JPH0515372B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a belt-shaped film forming apparatus for processing blister film for food and drug packaging, and embossed carrier tape for storing electronic components that require high precision. be.

BACKGROUND TECHNOLOGY As shown in FIG. 4, in a conventional general film forming apparatus for forming a strip film, a film 1 wound into a roll is heated by a hot plate 3 having a built-in heater 2. The film 1 supplied to the section 4 and heated is sent to an embossing section 7 consisting of a die plate 5 and a punch 6 to form a continuous embossing 8 on the film 1. In this way, the heating section 4 and the embossing section 7 of the film 1 were performed at different locations, so the temperature of the film decreased due to heat radiation while the heated film 1 was put into the embossing section 7. It is unavoidable to do so. Therefore, the heating temperature of the film 1 was set in anticipation of a decrease in the film temperature so that the film temperature would be at an appropriate temperature during embossing.

Problems to be Solved by the Invention However, embossing using such a forming device is greatly affected by temperature and the time from heating the film to starting embossing, making it difficult to control the temperature of the film and making the forming process difficult. Unable to stabilize quality. Furthermore, in an apparatus that continuously forms the strip-shaped film 1, if the apparatus stops due to a malfunction during production, the following problem will occur. That is, the feeding of the film 1 is stopped and the film 1 in the heating process is overheated and melted, and the film 1 after heating is cooled and solidified without being formed in the embossing section 7, making it impossible to form it. When continuously forming the film 1 using this band-shaped film forming apparatus, there was a problem in that once forming started, the processing apparatus could not be stopped even once until the original fabric of the film 1 was used.
Because of these problems, the film 1 forming apparatus was limited to independent operation, and could not be operated in-line with other production equipment.

Accordingly, the present invention aims to stabilize the heating temperature of the film and the film temperature during forming processing in a belt-shaped film forming apparatus, and to prevent deterioration of the forming quality even if the forming apparatus is operated intermittently.

Means for Solving the Problems The technical means of the present invention for solving the above problems is to attach a heating plate having a convex portion to a die of a mold so that film heating and embossing can be performed in the same mold. The structure is such that it can be slid up and down in the hole.

Effect The effect of this technical means is as follows.
That is, the film is heated until it reaches an appropriate temperature on the surface of the convex part of the heating plate that has ascended through the die hole of the mold.
Since the embossed pocket is formed immediately after heating is completed, the temperature of the film is stabilized, and high-quality embossed film can be processed without any problems even with intermittent operation of the processing equipment.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings.

In FIG. 1, a heating plate 10 having an upwardly projecting portion 9 is installed so as to be able to slide up and down within a die hole 11 for forming an embossed pocket, and its up and down movement is performed by a cylinder 12. The heating plate 10 is controlled to a constant temperature by a heater 13 and a thermocouple 14.
Further, the punch 15 for forming the embossed pocket, the punch 18 for pitch feeding the die plate 16 and the strip film 17 are provided with a punch holder 19,
die holder 20, stripper plate 21,
The driving device 22, the guide bush 23, the guide pin 24, the stripper hanging bolt 25, the spring 26, and the like are assembled using a known press mold structure.

Next, a second step of embossing the film 17 using the belt-shaped film forming apparatus having the above configuration is performed.
This will be explained using Figures a to d. When the punch holder 19 is lowered from the state shown in FIG. They are sandwiched together, resulting in the state shown in Figure 2b.
In this state, the downward movement of the punch holder 19 is temporarily stopped, and the heating plate 10 is raised as shown in FIG. After heating is completed, the punch holder 1 is lowered at the same time as the heating plate 10 is lowered.
9, the film 17 is formed into an embossed pocket 28 as shown in FIG. 3 by the punch 15 and die hole 11, as shown in FIG.
In addition, the punching punch 18 and the punching die hole 27 perform punching of the film 17 with a hole force for pitch feeding. After the film 17 is cooled and solidified in the state shown in FIG. 2D, the punch holder 19 is raised to the state shown in FIG.

Effects of the Invention As described above, according to the belt-shaped film forming apparatus of the present invention, the heating of the film is carried out by the contact of the convex surface of the heating plate that slides through the die hole of the forming mold, so that the film can be heated to a minimum during embossing. Since this is done only in the necessary areas, the influence of sagging caused by heating and shrinking the film can be minimized. In addition, after heating, the punch is immediately lowered to form the embossed pocket without transporting the film.
The film will be molded before the temperature drops. That is, since the film temperature during molding can be accurately controlled, the quality of molding is stable.

Furthermore, even if the processing equipment stops during the continuous production of film strips, it can be restarted at any time without any problem if it is left on standby in the state shown in Figure 2 a, improving the workability of the forming process. With,
This has the advantage that it becomes possible to connect the belt-shaped film forming apparatus to other manufacturing equipment, ie, so-called in-line operation.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view showing an embossed film processing device according to an embodiment of the present invention, FIG. 2 is a diagram showing the order of a forming method using the processing device of the present invention, and FIG.
The figure is a perspective view of an embossed film processed by the processing apparatus of the present invention, and FIG. 4 is a diagram showing a conventional embossed film processing apparatus. 1...Film, 2...Heater, 3...Hot plate,
4... Heating section, 5... Die plate, 6... Punch, 7... Embossing section, 8... Embossing, 9
... Heating plate convex portion, 10 ... Heating plate, 11 ... Die hole, 12 ... Cylinder, 13 ... Heater, 14
... thermocouple, 15 ... punch, 16 ... die plate, 17 ... film, 18 ... hole punch, 19 ... punch holder, 20 ... die holder, 21 ... stripper plate, 22 ……
Drive equipment, 23... Guide bush, 24... Guide pin, 25... Stripper hanging bolt, 2
6...Spring, 27...Drilling die hole.

Claims (1)

[Claims] 1 Consists of a lower mold having a molding recess and an upper mold that can be inserted into the molding recess, the molding recess comprising a die holder, a die plate, and a heating plate that can slide on the die plate, and the upper mold slides around a guide pin as an axis. It consists of a movable punch holder, a punch having a convex shape, and a stripper plate.The convex surface of the heating plate is brought into contact with the film, and after heating, the punch is pushed into the die hole of the die plate to remove the film. A belt-shaped film forming device characterized by forming.