Wooden tray transfer device

Abstract

The invention discloses a wooden tray transfer device, and belongs to the technical field of automatic carrying equipment. The device comprises a mounting mechanism and a transferring mechanism; the installation mechanism comprises an installation support, a sky rail and a ground rail, wherein the sky rail and the ground rail are distributed up and down. The transfer mechanism comprises a guide wheel assembly, a lifting assembly and a vehicle body assembly which are sequentially connected from top to bottom; the guide wheel assembly comprises a guide wheel seat, a first mounting plate and a second mounting plate are arranged on the guide wheel seat, and the first mounting plate is rotationally arranged on the guide wheel seat through a pin shaft; a pair of first guide wheels is arranged on the first mounting plate, and a second guide wheel is arranged on the second mounting plate. Through mutual cooperation of the guide wheel assembly, the lifting assembly, the vehicle body assembly and the clamping jaw assembly, automatic transfer operation of trays can be achieved; and meanwhile, the first mounting plate provided with the first guide wheel can rotate around the pin shaft, so that the first guide wheel has a certain linear guide automatic adjusting function.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automated handling equipment, and more particularly relates to a wooden pallet transfer device. BACKGROUND

[0002] In order to facilitate the loading and unloading operation of workpieces, a transfer pallet is usually used to carry workpieces during transportation. In particular, for some large workpieces, such as coiled materials, wooden pallets are usually used for carrying.

[0003] Currently, for the transfer and destacking of some wooden pallets, forklift transfer is mainly used. Although forklift operation can effectively reduce labor input and improve basic efficiency, it still belongs to a semi-automatic operation mode in essence. Under the background of continuously accelerating production rhythm, it is difficult to meet the production demand of higher efficiency. Therefore, it is of important production practical significance to design a device that can automatically complete the pallet transfer operation to further improve the work efficiency.

[0004] According to the search, in the patent CN117533797A, a wooden pallet stacking device is disclosed. The application includes a first conveying belt and a second conveying belt, the load surface of the second conveying belt is higher than that of the first conveying belt, and further includes a lifting device, a supporting member and a pushing device. The lifting device is used to move the wooden pallet from the first position to the second position, the first position is located at the tail end of the conveying track of the first conveying belt, and the second position is located directly above the first position; the supporting member is used to support the wooden pallet at the second position, and the pushing device is used to push the wooden pallet from the second position to the third position, the third position is located at the starting point of the conveying track of the second conveying belt; the wooden pallet is transferred from the first position to the second position for stacking, and after the stacking is completed, it is transferred to the third position by the pushing device. In the process of transferring the wooden pallet from the first conveying belt to the second conveying belt, the stacking of the wooden pallet is completed at the same time, thereby improving the transportation and loading efficiency of the wooden pallet.

[0005] For example, in the patent CN222249164U, a wooden pallet destacking device is disclosed. The application includes a support frame vertically fixedly arranged and having a lifting position in the middle; a lifting frame arranged in the support frame and reciprocally sliding up and down in the lifting position through a lifting mechanism on the support frame; and a distribution frame horizontally slidingly arranged below the lifting frame. The bottom of the distribution frame is provided with a pair of horizontally opposite or oppositely sliding clamping jaws for clamping and transferring a single wooden pallet from a wooden pallet stack. In the application, the wooden pallet stack is located in the middle of the support frame, the fixed frame body of the distribution frame has an L-shaped structure, and the rotating frame body is located above the wooden pallet stack. By lowering the lifting frame, the uppermost wooden pallet of the wooden pallet stack is clamped between the pair of clamping jaws, and the limiting hoops on both sides intervene and adjust the width direction of the wooden pallet, so that the wooden pallet is pushed into the preset position, thereby improving the reliability of the clamping of the clamping jaws.

[0006] The above-mentioned applications all relate to technical improvements of tray automatic transfer devices, and can effectively improve work efficiency. However, the industry still needs more diverse designs to realize automatic tray transfer operation while effectively ensuring the stability of device operation to further improve work efficiency. SUMMARY

[0007] Problems to be solved In view of at least some problems existing in the prior art, the present application provides a wooden tray transfer device, which aims to realize automatic tray transfer operation while improving the stability of the entire device to further improve work efficiency.

[0008] Technical scheme In order to solve the above-mentioned problems, the technical scheme adopted by the present application is as follows: The wooden tray transfer device of the present application comprises a mounting mechanism, The mounting mechanism comprises a mounting bracket, and an overhead rail and a ground rail arranged in an up-down manner; the extension direction of the ground rail is sequentially provided with a first station A1 and a plurality of second stations A2; and a transfer mechanism, The transfer mechanism comprises a guide wheel assembly, a lifting assembly and a vehicle body assembly connected in sequence from top to bottom; wherein, The vehicle body assembly is slidingly arranged on the ground rail and is used to drive the entire lifting assembly to switch between the first station A1 and the second station A2; The lifting assembly is provided with a jaw assembly for clamping and releasing the wooden tray, and the lifting assembly can drive the jaw assembly to move up and down; The guide wheel assembly comprises a guide wheel seat, the guide wheel seat is provided with a first mounting plate and a second mounting plate, the first mounting plate is rotatably arranged on the guide wheel seat through a pin shaft; The first mounting plate is provided with a pair of first guide wheels, and the second mounting plate is provided with a second guide wheel; the second guide wheel and the two first guide wheels form a clamping space for the overhead rail to pass through.

[0009] In some embodiments, the second guide wheel is connected with an adjusting sleeve through an adjusting shaft, the adjusting sleeve is connected with a rotating plate, and the rotating plate is connected with the second mounting plate through a waist-shaped hole thereon; When the rotating plate rotates around the waist-shaped hole, the position of the second guide wheel can be changed through the adjusting sleeve to adjust the width of the clamping space.

[0010] In some embodiments, the lifting assembly comprises a main beam arranged on the vehicle body assembly, and a connecting plate is slidingly arranged on the main beam; The connecting plate is in U-shaped structure as a whole, and the inner sides of the two side walls are each provided with a roller bearing; the main beam is provided with a clamping groove on the two sides for clamping and sliding of the roller bearing. The connecting plate is connected with the lifting motor through a chain wheel unit.

[0011] In some embodiments, limit blocks are arranged at the two ends of the clamping groove on the main beam, for preventing the connecting plate from being separated from the clamping groove. The main beam is provided with two first proximity switches arranged in an up-down manner within the extension area of the clamping groove.

[0012] In some embodiments, the vehicle body assembly comprises a vehicle frame, and the bottom of the vehicle frame is provided with a driving wheel and a third guide wheel; wherein, The driving wheel is connected with a driving motor, and the third guide wheels are arranged in pairs and located on the two sides of the ground rail respectively, and the spacing between the two third guide wheels arranged in pairs is adjustable.

[0013] In some embodiments, the vehicle frame is provided with a bumper, a second proximity switch and a laser range finder; wherein, The ground rail is provided with a stop block for stopping the bumper, the second proximity switch performs the in-place detection function of the vehicle frame through the stop block, and the sensing distance between the second proximity switch and the stop block is less than the contact distance between the bumper and the stop block; The end of the ground rail is provided with a sensing block matched with the laser range finder, for controlling the movement position of the vehicle body assembly.

[0014] In some embodiments, the driving wheel and the third guide wheel are provided with a pair of clamping plates arranged in pairs; wherein, The spacing between the two clamping plates arranged in pairs is greater than the spacing between the two third guide wheels arranged in pairs; and the lower end of the clamping plate is lower than the lower end of the third guide wheel.

[0015] In some embodiments, the clamping jaw assembly comprises a mounting seat, and the mounting seat is connected with the connecting plate through an extension plate; The mounting seat is provided with a pair of horizontal movement air cylinders facing opposite directions, the output ends of the horizontal movement air cylinders are each connected with a clamping jaw through a transition plate, and the two transition plates are connected through a synchronization unit; The synchronization unit comprises a gear seat and a gear arranged in the gear seat, the opposite sides of the gear are each engaged with a rack, and the end portions of the racks extend out of the gear seat and are connected with the corresponding transition plates.

[0016] In some embodiments, the gear seat is arranged on the extension plate through a guide unit, and the two sides of the gear seat are each provided with a centering air cylinder, for centering arrangement of the two clamping jaws.

[0017] In some embodiments, the extension plate is further provided with a detection plate and / or a diffuse reflection sensor; wherein, The detection plate is located in the clamping area surrounded by the two clamping jaws, is used for positioning the downward stroke of the clamping jaw assembly, and is connected with the lifting cylinder. The diffuse reflection sensor is located outside the clamping area and has a radiation direction towards the clamping area, and is used for detecting whether there is a tray in the clamping area.

[0018] Advantages Compared with the prior art, the present application has the following advantages: (1) The wood tray transfer device can realize automatic transfer operation of the tray through the cooperation of the guide wheel assembly, the lifting assembly, the vehicle body assembly and the clamping jaw assembly. Meanwhile, the structure of the overhead rail and the ground rail is adopted, the top of the main beam is connected with the overhead rail through the guide wheel assembly, the bottom of the main beam is matched with the ground rail through the vehicle body assembly, the eccentric load setting of the clamping jaw assembly can be adapted to ensure the stability of the lifting assembly. In addition, the first mounting plate provided with the first guide wheel can rotate around the pin shaft, so that the first guide wheel has a certain straight-line guiding automatic adjustment function, which can ensure the smoothness of the guide wheel assembly in the sliding process and also ensure the stability of the lifting assembly.

[0019] (2) The wood tray transfer device, when the rotating plate rotates around the waist-shaped hole, the position of the second guide wheel can be changed through the adjusting sleeve to adjust the width of the clamping space, so that the assembly operation of the track with different size specifications can be adapted.

[0020] (3) The wood tray transfer device, the inner sides of the two side walls of the connecting plate are provided with roller bearings, and the main beam is provided with clamping grooves for clamping and sliding of the roller bearings. Compared with the traditional linear module, this structure can bear higher radial and axial loads, so that the eccentric setting of the clamping jaw assembly can be better adapted to ensure the stability of the clamping jaw assembly during the upward and downward movement, which is conducive to ensuring the work efficiency.

[0021] (4) The wood tray transfer device is provided with a bumper and a second proximity switch on the vehicle frame, and the sensing distance between the second proximity switch and the stop block is less than the contact distance between the bumper and the stop block, so that double protection of the vehicle frame can be realized.

[0022] (5) The wood tray transfer device is provided with a pair of clamps between the driving wheel and the third guide wheel; wherein the distance between the two clamps arranged in pairs is greater than the distance between the two third guide wheels arranged in pairs; and the lower end of the clamp is lower than the lower end of the third guide wheel. This design can effectively prevent the vehicle body assembly from falling off the ground rail without affecting the normal movement of the vehicle body assembly, so as to ensure the stability of the vehicle body assembly. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 Figure is a schematic view of the structure of a wood pallet transfer device of the present application; Figure 2 Figure is a schematic view of the installation of the ground rail in the present application; Figure 3 Figure is a schematic view of the structure of the guide wheel assembly in the present application; Figure 4 Figure is a schematic view of the assembly of the second guide wheel in the present application; Figure 5 Figure is a schematic view of the structure of the lifting assembly in the present application; Figure 6 Figure is a schematic view of the assembly of the connecting plate in the present application; Figure 7 Figure is a schematic view of the structure of the vehicle body assembly in the present application; Figure 8 Figure is a schematic view of the structure of the vehicle body assembly in the present application from another perspective; Figure 9 Figure is a schematic view of the structure of the clamping jaw assembly in the present application; Figure 10 Figure is a schematic view of the structure of the synchronization unit in the present application; Figure 11 Figure is a schematic view of the internal structure of the synchronization unit in the present application; Figure 12 Figure is a schematic view of the structure of the placement assembly in the present application; Figure 13 Figure is a schematic view of the assembly between the sliding block and the positioning pin in the present application.

[0024] In the figure: 100, mounting mechanism; 110, mounting bracket; 120, ground rail; 130, overhead rail; 140, rail presser; 150, stop block; 160, sensing block; 200, transfer mechanism; 210, guide wheel assembly; 211, guide wheel seat; 212, first mounting plate; 213, second mounting plate; 214, first guide wheel; 215, second guide wheel; 216, adjustment shaft; 217, adjustment sleeve; 218, rotating plate; 2181, waist-shaped hole; 220, lifting assembly; 221, main beam; 222, connecting plate; 223, roller bearing; 224, clamping groove; 225, chain wheel unit; 226, lifting motor; 227, limiting block; 228, first proximity switch; 230, vehicle body assembly; 231, frame; 232, drive wheel; 233, third guide wheel; 234, traveling motor; 235, buffer; 236, second proximity switch; 237, laser range finder; 238, clamping plate; 240, clamping jaw assembly; 241, mounting seat; 242, extension plate; 243, transverse movement cylinder; 244, transition plate; 245, clamping jaw; 246, synchronization unit; 2461, gear seat; 2462, gear; 2463, rack; 2464, guide unit; 2465, centering cylinder; 247, detection plate; 248, diffuse reflection sensor; 300, placing assembly; 310, placing rack; 320, sliding groove; 330, positioning pin; 340, locking screw; 350, sliding block. DETAILED DESCRIPTION

[0025] In order to further understand the present application, the application will be described in detail with reference to the drawings.

[0026] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] The present application will be further described below in conjunction with specific embodiments.

[0028] Reference Figure 1 As shown in the drawings, the wood pallet transfer device of the embodiment includes a mounting mechanism 100 and a transfer mechanism 200, wherein the mounting mechanism 100 includes a mounting bracket 110 and an overhead rail 130 and a ground rail 120 distributed vertically; at the same time, a first station A1 and a plurality of second stations A2 are sequentially arranged along the extension direction of the ground rail 120.

[0029] The transfer mechanism 200 includes a lifting assembly 220 and a clamping jaw assembly 240 arranged on one side of the lifting assembly 220; wherein the bottom of the lifting assembly 220 is slidably connected with the ground rail 120 through a vehicle body assembly 230, and the sliding direction is horizontal; at the same time, the vehicle body assembly 230 can drive the lifting assembly 220 to switch between the first station A1 and the second station A2.

[0030] The clamping jaw assembly 240 moves up and down under the driving of the lifting assembly 220, and is used for clamping and releasing the wooden pallet.

[0031] As shown in the drawings, Figure 2 In some embodiments, the ground rail 120 is fixed to the ground by the rail presser 140; meanwhile, the stopper 150 is arranged at both ends of the ground rail 120 to prevent the vehicle body assembly 230 from falling off the ground rail 120.

[0032] The basic working process of the wooden pallet transfer device is as follows: Initially, the vehicle body assembly 230 is located at the first station A1; at this time, the second station A2 has stacked empty wooden pallets; The lifting assembly 220 drives the clamping jaw assembly 240 to move upwards to a preset height; The vehicle body assembly 230 drives the lifting assembly 220 and the clamping jaw assembly 240 thereon to run above the second station A2; The lifting assembly 220 drives the clamping jaw assembly 240 to descend to a specified height, and the clamping jaw assembly 240 clamps the wooden pallet located on the upper layer; The clamping jaw assembly 240 lifts the clamped wooden pallet, and returns to the first station A1 under the driving of the vehicle body assembly 230; The clamping jaw assembly 240 descends and then releases the wooden pallet, and places the wooden pallet at the first station A1; thus, the transfer operation of one wooden pallet is completed.

[0033] The wooden pallet transfer device can realize the automatic transfer operation of the wooden pallet through the cooperation of the lifting assembly 220, the vehicle body assembly 230 and the clamping jaw assembly 240, and effectively improves the work efficiency. However, in actual operation, it is found that since the clamping jaw assembly 240 is arranged on one side of the lifting assembly 220, the lifting assembly 220 will bear a large unbalanced load, so that the horizontal movement of the lifting assembly 220 is prone to jamming, thereby hindering the improvement of work efficiency.

[0034] Therefore, in the present embodiment, the guide wheel assembly 210 is arranged on the top of the lifting assembly 220, and the lifting assembly 220 is in sliding cooperation with the overhead rail 130 through the guide wheel assembly 210.

[0035] The wooden pallet transfer device adopts the structure in which the overhead rail 130 and the ground rail 120 cooperate with each other, which can adapt to the unbalanced load of the clamping jaw assembly 240, so as to ensure the stability of the lifting assembly 220, thereby being beneficial to the improvement of work efficiency.

[0036] In addition, in order to prevent the track 130 and the guide wheel assembly 210 from swinging due to the existence of the gap, thereby affecting the stability of the movement of the lifting assembly 220. Generally, the guide wheel assembly 210 needs to be clamped to the track 130 to eliminate the existence of the gap. However, this has a high requirement for the straightness of the track 130. If the straightness of the track 130 changes, the guide wheel assembly 210 is easy to jam, thereby affecting the work efficiency.

[0037] Therefore, with reference to Figure 3 , in some embodiments, the guide wheel assembly 210 includes a guide wheel seat 211, and the guide wheel seat 211 is provided with a first mounting plate 212 and a second mounting plate 213. The first mounting plate 212 is rotatably arranged on the guide wheel seat 211 through a pin shaft.

[0038] Meanwhile, a pair of first guide wheels 214 are arranged on the first mounting plate 212, and a second guide wheel 215 is arranged on the second mounting plate 213, and the second guide wheel 215 and the two first guide wheels 214 form a clamping space for the track 130 to pass through. That is, after assembly, the first guide wheel 214 and the second guide wheel 215 are respectively located on both sides of the track 130 and roll with the side surface of the track 130.

[0039] The wood pallet transfer device of the embodiment has the straight-line guide automatic adjustment function of the first guide wheel 214 due to the rotation of the first mounting plate 212 around the pin shaft, so as to ensure the smoothness of the guide wheel assembly 210 during sliding and the stability of the operation of the lifting assembly 220.

[0040] Further, with reference to Figure 4 , the second guide wheel 215 is connected with an adjusting sleeve 217 through an adjusting shaft 216, the adjusting sleeve 217 is connected with a rotating plate 218, and the rotating plate 218 is connected with the second mounting plate 213 through a waist-shaped hole 2181 on the rotating plate 218.

[0041] When the rotating plate 218 rotates around the waist-shaped hole 2181, the position of the second guide wheel 215 can be changed through the adjusting sleeve 217 to adjust the width of the clamping space, so as to be applicable to the assembly operation of different specifications of the track 120.

[0042] Specifically, in the embodiment, the adjusting shaft 216 is eccentrically connected with the adjusting sleeve 217, so that when the adjusting sleeve 217 rotates, the horizontal position of the second guide wheel 215 can be adjusted through the adjusting shaft 216, thereby changing the distance between the second guide wheel 215 and the first guide wheel 214.

[0043] As Figure 5 , Figure 6As shown, in some embodiments, the lifting assembly 220 comprises a main beam 221 arranged on the vehicle body assembly 230, and a connecting plate 222 is arranged on the main beam 221 and slides in a vertical direction.

[0044] The connecting plate 222 has a U-shaped structure as a whole, and the inner sides of the two side walls are each provided with a roller bearing 223. The main beam 221 is provided with a clamping groove 224 for the roller bearing 223 to be clamped into and slide. Compared with the traditional linear module, this structure can withstand higher radial and axial loads, so as to better adapt to the offset arrangement of the clamping jaw assembly 240, so as to ensure the stability of the clamping jaw assembly 240 during the up and down movement, and facilitate to ensure the work efficiency.

[0045] Meanwhile, the connecting plate 222 is connected with a lifting motor 226 through a chain wheel unit 225, which is used to drive the connecting plate 222 to move up and down.

[0046] Further, the main beam 221 is provided with a limiting block 227 at both ends of the clamping groove 224, which is used to prevent the connecting plate 222 from disengaging from the clamping groove 224. The main beam 221 is provided with two first proximity switches 228 arranged in an up-down distribution in the extension region of the clamping groove 224, which are respectively used to detect the starting reference point and the ending reference point of the movement of the connecting plate 222.

[0047] Reference Figure 7 , Figure 8 As shown, the vehicle body assembly 230 comprises a vehicle frame 231, and the bottom of the vehicle frame 231 is provided with a driving wheel 232 and a third guide wheel 233. The driving wheel 232 is connected with a traveling motor 234; the third guide wheel 233 is arranged in pairs and located on both sides of the ground rail 120, and the spacing between the two third guide wheels 233 arranged in pairs is adjustable. The spacing adjustable structure here can adopt the mounting structure of the second guide wheel 215 described above, or other adjustable structures in the prior art, which is not specifically limited here.

[0048] In some embodiments, the vehicle frame 231 is provided with a buffer 235, a second proximity switch 236 and a laser range finder 237. The buffer 235 cooperates with the stop block 150 to limit the movement stroke of the vehicle frame 231; at the same time, the second proximity switch 236 performs the in-place detection function of the vehicle frame 231 through the stop block 150 The laser range finder 237 is arranged on the top of the vehicle frame 231, and the end of the ground rail 120 is provided with a sensing block 160 cooperating with the laser range finder 237, which is used to control the movement position of the vehicle body assembly 230.

[0049] Further, the sensing distance between the second proximity switch 236 and the stop block 150 is less than the contact distance between the buffer 235 and the stop block 150.

[0050] That is to say, in normal circumstances, when the second proximity switch 236 senses that the vehicle body assembly 230 is in place and stops moving, the bumper 235 will not collide with the stop block 150. Only when the second proximity switch 236 fails, the bumper 235 will contact the stop block 150, to further ensure the safety of the device operation.

[0051] In other embodiments, a pair of clamping plates 238 is arranged between the driving wheel 232 and the third guide wheel 233, and the pair of clamping plates 238 is arranged on both sides of the track 120, respectively, to prevent the vehicle frame 231 from falling off the track 120.

[0052] Further, the distance between the two clamping plates 238 arranged in pairs is greater than the distance between the two third guide wheels 233 arranged in pairs; and the lower end of the clamping plate 238 is lower than the lower end of the third guide wheel 233. In this way, the clamping plate 238 does not contact the track 120, and the vehicle body assembly 230 can effectively prevent the vehicle body assembly 230 from falling off the track 120 without affecting the normal movement of the vehicle body assembly 230, to ensure the stability of the operation of the vehicle body assembly 230.

[0053] Reference Figure 9 , Figure 10 , Figure 11 As shown in the figure, the clamping jaw assembly 240 includes a mounting seat 241, and the mounting seat 241 is connected with the connecting plate 222 through an extension plate 242. The mounting seat 241 is provided with a pair of opposite transverse movement cylinders 243, and the output end of each transverse movement cylinder 243 is connected with a clamping jaw 245 through a transition plate 244, and the two transition plates 244 are connected through a synchronization unit 246.

[0054] The synchronization unit 246 includes a gear seat 2461 and a gear 2462 in the gear seat 2461, and each side of the gear 2462 is engaged with a rack 2463, and the end of the rack 2463 extends out of the gear seat 2461 and is connected with the corresponding transition plate 244.

[0055] The wood pallet transfer device of the embodiment can ensure that the two clamping jaws 245 can move synchronously to ensure the stability of clamping the wood pallet through the arrangement of the synchronization unit 246.

[0056] Since the two clamping jaws 245 in the embodiment move synchronously, if the wood pallet cannot be located at the center of the two clamping jaws 245, clamping failure may occur.

[0057] Therefore, in the embodiment, guide units 2464 are arranged on both sides of the gear seat 2461, and the guide units 2464 are fixed on the extension plate 242. At the same time, centering cylinders 2465 are arranged on both sides of the gear seat 2461, and the centering cylinders 2465 are used for centering the two clamping jaws 245, to facilitate the synchronous clamping of the two clamping jaws 245.

[0058] It should be noted that the aforementioned guide unit 2464 can be formed using existing technologies, such as guide rods and linear bearings, and is not specifically limited here.

[0059] In some embodiments, the extension plate 242 is further provided with a detection plate 247 and / or a diffuse reflection sensor 248. The detection plate 247 is located in the clamping area enclosed by the two grippers 245, and is used to position the downward stroke of the gripper assembly 240. The detection plate 247 is connected to a lifting cylinder.

[0060] The diffuse reflection sensor 248 is located outside the clamping area and its illumination direction is towards the clamping area, used to detect whether there is a tray in the clamping area.

[0061] refer to Figure 12 , Figure 13 As shown, in some embodiments, a placement assembly 300 is provided at the second workstation A2. The placement assembly 300 includes an L-shaped placement rack 310, the vertical section of which is used to align and limit one side of the wooden pallet. The vertical section is formed by two columns, and a gap is left between the two columns for the gripper assembly 240 to move up and down.

[0062] The horizontal section of the display rack 310 is shaped like an "I". A sliding groove 320 is provided on the crossbeam of the horizontal section. A positioning pin 330 is provided above the sliding groove 320 and a sliding block 350 is provided below it. The positioning pin 330 and the sliding block 350 are connected by a locking screw 340.

[0063] Specifically, the locating pin 330 has a hollow structure, and the sliding block 350 has a threaded hole. The locking screw 340 passes through the through hole of the locating pin 330 and engages with the threaded hole to achieve the locking and unlocking operation of the sliding block 350.

[0064] This embodiment of a wooden pallet transfer device utilizes positioning pins 330 to position the pallet; at the same time, the slidable setting of the positioning pins 330 allows for real-time adjustment of the spacing between the positioning pins 330, thus making it suitable for positioning operations of pallets of different specifications.

[0065] The specific working process of a wooden pallet transfer device according to this embodiment is as follows: I. Wooden Pallet Handling: a) The vehicle body component 230 is in the initial work station (first work station A1); b) The lifting motor 226 is started, and the gripper assembly 240 is lifted to a preset height through the sprocket unit 225 in the lifting assembly 220, so that the gripper 245 is higher than the wooden pallet; c) The traveling motor 234 is started, and the car body assembly 230 is controlled to run to the first placing assembly 300 position and stop; at this time, the clamp jaw assembly 240 is located above the wood pallet to be clamped; d) The synchronization unit 246 is synchronized with the wood pallet centering adjustment of the piston rod of the centering cylinder 2465; the piston rod of the transverse moving cylinder 243 is extended by a certain distance, so that the two clamp jaws 245 are expanded to the two sides until they completely cover the wood pallet; e) The lifting motor 226 is started, and the clamp jaw assembly 240 is lowered by the chain wheel unit 225 in the lifting assembly 220 until the detection plate 247 contacts the wood pallet; the piston rod of the lifting cylinder is retracted to drive the detection plate 247 to rise, the lifting motor 226 drives the clamp jaw assembly 240 to continue to descend by a certain distance, and then stop descending; at this time, the wood pallet is just located at the middle position of the two clamp jaws 245; f) The piston rod of the transverse moving cylinder 243 is retracted by a certain distance, driving the two clamp jaws 245 to shrink to the two sides until the wood pallet is completely clamped; g) The lifting motor 226 is started, and the lifting assembly 220 lifts the clamp jaw assembly 240 to a preset height by the chain wheel unit 225; Two, wood pallet release: h) The traveling motor 234 is started, and the car body assembly 230 is controlled to run to the initial position; i) The lifting motor 226 is started, and the clamp jaw assembly 240 is lowered to a specified height by the chain wheel unit 225 in the lifting assembly 220; j) The piston rod of the transverse moving cylinder 243 is extended by a certain distance, driving the clamp jaw 245 to expand to the two sides until the wood pallet is completely released; k) The lifting motor 226 is started, and the lifting assembly 220 lifts the clamp jaw assembly 240 to a preset height by the chain wheel unit 225; at the same time, the piston rod of the lifting cylinder is extended, and the detection plate 247 is reset; Three, cycle operation: l) The car body assembly 230 is controlled to run to the first placing assembly 300 position and stop, and the steps from d) are repeated until the wood pallets on the first placing assembly 300 are all grabbed; m) The car body assembly 230 moves to the i=2, 3, 4, 5 placing assembly 300 position and stops, and the steps from d) are repeated until the wood pallets on the fifth placing assembly 300 are all grabbed, and the steps from a) are repeated.

[0066] The above describes the present application and its embodiments in a schematic manner, and the description is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the above, without departing from the spirit of the present application, similar structural modes and embodiments can be designed without creativity, and all of them shall belong to the protection scope of the present application.

Claims

1. A wooden pallet transfer device, characterized in that: Includes the installation mechanism (100). The installation mechanism (100) includes a mounting bracket (110) and a top rail (130) and a bottom rail (120) distributed vertically; the bottom rail (120) has a first station (A1) and a second station (A2) in sequence along its extension direction. And transshipment agencies (200). The transfer mechanism (200) includes, from top to bottom, a guide wheel assembly (210), a lifting assembly (220), and a vehicle body assembly (230); wherein, The vehicle body assembly (230) is slidably mounted on the ground rail (120) to drive the entire lifting assembly (220) to switch between the first station (A1) and the second station (A2); The lifting assembly (220) is connected to a gripper assembly (240) for clamping and releasing the wooden pallet on its side, and the lifting assembly (220) can drive the gripper assembly (240) to move up and down. The guide wheel assembly (210) includes a guide wheel seat (211), on which a first mounting plate (212) and a second mounting plate (213) are provided. The first mounting plate (212) is rotatably mounted on the guide wheel seat (211) via a pin. The first mounting plate (212) is provided with a pair of first guide wheels (214), and the second mounting plate (213) is provided with a second guide wheel (215); the second guide wheel (215) and the two first guide wheels (214) form a clamping space through which the ceiling track (130) passes.

2. The wooden pallet transfer device according to claim 1, characterized in that: The second guide wheel (215) is connected to an adjustment sleeve (217) via an adjustment shaft (216), and the adjustment sleeve (217) is connected to a rotating plate (218). The rotating plate (218) is connected to the second mounting plate (213) via a waist-shaped hole (2181). When the rotating plate (218) rotates around the waist-shaped hole (2181), the position of the second guide wheel (215) can be changed by adjusting the sleeve (217) to adjust the width of the clamping space.

3. A wooden pallet transfer device according to claim 1 or 2, characterized in that: The lifting assembly (220) includes a main beam (221) disposed on the vehicle body assembly (230), and a connecting plate (222) is slidably disposed on the main beam (221). The connecting plate (222) has an overall U-shaped structure, and roller bearings (223) are provided on the inner side of both side walls. The main beam (221) has slots (224) on both sides for the roller bearings (223) to be inserted and slid. The connecting plate (222) is connected to a lifting motor (226) via a sprocket unit (225).

4. A wooden pallet transfer device according to claim 3, characterized in that: The main beam (221) is provided with limiting blocks (227) at both ends of the slot (224) to prevent the connecting plate (222) from dislodging from the slot (224). The main beam (221) is provided with two first proximity switches (228) distributed vertically within the extension area of ​​the slot (224).

5. A wooden pallet transfer device according to claim 3, characterized in that: The vehicle body assembly (230) includes a frame (231), the bottom of which is provided with a drive wheel (232) and a third guide wheel (233); wherein, The drive wheel (232) is connected to the trolley motor (234), and the third guide wheels (233) are arranged in pairs; the two third guide wheels (233) arranged in pairs are located on both sides of the ground rail (120), and the distance between the two third guide wheels (233) arranged in pairs is adjustable.

6. A wooden pallet transfer device according to claim 5, characterized in that: The vehicle frame (231) is equipped with a buffer (235), a second proximity switch (236), and a laser rangefinder (237); wherein, The ground rail (120) has a stop block (150) for stopping the buffer (235). The second proximity switch (236) performs the position detection function of the frame (231) through the stop block (150). The sensing distance between the second proximity switch (236) and the stop block (150) is less than the contact distance between the buffer (235) and the stop block (150). The end of the ground rail (120) is provided with a sensing block (160) that cooperates with the laser rangefinder (237) to control the movement position of the vehicle body assembly (230).

7. A wooden pallet transfer device according to claim 5, characterized in that: A pair of clamping plates (238) are provided between the drive wheel (232) and the third guide wheel (233); wherein, The distance between the two clamping plates (238) arranged in pairs is greater than the distance between the two third guide wheels (233) arranged in pairs; and the lower end of the clamping plate (238) is lower than the lower end of the third guide wheel (233).

8. A wooden pallet transfer device according to claim 3, characterized in that: The gripper assembly (240) includes a mounting base (241), which is connected to a connecting plate (222) via an extension plate (242); The mounting base (241) is provided with a pair of transverse cylinders (243) facing opposite directions. The output end of each transverse cylinder (243) is connected to a gripper (245) through a transition plate (244), and the two transition plates (244) are connected to each other through a synchronization unit (246). The synchronization unit (246) includes a gear seat (2461) and a gear (2462) located in the gear seat (2461). Each gear (2462) meshes with a rack (2463) on opposite sides. The end of the rack (2463) extends out of the gear seat (2461) and connects to the corresponding transition plate (244).

9. A wooden pallet transfer device according to claim 8, characterized in that: The gear seat (2461) is mounted on the extension plate (242) via a guide unit (2464), and both sides of the gear seat (2461) are equipped with centering cylinders (2465) for centering the two grippers (245).

10. A wooden pallet transfer device according to claim 9, characterized in that: The extension plate (242) is further provided with a detection plate (247) and / or a diffuse reflection sensor (248); wherein, The detection plate (247) is located in the clamping area enclosed by two grippers (245) and is used to position the downward stroke of the gripper assembly (240). The detection plate (247) is connected to a lifting cylinder. The diffuse reflection sensor (248) is located outside the clamping area and its illumination direction is towards the clamping area, used to detect whether there is a tray in the clamping area.

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