JPS60204495A - Fixture for synthetic-resin cap - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved device for threadably fitting a synthetic resin cap onto a container.

Conventional synthetic resin caps are held by a chuck and then fitted onto the container and screwed together, so the chuck may deform the cap or tilt the cap to fit onto the container. At present, it is not possible to securely seal with screws.

It is also known that the gripper is held by a gripper having capped knurling, and the gripper is connected to a rotating body by a friction transmission member so that the gripper idles with a constant torque, but this is the conventional method.

Since the gripper is equipped with a case, a pressure spring, a pressure adjustment nut, etc., the moment of inflection (6") is large, and the tightening may be due to torque or an inconsistent defect.

The present invention is an attempt to improve these defects with a simple structure, and a cap holding part is provided at the center of a rotary body that rotates by an appropriate mechanism and moves up and down, and is biased downward by a spring. The cap contact plate of the cap holding part is rotatably formed with a bearing, and a cylindrical gripper with knurling on the inner circumferential surface that engages with the knurling on the outer circumferential surface of the cap is arranged slightly above the periphery of the cap holding part. , the cylindrical gripper is clamped between friction transmission members provided on a rotating body at the brim, and is further biased downward by a spring screwed onto the rotating body, and is fitted into the rotating body. The gist is that the friction transmission member is crimped.

An embodiment of the present invention will be described with reference to the drawings. A rotating body (1
) is formed of an upper cylinder (2) and a lower cylinder (3) that is freely fitted only in the axial direction. At the same time, a rotating shaft cylinder (5), which is urged downward by a spring (4), is fitted, and a rotating shaft cylinder (5), which is urged downward by a spring (6), is fitted on the inside of the lower part of the rotating shaft a (5). A presser rod provided with a cap presser portion (7) is fitted so as to rotate integrally.

Further, a disk portion (
9) is fixed to the lower edge of the lower cylinder (3) with a screw aα, and a housing tube (Iυ) is fixed to the outer lower part of the lower cylinder body (3), and a lower part fixed to the locking step α2 in the housing tube (Iυ) Annular friction plate (1
& Above the cylindrical gripper α9, a protruding collar a mark is placed, and furthermore, a tightening annular plate (16) is placed on the upper part of the collar α9.
An upper annular friction plate surface is provided which is fixed to the lower end of the.

Upper and lower annular friction plates as (17) have cylindrical grits between them.
The flange α9 of αa is sandwiched, and a knurl (18) that engages with a knurl on the outer circumferential surface of the cap is formed in the axial direction on the lower inner circumferential surface of the cylindrical grillo/<-I. .

The tightening annular plate tl has a disk portion (9) and a lower cylinder (
The pin housing 9 inserted so as to penetrate through the bottle holder 9 is fitted, and the upper end of the bottle holder is connected to the lower cylindrical body 3 through the sliding plate holder.
) is biased downward by a spring 0υ screwed on the outside.

It is configured so that the Glitzku circle can be rotated by the connecting action between the disc part (9) of the pin α■ and the tightening annular plate αe and the power transmission action to the flange (151) that presses the upper annular friction plate (I7). There is.

Therefore, the lower end of the presser part (7) has grit<-(
The lower end cap contact plate (22) protrudes downward from the lower edge of 141 and connects to the presser rod (8) via the bearing (2).
), so that when the shaft cylinder (5) descends for one revolution and comes into contact with the cap (4), the rotating motion of the presser rod (8) is not transmitted to the cap holder, and the cap holder is Don't rotate~1
It is formed like this.

In the figure, (2) is the needle bearing fitted between the housing tube αυ and the gripper α, and (2!51 is the threaded tightening torque adjustment line ring provided at the upper end of the lower cylinder (3). It is.

Since the embodiment of the present invention is constructed as described above, the container (B) with the cap previously fitted is moved to the rotating body (1).
When the rotating body (1) is fixedly placed below and driven, one rotating body (1
) rotates and descends to lower the rotary shaft cylinder (5), presses the cap holder with the camp presser part (7) of the presser rod (8), and presses the cap contact plate (22) without rotating the cap holder. Fit this correctly into the container. Next, when the rotary shaft cylinder (5) further descends, the gripper side engages with the knurling of the camper, rotates the cap and screws it into the container (6), and the screwing torque reaches a predetermined magnitude. When it reaches the gripper I, the flange α9 of the gripper I slips between the upper and lower annular friction plates (13) an, thereby preventing the cap holder from being screwed in more than necessary.

In this way, when the cap holder is screwed and tightly fitted into the container (), the rotating body (1) rises, the gripper I and the cap holding part (7) are separated from the cap holder, and the screwing and tight fitting process is completed. It ends.

The present invention connects the flange edge of a cylindrical gripper with knurling that engages with the knurling of a synthetic resin cap to a rotating body that moves up and down using a friction transmission member, and also connects the flange edge of a cylindrical gripper with a knurling that engages with the knurling of a synthetic resin cap using a friction transmission member, and attaches the flange of the gripper downward to the center of the rotating body with a spring. A biased camp presser is provided, and the synthetic resin cap that has been previously fitted onto the container is properly fitted onto the container using the cap presser, and then the synthetic resin cap is screwed while being engaged and held by the knurling of the gripper. This eliminates the need to deform the easily deformable synthetic resin cap or screw it together at an angle.

It can be screwed onto the container smoothly and reliably, and after tightening with a constant torque, only the cylindrical gripper idles, so the moment of inertia is small, and stable tightening torque can be obtained without over-tightening.

Further, in the present invention, since the cap contacting surface of the cap holding part is formed to be rotatable via a bearing so as not to transmit the torque of the rotating body to the cap, one synthetic resin cap can be rotationally screwed together with the cap holding part. This means that the gripper can be fitted into the container correctly at all times, and the screw-fitting action of the gripper can be performed more smoothly and reliably. It has excellent features such as an extremely simple structure because it uses a bottle.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of the present invention, FIG. 2 is a sectional view taken along the line 1--1 in FIG. 1, and FIG. 3 is a sectional view taken along the line ■--■ in FIG. 1. (1)... Rotating body, (51... Rotating shaft cylinder, (6)...
... Spring, (7) ... Cap holding part, α3 ... Lower annular friction plate, αa ... Gripper, (15) ...
Flange, housing η...upper annular friction plate, (1 ladle...knurling, knurling...bottle, Ql)...spring, (c)...
Cap contact plate. □□□・・・Bearing. Patent applicant: Toyo Food Machinery Co., Ltd. Agent Miku Yokota (7)

Claims (1)

[Claims] A cap holding part is provided in the center of a rotating body that rotates by an appropriate mechanism and moves up and down, and is urged downward by a spring, and a cap contact plate of the cap holding part is rotatably formed with a bearing, and the cap holding part is A cylindrical gripper having a knurling on the inner circumferential surface that engages with a knurling on the outer circumferential surface of the cap is disposed slightly above the periphery of the cap, and the cylindrical gripper
The friction transmitting member is clamped between friction transmitting members provided on a rotary body with a brim, and is urged downward by a spring screwed onto the rotary body, and the friction transmitting member is crimped with a bottle inserted into the rotary body. Synthetic resin cap fitting device.