Tumbler linkage matching structure and linkage control method

Abstract

A kind of drum linkage structure and linkage control method, it includes drum, cutter roll, bottom knife roll, two insertion rollers, pressure roller, middle insertion roller, transfer wheel, folding and clamping mechanism and shift fork mechanism, by setting fixed cam disc and movable cam disc in the both ends of drum, movable cam disc side is also provided with driving wheel, movable cam disc and driving wheel synchronous rotation with hollow shaft, two insertion rollers, pressure roller, middle insertion roller and transfer wheel are matched with driving wheel synchronous rotation, folding and clamping mechanism and shift fork mechanism are connected with drum, and cooperate with fixed cam disc or movable cam disc, bottom knife roll and middle insertion roller are arranged on the central axis of the top and bottom of drum, cutter roll and bottom knife roll are tangent, driving wheel drives multiple roller linkage, folding and clamping mechanism and shift fork mechanism are driven by drum spin process, realize the transfer and multiple folding of gauze piece on a drum, and prevent blasting piece, compact structure, small space occupation, it is beneficial to realize high-speed folding and keep stability.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical product production equipment, and relates to a drum linkage cooperation structure and a linkage control method. BACKGROUND

[0002] In medical products, the folding machine is the main equipment for producing gauze pieces, and its continuous and uninterrupted production efficiency is relatively high, but the involved constituent devices are relatively more, and the scattered arrangement leads to a relatively long production line; how to simplify and combine the components together and realize the same function or function expansion becomes a key problem to be solved at present; due to the relatively more device components, in the integration process, the reasonable arrangement of each mechanism and component needs to be solved, and the relative position relationship and cooperation structure need to be established, and the linkage relationship needs to be established so that the folding machine can be folded at high speed and keep stability. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a drum linkage cooperation structure and a linkage control method, wherein fixed cam plates and movable cam plates are arranged at both ends of the drum, a driving wheel is further arranged on one side of the movable cam plate, the movable cam plate and the driving wheel rotate synchronously with the hollow shaft, the two inserting rollers, the pressing roller, the middle inserting roller and the transfer wheel rotate synchronously with the driving wheel, the folding and clamping mechanism and the fork mechanism are connected with the drum and cooperate with the fixed cam plate or the movable cam plate, the cutting knife roller and the middle inserting roller are arranged on the center axis of the top and bottom of the drum, the two inserting rollers, the pressing roller and the transfer wheel are respectively arranged on both sides of the center axis, the cutting knife roller and the bottom knife roller are tangent, the driving wheel drives multiple rollers to link, and the folding and clamping mechanism and the fork mechanism are connected during the self-rotation of the drum, so that the transfer and multiple folding of the gauze piece on one drum are realized, and the gauze piece is prevented from being broken, the structure is compact, the occupied space is small, and it is beneficial to realize high-speed folding and keep stability.

[0004] To solve the above technical problems, the technical scheme adopted by the present application is: a drum linkage cooperation structure, which comprises a drum, a cutting knife roller, a bottom knife roller, two inserting rollers, a pressing roller, a middle inserting roller, a transfer wheel, a folding and clamping mechanism and a fork mechanism; the bottom knife roller and the middle inserting roller are arranged on the same center axis of the top and bottom of the drum, the two inserting rollers and the pressing roller are arranged on one side of the center axis, the transfer wheel is arranged on the other side of the center axis, and the cutting knife roller is arranged on one side of the bottom knife roller and is tangent to the bottom knife roller; the folding and clamping mechanism and the fork mechanism are connected with the drum and cooperate with the fixed cam plate or the movable cam plate outside the drum.

[0005] The drum is a hollow circular drum body, the hollow shaft communicates with the negative pressure cavity in the inside through the tooth ring plate at both ends of the hollow circular drum body; a plurality of tooth plates arranged in a ring shape are arranged on the surface of the drum, a folding and clamping gap is arranged between every two tooth plates, and a folding and clamping gap with adsorption holes on both sides is arranged between every two folding and clamping gaps.

[0006] The hollow shaft of the rotating drum is provided with a fixed cam disc and a movable cam disc at both ends, and the movable cam disc is further provided with a driving wheel at one side.

[0007] The fixed cam disc and the movable cam disc are both provided with inner cam tracks and outer cam tracks, which cooperate with the folding and clamping mechanism and the shifting fork mechanism to control the swinging and overturning thereof.

[0008] The driven wheels connected by the two inserting rollers, the pressing roller, the middle inserting roller and the transfer wheel all cooperate with the driving wheel of the rotating drum; the cutting knife roller and the bottom knife roller are connected with the cutting knife motor and the bottom knife motor respectively.

[0009] The one inserting knife, the two inserting knives and the middle inserting knife on the bottom knife roller, the two inserting roller and the middle inserting roller all correspond to the folding and clamping seam on the rotating drum; the three pressing heads on the side of the pressing roller are tangent to the toothed plate of the rotating drum; the suction holes of the suction petals of the transfer wheel are close to the toothed plate of the rotating drum.

[0010] The folding and clamping mechanism comprises a folding and clamping knife connected to the folding and clamping shaft, a clamping block connected to one end of the folding and clamping shaft, a folding and clamping cam bearing connected to the clamping block, the folding and clamping shaft penetrating through both ends of the rotating drum, the folding and clamping knife being located in the folding and clamping seam of the rotating drum, and the folding and clamping cam bearing being in rolling cooperation with the outer cam track.

[0011] The shifting fork mechanism comprises two swinging arms connected to both ends of the shifting fork shaft, and a shifting fork rod connected to the swinging arms, one of the swinging arms being connected to the shifting fork cam bearing, the swinging arms being located outside the rotating drum, the shifting fork shaft penetrating through the rotating drum, the shifting fork rod being located outside the rotating drum, and the shifting fork cam bearing being in rolling cooperation with the inner cam track.

[0012] The rotating drum drives the two inserting rollers, the pressing roller, the middle inserting roller and the transfer wheel to rotate synchronously, and also drives the folding and clamping mechanism and the shifting fork mechanism to move synchronously, the folding and clamping knife of the folding and clamping mechanism swings in the folding and clamping seam, and the shifting fork rod of the shifting fork mechanism overturns outside the rotating drum.

[0013] The linkage control method of the linkage cooperation structure of the rotating drum as described above comprises the following steps:

[0014] S1, linkage, the rotating drum drives the two inserting rollers, the pressing roller, the middle inserting roller and the transfer wheel to rotate synchronously, the bottom knife roller and the cutting knife roller rotate reversely and pull the gauze, and the gauze is cut at the cutting point of the bottom knife roller and the cutting knife roller, and the cut gauze is a gauze piece of a certain specification; in this step, the vacuum pump connected to the rotating drum and the centrifugal fan connected to the transfer wheel are started simultaneously.

[0015] S2, the gauze sheet after cutting is transferred and inserted for the first time, a inserting knife on the bottom knife roller inserts the front end of the gauze sheet into the folding and clamping seam of the rotating drum, the folding and clamping knife in the folding and clamping seam clamps the gauze sheet at the same time, and the gauze sheet on the bottom knife roller is transferred to the rotating drum under the continuous rotation of the rotating drum; the bottom knife roller continues to rotate to drive the inserting knife out of the folding and clamping seam, and the folding and clamping knife in the folding and clamping seam clamps the gauze sheet;

[0016] S3, the gauze sheet is inserted for the second time, a two-inserting knife on the two-inserting roller inserts the rear end of the gauze sheet into the folding and clamping seam of the rotating drum, and the folding and clamping knife in the folding and clamping seam clamps the gauze sheet at the same time;

[0017] At the same time, the front prong lever of the gauze sheet is flipped backward and holds the part of the gauze sheet inserted for the first time;

[0018] The two-inserting roller continues to rotate to drive the two-inserting knife out of the folding and clamping seam, and the folding and clamping knife in the folding and clamping seam clamps the gauze sheet; at the same time, the rear prong lever of the gauze sheet is flipped forward and holds the part of the gauze sheet inserted for the second time;

[0019] S4, rolling, when the gauze sheet inserted for the first time and the second time is held by the two prong levers and clamped by the folding and clamping knife, it moves with the rotating drum and passes through the area between the two-inserting roller and the middle-inserting roller, the pressure roller drives the pressure head to rotate and rolls the gauze sheet; in this step, the two prong levers are located in the space between the three pressure heads;

[0020] S5, middle-inserting anti-falling, the rotating drum drives the gauze sheet to reach the upper part of the middle-inserting roller, the middle-inserting roller drives the middle-inserting knife to insert the middle part of the gauze sheet into the folding and clamping seam with suction holes on both sides, and the folding and clamping knife in the folding and clamping seam clamps the gauze sheet at the same time; the two prong levers holding the gauze sheet are flipped in opposite directions, gradually releasing the holding of the gauze sheet;

[0021] At the same time, the rotating drum continues to rotate the gauze sheet, the middle fold of the gauze sheet is gradually released, and the end of the gauze sheet inserted for the first time and the second time is sucked by the suction hole to avoid the end of the gauze sheet from falling due to gravity and causing the gauze sheet to scatter and explode;

[0022] S6, transfer after folding, after the gauze sheet is folded for the first time and the second time and the middle fold, it is coupled with the suction petals on the transfer wheel under the rotation of the rotating drum, the folded gauze sheet is sucked and transferred to the next process; in this step, the suction force of the suction petals is greater than the suction force of the suction holes on both sides of the folding and clamping seam of the rotating drum;

[0023] S7, control, in S2-S5, the swinging and flipping actions of the folding and clamping mechanism and the prong mechanism are realized by fixed cam plates and movable cam plates;

[0024] Each three folding and clamping mechanisms is a group, and the action is that the outer cam track on the fixed cam disc is in rolling contact with one of the folding and clamping cam bearings, the folding and clamping cam bearing is connected with a clamping block, the clamping block is swung, and then the folding and clamping shaft is driven to swing the folding and clamping knife, so that the gauze piece is clamped or released;

[0025] And the outer cam track on the movable cam disc is in rolling contact with the other two folding and clamping cam bearings, the folding and clamping cam bearing is connected with a clamping block, the clamping block is swung, and then the other two folding and clamping shafts are driven to swing the folding and clamping knife, so that the gauze piece is clamped or released;

[0026] Each two prong mechanisms is a group, and the action is that the inner cam track on the fixed cam disc and the movable cam disc is in rolling contact with the prong cam bearing, the prong cam bearing is connected with a swing arm, the swing arm is swung, and then the swing arm drives the prong rod to be turned over, the gauze piece is pressed or released when the prong rod is turned over;

[0027] The prong rods of the two prong mechanisms in the same group are turned over backward and turned over forward respectively in the process of clamping the gauze piece, and the one-fold part and the two-fold part of the gauze piece are clamped in turn.

[0028] The main beneficial effects of the present application are:

[0029] The bottom knife roller and the middle inserting roller are arranged at the top and the bottom of the rotating drum respectively and are located on the same center axis of the rotating drum, and the gauze piece is folded and centered during the rotation of the rotating drum.

[0030] The cutting knife roller is arranged at the side of the bottom knife roller and is tangent to the bottom knife roller, after the gauze is cut, the gauze piece is inserted into the folding and clamping gap of the rotating drum by a cutting knife of the bottom knife roller, and the first folding and transferring are carried out synchronously.

[0031] When the gauze piece is folded by the two inserting rollers, the prong mechanisms are turned over backward and turned over forward to clamp the one-fold and two-fold gauze piece ends.

[0032] When the gauze piece passes through the area between the two inserting rollers and the middle inserting roller, the pressure head on the pressure roller rolls the one-fold and two-fold gauze piece.

[0033] When the gauze piece is centered and inserted by the middle inserting roller, the adsorption holes on both sides of the folding and clamping gap adsorb the ends of the folded gauze piece that are not clamped, so as to avoid the gauze piece from being exploded.

[0034] The adsorption force of the adsorption petals on the transferring wheel is greater than the adsorption force of the adsorption holes, the folded gauze piece is adsorbed from the rotating drum and transferred.

[0035] In the process of inserting the gauze piece into the folding and clamping gap, the folding and clamping mechanism presses the end of the inserted part of the gauze piece and forms a fold.

[0036] The swinging action and the turning action of the folding and clamping mechanism and the prong mechanism are realized by the fixed cam disc and the movable cam disc.

[0037] The two inserting rollers, the pressing roller, the middle inserting roller and the transfer wheel rotate synchronously with the rotating drum to realize linkage and drive the folding and clamping mechanism and the shifting fork mechanism to cooperate with the inserting and folding gauze pieces, which is beneficial to maintaining stable operation in a high-speed running state. BRIEF DESCRIPTION OF DRAWINGS

[0038] The application will be further described below in combination with the drawings and examples:

[0039] Figure 1 It is a layout schematic diagram of the application.

[0040] Figure 2 It is a structural schematic diagram of one group of wall plates of the application connected with the rotating drum.

[0041] Figure 3 It is a front view schematic diagram of the application in which the two sides of the rotating drum cooperate with the fixed cam disc and the movable cam disc.

[0042] Figure 4 It is an isometric view of the application in which the folding and clamping mechanism and the shifting fork mechanism cooperate with the movable cam disc.

[0043] Figure 5 It is an isometric view of the application in which the folding and clamping mechanism and the shifting fork mechanism cooperate with the fixed cam disc.

[0044] Figure 6 It is Figure 3 a sectional view at A-A of the application.

[0045] Figure 7 It is Figure 3 a sectional view at B-B of the application.

[0046] Figure 8 It is a position schematic diagram of the application in which the driving wheel cooperates with the two inserting rollers, the pressing roller, the middle inserting roller and the transfer wheel.

[0047] Figure 9 It is a structural schematic diagram of the folding and clamping mechanism of the application.

[0048] Figure 10 It is a structural schematic diagram of the shifting fork mechanism of the application.

[0049] In the figure: rotating drum 1, folding and clamping slit 11, fixed cam disc 12, movable cam disc 13, driving wheel 14, cutter roller 2, bottom cutter roller 3, one inserting cutter 31, two inserting roller 4, two inserting cutter 41, pressing roller 5, pressing head 51, middle inserting roller 6, middle inserting cutter 61, transfer wheel 7, adsorption petal 71, folding and clamping mechanism 8, folding and clamping shaft 81, folding and clamping cutter 82, clamping block 83, folding and clamping cam bearing 84, shifting fork mechanism 9, shifting fork shaft 91, swing arm 92, shifting fork lever 93, shifting fork cam bearing 94. DETAILED DESCRIPTION

[0050] AsFigures 1-10 In one embodiment, a drum linkage structure includes a drum 1, a cutter roller 2, a bottom knife roller 3, a two-insert roller 4, a pressure roller 5, a middle-insert roller 6, a transfer wheel 7, a folding and clamping mechanism 8, and a fork mechanism 9. The bottom knife roller 3 and the middle-insert roller 6 are arranged on the same center axis at the top and bottom of the drum 1, respectively. The two-insert roller 4 and the pressure roller 5 are located on one side of the center axis, the transfer wheel 7 is located on the other side of the center axis, and the cutter roller 2 is tangent to the bottom knife roller 3 on one side thereof. The folding and clamping mechanism 8 and the fork mechanism 9 are connected to the drum 1 and cooperate with the fixed cam disc 12 or the movable cam disc 13 outside the drum 1. In use, the driving wheel 14 drives the linkage of multiple rollers, and the drum 1 drives the folding and clamping mechanism 8 and the fork mechanism 9 to communicate during rotation, thereby achieving the transfer and multiple folding of the gauze sheet on one drum 1, preventing the gauze sheet from exploding, and having a compact structure, small space occupation, and high-speed folding stability.

[0051] In a preferred embodiment, the drum 1 is a hollow circular drum body, a hollow shaft passes through the tooth ring plate at both ends of the hollow circular drum body and communicates with the negative pressure cavity inside the hollow circular drum body. The surface of the drum 1 is provided with a plurality of annularly arranged tooth plates, a folding and clamping gap 11 is arranged between every two tooth plates, and a folding and clamping gap with adsorption holes on both sides is arranged between every two folding and clamping gaps 11. In use, the hollow shafts at both ends of the drum 1 cooperate with the wall plates of the rack, the vacuum pump communicates with the hollow shafts, and the negative pressure cavity inside the drum 1 generates negative pressure when the drum 1 rotates, thereby forming adsorption force around the adsorption holes on both sides of the folding and clamping gap 11.

[0052] In a preferred embodiment, the hollow shafts at both ends of the drum 1 are provided with a fixed cam disc 12 and a movable cam disc 13, and the movable cam disc 13 is further provided with a driving wheel 14. The movable cam disc 13 and the driving wheel 14 rotate synchronously with the hollow shafts. In use, the fixed cam disc 12 is fixedly connected with the wall plates of the rack, and the movable cam disc 13 and the driving wheel 14 rotate synchronously with the hollow shafts.

[0053] In a preferred embodiment, the fixed cam disc 12 and the movable cam disc 13 are both provided with inner cam tracks and outer cam tracks, which cooperate with the folding and clamping mechanism 8 and the fork mechanism 9 and control the swinging and overturning thereof. In use, every three folding and clamping mechanisms 8 form a group, and every two fork mechanisms 9 form a group.

[0054] Preferably, every three folding and clamping mechanisms 8 form a group, and the action is realized by the outer cam track on the fixed cam disc 12 rolling with one of the folding and clamping cam bearings 84, driving the clamping block 83 connected with the folding and clamping cam bearing 84 to swing, thus driving the folding and clamping shaft 81 to swing, and the folding and clamping knife 82 to clamp or release the gauze piece.

[0055] Preferably, every two shifting fork mechanisms 9 form a group, and the action is realized by the inner cam track on the fixed cam disc 12 and the inner cam track on the movable cam disc 13 rolling with the shifting fork cam bearing 94, driving the swing arm 92 connected with the shifting fork cam bearing 94 to swing, thus driving the swing arm 92 to flip the shifting fork rod 93, and the shifting fork rod 93 to press or release the gauze piece.

[0056] Preferably, the inner cam track on the fixed cam disc 12 and the inner cam track on the movable cam disc 13 are staggered with each other, so as to realize the corresponding driving of the folding and clamping mechanisms 8 at different node positions.

[0057] Preferably, the outer cam track on the fixed cam disc 12 and the outer cam track on the movable cam disc 13 are staggered with each other, so as to realize the corresponding driving of the shifting fork mechanisms 9 at different node positions.

[0058] In the preferred scheme, the driven wheels connected with the two insertion rollers 4, the pressing roller 5, the middle insertion roller 6 and the transfer wheel 7 all cooperate with the driving wheel 14 of the rotating drum 1; the cutter roller 2 and the bottom cutter roller 3 are connected with the cutter motor and the bottom cutter motor respectively. In use, the rotating drum 1 rotates the driving wheel 14, and the two insertion rollers 4, the pressing roller 5, the middle insertion roller 6 and the transfer wheel 7 cooperating with the driving wheel 14 rotate synchronously to form a linkage, while the cutter roller 2 and the bottom cutter roller 3 are driven by the motors to pull the gauze and cut the gauze into gauze pieces, which are adsorbed on the bottom cutter roller 3, and inserted into the folding and clamping slot 11 of the rotating drum 1 when the bottom cutter roller 3 rotates, and transferred by the rotating drum 1.

[0059] Preferably, the bottom cutter roller 3 is connected with the bottom cutter motor, and the gear on the cutter roller 2 meshes with the gear on the bottom cutter roller 3.

[0060] In the preferred embodiment, the one knife 31, the two knives 41 and the middle knife 61 on the bottom knife roller 3, the two insertion roller 4 and the middle insertion roller 6 correspond to the folding and clamping seam 11 on the rotating drum 1; the three pressure heads 51 on one side of the pressure roller 5 are tangent to the toothed plate of the rotating drum 1; the suction holes of the suction petals 71 of the transfer wheel 7 are close to the toothed plate of the rotating drum 1. In use, the one knife 31 on the bottom knife roller 3 inserts the gauze into the folding and clamping seam 11 of the rotating drum 1 to form a first fold, the two knives 41 on the two insertion roller 4 inserts the gauze into the folding and clamping seam 11 of the rotating drum 1 to form a second fold, and the middle knife 61 on the middle insertion roller 6 inserts the gauze into the folding and clamping seam 11 of the rotating drum 1 to form a middle fold.

[0061] Preferably, the pressure roller 5 rolls the gauze after the first fold and the second fold, and the two air gaps between the three pressure heads 51 avoid the two pressure holding gauze fork rods 93.

[0062] Preferably, the hollow shaft body of the transfer wheel 7 is connected with the centrifugal fan, the hollow shaft body is connected with the suction petals 71, and the suction force of the air holes on the suction petals 71 is greater than the suction force of the suction holes on both sides of the folding and clamping seam 11 of the rotating drum.

[0063] In the preferred embodiment, the folding and clamping mechanism 8 includes a folding and clamping knife 82 connected to a folding and clamping shaft 81, a clamping block 83 connected to one end of the folding and clamping shaft 81, a folding and clamping cam bearing 84 connected to the clamping block 83, the folding and clamping shaft 81 passing through both ends of the rotating drum 1, the folding and clamping knife 82 located in the folding and clamping seam 11 of the rotating drum 1, and the folding and clamping cam bearing 84 rolling with the outer cam track. In use, the folding and clamping mechanism 8 moves with the rotating drum 1, driving the folding and clamping cam bearing 84 to roll with the outer cam track, driving the clamping block 83 to swing the folding and clamping shaft 81 at different node positions, so that the folding and clamping knife 82 swings to clamp or release the gauze with the folding and clamping seam 11.

[0064] In the preferred embodiment, the fork mechanism 9 includes a swing arm 92 connected to both ends of a fork shaft 91, and a fork rod 93 connected to the swing arm 92, one of the swing arms 92 is connected to a fork cam bearing 94, the swing arm 92 is located outside the rotating drum 1, the fork shaft 91 passes through the rotating drum 1, the fork rod 93 is located outside the rotating drum 1, and the fork cam bearing 94 rolls with the inner cam track. In use, the fork mechanism 9 moves with the rotating drum 1, driving the fork cam bearing 94 to roll with the inner cam track, driving the swing arm 92 to swing the fork shaft 91 at different node positions, so that the fork rod 93 flips to press the end of the gauze after the first fold and the second fold.

[0065] In the preferred embodiment, the rotating drum 1 rotates to drive the two inserting rollers 4, the pressing roller 5, the middle inserting roller 6 and the transfer wheel 7 to rotate synchronously, and to drive the folding and clamping mechanism 8 and the prong mechanism 9 to move synchronously, the folding and clamping knife 82 of the folding and clamping mechanism 8 swings in the folding and clamping slot 11, and the prong rod 93 of the prong mechanism 9 turns outside the rotating drum 1. In use, the folding and clamping knife 82 swings in the folding and clamping slot 11 of the rotating drum 1, and the prong rod 93 turns outside the rotating drum 1, and the folding and clamping knife 82 and the prong rod 93 cooperate to complete the inserting and folding of the gauze piece.

[0066] In the preferred embodiment, the linkage control method of the linkage and cooperation structure of the rotating drum as described above comprises the following steps:

[0067] S1, linkage, the rotating drum 1 rotates to drive the two inserting rollers 4, the pressing roller 5, the middle inserting roller 6 and the transfer wheel 7 to rotate synchronously, the bottom knife roller 3 and the cutting knife roller 2 rotate reversely and draw the gauze, and the gauze is cut at the cutting point of the bottom knife roller 3 and the cutting knife roller 2, and the cut gauze is a gauze piece of a certain specification; in this step, the vacuum pump connected with the rotating drum 1 and the centrifugal fan connected with the transfer wheel 7 are started simultaneously;

[0068] S2, the gauze piece after cutting is transferred and inserted and folded for the first time, the front end of the gauze piece is inserted into the folding and clamping slot 11 of the rotating drum 1 by the first inserting knife 31 on the bottom knife roller 3, the folding and clamping knife 82 in the folding and clamping slot 11 clamps the gauze piece at the same time, and the gauze piece on the bottom knife roller 3 is transferred to the rotating drum 1 under the continuous rotation of the rotating drum 1; the bottom knife roller 3 continues to rotate to drive the first inserting knife 31 to exit the folding and clamping slot 11, and the folding and clamping knife 82 in the folding and clamping slot 11 clamps the gauze piece;

[0069] S3, second inserting and folding, the rear end of the gauze piece is inserted into the folding and clamping slot 11 of the rotating drum 1 by the second inserting knife 41 on the two inserting rollers 4, and the folding and clamping knife 82 in the folding and clamping slot 11 clamps the gauze piece at the same time;

[0070] At the same time, the front prong rod 93 of the gauze piece turns backward and holds the first inserted and folded gauze piece;

[0071] The two inserting rollers 4 continue to rotate to drive the second inserting knife 41 to exit the folding and clamping slot 11, and the folding and clamping knife 82 in the folding and clamping slot 11 clamps the gauze piece; at the same time, the rear prong rod 93 of the gauze piece turns forward and holds the second inserted and folded gauze piece;

[0072] S4, rolling, when the first inserted and folded gauze piece and the second inserted and folded gauze piece are held by the two prong rods 93 and clamped by the folding and clamping knife 82, and move with the rotating drum 1 and pass through the area between the two inserting rollers 4 and the middle inserting roller 6, the pressing head 51 rotates to roll the gauze piece under the drive of the pressing roller 5; in this step, the two prong rods 93 are located in the space between the three pressing heads 51;

[0073] S5, middle insertion anti-falling, the drum 1 drives the gauze piece to reach the upper part of the middle insertion roller 6, the middle insertion roller 6 drives the middle insertion knife 61 to insert the middle part of the gauze piece into the folding and clamping seam with the adsorption hole on both sides, the folding and clamping knife 82 in the folding and clamping seam 11 clamps the gauze piece at the same time; the two gauze piece pressing fork levers 93 are mutually reversed, gradually releasing the pressing of the gauze piece;

[0074] At the same time, the drum 1 continues to drive the gauze piece to rotate, the middle folding part of the gauze piece is gradually released from clamping, the gauze piece end head located at the first insertion folding and the second insertion folding is adsorbed by the adsorption hole, avoiding the gauze piece end head from falling due to gravity and causing the gauze piece to scatter;

[0075] S6, folding and transferring, after the gauze piece completes the first insertion folding and the second insertion folding and the middle folding, the gauze piece is coupled with the adsorption petals 71 on the transfer wheel 7 under the rotation of the drum 1, and the folded gauze piece is adsorbed and transferred to the next process; in this step, the adsorption force of the adsorption petals 71 is greater than the adsorption force of the adsorption holes on both sides of the drum folding and clamping seam 11;

[0076] S7, control, in S2-S5, the swinging and flipping actions of the folding and clamping mechanism 8 and the fork mechanism 9 are realized by the fixed cam disc 12 and the movable cam disc 13;

[0077] Every three folding and clamping mechanisms 8 form a group, and the action is that the outer cam track on the fixed cam disc 12 rolls with one of the folding and clamping cam bearings 84 to drive the clamping block 83 connected with the folding and clamping cam bearing 84 to swing, thereby driving the folding and clamping shaft 81 to drive the folding and clamping knife 82 to swing and clamp or release the gauze piece;

[0078] And the outer cam track on the movable cam disc 13 rolls with the other two folding and clamping cam bearings 84 to drive the clamping block 83 connected with the folding and clamping cam bearing 84 to swing, thereby driving the other two folding and clamping shafts 81 to drive the folding and clamping knife 82 to swing and clamp or release the gauze piece;

[0079] Every two fork mechanisms 9 form a group, and the action is that the inner cam track on the fixed cam disc 12 and the movable cam disc 13 rolls with the fork cam bearing 94 to drive the swing arm 92 connected with the fork cam bearing 94 to swing, thereby driving the swing arm 92 to drive the fork lever 93 to flip, and the fork lever 93 flips to press or release the gauze piece;

[0080] The fork levers 93 of the same group of two fork mechanisms 9 respectively flip backward and forward during clamping the gauze piece, and sequentially clamp the one-fold part and the two-fold part of the gauze piece.

[0081] The method adopts the drum 1 to drive the second insertion and the middle insertion to form linkage of components, and also drives the folding and clamping mechanism 8 and the fork mechanism 9 to link, which is reasonable in layout, can save space, and is beneficial to continuous, multiple and uninterrupted folding of the gauze piece under high speed.

[0082] The above embodiments are only preferred technical solutions of the present application, and should not be regarded as limitations of the present application. The embodiments in the application and the features in the embodiments can be combined with each other without conflict. The protection scope of the present application should be the technical solutions recited in the claims, including equivalent replacement solutions of the technical features recited in the claims. That is, equivalent replacement improvements within this range are also within the protection scope of the present application.

Claims

1. A rotating drum linkage structure, characterized in that: It includes a rotating drum (1), a cutting roller (2), a bottom cutting roller (3), two insert rollers (4), a pressure roller (5), a middle insert roller (6), a transfer wheel (7), a clamping mechanism (8), and a shifting fork mechanism (9); the bottom cutting roller (3) and the middle insert roller (6) are respectively arranged on the same central axis at the top and bottom of the rotating drum (1), the two insert rollers (4) and the pressure roller (5) are located on one side of the central axis, the transfer wheel (7) is located on the other side of the central axis, and the cutting roller (2) is located on one side of the bottom cutting roller (3) and is tangent to it; the clamping mechanism (8) and the shifting fork mechanism (9) are connected to the rotating drum (1) and cooperate with the fixed cam disk (12) or the movable cam disk (13) on the outside of the rotating drum (1); The drum (1) is a hollow circular drum body. The hollow shaft passes through the toothed ring plates at both ends of the hollow circular drum body and communicates with the negative pressure chamber inside it. The surface of the drum (1) is provided with multiple toothed plates arranged in a ring. A folding slit (11) is provided between every two toothed plates. A folding slit with adsorption holes on both sides is provided between every two folding slits (11). The hollow shaft of the drum (1) is provided with a fixed cam disk (12) and a movable cam disk (13) at both ends. A drive wheel (14) is also provided on one side of the movable cam disk (13). The movable cam disk (13) and the drive wheel (14) rotate synchronously with the hollow shaft. Both the fixed cam disk (12) and the movable cam disk (13) are provided with an inner cam track and an outer cam track. The inner cam track and the outer cam track cooperate with the clamping mechanism (8) and the shift fork mechanism (9) to control their swing and flip. The folding clamping mechanism (8) includes a folding clamping knife (82) connected to a folding clamping shaft (81) and a clamping block (83) connected to one end of the folding clamping shaft (81). A folding clamping cam bearing (84) is connected to the clamping block (83). The folding clamping shaft (81) passes through both ends of the drum (1). The folding clamping knife (82) is located in the folding clamping slot (11) of the drum (1). The folding clamping cam bearing (84) rolls with the outer cam track. The shift fork mechanism (9) includes a swing arm (92) connected to both ends of the shift fork shaft (91) and a shift fork rod (93) connected to the swing arm (92). One of the swing arms (92) is connected to the shift fork cam bearing (94). The swing arm (92) is located outside the drum (1). The shift fork shaft (91) passes through the drum (1). The shift fork rod (93) is located outside the drum (1). The shift fork cam bearing (94) is in rolling cooperation with the inner cam trajectory.

2. The drum linkage structure according to claim 1, characterized in that: The driven wheels connected to the two insertion rollers (4), pressure roller (5), middle insertion roller (6) and transfer wheel (7) are all in cooperation with the driving wheel (14) of the drum (1); the cutter roller (2) and bottom cutter roller (3) are respectively connected to the cutter motor and the bottom cutter motor.

3. The drum linkage structure according to claim 1, characterized in that: The first insert (31), second insert (41) and middle insert (61) on the bottom insert roller (3), the second insert roller (4) and the middle insert roller (6) all correspond to the folding seam (11) on the drum (1); the three pressure heads (51) on one side of the pressure roller (5) are tangent to the toothed plate of the drum (1); the adsorption holes of the adsorption petals (71) of the transfer wheel (7) are close to the toothed plate of the drum (1).

4. The drum linkage structure according to claim 1, characterized in that: The rotating drum (1) drives the two insert rollers (4), pressure roller (5), middle insert roller (6) and transfer wheel (7) to rotate synchronously, and also drives the folding clamp mechanism (8) and the shift fork mechanism (9) to move synchronously with it. The folding clamp blade (82) of the folding clamp mechanism (8) swings in the folding clamp gap (11), and the shift fork rod (93) of the shift fork mechanism (9) flips outside the rotating drum (1).

5. The linkage control method for the drum linkage structure according to claim 4, characterized in that, It includes the following steps: S1, linkage, the rotating drum (1) drives the two insertion rollers (4), pressure roller (5), middle insertion roller (6) and transfer wheel (7) to rotate synchronously, the bottom knife roller (3) and the cutting roller (2) rotate in opposite directions and pull the yarn, and at the same time, the yarn is cut at the cutting point of the bottom knife roller (3) and the cutting roller (2), and the cut yarn is a yarn sheet of a certain specification; in this step, the vacuum pump connected to the rotating drum (1) and the centrifugal fan connected to the transfer wheel (7) start at the same time; S2, the cut gauze sheet is transferred and folded for the first time. A blade (31) on the bottom blade roller (3) inserts the front end of the gauze sheet into the folding gap (11) of the drum (1). The folding blade (82) in the folding gap (11) simultaneously clamps the gauze sheet. As the drum (1) continues to rotate, the gauze sheet on the bottom blade roller (3) is transferred to the drum (1). The bottom blade roller (3) continues to rotate, causing a blade (31) to exit the folding gap (11). The folding blade (82) in the folding gap (11) clamps the gauze sheet. S3, the second insertion fold, the two insertion blades (41) on the two insertion rollers (4) insert the rear end of the gauze sheet into the folding gap (11) of the drum (1), and the folding blades (82) in the folding gap (11) simultaneously clamp the gauze sheet; At the same time, the fork lever (93) in front of the gauze sheet flips backward and presses down on the gauze sheet part that was first inserted and folded; The second inserting roller (4) continues to rotate, driving the second inserting knife (41) to exit the folding gap (11), and the folding knife (82) inside the folding gap (11) clamps the gauze piece; at the same time, the last fork rod (93) of the gauze piece flips forward and presses down on the gauze piece part of the second insertion fold; S4, Rolling: When the gauze sheet of the first and second folds is pressed by the two fork levers (93) and clamped by the folding knife (82), it moves with the drum (1) and passes through the area between the second insertion roller (4) and the middle insertion roller (6). The pressure roller (5) drives the pressure head (51) to rotate and roll the gauze sheet. In this step, the two fork levers (93) are located in the space between the three pressure heads (51). S5, center insertion to prevent falling, the rotating drum (1) drives the gauze sheet to the upper part of the center insertion roller (6), the center insertion roller (6) drives the center insertion knife (61) to insert the center of the gauze sheet into the folded gap with suction holes on both sides, the folded clamp knife (82) in the folded gap (11) simultaneously clamps the gauze sheet; the two fork rods (93) that hold the gauze sheet flip in opposite directions, gradually releasing the pressure on the gauze sheet; At the same time, the drum (1) continues to drive the gauze sheet to rotate, and the middle fold of the gauze sheet is gradually released from clamping. The ends of the gauze sheet located at the first and second folds are attracted by the suction holes, so as to prevent the ends of the gauze sheet from falling due to its own weight and causing the sheet to break apart. S6, after folding and transfer, after the gauze sheet completes the first insertion fold, the second insertion fold and the middle fold, it is coupled with the adsorption petal (71) on the transfer wheel (7) under the rotation of the drum (1), adsorbing and transferring the folded gauze sheet to the next process; in this step, the adsorption force of the adsorption petal (71) is greater than the adsorption force of the adsorption holes on both sides of the folding gap (11) of the drum. S7, control, in S2~S5, the swinging and flipping actions of the clamping mechanism (8) and the fork mechanism (9) are achieved by the fixed cam disk (12) and the movable cam disk (13); Every three folding clamping mechanisms (8) form a group. Their action is to roll and cooperate with one of the folding clamping cam bearings (84) on the outer cam track on the fixed cam disk (12), thereby driving the clamping block (83) connected to the folding clamping cam bearing (84) to swing, thereby driving the folding clamping shaft (81) to drive the folding clamping knife (82) to swing, clamping the gauze piece or releasing the clamping. And through the rolling engagement of the outer cam track on the movable cam disk (13) with the other two folding cam bearings (84), the clamping block (83) connected to the folding cam bearing (84) is driven to swing, thereby driving the other two folding shafts (81) to swing the folding blade (82) to clamp the gauze piece or release the clamping. Each pair of shift fork mechanisms (9) forms a group. Their actions are respectively through the rolling cooperation between the inner cam trajectory on the fixed cam disk (12) and the movable cam disk (13) and the shift fork cam bearing (94), which drives the swing arm (92) connected to the shift fork cam bearing (94) to swing, thereby driving the swing arm (92) to drive the shift fork rod (93) to flip. When the shift fork rod (93) flips, it presses or releases the gauze sheet. The fork levers (93) of the two fork mechanisms (9) in the same group flip backward and forward respectively during the process of clamping the gauze piece, and clamp the first fold and the second fold of the gauze piece in turn.

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