Bridge type stacking machine

Abstract

The invention relates to a bridge type stacking machine. The device mainly comprises a lifting frame, a support is arranged on the lifting frame, a top end guide groove is formed in the top end of the support, a bottom end guide groove is formed in the bottom end of the support, a top end rack is arranged on the side wall of the top end of the support, and a bottom end rack is arranged on the side wall of the bottom end of the support. The top end rollers are arranged in the top end guide grooves, the bottom end rollers are arranged in the bottom end guide grooves, a first motor is further arranged on the movable frame and connected with a gear driving assembly, and the gear driving assembly is meshed with the top end rack and the bottom end rack. A rotating column and a rotating column driving assembly used for driving the rotating column to rotate are arranged at the end, away from the support, of the moving frame, and a pallet fork is arranged on the rotating column. The pallet fork of the bridge type stacking machine can rotate at a large angle in a small area under the condition that the stand column does not rotate.

Description

Technical Field

[0001] The present invention relates to the field of stackers, and particularly to a bridge stacker. Background Art

[0002] A bridge stacker is a device widely used in the field of material warehousing. The existing bridge stacker generally includes a trolley, on which a rotating mechanism is provided. The rotating mechanism is connected to a column, and the rotating mechanism can drive the column to rotate. The trolley moves along the Y-direction track, and the Y-direction track moves along the X-direction track. An elevating assembly is provided on the column, and a fork is provided on the elevating assembly. The goods are picked up and placed by the fork.

[0003] The existing such bridge stacker has the following deficiencies: The direction of the fork relative to the column is fixed, and the fork can only move up and down relative to the column. When it is necessary to change the orientation of the fork, the column needs to rotate, and then the fork is driven to turn by the column. Since the column is very large, such a method cannot achieve changing the orientation of the fork in a small area.

[0004] The goods need to be placed in a temporary unloading area first. Then, after manually determining that the conveyor in this area has left and the relevant personnel have evacuated this area, the bridge stacker can move to this area to pick up and stack the goods. The entire process has low efficiency. Summary of the Invention

[0005] Based on this, a bridge stacker is provided. The fork of this bridge stacker can achieve large-angle rotation in a small area without the column rotating, and is beneficial to improving the stacking efficiency.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A bridge stacker includes a column and a chain provided on the column. An elevating frame is provided on the chain. A bracket is provided on the elevating frame. A top guide groove is provided at the top of the bracket, and a bottom guide groove is provided at the bottom of the bracket. A top rack is provided on the side wall at the top of the bracket, and a bottom rack is provided on the side wall at the bottom of the bracket. A moving frame is further included. Top rollers and bottom rollers are respectively provided at the top and bottom of the moving frame. The top rollers are arranged in the top guide groove, and the bottom rollers are arranged in the bottom guide groove. A first motor is further provided on the moving frame. The first motor is connected to a gear drive assembly, and the gear drive assembly meshes with the top rack and the bottom rack. A rotating column and a rotating column drive assembly for driving the rotating column to rotate are provided at one end of the moving frame away from the bracket. A fork is provided on the rotating column. A first camera is provided at the lower end of the fork. The first camera is used to position the tray and confirm whether there are goods on the tray, and then guide the fork to insert into the jack on the tray. A second camera is provided at the top of the column. The second camera is used to determine whether there is goods in the temporary storage area. When stacking goods, after confirming that there is goods in the temporary storage area through the second camera, it is further confirmed whether there is anyone or a transport vehicle in the temporary storage area. After there is no one and no transport vehicle in the temporary storage area, the goods in the temporary storage area are picked up by the forklift. When it is necessary to take out the stacked goods and place them in the temporary storage area, the second camera is used to find a temporary storage area without stored goods, and the stacked goods are taken out and placed in the temporary storage area. The second camera is also used to confirm the placement status of each stacked goods.

[0007] In one embodiment, the gear drive assembly includes a first gear, a second gear, a third gear, and a fourth gear. The first gear is provided on a first rotating shaft, and the first rotating shaft is connected to a first motor. The second gear, the third gear, and the fourth gear are all provided on a second rotating shaft. The first gear meshes with the second gear, the third gear meshes with the bottom rack, and the fourth gear meshes with the top rack.

[0008] In one embodiment, the bottom surface of the top rack cooperates with a first rolling wheel provided on the moving frame, and the top surface of the bottom rack cooperates with a second rolling wheel provided on the moving frame.

[0009] In one embodiment, barcode scanners are respectively provided on both sides of the forklift. The barcode scanners are used to scan the goods codes on the pallet to obtain goods information, and stack the goods to the designated position according to the goods information. A barcode strip is provided on the side wall of the column. One end of the lifting frame is provided with a mounting frame, and a barcode locator is provided on the mounting frame. The position of the lifting frame is determined by the cooperation between the barcode locator and the barcode strip.

[0010] In one embodiment, a first travel switch for detecting the upper limit position of the lifting frame and a second travel switch for detecting the lower limit position of the lifting frame are further provided on the mounting frame. A first bumper block for cooperating with the first travel switch is provided at the upper limit position on the side wall of the column, and a second bumper block for cooperating with the second travel switch is provided at the lower limit position on the side wall of the column. A first magnetic reed switch and a second magnetic reed switch are further provided at one end of the lifting frame opposite to the mounting frame. An upper magnet and a lower magnet are provided on the side wall of the column. The upper magnet is located below the upper limit position, and the lower magnet is located above the lower limit position. The lifting frame starts to decelerate at the positions of the upper magnet and the lower magnet.

[0011] In one embodiment, a plurality of obstacle sensors are provided at the bottom end of the column. The obstacle sensors are used to detect whether there is an obstacle or a person in the walking track of the column. If an obstacle or a person is detected, the column stops moving.

[0012] In one embodiment, a through groove is provided on one side wall of the column. A chain is arranged in the through groove. One end of the chain is connected with a counterweight block, and the other end of the chain is connected with a lifting frame. A second motor is arranged at the top end of the column and is connected with a main sprocket. The chain cooperates with the main sprocket. A plurality of auxiliary sprockets are also arranged at the top end of the column, and the chain sequentially passes through each auxiliary sprocket.

[0013] In one embodiment, the top end of the column is connected with a rotating mechanism. The rotating mechanism is arranged on a trolley, and the trolley is arranged on a Y-direction main beam. Traveling mechanisms are arranged at both ends of the Y-direction main beam, and the traveling mechanisms are arranged on an X-direction track.

[0014] In one embodiment, a brush is arranged at the end of the traveling mechanism. The brush is used for cleaning the X-direction track. A limit grab hook is also arranged at the end of the traveling mechanism. The limit grab hook includes a through hole for the X-ray track to pass through and a hook portion located below the through hole. The hook portion extends to the lower part of the upper part of the X-direction track.

[0015] In one embodiment, there are a plurality of notches on the Y-direction main beam. The notches are used for the wheels of the trolley to pass through. The wheels of the trolley are located on a guiding track inside the Y-direction main beam. A plurality of pressing wheels cooperating with the lower end surface of the Y-direction main beam are arranged at the bottom end of the trolley.

[0016] The beneficial effects of the present application are as follows: 1. The fork in the prior art cannot rotate relative to the column. When the fork needs to change direction, the column needs to rotate. The column is very large in volume, which requires a very large rotating space for the column. At the same time, the fork also needs a rotating space. The rotating space required by the two together is relatively large. Moreover, since the fork is directly connected with the lifting plate and the lifting plate is connected with the chain, the fork cannot rotate by itself. In the structure of the present application, a bracket is arranged on the lifting frame. The bracket cooperates with the moving frame, and the moving frame can linearly move horizontally along the bracket. At the same time, a rotating column is arranged at one end of the moving frame away from the bracket, and a fork is arranged on the rotating column. With such an arrangement, the fork can realize large-angle rotation through the rotating column by itself. During the rotation of the fork, the column does not need to rotate. Therefore, the space required for the rotation of the column can be saved. Moreover, the moving frame of the present application can move horizontally along the bracket. During the horizontal movement of the moving frame, the fork can rotate, so that the narrow space can be fully utilized to make the fork rotate.

[0017] 2. The first camera of the present application can perform visual positioning on the jacks on the tray and adjust the position of the fork according to the positioning information. Since the moving frame of the present application can move horizontally and at the same time the fork can rotate, the position adjustment of the fork is flexible and changeable, and can be flexibly adjusted according to the position of the jacks on the tray.

[0018] 3. A second camera is provided at the top of the column of this application. The second camera is used to determine whether there is goods in the temporary storage area. When stacking goods, after confirming that there is goods in the temporary storage area through the second camera, it is then necessary to confirm whether there is anyone or a transport vehicle in the temporary storage area. After there is no one and no transport vehicle in the temporary storage area, the goods in the temporary storage area are picked up by the forklift. When it is necessary to take out the stacked goods and place them in the temporary storage area, the second camera is used to find the temporary storage area without stored goods, and the stacked goods are taken out and placed in the temporary storage area. By using the second camera in this application, it is beneficial to quickly confirm the goods, transport vehicles and people, which is beneficial to improving the stacking efficiency and also improving the safety of use.

[0019] Moreover, the second camera of this application is also used to confirm the placement of each stacked goods. For example, the column can be moved in each lane to obtain the placement of the goods in each stacking area through the second camera. According to this information, it can bring a reasonable judgment basis for subsequent stacking of goods in a timely manner. It can also find some possible unreasonable stacking situations to avoid the occurrence of dangerous situations.

[0020] 4. This application is provided with a barcode scanner, which is used to scan the goods code on the pallet to obtain the goods information. This information can be used to determine which area of the shelf the goods should be placed on, and this information can also be used to determine the rising or falling speed of the lifting frame. Some goods can rise or fall at a relatively high speed, while some goods need to rise or fall at a slower speed. By obtaining the above-mentioned goods information, the rising or falling speed of the goods can be determined according to the requirements, ensuring that the goods are smoothly transported and avoiding the danger of tipping over.

[0021] 5. The gear drive assembly of this application has a simple structure and cooperates with 2 racks. At the same time, rollers are provided at the end faces of the racks of this application, and top rollers and bottom rollers are respectively provided at the top and bottom of the moving frame. Both the top rollers and the bottom rollers are arranged in the guide groove and are in rolling cooperation with the guide groove. These structures work together to make the moving frame of this application move smoothly and smoothly.

[0022] 6. The cooperation between the barcode tape and the barcode locator of this application is beneficial to realizing the precise movement of the lifting frame.

[0023] 7. This application is provided with a reed switch and a limit switch. The signal of the reed switch enables the lifting frame to decelerate before reaching the limit position, and the signal of the limit switch can make the lifting frame stop moving after reaching the limit position. The two work together to prevent accidents.

[0024] 8. The setting of the obstacle sensor can prevent the column from colliding with people or other obstacles during the moving process.

[0025] 9. This application is provided with a counterweight, and the setting of the counterweight helps to reduce the load on the motor.

[0026] 10. The brush and the limit hook of this application work together, which is beneficial to the stable and rapid movement of the walking mechanism to improve the efficiency of goods stacking.

[0027] 11. There are several notches on the Y-direction main beam, which facilitates loading the trolley onto the guiding track inside the Y-direction main beam. Several pressure wheels are arranged at the bottom end of the trolley, which cooperate with the lower end surface of the Y-direction main beam. This is beneficial to prevent the trolley from shaking easily and is conducive to the rapid and stable movement of the trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the bridge stacker in the embodiment of this application when conveying goods.

[0029] Figure 2 It is a schematic diagram of the bridge stacker in the embodiment of this application.

[0030] Figure 3 It is a schematic diagram of the second motor arranged on the column of the bridge stacker in the embodiment of this application.

[0031] Figure 4 It is a schematic diagram of the main sprocket, chain and auxiliary sprocket in the embodiment of this application.

[0032] Figure 5 It is a schematic diagram of the cooperation relationship of two oil cylinders, drive chain, sprocket and rotating column in the embodiment of this application.

[0033] Figure 6 It is a schematic diagram of the setting method of the gear drive assembly in the embodiment of this application.

[0034] Figure 7 It is a schematic diagram of the trolley arranged on the Y-direction main beam in the embodiment of this application.

[0035] Figure 8 It is a schematic diagram of the counterweight in the embodiment of this application.

[0036] Figure 9 It is a schematic diagram of the travel switch and magnetic reed switch in the embodiment of this application.

[0037] Figure 10 It is a schematic diagram of the brush and limit hook in the embodiment of this application.

[0038] Figure 11 It is a schematic diagram of the pressure wheel in the embodiment of this application.

[0039] Wherein: 101, upright column; 102, chain; 103, lifting frame; 104, bracket; 105, top guide groove; 106, bottom guide groove; 107, top rack; 108, bottom rack; 109, moving frame; 110, top roller; 111, bottom roller; 112, first motor; 1131, first gear; 1132, second gear; 1133, third gear; 1134, fourth gear; 1135, first rotating shaft; 1136, second rotating shaft; 114, rotating column; 1151, oil cylinder; 1152, driving chain; 1153, driving sprocket; 116, forklift; 117, first camera; 118, second camera; 119, first rolling wheel; 120, second rolling wheel; 121, barcode scanner; 122, counterweight; 123, second motor; 124, main sprocket; 125, auxiliary sprocket; 126, first travel switch; 127, second travel switch; 128, first bumper; 129, second bumper; 130, first magnetic reed switch; 131, second magnetic reed switch; 132, upper magnet; 133, lower magnet; 134, obstacle sensor; 135, rotating mechanism; 136, trolley; 137, Y-direction main beam; 138, traveling mechanism; 139, X-direction track; 140, brush; 141, limit hook; 142, hook part; 143, notch; 144, wheel; 145, pressure wheel; 146, bar code tape; 147, bar code locator. Detailed implementation manners

[0040] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given with reference to the accompanying drawings.

[0041] As Figures 1 to 4As shown in the figure, an embodiment of the present application provides a bridge stacker, which includes a column 101 and a chain 102 disposed on the column 101. An elevating frame 103 is provided on the chain 102, and a bracket 104 is provided on the elevating frame 103. A top guiding groove 105 is provided at the top of the bracket 104, and a bottom guiding groove 106 is provided at the bottom of the bracket 104. A top rack 107 is provided on the side wall at the top of the bracket 104, and a bottom rack 108 is provided on the side wall at the bottom of the bracket 104. The bridge stacker further includes a moving frame 109. A top roller 110 and a bottom roller 111 are respectively provided at the top and bottom of the moving frame 109. The top roller 110 is disposed in the top guiding groove 105, and the bottom roller 111 is disposed in the bottom guiding groove 106. A first motor 112 is further provided on the moving frame 109. The first motor 112 is connected to a gear driving assembly, and the gear driving assembly meshes with the top rack 107 and the bottom rack 108. A rotating column 114 and a rotating column driving assembly for driving the rotating column 114 to rotate are provided at one end of the moving frame 109 away from the bracket 104. A fork 116 is provided on the rotating column 114, and the fork 116 is fixed to the rotating column 114 by bolts or other fixing means. A first camera 117 is provided at the lower end of the fork 116. The first camera 117 is used to position the pallet and confirm whether there is any goods on the pallet, and then guide the fork 116 to insert into the jack on the pallet. A second camera 118 is provided at the top of the column 101. The second camera 118 is used to determine whether there is any goods in the temporary storage area of the goods. When stacking goods, after confirming that there are goods in the temporary storage area through the second camera 118, it is further confirmed whether there are people or transport vehicles in the temporary storage area. After there are no people and transport vehicles in the temporary storage area, the goods in the temporary storage area are picked up by the fork 116. When it is necessary to take out the stacked goods and place them in the temporary storage area, the second camera 118 is used to find a temporary storage area without stored goods, and the stacked goods are taken out and placed in the temporary storage area. The second camera 118 is also used to confirm the placement status of each stacked goods.

[0042] Specifically, the initial position of the forklift 116 faces the right side. If it is necessary to turn the forklift 116 to face the left side, the rotating column driving assembly can be used to drive the rotating column 114 to rotate. Since the forklift 116 is arranged on the rotating column 114, the forklift 116 will rotate together with the rotating column 114, so that the orientation of the forklift 116 can be changed to face the left side. If there are some obstacles on the right side that may cause the forklift 116 to hit these obstacles during the rotation process, the moving frame 109 can be horizontally moved to the left side. During the movement, the forklift 116 can also rotate. When the forklift 116 rotates by 90 degrees, if the forklift 116 continues to rotate to the left side, it may hit some obstacles on the left side. At this time, the moving frame 109 can be moved to the right side. During the movement of the moving frame 109, the forklift 116 can continue to rotate to the left side, and finally the forklift 116 faces the left side.

[0043] In this application, since the moving frame 109 can be horizontally moved and the forklift 116 can be rotated driven by the rotating column 114, the forklift 116 can achieve steering in a relatively small area.

[0044] Specifically, as Figure 5 shown, both ends of the rotating column 114 can be installed on the moving frame 109 through bearings. There are various implementation manners of the above-mentioned rotating column driving assembly. For example, it may include two oil cylinders 1151. The two oil cylinders 1151 are respectively connected to both ends of a driving chain 1152, and the driving chain 1152 is engaged with a driving sprocket 1153 arranged at the upper end of the rotating column 114. Through the telescopic movement of the oil cylinder 1151, the rotation of the rotating column 114 can be realized. It can be understood that the above-mentioned rotating column driving assembly can also be other types of rotary driving mechanisms, as long as it can achieve the function of driving the rotating column 114 to rotate.

[0045] Specifically, the recognition of people, transport vehicles and goods by the second camera 118 in this application can be realized by the image recognition method of the existing technology.

[0046] Specifically, when stacking goods, the information obtained by the second camera 118 is used to confirm whether there are goods in the temporary storage area. If there are goods, it is further confirmed whether there are people or transport vehicles in the temporary storage area. If there are people or transport vehicles, after the people and transport vehicles evacuate, the goods in the temporary storage area are picked up by the forklift 116.

[0047] When it is necessary to take out the stacked goods and place them in the temporary storage area, the second camera 118 is used to find a temporary storage area without stored goods. At this time, if there are goods in all the adjacent temporary storage areas, the column 101 can be moved to find other temporary storage areas without stored goods. If a suitable temporary storage area is found, the stacked goods are taken out and placed in this temporary storage area.

[0048] Furthermore, by moving the column 101, the second camera 118 can be moved between different stacking areas, and then the placement information of the goods in different stacking areas can be obtained through the second camera 118. Based on this information, a reasonable judgment basis can be provided for subsequent stacking of goods in a timely manner. It can also detect some possible unreasonable stacking situations to avoid potential risks.

[0049] In one embodiment, as Figure 5 and Figure 6 shown, the gear drive assembly includes a first gear 1131, a second gear 1132, a third gear 1133, and a fourth gear 1134. The first gear 1131 is arranged on a first rotating shaft 1135, and the first rotating shaft 1135 is connected to a first motor 112. The second gear 1132, the third gear 1133, and the fourth gear 1134 are all arranged on a second rotating shaft 1136. The first gear 1131 meshes with the second gear 1132, the third gear 1133 meshes with the bottom rack 108, and the fourth gear 1134 meshes with the top rack 107.

[0050] Specifically, the rotation of the first motor 112 can drive the first gear 1131 to rotate. The first gear 1131 will drive the second gear 1132 to rotate. The second gear 1132 will drive the second rotating shaft 1136 to rotate. The second rotating shaft 1136 will drive the third gear 1133 and the fourth gear 1134 to rotate. Since the third gear 1133 meshes with the bottom rack 108 and the fourth gear 1134 meshes with the top rack 107, the moving frame 109 can move along the length direction of the rack.

[0051] In one embodiment, as Figure 6 shown, the bottom surface of the top rack 107 cooperates with a first rolling wheel 119 arranged on the moving frame 109, and the top surface of the bottom rack 108 cooperates with a second rolling wheel 120 arranged on the moving frame 109.

[0052] Specifically, the first rolling wheel 119 and the second rolling wheel 120 respectively rollingly cooperate with the corresponding rack end faces. The length direction of the top guide groove 105 is the same as the length direction of the top rack 107, and the length direction of the bottom guide groove 106 is the same as the length direction of the bottom rack 108. The two racks are arranged in parallel at intervals. The axial direction of the top roller 110 is the vertical direction, so that both ends in the diameter direction of the top roller 110 can contact the two side walls of the top guide groove 105, which is beneficial to the smooth movement of the moving frame 109. Similarly, both ends in the diameter direction of the bottom roller 111 can contact the two side walls of the bottom guide groove 106.

[0053] In one embodiment, asFigure 6 As shown, barcode scanners 121 are respectively arranged on both sides of the fork 116. The barcode scanners 121 are used to scan the goods codes on the pallet to obtain goods information, and stack the goods to the designated position according to the goods information. A barcode strip 146 is arranged on the side wall of the column 101, and a mounting bracket is arranged at one end of the lifting frame 103. A barcode locator 147 is arranged on the mounting bracket. The position of the lifting frame 103 is determined by the cooperation of the barcode locator 147 and the barcode strip 146.

[0054] Specifically, the above-mentioned barcode scanners 121 are used to obtain goods information. According to the goods information, the goods are stacked to the designated position. In addition, according to the goods information, the rising or falling speed of the lifting frame 103 can also be determined. Some goods can rise or fall at a relatively high speed, which is beneficial to improving the stacking efficiency. Some goods need to rise or fall at a slower speed to ensure the stable transportation of the goods. By obtaining the above-mentioned goods information, the rising or falling speed of the goods can be determined according to the needs, ensuring the stable transportation of the goods and avoiding the risk of tipping.

[0055] Specifically, the above-mentioned barcode strip 146 is arranged along the height direction of the column 101 from bottom to top. The mounting bracket moves with the lifting frame 103, so that the barcode locator 147 also moves with the lifting frame 103. The position information is obtained in real time through the cooperation of the barcode locator 147 and the barcode strip 146, so that the height position information of the lifting frame 103 and the fork 116 can be accurately obtained.

[0056] In one of the embodiments, as Figure 8 shown, a through groove is arranged on one side wall of the column 101. A chain 102 is arranged in the through groove. One end of the chain 102 is connected with a counterweight 122. Multiple rollers can be arranged on the counterweight 122. The other end of the chain 102 is connected with the lifting frame 103. A second motor 123 is arranged at the top of the column 101. The second motor 123 is connected with a main sprocket 124 through a reducer. The chain 102 is engaged with the main sprocket 124. A plurality of auxiliary sprockets 125 are also arranged at the top of the column 101. The chain 102 passes through each auxiliary sprocket 125 in turn.

[0057] Specifically, the rotation of the second motor 123 drives the rotation of the main sprocket 124. The rotation of the main sprocket 124 will cause the chain 102 to move, and then cause the lifting frame 103 connected to the chain 102 to move. The movement of the lifting frame 103 will drive the fork 116 to move, and then cause the goods on the fork 116 to rise and fall. Specifically, when the fork 116 rises, the counterweight 122 descends, and when the fork 116 descends, the counterweight 122 rises.

[0058] In one of the embodiments, as Figure 9As shown, a first travel switch 126 for detecting the upper limit position of the lifting frame 103 and a second travel switch 127 for detecting the lower limit position of the lifting frame 103 are further provided on the mounting frame. A first striker 128 cooperating with the first travel switch 126 is provided at the upper limit position on the side wall of the column 101, and a second striker 129 cooperating with the second travel switch 127 is provided at the lower limit position on the side wall of the column 101. A first magnetic reed switch 130 and a second magnetic reed switch 131 are further provided at one end of the lifting frame 103 opposite to the mounting frame. An upper magnet 132 and a lower magnet 133 are provided on the side wall of the column 101. The upper magnet 132 is located below the upper limit position, and the lower magnet 133 is located above the lower limit position. The lifting frame 103 starts to decelerate at the position of the upper magnet 132 and the position of the lower magnet 133.

[0059] Specifically, when the first magnetic reed switch 130 cooperates with the upper magnet 132 and the second magnetic reed switch 131 cooperates with the lower magnet 133. When the lifting frame 103 moves upward, a first signal will be generated after the first magnetic reed is at the position of the upper magnet 132. After the control system obtains the first signal, it prompts the second motor 123 to decelerate, thereby reducing the moving speed of the lifting frame 103. Similarly, a second signal will be generated after the second magnetic reed is at the position of the lower magnet 133. After the control system obtains the second signal, it will also prompt the second motor 123 to decelerate, thereby reducing the moving speed of the lifting frame 103. When the first travel switch touches the first striker 128, or when the second travel switch 127 touches the second striker 129, the lifting frame 103 stops moving.

[0060] In one embodiment, as Figure 8 shown, a plurality of obstacle sensors 134 are provided at the bottom end of the column 101. The obstacle sensors 134 are used to detect whether there are obstacles or people in the walking track of the column 101. If an obstacle or a person is detected, the column 101 stops moving.

[0061] Specifically, 2 or more obstacle sensors 134 are provided at the bottom end of the column 101, and the obstacle sensors 134 can be sensors such as lidar.

[0062] In one embodiment, as Figure 7As shown, the top end of the column 101 is connected to a rotating mechanism 135. The rotating mechanism 135 is arranged on a trolley 136. The trolley 136 is arranged on a Y-direction main beam 137. Traveling mechanisms 138 are arranged at both ends of the Y-direction main beam 137. The traveling mechanisms 138 are arranged on an X-direction track 139. The above-mentioned traveling mechanisms 138 can be existing motor-driven traveling mechanisms 138. The motor drives the wheels of the traveling mechanism 138 to move through a transmission mechanism. The X direction and the Y direction are two mutually perpendicular directions. The trolley 136 can move along the Y direction on the Y-direction main beam 137, and the Y-direction main beam 137 can move on the X-direction track 139. In this way, the movement of the column 101 in the X direction and the Y direction can be realized, and further the movement of the column 101 in the X direction and the Y direction can be realized. Further, the column 101 can rotate driven by the rotating mechanism 135. There are various implementation manners of the above-mentioned rotating mechanism 135. For example, an internal gear ring is installed on the column 101, the motor drives the gear to rotate, the gear drives the internal gear ring to rotate, and further drives the column 101 to rotate.

[0063] In one embodiment, as Figure 10 shown, a brush 140 is arranged at the end of the traveling mechanism 138. The brush 140 is used to clean the X-direction track 139. A limit grab hook 141 is also arranged at the end of the traveling mechanism 138. The limit grab hook 141 includes a through hole for the X-ray track to pass through and a hook portion 142 located below the through hole. The hook portion 142 extends to the lower part of the upper part of the X-direction track 139.

[0064] Specifically, during the movement of the traveling mechanism 138, the brush 140 cleans the X-direction track 139 to remove impurities on the track. The X-direction track 139 is an I-shaped track. The two hook portions 142 of the limit grab hook 141 respectively extend to the lower part of the upper part of the X-direction track 139. In this way, the traveling mechanism 138 can be effectively prevented from deviating from the track, so that the traveling mechanism 138 can move smoothly and quickly.

[0065] In one embodiment, as Figure 7 shown, there are several notches 143 on the Y-direction main beam 137. The notches 143 are used for the wheels 144 of the trolley 136 to pass through. The wheels 144 of the trolley 136 are located on the guiding track inside the Y-direction main beam 137. Several pressing wheels 145 that cooperate with the lower end surface of the Y-direction main beam 137 are arranged at the bottom end of the trolley 136.

[0066] Specifically, multiple wheels of the trolley 136 can enter the guiding track inside the Y-direction main beam 137 through the corresponding notches 143, so that the trolley 136 can be quickly assembled in place. The wheels of the trolley 136 are located on the guiding track inside the Y-direction main beam 137. At the same time, several pressing wheels 145 are arranged at the bottom end of the trolley 136 to cooperate with the lower end surface of the Y-direction main beam 137, so that the trolley 136 will not shake easily during the movement, which is beneficial to the quick movement of the trolley 136.

[0067] The above embodiments only represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent shall be subject to the appended claims.

Claims

1. A bridge stacker, comprising a column and a chain provided on the column, wherein a lifting frame is provided on the chain, characterized in that, A support is provided on the lifting frame. A top guide groove is provided at the top of the support, and a bottom guide groove is provided at the bottom of the support. A top rack is provided on the side wall of the top of the support, and a bottom rack is provided on the side wall of the bottom of the support. It further includes a moving frame. Top rollers and bottom rollers are respectively provided at the top and bottom of the moving frame. The top rollers are arranged in the top guide groove, and the bottom rollers are arranged in the bottom guide groove. A first motor is also provided on the moving frame. The first motor is connected to a gear drive assembly, and the gear drive assembly meshes with the top rack and the bottom rack. A rotating column and a rotating column drive assembly for driving the rotating column to rotate are provided at one end of the moving frame away from the support. A fork is provided on the rotating column. A first camera is provided at the lower end of the fork. The first camera is used to locate the tray and confirm whether there is goods on the tray, and then guide the fork to insert into the jack on the tray. A second camera is provided at the top of the column. The second camera is used to determine whether there is goods in the temporary storage area for goods. When stacking goods, after confirming that there is goods in the temporary storage area through the second camera, then confirm whether there is anyone or transport vehicle in the temporary storage area. When there is no one and no transport vehicle in the temporary storage area, pick up the goods in the temporary storage area through the fork. When it is necessary to take out the stacked goods and place them in the temporary storage area, find the temporary storage area without stored goods through the second camera, and take out the stacked goods and place them in the temporary storage area. The second camera is also used to confirm the placement status of each stacked goods.

2. The bridge stacker according to claim 1, characterized in that, The gear drive assembly includes a first gear, a second gear, a third gear, and a fourth gear. The first gear is arranged on a first rotating shaft, and the first rotating shaft is connected to the first motor. The second gear, the third gear, and the fourth gear are all arranged on a second rotating shaft. The first gear meshes with the second gear, the third gear meshes with the bottom rack, and the fourth gear meshes with the top rack.

3. The bridge stacker according to claim 2, characterized in that, The bottom surface of the top rack cooperates with the first rolling wheel provided on the moving frame, and the top surface of the bottom rack cooperates with the second rolling wheel provided on the moving frame.

4. The bridge stacker according to claim 1, characterized in that, Scanners are respectively provided on both sides of the fork. The scanners are used to scan the goods codes on the tray to obtain goods information, and stack the goods to the designated position according to the goods information. A barcode strip is provided on the side wall of the column. An installation frame is provided at one end of the lifting frame, and a barcode locator is provided on the installation frame. The position of the lifting frame is determined by the cooperation of the barcode locator and the barcode strip.

5. The bridge stacker according to claim 4, wherein, A first travel switch for detecting the upper limit position of the lifting frame and a second travel switch for detecting the lower limit position of the lifting frame are further provided on the mounting frame. A first striker cooperating with the first travel switch is provided on the side wall of the column at the upper limit position, and a second striker cooperating with the second travel switch is provided on the side wall of the column at the lower limit position. A first magnetic reed switch and a second magnetic reed switch are further provided at one end of the lifting frame opposite to the mounting frame. An upper magnet and a lower magnet are provided on the side wall of the column. The upper magnet is located below the upper limit position, and the lower magnet is located above the lower limit position. The lifting frame starts to decelerate at the positions of the upper magnet and the lower magnet.

6. The bridge stacker according to claim 1, characterized in that, A plurality of obstacle sensors are provided at the bottom end of the column. The obstacle sensors are used to detect whether there are obstacles or people in the traveling track of the column. If an obstacle or a person is detected, the column stops moving.

7. The bridge stacker according to claim 1, characterized in that, A through groove is provided on one side wall of the column. A chain is provided in the through groove. One end of the chain is connected with a counterweight, and the other end of the chain is connected with the lifting frame. A second motor is provided at the top end of the column. The second motor is connected with a main sprocket. The chain cooperates with the main sprocket. A plurality of auxiliary sprockets are further provided at the top end of the column. The chain passes through each auxiliary sprocket in sequence.

8. The bridge stacker according to claim 1, characterized in that The top end of the column is connected with a rotating mechanism. The rotating mechanism is arranged on a trolley. The trolley is arranged on a Y-direction main beam. Traveling mechanisms are provided at both ends of the Y-direction main beam. The traveling mechanisms are arranged on X-direction tracks.

9. The bridge stacker according to claim 8, wherein, A brush is provided at the end of the traveling mechanism. The brush is used to clean the X-direction track. A limit grab hook is further provided at the end of the traveling mechanism. The limit grab hook includes a through hole for the X-ray track to pass through and a hook portion located below the through hole. The hook portion extends to the lower part of the upper part of the X-direction track.

10. The bridge stacker according to claim 8, wherein, A plurality of notches are provided on the Y-direction main beam. The notches are used for the wheels of the trolley to pass through. The wheels of the trolley are located on the guiding tracks inside the Y-direction main beam. A plurality of pressing wheels cooperating with the lower end surface of the Y-direction main beam are provided at the bottom end of the trolley.

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