JPH0576731U - Laminating machine - Google Patents

Abstract

(57) [Summary] [Purpose] This invention is intended to prevent curling of the laminate due to shrinkage of the application sheet and to automatically remove dust and dirt prior to lamination. is there. [Configuration] A laminating machine that passes a base sheet and an application sheet between a pair of pressing rollers to laminate the application sheet on the surface of the base sheet, and a pair of pulling the application sheet from a reel around which the application sheet is wound. A pull-out roller is provided, and the pull-out roller and the pressing roller are connected via a transmission mechanism, and the rotation speed of the pull-out roller is set to be slightly higher than the rotation speed of the pressure roller to relax the application sheet between both rollers. The feature is that the extension of the application sheet caused by the withdrawal is removed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a laminating machine for laminating an application sheet such as a transparent film on the surface of a printed matter or the like.

[0002]

[Prior Art]

 Conventionally, it is known to laminate a transparent film such as vinyl chloride on the surface of a printed matter in order to protect the printed surface. An apparatus for laminating a film on the surface of such a printed matter is to pull out the application sheet from a reel around which a transparent film sheet coated with an adhesive called an application sheet is wound, and pass the printed matter between the pressure rollers together with the printed matter. The application sheet is laminated on the surface of the printed matter. Since the application sheet is generally flexible and the adhesive strength of the adhesive is relatively large, the dimensions of the application sheet are slightly stretched when the reel is pulled out from the reel, and the stretched state is laminated on the surface of the printed material. There is a problem that the printed matter curls as shown in FIGS.

Further, if dust or dirt adheres to the surface of the printed matter or the like, the adhesion between the laminated application sheet and the surface of the printed matter is deteriorated and the quality of the product is deteriorated. It is necessary to remove dust and dirt from the surface of the printed matter prior to this, and therefore, conventionally, a roller with adhesive properties is rolled on the surface of the printed matter to remove dust and dirt manually, which is very troublesome. There was a problem that the workability was poor.

[0004]

[Problems to be solved by the device]

 This invention is intended to prevent curling of the laminate due to shrinkage of the application sheet, and to automatically remove dust and dirt prior to lamination.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, a means adopted by the present invention is a laminating machine that passes a base sheet and an application sheet between a pair of pressing rollers to laminate the application sheet on the surface of the base sheet. A pair of pull-out rollers for pulling out the application sheet from the reel around which is wound, the pull-out roller and the pressing roller are connected through a conduction mechanism, and the rotation speed of the pull-out roller is slightly higher than that of the pressing roller. It is characterized in that the application sheet is set and relaxed between both rollers to remove the extension of the application sheet caused by the withdrawal.

[0006]

[Work]

 Since the rotation speed of the pull-out roller is made slightly higher than the rotation speed of the pressure roller so that the application sheet is relaxed between the two rollers, the extension of the application sheet caused by the pull-out can be effectively removed.

Since the dust removing roller is arranged in front of the pressing roller, it is possible to remove dust and dirt adhering to the surface of the base sheet and send it to the pressing roller to perform lamination with the application sheet.

The cutting means can automatically cut and divide the extra width of the application sheet protruding from the base sheet, and the divided extra width can be easily processed by winding it on a reel.

[0009]

[Effect of the device]

 According to this invention, the extension of the application sheet caused by the pull-out can be removed by loosening it between the pressing roller and the pull-out roller, so that the laminated sheet laminated with the base sheet does not curl. , You can get high quality products.

Further, since dust and dirt adhering to the base sheet can be removed immediately before being fed to the pressing roller, there is almost no possibility of dust or dirt adhering, and the adhesion of the application sheet due to the adherence of dust or dirt becomes poor. It is possible to prevent the occurrence of perfection and local non-contact areas.

Since the extra width of the application sheet, which is larger than the base sheet, can be automatically cut and divided during the feeding process of the application sheet, the efficiency of the laminating work is improved.

[0012]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. With reference to FIGS. 1 and 2, (1) is a main body of a laminating machine, which is a work board (2) extending horizontally, a leg frame (3) supporting the work board (2), and a center of the work board (2). It has support frames (4) and (5) rising vertically from both sides, and one support frame (5) also serves as a gearbox.

An application sheet (6) made of a transparent film is supported on the upper portions of the support frames (4) and (5), is pulled out substantially vertically downward, and is fed from the front of the work board (2) to the base sheet. A laminated sheet (8), which is a laminate of both sheets (6) and (7), is applied to the surface of (7) and is closely adhered between a pair of pressure rollers (9) and (10) to form a work board (2). Sent to the back of. The application sheet (6) is made of, for example, a transparent or semi-transparent vinyl chloride film sheet, and is wound around a reel (11) and coated with an adhesive on one surface. However, the application sheet (6) is not limited to a transparent film, and is not particularly limited as long as it is a flexible and stretchable sheet material and is laminated on the base sheet (7).

The base sheet (7) is a printed matter printed on, for example, paper, cloth, a plastic sheet, a film, etc., but is not limited to the printed matter, and is a soft and flexible material. The application sheet (6) is not particularly limited as long as it is laminated and coated. The base sheet (7) may be a continuous belt-shaped sheet or a sheet cut into a predetermined length. The base sheet (7) shown in the figure consists of a piece of paper cut to a specified length, the surface of which is printed as desired, and is continuously fed in order to be laminated with the application sheet (6). Then, it is sent out as a continuous base sheet-shaped laminated sheet (8) by being laminated with the application sheet (6). The fed laminated sheet (8) is cut into a product along the edge of the base sheet (7) with a cutter as necessary, in the width direction.

The reel (11), which is a wound product of the application sheet (6), is supported by a support shaft (12) that is rotatably supported on the uppermost portions of the support frames (4) and (5) to move downward. It is pulled out and passed between the pair of pull-out rollers (13) and (14) arranged in parallel to the support frames (4) and (5) and led out between the pressing rollers (9) and (10). The driving force is transmitted to one side (13) of the pull-out roller, and is formed of a silicone rubber roller to prevent the application sheet (6) from adhering to the adhering surface. The other roller (14) facing the pull-out roller (13) on the drive side is an application sheet (6) wound in an S shape between both rollers (13) and (14) on the drive side. It has a function of applying a pulling force by pressing against the pull-out roller (13), and is movable toward the drive-side pull-out roller (13) in order to adjust the pressing force. The pull-out roller (14) on the pressing side is made of a normal rubber roller because there is no risk of sticking to the adhesive surface of the application sheet (6).

Reference numeral (15) is a guide roller arranged between the pull-out rollers (13) and (14) and the pressing rollers (9) and (10), and the application sheet (6) is pressed by the pressing roller (9). ) (10) is guided so that it will be fed in from the front slightly inclined. A cutting means (16) is arranged slightly above the guide roller (15) and cuts an extra width (6 ') of the application sheet (6) which is larger than the base sheet (7). The cut extra width (6 ') is wound around the winding shaft (17) in a reel shape.

A dust removing roller means (18) is arranged in front of the pressing rollers (9) and (10), and the dust removing roller means (18) passes the base sheet (7) and adheres to the surface. Dust and dust are removed. The base sheet (7) from which dust and the like have been removed is sent to the pressure rollers (9) (10), and the application sheet (6) sent at the same time is integrally adhered to the surface to form the laminated sheet (8). It is formed.

The application sheet (6) pulled out from the reel (11) by the pull-out rollers (13) (14) is slightly stretched due to the pull-out force and the elasticity of the sheet, and the base sheet is kept stretched. When laminated on the sheet (7), the laminated sheet (8) curls as shown in FIGS. 13 and 15 due to contraction of the application sheet (6) from which the pulling force has been removed. Therefore, in this invention, the rotation speed of the pull-out rollers (13) (14) is set to be slightly higher than the rotation speed of the pressure rollers (9) (10), and the pull-out rollers (13) (14) and the pressure roller are set. The application sheet (6) is relaxed between (9) and (10) to remove the extension of the application sheet (6).

Referring to FIG. 3, the driving-side pressing roller shaft (19) and pull-out roller shaft (20) are connected by a sprocket (21) (22) and a chain (23) or other winding transmission means. At the same time, the number of teeth of the sprocket (22) on the pull-out roller shaft (20) side is set to the difference in rotational speed between the two shafts (19) (20). It is slightly smaller than the number of teeth in 21). For example, in the illustrated embodiment, the number of teeth of the sprocket (22) on the pull-out roller shaft (20) side is 23, and that on the pressure roller shaft (19) side is 24. As a result, the pull-out rollers (13) and (14) rotate slightly faster than the pressing rollers (9) and (10) to send out the application sheet (6), and the application sheet (6) presses against the pull-out roller by the speed difference. As it is relaxed with the roller, the application sheet (6) stretched by the pulling contracts and the stretch is removed.

The output shaft of the motor (24) is connected to the pressing roller shaft (19). The means for connecting the pressing roller shaft (19) and the pulling roller shaft (20) is not limited to the sprockets (21) (22) and the chain (23), of course, and both shafts (19 ) (20) may be any means as long as it can be connected at a required speed difference. The speed difference between the two shafts (19) and (20) may be a speed difference sufficient to relax the stretched application sheet (6) and remove the stretch of the sheet. If the speed difference is too large, the application sheet (6) may sag between the pressing rollers (9) and (10) and the drawing rollers (13) and (14) and meander. On the other hand, if the speed difference is too small, the elongation of the sheet (6) cannot be sufficiently removed, which is not preferable. However, the elongation of the sheet (6) when it is pulled out varies depending on the material, dimensions, environmental temperature, humidity, etc. of the sheet (6), and it is actually difficult to set the speed difference to a constant value. It shall be changed appropriately based on the above.

FIGS. 4 and 5 show a means for adjusting the pressure contact force between the pull-out rollers (13), (14), and a moving plate (2) for moving the pull-out roller (14) on the floating side forward and backward with screw rods (25). Attach it to 26). The moving plate (26) is supported by a guide frame (27) fixed to the supporting frames (3) and (4), and the moving plate (26) can be moved by manually rotating the screw rod (25). As a result, the idle side pull-out roller (14) advances and retreats toward the drive side pull-out roller (13), and the pressure contact force between both rollers (13) and (14) can be adjusted. Similar pressure contact force adjusting means is also provided on the pressure rollers (9) and (10).

FIGS. 6 and 7 show a means (16) for cutting the extra width (6 ′) of the application sheet (6), and a cutting blade (28) is attached to a mounting bar (28) extending in the width direction of the application sheet (6). 29) is attached so that it can be fixed and moved freely. The cutting blade (29) is moved according to the extra width (6 ′), and the sheet (6) is pierced and fixed. When the sheet (6) is pulled out, the extra width (6 ') is automatically cut and divided, and the divided extra width (6') is wound around the winding shaft (17). In this way, the extra width (6 ') of the application sheet (6) is automatically cut, divided and wound up, so that the work of removing the extra width (6') is extremely simple.

8 to 11 show dust removing roller means (18), and the dust removing roller means (18) is a pair of upper and lower dust removing rollers (30) () along the traveling direction of the base sheet (7). 31) are arranged in pairs. Both or at least the upper rollers (30) of the dust removing rollers (30) and (31) have an adhesive rubber layer formed on the outer layer, and remove dust and the like on the base sheet (7) from the dust removing rollers (30). 30) Remove with the adhesive force of the outer peripheral surface of (31). A cleaning roller (32) is further arranged above the dust removing roller (30) to transfer dust and the like attached to the dust removing roller (30) to the cleaning roller (32). As shown in FIG. 11, the cleaning roller 32 can be easily removed upward to remove the transferred dust and the like. In order to prevent the base sheet (7) from being caught in the roller due to the adhesive force of the dust removing rollers (30) and (31), the winding shaft (33) and the roller (30) (disposed between the rollers) are disposed between the rollers. An entanglement prevention string (34) such as a rubber ring is hung between it and 31). Dust and dust adhering to the surface of the base sheet (7) is removed by passing the base sheet (7) through the dust removing roller means (18) and immediately sent to the pressing rollers (9) and (10). Since the application sheet (6) is laminated by being inserted, there is no possibility that the adhesion of the application sheet (6) due to the adhesion of dust or dust will be deteriorated or the partial adhesion will be insufficient, and a high-quality laminated sheet (8) Can be obtained.

[Brief description of drawings]

 Fig. 1 Perspective view of external appearance of laminating machine according to the present invention Fig. 2 Conceptual diagram of laminating process Fig. 3 Connection mechanism diagram of drawing roller and pressing roller Fig. 4 Perspective view of pressure contact force adjusting means of drawing roller Fig. 5 Pressure contact viewed from other directions 6 is a perspective view of the force adjusting means. FIG. 6 is a perspective view of the cutting means. FIG. 7 is a view conceptually showing the mechanism of the cutting means. FIG. 8 is a side view of the dust removing roller means. FIG. 9 is a sectional view taken along line IX-IX of FIG. Fig. 11 Fig. 11 Perspective view with cleaning roller removed Fig. 12 Cross-sectional view of laminated sheet according to the present invention Fig. 13 Cross-sectional view of conventional laminated sheet Fig. 14 Perspective view of laminated sheet according to the present invention Fig. 15 Conventional laminated sheet Seat perspective view

[Explanation of symbols]

 (1) Main body (2) Work board (3) Leg frame (4) Support frame (5) Support frame (6) Application sheet (7) Base sheet (8) Laminated sheet (9) Press roller (10) Press roller (11) Reel (12) Support shaft (13) Draw roller (14) Draw roller (15) Guide roller (16) Cutting means (17) Winding shaft (18) Dust removing roller means (19) Pressing roller shaft (20) ) Pull-out roller shaft (21) Sprocket (22) Sprocket (23) Chain (24) Motor (25) Screw rod (26) Moving plate (27) Guide frame (28) Mounting bar (29) Cutting blade (30) Dust removal Roller (31) Dust removal roller (32) Cleaning roller (33) Winding shaft (34) Winding prevention cord

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location F16C 13/02 8613-3J // B32B 27/00 C 7717-4F B29L 9:00 4F

Claims (4)

[Scope of utility model registration request] 1. A laminating machine for laminating an application sheet on the surface of the base sheet by passing a base sheet and an application sheet between a pair of pressing rollers, wherein the application sheet is drawn from a reel around which the application sheet is wound. A pair of pull-out rollers are provided, the pull-out roller and the pressing roller are connected via a transmission mechanism, and the rotation speed of the pull-out roller is set to be slightly higher than the rotation speed of the pressing roller to relax the application sheet between both rollers. The laminating machine is characterized in that the extension of the application sheet caused by the withdrawal is removed. 2. The laminating machine according to claim 1, wherein a plurality of pairs of dust removing rollers are arranged in front of the pressing roller. 3. The laminating machine according to claim 2, wherein the dust removing roller comprises a roller having an adhesive rubber layer formed on the outer periphery thereof. 4. The laminate according to claim 1, wherein a cutting means for cutting and dividing an extra width of the application sheet is arranged between the drawing roller and the pressing roller. Machine.