WO2016117239A1

WO2016117239A1 - Double belt press

Info

Publication number: WO2016117239A1
Application number: PCT/JP2015/084905
Authority: WO
Inventors: 浩昭今泉; 貴洋大庭; 宏知前田
Original assignee: 株式会社Ihi; 株式会社Ｉｈｉ物流産業システム
Priority date: 2015-01-21
Filing date: 2015-12-14
Publication date: 2016-07-28
Also published as: CN106715096A; KR101929694B1; JP2016132210A; JP6414975B2; TWI598204B; TW201628815A; KR20170042665A

Abstract

The double belt press (1) according to the present disclosure comprises a pair of endless belts (2, 3) for pressing a workpiece (W) and a pair of pulley groups (4, 5) around each of which the respective endless belt of the pair of endless belts (2, 3) is wound. The pair of pulley groups (4, 5) has belt track-interfering pulleys (6, 8) that mutually interfere with the belt track of the counterpart endless belt (3, 2).

Description

Double belt press

The present disclosure relates to a double belt press. Priority is claimed on Japanese Patent Application No. 2015-9522, filed Jan. 21, 2015, the content of which is incorporated herein by reference.

The double belt press concerning the said technical field is used for the manufacturing method of the prepreg described in the following patent document 1, etc., for example. The double belt press described in Patent Document 1 has a pair of upper and lower endless belts in which reinforcing fibers are impregnated with a thermoplastic resin. The endless belt is wound around a drive roll and a driven roll, and a preheating heater, a press roll, and a cooling roll are disposed between the drive roll and the driven roll. The thermoplastic resin is impregnated into the reinforcing fiber by heating and pressing with a preheating heater and a press roll, and is separated from the endless belt by cooling with a cooling roll. The following

Patent Documents

2 and 3 also disclose techniques related to a double belt press.

Japanese Patent Application Laid-Open No. 2014-105310 Japanese Patent Publication No. 2001-500443 Japanese Patent Application Laid-Open No. 7-173305

However, the prior art disclosed in Patent Document 1 has the following problems. In the process of impregnating a reinforcing fiber with a thermoplastic resin or a thermosetting resin, the residence time of pressure is one of the important parameters. The double belt press described in Patent Document 1 secures a pressure retention time by arranging a plurality of press rolls between the drive roll and the driven roll. However, when a plurality of press rolls are disposed between the drive roll and the driven roll, the entire equipment becomes large. In addition, when a preheating heater, a cooling roll, and the like are disposed between the drive roll and the driven roll, the entire equipment becomes larger and more complicated.

This indication is made in view of the above-mentioned problem, and aims at offer of a double belt press which can perform desired processing with a small and simple composition.

In order to solve the above-mentioned subject, an aspect of this indication is a double belt press which has a pair of endless belts which press a work, and a pair of pulley groups by which a pair of endless belts is wound, The pulley group has a belt track interference pulley that interferes with the belt track of the endless belt (wound around the pulley group) on the other side.

According to the present disclosure, a belt track interference pulley is provided for each of a pair of pulley groups on which a pair of endless belts is wound, and the belt track interference pulleys are belts of endless belts (wound on the pulley group). Make it interfere with the orbit. As a result, the contact arc length of the pair of endless belts sandwiching the work with respect to the belt trajectory interference pulley becomes long. In this case, since the workpiece can be pressurized not by line contact but by surface contact, the dwell time of the pressurization can be sufficiently secured. Thus, the present disclosure provides a double belt press that can perform desired processing with a small and simple configuration.

It is a schematic block diagram of the double belt press in a 1st embodiment of this indication. It is a schematic block diagram of the double belt press in 2nd Embodiment of this indication. It is a schematic block diagram of the double belt press in 3rd Embodiment of this indication. It is a schematic block diagram of the double belt press in 4th Embodiment of this indication.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.

First Embodiment
FIG. 1 is a schematic configuration view of a double belt press 1 according to a first embodiment of the present disclosure. The double belt press 1 has a pair of

endless belts

2 and 3 for pressing the work W, and a pair of

pulley groups

4 and 5 around which the pair of

endless belts

2 and 3 are wound. The work W is, for example, a laminate in which a sheet-like thermoplastic resin is laminated on a sheet-like reinforcing fiber. The pair of

endless belts

2 and 3 are endless belts that press the workpiece W at one surface (contact surface) in contact with the workpiece W, and are, for example, steel belts.

The endless belt 2 is wound around the pulley group 4. The pulley group 4 rotates the endless belt 2. The pulley group 4 has a drive pulley 6 (belt track interference pulley) and a driven pulley 7. The driving pulley 6 is a drum-shaped pulley that is connected to a motor (not shown) and rotates. The driven pulley 7 is a drum-shaped pulley that rotates with the endless belt 2 by the rotation of the drive pulley 6.

The drive pulley 6 and the driven pulley 7 define the curvature of the endless belt 2. The drive pulley 6 and the driven pulley 7 have a predetermined size for relieving bending stress applied to the endless belt 2. For example, when the endless belt 2 is a steel belt, it is technical common knowledge that the pulley diameters of the drive pulley 6 and the driven pulley 7 are several hundred times to one thousand times the thickness of the endless belt 2. As an example, when the thickness of the endless belt 2 is 1 [mm], the pulley diameter of the drive pulley 6 and the driven pulley 7 is about 1 [m].

Meanwhile, the endless belt 3 is wound around the pulley group 5. The pulley group 5 causes the endless belt 3 to run in the same direction as the direction in which the endless belt 2 travels in a contact area in contact with the endless belt 2. The pulley group 5 has a drive pulley 8 (belt track interference pulley) and a driven pulley 9. The drive pulley 8 is a drum-shaped pulley that is connected to a motor (not shown) or the same motor as the drive pulley 6 via a chain or the like and rotates. The driven pulley 9 is a drum-shaped pulley that rotates with the endless belt 3 by the rotation of the drive pulley 8.

The drive pulley 8 and the driven pulley 9 define the curvature of the endless belt 3. The drive pulley 8 and the driven pulley 9 have a predetermined size for relieving bending stress applied to the endless belt 3. In the example of the present embodiment, the

endless belts

2 and 3 have the same thickness, and all the pulley diameters of the

driving pulleys

6 and 8 and the driven

pulleys

7 and 9 are the same.

The pair of

pulley groups

4 and 5 have drive

pulleys

6 and 8 that interfere with the belt tracks of the endless belts 3 and 2 (wound on the pulley groups 5 and 4) on the other side. The drive pulley 6 interferes with the endless belt 3 rewound into the pulley group 5. The tangent L1 connecting the circumferential surface 8a of the adjacent drive pulley 8 and the circumferential surface 9a of the driven pulley 9 forms a virtual belt trajectory of the endless belt 3 when the drive pulley 6 does not interfere with the endless belt 3. The circumferential surface 6 a of the drive pulley 6 is a mating side (the endless belt 3 wound around the pulley group 5) which exceeds the tangent L 1 between the drive pulley 8 and the driven pulley 9 which form the pulley group 5 and are adjacent to each other. Located inside the virtual belt track).

On the other hand, the drive pulley 8 interferes with the endless belt 2 wound around the pulley group 4. A tangent L2 connecting the circumferential surface 6a of the adjacent drive pulley 6 and the circumferential surface 7a of the driven pulley 7 forms a virtual belt trajectory of the endless belt 2 when the drive pulley 8 does not interfere with the endless belt 2. The peripheral surface 8 a of the drive pulley 8 constitutes a pulley group 4, and the opposing side beyond the tangent L 2 between the drive pulley 6 and the driven pulley 7 adjacent to each other (a virtual belt of the endless belt 2 of the pulley group 4 Located inside the orbit). In the example of the present embodiment, the displacement amounts of the

drive pulleys

6 and 8 to the other side (the pulley groups 5 and 4) are the same.

The double belt press 1 has a heating device 10 for heating the drive pulley 6. The drive pulley 6 is heated by the heating device 10 and heats the work W via the endless belt 2. The heating device 10 can use, for example, thermal oil, steam, an electric heater (resistance wire), induction heating or the like. In the example of the present embodiment, a flow passage (not shown) for circulating a heat medium such as hot oil or steam in the rotation axis direction is formed inside the drive pulley 6. As such a drive pulley 6, for example, a well-known drilled roll or a bowed roll can be adopted.

When heating the work W to a target temperature, it is preferable to use the heating device 10 for contact heating using a heat medium such as hot oil or steam. On the other hand, when the heating device 10 of non-contact heating such as an electric heater or induction heating is used, the work W may be overheated because the heat source is higher than the target temperature. The double belt press 1 has a cooling device 11 for cooling the drive pulley 8. The drive pulley 8 is cooled by the cooling device 11, cools the endless belt 3 via the drive pulley 8, and cools the work W via the endless belt 3. For example, water, oil, cooling gas or the like can be used as the cooling device 11. In the example of the present embodiment, a drilled roll, a bowed roll, or the like capable of circulating the refrigerant can be employed as the drive pulley 8.

In the double belt press 1 configured as described above, the work W is introduced between the pair of

endless belts

2 and 3 and heated at a contact area contacting the drive pulley 6 heated by the heating device 10 with the endless belt 2. It is pressurized. The thermoplastic resin contained in the workpiece W is softened and impregnated into the reinforcing fibers by the heating and pressing. Thereafter, the workpiece W is conveyed downstream by the pair of

endless belts

2 and 3 and is cooled at a contact area where the drive pulley 8 cooled by the cooling device 11 contacts the endless belt 3. By this cooling, the thermoplastic resin impregnated in the reinforcing fibers is cured, and the work W is separated from the pair of

endless belts

2 and 3 and is delivered from the pair of

endless belts

2 and 3 as a prepreg.

In the double belt press 1 of the present embodiment, as shown in FIG. 1, a pair of

pulley groups

4 and 5 around which the pair of

endless belts

2 and 3 are wound is wound around the

pulley groups

5 and 4 on the opposite side. A pair of drive pulleys 6, 8 that interfere with the belt tracks of the endless belts 3, 2). According to this configuration, the transport path of the work W is substantially S-shaped, and the contact arc length of the pair of

endless belts

2 and 3 sandwiching the work W with respect to the pair of drive pulleys 6 and 8 is long. Thus, in the contact area where the work W contacts the drive pulleys 6 and 8 via the

endless belts

2 and 3, pressurization of the work W can be performed not by line contact but by surface contact. Even if it is short, sufficient residence time of pressurization can be secured. Further, the drive pulleys 6 and 8 have predetermined magnitudes for relieving bending stress applied to the

endless belts

2 and 3. That is, since the contact arc length of the

endless belts

2 and 3 with respect to the drive pulleys 6 and 8 becomes long when the diameters of the drive pulleys 6 and 8 have a predetermined size, the pressure residence time is sufficient. Can be secured.

Further, in the present embodiment, the circumferential surface 6a of the drive pulley 6 is a tangent L1 connecting the

circumferential surfaces

8a and 9a between the adjacent drive pulley 8 and the driven pulley 9 constituting the pulley group 5 on the opposite side. (The inner side of the imaginary belt track of the endless belt 3 wound around the pulley group 5). Further, the peripheral surface 8a of the drive pulley 8 is a partner side (that is, beyond the tangent L2 connecting the

peripheral surfaces

6a and 7a) between the adjacent drive pulley 6 and the driven pulley 7 constituting the pulley group 4 on the counterpart side. It is located inside the virtual belt track of the endless belt 2 wound around the pulley group 4). According to this configuration, since the drive pulleys 6 and 8 are less likely to interfere with the

pulley groups

5 and 4 on the opposite side, the contact arc length of the workpiece W with respect to the drive pulleys 6 and 8 can be easily adjusted. The dwell time of pressurization is uniquely determined by "contact arc length / line speed". For this reason, after determining the residence time of pressurization by element test etc., the line speed of the double belt press 1 is taken into consideration, and the layout of the drive pulleys 6, 8 is determined so that the required contact arc length can be secured. Work is easier.

Further, in the present embodiment, the heating device 10 for heating the drive pulley 6 is provided. According to this configuration, in the contact area where the drive pulley 6 contacts the work W via the endless belt 2, the work W can be sufficiently heated in a predetermined residence time. Also, the drive pulley 6 rotates with the endless belt 2 and slippage between the drive pulley 6 and the endless belt 2 hardly occurs. For this reason, the contact condition of the drive pulley 6 and the endless belt 2 does not change momentarily, and stable contact heating becomes possible. Moreover, by adopting the heating device 10 for contact heating, it is possible to prevent overheating of the work W and to perform temperature control of the work W with certainty. Further, since the drive pulley 6 has a large diameter and a large heat capacity as described above, it is possible to rapidly raise the work W having a relatively small thickness and a small heat capacity to the same temperature as itself.

Further, in the present embodiment, a cooling device 11 is provided which cools the drive pulley 8 positioned on the downstream side in the traveling direction of the workpiece W than the drive pulley 6. According to this, since the thermoplastic resin of the work W can be cured and the work W can be peeled off from the pair of

endless belts

2 and 3, the entire length of the equipment can be shortened as compared with the natural cooling method. Furthermore, in the present embodiment, one pulley of the pulley group 5 on the opposite side forming the tangent L2 over which the drive pulley 6 passes is the drive pulley 8. According to this, since the heated drive pulley 6 and the cooled drive pulley 8 are disposed adjacent to each other, the heated work W can be cooled quickly, and the entire length of the equipment can be shortened. . Further, as described above, the drive pulley 6 also serves as the heating device 10 and the drive pulley 8 serves as the cooling device 11, whereby the equipment can be miniaturized and simplified.

As described above, according to the above-described embodiment, a double including the pair of

endless belts

2 and 3 pressing the work W and the pair of

pulley groups

4 and 5 around which the pair of

endless belts

2 and 3 are wound. The belt press 1 is a pair of

pulley groups

4 and 5 that interfere with the belt tracks of the endless belts 3 and 2 (wound on the pulley groups 5 and 4) on the other side. Have. According to this, it is possible to obtain the double belt press 1 capable of performing the impregnation process of the prepreg with a small and simple configuration.

Second Embodiment
Next, a second embodiment of the present disclosure will be described. In the following description, the component parts identical or equivalent to those of the above-described embodiment are denoted by the same reference numerals, and the description thereof will be simplified or omitted.

FIG. 2 is a schematic configuration view of a double belt press 1A according to a second embodiment of the present disclosure. The double belt press 1A of the second embodiment has a pair of

pulley groups

4A, 5A and a pair of

meander control devices

12, 13.

The pulley group 4A of the second embodiment includes a drive pulley 6A having a pulley diameter several times larger than the pulley diameter of the driven pulley 7. Further, the pulley group 5A of the second embodiment has a drive pulley 8A having a pulley diameter several times larger than the pulley diameter of the driven pulley 9. The pulley diameters of the driven

pulleys

7 and 9 are the same as in the first embodiment described above.

The

meandering control devices

12 and 13 are driven via driven pulleys 7 and 9 (belt track non-interference pulleys) which do not interfere with the belt tracks of the endless belts 3 and 2 (wound around the

pulley groups

5A and 4A). It controls the meandering of the

endless belts

2 and 3. That is, in the contact area where the driven pulley 7 contacts the work W via the endless belt 2, the driven pulley 7 is separated from the endless belt 3 (wound around the second pulley group 5A) on the other side , Does not interfere with the belt trajectory of the endless belt 3. Further, in the contact area where the driven pulley 9 contacts the work W via the endless belt 3, the driven pulley 9 is separated from the endless belt 2 (wound around the pulley group 4A) on the opposite side, and is endless It does not interfere with the belt track of the belt 2.

The meandering control device 12 applies tension to the endless belt 2 via the driven pulley 7 and tilts the rotational axis of the driven pulley 7 to control the edge position of the endless belt 2. Further, the meander control device 13 applies tension to the endless belt 3 via the driven pulley 9 and tilts the rotational axis of the driven pulley 9 to control the edge position of the endless belt 3. . The

meander control devices

12 and 13 include, for example, a moving mechanism such as a hydraulic cylinder.

According to the double belt press 1A of the second embodiment of the above configuration, as shown in FIG. 2, since the diameter of the drive pulleys 6A and 8A is large, the contact arc length of the work W to the drive pulleys 6A and 8A is sufficient. Can be secured. The diameters of the drive pulleys 6A and 8A may be changed in order to set the heating time of the workpiece W by the drive pulley 6A and the cooling time of the workpiece W by the drive pulley 8A to desired values.

Further, according to the double belt press 1A of the second embodiment, since the

meandering control devices

12 and 13 for controlling the meandering of the

endless belts

2 and 3 through the driven

pulleys

7 and 9 are provided, the EPCs of the

endless belts

2 and 3 can be obtained. (Edge Position Control) Control can be performed. Since the driven

pulleys

7, 9 do not interfere with the endless belts 3, 2 (wound around the

pulley groups

5A, 4A) on the other side, EPC control can be performed easily and rationally.

Third Embodiment
Next, a third embodiment of the present disclosure will be described. In the following description, the component parts identical or equivalent to those of the above-described embodiment are denoted by the same reference numerals, and the description thereof will be simplified or omitted.

FIG. 3 is a schematic configuration view of a double belt press 1B according to a third embodiment of the present disclosure. The double belt press 1B of the third embodiment includes a pair of

pulley groups

4B and 5B and an auxiliary roller 15. The pair of

pulley groups

4B and 5B and the auxiliary roller 15 of the third embodiment are integrally supported by the main body frame 1a and are unitized.

The pulley group 4B of the third embodiment includes a drive pulley 6B having a pulley diameter several times larger than the pulley diameter of the driven pulley 7. Further, the pulley group 5B of the third embodiment has a drive pulley 8B having a pulley diameter several times larger than the pulley diameter of the driven pulley 9. Further, the pulley group 5B has a second driven pulley 14 having a pulley diameter larger than the pulley diameter of the driven pulley 9 and smaller than the pulley diameter of the driving pulley 8B. The peripheral surface 6a of the drive pulley 6B is a mating side beyond the tangent L1 connecting the peripheral surface 14a of the second driven pulley 14 and the peripheral surface 8a of the drive pulley 8B (endless wound around the pulley group 5B Located inside the virtual belt track of the belt 3).

The auxiliary roller 15 is located on the opposite side beyond the tangent L1, and faces the drive pulley 6B with the pair of

endless belts

2 and 3 interposed therebetween. A plurality of auxiliary rollers 15 are provided at intervals in the traveling direction of the work W in a contact area where the first drive pulley 6B contacts the work W via the endless belt 2. The auxiliary roller 15 is in line contact with the back surface of the endless belt 3, and the endless belt 3 is not wound. The auxiliary roller 15 is provided with a pressure mechanism (not shown), and can adjust the pressure on the drive pulley 6B.

According to the double belt press 1B of the third embodiment of the above configuration, the auxiliary roller 15 can assist (assist) the pressing force in the contact area where the drive pulley 6B contacts the work W via the endless belt 2. In the contact area where the drive pulley 6B contacts the work W via the endless belt 2, a pressure can be obtained by the tension of the

endless belts

2 and 3. The applied pressure is obtained by T / r [N / m ² ] by the tension T [N / m] per unit width of the

endless belts

2 and 3 and the radius r [m] of the drive pulley 6. As in the third embodiment, when the diameter of the drive pulley 6B is increased, the pressing force due to the tension decreases, so it is preferable to add the auxiliary roller 15 when the pressing force is insufficient.

Fourth Embodiment
Next, a fourth embodiment of the present disclosure will be described. In the following description, the component parts identical or equivalent to those of the above-described embodiment are denoted by the same reference numerals, and the description thereof will be simplified or omitted.

FIG. 4 is a schematic configuration view of a double belt press 1C according to a fourth embodiment of the present disclosure. The double belt press 1C of the fourth embodiment has a pair of

pulley groups

4C, 5C, a T die 16, and a guide roller 17.

Similar to the third embodiment, the pulley group 4C of the fourth embodiment has a drive pulley 6C having a pulley diameter several times larger than the pulley diameter of the driven pulley 7. Further, the pulley group 5C of the fourth embodiment has a driving pulley 8C having a pulley diameter several times larger than the pulley diameter of the driven pulley 9. Further, the pulley group 5C has a second driven pulley 14 having a pulley diameter larger than the pulley diameter of the driven pulley 9 and smaller than the pulley diameter of the drive pulley 8C.

The T-die 16 is a resin supply device that is disposed immediately above the second driven pulley 14 whose position is fixed and the first drive pulley 6C, and supplies the melted thermoplastic resin. Examples of thermoplastic resins include polyesters such as polyethylene terephthalate, polybutylene terephthalate and liquid crystal polyester, polyolefins such as polyethylene, polypropylene and polybutylene, polyoxymethylene, polyamide, polycarbonate, polymethylene methacrylate, polyvinyl chloride and polyphenylene sulfide , Polyphenylene ether, polyimide, polyamide imide, polyether imide, poly sulfone, polyether sulfone, polyether ketone, polyether ether ketone, phenol (novolak type) etc., copolymers of these, modified products, and two or more types blended Resin etc. are mentioned. Furthermore, in order to further improve the impact resistance, an elastomer or a resin obtained by adding a rubber component may be used. These resins may be used in combination of two or more.

The guide roller 17 guides a work W made of a sheet-like reinforcing fiber between the pair of

endless belts

2 and 3. Examples of the reinforcing fibers include carbon fibers, graphite fibers, aramid fibers, silicon carbide fibers, alumina fibers, boron fibers, tungsten carbide fibers, glass fibers and the like. These may be used alone or in combination of two or more.

According to the double belt press 1C in the fourth embodiment of the above configuration, it is possible to impregnate the reinforcing fiber with the thermoplastic resin by the die method. The T-die 16 is supplied while extruding the thermoplastic resin from the die head, and since the inside is in a sealed state, there is no foreign matter contamination from the outside. Moreover, the thickness of the thermoplastic resin supplied from the T-die 16 is excellent in uniformity, and a prepreg without thickness unevenness can be manufactured.

The preferred embodiments of the present disclosure have been described above with reference to the drawings, but the present disclosure is not limited to the above-described embodiments. The shapes, combinations, and the like of the constituent members shown in the above-described embodiment are merely examples, and various changes can be made based on design requirements and the like without departing from the spirit of the present disclosure.

For example, although the configuration in which the drive pulleys 6 and 8 are belt trajectory interference pulleys is illustrated in the above embodiment, the present disclosure is not limited to this configuration. For example, the driven

pulleys

7 and 9 may be belt track interference pulleys. That is, the drive pulleys 6, 8 may be belt track non-interference pulleys.

Further, for example, although the configuration in which the

meander control devices

12 and 13 are provided to each of the driven

pulleys

7 and 9 has been described in the above embodiment, the present disclosure is not limited to this configuration. For example, only one of the driven

pulleys

7 and 9 may be serpentine controlled.

Also, for example, although the configuration in which the auxiliary roller 15 assists the pressing force has been described in the above embodiment, the present disclosure is not limited to this configuration. For example, a second heating device that heats the auxiliary roller 15 May be provided to assist the heating by the drive pulley 6. Further, not only the driving pulley 6 but also the auxiliary roller 15 may be provided opposite to the driving pulley 8 or a second cooling device for cooling the auxiliary roller 15 may be provided.

For example, although the above-mentioned embodiment explained a composition which heats driving pulley 6, if heating is further needed for a treatment process of work W, it may be composition which heats driving pulley 8, too. Also, conversely, if heating is not necessary for the process of processing the workpiece W, the heating device 10 is not necessarily required. Similarly, if the cooling device 11 does not require cooling in the process of processing the workpiece W, the cooling device 11 is not necessarily required.

For example, although the case where double belt press 1 was applied to the impregnation process of the thermoplastic resin of a prepreg was illustrated in the above-mentioned embodiment, this indication is not limited to this composition, for example, double belt press 1 The impregnation process of thermosetting resin (for example, epoxy resin, urethane resin), compression process to reduce the thickness of the work W, lamination process to bond the sheet to the work W, uniform thickness of the work W It can be applied to a calibration process and the like. Further, as applied products, for example, fiber-based composite reinforced materials, glass fiber stampable sheets, floorings, building materials, natural fiber boards, radiation reinforced materials, wood plastic composites, materials for printed circuit boards, electronic device parts and the like are listed. Be

According to the present disclosure, it is possible to obtain a double belt press that can perform desired processing with a small and simple configuration.

1 Double Belt Press 2 Endless Belt 3 Endless Belt 4 (4A, 4B, 4C) Pulley Group 5 (5A, 5B, 5C) Pulley Group 6 (6A, 6B, 6C) Drive Pulley (Belt Trajectory Interference Pulley)
6a circumferential surface 7 driven pulley (belt track non-interference pulley)
7a Peripheral surface 8 (8A, 8B, 8C) Drive pulley (belt track interference pulley)
8a circumferential surface 9 driven pulley (belt track non-interference pulley)
9a circumferential surface 10 heating device 11 cooling device 12 meander control device 13 meander control device 14 second driven pulley 14a circumferential surface 16 T die (resin supply device)

Claims

A double belt press having a pair of endless belts for pressing a work and a pair of pulley groups on which the pair of endless belts are wound,
A double belt press having a pair of pulley groups comprises a belt track interference pulley that interferes with the belt track of the endless belt on the opposite side.
The circumferential surface of the belt track interference pulley is located on the other side beyond the tangent connecting the circumferential surfaces of the adjacent pulleys between adjacent pulleys constituting the opposing pulley group. Double belt press described.
The double belt press according to claim 2, wherein at least one of the adjacent pulleys is the opposite belt track interference pulley.
The double belt press according to claim 2 or 3, further comprising an auxiliary roller positioned on the opposite side beyond the tangent connecting the circumferential surfaces of the adjacent pulleys and facing the belt track interference pulley.
The double belt press according to any one of claims 1 to 4, further comprising a heating device for heating the belt track interference pulley of at least one of the pair of pulley groups.
A heating device for heating the belt track interference pulley of one of the pair of pulley groups;
5. A cooling device for cooling the belt track interference pulley of the other of the pair of pulley groups located on the downstream side of the workpiece in the traveling direction with respect to the belt track interference pulley to be heated. Double belt press as described in or.
The pair of pulley groups have belt track non-interference pulleys that do not interfere with the belt track of the endless belt on the opposite side,
The double belt press according to any one of claims 1 to 6, further comprising a meander control device for controlling meandering of the endless belt via at least one of the belt track non-interference pulleys of the pulley group.
The double belt press according to any one of claims 1 to 7, further comprising a resin supply device for supplying a molten resin to a contact surface with the work in the endless belt.
8. The work according to claim 1, wherein the work is a laminated body in which a sheet-like resin is laminated on a sheet-like reinforcing fiber, and the laminated body is pressured by a pair of endless belts to be delivered as a prepreg. Double belt press described.