A depalletizing machine

Abstract

The present invention relates to a depalletizing machine, comprising a main frame, a turning frame, a supporting platform and a pressing frame; the turning frame is installed on one side of the main frame, one side of the turning frame is rotatably connected to the main frame, and the two are also connected by a rotating drive mechanism; the supporting platform is located at the bottom inner side of the turning frame, the supporting platform and the turning frame are longitudinally slidably connected, and the two are connected by a lifting drive mechanism; the pressing frame is located at the top inner side of the turning frame and the two are fixedly connected, and the pressing frame is provided with a plurality of groups of longitudinally arranged telescopic pressing rods, the bottom ends of the telescopic pressing rods are abutted against and pressed against material bags on the supporting platform; the present invention has reasonable structural design, high depalletizing efficiency, high overall flexibility, multiple auxiliary and limiting structures, wide application range, low requirements on material bag specifications, and can prevent the ineffective depalletizing of material bag stacks due to the slipping of material bags.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics mechanical equipment, and in particular to a depalletizer. Background Art

[0002] In the process of depalletizing material bags, manual depalletizing is generally adopted, that is, the bags are placed on the conveyor belt one by one manually. This method will consume a lot of labor and time, and has low efficiency; some units use large depalletizing equipment, although it can improve efficiency, but the equipment cost is high, the bags are prone to slipping, resulting in the inability to effectively depalletize the entire stack of bags, and there are great limitations on the specifications of the bags that need to be depalletized, which cannot meet the diversified production needs. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, an object of the present invention is to provide a depalletizer to avoid manual depalletizing and is not limited to specified material bag specifications.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A depalletizer, characterized in that it comprises a main frame, a turning frame, a material supporting platform and a material pressing frame;

[0006] The flip frame is installed on one side of the main frame, one side of the flip frame is rotatably connected to the main frame, and the two are also connected through a rotation drive mechanism for driving the flip frame to rotate;

[0007] The material supporting platform is located at the bottom of the inner side of the turning frame, the material supporting platform is connected to the turning frame in a longitudinal sliding manner, and the two are connected by a lifting drive mechanism for driving the material supporting platform to perform lifting actions;

[0008] The pressing frame is located at the top of the inner side of the turning frame and the two are connected and fixed. The pressing frame is provided with a plurality of groups of longitudinally arranged telescopic pressing rods, and the bottom ends of the telescopic pressing rods are against and pressed against the material bags on the supporting platform.

[0009] The rotary drive mechanism comprises at least one set of rotary oil cylinders, and the main bodies and telescopic ends of the rotary oil cylinders are rotatably connected to the main frame and the turning frame respectively.

[0010] The material supporting platform includes a material supporting frame and a plurality of groups of rollers installed on the top of the material supporting frame and rotatably arranged. A material pushing rod is also provided in the gap of the roller bracket. The two sides of the bottom of the material pushing rod are respectively connected to the material supporting frame through a material pushing driving mechanism, which is used to control the lifting and lowering action of the material pushing rod through the material pushing driving mechanism.

[0011] The lifting drive mechanism includes a telescopic cylinder, a sprocket and a chain. The body of the telescopic cylinder is rotatably mounted on the turning frame. The sprocket is mounted on the top of the telescopic cylinder and is rotatably arranged. The middle part of the chain is connected to the sprocket, one end of the chain is fixedly arranged, and the other end of the chain is connected and fixed to the supporting frame.

[0012] Guide rails are respectively arranged on both sides of the turning frame, and sliding blocks slidably connected to the guide rails are arranged on both sides of the supporting platform.

[0013] The telescopic pressing rod comprises a telescopic cylinder, the body of the telescopic cylinder is connected and fixed to the pressing frame, the telescopic end of the telescopic cylinder is arranged downward, and a pressing block connected and fixed to the bottom of the telescopic end of the telescopic cylinder is provided.

[0014] The pressing block is a rubber block or a plastic block in the shape of an inverted truncated cone.

[0015] It also includes a material baffle plate, which is respectively arranged on both sides of the turning frame. The back side of the material baffle plate is slidably connected to the turning frame, and the two are also connected by a clamping drive mechanism for driving the supporting platform to clamp the material bag on the supporting platform.

[0016] The back side of the baffle plate is connected to the turning frame through a plurality of guide rail mechanisms vertically distributed therewith.

[0017] A discharge plate connected and fixed thereto is arranged inside the main frame, and a discharge channel is formed inside the discharge plate. The discharge channel is a trumpet-shaped structure, and the end with a larger opening thereof is arranged corresponding to the overturning frame.

[0018] The main frame is also provided with a PLC control box, which is connected to each driving mechanism respectively.

[0019] The beneficial effects of the present invention are: reasonable structural design, high destacking efficiency, high overall flexibility, multiple auxiliary and limiting structures, wide application range, low requirements for bag specifications, and the ability to prevent the inability to effectively destacking bag stacks due to bag slippage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a schematic diagram of the axonometric structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the main structure of the present invention.

[0023] Figure 3 , Figure 4 It is a schematic diagram of the internal axonometric structure of the present invention.

[0024] Figure 5 It is a schematic diagram of the main structure of the present invention in use.

[0025] In the figure: 100 main frame, 101 unloading plate, 200 turning frame, 201 rotating cylinder, 202 guide rail slide, 300 PLC control box, 400 supporting table, 401 supporting rack, 402 roller, 403 ejecting drive mechanism, 404 ejecting rod, 405 telescopic cylinder, 406 sprocket, 501 pressing rack, 502 telescopic pressing rod, 503 pressing block, 600 baffle plate, 601 guide rail mechanism, 602 clamping drive mechanism. DETAILED DESCRIPTION

[0026] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0027] according to Figures 1 to 5 As shown: This embodiment provides a depalletizer, characterized in that it includes a main frame 100, a flip frame 200, a support table 400, a pressure frame 501 and a baffle plate 600, wherein the flip frame 200 is installed on the main frame 100, and panels are installed on the outer side walls of the main frame 100 and the flip frame 200 for protection to ensure the safety of the equipment, and the support table 400, the pressure frame 501 and the baffle plate 600 are respectively installed on the flip frame 200, so that they can complete the rotation action together with the flip frame 200 and cooperate with each other to perform depalletizing operations, wherein:

[0028] The main structure of the main frame 100 is located on the right side, and the left side is mainly a base part located at the bottom, which is used to install the turning frame 200, wherein a discharge plate 101 connected and fixed thereto is provided inside the main structure of the main frame 100, and the discharge plate 101 is bent into an arc structure, and the discharge plate 101 is inclined and constitutes a discharge channel inside thereof, and the discharge channel is a trumpet-shaped structure, one end of which has a larger opening and the end opening is arranged corresponding to the turning frame 200, and the other end has a smaller opening and the height of this side is arranged lower, so that the material bag can slide down by gravity and reduce the area where the material bag falls, which is convenient for determining the installation position of the conveyor belt or for manual sorting.

[0029] The flip frame 200 is installed on one side of the main frame 100, that is, on the upper part of the base, so that after the flip frame 200 and the main frame 100 are assembled, when the flip frame 200 performs related actions, the main frame 100 can be supported stably to prevent the main frame 100 from tilting, thereby ensuring the safety of the equipment.

[0030] The right side of the flip frame 200 is rotatably connected to the main frame 100, and the front and rear sides of the flip frame 200 are respectively processed with side ears, which are rotatably assembled with the top left side of the main frame 100 through a rotating shaft, so that the flip frame 200 can rotate around the rotating connection position, and the two are also connected by a rotating drive mechanism to drive the flip frame 200 to rotate. The rotating drive mechanism includes two groups of parallel distributed rotating cylinders 201 for ensuring a smooth rotation effect. The body and telescopic end of the rotating cylinder 201 are rotatably connected to the main frame 100 and the flip frame 200, respectively, so that when the rotating cylinder 201 is extended, the flip frame 200 will rotate at the top toward the side of the main frame 100, so that it is tilted as a whole, which is conducive to automatic unloading.

[0031] The support platform 400 is located at the bottom of the inner side of the turning frame 200, and the support platform 400 includes a support frame 401 and a plurality of groups of rollers 402 installed on the top of the support frame 401 and rotatably arranged. The rollers 402 are connected to each other and driven by a driving motor. The rollers 402 are used to place the material stacking as a whole in place by rotating; a lifting rod 404 is also provided in the gap of the support of the roller 402, and the lifting rod 404 is arranged parallel to the roller 402, and the bottom two sides of the lifting rod 404 are respectively connected to the support frame through the lifting driving mechanism 403. 401 is connected, and the ejection driving mechanism 403 adopts a cylinder, the body of the cylinder is fixed on the supporting frame 401, and the telescopic end of the cylinder is connected to the ejection rod 404, which is used to control the ejection rod 404 to perform lifting and lowering actions through the ejection driving mechanism 403. Since the roller 402 itself can rotate, when the turning frame 200 tilts, the material bag may slide on the falling surface, and thus fall to the area outside the discharge plate 101 during the tilting process. At this time, the ejection rod 404 can be raised to tighten the bottom of the material bag to prevent the material bag from sliding;

[0032] Furthermore, the supporting platform 400 is longitudinally slidably connected to the overturning frame 200, and guide rail slide grooves 202 are respectively provided on both sides of the overturning frame 200, and sliders slidably connected to the guide rail slide grooves 202 are provided on both sides of the supporting platform 400. At the same time, the supporting platform 400 and the overturning frame 200 are connected through a lifting drive mechanism for driving the supporting platform 400 to perform a lifting action. The lifting drive mechanism is provided with two groups and is respectively located on the outside of the guide rail slide groove 202. The lifting drive mechanism includes a telescopic cylinder 405, a sprocket 406 and a chain. The main body of the telescopic cylinder 405 is rotatably mounted on the overturning frame 200. The sprocket 406 is installed on the top of the telescopic cylinder 405, and the sprocket 406 is rotatably set. The middle part of the chain is connected to the sprocket 406, one end of the chain is connected to and fixedly set to the support frame 401, and the other end of the chain is connected and fixed to the support frame 401. When the telescopic cylinder 405 is extended, the position of the sprocket 406 rises. Since the length of the chain remains unchanged, the chain will pull the support frame 401 to rise and fall. When the support frame 401 is at the bottom, it is used to place material bags on the support frame 401. When the support frame 401 rises to a specified position, it is used to destacker when the flip frame 200 is tilted.

[0033] The pressing frame 501 is located at the top of the inner side of the turning frame 200 and the two are connected and fixed. The pressing frame 501 has two layers. The pressing frame 501 is provided with several groups of longitudinally arranged telescopic pressing rods 502. The telescopic pressing rods 502 include multiple columns. The telescopic pressing rods 502 include telescopic cylinders. The bodies of the telescopic cylinders are respectively connected and fixed with the two groups of the pressing frames 501. The telescopic ends of the telescopic cylinders are arranged downward, and a pressing block 503 connected and fixed thereto is provided at the bottom of the telescopic ends of the telescopic cylinders. The pressing block 503 is a rubber block in the shape of an inverted frustum. After the supporting platform 400 rises to the specified position, the bottom end of the telescopic pressing rod 502 abuts against and presses the material bags on the supporting platform 400 to fix the material bags at the top to prevent the material bags from falling to the area outside the unloading plate 101 during the tilting process.

[0034] The baffle plate 600 is respectively arranged on the front and rear sides of the turning frame 200, and the back side of the baffle plate 600 is slidably connected to the turning frame 200 through four groups of guide rail mechanisms 601 distributed vertically therewith. The guide rail mechanism 601 includes a sliding block and a guide rail connected in a sliding manner, and is respectively connected to the baffle plate 600 and the turning frame 200 to maintain a stable sliding effect of the baffle plate 600. The baffle plate 600 and the turning frame 200 are also connected through two groups of clamping drive mechanisms 602. The clamping drive mechanism 602 adopts a cylinder, whose main body is rotatably connected to the turning frame 200, and whose telescopic end is connected to the baffle plate 600, and is used to drive the supporting platform 400 to clamp the material bags on the supporting platform 400, so that the front and rear sides of the material bags on the supporting platform 400 are also fixed and will not fall at will, thereby ensuring the effectiveness and stability of the destacking process.

[0035] Furthermore, a PLC control box 300 is also provided on the main frame 100, and the PLC control box 300 is connected to each driving mechanism respectively. At the same time, the PLC control box 300 of the depalletizer should also be connected to the supporting air compressor system, hydraulic pump station and other equipment to maintain the coordinated work between the various systems and equipment. If necessary, limit switches, distance sensors and the like should be installed on the depalletizer to ensure the safety of system operation.

[0036] A process of using a depalletizer includes: when a stack of material bags is placed on a support platform 400, an internal rotating drive mechanism inside the main frame 100 tilts the upper part of the flip frame 200 to the right, and at the same time, the lifting drive mechanisms on both sides of the flip frame 200 drive the support platform 400 to rise through chains until it reaches a set depalletizing position, and the blocking plates 600 on both sides of the flip frame 200 extend forward through a clamping drive mechanism 602 to prevent the bags from falling off to the left and right;

[0037] When the material bag sensor at the destacking position senses the material bag, the telescopic pressing rod 502 in the pressing frame 501 is already in working condition, and the telescopic pressing rod 502 is retracted one by one from the right to the left through the PLC control box 300, and the material bag falls to the inside of the unloading plate 101 by its own weight, and reaches the discharge port through the unloading channel. The destacking machine is suitable for material bags of various thicknesses and sizes, and eliminates the situation where the material bag stack cannot be effectively destacking due to the slipping of the material bag.

[0038] The above descriptions are only preferred implementation modes of the present invention. As long as the technical solutions for the purpose of the present invention are achieved by substantially the same means, they are all within the protection scope of the present invention.

Claims

1. A depalletizer, characterized in that: It includes a main frame, a turning frame, a material supporting table and a material pressing frame; The flip frame is installed on one side of the main frame, one side of the flip frame is rotatably connected to the main frame, and the two are also connected through a rotation drive mechanism for driving the flip frame to rotate; The material supporting platform is located at the bottom of the inner side of the turning frame, the material supporting platform is connected to the turning frame in a longitudinal sliding manner, and the two are connected by a lifting drive mechanism for driving the material supporting platform to perform lifting actions; The material pressing frame is located at the top of the inner side of the turning frame and the two are connected and fixed. The material pressing frame is provided with a plurality of groups of longitudinally arranged telescopic material pressing rods, and the bottom ends of the telescopic material pressing rods are against and pressed against the material bags on the supporting platform; The rotary drive mechanism comprises at least one set of rotary cylinders, the main bodies and telescopic ends of which are rotatably connected to the main frame and the tilting frame respectively; The support platform includes a support frame and a plurality of rollers mounted on the top of the support frame and rotatably arranged. A push rod is also arranged in the gap of the roller support. The two sides of the bottom of the push rod are respectively connected to the support frame through a push drive mechanism, which is used to control the lifting action of the push rod through the push drive mechanism; The lifting drive mechanism comprises a telescopic oil cylinder, a sprocket and a chain. The body of the telescopic oil cylinder is rotatably mounted on the overturning frame. The sprocket is mounted on the top of the telescopic oil cylinder and is rotatably arranged. The middle part of the chain is connected to the sprocket. One end of the chain is fixedly arranged, and the other end of the chain is connected and fixed to the bracket. The telescopic pressing rod comprises a telescopic cylinder, the body of the telescopic cylinder is connected and fixed to the pressing frame, the telescopic end of the telescopic cylinder is arranged downward, and a pressing block connected and fixed to the bottom of the telescopic end of the telescopic cylinder is provided.

2. A depalletizer according to claim 1, characterized in that: Guide rails are respectively arranged on both sides of the turning frame, and sliding blocks slidably connected to the guide rails are arranged on both sides of the supporting platform.

3. A depalletizer according to claim 1, characterized in that: The pressing block is a rubber block or a plastic block in the shape of an inverted truncated cone.

4. A depalletizer according to claim 1, characterized in that: It also includes a material baffle plate, which is respectively arranged on both sides of the turning frame. The back side of the material baffle plate is slidably connected to the turning frame, and the two are also connected by a clamping drive mechanism for driving the supporting platform to clamp the material bag on the supporting platform.

5. A depalletizer according to claim 4, characterized in that: The back side of the baffle plate is connected to the turning frame through a plurality of guide rail mechanisms vertically distributed therewith.

6. A depalletizer according to claim 1, characterized in that: A discharge plate connected and fixed thereto is arranged inside the main frame, and a discharge channel is formed inside the discharge plate. The discharge channel is a trumpet-shaped structure, and the end with a larger opening thereof is arranged corresponding to the overturning frame.

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