with the cam peak curve A is pushed down. As a result, the tip of the upper die attached to the upper die attachment slider 6 to which the cam hollow is attached is lowered to the press working position B. Capacity: At the same time as the upper die 34 is lowered, the upper rotating arm 18 and the lower rotating arm 19, which are connected to each other via a connecting ring, rotate in conjunction with each other, so that the lower rotating shaft 16 also moves downward. Since the lower cam n attached to the lower rotating shaft 16 rotates simultaneously with the upper rotating shaft 9, the cam hollow 31 attached to the lower mold mounting slider 5 that is in contact with the lower cam n also rotates. is pushed upward by the cam crest curve A of the lower cam n. As a result, the lower die attached to the lower die mounting slider 5 moves up to the press working position B and performs press working in cooperation with the upper die that has come down from above. The above-mentioned press working position B can be easily and accurately determined by changing the mounting angle of the upper and lower cams 26.27 with respect to the upper and lower turning shafts 9.16. Suppose that I is set at a certain position B in the space facing I, and now the actual press processing position shifts and the position B above
If it is above the line, loosen the mounting bolt part 4 that fixes the upper cam part 4, turn the upper cam part in the direction of arrow T to adjust it, and adjust the mounting bolt row of the other lower cam d. , 4 and turn the mounting position of the lower cam γ in the direction of arrow S to adjust the press working position to move downward. Furthermore, by changing the mounting angle of the upper and lower cams 26, 27 with respect to the pivot shaft 9, 16 as described above, it is possible to obtain the optimum press working timing in accordance with the molding conditions of the object to be molded. In this way, the press working position and press work timing can be adjusted by simply changing the upper and lower cam parts and the mounting angle of the parts without being restricted by the arm length of the swing arms 18, 19 or the operating characteristics of the piston shaft. can be changed easily and accurately. Note that a pneumatic cylinder may be used in place of the hydraulic cylinder used in this example, and since rotary handles 14 and 15 are provided for adjusting the shut bite, this can be used to adjust to different mold heights. Although it was possible to obtain the optimum shut bite, the objective effects of the present invention can be similarly achieved even without the above-mentioned shut bite adjustment mechanism. As described in detail above, the present invention comprises a pair of upper and lower mold mounting sliders 4.5 that face each other and move up and down between the side frames 2.3 disposed on the left and right sides of the bed 1, and a pair of mold mounting sliders 4.5 and 2. Swivel arm for vertically moving each of the sliders 4.5] 8.19 and a connecting rod Z3 for connecting the above-mentioned upper and lower swing arms, and a hydraulic or pneumatic system for operating either one of the above-mentioned swing arms. Cylinder 2 operated by pressure
The interlocking mechanism of the upper and lower swing arms I8.19 and the upper and lower mold mounting sliders 4.5 consists of the cams 26.27 attached to the upper and lower swing arms 18.19, and the four upper and lower mold mounting sliders 4.5. It consists of a cam hollow fitting 31 that is attached to the opposite side of the molded part A of the slider 4.5 and is in contact with the cam 26.27. to transmit the operation of the swing arms 18 and +9 to the upper and lower mold mounting sliders 4.5, and the cam 26
, n, the press working position and press working timing can be determined easily and accurately by adjusting the mounting positions of the cams 26 and n. By adjusting the mounting angle of this cam, it is possible to easily and accurately set the timing of the start and end of the machining process. In addition, the setting of the press working position changes the mounting angle of the cams 26 and n. It can be easily and accurately set without being restricted by the arm length of the above-mentioned swivel arm 18 or 19 or the operating characteristics of the above-mentioned piston shaft, and furthermore, it can be set easily and accurately by a hydraulic or pneumatic cylinder. It has various advantages such as providing a cam-type press that can operate the mold mounting sliders 4.5 at the same time. 4. Brief Description of the Drawings The attached drawings show an embodiment of the present invention, in which FIG. 1 is a rear view and FIG. 2 is a sectional view taken along the line x-x' in FIG. 1. l...Bed 2...Side frame 3...Side frame 4...Upper mold mounting slider 5...Lower mold mounting slider 18...Upper rotating arm 19...・Lower swing arm 21・・・・Cylinder・・Connection rod delivery・・Upper cam N・・Lower cam (9)・・Cam hollow 31・・Cam hollow A・・・・Cam mountain curve B...pressing position j A1. Indication of the case 1982 Patent Application No. 189959 2 Title of the invention Cam press 3 using both hydraulic and pneumatic pressure Relationship with the case Patent applicant address 5-9-10 Kugenuma Shinmei, Fujisawa City Name (Name) ) Futoshi Sumizaki 4. Agent side ■ "4. Brief explanation of drawings" in the specification is amended as follows. 4. Brief explanation of the drawings In the drawings, 1 is a hydraulic or pneumatic cylinder, 3 is an upper arm, 4 is an upper camshaft, 5 is an upper tightening cam, 6 is an upper cam floor, 17 is an upper and lower connecting rod, 8 is a lower arm , 9 lower tightening cams, 12 lower cam shaft, 13 side plate, 14 press bottom plate, 16 upper jig or mold, 17 lower jig or mold, 20 lower cam floor - 121 oil or pneumatic pump ,
22 is the piping to the cylinder.'' ■Amend the attached drawing as shown in the attached sheet.

Claims (1)

[Claims] A press that transmits the reciprocating power of an oil pressure cylinder with a small amount of force to a cam via an arm, accurate positioning and timing of the upper or lower ram and jig, and obtains a large output.