Bottom mold guide rail lifting mechanism

[0017] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] see figure 2 As shown, a bottom mold guide rail lifting mechanism is located on the blow molding machine, including a frame 1, a bottom mold installation device 2 that is lifted and lowered on the frame 1, and a bottom mold installation device 2 that is arranged on the frame 1 to drive the bottom mold. The driving cylinder 3 for the lifting of the installation device 2 and the connecting piece 4 that is rotatably connected with the bottom mold installation device 2 . The driving cylinder 3 is horizontally arranged on the frame 1, and includes a cylinder barrel 31 with an inner cavity, and a piston rod 32 movably inserted in the inner cavity of the cylinder barrel 31. connected. Here, by setting the driving cylinder 3 horizontally, the installation space of the cylinder is effectively saved.

[0019] In this embodiment, the bottom mold installation device 2 includes a bottom mold guide rail mounting seat 21 that is rotatably connected to the frame 1 at one end, a bottom mold guide rail 22 installed on the bottom mold guide rail mounting seat 21, The bottom mold support 23 on the mold guide rail 22, the connector 4 includes a connecting rod 41 that is rotatably connected to the bottom mold guide rail mounting seat 21, a slide block 43 that is horizontally slidably arranged on the frame 1, and is fixed on the frame 1. The hinge support 42 on the slide block 43 is fixedly connected to the hinge support 42 by the other end of the connecting rod 41 . Preferably, in this embodiment, one end of the piston rod 32 is also connected to the hinge support 42 . More preferably, the other end of the connecting rod 41 , one end of the piston rod 32 and the hinge support 42 are all fixedly connected at the same point.

[0020] In this embodiment, the elevating mechanism also includes a cylinder mounting seat 6 for installing the driving cylinder 3 on the frame 1, a slide rail 5 provided on the frame 1 for the slide block 43 to slide, and the slide block 43 is slidably arranged in the slide rail 5 along the length extension direction of the slide rail 5 . Preferably, the extending direction of the sliding rail 5 is parallel to the axial direction of the piston rod 32 . By setting the slide rail 5, the movement track of the slider 43 is effectively limited, thereby improving the stability and precision of the lifting mechanism of the present invention.

[0021] The working process of the bottom mold guide rail lifting mechanism is as follows: in the present embodiment, the bottom mold guide rail mounting seat 21 is hinged with the frame 1 through the first hinge shaft 24 on one end, and is hinged with the frame 1 through the second hinge shaft 25 on the other end. The connecting rod 41 is hinged. When the driving cylinder 3 drives the piston rod 32 to shrink, because the piston rod 32 is connected to the hinge support 42, the slide block 43 slides on the slide rail 5 along the shrinking direction of the piston rod 32, and then is fixedly connected to the hinge support 42. The connecting rod 41 drives the bottom mold guide rail mounting seat 21 to rotate downward around the first hinge shaft 24, so that the bottom mold guide rail 22 provided with the bottom mold support 23 installed on the bottom mold guide rail mounting seat 21 descends; when the driving cylinder 3 When driving the piston rod 32 to elongate, the slide block 43 slides on the slide rail 5 toward the elongation direction of the piston rod 32, and drives the bottom mold guide rail mounting seat 21 to rotate upwards around the first hinge shaft 24 through the connecting rod 41, thereby driving Bottom mold guide rail 22 rises.

[0022] The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.