JPS6181990A - Continuous molding capping method for canning 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 (Industrial Application Field) The present invention provides a method for continuously forming and capping canned can caps, in which the cap body for canned cans, Deltop cans, etc. is continuously formed and capped in the same process. It is related to.

(Prior art) Conventionally, in order to apply caps to cans, pull-top cans, etc., molding the cap and putting the lid on the can were performed in separate work processes, resulting in very poor work efficiency and equipment problems. However, since they were each constructed separately, they had the unavoidable disadvantage of being large and expensive.

(Purpose) The present invention enables molding of a cap body and closing of a can body to be carried out continuously in the same process, significantly improving work efficiency, and at the same time, integrating the device, making it compact, and supplying the product at low cost. This is what I did to get it.

(Structure) In order to achieve all of the above objects, the present invention transports a belt-shaped glass film to a predetermined pinch, and uses a film forming means to sequentially form a recess of a predetermined shape to form a recess for a cap.
The cap is molded with the concave portion facing upward, and then punched out using trimming means around the cap concave portion to form individual caps.The caps are transported in a substantially horizontal state to a predetermined pinch by a conveyor with the concave portion facing upward. At the same time, canned cans are tilted downward from above the conveyor in the same direction as the traveling direction of the conveyor. , the cap is moved forward in synchronization with the conveyance of the can to engage the bottom tip of the can and the top inner edge of the cap, and then the can bottom and the cap are pushed together by pressing from above the can. The feature is that they fit together. This will be explained in detail below based on examples.

FIGS. 1 to 6 show an example of an apparatus for carrying out the present invention, in which the soil is a strip-shaped film transfer apparatus. The above-mentioned belt-shaped film transfer device is well known and includes two endless chains 73.3' installed on the machine frame 2 and a large number of film clamping claws (not shown) attached to the endless chains 3.3'. The endless chains 3, 3' are stretched around a sprocket 4 so as to be moved at predetermined pitches. This is a well-known vertically movable forming chamber disposed at a predetermined position on the strip film transfer device, with the upper chamber 5a being fixed and the movable lower chamber 5b containing a film made of a hot plate. It is equipped with a preheating device 5C and a pressure vacuum forming mold 5d.

This is a well-known trimming chamber disposed at a predetermined position of the strip film transfer device 1, with a female punching die 6b inside the movable lower chamber 6a, and a fixed punching die inside the upper chamber 6C. It is equipped with a male type 6d.

A cooling chamber is provided at a predetermined position on the strip film transfer device, and the fixed upper chamber 7a is provided with a hole needle 7bi, and a movable lower chamber is provided.
70 is equipped with a cooling element 7di such as cooling water or gas.

Note that the perforation and cooling chamber L may not be provided as necessary. A cap body conveyor/hair is provided on the machine frame 2 below the trimming chamber, and a feed pawl 8ai that pushes the punched cap body ai in the trimming chamber is attached at every predetermined pinch with an endless chain. 8b and a driving sprocket 8c for the endless chain 8b. The canned can discharge gutter is disposed in a forward-slanted manner at the upper part of the discharge end side of the canog body transport conveyor. The can stop and release device is disposed at the tip of the canned can delivery gutter, and as shown in Figure 1.3, the first can be stopped and released by the first stone. 10a and the next canned food can b
When the first stopper 10a stops and releases the first can b1, the second stopper 10b stops and releases the next can b2. When the first stopper 10a stops the first canned food, the second stopper 10a stops the first canned food.
10b releases the stop of the next canned can b2, and the canned cans are sequentially carried out starting from the first one. In addition, the first and second stops for the canned can stop and release device are
The operation timing of '-10a and 10b is synchronized with the conveyance timing of the cap body a. Note that the first and second stuts・”-10a
, 10b are driven by a suitable drive mechanism (not shown), such as a well-known solenoid valve, other electrically actuated drive mechanism, or other mechanical drive mechanism. The direction of movement is also shown in Figures 6(a) and (b).
As shown, it may be in any direction, such as vertical direction, horizontal direction, or horizontal direction. The container is a container for transporting canned goods, and is used to transport all canned goods to the canned container transporter. The cap member is a cap pressing member such as a spin roller, which is disposed at the upper part of the outlet side of the canned can delivery gutter, and its mounting height can be adjusted as appropriate depending on the size of the canned can. Bile is excreted 16 H Chiyaso 7° Tree a
A winding device for completely winding the belt-like film F' with a fixed diameter, E is a belt-like film, and C is a concave part for a cap formed in plural parallel shapes (in this embodiment, four rows in the horizontal direction) on the belt-like film E. be.

The strip film L, which is intermittently transferred at a predetermined pitch on the strip film transfer device, is once softened by heat in the film preheating device 5c and then molded into a plurality of parallel cap concave shapes by the pressure-air vacuum mold 5d. Part C
Next, a small hole is formed in the concave portion C for the cap in the cooling chamber L, and the cooling element 7 is formed.
The concave portion C for the cap is cooled in step d, and then cut out by the punching dies 6b and 6d in the next trimming machine/pa.
is punched out.

The punched cap body a is then lowered from the punching female die 6b onto the lower character f-conveying container, and is conveyed toward the discharge side every predetermined pinch by the feed pawl 8a. . In such a case, the first of many canned cans waiting in a forward tilted state on the canned can unloading gutter which is arranged at the top of the unloading end side of the cap body conveyor/bearer. The first canned can is stopped by the canned can stop and release device 10 in synchronization with the head-feeding timing of the cap body conveyance conovair. By the operation of the second strokes -10a and 10b, the bottom end b' is held on the inside edge a' of the cap body which slides on the canned can delivery gutter and is located below, as shown in the third figure. ,
The portion of the can that moves together with the cap body a is pressed from above by a cap body pressing member, and the entire bottom circumference of the can can is fitted into the cap body a, and the can is conveyed to a discharge conveyor as shown in the first figure. It is something that will be done. The band-shaped film F' after being punched out of the cap body a is wound up by a winding device when gripping claws (not shown) gripping both side edges are released.

(Effects) According to the present invention, the molding of the cap body and the closing of the can body can be carried out continuously in an integrated process, and the work efficiency can be significantly improved. Since the canned can is fitted to the cap body, the device can be made simpler and smaller, and the cost can be lowered compared to the method in which the cap body is fitted to the whole can. It has a number of advantages, such as being able to reduce the installation surface, dipping area, and working area to a large extent, and being able to be easily implemented in a small area.

[Brief explanation of drawings]

Fig. 1 is an overall front view of the present invention, Fig. 2 is a plan view of the same, and Fig. 3 is a front view of the present invention.
The figure is a partially enlarged view showing the state in which the cap body and the canned can are engaged, Figure 4 is a perspective view of the canned can delivery gutter and the canned can carry-in conveyor section, and Figure 5 is the canned can stop and release device section. 6(a) and 6(b) are front views showing examples of the operation of the can stop and release device. Engineering: Strip film transfer device, 2: Machine frame, 3.3'
・・・2/dress chain, 4...sprocket, dan...
・Forming chatbar - 1st time ・Trimming chatbar, drilling one hole, cooling chatbar - 1st time...Cap body conveyor, 1st...Canned can delivery (through, aim...Canned can stop, release device, 10 a... 1st stock move, 10b... 2nd stock, mother - 1dan... Canned goods brought in Conobear, 12.
・Cap body pressing member, vertical...discharge chute, 晟 discharge conveyor, guide roller, skill...winding device, work...belt film, a...cap body, b...
Canned can, C... Concave part for cap 0 Patent applicant: Taiso Kikai Kogyo Co., Ltd. Nippon Suisan Co., Ltd.

Claims (1)

[Claims] By means of a film forming means that transports a belt-shaped plastic film at a predetermined pitch and sequentially forms recesses of a predetermined shape,
A concave portion for a cap is formed with the concave portion facing upward, and then the circumference of the concave portion for the cap is punched out using a trimming means to form individual caps, and the caps are placed approximately horizontally at a predetermined pitch by a conveyor with the concave portion facing upward. While transporting the cans in the same state, the cans are tilted downward from above the transport conveyor in the same direction as the traveling direction of the transport conveyor.
The cap is moved forward in synchronization with the conveyance of the can to engage the bottom tip of the can with the inner edge of the tip of the cap, and then the can bottom and the cap are fitted by pressing from above the can. A method for continuously molding and closing canned can caps, which is characterized in that they fit together.