JPH03186523A - Cover feeding device in inspection device for container cover - Google Patents

Abstract

PURPOSE:To prevent the time loss and a broken cover due to the bounding on drop, by forming a cover interference preventing groove on a screw roll and allowing the cover which is cover-cut to be guided by until reaching a feed line, in case of the cover feed with the inner surface of the cover facing upward. CONSTITUTION:Three screw rolls A, B, and C having each different groove shape revolve. Accordingly, the grooves a1, a2, b1, b2, c1, and c2 of the screw rolls A, B, and C separate the covers in the lower part of the superposed covers 1 one by one, and drop the covers one by one between the finger 8 of a turret 3 for the feed of covers which is positioned below and a pair of the inner and outer guide rails 4 and 5. In this case, the lower surfaces of the screw rolls A, B, and C prevent the upward springing-up of the dropped covers 1.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a lid supplying device for a container lid inspection device, etc., and more particularly to a lid supplying device for a device for inspecting the presence or absence of pinholes and dirt on the lid. It is related to.

[Conventional technology]

The inspection device for the rivet) lc and score line parts of the lid 1 of a can container, especially the scored lid 1 with tab LB, is used to check for pinholes that may cause leaks in the lid by leaking air pressure. In this inspection device, the lids 1 are sent to inspection heads provided at equal intervals around the outer circumference of a rotary table 2. This lid 1 is sent upside down with the inside surface facing up on the lid holder of the inspection head in order to inspect the dirt on the inside surface using a camera and to prevent wear of the protective layer on the inside surface.

Conventionally, the cover holder number position P3 on the outer periphery of the rotary table 2 is
is provided to rotate the outer circumference of the turret 3 for supplying the lid,
Guide rails 4.5 are provided horizontally along the outer circumference of the turret 3 to guide both sides of the lid.
5 is a separation supply position P of a lid where a large number of lids 1.1... are stacked. It is further extended toward the lid holder number position P3.

[Problem to be solved by the invention]

However, there is a drawback that a large number of stacked lids at the lid separation supply position jump up when falling onto the guide rail, causing the lids to be misaligned or damaged.

In particular, as the speed increases, the falling speed of the lid becomes faster, so this drawback becomes more significant, and there is a limit to how high the speed can be increased.

The present invention has a mechanism that takes out the lids stacked with the inner surface facing upward one by one from below and transfers them to the feed turret, and positions the lids while conveying them with the feed turret, and transfers the lids to the next process with high accuracy. The purpose of this is to ensure stable transportation without damaging the lid even during high-speed operation in the handing mechanism.

[Means to solve the problem]

The present invention has been made to solve the above-mentioned problems, and is provided at the lid holder number position P3 on the outer periphery of the rotary table 2 so as to rotate the outer periphery of the turret 3 for supplying lids. Guide rail 4 that guides both sides of the lid along
．． 5 is provided horizontally, and this guide rail 4.5 serves as a separate supply position P for a lid in which a large number of lids 1.1 are stacked.

The lid 1 is extended toward the lid holder number position P3.
At the separation supply position P, at the upper stacked lid 1a,
Three screw rolls A, B, and C that engage with the periphery of the lowermost lid are rotatably provided behind, inwardly, and outwardly thereof, and the upper edges of the screw rolls A, B, and C are provided to rotate. Grooves at, tl+, and C+ are provided for introducing the edge of the lid, and grooves a2 = b2-C are provided on the circumferential surface for guiding the edge of the lid downward.
2, the lower edges of the screw rolls B and C are provided with grooves for relief from the wall of the lid, and the lower surfaces of the screw rolls B and C have a small gap with the upper surface of the guide rail 4.5. This is a lid feeding device in a container lid inspection device, etc., in which the lid 1 is opposed to each other, thereby forming a holding surface of the lid 1.

[For production]

Screw roll A with three different groove shapes
, B, and C are rotated in the direction of the arrow in Fig. 1 to form the grooves a+, a2- bl, b2C1, and C of screw rolls A, B, and C.
Reference numeral 2 refers to a finger 8 of a turret 3 and a pair of inner and outer lids for taking out the stacked lids 1 one by one and transporting them downward, separating the bottom lids of the stacked lids 1 one by one, and feeding the lids underneath. Drop one sheet at a time between the guide rails 4.5. At this time, the lower surfaces of the screw rolls A, B, and C prevent the fallen lid 1 from jumping upward.

〔Example〕

1st. As shown in the second figure, a turret 3 for supplying a lid is provided at a position adjacent to the rotary table 2 so as to continuously rotate around a point 6, and arcuate inner and outer guide rails 4 are provided to guide both sides of the lid 1. 5 is fixed around a point 7 which is further outside the above point 6, and this guide rail 4.5 is located at a separate supply position P of the lid 1.

It is eccentrically moved closer to the center point 6 toward the lid holder number position P3.

Therefore, the separation supply position P. Now, lid 1 and turret 3
Although there is a gap of S++5a=2So between the finger 8 and the finger 8, there is no small gap S2 at the cover catch number position P3.

Separation supply position P of the lid. In the upper stack of lids 1a, at the rear, inwardly and outwardly there are three screw rolls AB, C that engage with the periphery of the lowermost lid 1 on the shaft 9.1.
0.11 so that they do not rotate in the same direction. Separators 12, 13, and 14 in the shape of notched discs are fixed to the upper surfaces of the screw rolls A, B, and C.

As shown in FIG. 4(a)(0), the upper edges of the screw rolls A, B, and C have grooves a1b for introducing the edge of the lid.
c, and grooves a2.c on its circumferential surface to guide the edge of the lid downward. b, , C2 are provided, and the lower edges of the screw rolls B and C are provided with grooves b3 and C3 for relief from the wall of the lid. As shown in Figure 4, the screw rolls B and C are
The bottom surface of the guide rail 4.5 is the top surface of the guide rail 4.5 and 0.311I
They are opposed to each other with a small gap of about I]+, thereby forming the holding surface of the lid 1.

Next, the operation of this device will be explained.

Screw roll A with three different groove shapes
, B, and C are rotated in the direction of the arrow in Fig. 1 to rotate the grooves of screw rolls A, B, and C at, a2, b, b2c, , c2.
The operator takes out the stacked lids 1 one by one and carries them downward, separates the lower lids of the stacked lids 1 one by one, and uses the fingers 8 of the turret 3 located below for transporting the lids and a pair of inner and outer lids. Drop one sheet at a time between guide rails 4.5.

At this time, the lower surfaces of the screw rolls A, B, and C prevent the fallen lid 1 from jumping upward. Also,
In grooves ba and C3 of screw rolls B and C, lid 1 resting on guide rail 4.5 is at position P. This prevents the inner surface of the lid from interfering with the screw rolls B and C when moving from to Pl. The clearance between the lid 1 and the turret finger 8 at the lid position Po is S. +S, the turret 3 rotates and moves the lid 1 to positions p, , p2. As it progresses to p3, the clearance eventually becomes small S2. therefore,
The lid 1 is accurately regulated at the position P3 and is reliably supplied to the rotary table 2.

〔Effect of the invention〕

According to the present invention, the following effects can be obtained.

■ By attaching a lid interference prevention groove to the screw roll, when the lid is fed upward from the inside of the lid, the cut lid can be guided by the screw roll until it reaches the feed line. This prevents time loss and damage to the lid due to bouncing when dropped, which would otherwise occur if the lid was not lowered below the thickness, and enabled high-speed operation without compromising quality.

■, Lid position P. By increasing the clearance at E due to eccentricity E, the stability of the lid increases when operating at high speed, and timing adjustment becomes easier.

■, Lid position P. Since the clearance between the finger and the lid continuously narrows from Sl to 32 during the movement from to P3, the lid can be fed smoothly.

■The lid traveling curve of the inner and outer guide rails is made of a single centric circle, making it inexpensive to manufacture.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is an enlarged view of the main part thereof, and Fig. 4 (A) is a portion corresponding to line I-I in Fig. 3. FIG. 5(b) is a perspective view of each screw roll, and FIGS. 5(a), 5(b), and 5(c) are developed views of the circumferential surface of each screw roll. 1.18...Lid, 2...Rotary table, P3...Lid holder number position, 3...Turret, 4.5...・Guide rail, Po...
...Separation supply position, A, B, C, old...Screw roll, at, b, , c, ...Introduction groove,
a2゜b2=c2...Guide groove, b3. c,
・・・・・・Groove for wall relief.

Claims (2)

[Claims] (1) A lid receiving position on the outer periphery of the rotary table is provided so that the outer periphery of a turret for supplying the lid can be rotated, and guide rails are provided horizontally along the outer periphery of this turret to guide both sides of the lid, and this guide rail extends from the separation supply position of the stacked lids toward the above-mentioned lid receiving position, and in the gripped lid on the separation supply position of the lids, the lowest part is located behind, inwardly, and outwardly. Three screw rolls that engage with the periphery of the lid are rotatably provided, and the upper edge of the screw roll is provided with a groove for introducing the lid rim, and the peripheral surface thereof is provided with a groove for introducing the lid rim downward. A groove is provided to guide the screw roll, and a groove is provided at the lower edge of the screw roll for relief from the wall of the lid.
A lid supply device for a container lid inspection device, etc., wherein the lower surface of the screw roll is opposed to the upper surface of the guide rail with a small gap, thereby forming a lid holding surface. (2) The lid feeding device for a container lid inspection device or the like according to claim 1, wherein the guide rail is eccentrically arranged so as to approach a central point from the lid separation supply position toward the lid receiving position.