JPH064314Y2 - Bottle mouth inspection head - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is an improvement of a bottle mouth inspection head for inspecting the top surface smoothness at the mouth of a molded glass bottle body and the inner diameter and outer diameter of the bottle mouth. Regarding

(Prior Art) As a device for inspecting the inner diameter and outer diameter of the mouth of a glass bottle body molded by a bottle making machine and the top surface smoothness of the mouth, for example, FIG. 3 of Japanese Utility Model Laid-Open No. 62-53338. The inspection head shown in FIG. With this inspection head, a cup-shaped outer diameter gauge is brought into contact with the outer periphery of the bottle mouth, a rod-shaped inner diameter gauge is inserted inside the bottle mouth, and a pressing member is crimped to the top of the mouth. At the same time, air is pressure-fed into the bottle body from the mouth inner diameter gauge to check the shape of each part of the bottle body according to the presence or absence of air leakage. However, in this conventional device, especially for the inner diameter of the bottle mouth portion that is thinner than the specified (hole), it is possible to check because the mouth inner diameter gauge cannot be inserted and air leakage occurs, but the inner diameter is There is a problem that it is not possible to check with air if something thicker than the regulation (large hole) can be inserted into the bottle. Therefore, traditionally,
A special inspection mechanism for checking this hole size, such as a limit switch for detecting the insertion depth of the inner diameter gauge, is required.

(Problems to be solved by the invention) However, it is not economical to separately add a special inspection mechanism or electric equipment for the inspection of only the hole of the mouth, and the structure becomes complicated. It is not preferable because it does not get Therefore, the present invention proposes a structure of an inspection head capable of inspecting all of the mouth including the hole size by the same air check as other mouth inspections.

(Means for Solving the Problem) That is, the present invention is a head mounted on the mouth of a bottle body to be inspected for inspecting the top surface smoothness, outer diameter and inner diameter of the bottle mouth, which comprises: A chamber provided in the head main body, having an air inlet connected to an air supply source in the front part and an air outlet connected to the air pressure detection part in the rear part, and an elastic chamber in the chamber. A seal block which is always urged and inserted forward by a member and which is arranged so as to close the air inlet at the forward position, and which is connected so as to penetrate the seal block, and the seal block connecting portion An operating shaft body having an air inflow passage on the front side thereof, and having an air through passage formed in the rear portion communicating with the air inflow passage so as to penetrate in the axial direction so as to communicate with the chamber at the rear portion of the seal block, Previous A top surface pressing member provided on the front part of the head main body and having a smooth surface that comes into contact with the top surface of the bottle body opening portion, and a predetermined outside surface of the top surface holding member that is wrapped around the bottle body opening portion. An outer diameter gauge having an inner diameter outer diameter inspection section and an exhaust hole provided at an interface position with a smooth surface when the top surface pressing member comes into contact with the bottle body, and the operation inside the top surface pressing member. Consists of a small diameter part with a specified minimum outside diameter at the rear part of the tip small diameter part that is connected to the shaft body and sinks into the mouth of the bottle body, and a specified maximum outside diameter formed through a step part at the rear part. It has a large-diameter portion and an inner diameter gauge having an inner air passage communicating with the air passage of the actuating shaft and penetrating inside, and having an outer air groove formed on the outer surface. It is characterized by

(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings. Fig. 1 is a vertical sectional view of a bottle mouth inspection head showing an embodiment of the present invention, and Fig. 2 is an inspection head of Fig. 1. FIG. 3 is an enlarged cross-sectional view showing a state where the inspection head is attached to the bottle mouth portion, FIG. 3 is a partially enlarged view of the mouth inner diameter gauge of the inspection head, and FIG. 4 is a vertical sectional view showing a state where the inspection head is attached to the bottle having a small hole. FIG. 5 and FIG. 5 are longitudinal sectional views showing a state in which the bottle is similarly attached to a hole-sized bottle.

As shown in FIG. 1, the inspection head H is connected to the tip of the movable arm 11, descends from above the bottle body B to be inspected, and is attached to the bottle mouth to inject air into the bottle body B. Then, the air pressure is checked to inspect the top surface smoothness, the outer diameter, and the inner diameter of the bottle mouth.

A chamber 20 is provided in an upper portion inside the head body 10.
The chamber 20 has an air inlet 21 connected to the air supply source A at the front (lower part) and an air outlet 23 connected to the air pressure detector G at the rear (upper).

A cylindrical seal block 30 is provided in the chamber 20.
Is always biased forward by the elastic member 35 and inserted. The seal block 30 opens the air inlet 21 when retracted against the elasticity of the elastic member 35 such as a coil spring, and the air inlet 21 at the forward position advanced by the urging force of the elastic member 35. Is arranged to close.

An operating shaft 40 is connected to the seal block 30 in a penetrating manner. In the embodiment, the nut 31 is screwed onto the rear end threaded portion 49 of the operating shaft body 40 protruding to the rear part of the seal block 30, and the operating shaft body 40 is joined to the seal block 30.

The operating shaft body 40 has an air inflow passage 42 on the front side of the seal block coupling portion 41. Therefore, the air inflow path 42 is provided with the air inlet 21 in an open state.
It becomes possible to communicate with.

Further, the air shaft 4 is penetrated through the actuating shaft 40 in the axial direction.
3 is formed, and this air through passage 43 communicates with the air inflow passage 42 and also communicates with the chamber 20 at the rear portion of the seal block 30 at the rear portion.

Next, a top surface pressing member 50 having a smooth surface 51 that abuts on the top surface of the bottle mouth portion is provided in the front portion of the head body 10 so as to surround the actuating shaft body 40. Reference numeral 52 in the figure is an O-ring for air sealing.

Further, an outer diameter gauge 60 having an outer diameter inspection portion 61 having a predetermined inner diameter, which is wrapped around the outer surface of the bottle mouth portion, is formed on the outer side of the top surface pressing member 50. The outer diameter gauge 60 has a smooth surface 51 when the top pressing member 50 is in contact with the bottle body.
Exhaust holes 63 having a diameter of about 3 mm are provided at four positions in a cross shape at a boundary position between and.

Further, inside the top surface pressing member 50, a mouth inner diameter gauge 70 is provided which is connected to the operating shaft body 40. As shown in FIG. 3, the mouth inner diameter gauge 70 is a small diameter portion 72 having a tip minimum diameter portion 71 which is recessed in the mouth portion of the bottle body B and a predetermined minimum outer diameter a formed through a step portion 77 at the rear portion thereof. And a large-diameter portion 74 having a predetermined maximum outer diameter b formed at the rear portion thereof through a step 73. Note that the predetermined minimum outer diameter a is the allowable minimum value of the inner diameter of the bottle mouth, the predetermined maximum outer diameter b is the maximum allowable value of the inner diameter of the bottle mouth, and the maximum outer diameter b
And the minimum outer diameter a are set to be within the allowable range of the inner diameter of the bottle mouth. Further, at the stepped portion 73 of the large diameter portion 74 and the small diameter portion 72, the seal block 30 is retracted and the air inlet 2
When 1 is opened, it is formed so as to be at the same height position as the smooth surface 51 of the top pressing member 50.

An inner air passage 75 communicating with the air passage 43 of the actuating shaft 40 is formed through the inside of the mouth inner diameter gauge 70, and an outer air groove 76 is formed on the outer surface of the exhaust hole 63. Corresponding to the position, four cross-shaped portions are formed.

(Operation) Next, the inspection head of the present invention will be described in more detail together with its operation.

First, as shown in FIG. 1, when the head main body 10 is lowered to the mouth of the bottle body B to be inspected, as shown in FIG. 2, a bottle body having a bottle mouth inner diameter and an outer diameter within a predetermined allowable range, That is, in a good product, the mouth portion is located between the outer diameter inspection portion 61 of the mouth outer diameter gauge 60 and the mouth inner diameter gauge 70, and the top surface of the bottle mouth portion is the smooth surface 51 of the top holding member 50 and the mouth inner diameter. It contacts the stepped portion 73 of the gauge 70.

Here, when the air is pumped from the air source A, the seal block 30 is in the retracted position as can be understood from FIG. 1, so the air inlet 21 is opened and the air flows into the air inflow path 42.
Bottle body B is passed through air through passage 43 and inner air passage 75.
Inside, and on the other hand, through the chamber 20 the air outlet 23
Leading to.

At this time, if the top surface of the bottle mouth is smooth, the bottle mouth is closed by the smooth surface 51 of the top surface pressing member 50 and the stepped portion 73 of the mouth inner diameter gauge 70, so that air is filled and the pressure at the air outlet 23 is reduced. The pressure gauge of the air detector G rises and shows a predetermined pressure value.

By the way, if the top surface of the mouth of the bottle is not smooth here, as shown in FIG.
Since there is a gap D between the air and the
Through the outer air groove 76 and the gap D of the air exhaust hole 6
3, the pressure at the delivery port 23, that is, the pressure value of the pressure gauge of the air detection unit G decreases, and it is displayed that the product is defective.

Next, when the inner diameter of the bottle mouth portion is a hole smaller than the allowable minimum value a, as shown in FIG. 4, the bottle mouth comes into contact with the tip small diameter portion 71 of the mouth inner diameter gauge, Cannot contact the smooth surface 51 of the top pressing member 50. Therefore, the air pressure-fed in this state is discharged to the air exhaust hole 63 through the outer air groove 76, the gap S between the top surface and the smooth surface 51, and the air pressure at the air outlet 23 decreases, and the air detector A decrease in the pressure value of the G pressure gauge indicates that the product is defective.

On the other hand, when the inner diameter of the bottle mouth portion is larger than the allowable maximum value b or b, the smooth surface 51 of the top pressing member 50 abuts the bottle mouth, as shown in FIG. Is sealed, but since the inner diameter of the bottle mouth is larger than b, the gauge 70 of the inner diameter of the mouth is recessed into the bottle by the urging force of the elastic member 35, and the seal block 30 advances to close the air inlet 21. . Therefore, in this case, the pressure at the air outlet 23 becomes zero, which indicates that the pressure gauge of the air detection unit G is defective.

Regarding the outer diameter of the mouth, it is inspected by the outer diameter gauge 60, and if it is larger than the inner diameter of the gauge, the head itself cannot be attached to the bottle body, and therefore the air pressure never shows a predetermined numerical value. Absent.

(Effect) As shown and described above, according to the bottle mouth inspection head according to the present invention, the inspection head main body is attached to the mouth portion of the bottle body to be inspected, and air is fed, and the pressure of this air is adjusted to the air pressure. By checking at the delivery port, it was possible to provide a very useful bottle mouth inspection head capable of inspecting the top surface smoothness, outer diameter and inner diameter of the bottle mouth at once. As described above, according to the present invention, the necessary check can be performed at the mouth of the bottle at once with a simple mechanism, which is economical in terms of cost and can significantly improve work efficiency. Is.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a bottle mouth inspection head showing an embodiment of the present invention, FIG. 2 is an enlarged sectional view showing a state in which the inspection head of FIG. 1 is attached to the bottle mouth portion, and FIG. Partially enlarged view of the mouth inner diameter gauge of the inspection head, FIG. 4 is a vertical cross-sectional view showing a state in which the inspection head is attached to a bottle with a small hole, and FIG. 5 shows a state in which it is attached to a bottle with a large hole. FIG. 10 ... Head main body, 20 ... Chamber, 21 ... Air inlet, 23 ... Air outlet, 30 ... Seal block, 35 ... Resilient member, 40 ... Operating shaft, 42 ... Air inflow Road, 43 ... Air passage, 50 ... Top pressing member, 51 ... Smooth surface, 60 ... Outer diameter gauge, 63 ...
Exhaust hole, 70 ... Port inner diameter gauge, 72 ... Small diameter part, 73
…… Step, 74 …… Large diameter part, 75 …… Inner air flow path, 7
6 ... Outside air groove, H ... Bottle mouth inspection head, B ...
Inspected bottle body.

Claims (1)

[Scope of utility model registration request] 1. A head for mounting on the mouth of a bottle body (B) to be inspected and inspecting the top surface smoothness, outer diameter and inner diameter of the bottle mouth, which comprises a head body (10) and the inside of the head body. A chamber provided in the front with an air inlet (21) connected to the air supply source (A) and an air outlet (23) connected to the air pressure detector (G) in the rear (20), a seal block (30) which is always inserted in the chamber by a resilient member (35) while being biased forward, and which is arranged to close the air inlet at the forward position, It is connected so as to penetrate the seal block,
An air inflow path (42) is provided on the front side of the seal block coupling part (41), and is formed so as to communicate with the air inflow path and penetrate in the axial direction so as to communicate with the chamber at the rear part of the seal block. Actuating shaft (40) having a closed air passage (43)
A top surface pressing member (50) provided on the front part of the head main body and having a smooth surface (51) that comes into contact with the top surface of the bottle body opening, and a bottle body opening provided outside the top surface pressing member. It has an outer diameter inspection part (61) with a predetermined inner diameter that is wrapped around the outside of the part, and an exhaust hole (63) is provided at the boundary position with the smooth surface when the top surface pressing member contacts the bottle body. Mouth diameter gauge (60) and a predetermined minimum outer diameter (a) at the rear part of the tip small diameter part (71) that is provided inside the top surface pressing member and connected to the operating shaft body and is immersed in the mouth part of the bottle body. ) And a large diameter portion (74) having a predetermined maximum outer diameter (b) formed through a stepped portion (73) at the rear portion of the working shaft body. A bottle characterized by comprising an inner diameter gauge (70) having an inner air flow passage (75) communicating therewith and penetratingly formed therein, and having an outer air groove (76) formed on the outer surface thereof. Oral inspection head.