JPH0545468Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a thermocompression bonding machine for thermocompression bonding a heat-adhesive film provided on a laminate film, a postcard, or the like.

[Conventional technology]

Conventionally, for example, in a crimping machine for laminating a laminate film that wraps a menu, when the object to be processed is inserted into the entrance at one end of the case, a pair of upper and lower heaters installed in the case is inserted between the built-in heating rollers, and then between the pair of upper and lower crimping rollers. The laminate film is thermocompressed and then discharged from the other end of the case.

[Problem that the invention aims to solve]

Since both ends of the heating roller are supported on both side plates of the case, the heat at both ends of the heating roller is dissipated through the side plates, so there is a large temperature difference between the middle part and the end part of the heating roller (heating roller (the temperature at the edge decreases) occurs.

For this reason, when processing a large workpiece whose side edge reaches the end of the heating roller, there is a problem in that the portion of the workpiece that passes through the end of the heating roller is not properly thermocompressed.

Therefore, the object of this invention is to provide a thermocompression bonding machine that can prevent the temperature drop at the end of the heating roller and perform thermocompression bonding favorably.

[Means to solve the problem]

In order to achieve the above object, this invention consists of a case having an inlet at one end and an outlet at the other end, and a pair of upper and lower units disposed on the inlet side of the case.
In a thermocompression bonding machine consisting of a heating roller having a drive function, and a compression roller disposed in front of the heating roller and having an upper and lower pair and having a drive function, the end of the heating roller and It is constructed by providing an auxiliary heater to eliminate the temperature difference with the middle part.

[Effect]

When a workpiece consisting of a menu and a laminate film surrounding the menu is inserted into the inlet, the laminate film is thermocompressed between heated rollers, then between pressure rollers, and then discharged from the outlet.

In addition, the heating roller is heated by the auxiliary heater to eliminate the temperature difference between the middle portion and the end portion, which occurs because the heating roller radiates heat through the side plate of the case.

〔Example〕

Embodiments of the thermocompression bonding machine according to this invention will be described below with reference to the accompanying drawings.

In the figure, A is a thermocompression bonding machine.

As shown in Figs. 1 and 2, the thermocompression bonding machine A has a case 3 having an inlet 1 at one end and an outlet 2 at the other end, and a pair of upper and lower parts disposed on the inlet side of the case 3. It consists of a heating roller 4 having a drive function and a pressure roller 5 disposed in front of the heating roller 4 and having a drive function.

As shown in FIG. 2, the heating roller 4 is composed of a metal cylinder 6, a rubber layer 7 provided on the outer periphery of the cylinder 6, and a glass heater 8 inserted into the cylinder 6. However, heating rollers other than those described above may also be used.

The heating roller 4 and the pressure roller 5 are
In the illustrated example, two sets are arranged at the front and rear, but the number is not limited.

For example, two upper and lower laminate films 21, 21 shown in FIG.
Printed paper 22 such as a menu interposed between 1 and 21
When the laminated product 23 consisting of is placed and fed into the case 3 from the inlet 1, it first passes between the upper and lower heating rollers 4 and is thermally pressed, and then passes between the front pressure roller 5 and is pressed.

Then, it is discharged from the outlet 2.

Further, inside the case 3, there is an auxiliary heater 9 that eliminates the temperature difference between the middle part and the end part of the heating roller 4, which occurs because the heat is radiated from both ends of the heating roller 4 through the side plates of the case 3. It is provided.

Heating roller 4 depending on the arrangement of auxiliary heater 9
Since there is no temperature difference over the entire length, even if the side edges of the laminate films 21, 21 reach near the ends of the heating roller 4, each part can be bonded uniformly by thermocompression.

The auxiliary heater 9 that uniformly heats the entire length of the heating roller 4 is arranged along the entire length of the lower heating roller 4, with a rough winding pitch at the middle part of the heating wire and a dense winding pitch at both ends. In some cases, auxiliary heaters are provided only at both ends of the heating roller 4.

Note that the lower heating roller 4 and the pressure roller 5
The bearings 10 of the front and rear upper heating rollers 4 and the front pressure roller 5 are supported in fixed positions.
slides vertically using the shaft member 11 as a guide, and is pushed back downward by the spring 12.

In the figure, 13 is a drive device for the lower heating roller 4 and pressure roller 5, and 14 is a cover provided above the heating roller 4 to stop upward heat radiation.

〔effect〕

As described above, according to the thermocompression bonding machine according to this invention, the uneven temperature of the entire length of the heating roller caused by the heat dissipation at both ends of the heating roller through the side plate of the case is made uniform by the auxiliary heater, so that heating is possible. Even if the side edge of the object to be processed reaches the end of the roller, it can be evenly bonded by heat and pressure.

[Brief explanation of the drawing]

FIG. 1 is a side view of a thermocompression bonding machine according to this invention, FIG. 2 is a longitudinal side view of the same, and FIG. 3 is a partially cutaway perspective view of a workpiece. 1...Entrance, 2...Exit, 3...Case, 4...
... Heating roller, 5 ... Pressure roller, 9 ... Auxiliary heater.

Claims (1)

[Scope of utility model registration request] A case having an inlet at one end and an outlet at the other end, a pair of upper and lower heating rollers disposed on the inlet side of the case and having a drive function, and disposed in front of the heating roller,
A thermocompression bonding machine consisting of an upper and lower pair and a compression roller having a drive function, characterized in that an auxiliary heater is provided in the case to eliminate the temperature difference between the ends and the middle of the heating roller. Heat compression bonding machine.