A floor-standing palletizing device

Abstract

The present invention discloses a floor-standing depalletizing device, which can allow a manual trolley to land and position, and can perform depalletizing operations on multiple stacked turnover boxes on the manual trolley after landing and positioning, and the number of single depalletizing operations can be variable, with good flexibility and strong adaptability. After the depalletizing operations on multiple stacked turnover boxes are completed, the empty manual trolley can be automatically transferred away. In addition, the depalletizing operations can also be performed on multiple stacked manual trolleys. The operation process is simple and efficient, which can greatly reduce the labor intensity of workers. The main structure of the present application includes a main frame, a transplanting mechanism, a roller conveyor line and two trolley positioning mechanisms. The transplanting mechanism includes two fork-picking mechanisms, two lifting mechanisms and a translation mechanism; the fork-picking mechanism includes a fork-picking base, a clamping mechanism and a fork-picking cylinder. The fork-picking mechanism can be driven up and down by the lifting mechanism. The trolley positioning mechanism includes a base plate seat, and the base plate seat is provided with two front wheel positioning grooves and two rear wheel positioning grooves.

Description

Technical Field

[0001] The invention belongs to the technical field of electric energy meter production lines, turnover box depalletizing and stacking equipment, and manual trolley depalletizing and stacking equipment, and in particular relates to a floor-standing depalletizing and stacking device. Background Art

[0002] During the production and transportation of electricity meters, turnover boxes and manual carts are used. The turnover boxes can be used to hold multiple electricity meters, stacked from bottom to top. The manual cart can accommodate multiple stacked turnover boxes, allowing the cart to be moved and transported. In existing technology, the main structure of a manual cart consists of a deck, two front fixed wheels, and two rear universal wheels. The rear universal wheels are equipped with universal brakes, and the cart can be moved by a worker pushing it. Summary of the Invention

[0003] The present invention provides a floor-type depalletizing and stacking device, which can allow a manual trolley to land and position, and can perform depalletizing operations on multiple stacked turnover boxes on the landed and positioned manual trolley, and the number of single depalletizing and stacking operations can be variable, with good flexibility and strong adaptability. When the depalletizing and stacking operations on multiple stacked turnover boxes are completed, the empty manual trolley can be automatically transferred away. In addition, the depalletizing and stacking operations can also be performed on multiple stacked manual trolleys. The operation process is simple and efficient, and the labor intensity of workers can be greatly reduced.

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

[0005] A floor-standing depalletizing device can be used to depalletize turnover boxes stacked on a manual trolley. The manual trolley includes a vehicle deck, two front fixed wheels, and two rear universal wheels. The vehicle deck is provided with two front positioning grooves and two rear positioning grooves. The rear universal wheels are provided with universal wheel brakes. The universal wheel brakes include foot-operated brake components, which include foot plates and friction covers for clamping on the rear universal wheels.

[0006] It includes a main frame, a transplanting mechanism, a roller conveyor line, and two trolley positioning mechanisms installed on the ground and used to position the manual trolley. One trolley positioning mechanism, the other trolley positioning mechanism, and the roller conveyor line are arranged in sequence along the conveying direction of the roller conveyor line. The transplanting mechanism includes two symmetrically arranged fork-picking mechanisms, two lifting mechanisms corresponding to the fork-picking mechanisms, and a translation mechanism for driving the lifting mechanisms to translate together.

[0007] The forking mechanism includes a forking base, a clamping plate mechanism provided on the forking base and used for contacting the turnover box, and a forking cylinder for driving the clamping plate mechanism to move. In the corresponding forking mechanism and lifting mechanism: the forking mechanism can be driven to rise and fall by the lifting mechanism;

[0008] The trolley positioning mechanism includes a base plate. In one trolley positioning mechanism, two front wheel positioning grooves and two rear wheel positioning grooves are provided on the base plate.

[0009] Preferably, the clamping mechanism includes a base plate and two pressure plates, and the pressure plates are provided with a number of sliding rods slidably connected to the base plates. On one pressure plate: the pressure plate is provided with a pressure spring, one end of the pressure spring is connected to the pressure plate, and the other end of the pressure spring is connected to the base plate.

[0010] Preferably, a protection mechanism is provided on the trolley positioning mechanism. In a trolley positioning mechanism: the protection mechanism includes a protection cylinder, an inner rotating shaft fixed relative to the cylinder body of the protection cylinder, an inner fixed seat fixed to the base plate seat, an outer fixed seat fixed to the base plate seat, an outer rotating shaft rotatably connected to the outer fixed seat, a connecting rod connected to the outer rotating shaft, and a rear protection block for preventing the manual trolley from detaching from the base plate seat. The inner rotating shaft is rotatably connected to the inner fixed seat, the cylinder rod of the protection cylinder is hinged to one end of the connecting rod, and the rear protection block is fixed to the other end of the connecting rod.

[0011] Preferably, it also includes a lifting frame, a lifting motor and a lifting spindle driven by the lifting motor. The lifting mechanism includes a lifting belt, an upper pulley rotatably connected to the lifting frame and a lower pulley rotatably connected to the lifting frame. The upper pulley is coaxially fixed to the lifting spindle. In the corresponding fork mechanism and lifting mechanism: the lifting belt passes around the upper pulley and the lower pulley, the lifting belt cooperates with the upper pulley, the lifting belt cooperates with the lower pulley, the fork base is connected to the lifting belt, and the fork base is slidably connected to the lifting frame.

[0012] Preferably, it also includes a translation motor, and the translation mechanism includes a translation belt, a front pulley rotatably connected to the main frame, and a rear pulley rotatably connected to the main frame. The rear pulley is driven by the translation motor, and the translation belt passes around the front pulley and the rear pulley. The translation belt cooperates with the front pulley, the translation belt cooperates with the rear pulley, the lifting frame is connected to the translation belt, and the lifting frame is slidably connected to the main frame.

[0013] Preferably, the base seat is provided with a backrest seat for limiting the front end of the manual trolley and two side limit plates for limiting the sides of the manual trolley. In a trolley positioning mechanism: the length direction of the side limit plate is parallel to the forward direction of the manual trolley when it enters the trolley positioning mechanism.

[0014] Preferably, the trolley positioning mechanism also includes a ramp plate. In a trolley positioning mechanism, the ramp plate, the rear positioning groove and the front positioning groove are arranged in sequence along the forward direction when the manual trolley enters the trolley positioning mechanism, one end of the ramp plate is docked with the ground, and the other end of the ramp plate is docked with the vehicle plate.

[0015] Preferably, the bottom plate is provided with two guide plates corresponding to the rear universal wheels one by one, and the guide plates include an outer guide section and an inner limit section;

[0016] In the corresponding rear universal wheel and guide plate: the side of the outer guide segment that contacts the rear universal wheel is the outer guide outer side surface, and the side of the inner limit segment that contacts the rear universal wheel is the inner limit outer side surface;

[0017] In the forward direction of the manual trolley when entering the trolley positioning mechanism: the distance between the two outer guide outer sides gradually increases;

[0018] When all rear universal wheels of the manual trolley fall into the rear wheel positioning grooves: any inner limit section is located between the two rear universal wheels.

[0019] Preferably, when the foot-operated brake member is in the braking position, the angle between the foot-operated plate and the horizontal plane is 90 degrees;

[0020] In the trolley positioning mechanism adjacent to the roller conveyor line, there are also two position-following brake structures corresponding one to one with the rear universal wheels. The position-following brake structures include a vertical shaft rotatably connected to the base plate, a torsion spring sleeved on the vertical shaft, a top wheel provided above the guide plate and used to push the foot pedal, and a stopper fixed to the base plate, the stopper being located between the two inner limit sections.

[0021] In the corresponding rear universal wheel and position-following brake structure: one end of the torsion spring is connected to the base plate seat, and the other end of the torsion spring is connected to the guide plate. When the rear universal wheel is separated from the guide plate, the outer guide section contacts the block. When the rear universal wheel falls into the rear wheel positioning groove, the inner side of the rear universal wheel contacts the outer side surface of the inner limit, the guide section is separated from the block, and the side wall of the top wheel is attached to the foot pedal. At this time, the foot-operated brake component is in the braking position.

[0022] The beneficial effects of the present invention are: it can allow the manual trolley to be placed and positioned, and can perform depalletizing operations on multiple stacked turnover boxes on the manual trolley after placement and positioning, and the number of single depalletizing is variable, with good flexibility and strong adaptability. When the depalletizing operations on multiple stacked turnover boxes are completed, the empty manual trolley can be automatically transferred away. In addition, it can also perform depalletizing operations on multiple stacked manual trolleys. The operation process is simple and efficient, which can greatly reduce the labor intensity of workers; when the manual trolley completely enters the trolley positioning mechanism adjacent to the roller conveyor line, the universal wheel brake will automatically reach the braking state, which can avoid the problem of "the manual trolley and turnover box are unstable during the depalletizing process due to forgetting to brake, thereby greatly increasing the risk of the turnover box or manual trolley shaking or falling." BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a structural diagram of embodiment 1 of the present invention;

[0024] Figure 2 is a side view of embodiment 1 of the present invention;

[0025] Figure 3 It is a structural diagram of the lifting frame of the present invention;

[0026] Figure 4 yes Figure 1 Enlarged view of point A in the middle;

[0027] Figure 5 yes Figure 1 Enlarged view of point B in the middle;

[0028] Figure 6 yes Figure 1 Enlarged view of point C in the middle;

[0029] Figure 7 yes Figure 2 Enlarged view of point D in the middle;

[0030] Figure 8 yes Figure 3 Enlarged view of point E in the middle;

[0031] Figure 9 It is a structural diagram of the artificial trolley of the present invention;

[0032] Figure 10 It is a structural schematic diagram of the bottom plate seat of the present invention;

[0033] Figure 11 It is a structural schematic diagram of the connecting rod of the present invention;

[0034] Figure 12 Schematic diagram of the structure of the universal rear wheel in embodiment 2 of the present invention;

[0035] Figure 13 This is a schematic structural diagram of the guide plate in one state in Example 2 of the present invention;

[0036] Figure 14 It is a schematic diagram of the partial structure of Example 2 of the present invention;

[0037] Figure 15 It is a schematic structural diagram of the guide plate in another state in Example 2 of the present invention.

[0038] Figure 1: Vehicle plate 1, front positioning groove 1a, rear positioning groove 1b, front fixed wheel 101, rear universal wheel 102, foot-operated brake component 103, foot-operated plate 103.1, friction cover 103.2, brake shaft 104, main frame 2, roller conveyor line 3, fork-taking mechanism 4, fork-taking base 401, clamping plate mechanism 402, base plate 402.1, pressure plate 402.2, slide bar 402.3, pressure spring 402.4, fork-taking cylinder 403, bottom plate base 501, front wheel positioning groove 501a, rear wheel positioning groove 501b, protection cylinder 502.1, inner shaft 502.2, inner fixing Seat 502.3, external fixed seat 502.4, external rotating shaft 502.5, connecting rod 502.6, rear protection block 503, backrest seat 504, side limit plate 505, ramp plate 506, guide plate 507, external guide section 507.1, internal limit section 507.2, vertical rotating shaft 508.1, torsion spring 508.2, top wheel 508.3, stopper 508.4, lifting frame 601, lifting motor 602, lifting belt 603, upper pulley 604, lower pulley 605, translation motor 701, translation belt 702, front pulley 703, rear pulley 704, turnover box 8. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0040] Example 1:

[0041] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 As shown,

[0042] A floor-standing depalletizing device can be used to depalletize turnover boxes stacked on a manual trolley, and can also be used to depalletize stacked manual trolleys. The manual trolley includes a vehicle plate 1, two front fixed wheels 101 and two rear universal wheels 102. The vehicle plate 1 is provided with two front positioning grooves 1a adapted to the front fixed wheels 101 and two rear positioning grooves 1b adapted to the rear universal wheels 102. The rear universal wheels 102 are provided with universal wheel brakes, which include foot-operated brake components 103 and brake components connected to the vehicle plate. The wheel frame of the rear universal wheel 102 is rotatably connected to a brake shaft 104. The foot-operated brake member 103 includes a pedal plate 103.1 and a friction cover 103.2 for engaging with the rear universal wheel 102. The pedal plate 103.1 is fixed to the friction cover 103.2, and the brake shaft 104 is fixed to the friction cover 103.2. The brake shaft 104 and the wheel frame of the rear universal wheel 102 are self-locking due to friction. The highest point of the pedal plate 103.1 is lower than the lowest point of the brake shaft 104.

[0043] When the foot-operated brake member 103 is in the braking position: a portion of both end surfaces of the rear universal wheel 102 is pressed against the friction cover 103.2, a portion of the circumferential surface of the rear universal wheel 102 is pressed against the friction cover 103.2, and the angle between the foot plate 103.1 and the horizontal plane is M degrees, M ≥ 75;

[0044] For a manual trolley: when both rear universal wheels 102 fall into the rear positioning groove 1b, the foot plate 103.1, the rear universal wheels 102 and the front fixed wheels 101 are arranged in sequence along the forward direction of the manual trolley when it enters the trolley positioning mechanism;

[0045] It includes a main frame 2, a transplanting mechanism, a roller conveyor line 3 and two trolley positioning mechanisms provided on the ground for positioning a manual trolley. One trolley positioning mechanism, another trolley positioning mechanism and the roller conveyor line 3 are arranged in sequence along the conveying direction of the roller conveyor line 3. The transplanting mechanism includes two symmetrically arranged fork-picking mechanisms 4, two lifting mechanisms corresponding to the fork-picking mechanisms 4, and a translation mechanism for driving the lifting mechanisms to translate together. The translation direction of the translation mechanism is parallel to the conveying direction of the roller conveyor line 3.

[0046] The forking mechanism 4 includes a forking base 401, a clamping plate mechanism 402 provided on the forking base 401 and used to contact the turnover box, and a forking cylinder 403 for driving the clamping plate mechanism 402 to move. In the corresponding forking mechanism 4 and the lifting mechanism: the forking mechanism 4 can be driven to rise and fall by the lifting mechanism, and the cylinder body of the forking cylinder 403 is provided on the forking base 401;

[0047] The trolley positioning mechanism includes a base plate 501 . In one trolley positioning mechanism, the base plate 501 is provided with two front wheel positioning grooves 501 a adapted to the front fixed wheels 101 and two rear wheel positioning grooves 501 b adapted to the rear universal wheels 102 .

[0048] Figure 2 In the figure, the conveying direction of the roller conveyor line 3 is from right to left.

[0049] A manual cart is stacked with multiple turnover boxes 8. A worker pushes the cart, carrying the boxes on it, forward, forcing it into the cart positioning mechanism adjacent to the roller conveyor line 3. The front fixed wheel 101 passes through the rear wheel positioning groove 501b and eventually settles into the front wheel positioning groove 501a. The rear universal wheel 102 then enters and eventually settles into the rear wheel positioning groove 501b. The worker then steps on the foot-operated brake 103.1, which drives the friction cover 103.2 to rotate along the brake shaft 104 and eventually cover and lock onto the rear universal wheel 102. Note: Universal wheel brakes are conventional. The foot-operated brake 103.1, friction cover 103.2, and other components are conventional universal wheel brake components. The roller conveyor line is also conventional.

[0050] Afterwards, the translation mechanism can drive the entire lifting mechanism to translate, and then the lifting mechanism drives the two forking mechanisms 4 (clamping mechanism 402) to move to both sides of the turnover box (which turnover box is specifically, can be set according to needs. For example, if three turnover boxes are to be taken away at a time, then the two clamping mechanisms 402 will fall to both sides of the third turnover box from the top to the bottom, which also means that the number of single depalletizing is flexible), the forking cylinder 403 drives the clamping mechanism 402 to move, and the clamping mechanism 402 clamps the turnover box (the turnover box can be called The lifting mechanism then drives the clamping mechanism 402 upward, and the translation mechanism drives the lifting mechanism and the clamping mechanism 402 to translate together to above the roller conveyor line 3. The lifting mechanism then drives the clamping mechanism 402 downward, causing the "clamped turnover box" and the turnover boxes stacked on it to fall onto the roller conveyor line 3 (the bottom of the "clamped turnover box" contacts the roller conveyor line 3). The fork cylinder 403 then drives the clamping mechanism 402 to release the turnover box, completing a depalletizing operation. The roller conveyor line 3 can then convey the turnover box to the subsequent workstation.

[0051] When all the turnover boxes stacked on the manual trolley are transferred away (after the depalletizing operation of the turnover boxes on a manual trolley is completely completed), the translation mechanism will drive the entire lifting mechanism to move horizontally above the above-mentioned manual trolley (called "depalletizing empty trolley"), and then the lifting mechanism drives the two fork-picking mechanisms 4 (clamping mechanism 402) to move to both sides of the "depalletizing empty trolley", and the fork-picking cylinder 403 drives the clamping mechanism 402 to move, and the clamping mechanism 402 clamps the "depalletizing empty trolley", and then the lifting mechanism drives the clamping mechanism 402 to rise, and the translation mechanism drives the lifting mechanism and the clamping mechanism 402 to move horizontally together away from the roller conveyor line 3 The lifting mechanism drives the clamping plate mechanism 402 to descend, so that the "empty car for depalletizing" falls on the car positioning mechanism far away from the roller conveyor line 3 (if there is no manual car on the car positioning mechanism far away from the roller conveyor line 3, the front fixed wheel 101 of the "empty car for depalletizing" will fall into the front wheel positioning groove 501a, and the rear universal wheel 102 of the "empty car for depalletizing" will fall into the rear wheel positioning groove 501b; if there is already a manual car on the car positioning mechanism far away from the roller conveyor line 3, the "empty car for depalletizing" will be stacked on it, thus forming a state of stacking manual cars).

[0052] When stacking two adjacent manual carts, the front fixed wheels 101 of the upper cart will fit into the front positioning slots 1a of the lower cart, and the rear universal wheels 102 of the rear cart will fit into the rear positioning slots 1b of the lower cart. When a certain number of manual carts are stacked on the cart positioning mechanism farther from the roller conveyor line 3, a worker can push them away (before pushing, the worker releases the universal wheel brakes on the lower cart).

[0053] Similarly, when stacked manual carts need to be depalletized, they are pushed into the cart positioning mechanism adjacent to the roller conveyor line 3. A worker then steps on the foot-operated brake 103 on the bottom manual cart, causing the friction cover 103.2 to rotate along the brake shaft 104 and eventually cover and latch onto the rear universal wheel 102. During the subsequent depalletizing process, the operating principles of each mechanism are the same as those for depalletizing turnover boxes and will not be detailed here. The only difference is that during depalletizing of stacked turnover boxes, the bottom manual cart is not clamped, whereas during depalletizing of stacked manual carts, the bottom manual cart can be clamped if necessary.

[0054] like Figure 8As shown, the clamping mechanism 402 includes a base plate 402.1 and two pressure plates 402.2. The pressure plate 402.2 is provided with a number of sliding rods 402.3 that are slidably connected to the base plate 402.1. The sliding direction of the sliding rod 402.3 is parallel to the extension and contraction direction of the cylinder rod of the fork cylinder 403. The extension and contraction direction of the cylinder rod of the fork cylinder 403 is horizontal and perpendicular to the conveying direction of the roller conveyor line 3. The cylinder rod of the fork cylinder 403 is connected to the base plate 402.1. On one of the pressure plates 402.2: a pressure spring 402.4 is provided on the pressure plate 402.2. One end of the pressure spring 402.4 is connected to the pressure plate 402.2, and the other end of the pressure spring 402.4 is connected to the base plate 402.1.

[0055] Each forking cylinder 403 drives each base plate 402.1 to move, bringing the two base plates 402.1 closer together and the two pressure plates 402.2 closer together. The two pressure plates 402.2 clamp one of the turnover boxes. At this time, the pressure spring 402.4 is in a compressed state, thus achieving the clamping of the turnover box (when the pressure plates 402.2 in the clamping mechanism 402 move relative to the base plates 402.1, the slide rod 402.3 serves as a guide). When resetting, each forking cylinder 403 drives each base plate 402.1 to move, moving the two base plates 402.1 and the pressure plates 402.2 away from each other. During this process, under the action of the pressure spring 402.4, the pressure plates 402.2 in the clamping mechanism 402 also move relative to the base plates 402.1, ultimately achieving the reset of the relevant structures.

[0056] like Figure 10 、 Figure 11 As shown, the trolley positioning mechanism is provided with a protection mechanism. In one trolley positioning mechanism, the protection mechanism includes a protection cylinder 502.1, an inner shaft 502.2 fixed relative to the cylinder body of the protection cylinder 502.1, an inner fixing seat 502.3 fixed to the base plate 501, an outer fixing seat 502.4 fixed to the base plate 501, an outer shaft 502.5 rotatably connected to the outer fixing seat 502.4, and a connecting rod 502.5 connected to the outer shaft 502.5. 2.6 and a rear protective block 503 for preventing the manual trolley from escaping from the base plate seat 501; the inner rotating shaft 502.2 is rotatably connected to the inner fixed seat 502.3; the cylinder rod of the protective cylinder 502.1 is hinged to one end of the connecting rod 502.6; the rear protective block 503 is fixed to the other end of the connecting rod 502.6; one end of the connecting rod 502.6, the outer rotating shaft 502.5, the other end of the connecting rod 502.6 and the front wheel locating groove 501a are arranged in sequence along the length direction of the connecting rod 502.6.

[0057] After the manual trolley is pushed into the trolley positioning mechanism, protective cylinder 502.1 activates, pushing connecting rod 502.6 to rotate along outer shaft 502.5 (simultaneously, protective cylinder 502.1 also rotates along inner shaft 502.2). This causes rear protective block 503 to rotate upward along outer shaft 502.5. Rear protective block 503 primarily prevents the manual trolley from dislodging backward from the trolley positioning mechanism (this only applies to the lowest manual trolley; rear protective block 503 does not need to compress the manual trolley). Before the manual trolley leaves the trolley positioning mechanism, protective cylinder 502.1 activates, driving rear protective block 503 back into position via connecting rod 502.6.

[0058] like Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 As shown, it also includes a lifting frame 601, a lifting motor 602 and a lifting spindle driven by the lifting motor 602. The lifting motor 602 is arranged on the lifting frame 601. The lifting mechanism includes a lifting belt 603, an upper pulley 604 rotatably connected to the lifting frame 601 and a lower pulley 605 rotatably connected to the lifting frame 601. The upper pulley 604 is coaxially fixed with the lifting spindle. In the corresponding forking mechanism 4 and the lifting mechanism: the lifting belt 603 passes around the upper pulley 604 and the lower pulley 605, the lifting belt 603 cooperates with the upper pulley 604, the lifting belt 603 cooperates with the lower pulley 605, the forking base 401 is connected to the lifting belt 603, the forking base 401 is slidably connected to the lifting frame 601, and the sliding direction of the forking base 401 is vertical.

[0059] It also includes a translation motor 701, which is arranged on the main frame 2. The translation mechanism includes a translation belt 702, a front pulley 703 rotatably connected to the main frame 2, and a rear pulley 704 rotatably connected to the main frame 2. The rear pulley 704 is driven by the translation motor 701. The translation belt 702 passes around the front pulley 703 and the rear pulley 704. The translation belt 702 cooperates with the front pulley 703, and the translation belt 702 cooperates with the rear pulley 704. The lifting frame 601 is connected to the translation belt 702, and the lifting frame 601 is slidably connected to the main frame 2. The sliding direction of the lifting frame 601 is parallel to the conveying direction of the roller conveyor line 3.

[0060] The translation motor 701 rotates, driving the rear pulley 704 to rotate, thereby rotating the translation belt 702 around the front pulley 703 and the rear pulley 704. The front pulley 703 also rotates, and the translation belt 702 drives the lifting frame 601 to translate. The lifting motor 602 rotates, driving the lifting spindle to rotate. The lifting spindle drives the upper pulley 604 to rotate, thereby rotating the lifting belt 603 around the upper pulley 604 and the lower pulley 605. The lower pulley 605 also rotates. The lifting belt 603 drives the fork base 401 to rise and fall, and in turn drives the clamping mechanism 402 and other structures on the fork base 401 to rise and fall together.

[0061] like Figure 9 As shown, the base plate seat 501 is provided with a backrest seat 504 for limiting the front end of the manual trolley and two side limit plates 505 for limiting the sides of the manual trolley. In a trolley positioning mechanism: the length direction of the side limit plate 505 is parallel to the forward direction of the manual trolley when it enters the trolley positioning mechanism, and the length direction of the side limit plate 505 is horizontal and perpendicular to the conveying direction of the roller conveyor line 3.

[0062] The backrest 504 can prevent the manual trolley from escaping from the trolley positioning mechanism forward, and the side limit plate 505 can prevent the manual trolley from escaping from the trolley positioning mechanism sideways.

[0063] like Figure 9 As shown, the trolley positioning mechanism also includes a ramp plate 506. In a trolley positioning mechanism: the ramp plate 506, the rear positioning groove 1b and the front positioning groove 1a are arranged in sequence along the forward direction when the manual trolley enters the trolley positioning mechanism, one end of the ramp plate 506 is docked with the ground, and the other end of the ramp plate 506 is docked with the vehicle plate 1.

[0064] The ramp plate 506 is more conducive to pushing the manual cart onto the base plate seat 501, which can reduce the difficulty of pushing the manual cart onto the base plate seat 501 and improve the stability of the overall structure (including the turnover boxes stacked on the manual cart, etc.) during the movement of the manual cart.

[0065] like Figure 9 、 Figure 10 As shown, the bottom plate seat 501 is provided with two guide plates 507 corresponding to the rear universal wheels 102 one by one, and the guide plates 507 include an outer guide section 507.1 and an inner limit section 507.2;

[0066] In the corresponding rear universal wheel 102 and guide plate 507: the side of the outer guide section 507.1 that contacts the rear universal wheel 102 is the outer guide outer side surface, and the side of the inner limit section 507.2 that contacts the rear universal wheel 102 is the inner limit outer side surface;

[0067] In the forward direction of the manual trolley when entering the trolley positioning mechanism: the distance between the two outer guide outer sides gradually increases;

[0068] When all rear universal wheels 102 of the manual vehicle fall into the rear wheel positioning groove 501 b , any inner limit section 507 . 2 is located between the two rear universal wheels 102 .

[0069] When the front end of the manual trolley just enters the base plate 501 of the trolley positioning mechanism, it is difficult to ensure that the direction is "straight" because it is manually controlled. In other words, it is difficult to ensure that the length direction of the manual trolley is initially parallel to the length direction of the base plate 501. The guide plate 507 can help correct the direction of the manual trolley. When the front fixed wheel 101 contacts and passes the outer guide outer side surface of the outer guide section 507.1, the front fixed wheel 101 will move along the outer guide outer side surface of the outer guide section 507.1. When the fixed wheel contacts and passes the inner limit outer side surface of the inner limit section 507.2, the manual trolley is "straight", that is, the length direction of the manual trolley is parallel to the length direction of the base plate 501. Finally, when the manual trolley is in place, the front fixed wheel 101 falls into the front wheel positioning groove 501a, the rear universal wheel 102 falls into the rear wheel positioning groove 501b, and the inner side surface (inner end surface) of the rear universal wheel 102 contacts the inner limit outer side surface of an adjacent inner limit section 507.2. The front wheel positioning grooves 501a axially limit the two end surfaces of the front fixed wheel 101 (the wheel body), while the rear wheel positioning grooves 501b axially limit the two end surfaces of the rear universal wheel 102 (the wheel body). Note: Both the front fixed wheel 101 and the rear universal wheel 102 are "side-limited" and there is no obstruction from above, so the manual vehicle can be clamped and lifted normally.

[0070] Example 2: Based on Example 1,

[0071] like Figure 12 、 Figure 13 、 Figure 14 、 Figure 15 As shown, when the foot-operated brake member 103 is in the braking position, the angle between the foot-operated plate 103.1 and the horizontal plane is 90 degrees;

[0072] The trolley positioning mechanism adjacent to the roller conveyor line 3 also includes two position-following brake structures corresponding one-to-one to the rear universal wheels 102. The position-following brake structures include a vertical shaft 508.1 rotatably connected to the base plate 501, a torsion spring 508.2 sleeved on the vertical shaft 508.1, a top wheel 508.3 located above the guide plate 507 and used to push the foot plate 103.1, and a stopper 508.4 fixed to the base plate. The stopper 508.4 is located between the two inner limit sections 507.2.

[0073] In the corresponding rear universal wheel 102 and the position-following brake structure: one end of the torsion spring 508.2 is connected to the base plate seat 501, and the other end of the torsion spring 508.2 is connected to the guide plate 507. When the rear universal wheel 102 is separated from the guide plate 507, the outer guide section 507.1 contacts the block 508.4. When the rear universal wheel 102 falls into the rear wheel positioning groove 501b, the inner side of the rear universal wheel 102 contacts the outer side surface of the inner limit, the guide section is separated from the block 508.4, and the side wall of the top wheel 508.3 is attached to the foot plate 103.1. At this time, the foot-operated brake component 103 is in the braking position.

[0074] The top wheel 508.3 is rotatably connected to the guide plate 507 via a wheel axle.

[0075] As mentioned above, whether depalletizing or unpalletizing turnover boxes or manual carts, once the manual cart is pushed onto the cart positioning mechanism (base plate 501) adjacent to the roller conveyor line 3, the foot-operated brake 103 must be braked by pressing the foot plate 103.1. However, due to manual operation, it is inevitable that the brake may be forgotten. In such cases, the manual cart may easily wobble during the depalletizing process due to contact with the clamping mechanism 402 or vibration caused by other factors. "Forgetting to brake can cause instability in the manual cart and turnover boxes during the depalletizing process, significantly increasing the risk of the turnover boxes or manual cart swaying or falling."

[0076] When one rear universal wheel 102 contacts the outer guide surface of the outer guide section 507.1, the direction of the manual vehicle can be automatically adjusted as the manual vehicle continues to advance. At a certain moment, the rear universal wheel 102 begins to enter the rear wheel positioning groove 501b, which begins to limit the two end surfaces of the rear universal wheel 102. At this time, the rear universal wheel 102 acts as a fixed wheel. The two rear universal wheels 102 (their wheel bodies) are coaxially arranged. At the same time, the rear universal wheel 102 pushes the inner limiting section 507.2 to move (the guide plate 507 rotates inward along the vertical axis 508.1 relative to each other, and the two inner limiting sections 507.2 move closer together) until the rear universal wheel 102 falls into the rear wheel positioning groove 501b (the lowest point of the rear universal wheel 102 contacts the lowest point of the bottom of the rear wheel positioning groove 501b). As mentioned above, "the rear universal wheel 102 will push the inner limit section 507.2 to move". When the rear universal wheel 102 pushes the guide plate 507 to rotate relatively inward along the vertical rotation axis 508.1, the top wheel 508.3 also rotates along the vertical rotation axis 508.1. At a certain moment, the top wheel 508.3 will push the pedal plate 103.1 to move toward the rear universal wheel 102. When the rear universal wheel 102 falls into the rear wheel positioning groove 501b, the top wheel 508.3 also pushes the pedal plate 103.1 to the limit position. At this time, the foot-operated brake member 103 is in the braking position, and the angle between the pedal plate 103.1 and the horizontal plane is 90 degrees (such as Figure 15In addition, when the guide plate 507 rotates along the vertical axis 508.1, the torsion spring 508.2 accumulates force.

[0077] In this way, automatic braking of the rear universal wheel 102 is achieved, which can avoid the aforementioned problem of "the manual cart and turnover box being unstable during the depalletizing process due to forgetting to brake, thereby greatly increasing the risk of the turnover box or manual cart shaking or falling."

[0078] The above describes the situation when the rear universal wheel 102 passes the guide plate 507. What if the front fixed wheel 101 passes the guide plate 507? In fact, the guide plate 507 will also start to rotate, but since there is no brake structure on the front fixed wheel 101, the top wheel 508.3 rotating along the vertical axis 508.1 does not play an additional role. However, the inner limit section 507.2 can play an additional role in this process, which is to prevent the manual trolley from moving forward too fast. Since multiple turnover boxes or multiple manual trolleys are stacked on the bottom manual trolley, the overall stability needs to be guaranteed. Once the manual cart at the bottom moves forward too fast, it is easy to shake too much when it slows down or touches other structures, causing multiple turnover boxes or multiple manual carts stacked on it to shake or even fall (after the manual cart passes the ramp plate 506 and begins to enter the base plate seat 501, the manual cart will have a slight tilt process. If the speed is too fast at this time, it is more likely to shake. If the manual cart is always slow, it will obviously lead to too low efficiency, which is also undesirable. In short, the manual cart is pushed by workers, and there is no guarantee that the pushing speed is reasonable each time).

[0079] When the guide plate 507 rotates along the vertical axis 508.1, the torsion spring 508.2 can store force. Regardless of whether the front fixed wheel 101 leaves the guide plate 507 or the rear universal wheel 102 leaves the guide plate 507, the guide plate 507 can be reset under the action of the torsion spring 508.2.

[0080] The embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core ideas. At the same time, for those skilled in the art, according to the ideas of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A floor-standing depalletizing device can be used to depalletize turnover boxes stacked on a manual trolley. The manual trolley includes a vehicle deck, two front fixed wheels, and two rear universal wheels. The vehicle deck is provided with two front positioning grooves and two rear positioning grooves. The rear universal wheels are provided with universal wheel brakes. The universal wheel brakes include foot-operated brake components, which include foot-operated plates and friction covers for clamping on the rear universal wheels. The device is characterized in that: The system comprises a main frame, a transplanting mechanism, a roller conveyor line, and two trolley positioning mechanisms provided on the ground for positioning a manual trolley. The two trolley positioning mechanisms and the roller conveyor line are arranged in sequence along the conveying direction of the roller conveyor line. The transplanting mechanism comprises two symmetrically arranged fork-picking mechanisms, two lifting mechanisms corresponding to the fork-picking mechanisms, and a translation mechanism for driving the lifting mechanisms to translate together. The forking mechanism includes a forking base, a clamping plate mechanism provided on the forking base and used for contacting the turnover box, and a forking cylinder for driving the clamping plate mechanism to move. In the corresponding forking mechanism and lifting mechanism: the forking mechanism can be driven to rise and fall by the lifting mechanism; The trolley positioning mechanism includes a base plate, and in one trolley positioning mechanism: the base plate is provided with two front wheel positioning grooves and two rear wheel positioning grooves; Wherein, the trolley positioning mechanism is provided with a protection mechanism, in one trolley positioning mechanism: the protection mechanism includes a protection cylinder, an inner rotating shaft fixed relatively to the cylinder body of the protection cylinder, an inner fixed seat fixed to the base plate seat, an outer fixed seat fixed to the base plate seat, an outer rotating shaft rotatably connected to the outer fixed seat, a connecting rod connected to the outer rotating shaft, and a rear protection block for preventing the manual trolley from separating from the base plate seat, the inner rotating shaft is rotatably connected to the inner fixed seat, the cylinder rod of the protection cylinder is hinged to one end of the connecting rod, and the rear protection block is fixed to the other end of the connecting rod; The trolley positioning mechanism also includes a ramp plate. In a trolley positioning mechanism, the ramp plate, the rear positioning groove and the front positioning groove are arranged in sequence along the forward direction of the manual trolley when entering the trolley positioning mechanism. One end of the ramp plate is connected to the ground, and the other end of the ramp plate is connected to the vehicle plate.

2. A floor-standing palletizing device according to claim 1, characterized in that: The clamping mechanism includes a base plate and two pressure plates, the pressure plates are provided with a plurality of sliding rods slidably connected to the base plates, and on one pressure plate: a pressure spring is provided on the pressure plate, one end of the pressure spring is connected to the pressure plate, and the other end of the pressure spring is connected to the base plate.

3. A floor-standing palletizing device according to claim 1 or 2, characterized in that: It also includes a lifting frame, a lifting motor and a lifting spindle driven by the lifting motor. The lifting mechanism includes a lifting belt, an upper pulley rotatably connected to the lifting frame and a lower pulley rotatably connected to the lifting frame. The upper pulley is coaxially fixed to the lifting spindle. In the corresponding fork mechanism and lifting mechanism: the lifting belt passes around the upper pulley and the lower pulley, the lifting belt cooperates with the upper pulley, the lifting belt cooperates with the lower pulley, the fork base is connected to the lifting belt, and the fork base is slidably connected to the lifting frame.

4. A floor-standing palletizing and depalletizing device according to claim 3, characterized in that: It also includes a translation motor, and the translation mechanism includes a translation belt, a front pulley rotatably connected to the main frame, and a rear pulley rotatably connected to the main frame. The rear pulley is driven by the translation motor, and the translation belt passes around the front pulley and the rear pulley. The translation belt cooperates with the front pulley, and the translation belt cooperates with the rear pulley. The lifting frame is connected to the translation belt, and the lifting frame is slidably connected to the main frame.

5. A floor-standing palletizing device according to claim 1 or 2, characterized in that: The base seat is provided with a backrest seat for limiting the front end of the manual trolley and two side limit plates for limiting the sides of the manual trolley. In a trolley positioning mechanism: the length direction of the side limit plate is parallel to the forward direction of the manual trolley when it enters the trolley positioning mechanism.

6. A floor-standing palletizing and depalletizing device according to claim 1 or 2, characterized in that: The bottom plate is provided with two guide plates corresponding to the rear universal wheels one by one, and the guide plates include an outer guide section and an inner limit section; In the corresponding rear universal wheel and guide plate: the side of the outer guide segment that contacts the rear universal wheel is the outer guide outer side surface, and the side of the inner limit segment that contacts the rear universal wheel is the inner limit outer side surface; In the forward direction of the manual trolley when entering the trolley positioning mechanism: the distance between the two outer guide outer sides gradually increases; When all rear universal wheels of the manual trolley fall into the rear wheel positioning grooves: any inner limit section is located between the two rear universal wheels.

7. A floor-standing palletizing and depalletizing device according to claim 6, characterized in that: When the foot-operated brake is in the braking position, the angle between the foot pedal and the horizontal plane is 90 degrees; In the trolley positioning mechanism adjacent to the roller conveyor line: it also includes two position-following brake structures corresponding one to one with the rear universal wheels, the position-following brake structure includes a vertical shaft rotatably connected to the base plate, a torsion spring sleeved on the vertical shaft, a top wheel provided above the guide plate and used to push the foot plate, and a stopper fixed to the base plate, the stopper being located between the two inner limit sections; In the corresponding rear universal wheel and position-following brake structure: one end of the torsion spring is connected to the base plate seat, and the other end of the torsion spring is connected to the guide plate. When the rear universal wheel is separated from the guide plate, the outer guide section contacts the block. When the rear universal wheel falls into the rear wheel positioning groove, the inner side of the rear universal wheel contacts the outer side surface of the inner limit, the guide section is separated from the block, and the side wall of the top wheel is attached to the foot pedal. At this time, the foot-operated brake component is in the braking position.

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