Provided is an attaching/detaching structure that operates reliably with simple operation. The attaching/detaching structure attaches/detaches a second connecting member (4) to/from a first connecting member (3). An operation chamber (8) formed in a base member (5) of the second connecting member (4) is connected to the outside of the base member (5) via an insertion hole (7) opened to a seating surface (6) of the first connecting member (3). Two clamp arms (10) and (11) are provided in the operation chamber (8) so as to be symmetrical around an axial center of the operation chamber (8). An engaging portion (16, 17) is formed at one end (10b, 11 b) in longitudinal direction of each of the clamp arms (10, 11). An engaging member (32) protruding from the second connecting member (4) can be inserted into the insertion hole (7). A lock portion (34) in which the engaging portions (16, 17) can be engaged is formed in the engaging member (32).

An injection molding system according to an aspect of the present disclosure is for performing insert molding, and includes: an opening-closing mechanism configured to open and close a pair of molds; an injection device configured to inject a resin into a space that is formed between the pair of molds when the pair of molds has been closed; and a positioning mechanism having a holding member configured to hold an insert part, the positioning mechanism configured to position the insert part between the pair of molds, and to cause the holding member to continue holding the insert part between the pair of molds even after the opening-closing mechanism starts to operate to close the pair of molds.

Manufacturing a molded part using one injection molding machine while changing between multiple molds includes performing, at a molding operation position in the injection molding machine, clamping, injection, and dwelling of a mold, conveying the mold from the molding operation position and performing a process of cooling the mold at a position different from the molding operation position, conveying the mold to the molding operation position, opening the mold, and ejecting a molded part from the mold, wherein, before performing the first step for a first mold, a molded part previously ejected from a second mold is placed into the first mold that has been opened.

An injection molding system according to an aspect of the present disclosure is for performing insert molding, and includes: an opening-closing mechanism configured to open and close a pair of molds; an injection device configured to inject a resin into a space that is formed between the pair of molds when the pair of molds has been closed; and a positioning mechanism having a holding member configured to hold an insert part, the positioning mechanism configured to position the insert part between the pair of molds, and to cause the holding member to continue holding the insert part between the pair of molds even after the opening-closing mechanism starts to operate to close the pair of molds.

A work holding mechanism includes a body part having a three-dimensional shape including at least a recess or a protrusion, and an adsorption part for holding a work by adsorbing the work onto the body part in conformity to the three-dimensional shape of the recess or the protrusion provided in the body part. The work is held by being adsorbed in conformity to the three-dimensional shape of the body part, and, therefore, the amount of usage of the work in a work molding system can be reduced as compared with when the work is held so as to have a flat shape.

A work holding mechanism includes a body part having a three-dimensional shape including at least a recess or a protrusion, and an adsorption part for holding a work by adsorbing the work onto the body part in conformity to the three-dimensional shape of the recess or the protrusion provided in the body part. The work is held by being adsorbed in conformity to the three-dimensional shape of the body part, and, therefore, the amount of usage of the work in a work molding system can be reduced as compared with when the work is held so as to have a flat shape.

A molding system 10 for manufacturing a molded article Q by integrally molding a sheet-shaped insert member S and a molding material R, the molding system comprising: a sheet supply part 20 configured to supply the insert member S; a sheet heating part 30 configured to heat the insert member S; a molding apparatus 100 configured to form the molded article Q by integrally molding the insert member S and the molding material R; an ejector 200 including a delivery position 222 and configured to transfer the insert member S between the sheet heating part 30 and the molding apparatus 100 and to eject and transfer the molded article Q from the molding apparatus; and a transfer robot configured to transfer the insert member S or the molded article Q between the sheet supply part 20 and the ejector.

Provided is an attaching/detaching structure that operates reliably with simple operation. The attaching/detaching structure attaches/detaches a second connecting member (4) to/from a first connecting member (3). An operation chamber (8) formed in a base member (5) of the second connecting member (4) is connected to the outside of the base member (5) via an insertion hole (7) opened to a seating surface (6) of the first connecting member (3). Two clamp arms (10) and (11) are provided in the operation chamber (8) so as to be symmetrical around an axial center of the operation chamber (8). An engaging portion (16, 17) is formed at one end (10b, 11b) in longitudinal direction of each of the clamp arms (10, 11). An engaging member (32) protruding from the second connecting member (4) can be inserted into the insertion hole (7). A lock portion (34) in which the engaging portions (16, 17) can be engaged is formed in the engaging member (32).

This injection molding system can correct a change in position of a movable mold due to a mold clamping force adjustment mechanism, and is provided with: an injection unit that injects a resin into a cavity formed by a movable mold and a fixed mold; a mold clamping unit that retains the movable mold and the fixed mold to be openable and closable and has a mold clamping force adjustment mechanism that adjusts mold clamping forces of the movable mold and the fixed mold; a handling unit that performs at least one of the assisting operations of an operation of extracting a molded article from the movable mold and an operation of inserting an insert component into the movable mold; and a control system that controls the injection unit, the mold clamping unit, and the handling unit. The control system has a mold position detection portion that detects the position of the movable mold during mold opening, and an operation position adjustment portion that adjusts at least one of the position of the handling unit during the assisting operation and the position of the movable mold during the mold opening according to a detection value of the mold position detection portion.

The present disclosure provides a treadmill with an integrated base and a manufacturing method for the integrated base, the treadmill includes the integrated base, a running board, a running belt, an electric motor, an electric control, and a drum. The integrated base includes a horizontally and longitudinally arranged support rod that is integrally formed, the support rod is enclosed to form a rectangular base. The horizontally and/or longitudinally arranged support rod is wrapped with a metal member, the integrated base is provided with an installation part for the running board, running belt, electric motor, electric control, and drum. This setting overcomes a shortcoming of a complex structure of the existing treadmill base, eliminates a high production cost of welding assembly, reduces environmental pollution, and requires lower personnel skills. It has the advantages of simple assembly and low manufacturing cost.