JPH04306392A - Net stretching method for netted door and device thereof - Google Patents

Abstract

PURPOSE:To promote work efficiency and to reduce a manufacturing cost by providing a positioning means of a sash frame, a net adhering means, a bread positioning means, a bead drawing-out means and a bead guidance means. CONSTITUTION:After a net N is fixed to a mounting base 1, a sash frame 8 is inserted between the mounting base 1 and the net N, positioning is made with stoppers 11, 11a, 11b and 11c. After that, positions are so set that bead stopper guides 62 correspond to the insides of corners in a loading channel 81 of the frame 8. Then, after a bead B is wrapped over the tread stopper guides 62 with a guide chain and clampers 21, the net N is tensed with a net holding bar 19 to adhere to the frame 8. Successively, the bead B is fitted into the loading channel 81 together with the net N with a bead pushing piece and a push roller. The net N on the front side of the net holding bar 19 and the bead B are cut off with a cutter 32 at a time. In addition, the fixation of the frame 8 to the net N is released, and the frame 8 is pushed forward with a push-out plate in a state to connect the net N to the rear of the frame 8.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for installing a screen on a screen door.

0002

2. Description of the Related Art Screen doors, which allow outside air to enter the room while preventing insects from entering the room, are widely used in houses and the like. The general structure of a screen door is a frame made of aluminum sash, etc., with a fine mesh stretched over it, and the screen is usually attached to the frame along the inner edge of the frame. This is done by placing a net over the groove, and then pushing a rubber bead into the groove so that the net is sandwiched between the nets. Previously, all of the netting work was done by hand.

0003

[Problem to be solved by the invention] However, manually stretching the screen door net takes a lot of effort and increases manufacturing costs such as labor costs. Automation was desired.

0004

[Means for Solving the Problems] The means of the present invention taken to solve the above problems are as follows. In the first invention, a the net is fixed, the sash frame is positioned on the back side of the net and positioned by the positioning means, and the bead fitting means is placed in correspondence with each corner of the b sash frame. Set the position, feed and guide the bead from the c bead feeding mechanism, wrap the bead around the bead positioning means of the bead fitting means whose outer corner is located inside the mounting groove of the sash frame, and The net is appropriately tensioned by the close contact means and brought into close contact with the sash frame, and the bead pressing means of the e-bead fitting means;
Fit the bead together with the net into the mounting groove of the sash frame using the pressure roller, f cut the net and bead on the front side of the sash frame using the cutting means, g release the fixation between the sash frame and the net, and insert the net at the rear of the sash frame. In this screen door netting method, the sash frame is sent forward by a pushing means while still connected, and the netting is stretched by repeating the steps a to g above. In the second invention, (a) a base on which the sash frame is placed;
b) positioning means for setting the position of the sash frame;
(d) net contact means for bringing the net into close contact with the front side of the sash frame; (e) bead positioning means for wrapping the beads and bead pressing for pushing the beads into the mounting grooves of the sash frame. (f) bead feeding means for feeding out the beads; (g) bead guiding means for winding the fed beads around the bead positioning means;
h) A cutting device for cutting the net and bead at the front of the sash frame in the feeding direction after the netting has been set; (i) A feeding device for feeding the sash frame.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in more detail based on embodiments shown in the drawings. FIG. 1 is a schematic front view showing one embodiment of the netting machine, FIG. 2 is a schematic plan view, and FIG. 3 is a schematic perspective view showing the structure of the upper part of the netting machine. Reference numeral A is a netting device, which is provided with a frame F. At the middle part of the frame F, a mounting table 1 is provided, which is a platform on which the sash frame is placed and fixed. A running groove 10 is provided in the center of the mounting table 1. Running groove 1
The base side of 0 is open, and the tip side is closed near the front of the mounting table 1. The mounting table 1 is provided with stoppers 11, 11a, 11b, and 11c, a pushing plate 12, and a pressing plate 13, which are means for positioning the sash frame. Stoppers 11 and 11a are provided on both sides of the leading end of the running groove 10, and stoppers 11b and 11c are provided on the inner side of the running groove 10. The stoppers 11 and 11a move up and down in three stages, and their heights are adjusted. The height of each stage is (1) lower than the surface of the mounting table 1, (2) protruding from the surface of the mounting table 1 to a height slightly lower than the thickness of the sash frame, and (3) extending from the surface of the mounting table 1 to the sash frame. Protruding higher than the thickness, it is set as follows. The running groove 10 is provided with a movable extrusion plate 12 which is a feeding means for feeding out the sash frame. Inside the running groove 10, a rodless cylinder S1 is disposed over almost the entire length, and the extrusion plate 12 is attached to the running body of the rodless cylinder S1. The extrusion plate 12 is
It is positioned slightly above the surface of the mounting table 1, and the tip of the extrusion plate 12 is formed to a thickness that allows it to be fitted into a circumferential groove of a sash frame that is placed and fixed on the mounting table 1. Further, on one side (front side) of the surface of the mounting table 1, a press plate 13 is provided which is movable back and forth toward the running groove 10 side. The tip end of the pressing plate 13 is also formed in a thickness that allows it to be fitted into the circumferential groove of the sash frame, similarly to the pushing plate 12. The press plate 13 has a structure in which a screw rod 14 provided at the bottom of the mounting table 1 is rotated by a geared motor M1 equipped with a torque keeper, and the press plate 13 is moved using the spiral feed. Stopper 11
, 11a are provided with a net presser bar 19 on the front side. The net holding bar 19 is attached to the frame F, and is raised and lowered by an air cylinder AS4, and is pressed onto the mounting table 1 to sandwich and fix the net. Net holding bar 1 on mounting table 1
A cutter groove 31 and a cutter 32, which serve as cutting means, are provided further forward of the cutter 9. A rodless cylinder S2 (shown in FIG. 1) is disposed below the cutter groove 31, and the running body of this rodless cylinder S2 has a cutting edge of M
A cutter 32 formed in a mold is provided, and the rodless cylinder S2 and cutter 32 can be raised and lowered by an air cylinder AS7 (shown in FIG. 2). The cutting edge of the cutter 32 protrudes above the mounting table 1 from the cutter groove 31 when raised, and can cut the net and beads by moving along the cutter groove 31. At the rear of frame F,
A rear frame F1 is provided. A net drum D1 serving as a net supply means is pivotally supported at the rearmost portion of the rear frame F1. A rectangular threading frame 15 is provided in front of the net drum D1, and a mesh presser bar 16 that is raised and lowered by an air cylinder AS1 is provided within the threading frame 15. On the rear frame F1 in front of the through frame 15, there is a tension roller 17 that is raised and lowered by two air cylinders AS2 to adjust the tension of the net.
is provided. A mesh adhering means for bringing the mesh into close contact with the front side of the sash frame is constituted by this tension roller 17 and the mesh presser bars 16 and 19. Further in front of the tension roller 17, an elevating roller 18 is provided which is moved up and down by an air cylinder AS3. In front of the frame F, a payout table 33 is arranged to send out products made by covering a sash frame with a net. A through frame 34 is provided at the rear of the dispensing table 33, through which the delivered product is passed.
A product holding bar 35 is attached to the air cylinder AS in the through frame 34.
5, it is attached so that it can be raised and lowered freely. The bead guiding means is composed of a guiding chain C and a clamper 21. The frame F has four supports H. Frame F
Two-stage sprockets 20 are arranged at four locations inside each support column H at positions slightly higher than the mounting table 1, and a guide chain C is endlessly wound around each two-stage sprocket 20 in upper and lower stages. It's hanging. The induction chain C is driven by a geared motor (not shown). A clamper 21 (shown in FIG. 3) that grips the bead B is attached to the guide chain C. The clamper 21 is attached so that the attachment rod 210 is passed vertically to the upper and lower chains so as not to swing. The clamp part of the clamper 21 has a fixed claw 211
The structure is such that the rotating claw 212 is compressed and clamped by a tension spring 213, and the rotating claw 212 is rotated and opened by pushing up the arm piece 215 at the rear of the rotating claw 212, and the clamp is released. A side frame F2 is provided outside one side frame of the frame F. The side frame F2 is provided with a bead drum D2, which is a bead feeding means, a bead intermittent feeding device 22, and a guide member 23. Side frame F
2, a bead drum D2 on which a bead B made of rubber pipe is wound is pivotally supported by a geared motor M2 so as to rotate in the winding direction. In addition, bead drum D
2 allows free rotation by disengaging the clutch. A bead feeding device 22 is provided in front of the frame F side of the bead drum D2. The bead feeding device 22 includes a case 220, and an insertion hole 222 through which the bead B is inserted in the horizontal direction is provided in the center. Inside the case 220, a driving roller 223 whose axial direction is vertical is provided. The drive roller 223 is rotated in the direction in which the bead B is fed out by a geared motor (not shown). Drive roller 223
A nipping roller 224 is provided to face each other. The nipping roller 224 is reciprocated toward the drive roller 223 by the air cylinder AS11. The bead B inserted into the insertion hole 222 is drawn out when it is held between the drive roller 223 and the holding roller 224 by the movement of the holding roller 224, and becomes free when the holding is released. A guide member 23 is disposed between the bead feeding device 22 and the frame F and is movable up and down. The bead B drawn out from the insertion hole 222 is
It passes through a guide hole 231 provided in the guide member 23 and is guided to the clamp portion of the clamper 21, which is previously stopped at a predetermined position. A push-up piece 230 (shown in FIG. 7) for pushing up the arm piece 215 of the clamper 21 is provided on the mounting table 1 adjacent to the guide member 23. The push-up piece 230 is raised and lowered by an air cylinder (not shown). A movable frame device 4 is provided at the upper part of the frame F to make the fitting mechanism of the bead B correspond to the size of the sash frame. The moving frame device 4 has underframes F4 and F5 provided at the front and rear of the upper part of the frame F. A reference frame F6 is constructed and fixed above the underframes F4 and F5. On both sides of the upper part of the frame F, there is a side frame F9 that is slightly lower than the underframe F4 and F5.
, F10 are provided. A movable horizontal frame F7 is installed on the side frames F9 and F10 so as to be movable within a certain range. Rail plates R1 and R2 of required length are provided on the rear sides of both side frames F9 and F10. The movable horizontal frame F7 is mounted to be movable by mounting rollers provided on the bottom of both ends thereof. Among the underframes F4 and F5, a screw rod 41 is rotatably supported below the reference frame F6 substantially along the reference frame F6. The threaded rod 41 is interlocked with a handle 42 provided on the front underframe F5 via a chain and a sprocket. A threaded portion 410 is formed on the rear side of the threaded rod 41 over a required length. A screw guide 43 is provided on the bottom side of the movable horizontal frame F7 at a position corresponding to the screw rod 41.
10 is screwed into a screw guide 43. According to this structure, the threaded rod 41 is rotated by turning the handle 41, and the moving horizontal frame F7 is rotated by the feeding action of the threaded portion 410.
can be moved back and forth. On the underframes F4 and F5, a movable vertical frame F8 is movable within a certain range, and a reference frame F6 is attached to the underframes F4 and F5.
It is installed parallel to the Rail plates R3 and R4 of a required length are provided near one side of the underframes F4 and F5. The movable vertical frame F8 is mounted with rollers provided at the bottom of both ends thereof. A threaded rod 44 is rotatably supported on the front side of the side frames F9 and F10 at right angles to the reference frame F6. The threaded rod 44 is interlocked with a handle 45 provided on the side frame F10 via a chain and a sprocket. A threaded portion 440 is formed approximately in the middle of the threaded rod 44 over a required length. Moving vertical frame F8
A screw guide 46 is provided on the bottom side at a position corresponding to the screw rod 44, and the screw portion 440 is screwed into the screw guide 46. According to this structure, the threaded rod 44 is rotated by turning the handle 45, and the moving vertical frame F8 can be moved laterally by the feeding action of the threaded portion 440. A movable table 47 is provided on the movable horizontal frame F7 so as to be movable within a certain range. The movable table 47 is formed to surround the movable horizontal frame F7, and has rollers mounted on a rail plate R5 provided on the movable horizontal frame F7. Rail plates R6 are provided on both sides of the movable vertical frame F8 corresponding to the movement range of the movable table 47. A guide roller 470 is provided at the top of the moving table 47 and comes into contact with both rail plates R6 in between. With this structure, the moving table 47
is always located at the intersection of the moving vertical frame F8 and the moving horizontal frame F7. Rodless cylinders S3, S4, S5, and S6 for moving a pressing roller 52, which will be described later, are arranged on the frame F, the movable horizontal frame F7, and the movable vertical frame F8. The rodless cylinder S3 is provided below the front underframe F5, slightly protruding inward and parallel to the underframe F5. The height of the rodless cylinder S3 is set to approximately the same height as the guide chain C. An arm body 51 projecting inward is provided on the traveling body 50 of the rodless cylinder S3 so as to be movable up and down by an air cylinder AS8, and a pressing roller 52a is attached to the tip of the arm body 51. The pressing portion of the pressing roller 52a is formed to be slightly thinner than the groove width of the mounting groove of the sash frame so that it does not get in the way when the bead B is fitted into the mounting groove. The rodless cylinder S4 is provided below the side frame F9, slightly protruding inward and parallel to the side frame F9. The height of rodless cylinder S4 is the same as that of rodless cylinder S3.
It is set slightly higher. Rodless cylinder S4
A pressing roller 52b having a similar structure is also attached to the traveling body 50. The rodless cylinder S5 has a movable horizontal frame F
The support frame 53 is provided vertically under the movable horizontal frame F7, extending slightly toward the rear and parallel to the movable horizontal frame F7. The installation height of the rodless cylinder S5 is approximately the same as that of the rodless cylinder S3. A pressing roller 52c having a similar structure is also provided on the traveling body 50 of the rodless cylinder S5. The rodless cylinder S6 is provided in parallel below the movable vertical frame F8, extending outward from the movable vertical frame F8, by an L-shaped beam frame 55 provided on the movable vertical frame F8. The installation height of the rodless cylinder S6 is approximately the same as that of the rodless cylinder S4. A pressing roller 52d having a similar structure is also provided on the traveling body 50 of the rodless cylinder S6. Reference frame F6, moving horizontal frame F7, moving base 4
7 and the movable vertical frame F8 are bead fitting devices 6a and 6b that fit the beads B into the mounting grooves of the sash frame to mount the net.
, 6c, and 6d are provided. The bead fitting means is composed of these bead fitting devices 6a, 6b, 6c, and 6d and the aforementioned pressing rollers 52a, 52b, 52c, and 52d. The bead fitting device 6a is installed at the lower part of the support frame 54 vertically installed on the front side of the reference frame F6 so as to be located above the stopper 11a. Fig. 4 is a front view showing the structure of the bead fitting device, Fig. 5 is an explanatory diagram showing the structure of the bead stopper guide and bead pressing piece of the bead fitting device (6a) at the bead pressing starting point, and Fig. 6 is an explanatory view showing the structure of the bead fitting device (6a) at the bead pressing start point. FIG. 6 is an explanatory diagram showing the structure of a bead stopper guide and a bead pressing piece of the device (6b is shown). Bead fitting device 6
a has a base plate 61, and two air cylinders AS9 and AS10 are provided on the base plate 61. A bead stopper guide 62, which is a bead positioning means and has a square cross section, is attached to the lower part of the base plate 61 and is raised and lowered by an air cylinder AS9. In addition, the bead stopper guide 62
A flat pressing piece 63, which is a bead pressing means, is provided on the front side surface of the air cylinder AS10 and is raised and lowered by the air cylinder AS10. A bead cutter 64 is provided on the pressing piece 63 and slightly protrudes toward the bead drum D2 side. The bead fitting device 6b is provided at approximately the same height as the bead fitting device 6a at the lower part of the support frame 54 which is vertically installed at a position intersecting the reference frame F6 at the bottom of the movable horizontal frame F7. The pressing piece 65 of the bead fitting device 6b is different from the pressing piece 63 of the bead fitting device 6a, and is formed in the shape of an L plate that contacts the side surface of the outer corner of the bead stopper guide 62. Since the structure of other parts is almost the same as that of the bead fitting device 6a, the same reference numerals are given in the drawings, and the explanation will be omitted. The bead fitting device 6c is attached to the support frame 5 vertically disposed at the bottom of the movable table 47, which is always located at the intersection of the movable horizontal frame F7 and the movable vertical frame F8.
4, at approximately the same height as the bead fitting device 6a. The bead fitting device 6d is provided at approximately the same height as the bead fitting device 6a at the lower part of the support frame 54 which is vertically installed at the bottom of the movable vertical frame F8 at a position corresponding to the bead fitting device 6a. . Note that the structures of the bead fitting devices 6c and 6d are the same as the structure of the bead fitting device 6b, so a description thereof will be omitted. (Function) FIG. 7 is a schematic explanatory diagram of the process of winding the bead around the bead stopper guide. The operation of this embodiment will be explained with reference to FIGS. 1 to 7. (1) Manually pull out the net N and place it on the dispensing table 3.
One end of the net N is temporarily fixed with the product holding bar 35 of No. 3. At this time, the net N is passed under the net presser bar 16, and from the underside of the tension roller 17 to the upper side of the lifting roller 18. Then, the stoppers 11 and 11a of the mounting table 1 are raised to the upper stage, and the rear lifting roller 18 is raised to form a gap between the mounting table 1 and the net N into which the sash frame 8 is inserted. (2) Insert the sash frame 8 so that the mounting groove 81 is on the top side, press the front side against the inner surfaces of the stoppers 11 and 11a, and press the back side against the stoppers 11b and 11c, and place it on the mounting table 1. Place it. Next, the press plate 13 and the extrusion plate 12 are moved to the sash frame 8 side, the tips are fitted into the circumferential groove of the sash frame 8, and the sash frame 8 is moved to the press plate 13 and the extrusion plate 1, and the stoppers 11, 11a, 11b, 11c to determine the position of the sash frame 8. (3) Move the horizontal frame F7 by turning the handles 42 and 45.
and moving the moving vertical frame F8, bead fitting device 6b,
The positions of the bead stopper guides 62 6c and 6d are set so as to correspond to the inside of each corner of the mounting groove 81 of the sash frame 8. At the same time, pressure rollers 52c and 52d (press roller 5
2a and 52b are positioned correspondingly from the beginning. ) is also set above the mounting groove 81 of the sash frame 8. (4) Each bead fitting device 6a, 6b, 6c, 6d
The bead stopper guides 62 are lowered to a position where their respective lower ends substantially touch the inner surfaces of the respective corners of the mounting grooves 81 of the sash frame 8. (5) The clamper 21 is located on the front side of the guide member 23. Then, raise the push-up piece 230,
Push up the arm piece 215 of the clamper 21 and rotate the rotating claw 2.
Open 12. Then, the clutch of the bead drum D2 is disengaged to allow free rotation, the drive roller 223 of the bead feeding device 22 is driven, and the bead B is held between the drive roller 223 and the holding roller 224, and the insertion hole 222 and the guide member 23 are inserted. The bead B is let out through the hole 231, the tip is passed through the clamp part of the clamper 21, the push-up piece 230 is lowered, the rotating claw 212 is closed, and the bead B is clamped. Then, the driving roller 223 and the pinching roller 2
The grip of bead B by 24 is released. (6) Drive the induction chain C and clamper 21
In FIG. 7, the guide chain C is moved clockwise about one-eighth of the way around the guide chain C, and the bead B is inserted into the bead insertion device 6.
Wrap it around the bead stopper guides 62 of a, 6b, 6c, and 6d. At this time, the drive roller 2 of the bead feeding device 22 is
23 is stopped, the nipping roller 224 is intermittently moved toward the drive roller 223, and stopped while nipping the bead B to adjust the feeding. After the winding is completed, the bead drum D2 is rotated in the winding direction and pulled in to tension the bead B appropriately so that there is no slack. (7) Lower the net presser bar 19 and press the net N and bead B together. Next, the stoppers 11 and 11a are lowered to the middle stage, and the lifting roller 18 is also lowered at the same time. Then, the net N is fixed by the net pressing bar 16 in front of the net drum D1, and then the tension roller 17 is lowered to tension the net N appropriately. Thereby, the net N comes into close contact with the sash frame 8. (8) First, the presser roller 52b is lowered, and the bead B is wrapped around the mounting groove 8 of the sash frame 8 in the opposite direction to the winding direction.
Insert it into 1. Next, the bead B is pressed in the order of the presser roller 52c, the presser roller 52d, and the presser roller 52a, and the bead B is mounted in the mounting groove 81 so that the net N is sandwiched therebetween. Next, the pressing pieces 63 of each bead fitting device 6a, 6b, 6c, 6d
, 65 and press the bead B at the corner again. At this time, the bead drum D2 is rotated again to draw in the excess portion of the bead B so that the base side of the bead B does not become loose. Note that when the pressing piece 63 is lowered, the pressing piece 63
The base side of the bead B is cut with a cutter 64 provided so as to protrude from the bead. When the bead B is completely fitted, the bead fitting devices 6a, 6b, 6c, and 6d and the press rollers 52a, 52b, 52c, and 52d are raised to return to their original states. (9) Raise and move the cutter 32 to cut the net N and bead B on the front side of the net presser bar 19 at the same time. Next, the cutter 32 is lowered and returned to its original position, the rear lifting roller 17 is raised to loosen the net N, and the net presser bar 1
6 and 19 to release the grip of the net N. (10) Lower the stoppers 11 and 11a from the surface of the mounting table 1 to allow the net drum D1 to rotate freely. After the pressing plate 13 is moved backward, the pushing plate 12 is moved and the sash frame 8 is sent forward. The sash frame 8 is held down and fixed by a product holding bar 35. Moreover, the extrusion plate 12 is returned to its original position. (11) Stoppers 11, 11a and lifting roller 1
8 is raised to float the net N, and the next sash frame 8 is inserted so that its two sides come into contact with the inner surfaces of the stoppers 11, 11a and the stoppers 11b, 11c, and is positioned using the press plate 13 and the extrusion plate 12. From then on, the above (2) to (11)
) is repeated to attach the net N to the sash frame 8. It should be noted that the present invention is not limited to the illustrated embodiment, and many modifications can be made within the scope of the claims.

[0006]

EFFECTS OF THE INVENTION The present invention has the above configuration and has the following effects. Most of the work of installing the screen door is automated, so
Compared to conventional manual work, tensioning can be done more efficiently and manufacturing costs can be kept low.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view showing an embodiment of a netting machine.

FIG. 2 is a schematic plan view showing an embodiment of a netting machine.

FIG. 3 is a schematic perspective view showing the structure of the upper part of the netting machine.

FIG. 4 is a front view showing the structure of the bead fitting device.

FIG. 5 is a schematic explanatory diagram showing the structure of a bead stopper guide and a bead pressing piece of a bead insertion device at a bead pressing starting point.

[Figure 6] Bead stopper guide of other bead insertion devices (
6b is a schematic explanatory diagram showing the structure of a bead pressing piece.

FIG. 7 is a schematic explanatory diagram of a process of winding a bead around a bead stopper guide.

[Explanation of symbols]

A Screen door netting device 1 Placing table 11, 11a, 11b, 11c Stopper 12 Pushing plate 13 Pressing plate D1 Net drums 16, 19 Net pressing bar 17 Tension rollers 6a, 6b, 6c, 6d Bead insertion device 62 Bead stopper guide 63 , 65 Bead pressing pieces 52a, 52b, 52c, 52d Pressing roller D2
Bead drum 22 Bead feeding device 223 Drive roller 224 Sandwiching roller C Guide chain 21 Clamper 31 Cutter groove 32 Cutter

Claims (2)

[Claims] Claim 1: (a) fixing the net and positioning the sash frame on the back side of the net using a positioning means;
(b) The position of the bead fitting means is set corresponding to each corner of the sash frame, and (c) the bead is fed out and guided from the bead feeding mechanism, so that the outer corner is located inside the mounting groove of the sash frame. Wrap the bead around the bead positioning means of the bead fitting means, tighten the net to an appropriate degree using the d-net fitting means, and bring it into close contact with the sash frame, and attach the sash frame using the bead pressing means of the e-bead fitting means and the pressing roller. Insert the bead together with the net into the groove, f cut the net and bead on the front side of the sash frame with the cutting means, g release the fixation of the sash frame and the net, and while the net is connected to the rear of the sash frame, use the pushing means A screen door netting method characterized in that the screen is stretched by sending a sash frame forward and repeating the steps a to g above. [Claim 2] (a) a base on which a sash frame is placed;
(b) positioning means for setting the position of the sash frame;
c) a net supply means for supplying the net; (d) a net contact means for bringing the net into close contact with the front side of the sash frame; (e) a bead positioning means around which the bead is wound and a bead for pushing the bead into the mounting groove of the sash frame. (f) bead feeding means for feeding out the beads; (g) bead guiding means for winding the fed beads around the bead positioning means;
A screen door netting device comprising: (h) cutting means for cutting the net and beads at the front of the sash frame in the feeding direction after the netting has been set; and (i) feeding means for sending out the sash frame.