A depalletizing system and method for depalletizing carton stacks layer by layer

Abstract

The present invention discloses a depalletizing system and method for dismantling carton stacks layer by layer, belonging to the technical field of carton stack depalletizing devices, wherein the depalletizing system for dismantling carton stacks layer by layer comprises staggered brackets and support frames, a plurality of groups of first rollers are rotatably mounted on the brackets, a plurality of groups of second rollers are rotatably mounted on the support frames, a connecting frame is provided at one end of the support frames close to the brackets, and a conveying roller is rotatably mounted in the connecting frame, and the rotation speed of the conveying roller is greater than that of the first roller; a stop rod is provided to ensure that the goods in the front row are conveyed to the second roller and then limit the position of the goods in the adjacent row, so that only one row of goods can be transported to the support frames at a time, which is conducive to completely dismantling the stacked goods.

Description

Technical Field

[0001] The invention relates to the technical field of carton stack depalletizing devices, and in particular to a depalletizing system and method for depalletizing carton stacks layer by layer. Background Art

[0002] With the rapid development of industrialization and the express delivery industry, the reliance on automation is increasing. How to handle cartons quickly and intelligently has become a focus of urgent attention. Most factories on the market cannot handle large piles of cartons fully automatically, and generally handle cartons semi-automatically or manually.

[0003] Chinese invention patent CN114013767B discloses an intelligent carton destacking and destripping system with a high degree of automation, which can effectively reduce the labor intensity of workers. For enterprises, it can save too many resources required for workers to operate, simplify the operating steps of the operation process, effectively reduce labor costs, and improve labor productivity.

[0004] The above-mentioned device transports the stacked goods by means of a lifting chain structure. However, for multiple rows of stacked goods, it is difficult to ensure that the goods can be broken up layer by layer through this structure. Moreover, when the quantity of goods in each row varies, the lifting time of the above-mentioned lifting chain cannot be adjusted in time. Especially when there is a large amount of goods in one row, the goods may be blocked during transportation. In summary, there is still room for improvement in the above-mentioned device.

[0005] Therefore, it is necessary to provide a depalletizing system and method that can break up and disassemble carton stacks layer by layer to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide a depalletizing system and method for depalletizing carton stacks layer by layer, so as to solve the problem that the existing device proposed in the above background technology transports the stacked goods by setting up a lifting chain structure, but for multiple rows of stacked goods, it is difficult to ensure that the goods can be depalletized layer by layer through this structure, and when the quantity of each row of goods is different, the lifting time of the above lifting chain cannot be adjusted in time.

[0007] Based on the above ideas, the present invention provides the following technical solutions: a depalletizing system capable of breaking up and disassembling a stack of cartons layer by layer, comprising staggered brackets and a support frame, a plurality of groups of first rollers are rotatably mounted on the brackets, a plurality of groups of second rollers are rotatably mounted on the support frame, a connecting frame is provided at one end of the support frame close to the bracket, and a conveying roller is rotatably mounted in the connecting frame, and the rotation speed of the conveying roller is greater than the rotation speed of the first roller;

[0008] A plurality of baffle rods are provided at one end of the bracket, a sleeve is provided on the outer side of the baffle rod, and a traction assembly cooperating with the baffle rod is provided at the bottom end of the sleeve. When one end of the bracket deflects downward and drives the sleeve to rotate, the traction assembly can drive the baffle rod to move downward, so that the goods can be located above the baffle rod when sliding to one side of the support frame. When the front row of goods is offset from the baffle rod in the vertical direction, the baffle rod can bounce upward.

[0009] As a further solution of the present invention: a horizontal plate is fixedly installed on the bottom surface of the bracket near one end of the support frame, a roller is installed at the bottom of the horizontal plate, a top block is arranged below the roller, and an inclined surface is arranged at one end of the top block near the support frame, an L-shaped positioning plate is fixedly arranged on the end surface of one end of the top block near the support frame, and a U-shaped pull plate is arranged above the positioning plate.

[0010] As a further solution of the present invention: the traction assembly includes a connecting tube fixedly arranged below the sleeve, the sleeve cooperates with the connecting tube through a one-way bearing, an L-shaped hanging plate is arranged at the bottom of the connecting tube, the bottom end of the connecting tube is rotatably cooperated with the hanging plate, the baffle rod passes through the sleeve and the connecting tube, a guide block is fixedly arranged at the bottom end of the baffle rod, the guide block is elastically cooperated with the hanging plate, and the guide block can slide in the vertical direction along the hanging plate, a fixing ring is fixedly sleeved on the outer side of the baffle rod, an annular plate cooperating with the fixing ring is arranged on the connecting tube, a group of transversely distributed second magnets are fixedly embedded on the top surface of the annular plate, a group of longitudinally distributed first magnets are fixedly arranged on the bottom surface of the fixing ring, and the first magnet has different magnetic poles on the side opposite to the second magnet.

[0011] As a further solution of the present invention: a spiral limiting groove is provided on the outer peripheral surface of the sleeve, a limiting rod is fixedly provided at one end of the bracket close to the connecting frame, and the limiting rod extends into the limiting groove at one end away from the bracket.

[0012] As a further solution of the present invention: multiple groups of limit units are arranged between the pull plate and the positioning plate, and the limit units include two slides arranged opposite to each other, one of the slides is fixedly provided with a ring on the inner side surface, and the other slide is fixedly provided with a clamping ring on the inner side surface, one end of the clamping ring is slidably arranged in the ring and elastically cooperates with the slide, a protrusion is fixedly provided on the slide connected to the ring, one end of the protrusion extends into the clamping ring, a clamping block is elastically installed on the outer circumferential surface of the protrusion, and a clamping groove cooperating with the clamping block is opened on the inner wall of the clamping ring.

[0013] As a further solution of the present invention: an electromagnet is fixedly embedded at one end of the protrusion, and a magnetic block is provided at one end of the clamping block close to the electromagnet. When the electromagnet is energized, the electromagnet and the opposite side of the magnetic block have the same magnetic poles, a connecting rod is fixedly provided between the magnetic block and the clamping block, and a second switch is installed on the top surface of the fixing ring, and the second switch is electrically connected to the electromagnet.

[0014] As a further solution of the present invention: blocking bars are fixedly provided on both sides of the positioning plate.

[0015] As a further solution of the present invention: the cross section of the clamping ring is set to be T-shaped.

[0016] As a further solution of the present invention: the barrier rod is arranged in a T-shape, and a stopper portion parallel to the goods is arranged on the top of the barrier rod.

[0017] A method for depalletizing using the above-mentioned depalletizing system that can break up and disassemble carton stacks layer by layer includes the following steps: placing neatly stacked goods on a first roller, and transporting the goods to one side of a support frame through the first roller; driving one end of the support frame close to the support frame to deflect upward so that the goods on the first roller are higher than the support frame, and transporting the first row of goods to the second roller through a conveying roller.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This device can ensure that the goods in the front row are transferred to the second roller through the setting of the stop bar, and then limit the adjacent rows of goods, so that only one row of goods can be transported to the support frame at a time, which is conducive to completely breaking up the stacked goods;

[0020] 2. When the number of goods in a row is small, the bracket can deflect upward faster, thereby improving the efficiency of breaking up. When the number of goods in a row is large, the bracket can be lifted upward slowly, so that the goods conveyed to the support frame have sufficient time to stagger with the bracket. In addition, when the number of goods in a row is large, since the bracket can be lifted slowly, it can avoid the situation where the goods are blocked on the support frame, which is beneficial to provide sufficient time for the downstream to process the goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the cooperation between the top block and the roller of the present invention;

[0024] Figure 3 is a schematic diagram of the goods of the present invention being neatly placed on the first roller;

[0025] Figure 4 is a distribution diagram of the limiting units of the present invention;

[0026] Figure 5 The present invention Figure 2A schematic diagram of the enlarged structure at point A;

[0027] Figure 6 It is a schematic diagram of the structure of the fixing ring and the annular plate of the present invention;

[0028] Figure 7 is a first magnet distribution diagram of the present invention;

[0029] Figure 8 is a second magnet distribution diagram of the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the limiting unit of the present invention;

[0031] Fig.10 The present invention Fig. 9 A schematic diagram of the enlarged structure at B;

[0032] Fig.11 It is a schematic diagram of the structure of the stopper of the present invention.

[0033] In the figure: 1, bracket; 101, first roller; 102, support plate; 103, vertical plate; 104, horizontal plate; 105, protrusion; 2, support frame; 201, second roller; 3, connecting frame; 301, conveying roller; 4, positioning plate; 5, top block; 501, inclined plane; 6, roller; 7, slide rail; 8, goods; 9, sleeve; 901, limit groove; 10, hanging plate; 11, connecting pipe; 12, pull plate; 13, limit Unit; 14, first switch; 15, boss; 16, limit rod; 17, slide plate; 18, collar; 19, snap ring; 1901, slot; 20, stop bar; 21, stop rod; 2101, guide block; 22, second switch; 23, fixing ring; 2301, first magnet; 24, annular plate; 2401, second magnet; 25, protrusion; 2501, block; 26, electromagnet; 27, magnetic block; 28, stopper. DETAILED DESCRIPTION

[0034] like Figure 1-4 As shown, a depalletizing system and method for disassembling a carton stack layer by layer comprises a staggered support 1 and a support frame 2, wherein a plurality of first rollers 101 are rotatably mounted on the support 1, and a plurality of second rollers 201 are rotatably mounted on the support frame 2. This structure is conducive to conveying goods 8 on the X-axis and the Y-axis, referring to Figure 1, a connecting frame 3 is provided at one end of the support frame 2 close to the support frame 1, and a conveying roller 301 is rotatably installed in the connecting frame 3, wherein the rotation speed of the conveying roller 301 is greater than the rotation speed of the first roller 101. Specifically, the end of the support frame 1 close to the support frame 2 can be deflected in the vertical direction. Through this structure, during actual use, the neatly stacked goods 8 can be placed on the support frame 1 by using a suction cup. In the initial state, the end of the support frame 1 close to the connecting frame 3 is lower than the height of the support frame 2. Therefore, the first roller 101 can convey the goods 8 to the support frame 2 along the direction of the X-axis, and the goods 8 will be stuck on one side of the support frame 2, and when the end of the support frame 1 close to the connecting frame 3 deflects upward, the goods 8 will be stuck on one side of the support frame 2. When the goods 8 in the first row are rotated to be higher than the support frame 2, the force of the first roller 101 can push the goods 8 in the first row to the conveying roller 301. Since the conveying roller 301 has a faster speed, the goods 8 in the first row can be separated from the goods 8 in the second row and sent to the second roller 201. The goods 8 can be transported along the Y-axis direction by the second roller 201. When the goods 8 in the first row are conveyed to the second roller 201, the end of the bracket 1 close to the connecting frame 3 can be deflected downward and reset, so that the goods 8 in the second row can be pushed to the support frame 2 and finally stuck on one side of the support frame 2. The above process is repeated to stack the goods 8 (for example Figure 3 The goods 8 are broken up layer by layer and fed onto the second roller 201 for transmission.

[0035] like Figure 3-10 As shown, as a further extension of the above scheme, the present scheme is provided with multiple groups of baffle bars 21 at one end of the bracket 1 close to the support frame 2, and the baffle bars 21 are provided to ensure that only one layer of goods 8 is conveyed to the second roller 201 at a time. Specifically, a sleeve 9 is sleeved on the outer side of the baffle bar 21, and a traction assembly matching with the baffle bar 21 is provided at the bottom end of the sleeve 9. When one end of the bracket 1 deflects downward, the sleeve 9 can be driven to rotate, thereby driving the baffle bar 21 to move downward through the traction assembly, so that the goods 8 can be located above the baffle bar 21 when sliding to one side of the support frame 2, and when the front row of goods 8 is moved by the conveying roller 301 and staggered with the baffle bar 21 in the vertical direction, the baffle bar 21 can bounce upward, thereby preventing the next layer of goods 8 from being conveyed to the second roller 201.

[0036] In order to drive one end of the bracket 1 to deflect in the vertical direction, it can be driven by a hydraulic rod or other components. In this solution, a method of driving the bracket 1 to deflect is provided. Specifically, a horizontal plate 104 is fixedly installed on the bottom surface of the bracket 1 near one end of the support frame 2, and a roller 6 is fixedly installed on the bottom of the horizontal plate 104. A top block 5 matching with the roller 6 is arranged below the roller 6, and an inclined surface 501 is arranged at one end of the top block 5 near the support frame 2. In actual use, when the top block 5 is pulled to move in the direction of the support frame 2, the roller 6 can be lifted up by the inclined surface 501, thereby driving one end of the bracket 1 to be lifted upward;

[0037] Furthermore, an L-shaped positioning plate 4 is fixedly provided on the end face of the top block 5 close to the support frame 2, and a U-shaped pulling plate 12 is provided above the positioning plate 4, and the pulling plate 12 is driven by an outer power unit. This structure is conducive to driving the top block 5 to move in the horizontal direction.

[0038] The traction assembly includes a connecting tube 11 fixedly arranged below the sleeve 9, the sleeve 9 cooperates with the connecting tube 11 through a one-way bearing, so that the sleeve 9 can only drive the connecting tube 11 to rotate in a single direction, an L-shaped hanging plate 10 is arranged at the bottom of the connecting tube 11, the hanging plate 10 is fixedly connected to the support frame 2, and the bottom end of the connecting tube 11 is rotatably matched with the hanging plate 10, the blocking rod 21 passes through the sleeve 9 and the connecting tube 11 and can slide relative to both, specifically, a guide block 2101 is fixedly arranged at the bottom end of the blocking rod 21, the guide block 2101 is in the shape of a quadrangular prism, the guide block 2101 is elastically matched with the hanging plate 10, and the guide block 2101 can slide in the vertical direction along the hanging plate 10;

[0039] Furthermore, a fixing ring 23 is provided on the outer fixing sleeve of the blocking rod 21, and an annular plate 24 matching with the fixing ring 23 is provided on the connecting pipe 11. Figure 6 As shown, the annular plate 24 is located below the fixing ring 23, combined with Figure 6-8 As shown, a group of transversely distributed second magnets 2401 are fixedly embedded on the top surface of the annular plate 24, and a group of longitudinally distributed first magnets 2301 are fixedly installed on the bottom surface of the fixed ring 23. The first magnet 2301 and the second magnet 2401 have different magnetic poles on the opposite sides. When the connecting tube 11 drives the annular plate 24 to rotate 90°, the first magnet 2301 and the second magnet 2401 can be aligned with each other, thereby driving the blocking rod 21 to move downward.

[0040] In order to enable one end of the bracket 1 to drive the sleeve 9 to rotate during the deflection process, a spiral limiting groove 901 is provided on the outer peripheral surface of the sleeve 9, and a limiting rod 16 is fixedly provided at one end of the bracket 1 close to the connecting frame 3. Figure 4As shown, one end of the limiting rod 16 away from the bracket 1 extends into the limiting groove 901. Specifically, one end of the bracket 1 can drive the sleeve 9 to rotate one circle in a reciprocating deflection stroke.

[0041] In actual use, when one end of the bracket 1 is deflected downward relative to the connecting frame 3, the goods 8 on the first roller 101 can move to the side of the blocking rod 21. At the same time, one end of the limiting rod 16 can move downward along the limiting groove 901, thereby driving the sleeve 9 to rotate. When the sleeve 9 rotates to 90°, the first magnet 2301 and the second magnet 2401 are aligned with each other in the vertical direction, thereby driving the blocking rod 21 to move downward through the suction force of the two. When the top of the blocking rod 21 is staggered from the goods 8, the goods 8 can be moved to one side of the support frame 2 through the first roller 101 and placed above the corresponding blocking rod 21. When one end of the bracket 1 is deflected downward to the extreme position, the sleeve 9 is driven to rotate through the cooperation of the limiting rod 16 and the limiting groove 901. After one rotation, the first magnet 2301 and the second magnet 2401 return to their initial positions in the vertical direction (i.e., they are offset from each other in the vertical direction), so that the baffle 21 can pop up. However, due to the pressure of the goods 8 acting on the baffle 21, the baffle 21 does not pop up. Specifically, when one end of the bracket 1 is deflected upward and higher than the support frame 2, the goods 8 on the baffle 21 can be transferred to the second roller 201. Of course, as the goods 8 and the baffle 21 are offset in the horizontal direction, the baffle 21 can pop out smoothly and get stuck on one side of the goods 8 in the second row, so as to ensure that only the goods 8 in the front row can be transferred to the second roller 201 each time, which is conducive to completely breaking up the neatly stacked goods 8.

[0042] Of course, in the specific use process, considering that the contact area between the barrier rod 21 and the goods 8 is limited, in order to limit the goods 8 more stably, the barrier rod 21 can be set to a T-shape, that is, the top of the barrier rod 21 is provided with a stopper 28 parallel to the goods 8, specifically refer to Fig.11 As shown, the contact area between the barrier bar 21 and the cargo 8 is increased.

[0043] To sum up, this device can ensure that the goods 8 in the front row are transferred to the second roller 201 through the setting of the baffle bar 21, and then limit the adjacent rows of goods 8, so that only one row of goods 8 can be transported to the support frame 2 at a time, which is conducive to completely breaking up the stacked goods 8.

[0044] Reference Figure 3As shown, the number of goods 8 in each row is three. Therefore, during the conveying process, it is necessary to wait until the three goods 8 are completely staggered with the bracket 1 in the horizontal direction before driving one end of the bracket 1 to deflect upward again to convey the next row of goods 8. However, when the number of goods 8 in each row is two or one, the timing of the upward deflection of the end of the bracket 1 close to the connecting frame 3 will be different. According to this logic, the present solution is provided with multiple groups of limit units 13 between the pull plate 12 and the positioning plate 4;

[0045] The limiting unit 13 includes two slide plates 17 arranged opposite to each other, wherein a collar 18 is fixedly arranged on the inner side of one of the slide plates 17, and a clamping ring 19 is fixedly arranged on the inner side of the other slide plate 17, one end of the clamping ring 19 is slidably arranged in the collar 18, and the cross section of the clamping ring 19 is arranged in a T shape, so as to prevent the clamping ring 19 from being disengaged from the collar 18;

[0046] A protrusion 25 is fixedly provided on the slide plate 17 connected to the collar 18, one end of the protrusion 25 extends into the snap ring 19, a clamping block 2501 is elastically installed on the outer peripheral surface of the protrusion 25, and a clamping groove 1901 matching with the clamping block 2501 is provided on the inner wall of the snap ring 19, the clamping groove 1901 is an annular structure, and a limit spring is sleeved on the outer side of the protrusion 25, and the limit spring is located between the snap ring 19 and the slide plate 17;

[0047] Furthermore, an electromagnet 26 is fixedly embedded at one end of the protrusion 25, and a magnetic block 27 is provided at one end of the block 2501 close to the electromagnet 26. When the electromagnet 26 is energized, the electromagnet 26 and the magnetic block 27 have the same magnetic poles on the opposite sides, and a connecting rod is fixedly provided between the magnetic block 27 and the block 2501, and the connecting rod passes through the protrusion 25 and slides with it.

[0048] In order to enable each baffle rod 21 to communicate with the limit unit 13, a second switch 22 is installed on the top surface of the fixing ring 23. In actual use, the number of baffle rods 21 corresponds to the number of electromagnets 26, so that the second switch 22 on the outside of the baffle rod 21 can be electrically connected to the corresponding electromagnet 26 to control the electromagnet 26. In specific applications, the second switch 22 can be connected to the electromagnet 26 by electrical connection or signal connection.

[0049] Here, the working principle of the above scheme is introduced. When there is only one cargo 8 in a row on the first roller 101, after one end of the bracket 1 is deflected downward, the cargo 8 will be located on the top of one of the baffles 21, and at this time, all the baffles 21 are retracted in the sleeve 9, so that multiple electromagnets 26 are in a de-energized state. Therefore, the two slides 17 in the limit unit 13 are farthest apart. When one end of the bracket 1 is deflected downward to the extreme position, except for the baffle 21 under the cargo 8, the other baffles 21 are in a pop-up state. When the baffle 21 pops up, the switch on the fixing ring 23 will contact the connecting tube 11, so that the corresponding electromagnet 26 is in a powered state. When the electromagnet 26 is powered, it uses its repulsive force on the magnetic block 27. It can drive the block 2501 to move outward, so that one end of the block 2501 is inserted into the slot 1901, so that the two slides 17 in this limit unit 13 are in a locked state and cannot move relative to each other. At this time, when the pull plate 12 moves in the direction away from the top block 5, it only needs to compress one group of limit units 13 to pull the top block 5 to move, thereby being able to drive one end of the bracket 1 to deflect upward more quickly. Similarly, when the number of a row of goods 8 is equal to the number of set baffles 21, then when one end of the bracket 1 deflects downward, all the electromagnets 26 are in a power-off state. At this time, the pull plate 12 needs to compress multiple groups of limit units 13 when moving before it can pull the top block 5, so that one end of the bracket 1 can be deflected upward more slowly.

[0050] In summary, when several groups of blocking rods 21 pop up upward, the slide plates 17 in the corresponding groups of limiting units 13 will be locked. At this time, the number of limiting units 13 that need to be compressed by the pull plate 12 during the movement will be reduced, so that one end of the bracket 1 can be driven to deflect upward more quickly. Specifically, when the number of goods 8 in a row is small, the bracket 1 can deflect upward more quickly, thereby improving the efficiency of breaking up. When the number of goods 8 in a row is large, the bracket 1 can be slowly lifted upward, so that the goods 8 conveyed to the support frame 2 have sufficient time to stagger with the bracket 1.

[0051] In addition, when there are a large number of goods 8 in a row, since the bracket 1 can be lifted slowly, it can avoid the goods 8 from being blocked on the support frame 2, which is beneficial to provide sufficient time for the downstream to process the goods 8.

[0052] Reference Figure 1 As shown, the connecting frame 3 can be fixed to the supporting frame 2, and the first roller 101, the second roller 201 and the conveying roller 301 can be driven by chains to operate.

[0053] A supporting leg is fixedly provided at the bottom of the supporting frame 2, a supporting plate 102 is provided at one end of the supporting frame 1 away from the supporting frame 2, a circular shaft is fixedly provided on the supporting frame 1, the circular shaft passes through the supporting plate 102 and rotates with it, and this structure enables the supporting frame 1 to deflect, and vertical plates 103 are provided on both sides of one end of the supporting frame 2 of the supporting frame 1, a boss 15 is provided on the inner side of the vertical plate 103, and the boss 15 is located below the supporting frame 1 for supporting it, a mounting plate is fixedly provided on the vertical plate 103, a vertical rod is fixedly provided at the bottom of the boss 15, the vertical rod passes through the mounting plate and slides with it, and a supporting spring is fixedly provided between the boss 15 and the mounting plate.

[0054] A slide rail 7 is fixedly installed on the ground, and the top block 5 is slidably set on the slide rail 7. In addition, a slide rod can be fixedly installed on the positioning plate 4 and the pull plate 12, so that the bottom end of the slide rod slides on the slide rail 7, and the above-mentioned power unit can be a hydraulic rod, and the telescopic end of the hydraulic rod is fixedly connected to the pull plate 12. Of course, the pull plate 12 can also be driven to move by the cooperation of the motor and the screw rod.

[0055] Reference Figure 4 As shown, in actual use, a protrusion 105 can be fixedly installed on the side of the bracket 1, and a first switch 14 is provided on the upper and lower sides of the protrusion 105. The first switch 14 is installed on the support plate 102, and the first switch 14 can be connected to the above-mentioned power unit through a controller (such as a PLC or a single-chip microcomputer, etc.). In specific use, when the bracket 1 deflects upward to the extreme position, the protrusion 105 will contact the upper first switch 14, so that the power unit can drive the bracket 1 to deflect downward within a period of time. Similarly, when the bracket 1 deflects downward to the extreme position, it will contact the lower first switch 14, thereby driving the bracket 1 to deflect upward. Through this structure, automatic control of the deflection of the bracket 1 can be achieved. Of course, the program design and circuit control therein are mature technical means in the electrical field, which will not be elaborated here.

[0056] Reference Figure 5 As shown, blocking bars 20 are fixedly provided on both sides of the positioning plate 4 to position the limiting unit 13 and prevent it from being separated from the positioning plate 4 .

[0057] A side plate is fixedly provided on a side of the support frame 2 away from the bracket 1 to prevent the goods 8 from falling.

[0058] Reference Figure 6As shown, a convex ring is fixedly installed on the top end face of the connecting tube 11, the one-way bearing is located between the convex ring and the sleeve 9, the annular plate 24 is fixed inside the connecting tube 11, and a positioning block is integrally formed on the top of the annular plate 24 to avoid contact between the fixing ring 23 and the annular plate 24, and a mounting hole with a T-shaped cross-section is opened on the hanging plate 10 for mounting the connecting tube 11 and the guide block 2101, and a spring is fixedly arranged between the bottom end face of the mounting hole and the guide block 2101.

[0059] The protrusion 25 is provided with a mounting groove for mounting the electromagnet 26, and the magnetic block 27 is located in the mounting groove. The outer peripheral surface of the protrusion 25 is provided with a notch for slidingly cooperating with the clamping block 2501, and a first spring is fixedly arranged between the inner end surface of the notch and the clamping block 2501.

Claims

1. A depalletizing system capable of breaking up and disassembling a stack of cartons layer by layer, comprising a staggered bracket (1) and a support frame (2), wherein a plurality of groups of first rollers (101) are rotatably mounted on the bracket (1), and a plurality of groups of second rollers (201) are rotatably mounted on the support frame (2), wherein: A connecting frame (3) is provided at one end of the support frame (2) close to the bracket (1), and a conveying roller (301) is rotatably installed in the connecting frame (3), and the rotation speed of the conveying roller (301) is greater than the rotation speed of the first roller (101); A plurality of groups of blocking rods (21) are arranged at one end of the support (1), a sleeve (9) is sleeved on the outer side of the blocking rod (21), and a traction assembly cooperating with the blocking rod (21) is arranged at the bottom end of the sleeve (9); when one end of the support (1) deflects downward and drives the sleeve (9) to rotate, the traction assembly can drive the blocking rod (21) to move downward, so that the goods (8) can be located above the blocking rod (21) when sliding to one side of the support frame (2); when the goods (8) in the front row are offset from the blocking rod (21) in the vertical direction, the blocking rod (21) can bounce upward; A transverse plate (104) is fixedly mounted on one end of the bottom surface of the bracket (1) close to the support frame (2), a roller (6) is mounted on the bottom of the transverse plate (104), a top block (5) is arranged below the roller (6), and an inclined surface (501) is arranged on one end of the top block (5) close to the support frame (2), an L-shaped positioning plate (4) is fixedly mounted on the end surface of one end of the top block (5) close to the support frame (2), and a U-shaped pulling plate (12) is arranged above the positioning plate (4); The traction assembly comprises a connecting tube (11) fixedly arranged below the sleeve (9); the sleeve (9) cooperates with the connecting tube (11) via a one-way bearing; an L-shaped hanging plate (10) is arranged at the bottom of the connecting tube (11); the bottom end of the connecting tube (11) is rotatably matched with the hanging plate (10); the blocking rod (21) passes through the sleeve (9) and the connecting tube (11); a guide block (2101) is fixedly arranged at the bottom end of the blocking rod (21); the guide block (2101) is elastically matched with the hanging plate (10), and the guide block (2101) is rotatably matched with the hanging plate (10). 101) can slide along the hanging plate (10) in the vertical direction, the outer fixed sleeve of the blocking rod (21) is provided with a fixing ring (23), the connecting pipe (11) is provided with an annular plate (24) matched with the fixing ring (23), the top surface of the annular plate (24) is fixedly embedded with a group of second magnets (2401) distributed laterally, and the bottom surface of the fixing ring (23) is fixedly provided with a group of first magnets (2301) distributed longitudinally, and the first magnet (2301) has different magnetic poles on the side opposite to the second magnet (2401); A spiral limiting groove (901) is provided on the outer peripheral surface of the sleeve (9), and a limiting rod (16) is fixedly provided at one end of the bracket (1) close to the connecting frame (3), and an end of the limiting rod (16) away from the bracket (1) extends into the limiting groove (901).

2. A depalletizing system capable of breaking up and disassembling a carton stack layer by layer according to claim 1, characterized in that: A plurality of groups of limiting units (13) are arranged between the pull plate (12) and the positioning plate (4), and the limiting units (13) include two slide plates (17) arranged opposite to each other, wherein a sleeve ring (18) is fixedly arranged on the inner side surface of one of the slide plates (17), and a clamping ring (19) is fixedly arranged on the inner side surface of the other slide plate (17), one end of the clamping ring (19) is slidably arranged in the sleeve ring (18) and elastically cooperates with the slide plate (17), a protrusion (25) is fixedly arranged on the slide plate (17) connected to the sleeve ring (18), one end of the protrusion (25) extends into the clamping ring (19), a clamping block (2501) is elastically installed on the outer peripheral surface of the protrusion (25), and a clamping groove (1901) cooperating with the clamping block (2501) is provided on the inner wall of the clamping ring (19).

3. A depalletizing system capable of breaking up and disassembling a carton stack layer by layer according to claim 2, characterized in that: An electromagnet (26) is fixedly embedded in one end of the protrusion (25); a magnetic block (27) is arranged at one end of the clamping block (2501) close to the electromagnet (26); when the electromagnet (26) is energized, the electromagnet (26) and the magnetic block (27) have the same magnetic pole on their opposite sides; a connecting rod is fixedly arranged between the magnetic block (27) and the clamping block (2501); a second switch (22) is installed on the top surface of the fixing ring (23); and the second switch (22) is electrically connected to the electromagnet (26).

4. A depalletizing system capable of breaking up and disassembling a carton stack layer by layer according to claim 1, characterized in that: Blocking bars (20) are fixedly arranged on both sides of the positioning plate (4).

5. The depalletizing system for depalletizing carton stacks layer by layer according to claim 2, characterized in that: The cross section of the clamping ring (19) is arranged to be T-shaped.

6. The depalletizing system for depalletizing carton stacks layer by layer according to claim 1, characterized in that: The barrier rod (21) is arranged in a T-shape, and a stopper (28) parallel to the cargo (8) is arranged at the top of the barrier rod (21).

7. A method for depalletizing using the depalletizing system capable of breaking up and disassembling a carton stack layer by layer as claimed in any one of claims 1 to 6, characterized in that: The method comprises the following steps: placing neatly stacked goods (8) on a first roller (101), and transporting the goods (8) to one side of a support frame (2) via the first roller (101); driving one end of the support frame (1) close to the support frame (2) to deflect upward, so that the goods (8) on the first roller (101) are higher than the support frame (2), and transporting the first row of goods (8) to a second roller (201) via a conveying roller (301).

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