公开(公告)号：US12076889B2

公开(公告)日：2024-09-03

申请号：US17614042

申请日：2020-04-13

Applicant: KOSMEK LTD.

Inventor： Hiroshi Akamatsu

IPC: B29C33/32 ,  B22D17/22 ,  B22D17/26 ,  B22D17/32 ,  B22D33/00 ,  B29C45/76 ,  B29C45/84 ,  G01N19/04 ,  H01F7/08 ,  H01F7/16

CPC classification number: B29C33/32 ,  B22D17/22 ,  B22D17/26 ,  B22D17/32 ,  B22D33/00 ,  B29C45/76 ,  B29C45/84 ,  G01N19/04 ,  H01F7/081 ,  H01F7/16

Abstract: The present invention enables confirmation that a mold magnetically adhered by a magnetic clamping device has been magnetically adhered by a sufficient adhesion force so as not to be pulled off from the magnetic clamping device by a mold opening force of a mold handling device. A controller 7 carries out magnetization of a magnetic clamping device 10 such that a magnetic adhesion force weaker than that in normal magnetization is generated in a state where molds M1, M2 are bound together, and carries out a test to determine whether separation of the molds M1, M2 would occur when platens 2, 3 are separated. The controller issues a warning regarding lack of guaranteed adhesion force to an operator when separation is detected, and carries out normal magnetization of the magnetic clamping device 10 when separation is not detected.

公开(公告)号：US12042971B2

公开(公告)日：2024-07-23

申请号：US18071103

申请日：2022-11-29

Applicant: KOSMEK LTD.

Inventor： Masakazu Yoshida

IPC: B29C45/80 ,  B29C45/76

CPC classification number: B29C45/80 ,  B29C45/7653 ,  B29C2945/76006 ,  B29C2945/76083 ,  B29C2945/7623 ,  B29C2945/76387 ,  B29C2945/76394 ,  B29C2945/76568 ,  B29C2945/76702 ,  B29C2945/76709

Abstract: In the present invention, constructed is a highly reliable system that does not allow unforeseen conditions to occur in the remote diagnosis of a clamp device. All combinations of status of a state detection switch mounted on a clamp device are anticipated in advance by a recursive method, and the states are defined with no omissions. A control unit 9 includes: a main body memory 9c that stores the ON/OFF state of a state switch together with the status of an injection molding machine main body, the clamp status and time information; and a main body communication unit 9d which is capable of short-range wireless communication. A message diagnosing a failure is stored in a smartphone 12 for all combinations of the ON/OFF state of the state detection switch for each of the following cases: whether in mold replacement mode or not; and whether a clamp device is in a clamped state or an unclamped state, or in a state other than the forgoing. The history of the ON/OFF state of the state detection switch with respect to the status of the main body and the clamp status is read from the main body memory 9c by wireless communication, and a corresponding message is displayed.

公开(公告)号：US20230100690A1

公开(公告)日：2023-03-30

申请号：US17941089

申请日：2022-09-09

Applicant: KOSMEK LTD.

Inventor： Masahiro YOSHIMI

IPC: B29C45/64

Abstract: Provided is a magnetic clamp device that can be easily made into a state where a fall prevention function can be exerted when attaching adsorption objects.
A support member (20) is protruded horizontally from an upper part of a magnetic plate (7) of the magnetic clamp device. A protruding member (28) is protruded upward from a mold as an adsorption object that is adsorbed and fixed to an adsorption surface (8) of the magnetic plate (7). The mold (9) is arranged so that the engagement portion (32) faces the locking portion (27) with a predetermined gap above the locking portion (27) in a state where the mold (9) is adsorbed and fixed at a predetermined position on the adsorption surface (8).

公开(公告)号：US20220277876A1

公开(公告)日：2022-09-01

申请号：US17631483

申请日：2020-07-16

Applicant: KOSMEK LTD.

Inventor： RYOTA KOJIMA

IPC: H01F7/04 ,  F16B2/06

Abstract: Provided is a magnetic clamp device having a disassembly structure that is easy to maintain. In the magnetic clamp device 1, a magnetic pole 21 and an alnico magnet 23 each have fastening holes 21a, 23a that communicate with each other. The cavity portion 31 of the plate body 3 has an opening 33 that penetrates from the bottom surface 32b thereof to the back side of the plate body 3. A cap 7 having a base portion 71 having a bolt hole 74 communicating with the fastening holes 21a, 23a and a flange portion 72 abutting the surface 3b of the back side of the plate body 3 is inserted into the opening 33. A bolt 8 inserted into the fastening hole 23a of the magnetic pole 21 and the alnico magnet 23 from the front side of a magnetic pad 2 is screwed into a female screw thread 74a provided in the bolt hole 74 of the cap 7.

公开(公告)号：US11426901B2

公开(公告)日：2022-08-30

申请号：US16976489

申请日：2019-04-01

Applicant: KOSMEK LTD.

Inventor： Hiroshi Akamatsu ,  Masakazu Yoshida ,  Shotaro Murata ,  Ikkyu Oda

IPC: B29C33/20 ,  B29C45/64 ,  B29C45/76 ,  H01F7/02

Abstract: Provided is a magnetic clamp device that is capable of more finely measuring an induced voltage generated in a coil and selecting countermeasures against reductions in magnetization force. Multiple magnet blocks 11, 21 each comprising an invertible magnet 18, the polarity of which can be inverted, and non-invertible magnet 15, are positioned on a surface of a plate PL composed of magnetic body magnetically clamping a mold M1, M2 when in a magnetized state. The magnetic flux traversing the invertible magnet 18; and a control device 33 that determines whether or not there has been a polarity inversion in the induced voltage detected from the coil 31, and if there has been a polarity inversion, warns that the adhesion of the molds M1, M2 has decreased.

公开(公告)号：US11141837B2

公开(公告)日：2021-10-12

申请号：US15559970

申请日：2016-05-30

Applicant: KOSMEK LTD.

Inventor： Masahiro Yoshimi ,  Keitaro Yonezawa ,  Kenta Otani

IPC: B25B5/02 ,  B23Q3/06 ,  B25B5/10 ,  B25B5/16

Abstract: A clamp rod (2) is inserted into a housing so as to be movable in a vertical direction. An attachment hole (6) is provided at a left end portion (3a) of a clamp arm (3), which is attachable to and detachable from the clamp rod (2). The attachment hole (6) passes through the left end portion in the vertical direction. An accommodation hole (8) is provided at a position to the upper right of the attachment hole (6). A transmission member (10) and a wedge member (15) configured to be brought into wedge engagement with the transmission member (10) from above are inserted into the accommodation hole (8). At the time of attaching the clamp arm (3) to the clamp rod (2), the wedge member (15) is pressed downward using a tightening bolt (21), and thereby the wedge member (15) presses the attachment hole (6) via the transmission member (10) and the clamp rod (2), and presses the accommodation hole (8).

公开(公告)号：US11110560B2

公开(公告)日：2021-09-07

申请号：US16482807

申请日：2018-03-14

Applicant: KOSMEK LTD.

Inventor： Keitaro Yonezawa

IPC: B23Q3/06 ,  B25B5/06 ,  B23Q1/00 ,  B23Q3/10 ,  F15B15/14

Abstract: A piston (4) is inserted in a housing (1) so that the piston (4) is vertically movable. A housing hole (5) is vertically provided in the piston (4), and an output rod (6) is inserted in the housing hole (5) so that the output rod (6) is vertically movable. A converting mechanism (22) converts vertical movement of the piston (4) into rotary movement of the output rod (6). A guide groove (28) is provided in a circumferential direction on an inner circumferential wall of the housing hole (5), and a stopping part (29) is provided at an end part, in the circumferential direction, of the guide groove (28). An engaging member (31) which is provided on an outer circumferential wall of the output rod (6) is caused to face the stopping part (29) of the guide groove (28) at a given distance in the circumferential direction from the stopping part (29) so that the engaging member (31) can be in contact with the stopping part (29).

公开(公告)号：US20210164499A1

公开(公告)日：2021-06-03

申请号：US17258591

申请日：2019-07-30

Applicant: KOSMEK LTD.

Inventor： Hideaki YOKOTA ,  Keitaro YONEZAWA

IPC: F15B15/28 ,  B23Q3/08 ,  F15B15/14

Abstract: A plurality of detection valves (12 and 13) are provided to a housing (1), and at least one air passage (14 and 15), which communicatively connects the detection valves (12 and 13) to each other in series, are provided to the housing (1). One or some of the detection valves (12 and 13) are each configured as a throttle detection valve (13) including a throttle passage (56a).

公开(公告)号：US10751842B2

公开(公告)日：2020-08-25

申请号：US15507362

申请日：2015-10-06

Applicant: KOSMEK LTD.

Inventor： Yosuke Haruna

IPC: B23K37/053 ,  B23Q1/00 ,  F16B21/16 ,  F16B2/16 ,  F16B1/00 ,  F16B21/18

Abstract: A first rod (21) is inserted into a first guide hole (11) so as to be movable in a vertical direction. A second rod (22) is inserted into a second guide hole (12), which crosses the first guide hole (11), so as to be movable in a horizontal direction. An accommodation groove (31) is disposed in a lower half portion of the first rod (21). The second rod (22) is provided with an insertion portion (32) to be fitted in the accommodation groove (31). A cam groove (38) provided in the insertion portion (32) is fitted over a pin (35) provided in the lower half portion of the first rod (21). A drive transmission (D) connected to the second rod (22) moves the second rod (22) in the horizontal direction.

公开(公告)号：US10400904B2

公开(公告)日：2019-09-03

申请号：US15508189

申请日：2015-10-21

Applicant: KOSMEK LTD.

Inventor： Akira Arisato

IPC: F16K17/10 ,  F16K39/00 ,  F16K43/00 ,  F16K39/02 ,  F16K17/04

Abstract: A first relief valve chamber (3) of a main relief valve (10) and a second relief valve chamber (7) of an auxiliary relief valve (11) are provided in series in a valve case 1. The first relief valve chamber (3) includes a valve seat chamber (4) at the right and a valve chamber (5) at the left. A first valve member (30) in the valve chamber (5) is biased toward a valve seat member (18) in the valve seat chamber (4) by a first relief spring (40). A second valve member (48) in the second relief valve chamber (7) is biased toward a second valve seat (47) by a second relief spring (50).