Ton bag packaging line

Abstract

The invention discloses a ton bag packaging line which comprises a plurality of conveyors, a metering bin, a bag stacking device, an automatic pallet warehouse and a bag pressing device, the metering bin, the bag stacking device, the automatic pallet warehouse and the bag pressing device are sequentially arranged along the conveyors, a large arc door and a small arc door are connected below the metering bin, a material pipe is connected below the large arc door and the small arc door, and a plurality of ton bag lifting hooks are arranged on the outer side of the material pipe in a surrounding mode. A material pipe is arranged in the bag stacking device, a shear fork type lifting table for bearing the corresponding conveyor is arranged under the material pipe, a weighing sensor for bearing the corresponding conveyor is arranged on the downstream side of the shear fork type lifting table, the bag stacking device is used for stacking ton bags, and the automatic pallet warehouse is used for supplying pallets to the bag stacking device. In this way, according to the ton bag packaging line, materials are rapidly filled through the metering stock bin, stacking and tray filling are rapidly achieved under the cooperation of the bag stacking device and the automatic pallet warehouse, ton bag shaping and exhausting are achieved at a high speed through the bag pressing device, and therefore manual operation is replaced, and the productivity is greatly improved.

Description

Technical Field

[0001] The invention relates to the field of packaging equipment, in particular to a ton bag packaging line. Background Art

[0002] Chemical companies usually use ton bags to package toxic and hazardous particulate materials. The packaging operation is generally done manually. During the material filling process, the material in the ton bag has a high gas content, and it is easy to form a material pile during the unloading process. Due to the large weight of the ton bag, the existing single-machine equipment cannot quickly complete the exhaust and shaping during the filling process, so the utilization rate of the ton bag is greatly reduced, resulting in high logistics and transportation costs, and seriously affecting production efficiency. The packaged ton bags are mainly stacked and stored by cranes. The stacking process requires manual operation to assist the operation, which not only poses a safety risk, but also has a low stacking density and high storage costs, which is difficult to meet production needs. Summary of the invention

[0003] The main technical problem solved by the present invention is to provide a ton bag packaging line, which can quickly fill materials through a metering silo, and quickly stack and palletize with the cooperation of a bag stacking device and an automatic pallet warehouse, while using a bag pressing device to quickly shape and exhaust the ton bags, thereby replacing manual work and greatly improving production capacity.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a ton bag packaging line, including several conveyors and metering silos, bag stacking devices, automatic pallet warehouses and bag pressing devices arranged in sequence along the conveyors, the metering silos are connected with large and small arc gates below, the large and small arc gates are connected with a material pipe below, several ton bag hooks are arranged around the outside of the material pipe, a scissor-type lifting platform carrying the corresponding conveyor is arranged directly below the material pipe, a weighing sensor carrying the corresponding conveyor is arranged on the downstream side of the scissor-type lifting platform, the bag stacking device is used to stack the ton bags, the automatic pallet warehouse is used to supply pallets to the bag stacking device, the bag pressing device is used to squeeze, shape and exhaust the ton bags, a strapping machine and a wrapping machine are arranged in sequence on the downstream side of the bag pressing device, the wrapping machine is connected to a stacking roller line behind, and the stacking roller line is equipped with a forklift; A cage-type frame is arranged along the conveyor, the conveyor is located at the bottom center of the cage-type frame, a servo motor is arranged on the top of the cage-type frame, the servo motor is externally connected with a transmission shaft, the transmission shaft is connected to a main frame through a coupling and multiple sets of synchronous belt pulleys and / or multiple sets of chain sprockets, the cage-type frame is symmetrically provided with a plurality of Z-axis guide rails on both sides of the conveyor, the Z-axis guide rails are movably connected to the main frame, the main frame is located directly above the conveyor, and is used for integrating a bag stacking device or a bag pressing device.

[0005] In a preferred embodiment of the present invention, the bag stacking device and the bag pressing device each include four baffles, which are vertically distributed on the inner periphery of the main frame in a rectangular cylinder structure, and a press vertically connected to the baffles is provided on the main frame, and the baffles surround and form a ton bag clamping space.

[0006] In a preferred embodiment of the present invention, the main frame is a rectangular frame structure, each side is provided with a structural sub-frame parallel to the corresponding baffle, the structural sub-frame and the main frame are provided with a plurality of linear slide rails perpendicular to the baffles, the linear slide rails are provided with cantilevers in parallel, and the cantilevers are connected to the corresponding baffles.

[0007] In a preferred embodiment of the present invention, the stacking device includes two right-angled support plates, the baffle includes two front and rear baffles and two side baffles, the two ends of the right-angled support plates are aligned with the front and rear baffles, the inner corners of the right-angled support plates are matched with the lower edges of the side baffles, the right-angled support plates are movably suspended on the outer walls of the side baffles through a flip axis, and the side baffles are driven by an external drive through a sprocket chain.

[0008] In a preferred embodiment of the present invention, the driver includes a bearing seat and a gear box, the gear box encapsulates a gear shaft mounted on the bearing seat, the gear box is provided with a short Z-axis slide rail, an adapter plate is installed on the short Z-axis slide rail, a rack meshing with the gear shaft is provided on the adapter plate, the adapter plate is connected to a small press arranged outside the gear box, and the gear shaft is connected to the flip shaft through a sprocket chain transmission.

[0009] In a preferred embodiment of the present invention, the pressing device also includes a sub-frame hoisted on the top of the cage frame, a heavy-duty hydraulic cylinder is hoisted vertically downward in the sub-frame, and the sub-frame is provided with a plurality of oil-free bushing guide rods around the heavy-duty hydraulic cylinder, a horizontally arranged pressure plate is connected under the oil-free bushing guide rod, the heavy-duty hydraulic cylinder is connected to the pressure plate, and the pressure plate is centered on the main frame.

[0010] In a preferred embodiment of the present invention, the cage-type rack includes a rack one and a rack two, the rack one is integrated with a stacking device, the rack two is integrated with a pressing device, the racks one and two are connected by a rotating conveyor, and the rotating conveyor is also connected to an automatic pallet warehouse.

[0011] In a preferred embodiment of the present invention, the automatic pallet warehouse includes a warehouse frame, the warehouse frame is provided with an in-warehouse conveyor docking with a rotating conveyor, the in-warehouse conveyor is a roller conveyor, a plurality of guide baffles are vertically arranged in the warehouse frame and surround the in-warehouse conveyor in a semi-enclosed structure, pallet separation brackets are arranged on both sides of the in-warehouse conveyor, small Z-axis linear rails connected to the pallet separation brackets are arranged on both sides of the warehouse frame, and a lifting press is connected to the pallet separation bracket.

[0012] The beneficial effects of the present invention are as follows: the ton bag packaging line provided by the present invention can quickly fill materials through the metering silo, and quickly stack and palletize with the cooperation of the bag stacking device and the automatic pallet warehouse, and at the same time use the bag pressing device to quickly realize the shaping and exhaust of the ton bags, thereby replacing manual work and greatly improving production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which: Figure 1 This is a whole line structure diagram of a ton bag packaging line of the present invention; Figure 2 It is the structural diagram of the metering silo; Figure 3 It is the structural diagram of the scissor lift; Figure 4 It is the structural diagram of the weighing sensor; Figure 5 It is the structural diagram of the cage rack; Figure 6 It is the structural diagram of the main frame; Figure 7 It is the structural diagram of the right-angle support plate; Figure 8 It is the structural diagram of the gearbox; Fig. 9 This is the structural diagram of a heavy-duty hydraulic cylinder; Fig.10 It is the structural diagram of the automatic pallet library; Fig.11 It is the process flow chart of the whole line; Fig.12 It is a top view of the bag pressing device; Fig.13 It is a structural diagram of the pressing device; Fig.14 This is the structural diagram of the gearbox. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] like Figure 1-14As shown, the embodiment of the present invention includes: A ton bag packaging line comprises a plurality of conveyors 1 and metering silos 2, a bag stacking device 3, an automatic pallet warehouse 4 and a bag pressing device 5 which are sequentially arranged along the conveyor 1, wherein the metering silo 2 is connected with a large and small arc gate 2a below, and a material pipe 2b is connected with the large and small arc gate 2a below, and a plurality of ton bag hooks 2c are arranged around the outer side of the material pipe 2b, and a scissor-type lifting platform 2d carrying the corresponding conveyor 1 is arranged directly below the material pipe 2b, and a weighing sensor 2e carrying the corresponding conveyor 1 is arranged on the downstream side of the scissor-type lifting platform 2d, the bag stacking device 3 is used to stack ton bags 100, the automatic pallet warehouse 4 is used to supply pallets 200 to the bag stacking device 3, the bag pressing device 5 is used to squeeze, shape and exhaust the ton bags 100, and a strapping machine 6 and a wrapping machine 7 are sequentially arranged on the downstream side of the bag pressing device 5, and a stacking roller line 8 is connected to the wrapping machine 7, and the stacking roller line 8 is equipped with a forklift 8a; A cage frame 9 is arranged along the conveyor 1, and the conveyor 1 is located at the bottom center of the cage frame 9. A servo motor 9a is arranged on the top of the cage frame 9. The servo motor 9a is externally connected to a transmission shaft 9b. The transmission shaft 9b is connected to a main frame 9c through a coupling and multiple sets of synchronous belt pulleys and / or multiple sets of chain sprockets. The cage frame 9 is symmetrically provided with a plurality of Z-axis guide rails 9d on both sides of the conveyor 1. The Z-axis guide rails 9d are movably connected to the main frame 9c. The main frame 9c is located directly above the conveyor 1 for integrating a stacking device 3 or a pressing device 5.

[0016] Among them, the bag stacking device 3 and the bag pressing device 5 both include four baffles 35a, and the baffles 35a are vertically distributed on the inner periphery of the main frame 9c in a rectangular cylinder structure. A press machine 9d vertically connected to the baffles 35a is arranged on the main frame 9c, and the baffles 35a surround and form a ton bag clamping space.

[0017] Furthermore, the main frame 9c is a rectangular frame structure, and each side is provided with a sub-frame 9e parallel to the corresponding baffle 35a. The sub-frame 9e and the main frame 9c are provided with a plurality of linear slide rails 9f perpendicular to each baffle 35a. The linear slide rail 9f is provided with a cantilever 9g in parallel, and the cantilever 9g is connected to the corresponding baffle 35a.

[0018] Furthermore, the stacking device 3 includes two right-angle support plates 3a, the baffle 35a includes two front and rear baffles 35a1 and two side baffles 35a2, the two ends of the right-angle support plate 3a are aligned with the front and rear baffles 35a1, the inner corner of the right-angle support plate 3a is matched with the lower edge of the side baffle 35a2, the right-angle support plate 3a is movably suspended on the outer wall of the side baffle 35a2 through the flip shaft 3b, and the side baffle 35a2 is driven by an external drive through a sprocket chain.

[0019] Furthermore, the driver includes a bearing seat 35b and a gear box 35c, the gear box 35c encapsulates a gear shaft 35d mounted on the bearing seat 35b, the gear box 35c is provided with a Z-axis short slide rail 35e, the Z-axis short slide rail 35e is installed with an adapter plate 35f, the adapter plate 35f is provided with a rack meshing with the gear shaft 35d, the adapter plate 35f is connected to a small press 35g arranged outside the gear box 35c, and the gear shaft 35d is connected to the flip shaft 3b through a sprocket chain transmission.

[0020] Furthermore, the pressing device 5 also includes a sub-frame 5a hoisted on the top of the cage frame 9, and a heavy-duty hydraulic cylinder 5b is hoisted vertically downward in the sub-frame 5a. The sub-frame 5a is provided with a plurality of oil-free bushing guide rods 5c around the heavy-duty hydraulic cylinder 5b, and the oil-free bushing guide rods 5c are connected to a horizontally arranged pressure plate 5d. The heavy-duty hydraulic cylinder 5b is connected to the pressure plate 5d, and the pressure plate 5d is centered on the main frame 9c.

[0021] Furthermore, the cage-type rack 9 includes a rack 1 901 and a rack 2 902, the rack 1 901 is integrated with a stacking device 3, the rack 2 902 is integrated with a pressing device 5, and the rack 1 901 and the rack 2 902 are connected by a rotating conveyor 1a, and the rotating conveyor 1a is also connected to an automatic pallet warehouse 4.

[0022] Furthermore, the automatic pallet warehouse 4 includes a warehouse frame 4a, and the warehouse frame 4a is provided with an in-warehouse conveyor 4b docking with the rotating conveyor 1a, and the in-warehouse conveyor 4b is a roller conveyor. A plurality of guide baffles 4c are vertically arranged in the warehouse frame 4a, which surround the in-warehouse conveyor 4b in a semi-enclosed structure, and pallet separation brackets 4d are arranged on both sides of the in-warehouse conveyor 4b. Small Z-axis linear rails 4e connected to the pallet separation bracket 4d are arranged on both sides of the warehouse frame 4a, and a lifting press 4f is connected to the pallet separation bracket 4d.

[0023] The complete line of this application has a wide range of uses, including: chemical raw materials, pharmaceutical raw materials, plastic raw materials, food additives, feed additives, metallurgical powders and all other industries suitable for ton bag packaging.

[0024] This embodiment introduces the application of the production line in the ton bag packaging of polyformaldehyde granules + powder. Polyformaldehyde granules + powder are toxic and have a strong pungent smell of formaldehyde. The specifications of the ton bags used are 300-1000kg, with a length and width of less than 950mm, and the total height of the bag does not exceed 1250mm. The packaging speed of the whole line is 30-40 bags / hour. The accuracy is one thousandth. Among them, gas explosion-proof + dust explosion-proof areas are set up for separate isolation of metering silos. The whole line can meet the needs of 300kg-1000kg ton bag filling, re-weighing, stacking pallets, strapping and offline.

[0025] The ton bag hook is used to manually hang the four hanging hooks of the ton bag into the hook during the packaging process, so that the material can be well filled into the packaging bag. Two people are used to hang the bag at the ton bag hook, and the sealing operation is manually carried out at the weighing sensor position. During filling, the metering silo at the top buffers the material and weighs it first, with an error control of 1‰, and the volume of the metering silo is about 1.5m³. The bottom of the metering silo is equipped with a scissor lift table 2d, with a top extension stroke of 0-500mm. It can adapt to the change of ton bag height between 1300-900. It is driven by a servo and used to lift the line body. Belt conveyor shall not be used, and the load reaches 1.5T. The scissor lift table 2d adopts a cylinder bag-lifting process to increase the filling rate of the material in the ton bag. The material in the ton bag has a high gas content, and a material barrier is formed during the unloading process. It moves up and down by reciprocating lifting. (It can increase the density of the material and make the material fill into the bag more perfectly) The lifting action can also facilitate the hanging of bags, and it can be applied to ton bags of different heights, which is simple and convenient.

[0026] The weighing silo adopts the net weight measurement method, and the material is discharged by weight-increasing metering. The material discharge speed can be controlled by the large and small arc gates during the discharge process. It has high efficiency and high precision measurement without damaging the material. It has the characteristics of compact structure, convenient operation, high degree of automation, etc., and can better meet the requirements of fixed value weighing, filling, packaging, and transportation of materials.

[0027] The weighing sensor has a range of 2 tons. It adopts Mettler Toledo weighing sensor with high comprehensive accuracy, good long-term stability and impact resistance, supplemented by a special force transmission connection mechanism. It has multiple functions such as overload and limit, which effectively ensures that the weight of the bag is 100% transferred to the weighing sensor without generating any force in other directions, so that it has good mechanical automatic reset performance. The speed is adjustable from 5 to 12 meters per minute, and the effective line width is 1.3 meters. The system automatically weighs, out of tolerance, and timeout alarms, and parameters can be set between 300kg and 1000kg. It can realize the filling of ton bags of different specifications. A rotary machine is used to hand over materials from conveyor 1 to rack 901, and the rotary machine can rotate 90 degrees or 180 degrees.

[0028] The ton bag stacking operation is carried out at the rack 1 901. The stacking device cooperates with the rotating conveyor 1a and the automatic pallet warehouse 4 to automatically hold the bag and stack two bags into one bag. The system automatically positions the pallet and the ton bag, automatically clamps the bag, and stacks. The specific process is as follows: Ton bag 1 enters -> Ton bag 1 is picked up -> Ton bag 1 is lifted -> 1 pallet is taken out of the pallet warehouse -> The pallet is sent to the chain plate line from the rotary conveyor -> Ton bag 1 falls onto the pallet -> Ton bag 1 + pallet are moved out and returned to the rotary conveyor -> Ton bag 2 enters -> Ton bag 2 is lifted -> Ton bag 1 + pallet enters the chain plate line from the rotary conveyor -> Ton bag 2 is stacked -> Ton bag 2 + Ton bag 1 + pallet are moved out and returned to the rotary conveyor -> Ton bag 3 enters -> Ton bag 3 is lifted -> Ton bag 2 + Ton bag 1 + pallet enters the chain plate line from the rotary conveyor -> Ton bag 3 falls -> Ton bag 3+2+1+pallet are moved out and returned to the rotary conveyor -> End.

[0029] The stacking device uses servo, lead screw and chain to form a clamping and lifting mechanism with a clamping force of 10T. It can effectively clamp ton bags and stack incoming materials below 500kg into a three-fold structure. When the device is used to pack ton bags, it performs five-sided shaping after the stacking is completed. It uses an electric cylinder or hydraulic cylinder system and does not require manual assistance throughout the process. The widest space of the clamping mechanism is 1300x1300, which can well adapt to ton bags below 500kg. It automatically adjusts the clamping size and clamping force according to the incoming material specifications, and the maximum lifting distance is 2.2m. This station is designed to stack up to 3 layers and then move out in the downstream direction. After each stacking of 3 layers, the automatic pallet warehouse sends out a new pallet, and so on. The automatic pallet warehouse uses a pneumatic structure to destacking and a roller line to feed. 10PCS pallets can be stacked in the silo. The weight is less than 1T.

[0030] The pressing device adopts a five-sided flattening structure. The press 9d used is a five-sided configuration with a mechanical support structure at the bottom. The press 9d is a hydraulic cylinder or an electric cylinder, and the pressure is adjustable below 10T. The process is mainly divided into: four-sided pressing → top pressing → top release → four-sided release → front and rear lifting.

[0031] Subsequent processes on the packaging line also include bundling and wrapping.

[0032] In summary, the present invention provides a ton bag packaging line, which quickly fills materials through a metering silo, and quickly stacks and loads materials on pallets with the cooperation of a bag stacking device and an automatic pallet warehouse, while using a bag pressing device to quickly shape and exhaust ton bags, thereby replacing manual operations and greatly improving production capacity.

[0033] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A ton bag packaging line, characterized in that: It includes several conveyors and metering silos, bag stacking devices, automatic pallet warehouses and bag pressing devices arranged in sequence along the conveyors. The metering silos are connected with large and small arc doors below, and the large and small arc doors are connected with a material pipe below. Several ton bag hooks are arranged around the outside of the material pipe. A scissor-type lifting platform carrying the corresponding conveyor is arranged directly below the material pipe. A weighing sensor carrying the corresponding conveyor is arranged on the downstream side of the scissor-type lifting platform. The bag stacking device is used to stack ton bags. The automatic pallet warehouse is used to supply pallets to the bag stacking device. The bag pressing device is used to squeeze, shape and exhaust ton bags. A strapping machine and a wrapping machine are arranged in sequence on the downstream side of the bag pressing device. The wrapping machine is connected to a stacking roller line behind it, and the stacking roller line is equipped with a forklift. A cage-type frame is arranged along the conveyor, the conveyor is located at the bottom center of the cage-type frame, a servo motor is arranged on the top of the cage-type frame, the servo motor is externally connected with a transmission shaft, the transmission shaft is connected to a main frame through a coupling and multiple sets of synchronous belt pulleys and / or multiple sets of chain sprockets, the cage-type frame is symmetrically provided with a plurality of Z-axis guide rails on both sides of the conveyor, the Z-axis guide rails are movably connected to the main frame, the main frame is located directly above the conveyor, and is used for integrating a bag stacking device or a bag pressing device.

2. The ton bag packaging line according to claim 1 is characterized in that: The bag stacking device and the bag pressing device both include four baffles, which are vertically distributed on the inner periphery of the main frame in a rectangular cylinder structure. A press vertically connected to the baffles is provided on the main frame, and the baffles surround and form a ton bag clamping space.

3. The ton bag packaging line according to claim 2 is characterized in that: The main frame is a rectangular frame structure, and each side is provided with a structural sub-frame parallel to the corresponding baffle. The structural sub-frame and the main frame are provided with a plurality of linear slide rails perpendicular to each baffle. Cantilevers are arranged in parallel on the linear slide rails, and the cantilevers are connected to the corresponding baffles.

4. The ton bag packaging line according to claim 2, characterized in that: The stacking device includes two right-angle support plates, and the baffle includes two front and rear baffles and two side baffles. The two ends of the right-angle support plates are aligned with the front and rear baffles, and the inner corners of the right-angle support plates match the lower edges of the side baffles. The right-angle support plates are movably suspended on the outer walls of the side baffles through a flip shaft, and the side baffles are driven by an external drive through a sprocket chain.

5. The ton bag packaging line according to claim 4, characterized in that: The driver includes a bearing seat and a gear box. A gear shaft mounted on the bearing seat is enclosed in the gear box. A short Z-axis slide rail is arranged in the gear box. An adapter plate is installed on the short Z-axis slide rail. A rack meshing with the gear shaft is arranged on the adapter plate. The adapter plate is connected to a small press arranged outside the gear box. The gear shaft is connected to the flip shaft through a sprocket chain transmission.

6. The ton bag packaging line according to claim 1, characterized in that: The pressing device also includes a sub-frame hoisted on the top of the cage frame, a heavy-duty hydraulic cylinder is hoisted vertically downward in the sub-frame, and the sub-frame is provided with a plurality of oil-free bushing guide rods around the heavy-duty hydraulic cylinder, a horizontally arranged pressing plate is connected under the oil-free bushing guide rod, the heavy-duty hydraulic cylinder is connected to the pressing plate, and the pressing plate is centered on the main frame.

7. The ton bag packaging line according to claim 1, characterized in that: The cage-type rack includes a rack 1 and a rack 2, the rack 1 is integrated with a bag stacking device, the rack 2 is integrated with a bag pressing device, the rack 1 and the rack 2 are connected by a rotating conveyor, and the rotating conveyor is also connected to an automatic pallet warehouse.

8. The ton bag packaging line according to claim 7, characterized in that: The automatic pallet warehouse includes a warehouse frame, the warehouse frame is provided with an in-warehouse conveyor docking with a rotating conveyor, the in-warehouse conveyor is a roller conveyor, a plurality of guide baffles surrounding the in-warehouse conveyor in a semi-enclosed structure are vertically arranged in the warehouse frame, pallet separation brackets are arranged on both sides of the in-warehouse conveyor, small Z-axis linear rails connected to the pallet separation brackets are arranged on both sides of the warehouse frame, and a lifting press is connected to the pallet separation bracket.

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