JPS6137172B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present application discloses a method for attaching a screen (hereinafter referred to as a screen) that has been finished with paper making and dewatering and automatically inserts the screen into a support frame of a dryer, and a method for holding the screen. The device is intended to securely hold the supplied screen under tension and securely insert it into the support frame while maintaining this tensioned state.

FIG. 1 is an explanatory diagram showing an outline of an example of an automatic cage insertion device 1 to which the gripping device of the present invention is applied, and operates as follows. Reference numeral 2 denotes a reciprocating body placed on a sliding rail 4 attached to a machine frame 3, in which a swing shaft 7 swings by a link 6 as the driving shaft 5 rotates, and a swing shaft 7 is mounted on the swing shaft 7. By swinging the swinging arm 8, the reciprocating body 2 performs a predetermined reciprocating motion on the sliding rail 4 in conjunction with the articulation of the attachment chain 10 of the support frame 9 of the dryer (not shown). A bearing 11 is rotatably attached to the reciprocating body 2. A main shaft 12 is pivotally supported on the bearing 11 so as to be able to rotate and slide along with the bearing, and a cam follower 14 at the tip of a cam lever 13 attached to the bearing 11 is attached to a cam plate. 15. Further, a gripping means 16 for a cage 17 is attached to the main shaft 12. Therefore, when the reciprocating body 2 reciprocates as described above, the bearing 11 rotates by a predetermined angle by the cam lever 13 that is in contact with the cam plate 15, and this rotation also rotates the main shaft 12, as shown in FIG. The gripping means 16, which was in the gripping position 16A shown by the solid line, swings to the insertion position 16B shown by the phantom line,
The screen 17 gripped at the gripping position 16A is inserted into the support frame 9, and the return movement of the reciprocating body 2 causes the gripping means 16 to return to the gripping position 16A. The gripping means 16 is a single gripping means in order to solve the problem of mounting space, as explained in detail in Japanese Patent Application Laid-Open No. 53-50379 "Distributing and Moving Device for Nori Seaweed Holding Device" previously filed by the present applicant. At 16, the cages 17 are inserted alternately into the two adjacent mounting frames 9A and 9B of the support frame 9, and the main shaft 12
Although the gripping means 16 is caused to perform a sorting operation by sliding the gripping means 16, since the sorting operation is not directly related to the present application, a detailed explanation of the sorting mechanism and the like will be omitted.
Reference numeral 18 denotes a backup device for the support frame 9, the details of which will be described later.

A conveyance roller 19 is rotated counterclockwise in FIG. 1 by a transmission means (not shown) from the driving shaft 5, conveys the screen 17 supplied by an appropriate screen supply device (not shown), and transfers it to the stopper 20. The position is determined in the front-back direction. Also, conveyance roller 19
Although not shown in the figure, in order to position the screen 17 in the lateral direction, it is possible to provide a spiral convex shape on the outer peripheral surface of the roller, or to displace the conveyance roller 19 at a certain angle with respect to the advancing direction of the screen 17. A conventionally widely used one-sided shifting mechanism is adopted.

Next, 21 is a screen pushing device that pushes up the positioned screen 17 and transfers it to the gripping means 16. Seat plates 24 are attached to both ends of the board 23 attached to the leg pieces 22, and a total of four seats are attached to each seat plate 24, one pair on each seat plate 24. A push-up bar 25 is attached. The push-up rod 25 has a sleeve 27 loosely fitted onto a core shaft 26 fixed to the seat plate 24, is urged upward by a spring 28, and abuts on a nut 29 screwed onto the top of the core shaft 26. 30 is the sleeve 2 of each push-up rod 25;
This is a screen receiving plate bridged between 7. In the screen lifting device 21 as described above, the leg piece 22 is supported by the support rod 3a so as to be vertically movable. A push-up protrusion 31 is implanted in the leg piece 22, which interferes with the push-up arm 32 attached to the driving shaft 5, and the cage push-up device 21 is pushed up as shown in FIG. 1, and the cage 17 is positioned. is picked up from above the transport roller 19 by the cage receiving plate 30, and the gripping means 1 is placed on standby at the gripping position 16A.
6 grips this screen 17 and supports the support frame 9 as described above.
Insert into.

In the automatic screen mounting device 1 as described above, the gripping device 16 of the present invention is as follows, and the present invention will be explained in detail below with reference to drawings showing embodiments. In the device described in detail below, a set of devices having the same configuration is attached to each of the right and left ends of the mounting arm 34, so the following description will be made regarding only one of the devices. Reference numeral 33 denotes a pawl sliding movement regulating member, on which a pawl sliding movement regulating shaft 36 is pivotally attached so as to pass through a pawl frame 35 fixed to the end of the mounting arm 34, and a pair of allowable pieces are attached to the shaft ends of the pawl sliding movement regulating shaft 36. 37 and both allowable pieces 37, a locking piece 39 is fixed so as to be located in the upper surface notch 38 of the claw frame 35, and a return spring is provided between the above-mentioned allowable piece 37 and the claw frame 35. 40, the claw sliding movement regulating member 33 is urged to rotate downward, that is, in a direction approaching the cage to be gripped, and a stopper 41 is provided protruding from the allowable piece 37. has been done. Reference numeral 42 denotes a rotating piece provided at the left end of the claw sliding movement regulating shaft 36 in FIG.

Next, the gripping claw 43 is pivotally supported on the shaft end of a support shaft 44 that is attached so as to pass through the claw frame 35, and a claw portion 43a is provided at the bending point where the gripping claw 43 is bent into a dogleg shape. The tip part from the claw part 43a is a stopper 46.
It is becoming. Therefore, the gripping claw 43 and the above-mentioned allowable piece 3
A gripping spring 45 is stretched between the gripping spring 7 and the gripping spring 45 . As described above, both the gripping claw 43 and the claw sliding restriction member 33 are held by the stopper 41 of the allowing piece 37 in the standby position shown in FIG. Claw 43
Then, the stopper 46 of the gripping pawl 43 comes into contact with the pawl sliding movement regulating shaft 36 and the tensions of both springs 40 and 45 are balanced, so that the pawl sliding movement regulating member 33 and the gripping pawl 43
It appears to be an integral structure and does not rotate in any direction, maintaining the standby state shown in Figure 3.
At this time, the tip of the claw portion 43a faces a linear pressing surface 35a provided on the bottom edge of the claw frame 35 with an appropriate distance H between them. Reference numeral 47 denotes a pawl return member pivotally attached to the support shaft 44 so as to correspond to the locking piece 39, and includes a push-up surface 48, a return prevention protrusion 49, and an opening surface 4.
9a, the opening surface 49a and the locking piece 39 of the claw sliding movement regulating member 33 come into contact with each other in the standby position shown in FIG. The claw device 51 is located inside (upper side in FIG. 3).

In this manner, the main arm 52 is attached to the attachment arm 34, which has the claw devices 51 opposite to each other at both ends, so that the attachment arm 34 can freely move. The tip of the main arm 52 is made to protrude from a hole 53 made in the mounting arm 34, and the bracket 54 and the main arm 52 are pivotally connected so that the main arm 52 is held by a bracket 54 provided on the mounting arm 34, and the main arm 52 is pivoted. A stopper 55 and a leaf spring 56 are fixed to the tip of the main arm 2 with a screw 57. Note that 58 is a distance color. Therefore, the mounting arm 34 is the main arm 52.
It is movably and elastically attached to the stopper 55, and moves left and right in FIG. 3 until it comes into contact with the stopper 55.

The screen 17 positioned on the conveyance roller 19 is pulled up from the conveyance roller 19 by the screen receiving plate 30 by the push-up operation of the push-up device 21, and is moved to the gripping position 16A.
The screen 1 on the screen receiving plate 30 is pushed up toward the holding means 16 waiting at
7 hits the pressing surface 35a of the claw frame 35 and is pressed. However, the push-up device 21 continues to rise, but the rise of the mantle 27 is restrained by the pressing surface 35a, so the core shaft 26 rises while pressing the spring 28, and the nut 29 at the top of the shaft 26 is moved upward by the rotating piece 42. Push it up (Fig. 6) and release the return spring 40.
While stretching, the pawl sliding movement regulating member 33 is pushed counterclockwise in FIG. 6, that is, in a direction away from the screen 17, and when the core shaft 26 reaches its highest end, it will be in the state shown in FIG. As the pawl sliding movement regulating member 33 is pushed around as described above, the locking piece 39 that was in contact with the open surface 49a of the return prevention protrusion 49 in the standby position shown in FIG.
9a moves while sliding and engages with the return-preventing protrusion 49, so even if the push-up by the nut 29 is released, the claw sliding-motion regulating member 33 does not return to its previous state due to the spring force of the return spring 40. Maintain the state of the diagram.

On the other hand, the gripping claws 43 are released from contact with the stopper 41 by rotating the claw sliding movement regulating member 33 as described above, so that they can be slid outward (i.e., in the direction closer to the cage 17) by the spring force of the gripping spring 45. (rotated counterclockwise in FIG. 6), and the claw portion 43a
7 and grips the screen 17. As a matter of course, when the gripping claw 43 rotates in this manner, the contact between the stopper 46 and the claw sliding motion regulating shaft 36 is also released, so that the claw sliding motion regulating member 33, which has been integrally configured up until now, is released. The direct connection with the gripping claws 43 is severed, and the gripping claws 43 can perform their own gripping operation. As described above, the gripping of the screen 17 according to the present application is first performed by gradually moving between the screen rods 17a as the pawl sliding movement regulating member 33 rotates, and the contact between the stopper 41 and the gripping pawl 43 is released. When this happens, the spring force of the gripping spring 45 instantly and reliably holds the tip claw portion 43 with a strong force.
The entire part a enters and firmly grips the cage 17. At this time, since the cage 17 is clamped between the pressing surface 35a and the cage receiving plate 30, the gripping spring 45 is released as it is gripped.
Although it is slightly affected by the spring force, complete tension is not applied. When the secure gripping is completed in this way, the push-up device 21 descends and the clamping pressure of the screen 17 between the pressing surface 35a and the screen receiving plate 30 is released, so that the gripping claws 43 are further moved by the spring force of the gripping spring 45. Sliding slightly outward, that is, in the direction of stretching the screen 17,
Appropriate tension is applied to the gripped screen 17 (7th
figure). As is clear from the above, the grasping of the screen 17 in the gripping device of the present invention is divided into three stages, and there is no need to suddenly grasp it and apply tension to the screen 17.
Not only can the screen 17 be held securely, but the seaweed spread on the screen 17 will not be damaged. In this embodiment, the sliding movement regulating shaft 36 pivotally connected to the claw frame 35
Although a rotating piece 42 is provided at one end of the rotary piece 42 to push up the rotating piece 42, the object of the present invention can also be achieved by directly pushing up the allowing piece 37 without using the rotating piece 42. Further, in the embodiment, the stopper 46 attached to the gripping claw 43 is connected to the claw sliding movement regulating shaft 36.
However, this is not limited to the embodiment, and a stopper is provided on the claw frame 35,
The gripping claw 43 may be brought into contact with the stopper, and in short, the configuration shape is not limited as long as the condition shown in FIG. 3 is satisfied in the standby position.

Next, the method of inserting the gripped screen 17 will be explained as follows. In the above, when the gripping of the cage 17 is completed, the reciprocating body 2 moves forward, and this forward movement causes the gripping means 16 to swing as described above and come close to the support frame 9 waiting at the insertion position 16B. perform insertion operation,
First, the gripped screen 17 approaches the support frame 9 as shown in FIG.
It fits between the screen rods 17a. After that, when the cage 17 approaches the support frame 9 and the pressing surface 35a as shown in FIG. Turn the locking piece 3 slightly clockwise in the figure.
9 is released, the claw sliding movement regulating member 33 quickly returns to the standby position due to the spring force of the return spring 40, and as a result, the gripping claws 43 naturally return to their original positions, so that the gripping claws 43 are returned to their original positions. The claw portion 43a that had been inserted into the cage is instantly pulled out from between the cage rods 17a, and the cage 17, which had been held with appropriate tension by the gripping claws 43, remains in a state where the tension is maintained. It is inserted and delivered to the hook 9D. In this way, the insertion of the screen 17 in the present application first involves inserting the hook 9 between the screen rods 17.
D is inserted shallowly, and then pressed with the pressing surface 35a to ensure that the cage 17 is inserted into the hanging claw 9D, and the moment the insertion is finished, the gripping claw 43 is pulled out, and when pulling out, the cage 17 is pressed. Since it is pressed between the surface 35a and the support frame 9,
There is no risk that the screen 17, which has been inserted once, will come out and fall off with the pull-out shot. When the insertion of the screen 17 is completed as described above, the reciprocating body 2 moves back, and the gripping means 16 returns to its old position and waits for the screen 17 to be pushed up next.

Next, reference numeral 18 denotes the above-mentioned back-up device, which backs up and holds the support frame 9 from the rear side of the insertion surface of the screen 17 when inserting the screen into the support frame 9 as described above to prevent the support frame 9 from shaking. This increases the reliability of the insertion operation and prevents damage to the support frame 9. It is constructed as follows and operates as follows.

Reference numeral 59 is a back-up shaft, which has a presser pawl 60 at its tip, is pivotally supported by a bearing 61 fixed to the machine frame 3, and has a fork 62 near its rear end. Reference numeral 63 denotes a cam lever, one end of which is swingably supported in a bearing 61 or an appropriate position on the machine frame, and the other end of the cam lever 63 is engaged with a fork 62 of the backup shaft 59. Further, a cam follower 64 provided on the cam lever 63 fits into a cam groove 65 provided on the upper surface of the reciprocating body 2. As shown in FIG. 1A, the cam groove 65 has a tip with a center distance of Ha,
The straight parts 65a and 65b at the rear end are connected to the oblique rotating part 65.
The cam follower 64 is connected to the cam groove 65 in the standby position shown in FIG. The back-up shaft 5
The presser claw 60 of 9 is waiting in a horizontal state.

When the reciprocating body 2 reciprocates from this state, the rotating part 6
5c causes the cam lever 63 to swing as shown in the imaginary line in FIG. The presser claw 60 descends vertically and holds the support frame 9 back up from the rear side of the screen insertion surface to prevent the support frame 9 from shaking as the screen is inserted, thereby ensuring reliable insertion operation. It is.

Furthermore, in the gripping means 16 of the present invention, the attachment arm 34 is movably and elastically attached to the main arm 52 as described above. 43a is directly connected to the rod 17
If the support frame 9
When the hook 9D and the cage rod 17a are in direct contact with each other when they are inserted into the frame 9D, or because the hook 9D and the support frame 9 themselves are deformed, a pair of corresponding hook devices may not be connected. 51, the leaf spring 56 is pressed and the mounting arm 34 swings until it is stopped by the stopper 55, and the claw portion 43a or hanging claw 9D that was in direct contact with the screen rod 17a is Mounting arm 34
As a result of the swinging, the abutting positions are shifted and each of them reliably enters between the screen rods 17a, and even if the support frame 9 is deformed, it swings as described above and is crimped onto the deformed support frame 9. , the disadvantage that only one side of the screen 17 is inserted and the other side is not inserted is almost completely eliminated.

As described above, the present application securely inserts the grasped screen into the support frame, eliminating insertion errors and falling out of the screen once inserted, and furthermore, the installed screen maintains appropriate tension, allowing it to dry easily. This is a useful invention that eliminates the drawback of sometimes shrinking seaweed and facilitates automatic insertion, which was previously considered difficult.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing the outline of the present application as seen from the side, Fig. 1A is a plan view of the cam groove, Fig. 2 is a partial front view of the support frame, and Fig. 3 is a partially cutaway view of the main application. 4 is a side view of FIG. 3 with a part omitted, FIG. 5 is a partial perspective view of the claw device with the claw frame omitted, and FIGS. 6 to 9 are explanations of the operation of the claw device. It is a diagram. 1... automatic screen insertion device, 2... reciprocating body, 4...
...Sliding rail, 9...Support frame, 9A,
9B... Mounting frame, 90... Hanging claw, 12... Main shaft,
15... Cam plate, 16... Gripping means, 17... Attachment, 17a... Screen rod, 21... Push-up device, 26...
... Core shaft, 30 ... Screen receiving plate, 33 ... Pawl sliding movement regulating member, 34 ... Mounting arm, 35a ... Pressing surface, 37 ...
...Permissible piece, 39... Locking piece, 40... Return spring,
41...Stopper, 43...Gripping claw, 43a...
... Claw portion, 45 ... Grip spring, 46 ... Stopper, 47 ... Claw return member, 48 ... Push-up surface, 51
... Claw device, 52 ... Main arm.

Claims (1)

[Scope of Claims] 1. A cage insertion method in which a paper cage that has been subjected to papermaking and dewatering and has been conveyed is held at a gripping position, and this paper cage is inserted into a support frame at an insertion position. A process of sliding a gripping claw pivotably supported by a gripping spring, inserting the claw part between the rods of the attached cage sent to the gripping position, and gripping the attached cage under tension; a step of moving the screen from a gripping position to an insertion position; a step of bringing the attached screen transferred in the above manner close to the support frame; and a step of fitting a hook between the screen rods; and a pressing surface of the screen frame. The process of pressing the retainer against the support frame with A method for inserting a screen comprising the steps of: pulling out the claw part from between the screen rods, and inserting the screen into a support frame while keeping the screen tensioned. 2. A pair of allowable pieces 37 having a stopper 41 attached to the claw sliding movement regulating shaft 36 pivotally supported on the claw frame 35;
A claw sliding motion restriction device comprising a locking piece 39 attached to the claw sliding motion regulating shaft 36 so as to be located approximately in the middle of the attachment position of the allowing piece 37, and a spring 40 stretched between the claw frame and the allowing piece 37. A member 33 and a stopper 46 are pivotally supported on a support shaft 44 attached to the claw frame 35 so as to correspond to the allowable piece 37, and have a spring 45 tensioned between them. A pair of gripping claws 43 and a locking piece 39 attached to the claw sliding restriction shaft 36 are pivotally supported on a support shaft 44 attached to the claw frame 35,
Push-up surface 48 pushed up by hook 9D of support frame 9
a claw return member 47 which has a return prevention protrusion 49 and an open surface 49a, is biased by a spring 50 mounted between the support shaft 44, and has the open surface 49a in contact with the locking piece 39; and a claw return member 47 at both ends of the mounting arm 34.
A holding device for a cage, in which a push-up surface 48 is arranged oppositely to correspond to a hook 9D of a support frame 9. 3 The bottom edge of the claw frame 35 is a linear pressing surface 35a, and the gripping claws 43 in the standby position are attached to the pressing surface 35a.
3. The gripping device according to claim 2, wherein the gripping device faces the upper side of the gripping device a with an appropriate distance therebetween.