Automatic bag collecting device for woven bag production

Abstract

The present invention relates to the field of woven bag printing and processing, and specifically to an automatic bag collecting device for woven bag production, comprising a first conveyor belt, a pressing unit, a bag collecting unit and a third conveyor belt which are arranged in sequence, the pressing unit comprising a second conveyor belt and a pressing wheel, an installation box is arranged between the second conveyor belt and the first conveyor belt, and a first sensor for detecting the number of woven bags is arranged on the installation box; the bag collecting unit comprises a base arranged at the output end of the second conveyor belt, a first linear drive is fixedly installed on the base, a working end of the first linear drive is connected to a moving base, a vertical central frame is arranged at the center of the moving base, and lifting plates are slidably installed on both sides of the moving base, and the technical solution drives two lifting plates to move alternately to the moving path of the woven bags for stacking through the moving base, and exchanges positions after the stacking is completed, thereby avoiding blockage and delay in the production process.

Description

Technical Field

[0001] The invention relates to the field of woven bag printing and processing, and in particular to an automatic bag collecting device for woven bag production. Background Art

[0002] Before the emergence of automated bag collecting equipment, the bag collecting work of the printing press was usually done manually, which not only increased the labor intensity of the workers, but also the number of bags collected was inaccurate and had certain errors. Chinese patent CN203922242U discloses an automatic bag collecting device for woven bags, which uses a conveyor belt to convey and collect woven bags. After a certain number of bags are output, the output bags need to be bundled, but the woven bags move along a single path. Bundling the stacked woven bags will affect the stacking of subsequent woven bags, and once the woven bags in the previous stack are not completely removed, the number of woven bags in the subsequent stack will be affected. Summary of the invention

[0003] In view of the above problems, an automatic bag collecting device for woven bag production is provided.

[0004] In order to solve the problems of the prior art, the technical solution adopted by the present invention is as follows: an automatic bag collecting device for woven bag production, comprising a first conveyor belt, a pressing unit, a bag collecting unit and two third conveyor belts arranged in sequence, the first conveyor belt is used to convey the woven bags, the pressing unit comprises a second conveyor belt, and a pressing wheel arranged above the working surface of the second conveyor belt, an installation box is arranged between the second conveyor belt and the first conveyor belt, and a first sensor for detecting the number of woven bags is arranged on the installation box; the bag collecting unit comprises a base arranged at the output end of the second conveyor belt, a first linear driver is fixedly installed on the base, the working end of the first linear driver is connected to a moving base, a vertical central frame is arranged at the center of the moving base, and lifting plates are slidably installed on both sides of the moving base, and a second linear driver is installed on both sides of the moving base, and the second linear driver drives the lifting plate to move in the vertical direction; the first sensor is connected to the first linear driver through a controller signal, and the first linear driver drives the moving base to reciprocate in a horizontal direction perpendicular to the moving direction of the woven bags, so that the two lifting plates are alternately moved to the output end of the second conveyor belt to stack the woven bags.

[0005] Preferably, a synchronous wheel is coaxially mounted on the transmission shaft at one end of the first conveyor belt and the second conveyor belt close to each other, and the two synchronous wheels are connected by a synchronous belt transmission; the first sensor is connected to the power source that drives the first conveyor belt and the second conveyor belt through a controller signal.

[0006] Preferably, vertically extending side baffles are respectively provided on both sides of the movable base, and a horizontal plug plate extending horizontally along the moving direction of the working end of the first linear drive is provided on the top of the side baffle, and the horizontal plug plate is inserted on both sides of the movable base; when the upper surface of the lifting material plate is in contact with the bottom end of the side baffle, the upper surface of the lifting material plate is flush with the upper surface of the second conveyor belt; a plurality of vertically extending limiting slide grooves are provided on the side baffle, and a sliding baffle is slidably installed in the limiting slide groove, and the sliding baffle is in contact with the upper surface of the lifting material plate under the action of gravity.

[0007] Preferably, a plurality of support blocks that fit the bottom surface of the transverse insertion plate are provided on the outer wall of the movable base, and a second threaded sleeve that vertically penetrates the support block is provided on the support block, and a second locking bolt is spirally installed in the second threaded sleeve, and the second locking bolt is used to lock the position of the transverse insertion plate and the side baffle.

[0008] Preferably, at least two guide rods extending horizontally along the moving direction of the working end of the first linear drive are provided at the bottom of the movable base, and a mounting seat is fixedly installed on the working end of the first linear drive, and the mounting seat is sleeved on the guide rod, and each guide rod is sleeved with two first springs, and the first springs are elastically connected to the two ends of the mounting seat respectively; a positioning block is fixedly installed on the central frame of the movable base, and a positioning hole extending horizontally along the moving direction of the woven bag is provided on the positioning block; a cross beam extending horizontally along the axial direction of the guide rod is fixedly installed on the end of the second conveyor belt facing the bag collecting unit, and two sliding seats are provided on the cross beam, and an elastic plug block is elastically installed on the sliding seat on the side facing the positioning block, and when the elastic plug block is inserted in the positioning hole, one of the lifting plates is located on the moving path of the woven bag, and the side baffles and the side walls of the central frame respectively fit the two sides of the woven bag.

[0009] Preferably, a first inclined surface is provided on the side of the elastic plug away from the center of the second conveyor belt. When the movable base moves toward the side of the center of the second conveyor belt, the edge of the positioning hole fits into the first inclined surface to press the elastic plug so that the elastic plug enters the sliding seat and disengages from the positioning hole; the central frame is provided with pre-pressing blocks on both sides of the positioning block, and a second inclined surface is provided on the side of the pre-pressing block away from the positioning block. When the elastic plug fits into the surface of the second inclined surface and moves, it enters the sliding seat.

[0010] Preferably, a first threaded sleeve is provided on a side of the sliding seat away from the elastic plug block, a first locking bolt is spirally installed in the first threaded sleeve, and the first locking bolt is used to lock the position of the sliding seat on the crossbeam.

[0011] Preferably, no sliding baffle is provided in one of the limiting slide grooves of each side baffle, and guide sleeves aligned with the limiting slide grooves without sliding baffles are provided on both sides of the movable base. A movable arm is slidably installed in the guide sleeve, and the movable arm extends along the axial direction of the guide rod. A second sensor with a working end facing downward is fixedly installed at one end of the movable arm facing the center frame, and the second sensor is used to detect the woven bags on the lifting material plate.

[0012] The transmission gear of the present invention is a gear selected from the group consisting of a gearbox and a gear shift gear, the gears of the gearbox being arranged on a horizontal axis, a gear meshing with the gear and the rack. A winding wheel is coaxially arranged on one side of the gear, and a winding wheel is wound around the winding wheel, and the free end of the belt passes through a guide wheel arranged on the bottom of the moving base. The moving base is provided with a horizontal sleeve plate extending horizontally along the axis of the guide rod, and the horizontal sleeve plate is provided with a sliding sleeve, and the sliding sleeve is fixedly connected to the free end of the belt through the guide wheel. A contact plate extending vertically downward is provided at the bottom of the sliding sleeve, and extension rods extending along the axis of the guide rod are respectively provided at both ends of the mounting seat, and a push plate is provided on the top of the extension rod. After the push plate contacts the contact plate, the contact plate and the sliding sleeve are pushed to the side away from the moving base. The sliding sleeve pulls the belt to drive the winding wheel and the gear to rotate, so that the moving arm drives the second sensor to move to above the lifting plate located on one side of the moving path of the woven bag for detection.

[0013] Preferably, a top plate extending vertically upward is provided at one end of the movable arm away from the second sensor, and the side of the top plate facing the movable base is elastically connected to the outer side of the movable base through a second spring, and the elastic force of the second spring causes the movable arm to move toward the side away from the movable base.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Firstly, the present invention drives two lifting plates to move alternately to the moving path of the woven bags for stacking through a mobile base, and exchanges positions after the stacking is completed. The two lifting plates work alternately, one for stacking and the other for transferring or bundling the woven bags. The number of subsequently stacked woven bags will not be affected by the incomplete removal of the previously stacked woven bags, which effectively avoids blockages and delays in the production process and ensures the efficient and continuous automatic bag collection work of the woven bag production.

[0016] Secondly, the present invention determines the exact position of the movable base through the adjustable side baffles and the cooperation of the sliding seat and the positioning block, can flexibly adjust the spacing according to the actual width of the woven bag, and ensures that the center frame is aligned with one side of the woven bag, and the side baffles and the side walls of the center frame are respectively attached to the two sides of the woven bag, so that woven bags of different sizes can be accurately stacked on the lifting plate.

[0017] Thirdly, the present invention detects whether the woven bags on the lifting plate located on one side of the woven bag moving path are clean through the second sensor, and promptly issues an alarm or stops the equipment from continuing to run when it detects that there are woven bags left on the lifting plate, thereby avoiding the residual woven bags affecting the stacking of subsequent woven bags, resulting in equipment failure or product quality problems. The second sensor automatically moves to the designated position for detection after the lifting plate exchanges positions, without manual intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of an automatic bag collecting device for woven bag production;

[0019] Figure 2 yes Figure 1 A local enlarged view of point A;

[0020] Figure 3 It is a three-dimensional structure of a pressing unit and a bag collecting unit of an automatic bag collecting device for woven bag production. Figure 1 ;

[0021] Figure 4 It is a front view of a pressing unit and a bag collecting unit of an automatic bag collecting device for producing woven bags;

[0022] Figure 5 It is a three-dimensional structure of a pressing unit and a bag collecting unit of an automatic bag collecting device for woven bag production. Figure 2 ;

[0023] Figure 6 yes Figure 5 A partial enlarged view of point B;

[0024] Figure 7 It is a three-dimensional structural exploded diagram of a pressing unit and a bag collecting unit of an automatic bag collecting device for woven bag production;

[0025] Figure 8 yes Figure 7 A partial enlarged view of point C;

[0026] Fig. 9 yes Figure 7 A partial enlarged view of point D;

[0027] Fig.10 yes Figure 7 A local enlarged view of point E;

[0028] Fig.11 It is a three-dimensional diagram of a bag collecting unit of an automatic bag collecting device for producing woven bags;

[0029] Fig.12 yes Fig.11 A partial enlarged view of point F.

[0030] The numbers in the figure are: 1, first conveyor belt; 2, pressing unit; 21, second conveyor belt; 211, synchronous wheel; 212, synchronous belt; 213, crossbeam; 214, sliding seat; 215, elastic plug; 216, first inclined surface; 217, first threaded sleeve; 218, first locking bolt; 22, pressing wheel; 23, mounting box; 231, first sensor; 3, bag collecting unit; 31, base; 311, first linear drive; 312, mounting seat; 313, extension rod; 314, push plate; 32, mobile base; 321, central frame; 322, second linear drive; 323, guide rod; 324, first A spring; 325, a positioning block; 326, a positioning hole; 327, a pre-pressure block; 328, a second inclined surface; 33, a lifting plate; 34, a side baffle; 341, a horizontal insert plate; 342, a limiting slide groove; 343, a sliding baffle; 35, a support block; 351, a second threaded sleeve; 352, a second locking bolt; 36, a guide sleeve; 361, a gear; 362, a winding wheel; 363, a belt; 364, a guide wheel; 37, a moving arm; 371, a second sensor; 372, a rack; 373, a top plate; 374, a second spring; 38, a horizontal sleeve plate; 381, a sliding sleeve; 382, ​​a contact plate; 4, a third conveyor belt. DETAILED DESCRIPTION

[0031] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] Reference Figures 1 to 12 :

[0033] The invention discloses an automatic bag collecting device for producing woven bags, comprising a first conveyor belt 1, a pressing unit 2, a bag collecting unit 3 and two third conveyor belts 4 which are arranged in sequence, wherein the first conveyor belt 1 is used to convey woven bags, the pressing unit 2 comprises a second conveyor belt 21, and a pressing wheel 22 which is arranged above the working surface of the second conveyor belt 21, an installation box 23 is arranged between the second conveyor belt 21 and the first conveyor belt 1, and a first sensor 231 which is used to detect the number of woven bags is arranged on the installation box 23; the bag collecting unit 3 comprises a base 31 which is arranged at the output end of the second conveyor belt 21, a first linear drive 311 is fixedly installed on the base 31, and a working end of the first linear drive 311 is connected to a moving base The seat 32 has a vertical center frame 321 in the center of the mobile base 32, and lifting plates 33 are slidably installed on both sides of the center frame 321 of the mobile base 32. A second linear driver 322 is installed on both sides of the center frame 321 of the mobile base 32, and the second linear driver 322 drives the lifting plates 33 to move in the vertical direction; the first sensor 231 is connected to the first linear driver 311 through a controller signal, and the first linear driver 311 drives the mobile base 32 to reciprocate in a horizontal direction perpendicular to the moving direction of the woven bag, so that the two lifting plates 33 are alternately moved to the output end of the second conveyor belt 21 to stack the woven bags.

[0034] In the present application, the woven bag is conveyed by the first conveyor belt 1 and moves forward along the set path. When the woven bag moves to the pressing unit 2, the woven bag enters the second conveyor belt 21 from the first conveyor belt 1. In this process, the first sensor 231 on the mounting box 23 begins to detect the number of woven bags passing through. At the same time, the pressing wheel 22 located above the working surface of the second conveyor belt 21 presses the woven bag to discharge the air in the woven bag, so that the woven bag is flatter during subsequent stacking. The first linear drive 311 drives the movable base 32 to reciprocate in a horizontal direction perpendicular to the moving direction of the woven bag. Specifically, initially, one of the lifting plates 33 moves to a suitable height under the action of the second linear drive 322. As the movable base 32 moves, the lifting plate 33 moves to the output end of the second conveyor belt 21 and begins to receive the woven bags output from the second conveyor belt 21 for stacking. When the stack of woven bags on the lifting plate 33 reaches a certain number, the first sensor 231 sends a signal to the first linear driver 311 through the controller, and the first linear driver 311 drives the mobile base 32 to move, so that another empty lifting plate 33 moves to the output end of the second conveyor belt 21 to continue stacking, and the lifting plate 33 that was previously full of woven bags moves to the end away from the second conveyor belt 21. At this time, its position corresponds to the third conveyor belt 4. The third conveyor belt 4 transports the woven bags on the lifting plate 33 away for subsequent bundling and other processing. At the same time, another lifting plate 33 continues to receive woven bags at the output end of the second conveyor belt 21 for stacking, and the cycle continues. This embodiment greatly reduces the physical labor of workers and reduces labor intensity by automating the transportation, bag collection and stacking of woven bags. The first sensor 231 is used to accurately detect the number of woven bags, avoiding errors that may be caused by manual counting, and making the number of bags collected more accurate. The two lifting plates 33 are driven by the mobile base 32 to alternately move to the woven bag moving path for stacking, and exchange positions after stacking is completed. The two lifting plates 33 work alternately, one for stacking, and the other for transferring or bundling woven bags. The number of woven bags to be stacked later will not be affected by the incomplete removal of the woven bags stacked in front, which effectively avoids blockage and delays in the production process and ensures the efficient and continuous automatic bag collection of woven bag production. The first linear drive 311 in this embodiment can be a linear slide, the second linear drive 322 can be a linear cylinder or an electric push rod, etc., and the first sensor 231 can be a common counting sensor, etc.

[0035] In order to synchronously decelerate the first conveyor belt 1 and the second conveyor belt 21 when the two lifting plates 33 exchange positions, the following features are specifically provided:

[0036] A synchronous wheel 211 is coaxially mounted on the transmission shaft at one end of the first conveyor belt 1 and the second conveyor belt 21 that are close to each other, and the two synchronous wheels 211 are connected through a synchronous belt 212; the first sensor 231 is connected to the power source that drives the first conveyor belt 1 and the second conveyor belt 21 through a controller signal.

[0037] In this embodiment, the woven bags are transported to the pressing unit 2 by the first conveyor belt 1, and the first conveyor belt 1 and the second conveyor belt 21 run at normal speed under the drive of the power source. Since the transmission shafts of the first conveyor belt 1 and the second conveyor belt 21 are close to each other at one end, and are connected by a synchronous belt 212, the two keep running synchronously. When the first sensor 231 detects that the number of woven bags reaches the set value and the two lifting plates 33 need to exchange positions, the first sensor 231 sends a signal to the power source driving the first conveyor belt 1 and the second conveyor belt 21 through the controller. After receiving the signal, the power source controls the first conveyor belt 1 and the second conveyor belt 21 to decelerate synchronously to provide time for the two lifting plates 33 to exchange positions. After the lifting plates 33 have exchanged positions, the first conveyor belt 1 and the second conveyor belt 21 return to normal operating speed and continue to transport and stack the woven bags.

[0038] In order to ensure neat stacking of woven bags of different widths, the following features are specifically set:

[0039] The movable base 32 is provided with side baffles 34 extending vertically on both sides, and a horizontal insert plate 341 (combined with the first linear drive 311) extending horizontally along the moving direction of the working end of the first linear drive 311 is provided on the top of the side baffle 34. Figure 3 and Figure 7 ), the horizontal insert plates 341 are inserted on both sides of the movable base 32; when the upper surface of the lifting plate 33 is in contact with the bottom end of the side baffle 34, the upper surface of the lifting plate 33 is flush with the upper surface of the second conveyor belt 21; a plurality of vertically extending limiting slide grooves 342 are provided on the side baffle 34, and a sliding baffle 343 (such as Fig.11 As shown), the sliding baffle 343 adheres to the upper surface of the lifting plate 33 under the action of gravity.

[0040] The outer wall of the movable base 32 is provided with a plurality of support blocks 35 (such as Fig.10 As shown), a second threaded sleeve 351 vertically penetrating the support block 35 is provided on the support block 35, and a second locking bolt 352 is spirally installed in the second threaded sleeve 351, and the second locking bolt 352 is used to lock the position of the transverse insertion plate 341 and the side baffle 34.

[0041] In this embodiment, the staff loosens the second locking bolt 352 according to the width of the woven bag, so that the horizontal insert plate 341 can move freely on both sides of the movable base 32. The horizontal insert plate 341 is horizontally slid along the moving direction of the working end of the first linear driver 311 to drive the side baffle 34 to move, and the distance between the side baffle 34 and the central frame 321 is adjusted to be slightly larger than the width of the woven bag. After adjusting the position of the side baffle 34, the second locking bolt 352 is tightened, and the position of the horizontal insert plate 341 and the side baffle 34 is locked through the second threaded sleeve 351 to ensure that the position of the side baffle 34 is fixed during the stacking process. When the lifting plate 33 rises to be flush with the upper surface of the second conveyor belt 21 under the action of the second linear driver 322, the woven bag is output from the second conveyor belt 21 to the lifting plate 33. The side baffle 34 and the central frame 321 play a lateral limiting role on the woven bag, ensuring that the woven bag is neatly arranged along the width direction on the lifting plate 33. As the woven bags continue to pile up, the sliding baffle 343 gradually descends along the limiting slide groove 342 under the action of gravity, always fitting the upper surface of the woven bags, further ensuring that the woven bags are neatly arranged in the height direction. This embodiment uses the adjustable side baffle 34 to flexibly adjust the spacing according to the actual width of the woven bags, ensuring that woven bags of different widths can be neatly stacked on the lifting plate 33, thereby improving the versatility and applicability of the equipment.

[0042] In order to ensure that when the first linear drive 311 drives the movable base 32 to reciprocate, the position of the central frame 321 can be aligned with one side of the woven bag, the following features are specifically set:

[0043] At least two guide rods 323 extending horizontally along the moving direction of the working end of the first linear drive 311 are arranged at the bottom of the mobile base 32. A mounting seat 312 (such as Figure 4 As shown in the figure, the mounting seat 312 is sleeved on the guide rod 323, and each guide rod 323 is sleeved with two first springs 324, and the first springs 324 are elastically connected to the two ends of the mounting seat 312; a positioning block 325 is fixedly installed on the central frame 321 of the mobile base 32, and a positioning hole 326 (as shown in the figure) extending horizontally along the moving direction of the woven bag is provided on the positioning block 325 Figure 6 and Fig. 9 A crossbeam 213 extending horizontally along the axis direction of the guide rod 323 is fixedly mounted on one end of the second conveyor belt 21 facing the bag receiving unit 3, and two sliding seats 214 (such as Figure 6 and Figure 8 As shown in the figure, an elastic plug block 215 is elastically installed on one side of the sliding seat 214 facing the positioning block 325. When the elastic plug block 215 is inserted into the positioning hole 326, one of the lifting plates 33 is located on the moving path of the woven bag, and the side baffles 34 and the side walls of the central frame 321 are respectively attached to the two sides of the woven bag.

[0044] Before the equipment is started, the staff can adjust the position of the sliding seat 214 on the crossbeam 213 according to the position of the woven bag on the first conveyor belt 1 to complete the calibration of the initial position. When the first linear drive 311 starts working, its working end pushes the mounting seat 312 to move along the guide rod 323. The presence of the first spring 324 enables the mounting seat 312 to drive the mobile base 32 to reciprocate in the horizontal direction perpendicular to the moving direction of the woven bag. When the mobile base 32 moves to align with the sliding seat 214 on one side, the positioning hole 326 on the positioning block 325 will cooperate with the elastic plug 215 of the sliding seat 214 on the crossbeam 213. When the elastic plug 215 is inserted into the positioning hole 326, the accurate position of the mobile base 32 is determined, ensuring that the central frame 321 is aligned with one side of the woven bag, and the side baffle 34 and the side wall of the central frame 321 are respectively attached to the two sides of the woven bag, so that the woven bag can be accurately stacked on the lifting plate 33.

[0045] In order to ensure the positioning effect of the elastic plug 215 on the positioning block 325, and the positioning effect that the positioning block 325 can be automatically released when it moves in the reverse direction, the following features are specifically set:

[0046] A first inclined surface 216 is provided on the side of the elastic plug 215 away from the center of the second conveyor belt 21. When the movable base 32 moves toward the center of the second conveyor belt 21, the edge of the positioning hole 326 fits in with the first inclined surface 216 to press the elastic plug 215 so that the elastic plug 215 enters the sliding seat 214 and disengages from the positioning hole 326; pre-pressing blocks 327 are provided on both sides of the positioning block 325 of the central frame 321, and a second inclined surface 328 is provided on the side of the pre-pressing block 327 away from the positioning block 325. When the elastic plug 215 moves in contact with the surface of the second inclined surface 328, it enters the sliding seat 214.

[0047] In this embodiment, when the first linear drive 311 drives the mobile base 32 to transpose, the elastic plug 215 preferentially contacts the pre-pressing blocks 327 on both sides of the central frame 321. As the mobile base 32 continues to move, the elastic plug 215 moves along the surface of the second inclined surface 328. During this process, the elastic plug 215 is squeezed and overcomes the elastic force to enter the sliding seat 214. Then, when the positioning hole 326 on the positioning block 325 is aligned with the elastic plug 215, the elastic plug 215 is inserted into the positioning hole 326 to lock the position of the mobile base 32. When the mobile base 32 moves in the reverse direction, the edge of the positioning hole 326 moves along the first inclined surface 216 of the elastic plug 215 and presses the elastic plug 215, so that it overcomes the elastic force and enters the sliding seat 214, thereby disengaging from the positioning hole 326 and automatically releasing the positioning relationship with the positioning hole 326, so that the mobile base 32 can smoothly move in the reverse direction, allowing another lifting plate 33 to move to the woven bag moving path for the next round of stacking.

[0048] In order to facilitate the adjustment of the position of the sliding seat 214 so as to meet the needs of collecting woven bags of different widths, the following features are specifically set:

[0049] A first threaded sleeve 217 is disposed on one side of the sliding seat 214 away from the elastic insert 215 . A first locking bolt 218 is screwed in the first threaded sleeve 217 . The first locking bolt 218 is used to lock the position of the sliding seat 214 on the crossbeam 213 .

[0050] When the position of the sliding seat 214 needs to be adjusted for woven bags of different widths, first loosen the first locking bolt 218. Since the first locking bolt 218 and the first threaded sleeve 217 are screw-matched, after loosening, the locking state of the sliding seat 214 on the crossbeam 213 is released, and the sliding seat 214 can slide freely on the crossbeam 213. After the sliding seat 214 is adjusted to a suitable position, tighten the first locking bolt 218. The first locking bolt 218 spirals forward in the first threaded sleeve 217 until its end is tightly against the crossbeam 213, and the sliding seat 214 is firmly locked on the crossbeam 213. In this way, during the operation of the equipment, the sliding seat 214 will not be displaced due to vibration or other external forces, ensuring the accuracy of positioning.

[0051] In order to detect whether the woven bags on the lifting plate 33 located on one side of the woven bag moving path are clean, and to promptly issue an alarm or stop the equipment from continuing to run when it is detected that there are woven bags left on the lifting plate 33, the following features are specifically set:

[0052] In one of the limiting sliding grooves 342 of each side baffle plate 34, no sliding baffle plate 343 is provided. Guide sleeves 36 aligned with the limiting sliding grooves 342 without the sliding baffle plate 343 are provided on both sides of the movable base 32. A movable arm 37 (such as Fig.10 As shown in the figure, the movable arm 37 extends along the axial direction of the guide rod 323, and a second sensor 371 with a working end facing downward is fixedly installed on one end of the movable arm 37 facing the central frame 321, and the second sensor 371 is used to detect the woven bag on the lifting plate 33.

[0053] In this embodiment, when one of the lifting plates 33 completes the stacking of woven bags and moves to the end away from the second conveyor belt 21 to prepare for unloading, the second sensor 371 installed on the moving arm 37 will pass through the limiting slide 342 on the side baffle 34 where the sliding baffle 343 is not provided, and move to the upper part of the position where the lifting plate 33 stores the woven bags. When the staff manually or automatically unloads the stacked woven bags through the mechanical arm, the lifting plate 33 is reset to the initial position, and the second sensor 371 detects whether there are any woven bags left on the lifting plate 33. The second sensor 371 can be a distance sensor, which determines whether there are any woven bags left by detecting the straight-line distance between the working end and the lifting plate 33, or a visual camera, etc., which makes a visual judgment by taking pictures. If the second sensor 371 detects that there are any woven bags left on the lifting plate 33, it will immediately transmit a signal to a controller connected thereto, such as a programmable logic controller PLC. After receiving the signal, the controller responds accordingly according to a preset program. If the alarm is set to sound, the controller will trigger an alarm device such as an audible and visual alarm to remind the operator that there are residual woven bags and they need to be dealt with in time. If the equipment is set to stop running, the controller will send a command to the power system of the equipment to stop the first conveyor belt 1, the second conveyor belt 21, the first linear drive 311, the second linear drive 322 and other related power components to avoid the residual woven bags affecting the subsequent stacking of woven bags, resulting in equipment failure or product quality problems.

[0054] In order to automatically realize the movement of the second sensor 371 after the lifting plate 33 exchanges positions, the following features are specifically set:

[0055] A rack 372 (such as Fig.10As shown in the figure, the mobile base 32 is located below the guide sleeve 36 and is rotatably mounted with a gear 361. The axis of the gear 361 is horizontally arranged. The gear 361 is meshed with the rack 372. A winding wheel 362 is coaxially arranged on one side of the gear 361. A belt 363 is wound around the winding wheel 362. The free end of the belt 363 passes through a guide wheel 364 arranged at the bottom of the mobile base 32. The mobile base 32 is located below the guide wheel 364 and is provided with a horizontal sleeve plate 38 extending horizontally along the axis direction of the guide rod 323. A sliding sleeve 381 is sleeved on the horizontal sleeve plate 38. The sliding sleeve 381 is fixed to the free end of the belt 363. A contact plate 382 extending vertically downward is arranged below the sliding sleeve 381, and extension rods 313 extending along the axial direction of the guide rod 323 are respectively arranged at both ends of the mounting seat 312, and a push plate 314 is arranged on the top of the extension rod 313. After the push plate 314 contacts the contact plate 382, ​​it pushes the contact plate 382 and the sliding sleeve 381 to move to the side away from the moving base 32, and the sliding sleeve 381 pulls the belt 363 to drive the winding wheel 362 and the gear 361 to rotate, so that the moving arm 37 drives the second sensor 371 to move to the top of the lifting plate 33 located on one side of the moving path of the woven bag for detection.

[0056] In this embodiment, when the first linear drive 311 drives the mounting seat 312 to move, the mobile base 32 is driven to move, and the extension rods 313 and the push plate 314 at both ends of the mounting seat 312 move accordingly. When the mobile base 32 is positioned, the mounting seat 312 can compress the first spring 324 and continue to move in this direction, and the push plate 314 gradually approaches the contact plate 382. When the push plate 314 contacts the contact plate 382, ​​the push plate 314 that continues to move pushes the contact plate 382 and the sliding sleeve 381 connected thereto, so that the sliding sleeve 381 moves on the horizontal sleeve 38 to the side away from the mobile base 32. The movement of the sliding sleeve 381 pulls the belt 363, and the belt 363 drives the winding wheel 362 to rotate. Since the winding wheel 362 is coaxially arranged with the gear 361, the gear 361 also rotates accordingly. Because the gear 361 is meshed with the rack 372, the rotation of the gear 361 drives the rack 372 and the movable arm 37 connected thereto to move in the guide sleeve 36. In this way, the movable arm 37 drives the second sensor 371 to move above the lifting plate 33 located on one side of the woven bag moving path. After the second sensor 371 moves to its position, it starts to detect the woven bag on the lower lifting plate 33. This embodiment realizes that after the lifting plate 33 changes positions, the second sensor 371 automatically moves to the specified position for detection without manual intervention.

[0057] In order to make the second sensor 371 automatically detach from the lifting plate 33 when the lifting plate 33 moves to the woven bag moving path to avoid false detection, the following features are specifically set:

[0058] A top plate 373 extending vertically upward is provided at one end of the movable arm 37 away from the second sensor 371. The side of the top plate 373 facing the movable base 32 is elastically connected to the outer side of the movable base 32 through a second spring 374. The elastic force of the second spring 374 causes the movable arm 37 to move toward the side away from the movable base 32.

[0059] In this embodiment, when the second sensor 371 is located at a suitable detection position above the lifting plate 33, the second spring 374 is in a compressed state. When the mobile base 32 moves in the opposite direction, the lifting plate 33 completes the detection task and needs to move away from the woven bag moving path. The extension rod 313 and the push plate 314 on the mounting seat 312 gradually release the thrust on the contact plate 382, ​​and the elastic force of the second spring 374 on the top plate 373 causes the moving arm 37 to gradually reset. As a result, the second sensor 371 automatically detaches from the top of the lifting plate 33 to avoid false detection during the movement of the lifting plate 33. In this embodiment, the design of the second spring 374 and the top plate 373 allows the second sensor 371 to automatically detach from the top when the lifting plate 33 moves away from the woven bag moving path, effectively avoiding false detection that may occur during the movement of the lifting plate 33. This helps to improve the accuracy of the detection results, ensure that the equipment can make a correct response according to the actual woven bag residue situation, avoid unnecessary alarms or equipment shutdowns caused by false detection, and ensure the continuity and stability of the production process.

[0060] Working principle: The woven bag is conveyed by the first conveyor belt 1 and moves forward along the set path. When the woven bag moves to the pressing unit 2, the woven bag enters the second conveyor belt 21 from the first conveyor belt 1. In this process, the first sensor 231 on the mounting box 23 begins to detect the number of woven bags passing through. The pressing wheel 22 located above the working surface of the second conveyor belt 21 presses the woven bag to discharge the air in the woven bag, making the woven bag flatter during subsequent stacking. The first linear drive 311 drives the moving base 32 to reciprocate in a horizontal direction perpendicular to the moving direction of the woven bag. Specifically, initially, one of the lifting plates 33 moves to a suitable height under the action of the second linear drive 322. As the moving base 32 moves, the lifting plate 33 moves to the output end of the second conveyor belt 21 and begins to receive the woven bags output from the second conveyor belt 21 for stacking. When the stack of woven bags on the lifting plate 33 reaches a certain number, the first sensor 231 sends a signal to the first linear driver 311 through the controller, and the first linear driver 311 drives the movable base 32 to move, so that another empty lifting plate 33 moves to the output end of the second conveyor belt 21 to continue stacking, and the lifting plate 33 previously full of woven bags moves to the end away from the second conveyor belt 21, and the lifting plate 33 full of woven bags away from the end of the second conveyor belt 21 corresponds to the third conveyor belt 4. The woven bags on the lifting plate 33 full of woven bags are transported away for subsequent bundling and other processing.

[0061] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. An automatic bag collecting device for producing woven bags, comprising a first conveyor belt (1), a pressing unit (2), a bag collecting unit (3) and two third conveyor belts (4) arranged in sequence, wherein the first conveyor belt (1) is used for conveying woven bags, and is characterized in that: The pressing unit (2) comprises a second conveyor belt (21) and a pressing wheel (22) arranged above the working surface of the second conveyor belt (21); a mounting box (23) is arranged between the second conveyor belt (21) and the first conveyor belt (1); and a first sensor (231) for detecting the number of woven bags is arranged on the mounting box (23); The bag collecting unit (3) comprises a base (31) arranged at the output end of the second conveyor belt (21), a first linear drive (311) being fixedly mounted on the base (31), a working end of the first linear drive (311) being connected to a movable base (32), a vertical central frame (321) being arranged at the center of the movable base (32), lifting plates (33) being slidably mounted on both sides of the central frame (321) of the movable base (32), a second linear drive (322) being mounted on both sides of the central frame (321), and the second linear drive (322) driving the lifting plates (33) to move in a vertical direction; The first sensor (231) is connected to the first linear driver (311) via a controller signal, and the first linear driver (311) drives the movable base (32) to reciprocate in a horizontal direction perpendicular to the moving direction of the woven bags, so that the two lifting plates (33) are alternately moved to the output end of the second conveyor belt (21) to stack the woven bags.

2. The automatic bag collecting device for woven bag production according to claim 1 is characterized in that: A synchronous wheel (211) is coaxially mounted on the transmission shafts at the ends of the first conveyor belt (1) and the second conveyor belt (21) that are close to each other, and the two synchronous wheels (211) are connected in transmission via a synchronous belt (212); The first sensor (231) is connected to a power source that drives the first conveyor belt (1) and the second conveyor belt (21) via a controller signal.

3. The automatic bag collecting device for woven bag production according to claim 1 is characterized in that: The movable base (32) is provided with vertically extending side baffles (34) on both sides, and a horizontal plug-in plate (341) extending horizontally along the moving direction of the working end of the first linear drive (311) is provided on the top of the side baffle (34), and the horizontal plug-in plate (341) is inserted on both sides of the movable base (32); When the upper surface of the lifting plate (33) is in contact with the bottom end of the side baffle (34), the upper surface of the lifting plate (33) is flush with the upper surface of the second conveyor belt (21); The side baffle plate (34) is provided with a plurality of vertically extending limiting slide grooves (342), and a sliding baffle plate (343) is slidably installed in the limiting slide groove (342). The sliding baffle plate (343) is in contact with the upper surface of the lifting plate (33) under the action of gravity.

4. The automatic bag collecting device for woven bag production according to claim 3 is characterized in that: A plurality of support blocks (35) are arranged on the outer wall of the movable base (32) and are in contact with the bottom surface of the transverse insert plate (341). The support block (35) is provided with a second threaded sleeve (351) vertically penetrating the support block (35). A second locking bolt (352) is spirally installed in the second threaded sleeve (351). The second locking bolt (352) is used to lock the position of the transverse insert plate (341) and the side baffle plate (34).

5. The automatic bag collecting device for woven bag production according to claim 3 is characterized in that: At least two guide rods (323) extending horizontally along the moving direction of the working end of the first linear drive (311) are arranged at the bottom of the movable base (32); a mounting seat (312) is fixedly mounted on the working end of the first linear drive (311); the mounting seat (312) is sleeved on the guide rods (323); each guide rod (323) is sleeved with two first springs (324); the first springs (324) are elastically connected to two ends of the mounting seat (312) respectively; A positioning block (325) is fixedly mounted on the central frame (321) of the movable base (32), and a positioning hole (326) extending horizontally along the moving direction of the woven bag is provided on the positioning block (325); A crossbeam (213) extending horizontally along the axis of the guide rod (323) is fixedly mounted on one end of the second conveyor belt (21) facing the bag collecting unit (3); two sliding seats (214) are arranged on the crossbeam (213); an elastic plug block (215) is elastically mounted on one side of the sliding seat (214) facing the positioning block (325); when the elastic plug block (215) is inserted into the positioning hole (326), one of the lifting plates (33) is located on the moving path of the woven bag, and the side baffles (34) and the side walls of the central frame (321) are respectively in contact with the two sides of the woven bag.

6. The automatic bag collecting device for woven bag production according to claim 5 is characterized in that: A first inclined surface (216) is provided on a side of the elastic plug (215) away from the center of the second conveyor belt (21); when the movable base (32) moves toward the center of the second conveyor belt (21), the edge of the positioning hole (326) abuts against the first inclined surface (216) to press the elastic plug (215) so that the elastic plug (215) enters the sliding seat (214) and leaves the positioning hole (326); The central frame (321) is provided with pre-pressing blocks (327) on both sides of the positioning block (325), and a second inclined surface (328) is provided on the side of the pre-pressing block (327) away from the positioning block (325). When the elastic plug block (215) moves in contact with the surface of the second inclined surface (328), it enters the sliding seat (214).

7. The automatic bag collecting device for woven bag production according to claim 5 is characterized in that: A first threaded sleeve (217) is provided on a side of the sliding seat (214) away from the elastic plug block (215), and a first locking bolt (218) is screwed inside the first threaded sleeve (217). The first locking bolt (218) is used to lock the position of the sliding seat (214) on the crossbeam (213).

8. The automatic bag collecting device for woven bag production according to claim 5 is characterized in that: A sliding baffle (343) is not provided in one of the limiting slide grooves (342) of each side baffle (34), and guide sleeves (36) aligned with the limiting slide grooves (342) without the sliding baffle (343) are provided on both sides of the movable base (32), and a movable arm (37) is slidably installed in the guide sleeve (36), and the movable arm (37) extends along the axis direction of the guide rod (323), and a second sensor (371) with a working end facing downward is fixedly installed at one end of the movable arm (37) facing the central frame (321), and the second sensor (371) is used to detect the woven bag on the lifting plate (33).

9. The automatic bag collecting device for woven bag production according to claim 8 is characterized in that: A rack (372) is arranged below the movable arm (37); a gear (361) is rotatably mounted on the movable base (32) below the guide sleeve (36); the axis of the gear (361) is arranged horizontally; the gear (361) is meshedly connected with the rack (372); a winding wheel (362) is coaxially arranged on one side of the gear (361); a belt (363) is wound around the winding wheel (362); and a free end of the belt (363) passes through a guide wheel (364) arranged at the bottom of the movable base (32); The movable base (32) is provided with a horizontal sleeve plate (38) extending horizontally along the axial direction of the guide rod (323) below the guide wheel (364), a sliding sleeve (381) is sleeved on the horizontal sleeve plate (38), the sliding sleeve (381) is fixedly connected to the free end of the belt (363), a contact plate (382) extending vertically downward is provided below the sliding sleeve (381), and extension rods (382) extending along the axial direction of the guide rod (323) are respectively provided at both ends of the mounting seat (312). 13), a push plate (314) is provided at the top end of the extension rod (313), and after the push plate (314) contacts the contact plate (382), it pushes the contact plate (382) and the sliding sleeve (381) to move to a side away from the movable base (32), and the sliding sleeve (381) pulls the belt (363) to drive the winding wheel (362) and the gear (361) to rotate, so that the movable arm (37) drives the second sensor (371) to move to the top of the lifting plate (33) located on one side of the woven bag moving path for detection.

10. The automatic bag collecting device for woven bag production according to claim 9, characterized in that: A top plate (373) extending vertically upward is provided at one end of the movable arm (37) away from the second sensor (371); a side of the top plate (373) facing the movable base (32) is elastically connected to the outer side of the movable base (32) via a second spring (374); and the elastic force of the second spring (374) causes the movable arm (37) to move toward a side away from the movable base (32).

Images