Full-automatic intelligent logistics transfer system for packaging products

Abstract

The invention discloses a full-automatic intelligent logistics transfer system for packaging products, and particularly relates to the field of logistics transfer, the full-automatic intelligent logistics transfer system comprises a conveying mechanism, the conveying mechanism comprises a first conveying assembly and a second conveying assembly, the first conveying assembly and the second conveying assembly are both used for conveying products, and the second conveying assembly is used for receiving the products conveyed by the first conveying assembly; a transferring mechanism is arranged between the first conveying assembly and the second conveying assembly and used for transferring products to the second conveying assembly from the first conveying assembly. The transferring mechanism comprises a rotatable transferring frame, the transferring frame comprises a plurality of abutting plates, and when the first conveying assembly conveys products, the abutting plates are perpendicular to the conveying direction of the first conveying assembly. By means of the transferring mechanism and the fixing mechanism, the products can be transferred from the first conveying assembly to the second conveying assembly in the upward direction, after transferring, it can be guaranteed that the products are in the straightening state, it is guaranteed that labels of the products face the side edge of the second conveying assembly after direction adjustment, and subsequent scanning and recognition of the labels are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics transfer, and more specifically, to a fully automatic intelligent logistics transfer system for packaged products. Background Art

[0002] Packaged product logistics refers to a series of activities in the supply chain management for the transportation, storage and distribution of packaged products. This link usually involves transporting products from one location to another while ensuring that the integrity and safety of the products are protected during the transportation process.

[0003] In the production process of packaged products, it is often necessary to transfer the packaged products from one conveyor belt to another conveyor belt in two different conveying directions. At present, transfer robots are usually used for transfer from one conveyor belt to another. However, since transfer robots are relatively expensive and have high maintenance costs, they are not suitable for small businesses. Therefore, in small businesses, some transfer mechanisms are usually set between the two conveyor belts to transfer the packaged products.

[0004] In the prior art, when a packaged product is transferred from one conveyor belt to another, since the conveying directions of the two conveyor belts are different, when the packaged product is on the two conveyor belts at the same time, the packaged product will be offset due to the different conveying directions, which will affect the subsequent recognition of the labels on the packaged product. Therefore, in the prior art, the two conveyor belts can be set at different heights and the conveying speed of the first conveyor belt can be set faster, so that when the product is conveyed from the first conveyor belt to the other conveyor belt, the packaged product can be directly dropped onto the other conveyor belt, so as to avoid the problem that the packaged product falls onto the other conveyor belt first due to the slow conveying speed, causing the corners of the packaged product to be damaged during the conveying process.

[0005] However, since the conveyor belt speed is set relatively fast, when the packaged products are transferred to another conveyor belt, the packaged products are easily damaged by colliding with the conveyor belt support due to inertia. In addition, since labels are usually affixed to the packaged products and scanned and identified, small enterprises often manually affix labels. When the packaged products are transported on the first conveyor belt, the labels are manually affixed. Since the labels are manually affixed, it is necessary to manually press the labels to ensure that the labels fit tightly. Therefore, it is difficult to ensure that the packaged products are in a straight state when the labels are affixed, resulting in the products being in a skewed state after transfer. At the same time, the operator is required to be on the side of the conveyor belt to affix the labels on the side of the packaged products. Therefore, when the packaged products on the conveyor belt are transferred to another conveyor belt, the labels are not facing the side of the conveyor belt, which is not convenient for subsequent scanning and identification of the labels. For this reason, the present invention proposes a fully automatic intelligent logistics transfer system for packaged products to solve the above-mentioned problems. Summary of the invention

[0006] The present invention provides a fully automatic intelligent logistics transfer system for packaged products, and aims to solve the following problems: the existing system sets the conveyor belt speed faster, and when the packaged products are transferred to another conveyor belt, it is easy for the packaged products to collide with the conveyor belt support under the action of inertia and cause damage. In addition, since labels are usually affixed to the packaged products and scanned and identified, small enterprises often manually affix labels. When the packaged products are transported on the first conveyor belt, the labels are manually affixed. Since the labels are manually affixed, it is necessary to manually press the labels to ensure that the labels fit. Therefore, it is difficult to ensure that the packaged products are in a straightened state when the labels are affixed, resulting in the products being in a skewed state after transfer. At the same time, the operator is required to be on the side of the conveyor belt to affix the labels to the side of the packaged products. Therefore, when the packaged products on the conveyor belt are transferred to another conveyor belt, the labels are not facing the side of the conveyor belt, which is not convenient for subsequent scanning and identification of the labels.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a fully automatic intelligent logistics transfer system for packaged products, comprising: a conveying mechanism, the conveying mechanism comprising a conveying component 1 and a conveying component 2, the conveying component 1 and the conveying component 2 are both used to convey products, and the conveying component 2 is used to receive the products conveyed by the conveying component 1, a transfer mechanism is arranged between the conveying component 1 and the conveying component 2, and the transfer mechanism is used to transfer the product from the conveying component 1 to the conveying component 2; The transfer mechanism includes a rotatable transfer frame, which includes a plurality of abutment plates. When the conveying component 1 conveys the product, the abutment plates are perpendicular to the conveying direction of the conveying component 1 until the product contacts the abutment plates. A fixing mechanism is arranged on the abutment plate. When the product contacts the abutment plate, the fixing mechanism fixes the product to the abutment plate, and the product is transferred to the second conveying component through the rotation of the transfer frame.

[0008] In a preferred embodiment, the fixing mechanism is a fixing component 1, which includes a slide groove opened on the abutment plate, a drive shaft 2 is arranged in the slide groove, a fixing bar is installed at the output end of the drive shaft 2, a shift shaft is installed on the fixing bar, a slide plate is slidably arranged in the slide groove, an opening is opened at the end of the slide plate, and the shift shaft is slidably arranged in the opening.

[0009] In a preferred embodiment, a plurality of abutment plates are fixedly provided with side plates, and the side plates are used to abut against the side edges of the product.

[0010] In a preferred embodiment, the fixing mechanism is a fixing component 2, which includes an inner cavity, which is opened in the support plate, and a plurality of adsorption holes are opened on the support plate, and an exhaust pipe is also installed on the support plate. The plurality of adsorption holes and the exhaust pipe are connected to the inner cavity, and the end of the exhaust pipe is connected to the exhaust component, which adsorbs and fixes the product on the support plate through suction.

[0011] In a preferred embodiment, an adjustment mechanism is provided in the inner cavity, and the adjustment mechanism includes a slidably arranged connecting plate, and a resist shaft and an elastic member are respectively provided on both sides of the connecting plate. The resist shaft is located in the adsorption hole, and the end of the resist shaft extends out of the resist plate.

[0012] In a preferred embodiment, a limiting rod is fixedly arranged on the connecting plate, a limiting groove is provided on the inner wall of the inner cavity, and the limiting rod is slidably arranged in the limiting groove.

[0013] In a preferred embodiment, a moving mechanism is provided on the transfer rack, and the moving mechanism includes a column, and a plurality of abutment plates are slidably arranged on the side of the column, a mounting plate is rotatably arranged on the column, a driving member is installed on the mounting plate, and a support plate is installed on the output end of the driving member, and a top plate is installed on the plurality of abutment plates, and the height of the top plate is higher than the support plate.

[0014] In a preferred embodiment, a fixing plate is fixedly disposed on the conveying component, and an end of the fixing plate is fixedly connected to the mounting plate.

[0015] In a preferred embodiment, a plurality of side grooves are provided on the outer side of the column, a plurality of abutment plates are slidably arranged in the corresponding side grooves, and a buffer is arranged in the side groove, and the buffer is used to buffer when the abutment plates are reset.

[0016] In a preferred embodiment, a driving shaft 1 is installed at the bottom of the column, and the driving shaft 1 is used to drive the column to rotate.

[0017] The beneficial effects of the present invention are: The present invention can transfer products from conveying component one to conveying component two through a transfer mechanism and a fixing mechanism, and after the transfer, the products can be kept in a straightened state, and the labels of the products can be adjusted to face the side of conveying component two, so as to facilitate subsequent scanning and identification of the labels. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 .

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the transfer mechanism of the present invention.

[0020] Figure 3 It is a schematic cross-sectional structure diagram of the abutment plate of the present invention.

[0021] Figure 4 It is a schematic diagram of the working state of the fixing component 1 of the present invention.

[0022] Figure 5 It is a schematic structural diagram of the fixing component 2 of the present invention.

[0023] Figure 6 It is a structural schematic diagram of the regulating mechanism of the present invention.

[0024] Figure 7 It is a schematic diagram of the working state of the regulating mechanism of the present invention.

[0025] Figure 8 The three-dimensional structure of the present invention is shown in FIG. Figure 2 .

[0026] Fig. 9 It is a three-dimensional structural schematic diagram of the moving mechanism of the present invention.

[0027] Fig.10 for Fig. 9 A magnified view of the structure in the middle.

[0028] The accompanying drawings are marked as follows: 100, product; 1, conveying mechanism; 11, conveying component one; 12, conveying component two; 2, transfer mechanism; 21, transfer frame; 211, back plate; 22, fixing component one; 221, slide groove; 222, driving shaft two; 223, fixing bar; 224, dial shaft; 225, slide plate; 2251, opening; 226, side plate; 23, driving shaft one; 3, fixing component two; 31, inner cavity; 32, adsorption hole; 33, exhaust pipe; 4, adjustment mechanism; 41, connecting plate; 411, limiting rod; 42, back shaft; 43, elastic member; 5, moving mechanism; 51, column; 52, mounting plate; 53, driving member; 54, support plate; 55, top plate. DETAILED DESCRIPTION

[0029] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0030] Refer to the instruction manual Figures 1 to 4 A fully automatic intelligent logistics transfer system for packaged products, comprising: a conveying mechanism 1, the conveying mechanism 1 comprises a conveying component 11 and a conveying component 2 12, the conveying component 1 11 and the conveying component 2 12 are both used to convey a product 100, and the conveying component 2 12 is used to receive the product 100 conveyed by the conveying component 1 11, a transfer mechanism 2 is arranged between the conveying component 1 11 and the conveying component 2 12, and the transfer mechanism 2 is used to transfer the product 100 from the conveying component 1 11 to the conveying component 2 12; The transfer mechanism 2 includes a rotatable transfer frame 21, and the transfer frame 21 includes a plurality of abutment plates 211. When the conveying component 11 conveys the product 100, the abutment plates 211 are perpendicular to the conveying direction of the conveying component 11 until the product 100 contacts the abutment plates 211. A fixing mechanism is provided on the abutment plate 211 . When the product 100 contacts the abutment plate 211 , the fixing mechanism fixes the product 100 and the abutment plate 211 , and by rotating the transfer rack 21 , the product 100 is transferred to the conveying component 2 12 through adjustment.

[0031] It should be noted that both conveying component 11 and conveying component 2 12 are conveyor belts, and conveying component 11 and conveying component 2 12 are vertically arranged, and the transfer mechanism 2 is arranged between conveying component 11 and conveying component 2 12, and the product 100 conveyed by conveying component 11 is transferred to conveying component 2 12 by the transfer mechanism 2. The number of slide grooves 221 is four, and the transfer frame 21 can be driven to rotate by a motor. The fixing mechanism can be a clamp, and the clamp can be a screw driven by a motor, and two groups of external threads are arranged on the screw, and the two groups of external threads have the same pitch and opposite rotation direction, and the two groups of external threads of the screw are threadedly connected with clamps, and the screw is driven to rotate by the motor, so that under the action of the two groups of external threads, the two clamps are driven to move synchronously in opposite directions to achieve clamping and fixing of the product 100.

[0032] The specific implementation scenario is as follows: first, the product 100 is placed on the conveying component 11 for conveying. During the conveying process of the product 100, a label can be manually attached to the side of the product 100. When the product 100 is conveyed to contact the abutment plate 211, due to the obstruction of the abutment plate 211 and the continuous conveying of the product 100 by the conveying component 11, the side of the product 100 can be fitted with the abutment plate 211, ensuring that the product 100 is in a straightened state when in contact with the abutment plate 211, and then the product 100 is clamped by the clamp, and then The transfer rack 21 is driven by a motor to rotate, thereby rotating the abutment plate 211 in contact with the product 100 so that the abutment plate 211 drives the product 100 to move to the top of the conveying component 12. Finally, the product 100 is released by driving the clamp to realize the direction adjustment and transfer of the product 100. The product 100 can be adjusted so that the label on the product 100 can face the side of the conveying component 12 after transfer, which is convenient for subsequent scanning and identification of the label. At the same time, it can be transferred through it to ensure that the product 100 is in a straightened state when it is transferred to the conveying component 12.

[0033] For further information, please refer to the attached manual. Figure 3 and Figure 4 The fixing mechanism is a fixing component 22, which includes a slide groove 221 opened on the abutment plate 211, a driving shaft 222 is arranged in the slide groove 221, a fixing bar 223 is installed at the output end of the driving shaft 222, a dial shaft 224 is installed on the fixing bar 223, a slide plate 225 is slidably arranged in the slide groove 221, an opening 2251 is opened at the end of the slide plate 225, and the dial shaft 224 is slidably arranged in the opening 2251, and a plurality of abutment plates 211 are fixedly provided with side plates 226, which are used to abut against the side of the product 100.

[0034] It should be noted that the driving shaft 222 can be driven by a motor, and the fixed bar 223 can be driven by the motor to rotate, so that when the fixed bar 223 rotates, the slide plate 225 can be driven to slide in the driving shaft 222 through the shift shaft 224, so that the driving shaft 222 can push the product 100 when sliding, so that the product 100 abuts against the side plate 226, and the product 100 is clamped and fixed by the slide plate 225 and the side plate 226.

[0035] In the above technical scheme, the product 100 is clamped and fixed by a fixing component 22, and then the product 100 is transported. Although it can achieve the clamping and transport of the product 100, since the clamping part of the product 100 is the side of the product 100, and since the label of the product 100 is usually attached to the side of the product 100, after it has been used for a period of time, the contact part of the slide plate 225 and the side plate 226 with the product 100 is easy to be contaminated with impurities or dust in the factory environment, which leads to the impurities on the slide plate 225 and the side plate 226 when fixing the product 100, resulting in the label being contaminated, causing the problem of subsequent scanning and identification failure. For this reason, the present invention also proposes a fixing component 2 3, which fixes the non-label surface of the product 100 on the abutment plate 211 by adsorption, and then transports the product 100 to the conveying component 2 12.

[0036] For details, please refer to the attached manual. Figure 5 The fixing mechanism is a fixing component 23, which includes an inner cavity 31. The inner cavity 31 is opened in the support plate 211. A plurality of adsorption holes 32 are also opened on the support plate 211, and an exhaust pipe 33 is also installed on the support plate 211. The plurality of adsorption holes 32 and the exhaust pipe 33 are all connected to the inner cavity 31, and the end of the exhaust pipe 33 is connected to the exhaust component. The exhaust component absorbs and fixes the product 100 on the support plate 211 through suction.

[0037] It should be noted that the vacuum component is an air pump. When the product 100 contacts the plate 211, suction is generated by the air pump, and suction is generated by suction, so that the product 100 is firmly attached to the plate 211, and then the product 100 is transported. Since the contact surface between the product 100 and the plate 211 is a non-label surface, the label will not be contaminated when the product 100 is fixed.

[0038] In the above technical scheme, when the product 100 is adsorbed and fixed by the fixing component 23, due to the different sizes of the product 100, when the product 100 contacts the abutment plate 211, part of the adsorption holes 32 will leak out and cannot contact the product 100. At this time, when adsorbing by vacuum, the airflow at the adsorption holes 32 will be unstable, causing air resistance and even forming vortices. These vortices not only affect the adsorption effect, but also cause unstable adsorption and fixation of the product 100, thereby causing the product 100 to detach during transportation. For this reason, the present invention also proposes an adjustment mechanism 4, which is used to ensure that the adsorption holes 32 in contact with the product 100 are in a ventilated state when vacuuming.

[0039] For details, please refer to the attached manual. Figure 6 and Figure 7An adjusting mechanism 4 is arranged in the inner cavity 31, and the adjusting mechanism 4 includes a slidably arranged connecting plate 41, and a resisting shaft 42 and an elastic member 43 are respectively arranged on both sides of the connecting plate 41. The resisting shaft 42 is located in the adsorption hole 32, and the end of the resisting shaft 42 extends out of the resisting plate 211. A limiting rod 411 is fixedly arranged on the connecting plate 41, and a limiting groove is provided on the inner wall of the inner cavity 31, and the limiting rod 411 is slidably arranged in the limiting groove.

[0040] It should be noted that the elastic member 43 is a spring. When the product 100 contacts the abutment plate 211, it will squeeze the abutment shaft 42 to move and squeeze the spring through the connecting plate 41 until the product 100 contacts the abutment plate 211. At this time, the adsorption hole 32 of the contact part of the product 100 is in a connected state, and the non-contact part is in a blocked state. Therefore, it can solve the problem of product 100 detaching during transportation due to adsorption and fixation when transporting products 100 of different sizes, thereby affecting the transportation.

[0041] In the above technical solution, if Figure 8 As shown, when the product 100 is transferred to the conveying component 2 12 and conveyed in the direction of the arrow, at this time, the product 100 can be conveyed by fixing it only by contact. However, if the product 100 is conveyed in the direction opposite to the arrow, since the abutment 211 needs to be rotated, during the rotation of the abutment 211, due to the obstruction of the abutment 211 and the continuous conveying of the product 100 by the conveying component 2 12, although the product 100 and the abutment 211 are gradually separated and the product 100 is conveyed, the obstruction and continuous conveying will cause the product 100 to shift, resulting in the product 100 being in a tilted state. If the product 100 is tilted, it will affect the subsequent scanning and identification of the label. For this reason, the present invention also proposes a moving mechanism 5, which is used to lift the abutment 211 to release the obstruction of the product 100 when the product 100 is transferred from the conveying component 11 to the conveying component 2 12, so as to solve the above-mentioned problem.

[0042] For details, please refer to the attached manual. Figures 8 to 10 A moving mechanism 5 is arranged on the transfer frame 21, and the moving mechanism 5 includes a column 51, and a plurality of abutment plates 211 are slidably arranged on the side of the column 51. A mounting plate 52 is rotatably arranged on the column 51, and a driving member 53 is installed on the mounting plate 52. A support plate 54 is installed on the output end of the driving member 53. A top plate 55 is installed on each of the plurality of abutment plates 211, and the height of the top plate 55 is higher than the support plate 54. A fixed plate is fixedly arranged on the conveying component 11, and the end of the fixed plate is fixedly connected to the mounting plate 52. A plurality of side grooves are opened on the outer side of the column 51, and a plurality of abutment plates 211 are slidably arranged in the corresponding side grooves, and a buffer is arranged in the side groove, and the buffer is used to buffer when the abutment plates 211 are reset.

[0043] It should be noted that the driving member 53 is a cylinder, which drives the support plate 54 to move upward, and pushes the top plate 55 through the support plate 54, so that it drives the abutment plate 211 to rise, thereby removing the obstruction to the product 100 to ensure the smooth transportation of the product 100. The buffer member is a spring, so that it can play a buffering and protective role on the abutment plate 211 when the abutment plate 211 is reset.

[0044] For further information, please refer to the attached manual. Figure 2 A driving shaft 23 is installed at the bottom of the column 51, and the driving shaft 23 is used to drive the column 51 to rotate.

[0045] It should be noted that the driving shaft 23 can be driven by a motor, and the motor drives the column 51 to rotate to achieve the transportation of the product 100.

[0046] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A fully automatic intelligent logistics transfer system for packaged products, characterized in that: include: A conveying mechanism (1), the conveying mechanism (1) comprising a conveying component one (11) and a conveying component two (12), the conveying component one (11) and the conveying component two (12) both being used to convey a product (100), and the conveying component two (12) being used to receive the product (100) conveyed by the conveying component one (11), a transfer mechanism (2) being provided between the conveying component one (11) and the conveying component two (12), the transfer mechanism (2) being used to transfer the product (100) from the conveying component one (11) to the conveying component two (12); The transfer mechanism (2) comprises a rotatable transfer frame (21), the transfer frame (21) comprising a plurality of abutment plates (211), and when the conveying component (11) conveys the product (100), the abutment plates (211) are perpendicular to the conveying direction of the conveying component (11) until the product (100) contacts the abutment plates (211); A fixing mechanism is provided on the abutment plate (211). When the product (100) contacts the abutment plate (211), the fixing mechanism fixes the product (100) and the abutment plate (211), and the product (100) is transferred to the second conveying component (12) through the rotation of the transfer rack (21).

2. The fully automatic intelligent logistics transfer system for packaged products according to claim 1, characterized in that: The fixing mechanism is a fixing component 1 (22), the fixing component 1 (22) comprising a slide groove (221) provided on the abutment plate (211), a driving shaft 2 (222) being arranged in the slide groove (221), a fixing bar (223) being installed at the output end of the driving shaft 2 (222), a shifting shaft (224) being installed on the fixing bar (223), a slide plate (225) being slidably arranged in the slide groove (221), an opening (2251) being provided at the end of the slide plate (225), and the shifting shaft (224) being slidably arranged in the opening (2251).

3. The fully automatic intelligent logistics transfer system for packaged products according to claim 2, characterized in that: A side plate (226) is fixedly disposed on each of the plurality of abutment plates (211), and the side plate (226) is used to abut against a side edge of the product (100).

4. The fully automatic intelligent logistics transfer system for packaged products according to claim 1, characterized in that: The fixing mechanism is a second fixing component (3), the second fixing component (3) comprising an inner cavity (31), the inner cavity (31) being provided in a support plate (211), the support plate (211) being provided with a plurality of adsorption holes (32), and an exhaust pipe (33) being installed on the support plate (211), the plurality of adsorption holes (32) and the exhaust pipe (33) being connected to the inner cavity (31), and the end of the exhaust pipe (33) being connected to an exhaust component, the exhaust component adsorbs and fixes the product (100) on the support plate (211) by suction.

5. The fully automatic intelligent logistics transfer system for packaged products according to claim 4, characterized in that: An adjustment mechanism (4) is provided in the inner cavity (31), the adjustment mechanism (4) comprising a slidably arranged connecting plate (41), abutment shafts (42) and elastic members (43) being provided on both sides of the connecting plate (41), the abutment shafts (42) being located in the adsorption holes (32), and the ends of the abutment shafts (42) extending out of the abutment plate (211).

6. A fully automatic intelligent logistics transfer system for packaged products according to claim 5, characterized in that: A limiting rod (411) is fixedly arranged on the connecting plate (41), a limiting groove is provided on the inner wall of the inner cavity (31), and the limiting rod (411) is slidably arranged in the limiting groove.

7. A fully automatic intelligent logistics transfer system for packaged products according to claim 3 or 6, characterized in that: The transfer frame (21) is provided with a moving mechanism (5), the moving mechanism (5) comprising a column (51), a plurality of abutment plates (211) slidably arranged on the side of the column (51), a mounting plate (52) rotatably arranged on the column (51), a driving member (53) being mounted on the mounting plate (52), a supporting plate (54) being mounted on the output end of the driving member (53), and a top plate (55) being mounted on the plurality of abutment plates (211), and the height of the top plate (55) is higher than the supporting plate (54).

8. The fully automatic intelligent logistics transfer system for packaged products according to claim 7, characterized in that: A fixing plate is fixedly arranged on the conveying component 1 (11), and an end of the fixing plate is fixedly connected to the mounting plate (52).

9. A fully automatic intelligent logistics transfer system for packaged products according to claim 8, characterized in that: A plurality of side grooves are provided on the outer side of the upright column (51), a plurality of abutment plates (211) are slidably arranged in the corresponding side grooves, and a buffer is arranged in the side groove, the buffer being used to provide buffering when the abutment plates (211) are reset.

10. A fully automatic intelligent logistics transfer system for packaged products according to claim 9, characterized in that: A driving shaft 1 (23) is installed at the bottom of the column (51), and the driving shaft 1 (23) is used to drive the column (51) to rotate.

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