JP2896603B2 - Flexible tubular substrate manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

TECHNICAL FIELD The present invention relates to an apparatus for manufacturing a flexible tubular base material used when applying a coating agent to an outer peripheral surface of a flexible tubular base material and drying the coating agent. Here, the flexible tubular substrate refers to a tubular material having a weak stiffness, such as a tubular woven fabric, a tubular woven fabric, or a tubular soft plastic film.

[Prior art]

Conventionally, a coating and drying apparatus performs coating and drying on one surface of a belt-shaped substrate, and cannot perform coating and drying on the outer peripheral surface of a flexible tubular substrate.

[Problems to be solved by the invention]

Therefore, when manufacturing a tubular product coated on the outer surface based on a flexible base material, an application agent is applied to one surface of the strip-shaped flexible base material and dried, and both ends of the obtained strip-shaped material are dried. The edges have been joined together by sewing or bonding to form a tube, and an application agent is applied to the joint as required and dried to obtain a tubular product. However, the manufacturing method has a drawback that the manufacturing cost is increased due to the need for labor for joining, and further, since the flexibility is different between the joined portion and the non-joined portion, it is possible to obtain a uniform cylindrical product as a whole. I couldn't. An object of the present invention is to provide an apparatus for manufacturing a flexible tubular base material capable of applying and drying a coating agent on the outer peripheral surface of a flexible tubular base material in order to solve the above-mentioned problems.

[Means for Solving the Problems]

The means employed by the apparatus for manufacturing a flexible tubular base material according to the present invention (hereinafter, referred to as “the present invention apparatus”) forms a tubular passage for a flexible tubular base material that is long in the vertical direction, A guide rod, an upper back-up tool, a lower back-up tool, and a lower guide are connected in order from the upper side to the lower side inside the cylindrical passage, and the guide rods are arranged in the upper stock area and the lower stock area. A detachable upper chuck device for fixing the guide bar to the outside of the cylindrical passage at a height position higher than the upper stock area of the guide rod is disposed. A detachable lower chuck device for fixing the guide rod by chucking at a height between the lower stocking area and outside the cylindrical passage, and the upper chuck device and the lower chuck device can be alternately attached and detached. And the upper back-up The lower back-up device includes a housing connected to the guide rod and two parallel back-up rolls pivotally supported on the housing, and the back-up rolls of the upper and lower back-up devices intersect in plan view. The coating device is disposed at the height position of each backup roll and outside the cylindrical passage, and the cylindrical passage is located at the height position between the lower back-up device and the lower guide device. That is, a drying device that penetrates was provided.

[Operation]

When the upper chuck device is removed, the flexible tubular base material can be externally inserted into the upper stock area of the guide rod. When the upper chuck device is put on and the lower chuck device is put off, the flexible tubular substrate can be moved from the upper stock area to the lower stock area. The flexible tubular base material is guided from the lower stock area to the upper and lower back-up devices, guided by the respective back-up rolls of the respective back-up devices, and linearly guided by the back-up roll. Is applied by a coating device. The flexible tubular base material to which the coating film is applied passes through a cylindrical passage in the drying device while maintaining the cylindrical shape until reaching the lower guide, and the coating film is dried.

【Example】

Hereinafter, the device of the present invention will be described based on the embodiment shown in FIGS. As shown in FIG. 1, the device 1 of the present invention forms a tubular passage R for a flexible tubular base material that is long in the vertical direction, and is arranged inside the tubular passage R in order from top to bottom. The guide bar 2, the upper back-up device 5, the lower back-up device 5 and the lower guide device 7 are arranged in a connected state. The device 1 of the present invention
Outside the cylindrical passage R, an upper chuck device 3, a lower chuck device 4, a plurality of coating devices 6 and a drying device 8 are disposed in this order from top to bottom. The guide rod 2 is made of a light material such as a light alloy material or a fiber reinforced plastic material, and is formed in a rod shape.
The cylindrical passage R formed on the outer peripheral side is divided into an upper stock area R1 and a lower stock area R2. The guide rod 2 has portions to be hooked 2a and 2b formed above the upper stock area R1 and between the upper stock area R1 and the lower stock area R2. An upper chuck device 3 and a lower chuck device 4 for chucking the to-be-checked portions 2a, 2b are chuck claws which are advanced and retracted by operating tools 3b and 4b such as air cylinders.
A plurality of sets 3a and 4a are provided. Lower stock area R2
Is divided into an upper region R2-2 and a lower region R2-3 by a joining region R2-1. On the outer peripheral side of the joint area R2-1, the joint area R2
A substrate joining device 9 made of an overlock sewing machine or the like moving around -1 is provided. Below the joining area R2-1, an overfeed device 10 including a plurality of pressure rolls 10a is provided. This overfeed device 10
Can be applied to the flexible tubular base material B, which has been joined, in the upper region R2-
2 to the lower region R2-3, and quickly move to the upper region R2-2.
Next, a new flexible tubular base material B can be guided. At the lower end of the lower region R2-3, an umbrella-shaped guide portion 2c is formed as shown in FIGS. A transport device 11 is provided below the guide bar 2 between the back-up device 5 and the guide bar 2 as needed. Transfer device
Reference numeral 11 includes a housing 13 and rolls to be pressed 14 and 14 disposed inside the cylindrical passage R, and drive rolls 16 and 16 disposed outside the cylindrical passage R. The housing 13 is detachably connected to the guide portion 2c of the guide rod 2 via the connection rod 12, and pivotally supports the pressurized rolls 14,14. Housing 1
3 outer surface 13a and outer peripheral surfaces 14a, 14a of rolls 14, 14 to be pressed.
Is in contact with the inside of the cylindrical passage R. The drive rolls 16 and 16 press each roll 14 to be pressed,
It is arranged on the body frame 15 so as to be able to move forward and backward. This transport device 11 is designed to carry out a flexible tubular base material B which is stored in a bellows shape in a lower region R2-3 of the guide rod 2 to a lower back-up tool 5, 5 at a predetermined speed. . As shown in FIGS. 1 to 3, the upper back-up device 5 includes a connecting rod 18 detachably connected to the lower end of the guide rod 2 via a transfer device 11, and a housing 19 joined to the connecting rod 18. And parallel backup rolls 20, 20 pivotally supported by the housing 19. Outer surface 19a of housing 19 and outer peripheral surfaces 20a, 20a of rotatable backup rolls 20, 20
Is in contact with the inside of the cylindrical passage R. The lower back-up tool 5 is connected to the upper back-up tool 5 by a connecting rod.
The back-up rolls 20, 20 of the upper and lower back-up components 5, 5 are arranged so as to be orthogonal to each other in plan view. The roll surface length L (see FIG. 3 (B)) of each back-up roll 20 is determined such that the circumferential divided region of the cylindrical passage R is in contact with any one of the back-ups 20. This is so that coating can be performed on the entire outer circumferential surface of the flexible cylindrical base material B passing through the cylindrical passage R in the circumferential direction by the coating devices 6, 6,. Below the lower back-up device 5, an upper guide device 21 having an umbrella-shaped guide portion 21a is provided continuously as required. The coating device 6 is provided for each one of the back-up rolls 20 of the back-up device 5. The coating device 6 includes a holder 22 disposed on the main body frame 15 and retreating toward the back-up roll 20, and a coating tool 23 attached to the holder 22. Each coating device 6 has a third
As shown in the figure, the roll surface length L of the back-up roll 20 can be obtained as the effective coating width W, and the flexible tubular base material B is coated with four sets of coating devices 6, 6,. The coating agent can be applied to the entire outer circumferential surface in the circumferential direction.
Each applicator 6 is of a blade coat type when the applicator 23 is formed by a blade having a spring characteristic.
Is formed by a knife having a large rigidity, a knife coat method is employed, and a high-viscosity or low-viscosity coating agent can be applied. Although not shown, the coating device 6 is a spray coater that sprays a low-viscosity coating material toward the outer peripheral surface Ba of the flexible tubular base material B guided by the back-up roll 20 of the back-up device 5. It is also possible to adopt a method or the like, and it is also possible to partially apply the outer peripheral surface Ba of the flexible tubular base material B. The lower guide 7 (see FIG. 1) is formed in a spherical or bowl shape from a light alloy material or the like, and is connected 26 to the lower back-up tool via a connecting rod 25 and an upper guide 21. In the drying device 8, as shown in FIGS. 1 and 4, a tubular passage R extending between the guide 21 and the lower guide 7 penetrates in the vertical direction at the center. The drying device 8 includes a main body box 30.
And a hot air generator 31 including a fan 31a, a heater 31b, and the like built in the main body box 30, and a discharge side 31c of the hot air generator 31
And a plurality of annular ducts 33 branched from the main duct 32 and a suction side 31 of the hot air generator 31
and a return path 35 communicating with d. The annular duct 33 has an annular nozzle 33a for blowing hot air toward the cylindrical passage R, and an annular guide plate 33b for guiding hot air.
It has. The main body box 30 is provided with an exhaust passage 36 at an appropriate position. The drying device 8 is not limited to the hot air drying method, but may be an infrared drying method or a drying method using both hot air and infrared rays according to the optimum drying characteristics of the coating film Cb (see FIG. 3). It is possible. Although not shown, a cooling device that blows cool air toward the cylindrical drying R may be provided below the drying device 8. Below the lower guide 7, a drawer 28 is provided as shown in FIG. The drawing device 28 includes a driving roll 28a and a pressure roll 28b, and the two rolls 28a and 28b are used to flatten the coated and dried flexible tubular base material B that has passed through the tubular passage R. It is pulled out while nipping. The pull-out device 28 is a drive roll of the transfer device 11.
Driven by constant tension control based on the 16 transport speeds, the tension of the flexible tubular base material B passing through the backup tools 5, 5 and the drying device 8 is kept constant. Above the back-up device 5, a tension detector 29 of a touch roll type or the like for constant tension control is provided. Next, the operation procedure of the device 1 of the present invention will be described. First, as shown in FIG. 1, the check claws 3a, 3 of the upper check device 3 are used.
a is retracted to remove the cartridge, and the cartridge 40 is carried in above the guide rod 2. The cartridge 40 is formed by fitting a flexible tubular base material B having an appropriate length into a bellows shape. The flexible tubular base material B of the cartridge 40 is forcibly moved downward and inserted into the upper stock area R1 of the guide rod 2 so as to fit outside.
Next, the chucks 3a, 3a,... Of the upper chucking device 3 are advanced to be put on, and then the lower chucking device 4 is removed, so that the flexible tubular base material B remains in a bellows-like upper stock area.
It moves from R1 to the lower area R2-2 of the lower stock area R2. In the same manner as described above, the flexible tubular base material B is moved to the upper region R2-1 of the lower stock region R2 while maintaining the bellows shape. Then, the end portions of the flexible tubular substrates B, B stocked in the upper region R2-1 and the lower region R2-2 of the lower stock region R2 are joined by the substrate joining device 9. The loading of the flexible tubular substrate B and the joining of the ends are performed in the lower region R2-2 of the lower stock region R2.
Then, the flexible tubular base material B is always stocked. The flexible tubular base material B stocked in the lower region R2-2 is guided in advance at its lower end to the lower drawing device 28, and is forcibly conveyed by the conveying device 11, and the upper backing device 5 and the lower backing device. It is carried out to the tool 5. As shown in FIG. 3 (A), the flexible tubular base material B is coated with the coating material Ca on the base material surface Ba by each coating device 6 while passing through the respective backup rolls 20 of the respective backup tools 5. Applied. Outer surface Ba
As shown in FIG. 1, the flexible tubular base material B coated with the coating film Cb is maintained in a cylindrical shape by the upper guide 21 and the lower guide 7, and the cylindrical passage in the drying device 8 is provided. Pass through R. The drying device 8 blows out hot air of an appropriate temperature supplied from the hot air generating device 21 from each annular nozzle 23a toward the coating film Cb (see FIG. 4), and the hot air of the flexible tubular base material B passing therethrough is discharged. The coating film Cb is dried. The dried flexible tubular base material B is guided to the drawing device 28 and carried out to the next step.

【The invention's effect】

As described in detail above, the device of the present invention has the following excellent effects. By alternately attaching and detaching the upper chuck device and the lower chuck device, the guide rod can be supported,
A fixed length of flexible tubular base material can be successively carried into the lower stock area. Since the back-up device is connected to the supported guide rod, it can be supported in a stable state. The back-up device guides the application region of the flexible tubular substrate on the roll surface of the back-up roll in a linear state optimal for uniform application.
As a result, the device of the present invention can apply the coating agent to the entire outer circumference or a part of the flexible tubular base material with a uniform thickness. Since the flexible tubular base material having the outer peripheral surface coated with the coating film is guided by the lower guide, it passes through the base material passage in the drying device while maintaining the tubular shape. As a result, the apparatus of the present invention can uniformly dry the coating agent applied to the outer peripheral surface of the flexible tubular substrate. The present invention can also produce a flexible tubular base material in which a coating agent is uniformly applied and dried on the entire outer periphery, so that a novel 2
It is possible to provide materials for the next product, and to promote the development of new products.

[Brief description of the drawings]

All the drawings show an embodiment of the apparatus of the present invention, FIG. 1 is a longitudinal sectional view showing the whole, FIG. 2 is a perspective view showing upper and lower back-up devices, and FIG. 3 (A) is a back-up device. And FIG. 3 (B) is a cross-sectional view of a state in which the coating device is longitudinally cut.
Is a plan view in which a back-up tool and a coating device are partially sectioned,
FIG. 4 is a cross-sectional view of the drying apparatus taken along the line IV-IV in FIG. 2 ... Guide rod, 3 ... Upper chuck device 4 ... Lower chuck device, 5 ... Back-up tool 6 ... Coating device, 7 ... Lower guide device 8 ... Drying device, 20 ... Back-up roll R ... ... cylindrical passage R1 ... upper stock area, R2 ... lower stock area

Claims (1)

(57) [Claims] 1. A tubular passage for a flexible tubular substrate which is long in the vertical direction is formed. Inside the tubular passage, a guide rod, an upper back-up device, and a lower part are arranged in order from top to bottom. The back-up tool and the lower guide are connected to each other, and the guide bar is divided into an upper stock area and a lower stock area, and is located at a height above the upper stock area of the guide bar and outside the cylindrical passage. A detachable upper chuck device for chucking the guide rod, and fixing the guide rod at a height between the upper stock area and the lower stock area of the guide rod and outside the cylindrical passage. A detachable lower chuck device is provided so that the upper chuck device and the lower chuck device can be alternately attached and detached. The upper backup device and the lower backup device have a housing connected to the guide rod and water in the housing. And two parallel back-up rolls pivotally mounted on the back-up tool, and the back-up rolls of the upper and lower back-up devices are arranged so as to intersect in a plan view, and the height of each back-up roll and a cylindrical shape are provided. A flexible device, wherein a coating device is disposed outside the passage, and a drying device through which the cylindrical passage penetrates is disposed at a height between the lower back-up device and the lower guide device. Equipment for the production of glass substrates.