JPH0680390B2 - Method and device for intermittent feeding / delivery of sheet-like material into vacuum dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to intermittent feeding of sheet material into a vacuum dryer.
The present invention relates to improvement of the sending means.

[Prior Art] A sheet-like material that requires a minimum water content, for example, a separation membrane used for a battery or the like, needs to maintain the water content after drying at a minimum value on the order of ppm. In order to maintain the water content after drying of the material to be dried in the order of ppm, hot air drying under atmospheric pressure is inappropriate, for example, by a vacuum dryer with a built-in microwave projection device, far infrared irradiation device, etc. The drying process is used.

[Problems to be Solved by the Invention] When the above vacuum dryer is used, the sheet material is put into a vacuum atmosphere from the atmospheric pressure due to a complicated sealing device, and the dried sheet material is vacuum atmosphere. It becomes difficult to discharge from inside to atmospheric pressure. Therefore, the batch method has been conventionally used, and it has been recognized that there are difficulties in improving the drying efficiency and controlling the water content.

[Means for Solving the Problems] As a means for solving the above problems, the present invention provides (1) a sheet material is pressed into the vacuum dryer by a seal member on the material input side and the material discharge side of the vacuum dryer. Two pairs of outside air intrusion prevention devices for preventing invasion of outside air are installed in pairs, and a fluid pressure cylinder device and a piston rod of the piston rod of the fluid pressure cylinder device are installed between the pair of outside air intrusion prevention devices installed in pairs. An intermittent feeding machine and an intermittent feeding machine, which consist of a pushing roller attached to the tip and guide rollers provided on both sides of the piston rod, are connected to a negative pressure source via a valve. The above-mentioned intermittent feeding machine and the intermittent feeding machine are provided with a set of two outside air intrusion preventers provided before and after the intermittent feeding machine and the intermittent feeding machine and the intermittent feeding machine. Under the tuning of, drive intermittently in a predetermined order By this, the sheet-shaped material to be dried is put into the vacuum dryer by the pitch feed method, and the sheet material after the drying process is discharged from the vacuum dryer by the pitch feed method. A method for intermittently feeding / delivering a sheet-like material into a vacuum dryer, and (2) a sheet-like material with a sealing member on the material input side and the material discharge side of the vacuum dryer for drying the sheet-like material A pair of outside air invasion preventers that prevent outside air from entering the vacuum dryer by pressing is installed in pairs, and a valve is inserted between these two pairs of outside air invasion preventers. Intermittent feeding of sheet-like material consisting of a fluid pressure cylinder device connected to a negative pressure generating source, a pushing roller mounted on the tip of the piston rod, and guide rollers arranged on both sides of the piston rod. Characterized by being arranged intermittently delivery machine and is to provide a intermittent infeed-delivery device of a sheet-like material into a vacuum dryer.

[Operation] A pair of outside air invasion preventive devices are installed on the material input side and the material discharge side of the vacuum dryer to prevent outside air from entering the vacuum dryer by pressing the sheet material with the seal member. The fluid pressure cylinder device, the pushing roller attached to the tip of the piston rod, and the both sides of the piston rod are arranged between the pair of outside air intrusion preventive devices arranged opposite to each other. An intermittent feeding device and an intermittent feeding device, which include a guide roller and are connected to a negative pressure generation source via a valve, are provided. These intermittent feeding machine and intermittent feeding machine are placed in synchronism with the set of two outside air intrusion preventers installed before and after it and the valves attached to the intermittent feeding machine and intermittent feeding machine. By driving intermittently in a predetermined order, the sheet-shaped material to be dried is fed into the vacuum dryer by the pitch feed method, and the sheet material after the drying process is discharged from the vacuum dryer by the pitch feed method. Let

[Examples] Specific examples of the present invention will be described below with reference to the accompanying FIGS. 1 to 6.

In these drawings, (1) is a vacuum dryer formed by vertically irradiating far-infrared irradiation surfaces (2) and (3) inside, and a main vacuum pressure generator via a suction pipe line (5). (4)
It is connected to the. On the material input side of the vacuum dryer (1), a pair of outside air connected to the auxiliary vacuum pressure generator (7) via the first valve (6) and the suction pipe line (10A). Intrusion prevention devices (8) and (9) are provided, and an air cylinder device (11) and an air cylinder device (11) are provided between the outside air intrusion prevention devices (8) and (9) as shown in an enlarged scale in FIG. Pushing roller (12) rotatably mounted on the tip of the piston rod (16) of the air cylinder device, and piston rod (16)
An intermittent feeding machine (15) composed of a pair of two guide rollers (13) (14) facing each other at a predetermined interval is arranged on both sides of the vertical movement path.

On the other hand, on the material discharge side of the vacuum dryer (1), the second valve (17) and the second one connected to the auxiliary vacuum pressure generating device (7) via the suction pipe line (10B) are connected. A pair of outside air intrusion prevention devices (18) and (19) are arranged, and a space between these outside air intrusion prevention devices (18) and (19) is the same as that of the intermittent feeding device (15) shown in FIG. An intermittent delivery machine (20) having a structure is arranged.

Outside air intrusion prevention device (8) (9) on the sending side, and
The intermittent feeding device (15) is provided along the moving path of the sheet material (21) on the upstream side of the vacuum dryer (1), and the outside air intrusion prevention devices (18) (19) on the feeding side. ),and,
Both are substantially before and after the vacuum dryer (1) except that the intermittent delivery machine (20) is provided along the movement path of the sheet-like material (21) on the downstream side of the vacuum dryer (1). They are formed in the same structure as above. Therefore, the intermittent delivery machine (20) and the outside air intrusion prevention device (8) based on FIG. 2 to FIG.
In the description of (9), (18) and (19), only the first outside air invasion preventer (8) arranged on the most upstream side of the movement path of the sheet-shaped material (21) is described, and the downstream thereof. Second to fourth outside air intrusion preventers (9) (18) arranged on the side
The description of the (19) and the intermittent sending machine (20) is omitted. 2 to 4, the movement path (22) of the sheet-shaped material (21) is such that the upper plate (23) and the bottom plate (24) are brought into close contact with each other under the interposition of the seal (25) and the bottom plate (2).
On the upper surface of 4), a recess (26) into which the sheet-like material (21) is fitted is formed over the entire area in the longitudinal direction. On the front and rear upper plates (23) of the intermittent feeding device (15), two sets of outside air intrusion prevention devices (8) and (9) are arranged facing each other at a predetermined interval. The outside air intrusion prevention device (8) has a piston rod (27) on a part of the upper plate (23) and an insertion opening () for a pressing member (28) fixed to the lower end of the piston rod (27). 29) is formed, the air cylinder device (31) is mounted on the upper plate (23) through the support frame (30), and the lower surface of the upper plate (23) is appropriately fixed by bolting or the like. The means (32) is used to fix a plate-shaped seal member (33) made of a soft rubber plate. The plate-shaped seal member (33) is pressed by the pressing member (28) when the descending stroke is transmitted to the piston rod (27) of the air cylinder device (31),
Prevents invasion of outside air by elastically deforming and entering the dent (26) and cooperating with the seal (25) to press the sheet material (21) located in the dent (26) closely. The device (8) is switched from the open state to the outside air intrusion shutoff state. Incidentally, in FIG. 1, (34) is an electric heater (35),
1 shows a heating assembly of a vacuum dryer (1) including a blower (36) and a heating conduit (38).

The operation sequence of the device of the present invention will be described below with reference to FIGS. 1 and 6.

(A) The state shown in FIG. 1 is the state of step 0 in FIG. That is, the first valve (6) is closed on the input side of the sheet-shaped material, for example, the battery separation membrane (21), and the outside air intrusion prevention devices (8) and (9) are closed. The piston rod (16) of the device (11) is stopped at the raised position. At the same time, on the discharge side of the separation membrane (21), the second valve (1
7) is closed, the outside air intrusion prevention devices (18) (19) are closed, and in this state, the piston rod (16) of the air cylinder device (11) on the discharge side is stopped at the lowered position. That is, the inside of the vacuum dryer (1), the inside of the intermittent feeder (15) on the upstream side, and the inside of the intermittent feeder (20) on the downstream side are isolated from the outside air side, respectively, and the upstream side. The piston rod (16) of the intermittent feeding machine (15) is in the raised position, and the intermittent feeding machine (20) on the downstream side.
The piston rod (16) is in the lowered position.

(B) Go to step 1 from step 0 in (a) above.
That is, with the first valve (6) and the second valve (17) kept closed, the air cylinder device (11) is placed on the input side of the separation membrane (21), that is, on the intermittent delivery machine (15) side. ) Arranged outside the air cylinder device (11) on the discharge side of the separation membrane (21), that is, on the intermittent delivery machine (20) side. Open the intrusion prevention device (19).

(C) Go to step 2. That is, by lowering the piston rod (16) of the air cylinder device (11) arranged on the intermittent feeding machine (15) side, the separation membrane (21) is guided by the guide rollers (13) (14). ) During the downward stroke of the piston rod (16), and at the same time, the piston rod (16) of the air cylinder device (11) arranged on the intermittent delivery machine (20) side is moved from the lowered position. Ascend and return toward the ascended position. In this state, a winding device (not shown) provided on the downstream side of the intermittent delivery machine (20) is activated to remove the separation membrane (21) from inside the intermittent delivery machine (20).
Pull out.

(D) In step 3, the outside air intrusion prevention device (8) on the intermittent delivery device (15) side and the outside air intrusion prevention device (19) on the intermittent delivery device (20) side are closed. Second valve (6) (1
7) is opened and the inside of the intermittent feeding machine (15) and the intermittent feeding machine (20) are vacuum-sucked.

(E) In step 4, the first valve (6) and the second valve (7) are left open, and the air is fed to the rear of the air cylinder device (11) on the intermittent feeder (15) side. The outside air intrusion prevention device (9) arranged, the outside air intrusion prevention device (9) arranged behind the air cylinder device (11) on the intermittent delivery device (20) side, and the intermittent delivery device (20). ) Side, open the outside air intrusion prevention device (18) arranged in front of the air cylinder device (11), and open the outside air intrusion prevention devices (9) (18) and the vacuum dryer (1).
Establish communication between and.

(F) In step 5, the piston rod (16) of the air cylinder device (11) is provided on the side of the brown blower (15) with the first valve (6) and the second valve (7) kept open. Is returned from the lowered position to the raised position, and at the same time, the piston rod (16) of the air cylinder device (11) is lowered on the intermittent delivery machine (20) side, so that a vacuum-dried separation membrane is obtained. (21) is hung between the guide rollers (13) and (14) by the amount of the downward stroke of the piston rod (16).

(G) In step 6, the purpose is to return to the state of step 0, and the first valve (6), the second valve (17), and the outside air intrusion prevention devices (9) (18) are closed to remove these outside air. Intrusion prevention device (8)
(9) The space between the (18) and (19) and the vacuum dryer (1) is restored to the outside air intrusion blocking state.

By repeating the operations of step 0 to step 6 of (a) above, the undried separation membrane (21) is intermittently fed by the downward stroke of the piston rod (16) in the vacuum dryer (1). The separation membrane (21) fed into the inside and vacuum dried is discharged from the inside of the vacuum dryer (1) in the intermittent feed state by the descending stroke of the piston rod (16).

EFFECTS OF THE INVENTION According to the present invention, the undried sheet material is introduced into the vacuum dryer by the intermittent feeding method, and the dried sheet material is discharged from the vacuum dryer by the intermittent feeding method. . Further, by providing a vacuum pressure holding device also serving as a feeding device composed of a set of two outside air intrusion preventive devices and a fluid pressure cylinder device before and after the vacuum dryer, fluctuations in the degree of vacuum in the vacuum dryer can be prevented. Avoided.

[Brief description of drawings]

1 is an overall front view of the device of the present invention, FIG. 2 is a front view of an outside air invasion preventer, FIG. 3 is a cross-sectional view taken along line III-III of FIG. 2, and FIG. 4 is FIG. 5 is a cross-sectional view taken along line IV-IV of FIG. 5, FIG. 5 is a front view of the intermittent feeding machine and the intermittent feeding machine, and FIG.
The figure is a step diagram of the method of the present invention. (1) …… vacuum dryer, (8) (9) (18) (19) …… outside air intrusion preventer, (11) …… fluid pressure cylinder device, (12) …… pushing roller, (13) ( 14) …… Guide roller, (15) …… Intermittent feeder, (16) …… Piston rod (20) …… Intermittent feeder, (21) …… Sheet material.

Claims (2)

[Claims] 1. A material input side and a material discharge side of a vacuum dryer,
A pair of outside air invasion preventive devices that prevent outside air from entering the vacuum dryer by pressing the sheet material with the seal member are installed in pairs, and the pair of outside air invasion prevention devices are installed in pairs. Between the container and the fluid pressure cylinder device, a pushing roller mounted on the tip of the piston rod, and guide rollers arranged on both sides of the piston rod. A connected intermittent feeding device and an intermittent feeding device are provided, and the intermittent feeding device and the intermittent feeding device are provided with two sets of an outside air intrusion prevention device provided before and after the intermittent feeding device and the intermittent feeding device, and an intermittent feeding device. In synchronization with the valve attached to each of the interleaving machine and the intermittent feeding machine, by intermittently driving in a predetermined order, the sheet-shaped material to be dried is fed into the vacuum dryer by the pitch feeding method, and Sheet-shaped material after being dried And intermittent infeed-delivery method of a sheet-like material into a vacuum dryer which is characterized in that none so as to discharge at a pitch feed method from the vacuum dryer. 2. A set of two for preventing outside air from entering the vacuum dryer by pressing the sheet material with a seal member on the material input side and the material discharge side of a vacuum dryer for drying the sheet material. Installed at the tip of the piston rod and the fluid pressure cylinder device connected to the negative pressure source through a valve between these two sets of outside air intrusion preventers. Sheet into the vacuum dryer, characterized in that an intermittent feeding machine and an intermittent feeding machine for the sheet-like material, which are composed of the pushed pushing roller and the guide rollers arranged on both sides of the piston rod, are provided. Device for intermittent feeding / sending of sheet material.