Floor type unstacking and stacking device

Abstract

The invention discloses a floor type stacking and unstacking device which can enable a manual trolley to be in place and positioned, can carry out stacking and unstacking operation on a plurality of stacked turnover boxes on the manual trolley after the manual trolley is in place and positioned, is variable in single stacking and unstacking number, good in flexibility and high in adaptability, and can carry out stacking and unstacking operation after the stacking and unstacking operation on the plurality of stacked turnover boxes is completed. In addition, unstacking and stacking operation can be carried out on the multiple stacked manual trolleys, the operation process is simple, convenient and efficient, and the labor intensity of workers can be greatly reduced. The main structure of the transplanting device comprises a main rack, a transplanting mechanism, a roller conveying line and two trolley positioning mechanisms, wherein the transplanting mechanism comprises two forking mechanisms, two lifting mechanisms and a translation mechanism; the forking mechanism comprises a forking base, a clamping plate mechanism and a forking air cylinder, the forking mechanism can be driven by the lifting mechanism to ascend and descend, the trolley positioning mechanism comprises a bottom plate seat, and two front wheel positioning grooves and two rear wheel positioning grooves are formed in the bottom plate seat.

Description

Technical Field

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

[0002] During the production and transportation of electric energy meters, turnover boxes and manual carts are used. Among them, the turnover box can be used to accommodate multiple electric energy meters, and multiple turnover boxes can be stacked from bottom to top; multiple stacked turnover boxes can be placed on the manual cart, so that the movement and transportation of multiple turnover boxes on it can be achieved through the movement of the manual cart. In the prior art, the main structure of the manual cart includes a car plate, two front fixed wheels and two rear universal wheels. The rear universal wheels are equipped with universal wheel brakes, and the movement of the manual cart can be achieved by pushing by workers. Summary of the invention

[0003] The present invention provides 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 landed and positioned manual trolley, and the number of single depalletizing is variable, with good flexibility and strong adaptability. After the depalletizing operation of multiple stacked turnover boxes is completed, the empty manual trolley can be automatically transferred away. In addition, the depalletizing operation 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 plate, two front fixed wheels and two rear universal wheels. The vehicle plate 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 parts. The foot-operated brake parts include foot-operated 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 arranged on the ground and used to position a manual trolley, one trolley positioning mechanism, another trolley positioning mechanism and the roller conveyor line are arranged in sequence along the conveying direction of the roller conveyor line, and the transplanting mechanism includes two symmetrically arranged fork-picking mechanisms, two lifting mechanisms corresponding to the fork-picking mechanisms one by one and a translation mechanism used to drive each lifting mechanism to translate together;

[0007] The forking mechanism includes a forking base, a clamping plate mechanism disposed on the forking base and used to contact the turnover box, and a forking cylinder used to drive 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 comprises a bottom plate seat. In one trolley positioning mechanism: two front wheel positioning grooves and two rear wheel positioning grooves are arranged on the bottom plate seat.

[0009] Preferably, the clamping mechanism includes a base plate and two pressure plates, on which a plurality of sliding rods slidably connected to the base plate are provided, and on one of the pressure plates: 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.

[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 leaving 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, and 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, 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 connected to the ground, and the other end of the ramp plate is connected to the vehicle plate.

[0015] Preferably, the bottom plate seat 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 surface of the outer guide section used for contacting the rear universal wheel is the outer guide outer side surface, and the side surface of the inner limit section used for contacting the rear universal wheel is the inner limit outer side surface;

[0017] In the forward direction of the manual trolley when it enters 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: it also includes two on-position braking structures corresponding to the rear universal wheels one by one, the on-position braking structure includes a vertical rotating shaft rotatably connected to the bottom plate seat, a torsion spring sleeved on the vertical rotating shaft, a top wheel arranged above the guide plate and used to push the foot pedal, and a stopper fixed to the base plate, the stopper is located between the two inner limit sections;

[0021] In the corresponding rear universal wheel and follow-up 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 separates from the block, and the side wall of the top wheel is attached to the foot plate. At this time, the foot-operated brake component is in the braking position.

[0022] The beneficial effects of the present invention are: the manual trolley can be placed and positioned, and multiple stacked turnover boxes on the placed and positioned manual trolley can be depalletized and stacked, and the number of single depalletizing and stacking can be variable, with good flexibility and strong adaptability. After the depalletizing and stacking operations of multiple stacked turnover boxes are completed, the empty manual trolley can be automatically transferred away. In addition, multiple stacked manual trolleys can be depalletized and stacked. 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 and stacking process due to forgetting to brake, thereby greatly increasing the risk of the turnover box or manual trolley shaking and falling". BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic 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 schematic diagram of the lifting frame of the present invention;

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

[0027] Figure 5 yes Figure 1 The 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 The enlarged view of point D in the middle;

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

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

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

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

[0034] Fig.12 is a schematic structural diagram of the universal rear wheel in Embodiment 2 of the present invention;

[0035] Fig.13 is a schematic structural diagram of the guide plate in one state in Embodiment 2 of the present invention;

[0036] Fig.14 It is a partial structural schematic diagram of embodiment 2 of the present invention;

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

[0038] Figure numerals: vehicle plate 1, front positioning groove 1a, rear positioning groove 1b, front fixed wheel 101, rear universal wheel 102, foot-operated brake member 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 seat 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, outer guide section 507.1, inner 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 be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0040] Embodiment 1:

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.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 104. The wheel frame of the rear universal wheel 102 is rotatably connected to the brake shaft 104, and the foot-operated brake member 103 includes a foot-operated sheet 103.1 and a friction cover 103.2 for clamping on the rear universal wheel 102. The foot-operated sheet 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 frictionally self-locking, and the height of the highest point of the foot-operated sheet 103.1 is lower than the height of the lowest point of the brake shaft 104;

[0043] When the foot-operated brake member 103 is in the braking position: a part of the two end surfaces of the wheel body of the rear universal wheel 102 is pressed against the friction cover 103.2, a part of the circumferential surface of the wheel body of the rear universal wheel 102 is pressed against the friction cover 103.2, and the angle between the foot-operated 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 advancing direction of the manual trolley when entering the trolley positioning mechanism;

[0045] It includes a main frame 2, a transplanting mechanism, a roller conveyor line 3 and two trolley positioning mechanisms arranged on the ground and used to position 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-taking mechanisms 4, two lifting mechanisms corresponding to the fork-taking mechanisms 4 one by one, and a translation mechanism used to drive 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 disposed on the forking base 401 and used to contact the turnover box, and a forking cylinder 403 used to drive 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 disposed on the forking base 401;

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

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

[0049] A plurality of turnover boxes 8 are stacked on the manual trolley. The worker can push the manual trolley forward together with the turnover boxes on it, so that the manual trolley enters the trolley positioning mechanism adjacent to the roller conveyor line 3. The front fixed wheel 101 (the wheel body) will pass through the rear wheel positioning groove 501b and eventually fall into the front wheel positioning groove 501a, and the rear universal wheel 102 (the wheel body) will enter and eventually fall into the rear wheel positioning groove 501b. Subsequently, the worker can step on the foot-operated plate 103.1 of the foot-operated brake member 103, thereby driving the friction cover 103.2 to rotate along the brake shaft 104 and eventually cover and get stuck on the rear universal wheel 102 (the wheel body). Explanation: The universal wheel brake belongs to the prior art, and the foot-operated plate 103.1, the friction cover 103.2, etc. here are all structures of the universal wheel brake in the prior art, and the roller conveyor line also belongs to the prior art.

[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 mechanisms 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 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 drives the clamping plate mechanism 402 to rise, and the translation mechanism drives the lifting mechanism and the clamping plate mechanism 402 to translate to the top of the roller conveyor line 3. Then the lifting mechanism drives the clamping plate mechanism 402 to descend, so that the "clamped turnover box" and the turnover boxes stacked on it fall onto the roller conveyor line 3 (the bottom of the "clamped turnover box" contacts the roller conveyor line 3), and then the fork cylinder 403 drives the clamping plate mechanism 402 to move, release the turnover box, and complete a depalletizing operation. The roller conveyor line 3 can then convey the turnover box to the subsequent workstation.

[0051] When all the stacked turnover boxes 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 car"), and then the lifting mechanism drives the two fork-picking mechanisms 4 (clamping plate mechanism 402) to move to both sides of the "depalletizing empty car", and the fork-picking cylinder 403 drives the clamping plate mechanism 402 to move, and the clamping plate mechanism 402 clamps the "depalletizing empty car", and then the lifting mechanism drives the clamping plate mechanism 402 to rise, and the translation mechanism drives the lifting mechanism and the clamping plate mechanism 402 to move horizontally together to a place 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 the manual carts are stacked, for the two adjacent manual carts, the front fixed wheel 101 of the upper manual cart will fall into the front positioning groove 1a of the lower manual cart, and the rear universal wheel 102 of the rear manual cart will fall into the rear positioning groove 1b of the lower manual cart. When a certain number of manual carts on the cart positioning mechanism far away from the roller conveyor line 3 are stacked, the worker can push it away (before pushing it away, the worker first releases the universal wheel brake of the lowest manual cart).

[0053] Similarly, when it is necessary to perform depalletizing operation on the stacked manual carts, the stacked manual carts are pushed into the cart positioning mechanism adjacent to the roller conveyor line 3, and then the worker can step on the foot plate 103.1 of the foot-operated brake member 103 on the lowest manual cart, thereby driving the friction cover 103.2 to rotate along the brake shaft 104 and finally cover and clamp on the rear universal wheel 102 (wheel body). In the subsequent depalletizing process, the action process principle of each structure is consistent with the action process principle of depalletizing operation on the turnover box, which will not be repeated here. The only difference is that when depalletizing the stacked turnover box, the lowest manual cart will not be clamped, while when depalletizing the stacked manual cart, the lowest manual cart can also 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 plates 402.2 are provided with a plurality of slide bars 402.3 which are slidably connected to the base plate 402.1. The sliding direction of the slide bars 402.3 is parallel to the extension and retraction direction of the cylinder rod of the fork cylinder 403. The extension and retraction 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, the two base plates 402.1 are relatively close to each other, the two pressure plates 402.2 are relatively close to each other, and 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, which realizes the clamping of the turnover box (when the pressure plate 402.2 in the clamping plate mechanism 402 moves relative to the base plate 402.1, the slide bar 402.3 can play a guiding role). When resetting, each forking cylinder 403 drives each base plate 402.1 to move, the two base plates 402.1 are relatively far away from each other, and the two pressure plates 402.2 are relatively far away from each other. During the process, under the action of the pressure spring 402.4, the pressure plate 402.2 in the clamping plate mechanism 402 will also move relative to the base plate 402.1, and finally the resetting of the relevant structures can be realized.

[0056] like Fig.10 , Fig.11 As shown, the trolley positioning mechanism is provided with a protection mechanism. In a trolley positioning mechanism, the protection mechanism includes a protection cylinder 502.1, an inner shaft 502.2 fixed relatively to the cylinder body of the protection cylinder 502.1, an inner fixed seat 502.3 fixed to the base plate seat 501, an outer fixed seat 502.4 fixed to the base plate seat 501, an outer shaft 502.5 rotatably connected to the outer fixed seat 502.4, and a connecting rod 502.5 connected to the outer shaft 502.5. 2.6 and a rear protection 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 protection cylinder 502.1 is hinged to one end of the connecting rod 502.6, the rear protection 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, the protective cylinder 502.1 works, pushing the connecting rod 502.6 to rotate along the outer shaft 502.5 (at the same time, the protective cylinder 502.1 will also rotate along the inner shaft 502.2), so that the rear protective block 503 will also rotate upward along the outer shaft 502.5. The rear protective block 503 mainly prevents the manual trolley from escaping from the trolley positioning mechanism backward (only effective for the manual trolley at the bottom, and the rear protective block 503 does not need to press the manual trolley). Before the manual trolley leaves the trolley positioning mechanism, the protective cylinder 502.1 works, driving the rear protective block 503 to reset through the 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 fork 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 works, driving the rear pulley 704 to rotate, so that the translation belt 702 rotates 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, so that the lifting belt 603 rotates 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 drives the clamping plate mechanism 402 and other structures on the fork base 401 to rise and fall together.

[0061] like Fig. 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 limiting plates 505 for limiting the sides of the manual trolley. In a trolley positioning mechanism: the length direction of the side limiting 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 limiting 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 Fig. 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 connected to the ground, and the other end of the ramp plate 506 is connected to the vehicle plate 1.

[0064] The ramp plate 506 is more conducive to pushing the manual cart onto the bottom plate seat 501, which can reduce the difficulty of pushing the manual cart onto the bottom 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 Fig. 9 , Fig.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 surface of the outer guide section 507.1 used for contacting the rear universal wheel 102 is the outer guide outer side surface, and the side surface of the inner limit section 507.2 used for contacting the rear universal wheel 102 is the inner limit outer side surface;

[0067] In the forward direction of the manual trolley when it enters 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 bottom plate seat 501 of the trolley positioning mechanism, it is difficult to ensure that the direction is very "straight" because it is controlled by humans, that is, it is difficult to ensure that the length direction of the manual trolley is parallel to the length direction of the bottom plate seat 501 from the beginning. The guide plate 507 can assist in correcting the direction of the manual trolley. When the front directional wheel 101 contacts and passes through the outer guide outer side surface of the outer guide section 507.1, the front directional wheel 101 will move along the outer guide outer side surface of the outer guide section 507.1. When the directional wheel contacts and passes through the inner limit outer side surface of the inner limit section 507.2, the manual trolley is already "straight", that is, the length direction of the manual trolley is parallel to the length direction of the bottom plate seat 501. Finally, when the manual trolley is in place, the front directional 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 groove 501a can axially limit the two end surfaces of the front fixed wheel 101 (the wheel body), and the rear wheel positioning groove 501b can 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 above, so the manual trolley can be clamped and lifted normally.

[0070] Example 2: Based on Example 1,

[0071] like Fig.12 , Fig.13 , Fig.14 , Fig.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] In the trolley positioning mechanism adjacent to the roller conveyor line 3: it also includes two on-position braking structures corresponding to the rear universal wheels 102 one by one, the on-position braking structure includes 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 disposed above the guide plate 507 and used to push the pedal plate 103.1, and a stopper 508.4 fixed to the base plate, and the stopper 508.4 is located between the two inner limit sections 507.2;

[0073] In the corresponding rear universal wheel 102 and the follow-up 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 stopper 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 stopper 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 it is for depalletizing or stacking of turnover boxes or manual carts, when the manual cart is pushed onto the cart positioning mechanism (bottom plate seat 501) adjacent to the roller conveyor line 3, it is necessary to step on the foot plate 103.1 of the foot-operated brake member 103 to complete the braking. However, due to manual operation, it is inevitable that the brake will be forgotten. At this time, during the depalletizing process, the manual cart is prone to shaking due to the contact of the clamping mechanism 402 and the vibration caused by other factors. "Forgetting to brake will cause the manual cart and turnover box to be unstable during the depalletizing process, so the risk of the turnover box or manual cart shaking and falling is greatly increased."

[0076] When a rear universal wheel 102 contacts the outer guide outer side surface of the outer guide section 507.1, the forward direction of the artificial trolley can be automatically adjusted as the artificial trolley continues to move forward. At a certain moment, the rear universal wheel 102 begins to enter the rear wheel positioning groove 501b, and the rear wheel positioning groove 501b will begin to limit the two end surfaces of the rear universal wheel 102, so at this time the role of the rear universal wheel 102 is equivalent to a directional wheel, and the two rear universal wheels 102 (wheel bodies) are coaxially arranged. At the same time, the rear universal wheel 102 will push the inner limit section 507.2 to move (the guide plate 507 rotates relatively inward along the vertical axis 508.1, and the two inner limit sections 507.2 move closer), 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 Fig.15In addition, when the guide plate 507 rotates along the vertical rotation axis 508.1, the torsion spring 508.2 will accumulate 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 through the ramp 506 and begins to enter the bottom 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 rotation 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, under the action of the torsion spring 508.2, the guide plate 507 can be reset.

[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 idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on 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 plate, two front fixed wheels and two rear universal wheels. The vehicle plate 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 parts. The foot-operated brake parts include foot-operated plates and friction covers for clamping on the rear universal wheels. The characteristics are: It includes a main frame, a transplanting mechanism, a roller conveyor line and two trolley positioning mechanisms arranged on the ground and used to position a manual trolley, one trolley positioning mechanism, another trolley positioning mechanism and the roller conveyor line are arranged in sequence along the conveying direction of the roller conveyor line, and the transplanting mechanism includes two symmetrically arranged fork-picking mechanisms, two lifting mechanisms corresponding to the fork-picking mechanisms one by one and a translation mechanism used to drive each lifting mechanism to translate together; The forking mechanism includes a forking base, a clamping plate mechanism disposed on the forking base and used to contact the turnover box, and a forking cylinder used to drive 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 comprises a bottom plate seat. In one trolley positioning mechanism: two front wheel positioning grooves and two rear wheel positioning grooves are arranged on the bottom plate seat.

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

3. A floor-standing palletizing and unpalletizing device according to claim 1, characterized in that: The trolley positioning mechanism is provided with a protection mechanism. In a 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 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.

4. A floor-standing palletizing and unpalletizing device according to claim 1, 2 or 3, 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.

5. A floor-standing palletizing and unpalletizing device according to claim 5, characterized in that: It also includes a translation motor, 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, 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.

6. A floor-standing palletizing and unpalletizing device according to claim 1, 2 or 3, 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 plates is parallel to the forward direction of the manual trolley when it enters the trolley positioning mechanism.

7. A floor-standing palletizing and unpalletizing device according to claim 1, 2 or 3, characterized in that: 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.

8. A floor-standing palletizing and unpalletizing device according to claim 1, 2 or 3, characterized in that: The bottom plate seat 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 surface of the outer guide section used for contacting the rear universal wheel is the outer guide outer side surface, and the side surface of the inner limit section used for contacting the rear universal wheel is the inner limit outer side surface; In the forward direction of the manual trolley when it enters 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.

9. A floor-standing palletizing and unpalletizing device according to claim 8, characterized in that: 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; In the trolley positioning mechanism adjacent to the roller conveyor line: it also includes two on-position braking structures corresponding to the rear universal wheels one by one, the on-position braking structure includes a vertical rotating shaft rotatably connected to the bottom plate seat, a torsion spring sleeved on the vertical rotating shaft, a top wheel arranged above the guide plate and used to push the foot pedal, and a stopper fixed to the base plate, the stopper is located between the two inner limit sections; In the corresponding rear universal wheel and follow-up 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 separates from the block, and the side wall of the top wheel is attached to the foot plate. At this time, the foot-operated brake component is in the braking position.

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