JP3436038B2 - Screen manufacturing method - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a method of manufacturing a screen door, and more particularly to a method of removing a surplus portion of an insect screen attached to a screen frame at a low cost and quickly to remove the screen. The present invention relates to a method of manufacturing a screen door that can be finished. 2. Description of the Related Art A screen door is formed by extruding an insect-resistant net made of, for example, a polyvinyl chloride resin on a frame made of, for example, an extruded aluminum alloy material. Usually, a screen frame is covered with an insect repellent net, and a rubber net holding rope is pushed into the net receiving groove formed along the inner peripheral portion of the frame together with the insect repellent net, for example, a tool such as a commercially available cutter knife. In this way, the excess portion of the insect repellent net that protrudes from the net receiving groove is cut off. [0003] However, in the above-described step of attaching the insect repellent net to the screen door frame, the knife blade is pressed against the screen door frame, that is, the aluminum alloy profile when cutting the insect repellent net. Since the wire of the net will be cut, not only will the fence appear on the screen door frame, but the edge of the cutter knife will be severely worn,
There has been a problem that the frequency of blade replacement increases, which causes an increase in cost. Further, if even one wire of the insect repellent net is cut off, there is also a problem that the quality of the product is reduced due to yarn residue, and these problems are solved. In addition, the development of a method capable of removing and finishing without increasing the cost has been an issue in manufacturing screen doors. SUMMARY OF THE INVENTION [0004] The present invention has been made in view of the above-mentioned problems in the conventional screen manufacturing process, and can reduce the surplus portion protruding from the insect door screen attached to the screen door frame at low cost. It is an object of the present invention to provide a method of manufacturing a screen door that can be quickly removed without leaving any thread. According to a first aspect of the present invention, there is provided a method of manufacturing a screen door, wherein a resin insect-resisting net is stacked on a screen frame or after the resin screen is stacked on the screen frame. Press the wire holding rope into the groove together with the insect repellent net while insulating the insulation between the part where the insect repellent net is installed inside the screen door frame and the heating tool heated above the softening point or melting point of the resin insect net. The feature is that the heating tool is brought into contact with the surplus portion of the insect repellent net protruding from the net receiving groove, and the surplus portion is removed by thermal fusing,
The configuration of such a screen door manufacturing method is used as means for solving the above-described conventional problems. [0008] In the method of manufacturing a screen door according to the present invention, the excess portion protruding from the frame of the resin insect net attached to the screen frame is removed by thermal fusing. The cutting can be easily performed by manually pressing a soldering iron-shaped tool having a copper-based alloy edge portion heated at the tip by an electric heater to a desired cut portion of the insect repellent net. . Further, if necessary, the traveling head having such a heating tool attached thereto is moved along a frame of a screen frame fixed on a work table, thereby automatically cutting the traveling head. It is also possible to remove the surplus portion of the insect repellent net by manually or automatically moving the screen frame on which the insect repellent net is fixed, with the fixed. The heating temperature of the tool tip is, for example, 170.degree. C. in the case of an insect net made of polyvinyl chloride resin.
It is desirable to be about 220 ° C. In addition to the soldering iron-like heating tool, it is also possible to perform thermal fusing by, for example, a gas burner, a hot air blower, or an electron beam. In the method for manufacturing a screen door according to the first aspect of the present invention, the insect repelling net superimposed on the screen door frame is pressed into the screen receiving groove of the frame together with the screen holding rope and protrudes from the screen receiving groove. Since the excess part of the resin insect repellent net is removed by thermal fusing, the removal of the insect repellent net becomes more reliable with no thread residue compared to, for example, mechanical cutting with a cutter knife, and the screen door frame is cut by a cutter. No knives are scratched and the edges of the cutter are not worn, eliminating the need to change blades, avoiding increased costs and softening the resin material of the insect repellent net.
Contact a heating tool heated above the point or melting point to the insect repellent net
To blow off the insect repellent net and remove the excess
The structure of the device is simple and inexpensive.
It becomes Further, at the time of thermal fusing, the heat from the heating tool to the mounted portion of the insect repellent net inside the screen door frame is blocked by the heat insulating material. There will be no adverse effects. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings. FIGS. 1 to 7 are views for explaining the structure of a fully automatic screen-screening apparatus to which the method for manufacturing a screen according to the present invention is applied, and FIG. 2 is a plan view showing the entire structure. It is. The screen door netting apparatus 1 shown in FIG. 2 includes an L-shaped apparatus base 2, on which a work carried in from the upper left in the figure, that is, a screen frame F is mounted. The first conveyor 3a which is transported in the horizontal direction in the figure parallel to the left and right vertical frames F1 and F2, and the horizontal frame F3 of the screen frame F which has been moved to a predetermined position by the first conveyor 3a are clamped in the same direction. First work carrier 3b to be further transferred
And a second conveyor 4a for transferring the screen frame F, which has been moved to a predetermined position by the work carrier 3b, in a vertical direction in the drawing parallel to the upper and lower horizontal frames F3, F4, and moved to the predetermined position by the second conveyor 4a. The second work carrier 4b that clamps the vertical frame F2 of the screen door frame F and further transfers the same in the same direction, and further transfers the screen door frame F that has been moved to a predetermined position by the second work carrier 4b in the same direction. A third conveyor 4c for dispensing the completed screen door to the next process is provided. A net supply device 5 for covering a insect screen N made of polyvinyl chloride wound in a roll shape on a screen frame is provided in the middle of a horizontal conveying path comprising a conveyor 3a and a work carrier 3b. At the same time, a first rope press-fitting device 6 provided on both sides with a net holding rope R wound on the drum D is provided adjacent to the net feeding device 5 on the downstream side in the work moving direction. The portal frame 6a of the first rope press-fitting device 6 constitutes a part of the net feeding device 5, and is moved up and down and back and forth by two cylinders 20 and 21, respectively, as described later. A net mounting mechanism 12 comprising a pair of arms 22 for gripping the tip of the insect-preventing net N fed from the net feeding mechanism 11 of the net feeding device 5 is provided. Further, the same structure as the first rope press-fitting device 6 is provided in the middle of the vertical conveying path including the second conveyor 4a, the second work carrier 4b, and the third conveyor 4c in the drawing. , A second rope press-fitting device 7 provided on both sides with a net holding rope R wound on a drum D
This is provided at a position near the transfer portion from the first work carrier 4a to the second work carrier 4b. A corner holding mechanism 23 and a corner cutter 24, which will be described later, are slidably supported in the middle of the vertical conveying path in the drawing and downstream of the second rope press-fitting device 7. A corner processing device 9 comprising two portal frames 8, 8 having slide bases 8a, 8a on both sides, respectively, is provided. FIG. 3 is a side view showing in detail the structures of the net supplying device 5 and the first rope press-in device 6 shown in FIG. As shown in FIG. 3, the net supply device 5 is mounted on a portal frame 5a provided so as to straddle the conveyor 3a, and a motor 11a and the motor 1
A feeding roller 11b that is driven to rotate by the motor 1a, and is wound in a roll shape by the rotation of the motor 11a and the feeding roller 11b, and is fed out of the tip of the insect-preventing net N rotatably mounted on the support base 10. A mechanism 11, a vertical cylinder 20 attached to the portal frame 6a of the first rope press-fitting device 6, and a horizontal cylinder 2 attached to the tip of a cylinder rod 20a of the vertical cylinder 20.
1 to move up and down and back and forth,
A net mounting mechanism 12 comprising a pair of arms 22 for gripping the tip of the insect repellent net N fed from 1 and covering the screen frame F, and being attached to the portal frame 5a so as to be movable up and down;
A screen cutting mechanism 13 including a screen cutter 13a and a cutter receiver 13b for cutting the insect-proof net N covered on the screen frame F at a predetermined position is provided. Further, the network supply device 5 includes a portal frame 5
a, and an adjustment bar 14b attached to the lower part of the gate-shaped frame 5a so as to be vertically movable and slidable in the left-right direction,
A tension adjustment mechanism 1 for adjusting the tension of the insect net N attached to the screen frame F by adjusting the adjustment bar 14b up and down.
4 is provided. The first rope press-fitting device 6 is, as described above, a rotary drum in which a net holding rope R is wound on both sides of a portal type frame 6a provided so as to straddle the first conveyor 3a and the first work carrier 3b. D, and rope guides 16 which are respectively raised and lowered by cylinders 15 attached to both sides of the gate-shaped frame 6a are provided at the left and right positions, and the wire holding ropes R are simultaneously placed in the net receiving grooves of the left and right vertical frames F1 and F2 of the screen frame F. Press-fit. The left and right rope guides 16 are movably mounted along the portal frame 6a, respectively, and correspond to the size of the screen frame F. As shown in FIG. 4 (a), the rope guide 16 is provided with a net holding rope R drawn out from the rotary drum D.
A press-fit roller (press-fitting jig) 17 for press-fitting the net receiving grooves of the left and right vertical frames F1, F2, and a rope winding mechanism 18 rotatably supported on the shaft of the press-fit roller 17. On the downstream side of the press-in roller 17 in the work moving direction, as will be described later, the surplus end of the insect-proof net N heated by an electric heater and pressed into the net receiving grooves of the vertical frames F1 and F2 together with the net holding rope R is meshed. A heat cutter (heating tool) 19 for fusing along the vertical frames F1 and F2 outside the receiving groove is provided. The rope winding mechanism 18 of the rope guide 16
Is rotated by 180 ° about the axis of the press-fit roller 17 as shown by a solid line and an imaginary line in FIG. 4 (a), and has a substantially L-shape as shown in FIG. 4 (b). Eggplant body 1
8a and a slider 18c that slides in a U-shaped groove 18d formed in the main body 18a by the operation of the cylinder 18b. The main body 18a has a U-shaped vertical groove 18e connected to the U-shaped groove 18d, and the net holding rope R is received in the vertical groove 18e. On the other hand, the slider 18
c has a cutter blade 18f that crosses the vertical groove 18e, and has a projection 18g above the cutter blade 18f, and cuts the net holding rope R received in the vertical groove 18e by the operation of the cylinder 18b. The end of the cut net holding rope R can be held between the vertical groove 18e and the projection 18g. FIGS. 5 (a) to 5 (d) are explanatory views showing the operation of the rope winding mechanism 18 in sequence. FIG. 5 (a) shows the net holding rope R in the net receiving groove G of the screen door frame F. 2 shows a state in which press-fitting has been completed. That is, as shown in FIG. 5A, when the screen door frame F moves and reaches the vicinity of the end of the screen receiving groove G, as shown in FIG. Due to the sliding of the slider 18c, the net holding rope R is cut, and one end of the net holding rope R falls to the net receiving groove G side, and the other end of the main body 1 of the rope winding mechanism 18 is cut.
8a and the slider 18c. Next, before the rope guide 16 is lifted and the following work is transferred, the rope winding mechanism 18 is moved.
180 ° while holding the cut end of the net holding rope R
By rotating, the net holding rope R is wound around the press-fit roller 17 as shown in FIG. Then, the screen frame F which is the succeeding work
Moves to reach a predetermined position, the press-fit roller 17 descends together with the rope guide 16, and the insect-proof net N
The net holding rope R is pressed into the net receiving groove G from above. After the net holding rope R is pressed into the net receiving groove G, the end of the net holding rope R is released from the rope winding mechanism 18 by the pushing operation of the cylinder 18b. Next, the rope guide 16 slightly rises, and in this state, the rope winding mechanism 18
Is rotated in the opposite direction (clockwise direction) by 180 °, the rope winding mechanism 18 returns to the position shown in FIG. 5A, and the screen door frame F moves rightward in FIG. Pressing of the holding rope R proceeds. At this time, the rope winding mechanism 18 may be rotated 180 ° in the counterclockwise direction without raising the rope guide 16. Although the end portion and the start end portion of the net holding rope R are not inserted into the net receiving groove G at this time as shown in FIG. The press-fitting of the start end portion is performed by a corner pressing mechanism 23 of the corner processing device 9 described later. FIG. 1A is a diagram showing the progress of the press-fitting of the net holding rope R into the net receiving groove G by the press-fitting roller 17. Heat cutter 19 arranged downstream in the moving direction
As a result, as shown in FIG. 1 (b), the portion which has been fitted into the net receiving groove G is thermally blown and removed. FIG. 1A shows only one of the opposing frame members of the screen door frame F, and it goes without saying that the net holding rope R is simultaneously pressed into the other frame member. . The heat cutter 19 is heated by an electric heater (not shown) to about 210 ° C., which is slightly higher than the melting point of the polyvinyl chloride resin used as the material of the insect repellent net N, The contact portion is melted by softening and melting. The second rope press-fitting device 7 shown in FIG.
It has the same structure as the first rope press-fitting device 6,
A rope guide having a press-fit roller and a rope winding mechanism as shown in FIG. 4 is provided on both sides thereof, and a similar heat cutter is provided.
The surplus end portion of the insect repelling net N pressed into the net receiving groove of F4 together with the net holding rope R is thermally blown along the lateral frames F3 and F4 outside the net receiving groove. Further, the corner processing device 9 shown in FIG.
In FIG. 6, a portal frame 8 as shown in FIG. 6 is arranged back to back, and a cylinder 23a and a corner holding jig 23b which is raised and lowered by the cylinder 23a are provided at both ends of each portal frame 8. A slide base 8a is provided for slidably holding a corner holding mechanism 23 provided and a corner cutter 24 that moves up and down by a cylinder 24a. The corner holding jig 23b of the corner holding mechanism 23 has an L-shaped cross section corresponding to the shape of the corner portion of the screen door frame F. The first and second ropes are pushed by the pushing operation of the cylinder 23a. It has a function of press-fitting the end portion and the start end of the net holding rope R, which could not be inserted by the press-in rollers 17 of the press-in devices 6 and 7, into the net receiving groove G. On the other hand, the corner cutter 24 is heated to about 210 ° C. by an electric heater (not shown) similarly to the heat cutter 19, and is moved up and down and back and forth by cylinders 24c and 24d as shown in FIG. 24e and a heat insulating material 24f for protecting the portion of the insect screen N already mounted on the screen door frame F from the heat of the heat cutter 24e. As shown in FIGS. 7B to 7D, the cylinders 24c and 24d are pushed out. Thus, the heat-cutter provided in the first and second rope press-fitting devices 6 and 7 has a function of fusing off the remaining uncut corners of the insect repellent net N. Hereinafter, the operation of the screen covering apparatus 1 having such a structure will be briefly described. First, when the screen frame F, which is a work, is carried in from the upper left of the apparatus base 2 shown in FIG.
It is transported rightward in the figure by the conveyor 3a, and is guided to a predetermined position while being corrected by a guide mechanism (not shown) so that the directions of the vertical frames F1 and F2 coincide with the traveling direction. Then, when the screen door frame F reaches a predetermined position, the horizontal frame F3 of the screen door frame F is clamped by the clamper 3c of the first work carrier 3b, and the screen feeding mechanism 11 of the screen supply device 5 operates. The tip of the sent insect net N is gripped by the arm 22 of the net mounting mechanism 12 and is overlaid on the screen door frame F by the operation of the cylinders 20 and 21. At this time,
The adjustment bar 14b of the tension adjusting mechanism 14 is interposed between the insect net N and the screen door frame F, so that the insect net N is given an appropriate bend. The net door frame F is not deformed in balance with the length dimension drawn into the net receiving groove G of the frame material together with the net holding rope R. Next, together with the rope guide 16 of the first rope press-in device 6, the press-in roller 17 with the wire holding rope R wound thereon as shown in FIG.
As shown in FIG. 5D, the net holding rope R is pressed into the net receiving grooves G of the vertical frames F1 and F2 together with the insect net N, and the starting end of the net holding rope R is released from the rope winding mechanism 18. At the same time, the rope winding mechanism 18 rotates 180 ° rearward in the direction of travel of the screen door frame F to move the screen holding rope R into the vertical groove 18.
Accept e. When the tip of the insect repelling net N is fixed to the screen frame F, the arm 22 of the net mounting mechanism 12 is raised by the retracting operation of the cylinder 20. Next, the screen door frame F moves together with the insect repellent net N by the operation of the first work carrier 3b, and accordingly, as shown in FIG. Removal proceeds. When the screen door frame F moves and the insect repellent net N having a length corresponding to the size of the frame F is drawn out, the net cutting mechanism 13 operates to cut the insect repellent net N. By moving the screen frame F, the vertical frame F1 is moved.
, F2 reach the press-in roller 17, FIG.
The cylinder 1 of the rope winding mechanism 18 as shown in FIG.
8b, the net holding rope R is cut, the rope guide 16 of the first rope press-in device 6 is raised, and the rope winding mechanism 18 as shown in FIG. Prepare. Rope guide 1 of first rope press-fitting device 6
6, the clamper 3 of the first work carrier 3b
c, the clamp of the horizontal frame F3 is released, and the vertical frames F1, F2
After the insect screen N and the net holding rope R have been pressed into the net receiving groove G, the screen frame F is transferred by the second conveyor 4a in a direction parallel to the horizontal frames F3 and F4. When the screen door frame F reaches a predetermined position, the vertical frame F2 of the screen door frame F is clamped by the clamper 4d of the second work carrier 4b, and the net holding rope R is pressed into the vertical frame frames F1, F2. In exactly the same manner as in the above, the second rope press-in device 7 allows the side frames F3,
Pressing of the net holding rope R into the net receiving groove G of F4 is started, and press-fitting of the net holding rope R and fusing of the insect repellent net N by the heat cutter progress as in FIG. Removed. When the press-fitting of the net holding rope R into the net receiving grooves G of the horizontal frames F3 and F4 is completed, the rope guide of the second rope press-in device 7 similarly rises, and the screen door frame F is connected to the corner processing device 9 in the same manner. It reaches the portal frame 8,8. Then, the corner holding jig 23b is pushed down by the operation of the cylinder 23a of the corner holding mechanism 23 of the corner processing device 9, and the start end and the end of the net holding rope R rising from the net receiving groove G are fixed to the insect net. N is pressed into the net receiving groove G together with N. Next, by moving the slide base 8a, the corner cutter 24 of the corner processing device 9 is positioned inside the corner of the screen door frame F, and as shown in FIGS. 7B to 7D,
After the heat cutter 24e is lowered by the pushing operation of the cylinders 24c and 24d, the heat cutter 24e is pushed out toward the corner portion of the insect repelling net N, and the insect repelling net N is provided by the heat cutter provided in the first and second rope press-fitting devices 6 and 7. The uncut corners are blown. At this time, since the heat from the heat cutter 24e is blocked by the heat insulating material 24f, the thermal effect on the insect repellent net N is eliminated, and the insect repellent net N
Material deterioration can be prevented. The removal of the surplus portion of the insect repellent net N by the heat cutter 24e and the heat cutter 19 is performed by thermal fusing, so that there is no breakage, and no yarn residue is generated, so that a screen door with good appearance quality can be obtained. become. The screen door completed as described above is transferred to the unloading side of the apparatus by the third conveyor 4c, and is transferred to the next step, for example, the inspection step. In the above-described embodiment, an example of the apparatus for moving the screen frame F has been described.
In the screen door manufacturing method according to the present invention, the press-fitting jig and the heating tool can be moved along the frame member of the screen frame F fixed on the apparatus base. As described above, according to the first aspect of the present invention,
The method of manufacturing a screen door related to the above is that the resin insect repellent net is thermally blown to remove the surplus part, so that the surplus part of the insect repellent net can be securely removed with no thread residue compared to mechanical cutting. with it so that it is rid, no damage to the screen door frame, since the replacement of the cutter blade is not required, which results in a very excellent effect that it is possible to reduce costs further, a resin insect
Insect-proof heating tools heated above the softening point or melting point of the net
The insect repellent net is thermally melted by contacting the
Since the surplus part of the net is removed, it is relatively simple.
It is possible to implement the present invention at low cost with a simple device.
Heat insulation and the heat of thermal fusing
Frame so that it does not reach the inside.
To prevent material deterioration due to heat of the insect repellent net attached to the
An even better effect is achieved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
(A) and (b) are a perspective view and a sectional view, respectively, showing the press-fitting of the insect repelling net and the thermal cutting of the insect repelling net by a heating tool in the screen door meshing apparatus to which the manufacturing method of the screen door according to the present invention is applied. . FIG. 2 is a plan view showing the overall structure of a screen door meshing apparatus to which the screen door manufacturing method according to the present invention is applied. FIG. 3 is a side view showing in detail an arrangement of a net supplying device and a first rope press-fitting device in the netting device shown in FIG. 2; FIG. 4 is a perspective view showing the structure of the first rope press-fitting device shown in FIG. 3 in detail. FIG. 5B is an exploded perspective view showing a structure of a rope winding mechanism of the press-fitting device shown in FIG. 5 (d) are operation diagrams for sequentially explaining the operation of the rope winding mechanism shown in FIG. 4 (a). FIG. 6 is a perspective view showing in detail a structure of a corner processing device in the netting device shown in FIG. 2; FIG. 7 is a plan view showing a structure of a corner cutter of the corner processing device shown in FIG. (B) It is explanatory drawing which shows the standby state of the corner cutter shown to Fig.7 (a). (C) It is explanatory drawing which shows the state in which the heat cutter of the corner cutter shown in FIG. (D) It is explanatory drawing which shows the state in which the heat cutter shown in FIG.7 (c) advanced and the insect-proof net was blown off at the corner of the frame. [Description of Signs] F Screen door frame G Screen receiving groove N Insect repellent net R Screen holding rope 17 Press-in roller (Press-in jig) 19 Heat cutter (Heating tool) 24e Heat cutter (Heating tool) 24f Insulation material

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-257358 (JP, A) JP-A-59-19769 (JP, A) JP-A-10-37635 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) E06B 9/52

Claims (1)

(57) [Claims] (Claim 1) A resin insect net is laminated on a screen frame.
Or after stacking, form a net
Press the wire holding rope into the groove along with the insect screen,
Insulated insect repellent net and resin insect repellent net located inside
Between the heating tool heated above the softening point or melting point of
The heating tool protrudes from the net receiving groove while blocking with heat insulation
Contact with the surplus part of the insect repellent net
A method of manufacturing a screen door.