JPS6020275B2 - Filling machine container lifting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION As a means for sealing a filling container during filling in a reverse pressure type filling machine, it is known from JP-A-47-29071 that a lever device lifts and lowers the tulip of the filling valve to seal it. There is.

However, with this method, when disassembling the filling valve, the lever device must also be removed, making assembly and disassembly operations extremely troublesome, and the lever device and operating cams overlap, requiring extra space outside the filling machine. In addition, there are defects such as misalignment of the filling valve, and furthermore, when the opened filling container passes under the lever device after filling, abrasion powder from the driving parts and operation falls into the filling container. There is a risk of contamination, and there are defects that are undesirable from a sanitary standpoint. It is also known to move the lifter of the filling container up and down with air for sealing, but the piston packing used at high pressure suffers from large permanent deformation, and when used at low pressure, sealing failure occurs, and air contamination occurs. The air circuit may become clogged with foreign matter, causing malfunction, and in either case, the filling operation must be interrupted each time.

Furthermore, there is a defect in that moisture, oil, foreign matter, etc. mixed in the exhaust air contaminate the filling chamber, filling machine, filling liquid, etc. The present invention is intended to improve these deficiencies.
A lifting shaft having a container teaching table on the upper part is engaged with the tip of a lifting arm that is pivoted on a base, and the other end of a lotus pestle, which is pivoted approximately in the center of the lifting arm, is attached to the lower part of the punch shaft attachment part. The short arm of the L-shaped lever is pivoted to the tip of the short arm, and the long arm of the L-shaped lever is urged downward by a spring, and the tip of the long arm is moved by a fixed cam. It is.

An embodiment of the present invention will be explained with reference to the drawings. A lifting shaft 2, which is provided with a container teaching table 1 on the top, which is located below a filling valve of a differential pressure type rotary filling machine, is vertically connected to a guide tube 4 provided on a rotary table 3. A guide roller 7 is provided via an eccentric bush 6 to a guide pin 5 which is movably supported and protrudes from its lower end.

Rotary table 3 on the inner side of the guide roller 7
An elevating arm 9 is pivotally attached to a frame 8 that rotates together with the elevating arm 9, and a forked guide portion 10 at the tip of the elevating arm 9 is iron-coupled to the guide loaf 7. A Hasumura 12 is pivotally attached to the approximate center of the arm 9 via a pin 11.

In addition, an L-shaped lever 15 having long and short arms 13 and 14 is stuck to the frame 81 below the Hasumura shaft, and the tip of the short arm 14 of the L-shaped lever is stuck to the edge of the punch 12. At the same time, the long arm 13 is urged downward by the spring 16, and a cam roller 17 attached to the tip is in sliding contact with a fixed cam 19 provided on the base 18, and the fixed cam 19 is in the filling position. The lifting arm 9 is formed to raise the lifting shaft 2 by rotating the L-shaped lever 15 clockwise via a cam roller 17.

Since the embodiment of the present invention is constructed as described above, the cam roller 17 of the L-shaped lever 15 is fixed to the fixed cam 19 during filling.
The short arm 14 and the Hasumura 12, which are guided by the L-shaped lever 15 to rotate clockwise and are in a bent state, extend substantially in a straight line to push up the lifting arm 9 and engage the lifting shaft. 2 and the filling container on the container platform 1 collides with the filling valve to seal it, and after filling is completed, the fixed cam 19 moves to L.
By rotating the mold lever 15 counterclockwise, the cam roller 17 is raised in the opposite direction to the above, and the elevating shaft 2 is lowered. The present invention is a short arm of an L-shaped lever in which the lower end of an elevating shaft having a container stacking table is engaged with the tip of an elevating arm, and the pond end of a lotus pestle attached to the approximate center of the elevating arm is supported below. At the same time, the tip of the long arm of the L-shaped lever, which is urged downward by the spring, is guided by a fixed cam, so that the lifting shaft with the container counterfeit stand uses the lever action of the L-shaped lever and the link mechanism. In addition to being able to move up and down smoothly and easily, especially when the lifting shaft is raised to its maximum, i.e. when sealing the filling container, the lever fulcrum of the L-shaped lever, the pivot point of the lotus pestle and the short arm, and the attachment point of the lifting arm of the lotus pestle are used. are aligned almost in a straight line to generate the maximum force to easily and reliably seal the filled container, and to raise and lower the container stacking table in a reverse pressure filling machine by exerting a high load with light drying force. be able to.

Furthermore, the present invention does not require extra space on the outside of the filling machine, unlike the tulip lifting system of the filling valve using a subordinate lever device, and can be stored compactly inside the filling machine, making it easy to adjust the filling valve. Moreover, the driving parts of the lever device and wear debris will never fall into the filling container. Furthermore, unlike the conventional lifter elevating and lowering system using air, it has excellent features such as no sealing failure of the piston pax or contamination problems caused by exhaust air.

[Brief explanation of the drawing]

The drawing is a longitudinal sectional front view of the present invention. 1... Container teaching platform, 2... Lifting axis, 9...
Lifting arm, 12... mallet, 13... long arm, 14... short arm, 15... L-shaped lever, 16...
...Spring, 19... Fixed cam.

Claims (1)

[Claims] 1 Engage with the tip of a lifting arm that pivotally supports the lower end of a lifting shaft having a container mounting table on the top on a base, and attach the other end of a connecting rod that is pivoted approximately at the center of the lifting arm to the connecting rod. It is pivoted to the tip of the short arm of an L-shaped lever that is pivoted downward, and the long arm of the L-shaped lever is urged downward by a spring, and the tip of the long arm is brought into sliding contact with a fixed cam, and the fixed cam is A container elevating device for a filling machine in which an elevating arm raises an elevating shaft at a filling position.