A bag supply device suitable for super soft bags

Abstract

The present invention discloses a bag feeding device suitable for ultra-soft bags, relating to the technical field of bag feeding for packaging machines. The device comprises a frame assembly, a paging assembly, an O-shaped conveyor belt assembly, a suction cup bracket, a bag-lifting air-blowing assembly, a buffer belt assembly, and a sidewall assembly. The paging assembly comprises a paging frame and a paging module. The paging frame is mounted on the frame assembly. The paging module is located inside the paging frame. The suction cup bracket is mounted on the paging module and is located above the O-shaped conveyor belt assembly and the buffer belt assembly. The buffer belt assembly is mounted on the frame assembly. The O-shaped conveyor belt assembly is mounted on a connecting plate at the end of the buffer belt assembly. The bag-lifting air-blowing assembly is mounted inside the paging frame and is located above the buffer belt assembly. The present invention lifts the packaging bags through negative pressure and blows air to separate adjacent packaging bags, thereby achieving effective paging and conveying of ultra-soft packaging bags, avoiding wrinkles during the paging process, and improving the overall efficiency of the packaging machine.

Description

Technical Field

[0001] The invention relates to the technical field of bag supplying for packaging machines, and in particular to a bag supplying device suitable for super-soft bags. Background Art

[0002] Existing bag feeding systems in packaging machines are mostly suitable for bags with a certain degree of hardness. The paging mechanism uses an O-belt to frictionally drive the topmost bag to achieve paging and conveying. However, when the bag material is extremely soft and there is a certain amount of static electricity between the bags, the paging mechanism's O-belt frictional drive can cause wrinkles in the bags. Therefore, the existing O-belt friction drive solution cannot effectively paging and conveying ultra-soft bags with static electricity, thus affecting the overall efficiency of the packaging machine. Summary of the Invention

[0003] The main purpose of the present invention is to provide a bag supply device suitable for ultra-soft bags to overcome the problems existing in the prior art.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A bag feeding device suitable for ultra-soft bags, comprising a frame assembly, a paging assembly, an O-shaped conveyor belt assembly, a suction cup bracket, a bag blowing assembly, a buffer belt assembly, and a sidewall assembly;

[0006] The paging assembly includes a paging frame and a paging module. The paging frame is installed on the frame assembly. The paging module is located inside the paging frame. The suction cup bracket is installed on the paging module and is located above the O-shaped conveyor belt assembly and the cache belt assembly. The cache belt assembly is installed on the frame assembly. The O-shaped conveyor belt assembly is installed on the connecting plate at the end of the cache belt assembly. The bag blowing assembly is installed inside the paging frame and is located above the cache belt assembly.

[0007] Furthermore, the sidewall assembly includes a left unit and a right unit. The left unit and the right unit have the same structure and are both mounted on the frame assembly and located on both sides of the cache belt assembly.

[0008] Furthermore, the frame assembly includes a welding frame, a first motor, a first reducer, a first nut, a first lead screw, and a first guide rail, wherein the first motor is mounted on the bottom of a mounting plate on the welding frame, the input end of the first reducer is connected to the output end of the motor, the output end of the first reducer is connected to the first lead screw through a transmission mechanism, the first nut is threadedly connected to the first lead screw, the first guide rail is fixedly connected to the first nut, and the first guide rail is slidably mounted on the mounting plate on the welding frame, and the left unit and the right unit are respectively mounted on the two first guide rails;

[0009] The first motor is used to drive the two first guide rails to move relative to each other, thereby changing the distance between the left unit and the right unit.

[0010] Furthermore, the cache belt assembly includes a motor pulley, a power synchronous belt, a second motor, a synchronous pulley, a conveyor synchronous belt, a partition, a first photoelectric sensor, an air suction pipe and a fan, the second motor is mounted on a bracket, the bracket is fixedly arranged on the welding frame, the output end of the second motor is connected to the motor pulley, the motor pulley is connected to the synchronous pulley through the power synchronous belt, the end of the conveyor synchronous belt is sleeved on the outside of the synchronous pulley, a plurality of the partitions are evenly arranged on the surface of the conveyor synchronous belt along the length direction of the conveyor synchronous belt, the first photoelectric sensor is arranged on the side of the bracket, the air suction pipe and the fan are located on the support plate inside the conveyor synchronous belt, and the fan is located below the air suction pipe;

[0011] Among them, the conveyor synchronous belt is provided with ventilation holes, and the fan is used to form negative pressure in the suction pipe, and then cooperate with the ventilation holes to make the bottom packaging bag close to the conveyor synchronous belt.

[0012] Furthermore, the left unit and the right unit each include a baffle, a support plate, a sensor bracket, a baffle, and a first proximity switch, wherein the support plate is mounted on the welded frame, the baffle is mounted on the top of the support plate, the sensor bracket is mounted on the baffle, the first proximity switch is mounted on the sensor bracket, and the baffle is rotatably connected to the sensor bracket and is located near the end of the first proximity switch;

[0013] The blocking piece is used to trigger the first proximity switch so that the first proximity switch transmits a signal to the second motor.

[0014] Furthermore, the O-shaped conveyor belt assembly includes a third motor, a third motor pulley, a third synchronous belt, a third driven pulley, a third driving pulley, an O-shaped belt, a second photoelectric sensor and an O-shaped belt bracket. The O-shaped belt bracket is installed on the connecting plate at the end of the cache belt assembly, the third motor is installed on the O-shaped belt bracket, the third motor pulley is connected to the output end of the third motor, the third motor pulley is connected to the third driven pulley through the third synchronous belt, the third driven pulley is connected to the third driving pulley through a connecting shaft, the end of the O-shaped belt is sleeved on the outside of the third driving pulley, and the second photoelectric sensor is installed on the end of the O-shaped belt bracket away from the conveyor synchronous belt.

[0015] Furthermore, the paging module includes a left paging module and a right paging module, each of which includes a guide groove plate, a vertical slider, a driving plate, a bearing, a vertical guide rail, a swing shaft, a fourth pulley, a fourth synchronous belt, a main shaft, a fourth reducer, a fourth motor and a paging bracket, the guide groove plate is mounted on the inner side wall of the paging bracket, the paging bracket is mounted on a support inside the paging frame, the fourth reducer and the fourth motor are mounted on the paging bracket through a motor bracket, the input end of the fourth reducer is connected to the output end of the fourth motor, the output end of the fourth reducer is connected to the fourth pulley, the fourth pulley is connected to another fourth pulley through the fourth synchronous belt and transmits power to the main shaft, the main shaft is connected to one end of the driving plate, the driving groove on the driving plate cooperates with the bearing, the inner hole of the bearing is connected to the swing shaft, one end of the swing shaft is connected to the vertical guide rail, and the other end moves in the guide groove of the guide groove plate with the bearing, and the vertical guide rail is slidably connected to the vertical slider;

[0016] A transverse guide rail is further provided on the inner side wall of the paging bracket, and a transverse slider is slidably connected to the transverse guide rail. The transverse slider is connected to the vertical slider through a cross slider bracket.

[0017] Furthermore, the suction cup bracket includes a joint, a first spring suction cup rod, an elbow, an air distributor block, a second proximity switch, a sensing block, a suction cup mounting bracket and a suction cup fixing block, the suction cup mounting bracket is connected to the vertical guide rail through a connecting block arranged on the top thereof, the suction cup fixing block is slidably arranged on the sliding rod near the end of the suction cup mounting bracket, the suction cup fixing block and the suction cup mounting bracket are both connected to the first spring suction cup rod, the bottom of the first spring suction cup rod is connected to the first suction cup, the top of the first spring suction cup rod is connected to the joint, the joint is connected to the elbow on the air distributor block through a hose to form a negative pressure air path, and both ends of the air distributor block are mounted on the suction cup mounting bracket;

[0018] The sensing block is mounted on the first spring suction cup rod, and the second proximity switch is mounted on the suction cup mounting bracket at a position close to the sensing block. The sensing block is used to trigger the second proximity switch, and the second proximity switch transmits a signal to the fourth motor.

[0019] Furthermore, the bag blowing assembly includes a screw mechanism, a second suction cup, a second spring suction cup rod, a suction cup fixing rod, a cylinder and an air blowing pipe, the screw mechanism is used to adjust the position of the second suction cup, the screw mechanism is connected to a bag blowing bracket, the cylinder is installed on the bag blowing bracket, the output end of the cylinder is connected to the suction cup fixing rod, the two ends of the suction cup fixing rod are connected to the second spring suction cup rod, the bottom of the second spring suction cup rod is connected to the second suction cup, the suction cup fixing rod is connected to the air blowing pipe through an air pipe fixing plate, and the air blowing pipe is arranged near the connection position of the second suction cup;

[0020] The second suction cup is used to absorb and lift the packaging bag, and the air blowing pipe is used to blow up and separate adjacent packaging bags.

[0021] Furthermore, the screw mechanism includes a slider, a copper nut, a second guide rail and a bag adjustment screw, the end of the bag adjustment screw is provided with a position indicator, the slider and the copper nut are both mounted on the left support plate of the paging frame, and the second guide rail is embedded in the slider;

[0022] When the bag-lifting adjustment screw is rotated with a hexagonal wrench, the second guide rail moves on the slider through the threaded engagement relationship between the copper nut and the bag-lifting adjustment screw, driving the bag-lifting blowing bracket and the second suction cup thereon to move.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention lifts the packaging bags by negative pressure and separates adjacent packaging bags by blowing air, which can effectively reduce the effect of static adsorption between bags, realize the effective paging and conveying of ultra-soft packaging bags, avoid wrinkles during the paging process, and improve the overall efficiency of the packaging machine;

[0025] The present invention adopts a negative pressure bag blowing method to solve the problem of electrostatic adhesion between two adjacent packaging bags. In addition, since the stacked packaging bags are compacted for a long time, there is basically no air between the packaging bags. The negative pressure bag blowing solves the adhesion problem between the packaging bags caused by vacuum, thereby improving the packaging bag paging efficiency.

[0026] The invention meets the bag supply requirements of a packaging machine for paging and conveying super-soft packaging bags with static electricity, and meets the bag supply requirements for soft bags within a certain specification range. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the external three-dimensional structure of the present invention.

[0028] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the present invention.

[0029] Figure 3 For the present invention Figure 2 A partial enlarged view of .

[0030] Figure 4 It is a schematic diagram of the frame assembly structure of the present invention.

[0031] Figure 5 It is a partial enlarged view of the interior of the frame assembly of the present invention.

[0032] Figure 6 This is a schematic structural diagram of the cache belt assembly of the present invention.

[0033] Figure 7 This is a schematic structural diagram of a single cache belt assembly of the present invention from another angle.

[0034] Figure 8 For the present invention Figure 7 A partial enlarged view of the middle end.

[0035] Figure 9 For the present invention Figure 7 A partial enlarged view of the other end.

[0036] Figure 10 For the present invention Figure 7 A partial enlarged view after the conveyor timing belt is hidden.

[0037] Figure 11 This is a schematic structural diagram of the sidewall assembly of the present invention after being installed on the welding frame.

[0038] Figure 12 It is a schematic structural diagram of the sidewall assembly of the present invention.

[0039] Figure 13 It is a schematic diagram of the left unit structure of the present invention.

[0040] Figure 14 For the present invention Figure 13 A partial enlarged view of the .

[0041] Figure 15 This is a structural schematic diagram of the O-type conveyor belt assembly of the present invention after being installed on the connecting plate of the buffer belt assembly.

[0042] Figure 16 It is a schematic structural diagram of the O-type conveyor belt assembly of the present invention.

[0043] Figure 17It is a schematic structural diagram of the O-type conveyor belt assembly of the present invention.

[0044] Figure 18 It is a structural diagram of the paging module of the present invention after being installed on the paging frame.

[0045] Figure 19 It is a structural schematic diagram of the left paging module of the present invention.

[0046] Figure 20 For the present invention Figure 19 A partial enlarged view of the .

[0047] Figure 21 This is a structural diagram of the suction cup bracket of the present invention after being installed on the left paging module.

[0048] Figure 22 It is a schematic diagram of the suction cup bracket structure of the present invention.

[0049] Figure 23 It is a structural schematic diagram of the bag blowing assembly of the present invention.

[0050] Figure 24 For the present invention Figure 23 A partial enlarged view of .

[0051] Explanation of reference numerals: 1. Frame assembly, 2. Paging frame, 3. O-shaped conveyor belt assembly, 4. Left paging module, 5. Right paging module, 6. Suction cup bracket, 7. Bag blowing assembly, 8. Buffer belt assembly, 9. Left unit, 10. Right unit;

[0052] 101. First nut, 102. First lead screw, 103. First motor, 104. First reducer, 105. First guide rail;

[0053] 301. Third motor, 302. Third motor pulley, 303. Third synchronous belt, 304. Third driven pulley, 305. Third driving pulley, 306. O-belt, 307. Second photoelectric sensor, 308. O-belt bracket;

[0054] 401. Guide plate, 402. Vertical slider, 403. Drive plate, 404. Bearing, 405. Vertical guide rail, 406. Swing shaft, 407. Fourth pulley, 408. Fourth synchronous belt, 409. Main shaft, 410. Fourth speed reducer, 411. Fourth motor, 412. Paging bracket, 413. Horizontal guide rail, 414. Horizontal slider;

[0055] 601. Connector, 602. First spring suction cup rod, 603. Elbow, 604. Air distributor, 605. Second proximity switch, 606. Sensor block, 607. Suction cup mounting bracket, 608. Suction cup fixing block;

[0056] 701. Slider, 702. Copper nut, 703. Second guide rail, 704. Bag adjustment screw, 705. Position indicator, 706. Second suction cup, 707. Second spring suction cup rod, 708. Suction cup fixing rod, 709. Cylinder, 710. Air blowing pipe, 711. Air blowing bracket;

[0057] 801. Motor pulley, 802. Power synchronous belt, 803. Second motor, 804. Synchronous pulley, 805. Conveyor synchronous belt, 806. Partition, 807. First photoelectric sensor, 808. Suction pipe, 809. Fan;

[0058] 901. Baffle, 902. Support plate, 903. Sensor bracket, 904. Baffle, 905. First proximity switch. DETAILED DESCRIPTION

[0059] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0060] Combine Figures 1 to 24 This embodiment provides a bag feeding device suitable for ultra-soft bags, including a frame assembly 1, a paging assembly, an O-shaped conveyor belt assembly 3, a suction cup bracket 6, a bag blowing assembly 7, a buffer belt assembly 8, and a sidewall assembly;

[0061] The paging assembly includes a paging frame 2 and a paging module. The paging frame 2 is installed on the frame assembly 1. The paging module is located inside the paging frame 2. The suction cup bracket 6 is installed on the paging module and is located above the O-type conveyor belt assembly 3 and the cache belt assembly 8. The cache belt assembly 8 is installed on the frame assembly 1. The O-type conveyor belt assembly 3 is installed on the connecting plate at the end of the cache belt assembly 8. The bag blowing assembly 7 is installed inside the paging frame 2 and is located above the cache belt assembly 8.

[0062] In this embodiment, the sidewall assembly includes a left unit 9 and a right unit 10 . The left unit 9 and the right unit 10 have the same structure and are both installed on the frame assembly 1 and located on both sides of the cache belt assembly 8 .

[0063] In this embodiment, the frame assembly 1 includes a welding frame, a first motor 103, a first reducer 104, a first nut 101, a first lead screw 102 and a first guide rail 105. The first motor 103 is mounted on the bottom of the mounting plate on the welding frame. The input end of the first reducer 104 is connected to the output end of the motor. The output end of the first reducer 104 is connected to the first lead screw 102 through a transmission mechanism. The first nut 101 is threadedly connected to the first lead screw 102. The first guide rail 105 is fixedly connected to the first nut 101, and the first guide rail 105 is slidably mounted on the mounting plate on the welding frame. The left unit 9 and the right unit 10 are respectively mounted on the two first guide rails 105.

[0064] The first motor 103 is used to drive the two first guide rails 105 to move relative to each other, thereby changing the distance between the left unit 9 and the right unit 10 .

[0065] Specifically, the first motor 103 inside the welding frame is connected to the first reducer 104, and the first reducer 104 transmits power to the first screw 102 through a synchronous belt and a pulley. The first screw 102 rotates driven by the synchronous belt, causing the first guide rail 105 connected to the first screw 102 through the first nut 101 to move; as the first guide rail 105 moves relative to each other, the distance between the left unit and the right unit installed on the first guide rail 105 changes to meet different product requirements.

[0066] Preferably, the first nut 101 may be a copper nut.

[0067] In this embodiment, the cache belt assembly 8 includes a motor pulley 801, a power synchronous belt 802, a second motor 803, a synchronous pulley 804, a conveying synchronous belt 805, a partition 806, a first photoelectric sensor 807, an air suction pipe 808 and a fan 809. The second motor 803 is mounted on a bracket, and the bracket is fixedly arranged on a welding frame. The output end of the second motor 803 is connected to the motor pulley 801, and the motor pulley 801 is connected to the synchronous pulley 804 through the power synchronous belt 802. The end of the conveying synchronous belt 805 is sleeved on the outside of the synchronous pulley 804, and a plurality of partitions 806 are evenly arranged on the surface of the conveying synchronous belt 805 along the length direction of the conveying synchronous belt 805. The first photoelectric sensor 807 is arranged on the side of the bracket, the suction pipe 808 and the fan 809 are located on the support plate inside the conveying synchronous belt 805, and the fan 809 is located below the suction pipe 808;

[0068] Among them, there are ventilation holes on the conveying synchronous belt 805, and the fan 809 is used to form negative pressure in the suction pipe 808, and then cooperate with the ventilation holes to make the bottom packaging bag close to the conveying synchronous belt 805.

[0069] Specifically, the two sets of second motors of the buffer belt assembly rotate in opposite directions to adjust the relative positions of the partitions 806 on the two conveyor synchronous belts 805 to meet the conveying requirements of different product phases. The conveyor synchronous belt 805 has ventilation holes and is located at a certain distance from the sensor baffle 901. The conveyor synchronous belt 805 includes an upper conveyor synchronous belt and a lower conveyor belt. A suction pipe 808 and a fan 809 are provided below the upper conveyor synchronous belt to form a negative pressure in the suction pipe 808, so that the bottom layer of packaging bags are tightly attached to the conveyor synchronous belt 805, so as to prevent the suction cups on the suction cup bracket 6 from lifting the bottom layer of bags when sucking up the upper layer of bags. When there is no packaging bag at the front of the conveyor synchronous bag 804, the photoelectric sensor 807 sends a signal to make the second motor continue to work and convey the stack of packaging bags forward.

[0070] In this embodiment, the left unit 9 and the right unit 10 each include a baffle 901, a support plate 902, a sensor bracket 903, a baffle 904, and a first proximity switch 905. The support plate 902 is mounted on a welded frame, the baffle 901 is mounted on the top of the support plate 902, the sensor bracket 903 is mounted on the baffle 901, the first proximity switch 905 is mounted on the sensor bracket 903, and the baffle 904 is rotatably connected to the sensor bracket 903 and is located near the end of the first proximity switch 905.

[0071] The blocking piece 904 is used to trigger the first proximity switch 905 so that the first proximity switch 905 transmits a signal to the second motor 803 .

[0072] Specifically, when the packaging bag is delivered to the designated position, it will hit the blocking piece 904, triggering the first proximity switch 905, causing the second motor in the buffer belt assembly 8 to stop running.

[0073] In this embodiment, the O-type conveyor belt assembly includes a third motor 301, a third motor pulley 302, a third synchronous belt 303, a third driven pulley 304, a third driving pulley 305, an O-type belt 306, a second photoelectric sensor 307 and an O-type belt bracket 308. The O-type belt bracket 308 is installed on the connecting plate at the end of the cache belt assembly 8, the third motor 301 is installed on the O-type belt bracket 308, the third motor pulley 302 is connected to the output end of the third motor 301, the third motor pulley 302 is connected to the third driven pulley 304 through the third synchronous belt 303, the third driven pulley 304 is connected to the third driving pulley 305 through the connecting shaft, the end of the O-type belt 306 is sleeved on the outside of the third driving pulley 305, and the second photoelectric sensor 307 is installed on the end of the O-type belt bracket 308 away from the conveying synchronous belt 805.

[0074] Specifically, the third driving wheel 305 rotates under the drive of the third motor 301, thereby driving the O-belt 306 to move quickly, and the packaging bag is transported forward under the action of the O-belt 306. A second photoelectric sensor 307 is provided at the front end of the O-belt 306, and a confirmation signal is given to the next workstation when the bag is in place.

[0075] In this embodiment, the paging module includes a left paging module 4 and a right paging module 5. The left paging module 4 and the right paging module 5 each include a guide groove plate 401, a vertical slider 402, a drive plate 403, a bearing 404, a vertical guide rail 405, a swing shaft 406, a fourth pulley 407, a fourth synchronous belt 408, a main shaft 409, a fourth reducer 410, a fourth motor 411 and a paging bracket 412. The guide groove plate 401 is mounted on the inner side wall of the paging bracket 412, the paging bracket 412 is mounted on a support inside the paging frame 2, and the fourth reducer 410 and the fourth motor 411 are mounted on the paging bracket 412 through a motor bracket. The input end of the fourth reducer 410 is connected to the output end of the fourth motor 411, the output end of the fourth reducer 410 is connected to the fourth pulley 407, the fourth pulley 407 is connected to another fourth pulley 407 through the fourth synchronous belt 408 and transmits power to the main shaft 409, the main shaft 409 is connected to one end of the driving plate 403, the driving groove on the driving plate 403 is matched with the bearing 404, the inner hole of the bearing 404 is connected to the swing shaft 406, one end of the swing shaft 406 is connected to the vertical guide rail 405, and the other end moves in the guide groove of the guide groove plate 401 with the bearing 404, and the vertical guide rail 405 is slidably connected to the vertical slider 402;

[0076] A transverse guide rail 413 is further provided on the inner side wall of the paging bracket 412 , and a transverse slider 414 is slidably connected to the transverse guide rail 413 . The transverse slider 414 is connected to the vertical slider 402 via a cross slider bracket.

[0077] Specifically, the main shaft 409 rotates under the action of the fourth pulley 407, the fourth synchronous belt 408, the fourth reducer 410, and the fourth motor 411, driving the drive plate 403 to swing, and the swing shaft 406 is equipped with a vertical guide rail and a bearing. The swing shaft 406 moves along the guide groove driven by the drive plate 403 through the bearing 404; at the same time, the vertical guide rail 405 moves in a plane under the restriction of the vertical slider 402 and the transverse guide rail 413 and the transverse slider 414, driving the suction cup bracket 6 to move.

[0078] In this embodiment, the suction cup bracket 6 includes a joint 601, a first spring suction cup rod 602, an elbow 603, an air distributor block 604, a second proximity switch 605, a sensing block 606, a suction cup mounting bracket 607 and a suction cup fixing block 608. The suction cup mounting bracket 607 is connected to the vertical guide rail 405 through a connecting block provided on the top thereof. The suction cup fixing block 608 is slidably provided on the sliding rod near the end of the suction cup mounting bracket 607. The suction cup fixing block 608 and the suction cup mounting bracket 607 are both connected to the first spring suction cup rod 602. The bottom of the first spring suction cup rod 602 is connected to the first suction cup. The top of the first spring suction cup rod 602 is connected to the joint 601. The joint 601 is connected to the elbow 603 on the air distributor block 604 through a hose to form a negative pressure air path. Both ends of the air distributor block 604 are installed on the suction cup mounting bracket 607.

[0079] The sensing block 606 is mounted on the first spring suction cup rod 602 , and the second proximity switch 605 is mounted on the suction cup mounting bracket 607 near the sensing block 606 . The sensing block 606 is used to trigger the second proximity switch 605 , and the second proximity switch 605 transmits a signal to the fourth motor 411 .

[0080] Specifically, the first spring suction cup rod 602 is connected to the air distribution block 604 via a connector 601, a hose, and an elbow 603, forming a negative pressure air passage. A sensor block 606 is provided on the first spring suction cup rod 602. When the first spring suction cup rod 602 contacts the packaging bag and is compressed to a certain distance, the sensor block 606 triggers the second proximity switch 605, causing the fourth motor 411 of the paging module to stop. A suction cup fixing block 608 is slidably mounted on a slide rod near the end of the suction cup mounting bracket 607. By moving the suction cup fixing block 608, the position of the first suction cup can be changed to accommodate different product types.

[0081] In this embodiment, the bag blowing assembly 7 includes a screw mechanism, a second suction cup 706, a second spring suction cup rod 707, a suction cup fixing rod 708, a cylinder 709 and an air blowing pipe 710. The screw mechanism is used to adjust the position of the second suction cup 706. The screw mechanism is connected to a bag blowing bracket 711. The cylinder 709 is installed on the bag blowing bracket 711. The output end of the cylinder 709 is connected to the suction cup fixing rod 708. The two ends of the suction cup fixing rod 708 are connected to the second spring suction cup rod 707. The bottom of the second spring suction cup rod 707 is connected to the second suction cup 706. The suction cup fixing rod 708 is connected to the air blowing pipe 710 through an air pipe fixing plate. The air blowing pipe 710 is arranged near the connection position of the second suction cup 706.

[0082] The second suction cup 706 is used to suck and lift the packaging bag, and the air blowing tube 710 is used to blow up and separate adjacent packaging bags.

[0083] Specifically, the suction cup fixing rod 708 moves back and forth under the action of the cylinder 709, causing the second spring suction cup rod 707 installed on the suction cup fixing rod 708 to move, and the second suction cup 706 on the second spring suction cup rod 707 absorbs and lifts the packaging bag. At the same time, the hole in the blowing tube 710 is opened to blow air briefly to separate the packaging bag.

[0084] Furthermore, the screw mechanism includes a slider 701, a copper nut 702, a second guide rail 703, and a bag adjustment screw 704. A position indicator 705 is provided at the end of the bag adjustment screw 704. The slider 701 and the copper nut 702 are both mounted on the left support plate of the paging frame 2, and the second guide rail 703 is embedded in the slider 701.

[0085] When the bag adjusting screw 704 is rotated with a hexagonal wrench, the second guide rail 703 moves on the slider 701 through the threaded engagement relationship between the copper nut 702 and the bag adjusting screw 704, driving the bag blowing bracket 711 and the second suction cup 706 thereon to move.

[0086] Specifically, a hexagonal wrench groove is processed at one end of the bag adjusting screw 704, and the operator uses the hexagonal wrench to rotate the bag adjusting screw 704 to drive the second suction cup 706 to adjust its position.

[0087] Working principle:

[0088] A certain number of stacked packaging bags are placed in the compartment formed by the partition 806 on the two conveyor synchronous belts 805 in the buffer belt assembly 8, and the second motor 803 is started to drive the two conveyor synchronous belts 805 to operate. When the stacked packaging bags move forward and hit the baffles 904 of the left and right units, the first proximity switch 905 is triggered, and the second motor 803 stops running.

[0089] The suction cup fixing rod 708 in the bag blowing assembly 7 moves downward under the action of the cylinder 709, so that the second spring suction cup rod 707 installed on the suction cup fixing rod 708 moves, the second suction cup 706 contacts the packaging bag and lifts it with negative pressure, and the blowing pipe 710 blows air briefly to separate the packaging bag on the top layer from the adjacent packaging bag on the lower layer, without blowing the upper bag too high to affect the relative position of the bags.

[0090] Next, the fourth motor 411 in the left and right paging modules reciprocates, causing the first suction cup on the suction cup bracket 6 to suck air from the bag, lift it, and transport it to the O-belt 306 of the O-belt conveyor assembly 3. Once the bag is in place, the second photoelectric sensor 307 is triggered, and the previous station continues the cycle. When the last bag in the stack is lifted, neither the first proximity switch 905 nor the first photoelectric sensor 807 signals, and the second motor 803 is activated to transport the stack of bags to the next station, repeating the cycle.

[0091] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A bag supply device suitable for ultra-soft bags, characterized in that: It includes a frame assembly (1), a paging assembly, an O-type conveyor belt assembly (3), a suction cup bracket (6), a bag blowing assembly (7), a buffer belt assembly (8) and a sidewall assembly; The paging assembly comprises a paging frame (2) and a paging module, wherein the paging frame (2) is mounted on the frame assembly (1), the paging module is located inside the paging frame (2), the suction cup bracket (6) is mounted on the paging module and is located above the O-type conveyor belt assembly (3) and the buffer belt assembly (8), the buffer belt assembly (8) is mounted on the frame assembly (1), the O-type conveyor belt assembly (3) is mounted on the connecting plate at the end of the buffer belt assembly (8), and the bag blowing assembly (7) is mounted on the paging frame. The paging module comprises a left paging module (4) and a right paging module (5), and the left paging module (4) and the right paging module (5) each comprise a guide plate (401), a vertical slider (402), a drive plate (403), a bearing (404), a vertical guide rail (405), a swing shaft (406), a fourth pulley (407), a fourth synchronous belt (408), a main shaft (409), a fourth speed reducer (410), a fourth motor (411) and a paging bracket (412), wherein the guide plate (401) is mounted on the inner side wall of the paging bracket (412), the paging bracket (412) is mounted on the support inside the paging frame (2), the fourth reducer (410) and the fourth motor (411) are mounted on the paging bracket (412) through the motor bracket, the input end of the fourth reducer (410) is connected to the output end of the fourth motor (411), the output end of the fourth reducer (410) is connected to the fourth pulley (407), and the fourth pulley (407) is connected to another through the fourth synchronous belt (408). A fourth pulley (407) is connected and transmits power to the main shaft (409), the main shaft (409) is connected to one end of the driving plate (403), the driving groove on the driving plate (403) cooperates with the bearing (404), the inner hole of the bearing (404) is connected to the swing shaft (406), one end of the swing shaft (406) is connected to the vertical guide rail (405), and the other end moves with the bearing (404) in the guide groove of the guide groove plate (401), and the vertical guide rail (405) is slidably connected to the vertical slider (402); A transverse guide rail (413) is further provided on the inner side wall of the paging bracket (412), a transverse slider (414) is slidably connected to the transverse guide rail (413), and the transverse slider (414) is connected to the vertical slider (402) via a cross slider bracket; The suction cup bracket (6) includes a joint (601), a first spring suction cup rod (602), an elbow (603), an air distributor block (604), a second proximity switch (605), a sensor block (606), a suction cup mounting frame (607) and a suction cup fixing block (608). The suction cup mounting frame (607) is connected to the vertical guide rail (405) via a connecting block provided on the top thereof. The suction cup fixing block (608) is slidably provided on a sliding rod near the end of the suction cup mounting frame (607). The first spring sucker rod (602) is connected to both the disc fixing block (608) and the sucker mounting frame (607); the bottom of the first spring sucker rod (602) is connected to the first sucker; the top of the first spring sucker rod (602) is connected to the joint (601); the joint (601) is connected to the elbow (603) on the air distribution block (604) through a hose to form a negative pressure air passage; both ends of the air distribution block (604) are mounted on the sucker mounting frame (607); The sensing block (606) is mounted on the first spring suction cup rod (602), and the second proximity switch (605) is mounted on the suction cup mounting frame (607) at a position close to the sensing block (606). The sensing block (606) is used to trigger the second proximity switch (605), and the second proximity switch (605) transmits a signal to the fourth motor (411).

2. A bag supply device suitable for ultra-soft bags as claimed in claim 1, characterized in that: The side guard assembly comprises a left unit (9) and a right unit (10). The left unit (9) and the right unit (10) have the same structure and are both mounted on the frame assembly (1) and located on both sides of the buffer belt assembly (8).

3. A bag supply device suitable for ultra-soft bags as claimed in claim 2, characterized in that: The frame assembly (1) includes a welding frame, a first motor (103), a first reducer (104), a first nut (101), a first lead screw (102) and a first guide rail (105), wherein the first motor (103) is mounted on the bottom of a mounting plate on the welding frame, the input end of the first reducer (104) is connected to the output end of the motor, the output end of the first reducer (104) is connected to the first lead screw (102) through a transmission mechanism, the first nut (101) is threadedly connected to the first lead screw (102), the first guide rail (105) is fixedly connected to the first nut (101), and the first guide rail (105) is slidably mounted on the mounting plate on the welding frame, and the left unit (9) and the right unit (10) are respectively mounted on the two first guide rails (105); The first motor (103) is used to drive the two first guide rails (105) to move relative to each other, thereby changing the distance between the left unit (9) and the right unit (10).

4. A bag supply device suitable for ultra-soft bags as claimed in claim 3, characterized in that: The buffer belt assembly (8) comprises a motor pulley (801), a power synchronous belt (802), a second motor (803), a synchronous pulley (804), a conveying synchronous belt (805), a partition (806), a first photoelectric sensor (807), an air suction pipe (808) and a fan (809), wherein the second motor (803) is mounted on a bracket, and the bracket is fixedly arranged on the welding frame, and the output end of the second motor (803) is connected to the motor pulley (801), and the motor pulley (801) is connected to the power synchronous belt (802). 02) is connected to the synchronous pulley (804), the end of the conveying synchronous belt (805) is sleeved on the outside of the synchronous pulley (804), a plurality of the partitions (806) are evenly arranged on the surface of the conveying synchronous belt (805) along the length direction of the conveying synchronous belt (805), the first photoelectric sensor (807) is arranged on the side of the bracket, the suction pipe (808) and the fan (809) are located on the support plate inside the conveying synchronous belt (805), and the fan (809) is located below the suction pipe (808); The conveyor synchronous belt (805) is provided with ventilation holes, and the fan (809) is used to form negative pressure in the suction pipe (808), and then cooperate with the ventilation holes to make the bottom packaging bag close to the conveyor synchronous belt (805).

5. A bag supply device suitable for ultra-soft bags as claimed in claim 4, characterized in that: The left unit (9) and the right unit (10) both comprise a baffle (901), a support plate (902), a sensor bracket (903), a baffle (904) and a first proximity switch (905), wherein the support plate (902) is mounted on the welding frame, the baffle (901) is mounted on the top of the support plate (902), the sensor bracket (903) is mounted on the baffle (901), the first proximity switch (905) is mounted on the sensor bracket (903), and the baffle (904) is rotatably connected to the sensor bracket (903) and is located near the end of the first proximity switch (905); The blocking piece (904) is used to trigger the first proximity switch (905), so that the first proximity switch (905) transmits a signal to the second motor (803).

6. A bag supply device suitable for ultra-soft bags as claimed in claim 5, characterized in that: The O-shaped conveyor belt assembly comprises a third motor (301), a third motor pulley (302), a third synchronous belt (303), a third driven pulley (304), a third driving pulley (305), an O-shaped belt (306), a second photoelectric sensor (307) and an O-shaped belt bracket (308), wherein the O-shaped belt bracket (308) is mounted on a connecting plate at the end of the buffer belt assembly (8), the third motor (301) is mounted on the O-shaped belt bracket (308), and the third motor pulley (302) is mounted on the O-shaped belt bracket (308). The third motor pulley (302) is connected to the output end of the third motor (301), the third motor pulley (302) is connected to the third driven pulley (304) through the third synchronous belt (303), the third driven pulley (304) is connected to the third driving pulley (305) through a connecting shaft, the end of the O-belt (306) is sleeved on the outside of the third driving pulley (305), and the second photoelectric sensor (307) is installed on the end of the O-belt bracket (308) away from the conveying synchronous belt (805).

7. A bag supply device suitable for ultra-soft bags as claimed in claim 1, characterized in that: The bag blowing assembly (7) includes a screw mechanism, a second suction cup (706), a second spring suction cup rod (707), a suction cup fixing rod (708), a cylinder (709) and a blowing pipe (710), wherein the screw mechanism is used to adjust the position of the second suction cup (706), the screw mechanism is connected to a bag blowing bracket (711), the cylinder (709) is mounted on the bag blowing bracket (711), the output end of the cylinder (709) is connected to the suction cup fixing rod (708), the two ends of the suction cup fixing rod (708) are connected to the second spring suction cup rod (707), the bottom of the second spring suction cup rod (707) is connected to the second suction cup (706), the suction cup fixing rod (708) is connected to the blowing pipe (710) through an air pipe fixing plate, and the blowing pipe (710) is arranged at a position close to the connection with the second suction cup (706); The second suction cup (706) is used to suck and lift the packaging bag, and the air blowing tube (710) is used to blow up and separate adjacent packaging bags.

8. A bag supply device suitable for ultra-soft bags as claimed in claim 7, characterized in that: The screw mechanism comprises a slider (701), a copper nut (702), a second guide rail (703) and a bag-lifting adjustment screw (704); a position indicator (705) is provided at the end of the bag-lifting adjustment screw (704); the slider (701) and the copper nut (702) are both mounted on the left support plate of the paging frame (2); and the second guide rail (703) is embedded in the slider (701); When the bag-lifting adjustment screw (704) is rotated by a hexagonal wrench, the second guide rail (703) moves on the slider (701) through the threaded engagement relationship between the copper nut (702) and the bag-lifting adjustment screw (704), thereby driving the bag-lifting blowing bracket (711) and the second suction cup (706) thereon to move.

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