JP4103955B2 - Method and apparatus for supplying cylindrical resin film material to molding drum - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method and apparatus for supplying a cylindrical resin film material to a molding drum. More specifically, for example, in a tire molding process, an inner liner made of a thin cylindrical resin film material having no rigidity is manually used. The present invention relates to a method for supplying a cylindrical resin film material to a molding drum, which can be automatically supplied onto a molding drum without generating wrinkles, and a supply device therefor.
[0002]
[Prior art]
Conventionally, in a tire molding process, a continuous belt-shaped sheet material is cut into a predetermined length and used, or is wound around a molding drum using a belt-shaped member or an annular member molded in advance for each tire. Or laminating and assembling.
[0003]
In addition to this, as a method of using a very thin and non-rigid cylindrical film material and cutting it into a forming drum after cutting it at a fixed length, a plurality of outer peripheral surfaces of the cylindrical film material folded into a flat shape are used. A part is adsorbed by a plurality of suction cups and pushed out to be larger than the outer diameter of the molding drum.In this state, it is inserted into the molding drum and set, or it is folded flat on the auxiliary drum placed at the shaft end of the molding drum. The cylindrical sheet material is opened and fitted, and transferred to a molding drum whose diameter is reduced, and then the molding drum is expanded and held, and the cylindrical sheet material is held between the two drums. Have been proposed (see, for example, Patent Document 1 and Patent Document 2).
[0004]
[Patent Document 1]
JP 2001-219478 A (pages 4 to 5, FIG. 1)
[Patent Document 2]
Japanese Patent Laid-Open No. 11-90891 (pages 2 to 3, FIG. 1)
[0005]
[Problems to be solved by the invention]
However, in the case of a method in which a plurality of locations on the outer peripheral surface of a very thin cylindrical film material are adsorbed by a plurality of suction cups, spread out larger than the outer diameter of the molding drum, transferred to the molding drum, and inserted. Since there is no guide means, wrinkles or the like are likely to occur in the cylindrical film material, and there is a problem that it is very difficult to insert while aligning with the center of the forming drum.
[0006]
In addition, in the case of the method of opening and fitting the front end portion of the cylindrical sheet material folded flat on the auxiliary drum, manpower is required to open the front end portion of the flat cylindrical sheet material. There was a problem that it was difficult to correspond to an automatic molding machine.
[0007]
The present invention pays attention to such a conventional problem, and a cylindrical film material made of a thin cylindrical resin film material having no rigidity can be automatically inserted into the center position of a molding drum without generating wrinkles. It is an object of the present invention to provide a method for supplying a resin film material to a forming drum and a supply device therefor.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a method for supplying a cylindrical resin film material to a forming drum according to the present invention, wherein the cylindrical film material is unwound from a roll wound with the cylindrical film material via a feed guide means. The unrolled cylindrical film material is cut into a predetermined length by a cutting means on a table that can be raised and lowered, and the upper surface of the cut cylindrical film material is sucked and held by a plurality of sucking and holding means into a cylindrical shape. A pair of arcuate guide members which are opened to the vicinity of the molding drum in the open state and are arranged on the axis of the molding drum in the cylindrical film material in the cylindrical open state and which can be opened and closed. And the diameter of the arcuate guide member is expanded to expand the cylindrical film material into a circular state at least larger than the diameter of the forming drum, and in this state, the suction holding means absorbs the cylindrical film material. It is an gist that the held cylindrical film materials arcuate guide member to move into the center position of the forming drum as a guide mounting.
[0009]
Here, when the cylindrical film material sucked and held by the suction holding means is inserted into the molding drum, the end portion of the arcuate guide member is fitted to the insertion end of the molding drum, and the cylindrical film is sucked and held in this state. The material is inserted and transferred in accordance with the center position of the forming drum.
[0010]
In this way, the cylindrical film material made of a thin cylindrical resin film material having no rigidity does not generate wrinkles and can be automatically inserted into the center position of the molding drum, improving workability and productivity. It can be planned.
[0011]
The apparatus for supplying a cylindrical resin film material to a forming drum according to the present invention includes a roll carriage on which a roll obtained by folding and winding a cylindrical thermoplastic resin film material into a sheet is rotatably mounted, and a roll carriage A feed guide means for sequentially feeding the cylindrical film material unwound from the feed guide means while maintaining a predetermined tension; and a cutting means for cutting the cylindrical film material fed from the feed guide means into a predetermined length. A table that can be moved up and down and a plurality of portions on the upper surface of the cylindrical film material that has been cut into a fixed length on the table are sucked and lifted up and down to a nearby position on the forming drum while being opened in a cylindrical shape. A holding means and an opening that penetrates into the cylindrical film material that is opened in a cylindrical shape by the suction holding means and expands into a circular state at least larger than the diameter of the forming drum. Constituted by a pair of arc-shaped guide member which is, it is an gist in that the suction holding means and the arc-shaped guide member is horizontally movable in the axial direction of the forming drum.
[0012]
The suction holding means includes a center plate located at the center in the longitudinal direction of the cylindrical film material, and a pair of left and right swing plates that are swingably connected to both sides thereof. An adsorption member that adsorbs a plurality of locations on the upper surface of the cylindrical film material is provided on the lower surface of the swing plate, and the arc-shaped guide member has an arc shape longer than the length of the cylindrical film material to be cut. The pair of guide members are configured to be opened and closed by a connecting shaft at the center of the upper surface, and are configured to be opened and closed by a link type expansion / contraction mechanism around the connecting shaft. is there.
[0013]
Furthermore, the pair of guide members formed in the arc shape expands at least larger than the diameter of the forming drum when expanding, and when guiding the cylindrical film material to the forming drum side, the end portions of the pair of guide members are It is configured to fit over the insertion end of the forming drum.
[0014]
In this way, as an automatic molding machine for tire molding machines, the table that can be lifted and lowered with a cutting means and a plurality of locations on the upper surface of the cylindrical film material are adsorbed, suspended and molded in a cylindrical shape A suction holding means that can be moved up and down to a nearby position on the drum, and an opening and closing that penetrates into the cylindrical film material that is opened in a cylindrical shape by this suction holding means and expands into a circular state at least larger than the diameter of the forming drum It is possible to automate all insertion operations from the supply of cylindrical resin film material folded into a sheet shape to the center position of the forming drum by configuring it with possible arc-shaped guide members etc. Thus, the cylindrical resin film material can be efficiently transported without causing wrinkles in the cylindrical resin film material.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
[0016]
1 is a front view of a supply apparatus for carrying out the method for supplying a cylindrical resin film material of the present invention to a molding drum, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a left side view of FIG. 4 is a right side view of FIG. 1, and in this embodiment, a thermoplastic resin film material (in this embodiment, a film material having a thickness of 0.01 mm to 0.5 mm made of a thermoplastic elastomer composition) is used as an extruder. A case will be described in which a cylindrical film material W formed into a cylindrical shape is used as an inner liner of a tire in a tire molding machine.
[0017]
The supply device folds a cylindrical film material W formed by an extruder or the like into a sheet and winds it on a roll 1, and a movable roll carriage 2 on which the roll is placed and a roll roll 2. Delivery guide means 3 for sequentially feeding the cylindrical film material W that has been delivered while maintaining a predetermined tension, and cutting means 4 for cutting the cylindrical film material W delivered from the delivery guide means 3 to a predetermined length. A table 5 having a height and a position near the molding drum 6 in a state of adsorbing a plurality of portions on the upper surface of the cylindrical film material Wa cut into a fixed length on the table 5 and suspending and opening the cylindrical film material Wa The suction holding means 7 that can be moved up and down, and the suction holding means 7 penetrates into the cylindrical film material Wa that is opened in a cylindrical shape, and is at least a circular shape that is at least the outer diameter of the forming drum 6. It is composed of a pair closing possible that expanded to state the arc-shaped guide member 8.
[0018]
As shown in FIGS. 1 and 3, the movable roll carriage 2 on which the roll 1 is rotatably mounted has the roll 1 rotatable on a carriage 10 having wheels 9 at four corners via bearings 11. A roll shaft 12 to be supported is disposed horizontally, and handles 13 are provided at both ends of the roll shaft 12.
[0019]
Further, as shown in FIG. 1, the delivery guide means 3 for the cylindrical film material W is provided with a support base 14 provided with wheels 14 a and stoppers 14 b on the side surface of the carriage 10, and stands on the support base 14. A driving roller 17, a plurality of guide rollers 18, and a timing belt 19 that are rotationally driven by a driving motor 16 are attached to one side surface of the support frame 15 provided, and a cylindrical film material W is fed to the other side surface. A tension adjusting means 20 such as a festoon for adjusting the tension is provided.
[0020]
Further, as shown in FIGS. 4 to 8, the table 5 installed on the side portion of the delivery guide means 3 is installed horizontally on the table frame 21 via the elevating cylinder 22. A positioning cylinder 23 is horizontally mounted on one end side (the right side in FIGS. 1, 5 and 6). A rod 23a at the tip of the positioning cylinder 23 has a positioning plate 24 of a cylindrical film material W and a cylinder. A fixing means 25 comprising a fixing plate 25a and a fixing cylinder 25b for fixing the tip of the film material W is attached.
[0021]
Further, on the other end side of the table 5 (left side in FIGS. 1, 5 and 6), a guide roll 26 for feeding the cylindrical film material W supplied via the tension adjusting means 20 and the like onto the table 5, A pinch roll 27 is attached to the center of the table 5, and a material feeding device 28 that clamps the tip of the cylindrical film material W and transfers it to the position of the positioning plate 24 along the table 5, and the cylindrical film The cutting means 4 for cutting the material W into a predetermined length is attached.
[0022]
In the material feeding device 28, a gate-shaped moving frame 30 is movably mounted on guide rails 29a and 29b laid in parallel on the table frames 21 on both sides of the table 5, and the moving frame 30 is movable. It is configured to slide on the guide rails 29a and 29b via the moving cylinder 31.
[0023]
On the moving frame 30, as shown in FIG. 9, a clamp means 31 comprising a clamp base 31 a and a clamp cylinder 31 b for clamping both sides of the cylindrical film material W is installed, and on the side of the clamp means 31. As shown in FIG. 10, the cutting means 4 which moves along the width direction of the table 5 and cuts the cylindrical film material W pressed by the clamp means 31 into a predetermined length is installed.
[0024]
The cutting means 4 includes a plate-like cutter 33 that moves along the cutting guide 32, a rodless cylinder 34 that moves the cutter 33 along the cutting guide 32 at a predetermined speed, and the like. A cutter holder 35 is detachably attached to a cutter holder 35 that moves along the guide 32. Reference numeral 36 denotes a cutter pressing cylinder.
[0025]
Next, the adsorption holding means for adsorbing a plurality of portions on the upper surface of the cylindrical film material Wa cut into a fixed length on the table 5 and lifting it up to a nearby position on the forming drum 6 while being hung and opened in a cylindrical shape 7 and the pair of arcuate guide members 8 are attached to the two support columns 40a and 40b erected on the back side of the table frame 21 through the guide rail 41 and the rodless cylinder 42. A guide frame 43 is installed horizontally, and suction holding means 7 is attached to the guide rail 44 laid on the guide frame 43 as shown in FIGS. 1 to 3, 12, and 13.
[0026]
As shown in the perspective views of FIGS. 12 and 13, the suction holding means 7 is located at the center in the longitudinal direction of the cut cylindrical film material Wa on the base plate 7 </ b> A that is slidably engaged with the guide rail 44. A plate 45 and a pair of left and right swing plates 46a and 46b which are swingably connected to both sides thereof are attached, and the base plate 7A can be reciprocated along the guide rail 44 via an electric cylinder 47. Yes.
[0027]
The center plate 45 and the pair of left and right swing plates 46a and 46b are divided into three parts in the longitudinal direction, and the distance between the center plate 45 and the pair of left and right swing plates can be adjusted via a cylinder 48. 46a and 46b are comprised so that it can rock | fluctuate up and down via the rocking | cylinder cylinder etc. which are not shown in figure.
[0028]
The lower surface of the center plate 45 and the lower surfaces of the pair of left and right swing plates 46a and 46b adsorb a plurality of locations on the upper surface of the cylindrical film material Wa (in this embodiment, a total of 9 locations on the left and right and front and rear three locations). Adsorption members 49 such as a vacuum pad are attached, and these adsorption members 49 are connected to a vacuum pump (not shown) via a pipe 50 and simultaneously hold a plurality of locations while holding the cut cylindrical film material Wa in an arc shape. It is configured so that it can be adsorbed or released.
[0029]
FIGS. 16 and 17 are explanatory views showing the operating state of the suction holding means 7, and a plurality of places (9 places in this embodiment) on the upper surface of the cylindrical film material Wa cut in a fixed length on the table 5. When the center plate 45 in the horizontal state and the nine suction members 49 provided on the pair of left and right swing plates 46a and 46b are sucked and held and moved up to the top of the forming drum 6 along the columns 40a and 40b, the left and right Only a pair of swing plates 46a, 46b are inclined at a predetermined angle to form a cylindrical film material Wa into a cylindrical shape, and after this state, a pair of openable and closable later described on the upper inner surface side of the cylindrical film material Wa. An arcuate guide member 8 composed of guide members 55a and 55b is inserted and held.
[0030]
Further, the arcuate guide member 8 has one end of the guide frame 51 of the arcuate guide member 8 supported horizontally at the upper end of the support column 40b, and a cylinder 53 is attached to the guide rail 52 laid on the guide frame 51. A support frame 54 is suspended through the gap.
[0031]
The support frame 54 has a pair of guide members 55a and 55b that are not less than the length in the longitudinal direction of the cylindrical film material Wa to be cut and are formed in an arc shape (a shape obtained by dividing 180 ° into two). The pair of guide members 55a and 55b are configured in a mesh shape with a light metal material such as punching metal, a resin material, or the like, and the center portions of the upper surfaces of both members are connected by a connecting shaft 56 so as to be opened and closed. .
[0032]
The pair of guide members 55a and 55b swing around the connecting shaft 56, and are configured to open and close around the connecting shaft 56 by a link expansion / contraction mechanism 57 as shown in FIGS. Yes. As shown in the figure, the link expansion / contraction mechanism 57 includes one end of a link 59a, 59b rotatably connected to a lower end portion 58 of a guide member 55a, 55b via a pin 60a, 60b, and the other end of the link 59a, 59b. Is fixed to the connecting member 61.
[0033]
One end of an operating rod 62 is vertically connected to the connecting member 61, and the other end of the operating rod 62 is connected to an operating cylinder 64 attached to a vertical guide frame 63. Therefore, when the operation cylinder 64 is expanded and contracted, the guide members 55a and 55b are opened and closed with the connecting shaft 56 as a fulcrum via the links 59a and 59b, and the upper part of the inner surface of the cylindrical film material Wa can be expanded in an arc shape. Is.
[0034]
In addition, the pair of guide members 55a and 55b formed in the arc shape expands at least to the diameter of the forming drum 6 when the diameter is expanded, and when guiding the cylindrical film material Wa to the forming drum 6 side, The guide members 55a and 55b move to the forming drum 6 side along the guide rails 52 laid on the guide frame 51, and the end portions of the guide members 55a and 55b are fitted on the insertion end of the forming drum 6 so that they are thin and have a thin cylindrical shape. The film material Wa does not become wrinkles, and can be smoothly guided without dropping in the gaps between the guide members 55a, 55b and the forming drum 6.
[0035]
Next, a method for supplying the cylindrical resin film material W of the present invention to the forming drum 6 will be described with reference to FIGS.
[0036]
First, the cylindrical film material W unwound from the roll 1 on the roll carriage 2 is sequentially sent out to the table 5 while maintaining a predetermined tension by the delivery guide means 3, and the positioning plate 24 and the fixed plate are placed on the table 5. After positioning to a predetermined length by 25a and a fixed cylinder 25b, the cutter 33 of the cutting means 4 is cut to a predetermined length while the rear end side is fixed by the fixing means 25.
[0037]
Next, as shown in FIGS. 18 (a) and 18 (b), the center plate 45 and the pair of left and right swing plates 46a that are in a horizontal state with respect to the cylindrical film material Wa that has been cut on the table 5 in a fixed size. , 46b is lowered along the support columns 40a, 40b, and a plurality of positions on the upper surface of the cylindrical film material Wa are provided on the center plate 45 and the pair of left and right swing plates 46a, 46b. The suction member 49 is sucked and held.
[0038]
In this state, as shown in FIG. 18 (c), the suction holding means 7 is lifted up onto the forming drum 6 along the columns 40a and 40b, and the cylindrical film material Wa folded into a sheet is formed into a cylindrical body. Further, the cylindrical film material Wa is formed into a cylindrical shape by tilting only the pair of left and right swing plates 46a and 46b at a predetermined angle.
[0039]
From such a state, as shown in FIG. 18D, a pair of arcuate guide members 8 formed in an arcuate shape (a shape obtained by dividing 180 ° into two) on the upper inner surface side of the cylindrical film material Wa. The guide members 55a and 55b are inserted, and the pair of guide members 55a and 55b are expanded in a circular arc shape via the link expansion / contraction mechanism 57 to support the upper inner surface side of the cylindrical film material Wa.
[0040]
From this state, the suction holding means 7 and the arcuate guide member 8 are moved to the vicinity of one end of the forming drum 6, and the suction holding means 7 is formed in a cylindrical shape as shown in FIG. The cylindrical film material Wa is moved onto the forming drum 6 while being held, and the adsorption holding state of the cylindrical film material Wa is released at the center position of the forming drum 6. Then, as shown in FIG. 18 (f), the cylindrical film material Wa is in a state of being fitted while being positioned at the center position of the forming drum 6.
[0041]
Thereafter, the suction holding means 7 and the arcuate guide member 8 move to the base standby position, and stand by in the suction holding state of the cylindrical film material Wa to be conveyed next.
[0042]
In addition, in the insertion process of the cylindrical film material Wa as described above, if the tip portions of the pair of guide members 55a and 55b of the arcuate guide member 8 are covered with the end portions of the forming drum 6, the arcuate shape There is no gap between the guide member 8 and the end portion of the forming drum 6, and when the cylindrical film material Wa is transported onto the forming drum 6 while being held by the suction holding means 7, the cylindrical film material Wa is loosened or wrinkled. It can be smoothly transported and transferred without generating any.
[0043]
Since the cylindrical resin film material Wa can be transferred and transferred to the center position of the molding drum 6 by the above-described method, the cylindrical film material W made of a thin cylindrical resin film material having no rigidity is wrinkled. It does not occur, and can be automatically inserted into the center position of the forming drum 6.
[0044]
【The invention's effect】
In the present invention, the cylindrical film material is unwound from the roll wound with the cylindrical film material as described above via the feed guide means, and the unwound cylindrical film material is cut by a cutting means on a table that can be raised and lowered. Cut into a predetermined length, and the upper surface of the cut cylindrical film material is sucked and held by a plurality of sucking and holding means, and is opened in a cylindrical shape and raised to a nearby position on the forming drum, and then opened into the cylindrical shape. A pair of arcuate guide members that are disposed on the axis of the forming drum and that can be opened and closed are inserted into the cylindrical film material in a state in which the cylindrical film material is opened. The cylindrical drum material is expanded to a circular state at least larger than the diameter of the forming drum, and in this state is sucked and held by the suction holding means. Because it is inserted and transferred to the center position, it can be automatically inserted into the center position of the molding drum without generating wrinkles in the cylindrical film material made of a thin cylindrical resin film material without rigidity, There is an effect that workability and productivity can be improved.
[0045]
The apparatus for supplying a cylindrical resin film material to a forming drum according to the present invention includes a roll carriage on which a roll obtained by folding and winding a cylindrical thermoplastic resin film material into a sheet is rotatably mounted, and a roll carriage A feed guide means for sequentially feeding the cylindrical film material unwound from the feed guide means while maintaining a predetermined tension; and a cutting means for cutting the cylindrical film material fed from the feed guide means into a predetermined length. A table that can be moved up and down and a plurality of portions on the upper surface of the cylindrical film material that has been cut into a fixed length on the table are sucked and lifted up and down to a nearby position on the forming drum while being opened in a cylindrical shape. A holding means and an opening that penetrates into the cylindrical film material that is opened in a cylindrical shape by the suction holding means and expands into a circular state at least larger than the diameter of the forming drum. Since the suction holding means and the arcuate guide member are configured to be horizontally movable in the axial direction of the molding drum, the cylindrical resin film material folded into a sheet shape is formed. It is possible to automate all insertion operations from supply to standard cutting to the center position of the molding drum, and to efficiently transport cylindrical resin film material without generating wrinkles in the cylindrical resin film material. There is an effect that can be done.
[Brief description of the drawings]
FIG. 1 is a front view of a supply apparatus for carrying out a method for supplying a cylindrical resin film material to a forming drum according to the present invention.
2 is a plan view of FIG. 1. FIG.
FIG. 3 is a left side view of FIG. 1;
4 is a right side view of FIG. 1. FIG.
FIG. 5 is an enlarged front view of a table in the cylindrical resin film material supply apparatus.
6 is a plan view of FIG. 5. FIG.
7 is a right side view of FIG. 5. FIG.
8 is a left side view of FIG.
FIG. 9 is an enlarged front view of clamp means installed on the table.
FIG. 10 is an enlarged plan view of cutting means installed on the table.
FIG. 11 is a partially enlarged front view of a table supported by a table frame.
FIG. 12 is a perspective view from one side of a cylindrical film material suction-holding means and an arcuate guide member.
FIG. 13 is a perspective view from the other side of the suction holding means for the cylindrical film material and the arcuate guide member.
FIG. 14 is an explanatory diagram of a link expansion / contraction mechanism that opens and closes a guide member of an arcuate guide member.
FIG. 15 is an explanatory diagram of a link expansion / contraction mechanism that opens and closes a guide member of an arcuate guide member.
FIG. 16 is an explanatory view showing an operating state of the adsorption holding means for the cylindrical film material.
FIG. 17 is an explanatory view showing the operating state of the adsorption holding means for the cylindrical film material.
FIGS. 18A to 18F are process explanatory views of a process of transporting a cylindrical resin film material that has been cut to a fixed length to a molding drum; FIGS.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Roll 2 Roll cart 3 Feeding guide means 4 Cutting means 5 Table 6 Molding drum 7 Adsorption holding means 8 Arc-shaped guide member 9 Wheel 10 Cart 11 Bearing 12 Roll shaft 13 Handle 14a Wheel 14b Stopper 14 Support base 15 Support frame 16 Drive motor 17 Driving roller 18 Guide roller 19 Timing belt 20 Tension adjusting means 21 Table frame 22 Lifting cylinder 23 Positioning cylinder 23a Rod 24 Positioning plate 25 Fixing means 25a Fixed plate 25b Fixed cylinder 26 Guide roll 27 Pinch roll 28 Material feeding device 29a, 29b Guide Rail 30 Moving frame 31 Moving cylinder 32 Cutting guide 33 Cutter 34 Rodless cylinder 35 Cutter holder 36 Cutter presser cylinder 40a, 40b Post 41 Guide rail 42 Rodless cylinder 43 Guide frame 44 Guide rail 45 Center plate 46a, 46b Swing plate 47 Electric cylinder 7A Base plate 48 Cylinder 49 Adsorption member 50 Piping 51 Guide frame 52 Guide rail 53 Cylinder 54 Support frame 55a , 55b Guide member 56 Connection shaft 57 Link expansion / contraction mechanism 58 Lower end 59a, 59b Link 60a, 60b Pin 61 Connection member 62 Operation rod 63 Guide frame 64 Operation cylinder W Cylindrical film material Wa Fixed length cut cylindrical film material

Claims (6)

The cylindrical film material is unwound from a roll wound with the cylindrical film material through a delivery guide means, and the unwound cylindrical film material is cut into a predetermined length by a cutting means on a table that can be raised and lowered, The upper surface of the cut cylindrical film material is adsorbed and held by a plurality of adsorbing and holding means and raised to a position near the molding drum while being opened in a cylindrical shape. A pair of arcuate guide members disposed on the axis of the forming drum and capable of opening and closing are inserted, and the arcuate guide members are expanded in diameter so that the cylindrical film material has a circular state at least equal to or larger than the forming drum diameter. In this state, the cylindrical film material sucked and held by the suction holding means is inserted and transferred to the center position of the forming drum using an arc guide member as a guide. Method of supplying to the forming drum that the cylindrical resin film material. When the cylindrical film material sucked and held by the suction holding means is inserted into the molding drum, the end of the arcuate guide member is fitted to the insertion end of the molding drum, and in this state the cylindrical shape held by suction holding by the suction holding means The method for supplying a cylindrical resin film material to a molding drum according to claim 1, wherein the film material is inserted and transferred to a center position of the molding drum. A roll trolley on which a roll of a cylindrical thermoplastic resin film material folded into a sheet is rotatably placed, and the cylindrical film material unwound from the roll trolley in a state of maintaining a predetermined tension. A feeding guide means for feeding, a table capable of being lifted and lowered with a cutting means for cutting the cylindrical film material fed from the feeding guide means into a predetermined length, and a cylindrical film material cut into a fixed length on the table. Adsorption holding means that can be lifted and lowered to adsorb a plurality of locations on the upper surface and hang up and open in a cylindrical shape to a nearby position on the forming drum, and a cylindrical film that is opened in a cylindrical shape by this adsorption holding means And a pair of arcuate guide members that can be opened and closed and penetrates into the material and expands into a circular state at least larger than the diameter of the forming drum. Feeder to the forming drum of the cylindrical resin film material which the guide member in the axial direction of the forming drum, characterized in that the horizontally movable configuration. The suction holding means comprises a center plate located in the center of the cylindrical film material in the longitudinal direction, and a pair of left and right swing plates that are swingably connected to both sides of the center plate. The apparatus for supplying a cylindrical resin film material to a molding drum according to claim 3, wherein an adsorption member for adsorbing a plurality of locations on the upper surface of the cylindrical film material is provided on the lower surface of the swing plate. The arcuate guide member is constituted by a pair of guide members formed in an arc shape having a length equal to or longer than the longitudinal direction of the cylindrical film material to be cut, and the pair of guide members is formed by a connecting shaft at the center of the upper surface. The apparatus for supplying a cylindrical resin film material to a forming drum according to claim 3 or 4, wherein the apparatus is connected so as to be openable and closable, and is configured to be opened and closed by a link type expansion / contraction mechanism around the connecting shaft. The pair of guide members formed in the arc shape expands at least larger than the diameter of the forming drum when the diameter is increased, and when guiding the cylindrical film material to the forming drum side, the end portions of the pair of guide members are formed on the forming drum. The apparatus for supplying a cylindrical resin film material to a molding drum according to claim 5, wherein the cylindrical resin film material is configured to fit over the insertion end of the cylindrical resin film.

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