A double line palletizing device

Abstract

This utility model discloses a dual-line palletizing device, belonging to the field of packaging technology. It includes a pallet conveyor structure, a palletizing robot, two palletizing lines, and two packaging structures. The palletizing lines include a first belt conveyor, a right-angle pusher conveyor, a lifting structure, a square roller shaping conveyor, a pressing conveyor, a second belt conveyor, and a gripping conveyor. The two packaging structures are arranged side-by-side, with the pallet conveyor structure arranged along the front-back direction. Both palletizing conveyor lines are L-shaped, designated as line A and line B. Lines A and B are connected to the two packaging structures respectively. The lifting conveyor structure of line A includes a lifting conveyor and a third belt conveyor, and the lifting conveyor structure of line B includes a lifting conveyor. The transverse conveyor line of line A is located in front of the transverse conveyor line of line B. The longitudinal conveyor line of line B, the longitudinal conveyor line of line A, and the pallet conveyor structure are arranged sequentially adjacent to each other. The rear end of line B is located behind the rear end of line A. The palletizing robot is located directly behind line A.

Description

Technical Field

[0001] This utility model belongs to the field of packaging technology, and specifically relates to a double-line palletizing device. Background Technology

[0002] There are three main methods for producing ammonium dihydrogen phosphate (MDH): neutralization, Venturi cycle reaction, and metathesis. The neutralization method involves diluting phosphoric acid with water, adjusting the pH to 3-4 by purging with ammonia, then filtering, concentrating, cooling, and allowing crystals to precipitate, thus obtaining MDH. MDH is an effective flame retardant for wood, paper, and textiles. In intumescent fire-retardant coatings, it acts as an intumescent catalyst, typically used in conjunction with charring agents (starch, pentaerythritol, etc.) and foaming agents (melamine, dicyandiamide, etc.). MDH is also used in printing plate making and pharmaceutical manufacturing, as well as as a food additive, dye dispersant, and in agriculture as a fertilizer, with significant usage.

[0003] Ammonium dihydrogen phosphate is then packaged in wooden barrels lined with plastic bags or moisture-proof paper. It should be stored in a cool, ventilated, and dry warehouse, avoiding heat and moisture, and should not be stored in the open air.

[0004] In existing technologies, ammonium dihydrogen phosphate can be packaged in 25kg bags and then palletized for transportation. Common packaging and palletizing lines include a first belt conveyor, a bag pusher, a lifting conveyor, a third belt conveyor, a square roller shaping conveyor, a pressing conveyor, a second belt conveyor, a gripping conveyor, a pallet conveyor structure, a palletizing robot, and a packaging structure. The packaging structure, first belt conveyor, bag pusher, lifting conveyor, third belt conveyor, square roller shaping conveyor, pressing conveyor, second belt conveyor, and gripping conveyor are arranged sequentially. The pallet conveyor structure and palletizing robot are located next to the gripping conveyor, and the palletizing robot can transfer the packaging bags from the gripping conveyor to the pallets on the pallet conveyor structure.

[0005] Our company has a large production volume of ammonium dihydrogen phosphate, exceeding 200 tons per day, which requires high speed for the packaging and palletizing lines. Therefore, a dual-line structure can be adopted to increase speed.

[0006] For example, patent application number CN201821380145.9 discloses a dual-line production line for tartaric acid, including a first silo, a second silo, and a palletizing robot. Between the first silo and the palletizing robot, there are sequentially arranged a first belt conveyor, a straight-line push-pack conveyor, a first pressing-pack conveyor, a first square roller shaping conveyor, and a first gripping conveyor. Between the second silo and the palletizing robot, there are sequentially arranged a second belt conveyor, a right-angle push-pack conveyor, a second pressing-pack conveyor, a second square roller shaping conveyor, and a second gripping conveyor. The discharge ports of both the first and second silos are equipped with electronic scales. Both the first and second belt conveyors are equipped with edge trimming and sewing machines. Both the first and second square roller shaping conveyors are equipped with shaping devices. Transfer platforms are provided on both sides of the palletizing robot.

[0007] The production line has the following problems: the two silos are far apart, whereas in the process of producing ammonium phosphate, the two silos are usually set up adjacently (usually side by side); the entire equipment occupies a large area, which requires a large packaging workshop. Utility Model Content

[0008] To address the aforementioned problems, this utility model provides a dual-line palletizing device with a compact structure and small footprint. The technical solution is as follows:

[0009] This utility model embodiment provides a dual-line palletizing device, which includes a pallet conveying structure 2, a palletizing robot 3, two palletizing lines 4, and two packaging structures 1. The palletizing line 4 includes a first belt conveyor 41, a bag pusher 42, a lifting structure, a square roller shaping conveyor 45, a bag pressing conveyor 46, a second belt conveyor 47, and a gripping conveyor 48 arranged sequentially. The two packaging structures 1 are arranged side by side and located to the left or right of the pallet conveying structure 2, which is arranged in a front-to-back direction. The bag pusher 42 is a right-angle pusher conveyor, which can turn upright packaging bags 5 into horizontal ones and can turn left-to-right conveying packaging bags 5 into rearward conveying. The two palletizing lines 4 are both L-shaped and located between the pallet conveying structure 2 and the packaging structures 1, and are respectively line A and line B. The first belt conveyor 41 and the bag pusher 42 are both arranged in a left-to-right direction and together they form an L-shaped horizontal line. The conveyor line comprises an L-shaped longitudinal conveyor line consisting of a lifting structure, a square roller shaping conveyor 45, a pressing conveyor 46, a second belt conveyor 47, and a gripping conveyor 48, all arranged in a front-to-back direction. Lines A and B are connected to the packaging structures 1 at the front and rear, respectively. The lifting conveyor structure of line A includes a lifting conveyor 43 and a third belt conveyor 44 connected in sequence, while the lifting conveyor structure of line B includes only a lifting conveyor 43. The transverse conveyor line of line A is located directly in front of the transverse conveyor line of line B. The longitudinal conveyor line of line B, the longitudinal conveyor line of line A, and the pallet conveyor structure 2 are arranged adjacent to each other in sequence. The rear end of the longitudinal conveyor line of line B is located behind the rear end of the longitudinal conveyor line of line A. The palletizing robot 3 is located directly behind the longitudinal conveyor line of line A and can transfer the packaging bags 5 of lines A and B to the pallets on the pallet conveyor structure 2 for palletizing.

[0010] In this embodiment of the present invention, the rear end of line A, the rear end of line B, and the pallet conveying structure 2 are located on the same circle centered on the palletizing robot 3, directly opposite the palletizing robot 3.

[0011] In this embodiment of the present invention, the first belt conveyor 41 of line A is longer than the first belt conveyor 41 of line B, and the pressing conveyor 46 of line A is located in front of the pressing conveyor 46 of line B.

[0012] Specifically, the robotic arm of the palletizing robot 3 in this embodiment of the present invention is model IRB460.

[0013] Furthermore, in this embodiment of the present invention, a first safety guardrail is provided in the left-right direction in front of the transverse conveyor line A, and a second safety guardrail is provided in the front-back direction on the side of the longitudinal conveyor line A near the pallet conveyor structure 2; a third safety guardrail is provided in the left-right direction behind the transverse conveyor line B, and a fourth safety guardrail is provided in the front-back direction on the side of the longitudinal conveyor line B away from the pallet conveyor structure 2; a fifth safety guardrail is provided in the left-right direction behind the palletizing robot 3; the front end of the second safety guardrail is connected to the corresponding end of the first safety guardrail, and its rear end extends to the front end of the pallet conveyor structure 2; the third, fourth, and fifth safety guardrails are connected in sequence, and the end of the fifth safety guardrail extends to the side of the pallet conveyor structure 2 near the packaging structure 1.

[0014] In this embodiment of the invention, the pack pusher 42 includes a belt conveyor 21 arranged in a left-right direction, a frame support 22 on the belt conveyor 21 located away from the first belt conveyor 41, a guide mechanism 23 on the frame support 22 located near the first belt conveyor 41, a push plate 24 hinged to the front side of the frame support 22, a cylinder 25 on the frame support 22 for driving the push plate 24, and a blocking roller 26 on the upper rear side of the frame support 22. One end of the belt conveyor 21 is connected to the first belt conveyor 41, and the other end is located adjacent to and connected to the lifting conveyor 43. The frame support 22 is a rectangular frame structure, with a side near the first belt conveyor 41 allowing upright packaging bags 5 to pass through, and a rear side allowing packaging bags 5 to pass through. The bag 5 is tilted to allow the horizontally placed packaging bag 5 to pass through; the guiding mechanism 23 includes two guide bars arranged side by side; the two guide bars are located in front of and behind the vertically placed packaging bag 5, respectively, and are located directly above the front and rear ends of the belt conveyor 21, and are arranged in the left and right direction; the push plate 24 is arranged vertically, located in front of the packaging bag 5, and above the front end of the belt conveyor 21, with its upper end hinged to the top of the frame bracket 22, its lower part bent backward, and it rotates backward to push the vertically placed packaging bag 5 to the lifting conveyor 43; the cylinder 25 is arranged in the front and back direction, located in front of the push plate 24, and the rear end of its telescopic rod is hinged to the upper front side of the push plate 24; the blocking roller 26 is arranged in the left and right direction, located directly behind the upper part of the vertically placed packaging bag 5.

[0015] The pressing conveyor 46 in this embodiment includes a roller conveyor 61 arranged in the front-to-back direction, a gantry bracket 62 on the roller conveyor 61, a mounting plate 63 on the top of the gantry bracket 62 and arranged in the front-to-back direction, a drive motor 64 on the mounting plate 63, a front pressing arm 65 hinged to the front side of the gantry bracket 62, a rear pressing arm 66 hinged to the rear side of the gantry bracket 62, a pressure roller 67 at the front end of the front pressing arm 65, a flattening wheel 68 at the rear end of the rear pressing arm 66, and a connection between the front pressing arm 65 and the front end of the mounting plate 63. The system includes a front guide rod 69, a rear guide rod 610 between the rear pressure arm 66 and the rear end of the mounting plate 63, a front spring 611 sleeved on the front guide rod 69, a rear spring 612 sleeved on the rear guide rod 610, and a drive mechanism for driving the leveling wheel 68. The roller conveyor 61 is located between the square roller shaping conveyor 45 and the second belt conveyor 47. The gantry bracket 62 is arranged in a left-right direction. The pressure wheel 67 and the leveling wheel 68 are both arranged in a left-right direction and are located on top of the horizontally placed packaging bag 5. The front pressure arm 65 is arranged in the front-rear direction, and its rear end is hinged to the gantry bracket 62; the rear pressure arm 66 is arranged in the front-rear direction, and its front end is rotatably mounted on the gantry bracket 62 via a left-right rotating shaft; the front guide rod 69 is arranged vertically, its lower end is hinged to the middle of the front pressure arm 65, and its upper part is slidably mounted on the front end of the mounting plate 63, and a limiting protrusion is provided on it and on the upper side of the mounting plate 63; the rear guide rod 610 is arranged vertically, and its lower end is hinged to the front end of the front pressure arm 65. The rear pressure arm 66 is hinged in the middle, and its upper part is slidably disposed at the rear end of the mounting plate 63. A limiting protrusion ring is provided on the upper side of the mounting plate 63. The front spring 611 is located between the front pressure arm 65 and the mounting plate 63, and the rear spring 612 is located between the rear pressure arm 66 and the mounting plate 63. The drive mechanism is disposed on the rotating shaft at the front end of the rear pressure arm 66. The drive motor 64 is connected to the transmission mechanism through a vertical chain. The transmission mechanism is connected to the flat wheel 68 through a forward and backward chain.

[0016] The beneficial effects of the technical solution provided by this utility model embodiment are as follows: This utility model embodiment provides a double-line palletizing device with a compact structure and small footprint. Furthermore, the pressing conveyor adopts a double-wheel structure (pressing wheel and flattening wheel) to ensure flattening effect, and the pusher has a simple structure. The setup is simple; most of the equipment on line A and line B is the same, with only the length of the first belt conveyor differing. Line A has only one more third belt conveyor than line B. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the double-line palletizing device in this utility model embodiment;

[0018] Figure 2 This is the front view of line B;

[0019] Figure 3This is the front view of line A;

[0020] Figure 4 This is a side view of line A;

[0021] Figure 5 This is a side view of line B;

[0022] Figure 6 This is a side view of the bag-pushing machine;

[0023] Figure 7 This is a top view of the packing machine;

[0024] Figure 8 This is a structural schematic diagram of a packing conveyor.

[0025] In the diagram: 1. Packaging structure, 2. Pallet conveyor structure, 3. Palletizing robot, 4. Palletizing line, 5. Packaging bag;

[0026] 21 Belt conveyor, 22 Support frame, 23 Guide mechanism, 24 Push plate, 25 Cylinder;

[0027] 41 First belt conveyor, 42 Packer, 43 Lifting conveyor, 44 Third belt conveyor, 45 Square roller shaping conveyor, 46 Packing conveyor, 47 Second belt conveyor, 48 Gripping conveyor;

[0028] 61 Roller conveyor, 62 Gantry bracket, 63 Mounting plate, 64 Drive motor, 65 Front pressure arm, 66 Rear pressure arm, 67 Pressure roller, 68 Leveling roller, 69 Front guide rod, 610 Rear guide rod, 611 Front spring, 612 Rear spring. Detailed Implementation

[0029] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0030] Example 1

[0031] See Figure 1-8 Example 1 provides a dual-line palletizing device, which includes a pallet conveying structure 2, a palletizing robot 3, two palletizing lines 4, and two packaging structures 1, etc.

[0032] The palletizing line 4 includes a first belt conveyor 41, a pusher 42, a lifting structure, a square roller shaping conveyor 45, a pressing conveyor 46, a second belt conveyor 47, and a gripping conveyor 48, arranged sequentially. The first belt conveyor 41, the lifting structure, the square roller shaping conveyor 45, the second belt conveyor 47, and the gripping conveyor 48 are similar to existing technologies. The first belt conveyor 41 and the pusher 42 are aligned. The square roller shaping conveyor 45, the pressing conveyor 46, the second belt conveyor 47, and the gripping conveyor 48 are also aligned. The first belt conveyor 41 and the second belt conveyor 47 serve as buffer conveyors.

[0033] Two packaging structures 1 are arranged side by side, one behind the other, located to the left or right of the pallet conveying structure 2. They output upright packaging bags 5 to the left or right. The pallet conveying structure 2 is arranged in the front-to-back direction and is used to convey pallets in the front-to-back direction. It is specifically a roller conveyor.

[0034] Among them, the bag pusher 42 is a right-angle bag pusher conveyor, which can change the upright packaging bag 5 to a horizontal position and can change the packaging bag 5 conveyed from left to right to be conveyed backward. That is, it realizes the change of direction at the same time as pushing the bag.

[0035] The two palletizing lines 4 are both L-shaped, located between the pallet conveyor structure 2 and the packaging structure 1, and are respectively line A and line B. Line A is longer than line B, and line A is located between line B and the pallet conveyor structure 2. The first belt conveyor 41 and the pack pusher 42 are both arranged in the left-right direction and together they form an L-shaped transverse conveyor line (arranged in the left-right direction). The lifting structure, the square roller shaping conveyor 45, the pack pressing conveyor 46, the second belt conveyor 47, and the gripping conveyor 48 are all arranged in the front-back direction and together they form an L-shaped longitudinal conveyor line (arranged in the front-back direction).

[0036] In this configuration, line A is connected to the front packaging structure 1, and line B is connected to the rear packaging structure 1. Specifically, the left or right end of the first belt conveyor 41 of line A is connected to the front packaging structure 1 (specifically, the output belt), and the left or right end of the first belt conveyor 41 of line B is connected to the rear packaging structure 1 (specifically, the output belt). The first belt conveyor 41 of line A is longer than the first belt conveyor 41 of line B.

[0037] The lifting and conveying structure of line A includes a lifting conveyor 43 and a third belt conveyor 44 connected in sequence, while the lifting and conveying structure of line B only includes the lifting conveyor 43. The transverse conveyor line of line A is located directly in front of the transverse conveyor line of line B. The longitudinal conveyor line of line B, the longitudinal conveyor line of line A, and the pallet conveyor structure 2 are arranged adjacent to each other in the left-right direction. The rear end of the longitudinal conveyor line of line B is located behind the rear end of the longitudinal conveyor line of line A. The transverse conveyor line of line A is longer than the transverse conveyor line of line B, and the longitudinal conveyor line of line A is longer than the longitudinal conveyor line of line B. Due to the more complex structure of the pressing conveyor 46 (which protrudes left and right), the pressing conveyor 46 of line A is positioned in front of the pressing conveyor 46 of line B, staggered from front to back.

[0038] The palletizing robot 3 is located directly behind the longitudinal conveyor line of line A. It can transfer the packaging bags 5 from lines A and B to the pallet conveyor structure 2 for palletizing. Specifically, the rear ends of line A, line B, and the pallet conveyor structure 2 are located on the same circle centered on the palletizing robot 3.

[0039] Among them, see Figure 6-7The packaging pusher 42 in this embodiment includes a belt conveyor 21, a frame support 22, a guide mechanism 23, a push plate 24, a cylinder 25, and a blocking roller 26. The belt conveyor 21 is arranged in a left-right direction, with one end (left or right) connected to the first belt conveyor 41, and the other end (right or left) located adjacent to and connected to the lifting conveyor 43. The frame support 22 is mounted on the belt conveyor 21, located at the end of the belt conveyor 21 away from the first belt conveyor 41. It is a rectangular frame structure arranged in a left-right direction. The side (left or right) of the frame support closest to the first belt conveyor 41 allows upright packaging bags 5 to pass through, and the rear side allows packaging bags 5 to be tilted and horizontally placed to pass through. The guiding mechanism 23 is used to guide the packaging bag 5 left and right and prevent the packaging bag 5 from tipping over. It is located on the side of the frame support 22 near the first belt conveyor 41 (left or right side). It is mounted on the belt conveyor 21 and is arranged in the left and right direction. It includes two guide strips arranged side by side. The two guide strips are located at the adjacent front and rear of the upright packaging bag 5, respectively. They are located directly above the front and rear ends of the belt conveyor 21 (specifically the conveyor belt). They are arranged in the left and right direction. The end of the guide strip near the packaging structure 1 is a flared structure. The other end is fixed to the front and rear of the frame support 22, respectively. The push plate 24 is hinged to the front side of the frame support 22. It is arranged vertically and is located in front of the packaging bag 5. It is located above the front end of the belt conveyor 21 (specifically the conveyor belt). Its upper end is hinged to the top of the frame support 22 (through a left and right rotating shaft). Its lower part is bent backward. It rotates backward to push the upright packaging bag 5 over and push it to the lifting conveyor 43. A cylinder 25 drives the push plate 24 to rotate. It is mounted on the frame support 22 (the corresponding support) in the front-rear direction, positioned in front of the push plate 24. The rear end of its telescopic rod is hinged to the upper front side of the push plate 24. When the cylinder 25 extends, the push plate 24 rotates, thus pushing the bag. A blocking roller 26 is positioned in the left-right direction, located on the upper rear side of the frame support 22, directly behind the upper part of the upright packaging bag 5. It ensures that the lower part of the packaging bag 5 tilts backward.

[0040] Among them, see Figure 8The pressing conveyor 46 in this embodiment of the present invention includes a roller conveyor 61, a gantry bracket 62, a mounting plate 63, a drive motor 64, a front pressing arm 65, a rear pressing arm 66, a pressing roller 67, a leveling roller 68, a front guide rod 69, a rear guide rod 610, a front spring 611, a rear spring 612, and a drive mechanism. The roller conveyor 61 is arranged in a front-to-back direction and is located between the square roller shaping conveyor 45 and the second belt conveyor 47. The gantry bracket 62 is located on the roller conveyor 61 and is arranged in a left-to-right direction, allowing the packaging bags 5 to pass through. The mounting plate 63 is located at the top of the gantry bracket 62 (specifically in the middle of the top beam of the gantry bracket 62), and is arranged in a front-to-back direction, with its front and rear ends extending forward and backward respectively relative to the corresponding sides of the gantry bracket 62. The front pressing arm 65 is located on the front side of the gantry bracket 62, is arranged in a front-to-back direction, and its rear end is hinged (through a left-to-right rotating shaft) to the gantry bracket 62. The rear pressure arm 66 is located behind the gantry bracket 62, arranged in the front-rear direction, and its front end is rotatably mounted on the gantry bracket 62 via a left-right rotating shaft. The pressure roller 67 is located at the front end of the front pressure arm 65 and is a smooth roller. The leveling roller 68 is located at the rear end of the rear pressure arm 66, and its circumferential surface is provided with protrusions or ridges, consistent with the prior art. Both the pressure roller 67 and the leveling roller 68 are arranged in the left-right direction, located above the horizontally placed packaging bag 5, and directly above the roller conveyor 61. The front guide rod 69 is located between the front pressure arm 65 and the front end of the mounting plate 63, arranged vertically, with its lower end hinged to the middle of the front pressure arm 65 (via a left-right rotating shaft), and its upper part slidably mounted on the front end of the mounting plate 63 (the mounting plate 63 is provided with a through hole for the front guide rod 69 to pass through and move), and a limiting protrusion ring (which cannot pass through the through hole) is provided on the upper side of the mounting plate 63. The rear guide rod 610 is located between the rear pressure arm 66 and the rear end of the mounting plate 63. It is vertically oriented, with its lower end hinged to the middle of the rear pressure arm 66 (via a left-right pivot). Its upper part slides on the rear end of the mounting plate 63 (the mounting plate 63 has a corresponding through hole for the rear guide rod 610 to pass through and move). A limiting ring (preventing it from passing through the through hole) is located on the upper side of the mounting plate 63. The front spring 611 is sleeved on the front guide rod 69, vertically oriented, and located between the front pressure arm 65 and the mounting plate 63. The rear spring 612 is sleeved on the rear guide rod 610, vertically oriented, and located between the rear pressure arm 66 and the mounting plate 63. The drive motor 64 is located in the upper middle part of the mounting plate 63 and is connected to the transmission mechanism via a vertical chain. The drive mechanism is used to drive the leveling wheel 68, which is rotatably mounted on a shaft at the front end of the rear pressure arm 66. It includes sprockets arranged side by side and fixed together, which are connected to the leveling wheel 68 (with corresponding sprockets at the ends) via a forward and backward chain. Specifically, one sprocket is connected to the drive motor 64, and the other sprocket is connected to the leveling wheel 68.

[0041] Example 2

[0042] See Figure 3 Example 2 provides a dual-line palletizing device. The structure of this device is basically the same as that of Example 1, except that the palletizing robot 3 in this example uses an IRB460 robotic arm equipped with corresponding grippers. The palletizing robot 3 has a maximum gripping capacity of 800 bags / hour, uses a single-grip gripping and single-placement method, and a gripping cycle of 4.5 seconds / grip. Its load capacity is 110 kg, and its working radius is 2400 mm. The packaging bag 5 has the following specifications: each bag weighs 25 kg and has a size of 700 mm. 480mm 110mm. The stacking method is: five bags per layer, for a total of eight layers.

[0043] Example 3

[0044] See Figure 1 Example 3 provides a dual-line palletizing device. The structure of this device is basically the same as that of Example 1, except that: in this example, a first safety guardrail is provided in front of the transverse conveyor line A along the left-right direction; a second safety guardrail is provided on the longitudinal conveyor line A near the pallet conveyor structure 2 (left or right side) along the front-back direction. A third safety guardrail is provided behind the transverse conveyor line B along the left-right direction; a fourth safety guardrail is provided on the longitudinal conveyor line B away from the pallet conveyor structure 2 (left or right side) along the front-back direction; and a fifth safety guardrail is provided behind the palletizing robot 3 along the left-right direction. The front end of the second safety guardrail connects to the corresponding end (left or right) of the first safety guardrail, and its rear end extends to the front end of the pallet conveyor structure 2. The third, fourth, and fifth safety guardrails are connected sequentially, with the end (left or right) of the fifth safety guardrail extending to the side of the pallet conveyor structure 2 near the packaging structure 1 (left or right). The height of the safety guardrails is 1.5-2.5m, specifically 2m.

[0045] Example 4

[0046] See Figure 1 Example 4 provides a dual-line palletizing device, the structure of which is basically the same as that of Example 1, except that: in this example, the two packaging structures 1 are located to the left of the pallet conveying structure 2; the longitudinal conveying line B, the longitudinal conveying line A, and the pallet conveying structure 2 are arranged adjacent to each other from left to right, with the longitudinal conveying line located behind the right end of the transverse conveying line. The frame support 22 is located at the right end of the belt conveyor 21, and the guide mechanism 23 is located to the left of the frame support 22.

[0047] Specifically, the length of the first belt conveyor 41 on line A is 1980mm, and the length of the first belt conveyor 41 on line B is 950mm. The length of the pack pusher 42 is 1600mm, the length of the lifting conveyor 43 is 1800mm, the length of the third belt conveyor 44 is 1870mm, the length of the square roller shaping conveyor 45 is 1970mm, the length of the pressing conveyor 46 is 1600mm, the length of the second belt conveyor 47 is 1050mm, and the length of the gripping conveyor 48 is 1100mm. The height of the packaging bag 5 on the gripping conveyor 48 is 1310mm, the installation height of the palletizing robot 3 is 1250mm, and the height of the pallet on the pallet conveyor structure 2 is 750mm. The distance between the palletizing robot 3 and line A is 1100mm, the distance between it and line B is 1130mm, and the distance between it and the pallet conveyor structure 2 is 800mm.

[0048] The benefits of this device are as follows:

[0049] (1) The robotic arm can achieve a palletizing speed of 400-800 bags / hour, with a bag weight of 20-50 kg; pallet specifications: (1100-1600mm) × (950-1400mm) (length × width); weight per stack: 1 ton - 2 tons.

[0050] Note: Based on 25KG per bag, 10-20 tons can be stacked per hour. 240-480 tons can be stacked per day, which meets the company's production requirements.

[0051] (2) Consumption: Electricity consumption 12KW / H; Gas consumption: 19.6NL / min, 0.6Mpa.

[0052] (3) Currently, there are 3 people per shift (3 shifts, 2 rotations, totaling 9 people) (excluding forklift drivers). After the upgrade, only 1 person per shift (4 shifts, 3 rotations) will be needed. Compared to manual palletizing, this will reduce the number of people by five, resulting in annual cost savings of 2.5 million yuan. 12=300,000 yuan.

[0053] In this patent, the terms "first," "second," and "third" serve only to distinguish the patentee and have no other special meaning.

[0054] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-line palletizing device, comprising a pallet conveying structure (2), a palletizing robot (3), two palletizing lines (4), and two packaging structures (1), wherein the palletizing line (4) comprises, in sequence, a first belt conveyor (41), a pack pusher (42), a lifting structure, a square roller shaping conveyor (45), a pack pressing conveyor (46), a second belt conveyor (47), and a gripping conveyor (48); characterized in that, Two packaging structures (1) are arranged side by side and located on the left or right side of the pallet conveying structure (2), which is arranged in the front-to-back direction; The pusher (42) is a right-angle pusher conveyor, which can turn the upright packaging bag (5) into a horizontal one and can turn the packaging bag (5) conveyed from left to right into a backward conveyor. Both palletizing lines (4) are L-shaped and located between the pallet conveying structure (2) and the packaging structure (1). They are line A and line B, respectively. The first belt conveyor (41) and the pack pusher (42) are both arranged in the left-right direction and together they form an L-shaped transverse conveying line. The lifting structure, the square roller shaping conveyor (45), the pack pressing conveyor (46), the second belt conveyor (47), and the gripping conveyor (48) are all arranged in the front-back direction and together they form an L-shaped longitudinal conveying line. Line A and Line B are connected to the front and rear packaging structures (1) respectively; the lifting conveyor structure of Line A includes a lifting conveyor (43) and a third belt conveyor (44) connected in sequence, and the lifting conveyor structure of Line B only includes a lifting conveyor (43). The transverse conveyor line of Line A is located directly in front of the transverse conveyor line of Line B. The longitudinal conveyor line of Line B, the longitudinal conveyor line of Line A, and the pallet conveyor structure (2) are arranged adjacent to each other in sequence; the rear end of the longitudinal conveyor line of Line B is located behind the rear end of the longitudinal conveyor line of Line A; the palletizing robot (3) is located directly behind the longitudinal conveyor line of Line A, and it can transfer the packaging bags (5) of Line A and Line B to the pallet on the pallet conveyor structure (2) for palletizing.

2. The dual-line palletizing device according to claim 1, characterized in that, The rear end of line A, the rear end of line B, and the pallet conveying structure (2) are located on the same circle centered on the palletizing robot (3) directly opposite the palletizing robot (3).

3. The double-line palletizing device according to claim 1, characterized in that, The first belt conveyor (41) of line A is longer than the first belt conveyor (41) of line B, and the pressing conveyor (46) of line A is located in front of the pressing conveyor (46) of line B.

4. The double-line palletizing device according to claim 1, characterized in that, The robotic arm of the palletizing robot (3) is model IRB460.

5. The dual-line palletizing device according to claim 1, characterized in that, A first safety guardrail is provided in front of the transverse conveyor line of line A along the left and right directions. A second safety guardrail is provided in front of the longitudinal conveyor line of line A along the front and back directions on the side close to the pallet conveyor structure (2). A third safety guardrail is provided in front of the transverse conveyor line of line B along the left and right directions. A fourth safety guardrail is provided in front of the longitudinal conveyor line of line B along the front and back directions on the side away from the pallet conveyor structure (2). A fifth safety guardrail is provided in front of the palletizing robot (3) along the left and right directions. The front end of the second safety guardrail is connected to the corresponding end of the first safety guardrail, and its rear end is connected to the front end of the pallet conveyor structure (2). The third, fourth and fifth safety railings are connected in sequence, with the end of the fifth safety railing extending to the side of the pallet conveying structure (2) near the packaging structure (1).

6. The dual-line palletizing device according to claim 1, characterized in that, The pusher (42) includes a belt conveyor (21) arranged in the left-right direction, a frame support (22) on the belt conveyor (21) located away from the first belt conveyor (41), a guide mechanism (23) on the frame support (22) located near the first belt conveyor (41), a push plate (24) hinged to the front side of the frame support (22), a cylinder (25) on the frame support (22) for driving the push plate (24), and a blocking roller (26) on the upper rear side of the frame support (22); one end of the belt conveyor (21) is connected to the first belt conveyor (41), and the other end is located adjacent to and connected to the lifting conveyor (43); the frame support (22) is a rectangular frame structure, and the side of it near the first belt conveyor (41) can allow upright packaging bags (5) to pass through, and the rear side can allow packaging bags (5) to pass through. The bag (5) is tilted and allows the horizontally placed packaging bag (5) to pass through; the guiding mechanism (23) includes two guide bars arranged side by side; the two guide bars are located in front of and behind the vertically placed packaging bag (5), respectively, and are located directly above the front and rear ends of the belt conveyor (21), and are arranged in the left and right direction; the push plate (24) is arranged vertically, located in front of the packaging bag (5), located above the front end of the belt conveyor (21), its upper end is hinged to the top of the frame bracket (22), its lower part is bent backward, and it rotates backward to push the vertically placed packaging bag (5) to the top of the lifting conveyor (43); the cylinder (25) is arranged in the front and back direction, located in front of the push plate (24), and the rear end of its telescopic rod is hinged to the upper front side of the push plate (24); the blocking roller (26) is arranged in the left and right direction, located directly behind the upper part of the vertically placed packaging bag (5).

7. The double-line palletizing device according to claim 1, characterized in that, The pressing conveyor (46) includes a roller conveyor (61) arranged in the front-to-back direction, a gantry frame (62) on the roller conveyor (61), a mounting plate (63) on the top of the gantry frame (62) and arranged in the front-to-back direction, a drive motor (64) on the mounting plate (63), a front pressure arm (65) hinged to the front side of the gantry frame (62), a rear pressure arm (66) hinged to the rear side of the gantry frame (62), a pressure roller (67) at the front end of the front pressure arm (65), a flattening roller (68) at the rear end of the rear pressure arm (66), and a front end of the front pressure arm (65) and the mounting plate (63). The rear guide rod (610) between the front guide rod (69), the rear pressure arm (66), and the rear end of the mounting plate (63), the front spring (611) sleeved on the front guide rod (69), the rear spring (612) sleeved on the rear guide rod (610), and the drive mechanism for driving the leveling wheel (68) are provided. The roller conveyor (61) is located between the square roller shaping conveyor (45) and the second belt conveyor (47). The gantry bracket (62) is arranged in the left-right direction. The pressure wheel (67) and the leveling wheel (68) are both arranged in the left-right direction and are located on the horizontally placed package. The bag (5) is located on the upper side, directly above the roller conveyor (61); the front pressure arm (65) is arranged in the front-rear direction, and its rear end is hinged to the gantry bracket (62); the rear pressure arm (66) is arranged in the front-rear direction, and its front end is rotatably mounted on the gantry bracket (62) through a left-right rotating shaft; the front guide rod (69) is arranged vertically, and its lower end is hinged to the middle of the front pressure arm (65), and its upper part is slidably mounted on the front end of the mounting plate (63), and a limiting protrusion is provided on it and on the upper side of the mounting plate (63); the rear guide rod (610) is arranged vertically, and its lower end is... The rear pressure arm (66) is hinged to the middle, and its upper part is slidably disposed on the rear end of the mounting plate (63). A limiting protrusion ring is provided on the upper side of the mounting plate (63). The front spring (611) is located between the front pressure arm (65) and the mounting plate (63), and the rear spring (612) is located between the rear pressure arm (66) and the mounting plate (63). The drive mechanism is disposed on the rotating shaft at the front end of the rear pressure arm (66). The drive motor (64) is connected to the transmission mechanism through a vertical chain. The transmission mechanism is connected to the flat wheel (68) through a forward and backward chain.

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