Improved gunny bag rotating machine and using method thereof

Abstract

The invention discloses an improved gunny bag rotating machine which comprises a control device and a conveying device, and further comprises a rack assembly arranged over the conveying device in a crossing mode. The clamping and rotating device is detachably installed on the upper portion in the rack assembly. The rotation driving mechanism is detachably installed on one side of the upper portion of the rack assembly, and the rotation driving mechanism is connected with the frame of the clamping and rotating device through a rotating shaft; wherein the clamping and rotating device and the rotating driving mechanism are both connected with the control equipment; and the automatic centering connecting rod mechanism is arranged below the clamping and rotating device and is used for ensuring that the clamping and rotating device clamps the gunny bag in the conveying direction and is located in the center of the conveying device. The gunny bag rotating machine is simple in structure, novel and reasonable in design, low in manual participation, high in working efficiency and easy to operate, the shape of the gunny bag can be adjusted in the process from unloading to framing, and continuous and stable framing of the gunny bag is guaranteed.

Description

Technical Field

[0001] The present invention relates to a rotating machine and a method for using the same, specifically to an improved bale rotating machine and a method for using the same, mainly for transporting bales in cigarette industrial production equipment, belonging to the technical field of tobacco production and manufacturing. Background Art

[0002] Generally speaking, during the process of cigarette production, tobacco stations in various places usually bale the flue-cured tobacco purchased from farmers for easy transportation and storage. These bales of flue-cured tobacco are then uniformly loaded onto trucks and sent to various re-drying factories. After arriving at the re-drying factory, workers need to manually unload the flue-cured tobacco from the bales, load it into tobacco frames, and then transfer it to the warehouse for storage.

[0003] However, currently, the work of unloading the truck and loading the frames in this process mainly relies on manual operation, and there are the following problems:

[0004] 1. High labor intensity: The process of manual unloading and loading requires a large amount of labor input. Workers need to constantly bend down and lift heavy objects, and long-term repetitive labor easily leads to physical fatigue and injury.

[0005] 2. Low work efficiency: Due to relying on manual operation, the speed of unloading and loading is relatively slow, unable to meet the high-efficiency requirements of large-scale production and logistics.

[0006] 3. Unstable work quality: Human factors may cause errors or negligence during the process of unloading and loading, affecting the quality and production efficiency of flue-cured tobacco.

[0007] After retrieval, the Chinese invention patent with the patent announcement number CN210133672U discloses a bale transfer device, which includes a frame and a clamping mechanism for picking and placing bales, a traveling mechanism, a clamping rotation mechanism, and a position acquisition mechanism. Although the above patent can identify the placement position and direction of bales and intelligently perform operations such as clamping and transferring, the structure is complex, the purchase and maintenance costs are relatively high, and the work efficiency is low, unable to meet the needs of the current tobacco processing field. In short, it is often very inconvenient.

[0008] The Chinese invention patent with the current patent number CN107458887A discloses a jig for a cigarette package unpacking and palletizing robot, including: a frame (I), a flange (1), a support frame (2), a first clamping device (II), and a second clamping device (III). The flange (1) is used to connect with the robot, the support frame (2) is fixedly connected to the flange (1), and the first clamping device (II) and the second clamping device (III) are symmetrically installed side by side on the frame (I) through the flange (1). The structure of the above patent seemingly is the same as that of the present patent application. However, their usage scenarios are different, as well as the purposes and effects to be achieved. The above patent is mainly used to make it possible for a robot to palletize cigarette packages, improving the unpacking and palletizing efficiency of cigarette packages, but it has energy consumption, high costs, and a large floor area. In short, it is often very inconvenient.

[0009] The present patent application does not need to be connected to an external robot for use. Meanwhile, the main objective of the present invention is to realize the adjustment of the bale form during the process of unloading the bale from the vehicle to loading it into the frame and to turn the bale into a certain form according to the requirements of the downstream frame loading equipment, and to complete the transportation to the downstream through the cooperation of the conveying device, thereby ensuring the reliability and stability during downstream frame loading.

[0010] Therefore, the key to solving the above technical problems lies in developing an improved bale rotating machine with high working efficiency and less manual participation and its usage method. Summary of the Invention

[0011] In view of the many defects and deficiencies in the above background technology, the present invention has made improvements and innovations. The purpose is to provide an improved bale rotating machine with a simple structure, novel and reasonable design, which can achieve less manual participation, high working efficiency, and simple operation, and can realize the adjustment of the bale form during the process of unloading the bale from the vehicle to loading it into the frame and ensure the continuous and stable loading of the bale into the frame.

[0012] Another object of the present invention is to be safe and reliable, which can reduce the labor intensity of the staff, improve the working efficiency, and at the same time effectively solve the problems existing in the current cigarette production process, ensuring the production quality and safety, thereby enhancing the overall production efficiency and economic benefits.

[0013] To solve the above problems and achieve the above object of the invention, an improved bale rotating machine and its usage method of the present invention are realized by adopting the following design structure and the following technical solutions:

[0014] As an improvement of an improved bale rotating machine and its usage method of the present invention, it includes a control device and a conveying device (5), and further includes:

[0015] A frame assembly (1), the frame assembly (1) is horizontally arranged directly above the conveying device (5);

[0016] The clamping and rotating device (2) is detachably installed above the inner part of the frame assembly (1);

[0017] The rotation driving mechanism (3) is detachably installed on one side above the frame assembly (1). The rotation driving mechanism (3) is connected to the frame (21) of the clamping and rotating device (2) through a rotating shaft (36);

[0018] Wherein, both the clamping and rotating device (2) and the rotation driving mechanism (3) are connected to the control device; wherein:

[0019] It further includes an automatic centering link mechanism (26). The automatic centering link mechanism (26) is arranged below the clamping and rotating device (2) to ensure that the clamping and rotating device (2) clamps the bale (4) in the conveying direction and is located in the center of the conveying device (5).

[0020] As a further improvement of the present invention, it further includes a rotation starting position detection sensor (14) and a rotation ending position detection sensor (15) arranged on the frame assembly (1). Wherein, both the rotation starting position detection sensor (14) and the rotation ending position detection sensor (15) are connected to the control device.

[0021] As a further improvement of the present invention, the rotation starting position detection sensor (14) is installed on the mounting member (13) on one side of the inner horizontal bar of the connecting frame of the frame (11), and the rotation ending position detection sensor (15) is installed on the mounting member (13) on one side of the outer side of the connecting frame of the frame (11).

[0022] As a further improvement of the present invention, the frame assembly (1) includes:

[0023] The frame (11), the frame (11) includes a connecting frame and legs respectively connected below the four corners of the connecting frame;

[0024] The slewing bearing (12), the slewing bearing (12) is a deep groove ball bearing. The outer ring of the slewing bearing (12) is connected to the frame (11) through bolts, and the inner ring of the slewing bearing (12) is connected to the frame (21) of the clamping and rotating device (2) through bolts;

[0025] Two mounting brackets (13), the two mounting brackets (13) are respectively arranged on one side of the inner horizontal bar of the connecting frame of the frame (11) and on one side of the outer side of the connecting frame of the frame (11). The two mounting brackets (13) are arranged at a 90° angle to the center connection line of the connecting frame of the frame (11).

[0026] As a further improvement of the present invention, the clamping and rotating device (2) includes:

[0027] A frame (21), in the middle of the frame (21), there are three groups of concentric connection holes with different diameters evenly distributed, which are respectively used for connecting the inner ring of the slewing bearing (12), the support shaft (261) of the automatic centering link mechanism (26) and the rotating shaft (36) of the rotary drive mechanism (3);

[0028] Two clamping arms (22), the two clamping arms (22) are located at both ends below the frame (21), and the two clamping arms (22) are both slidably connected between two linear guide rails (23);

[0029] Linear guide rails (23), the linear guide rails (23) are symmetrically arranged on both sides in the length direction of the frame (21);

[0030] Two clamping cylinders (25), the two clamping cylinders (25) are respectively arranged on both sides of the frame (21), and the telescopic rod ends of the two clamping cylinders (25) are arranged oppositely;

[0031] Among them, the two clamping cylinders (25) are both connected to the control device, the telescopic rod ends of each clamping cylinder (25) are both connected to the corresponding clamping arm (22) through a Y-shaped joint (27), and the clamping arm (22) is driven by the connected clamping cylinder (25) to clamp or loosen the bale (4).

[0032] As a further improvement of the above of the present invention, it further includes:

[0033] A first induction plate (24), the first induction plate (24) is arranged above one end of the frame (21);

[0034] A second induction plate (28), the second induction plate (28) is arranged above the connecting piece at the other end of the frame (21);

[0035] A clamping detection sensor (29), the clamping detection sensor (29) is installed on the second induction plate (28), and the clamping detection sensor (29) is connected to the control device.

[0036] Among them, the first induction plate (24) is used to cooperate with the induction rotation end position detection sensor (15) to complete the work, the second induction plate (28) is used to cooperate with the induction rotation start position detection sensor (14) to complete the work; the clamping detection sensor (29) is used to cooperate with the clamping arm connecting plate (221) to complete the work.

[0037] As a further further improvement of the above of the present invention, the clamping arm (22) includes:

[0038] A clamping arm connecting plate (221), on the clamping arm connecting plate (221), there are multiple groups of mounting holes, which are respectively used for fixedly connecting the clamping arm support (222), the slider of the linear guide rail (23) and the first bolt (267) of the automatic centering link mechanism (26);

[0039] The clamping arm support (222), the upper end of the clamping arm support (222) is connected to the clamping arm connecting plate (221), and an inward bending portion is provided on the upper part of the clamping arm support (222);

[0040] The clamping plate (223), the clamping plate (223) is connected to the lower end of the clamping arm support (222), and guide plates are also connected to both ends of the clamping plate (223).

[0041] As a further improvement of the present invention, the rotation driving mechanism (3) includes:

[0042] The rotary cylinder (31), the rotary cylinder (31) is connected to the upper side of the frame (11) through a fixed seat;

[0043] The spherical eye joint (32), one end of the spherical eye joint (32) is connected to the working end of the rotary cylinder (31), and the other end of the spherical eye joint (32) is connected to one end of the swing arm (34) through a locking bolt (33);

[0044] The swing arm (34), the other end of the swing arm (34) is fixedly connected to the rotating shaft (36) through a key;

[0045] The rotating shaft (36), the rotating shaft (36) passes through the hole in the middle of the slewing bearing (12) and is connected to the corresponding connection hole of the frame (21);

[0046] Wherein, a end cover (35) is also connected above the connection part of the swing arm (34) and the rotating shaft (36), and the rotary cylinder (31) is connected to the control device.

[0047] As a further improvement of the present invention, the automatic centering link mechanism (26) is hoisted below the frame (21) through a support shaft (261), and the automatic centering link mechanism (26) includes:

[0048] The support shaft (261), the upper end of the support shaft (261) is connected to the frame (21), and the lower end of the support shaft (261) is connected to the crank arm (262) through a bearing (264) and a locking component;

[0049] The crank arm (262), both ends of the crank arm (262) are connected to the spherical plain bearings (265) at one end of the corresponding link (263) through the second bolts (268);

[0050] The link (263), the links (263) are symmetrically arranged at both ends of the crank arm (262), and spherical plain bearings (265) are connected to both ends of the links (263);

[0051] Wherein, the spherical plain bearing (265) at the other end of the link (263) is connected to the corresponding clamping arm connecting plate (221) through a spacer sleeve (266) and a first bolt (267).

[0052] As a further improvement of the above of the present invention, a method for using an improved bale rotating machine, the method comprising the following steps:

[0053] First, under the control preset of the control device, the conveying device (5) conveys the bale (4) to a designated position and then stops stably. The control device controls the clamping cylinder (25) on the clamping and rotating device (2) to drive the two end clamping arms (22) to move towards the center. The automatic centering link mechanism (26) on the clamping and rotating device (2) controls the two end clamping arms (22) to travel equidistantly, so as to ensure that bales (4) in various forms are straightened and centered;

[0054] Then, within a specified time, if the clamping arm connecting plate (221) does not reach the clamping detection sensor (29), that is, the clamping detection sensor (29) does not detect a signal, it means that the long direction of the bale (4) is clamped. The control device controls the clamping cylinder (25) to drive the two end clamping arms (22) to open outwards, and the conveying device (5) continues to convey the bale (4) downstream;

[0055] Secondly, if the clamping detection sensor (29) detects a signal, it means that the short direction of the bale (4) is clamped. At this time, the control device controls the rotating cylinder (31) to drive the clamping and rotating device (2) to rotate 90°. When the rotation end position detection sensor (15) detects a signal, the control device controls the clamping cylinder (25) to drive the two end clamping arms (22) to open outwards to the limit. Then, the control device controls the rotating cylinder (31) to drive the clamping and rotating device (2) to rotate back 90°;

[0056] Finally, when the rotation start position detection sensor (14) detects a signal, the control device sends a command signal to the conveying device (5) to continue conveying the bale (4) downstream; when the next bale (4) reaches the designated position of the conveying device (5), the system enters the next working cycle.

[0057] The working principle is: Before using an improved bale rotating machine and its using method with the above design structure, the operator only needs to manually or by means of corresponding handling equipment carry the bale rotating machine with the design structure of the present invention to a designated working position and place it for use.

[0058] When in use, start the present invention to start running. During operation, first, under the control preset of the control device, the conveying device (5) conveys the bale (4) to a designated position and then stops stably. The control device controls the clamping cylinder (25) on the clamping and rotating device (2) to drive the two end clamping arms (22) to move towards the center. The automatic centering link mechanism (26) on the clamping and rotating device (2) controls the two end clamping arms (22) to travel equidistantly, so as to ensure that bales (4) in various forms are straightened and centered;

[0059] Then, within a specified time, if the clamping arm connecting plate (221) of the clamping and rotating device (2) does not reach the clamping detection sensor (29), that is, the clamping detection sensor (29) does not detect a signal, it indicates that the bale (4) is clamped in the long direction. The control device controls the clamping cylinder (25) to drive the two end clamping arms (22) to open outward, and the conveying device (5) continues to convey the bale (4) downstream;

[0060] Immediately afterwards, if the clamping detection sensor (29) detects a signal, it indicates that the bale (4) is clamped in the short direction. At this time, the control device controls the rotating cylinder (31) to drive the clamping and rotating device (2) to rotate 90°. When the rotation end position detection sensor (15) detects a signal, the control device controls the clamping cylinder (25) to drive the two end clamping arms (22) to open outward to the limit. Then, the control device controls the rotating cylinder (31) to drive the clamping and rotating device (2) to rotate back 90°;

[0061] Finally, when the rotation start position detection sensor (14) detects a signal, the control device sends a command signal to the conveying device (5) to continue conveying the bale (4) downstream; when the next bale (4) reaches the designated position of the conveying device (5), the system enters the next working cycle until the corresponding work of the present invention is completed. As time goes by, when it is necessary to stop using the bale rotating machine after the work is completed, the operator only needs to control the control device of the present invention to stop it. At the same time, clean and repair each component of the present invention for the next cycle of turnover use.

[0062] The beneficial effects of the present invention compared with the prior art are as follows:

[0063] 1. The present invention is ingeniously designed, simple in structure and easy to control, and can realize the adjustment of the bale shape during the process of unloading the bale from the vehicle to loading it into the frame and ensure the continuous and stable loading of the bale into the frame;

[0064] 2. The present invention can turn the bale into a certain shape (long direction or wide direction) according to the requirements of the downstream framing equipment and convey it downstream, so as to ensure reliable and stable downstream framing;

[0065] 3. The automatic centering link mechanism of the present invention can balance the asynchrony of the two side clamping cylinders and at the same time adjust the bale to the centered position to ensure the reliability of framing;

[0066] 4. The clamping detection sensor provided on the clamping and rotating device of the present invention can adapt to bales of different sizes by adjusting its installation position, and can judge the shape of the bale (long direction or wide direction) only through it, which is economical, energy-saving and effective and reliable;

[0067] 5. The rotation of the clamping and rotating device of the present invention is realized by using a cylinder, and the starting and ending positions are fixed and reliable;

[0068] 6. The present invention is safe and reliable, can reduce the labor intensity of workers, improve work efficiency, and at the same time effectively solve the problems existing in the current cigarette production process, ensure production quality and safety, thereby enhancing the overall production efficiency and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] The following further describes in detail the specific embodiments of the present invention with reference to the drawings, where:

[0070] Figure 1 is one of the usage state diagrams of the present invention;

[0071] Figure 2 is the second usage state diagram of the present invention;

[0072] Figure 3 is the third usage state diagram of the present invention;

[0073] Figure 4 is the fourth usage state diagram of the present invention;

[0074] Figure 5 is the fifth usage state diagram of the present invention;

[0075] Figure 6 is the sixth usage state diagram of the present invention;

[0076] Figure 7 is one of the overall structure diagrams of the present invention;

[0077] Figure 8 is the second overall structure diagram of the present invention;

[0078] Figure 9 is the front view of the present invention;

[0079] Figure 10 is the left view of the present invention;

[0080] Figure 11 is the bottom view of the present invention;

[0081] Figure 12 is one of the structure diagrams of the clamping and rotating device (2) component of the present invention;

[0082] Figure 13 is the second structure diagram of the clamping and rotating device (2) component of the present invention;

[0083] Figure 14 is the exploded structure diagram of the automatic centering link mechanism (26) component of the present invention;

[0084] Figure 15 is the exploded structure diagram of the rotary drive mechanism (3) component of the present invention;

[0085] Figure 16 is the pneumatic schematic diagram of the present invention;

[0086] Among them, the reference numerals in the figure: 1 - frame assembly, 11 - frame, 12 - slewing bearing, 13 - mounting bracket, 14 - rotation start position detection sensor, 15 - rotation end position detection sensor;

[0087] 2 - clamping and rotating device, 21 - frame, 22 - clamping arm, 221 - clamping arm connecting plate, 222 - clamping arm support, 223 - clamping plate, 23 - linear guide rail, 24 - first induction plate, 25 - clamping cylinder, 26 - automatic centering link mechanism, 261 - support shaft, 262 - crank arm, 263 - connecting rod, 264 - bearing, 265 - spherical plain bearing, 266 - spacer sleeve, 267 - first bolt, 268 - second bolt, 27 - Y-shaped joint, 28 - second induction plate, 29 - clamping detection sensor;

[0088] 3 - rotation drive mechanism, 31 - rotation cylinder, 32 - ball eye joint, 33 - locking bolt, 34 - swing arm, 35 - end cover, 36 - rotating shaft;

[0089] 4 - bale;

[0090] 5 - conveying device. Specific embodiments

[0091] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the technical solutions of the present invention will be further described in more detail below in conjunction with the drawings and specific embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and embodiments.

[0092] As shown in the attached drawings of the specification Figure 1 to the attached drawings of the specification Figure 16 An improved bale rotating machine shown, includes a control device and a conveying device 5, and further includes:

[0093] A frame assembly 1, the frame assembly 1 is horizontally arranged directly above the conveying device 5;

[0094] A clamping and rotating device 2, the clamping and rotating device 2 is detachably installed above the inner part of the frame assembly 1;

[0095] A rotation drive mechanism 3, the rotation drive mechanism 3 is detachably installed on one side above the frame assembly 1, and the rotation drive mechanism 3 is connected to the frame 21 of the clamping and rotating device 2 through a rotating shaft 36;

[0096] Among them, both the clamping and rotating device 2 and the rotation drive mechanism 3 are connected to the control device; among them:

[0097] It further includes an automatic centering link mechanism 26. The automatic centering link mechanism 26 is arranged below the clamping and rotating device 2 to ensure that the clamping and rotating device 2 clamps the bale 4 in the conveying direction and is located exactly in the middle of the conveying device 5.

[0098] In the present invention, the conveying device 5 is a belt conveyor; the control device is a prior art device, which can be a programmable logic controller and a PLC, or a PC, or any other intelligent control device that can be purchased on the market and can control the operation of this bale rotating machine and complete the corresponding functions.

[0099] Furthermore, as Figure 8 shown, it further includes a rotation start position detection sensor 14 and a rotation end position detection sensor 15 arranged on the frame assembly 1. Among them, both the rotation start position detection sensor 14 and the rotation end position detection sensor 15 are connected to the control device.

[0100] Furthermore, the rotation start position detection sensor 14 is installed on the mounting member 13 on one side of the inner crossbar of the connecting frame of the frame 11, and the rotation end position detection sensor 15 is installed on the mounting member 13 on one side of the outer side of the connecting frame of the frame 11.

[0101] In the present invention, the rotation start position detection sensor 14 and the rotation end position detection sensor 15 are used to monitor the arrival conditions of the two extreme positions when the clamping and rotating device 2 makes a 90° rotary motion.

[0102] Furthermore, as Figures 7 to 9 shown, the frame assembly 1 includes:

[0103] A frame 11, which includes a connecting frame and legs respectively connected below the four corners of the connecting frame;

[0104] A slewing bearing 12, which is a special deep groove ball bearing. The outer ring of the slewing bearing 12 is connected to the frame 11 by bolts, and the inner ring of the slewing bearing 12 is connected to the frame 21 of the clamping and rotating device 2 by bolts;

[0105] Two mounting brackets 13, which are respectively arranged on one side of the inner crossbar of the connecting frame of the frame 11 and on one side of the outer side of the connecting frame of the frame 11, and the central connection lines of the two mounting brackets 13 and the connecting frame of the frame 11 are arranged at 90°.

[0106] Furthermore, as Figure 8 and Figure 9 as well as Figure 11 shown, the clamping and rotating device 2 includes:

[0107] The frame 21 has three groups of concentric connecting holes with different diameters evenly distributed in the middle, which are respectively used to connect the inner ring of the slewing bearing 12, the support shaft 261 of the automatic centering link mechanism 26, and the rotating shaft 36 of the rotary drive mechanism 3;

[0108] Two clamping arms 22 are located at both ends below the frame 21, and both clamping arms 22 are slidably connected between two linear guide rails 23;

[0109] The linear guide rails 23 are symmetrically arranged on both sides in the length direction of the frame 21;

[0110] Two clamping cylinders 25 are respectively arranged on both sides of the frame 21, and the telescopic rod ends of the two clamping cylinders 25 are arranged oppositely;

[0111] Among them, both clamping cylinders 25 are connected to the control device, and the telescopic rod ends of each clamping cylinder 25 are respectively connected to the corresponding clamping arm 22 through a Y-shaped joint 27. The clamping arm 22 is driven by the connected clamping cylinder 25 to clamp or loosen the bale 4.

[0112] Specifically, as shown in the accompanying drawings of the specification Figures 11 to 14 shown, it further includes:

[0113] The first induction plate 24 is arranged above one end of the frame 21;

[0114] The second induction plate 28 is arranged above the connecting piece at the other end of the frame 21;

[0115] The clamping detection sensor 29 is installed on the second induction plate 28, and the clamping detection sensor 29 is connected to the control device.

[0116] Among them, the first induction plate 24 is used to cooperate with the induction rotation end position detection sensor 15 to complete the work, and the second induction plate 28 is used to cooperate with the induction rotation start position detection sensor 14 to complete the work; the clamping detection sensor 29 is used to cooperate with the clamping arm connecting plate 221 to complete the work.

[0117] In the present invention, the clamping detection sensor 29 is used to detect whether a preset condition is triggered when the clamping device 2 clamps, so as to send a corresponding instruction to the control device.

[0118] More specifically, as shown in the accompanying drawings of the specification Figure 13 and the accompanying drawings of the specification Figure 14 shown, the clamping arm 22 includes:

[0119] The clamping arm connecting plate 221 is provided with multiple groups of mounting holes, which are respectively used to fixedly connect the clamping arm support 222, the slider of the linear guide rail 23, and the first bolt 267 of the automatic centering link mechanism 26;

[0120] The clamping arm support 222, the upper end of the clamping arm support 222 is connected to the clamping arm connecting plate 221, and the upper part of the clamping arm support 222 is provided with an inward bending part;

[0121] The clamping plate 223, the clamping plate 223 is connected to the lower end of the clamping arm support 222, and guide plates are also connected to both ends of the clamping plate 223.

[0122] In the present invention, the upper part of the clamping arm support 222 is provided with a certain bending arc shape to make room for the conveyance of the bale 4 in the width and height directions; the clamping plate 223 is an integral rectangular plate structure, and guide plates with a certain bending angle are integrally formed or fixedly connected to both ends of the clamping plate 223 to guide the incoming bale 4 to a certain extent, and at the same time, the flat plate surface corrects the skewed bale 4 during clamping.

[0123] Furthermore, as Figure 15 shown, the rotary drive mechanism 3 includes:

[0124] The rotary cylinder 31, the rotary cylinder 31 is connected to the upper side of the frame 11 through a fixed seat;

[0125] The spherical eye joint 32, one end of the spherical eye joint 32 is connected to the working end of the rotary cylinder 31, and the other end of the spherical eye joint 32 is connected to one end of the swing arm 34 through a locking bolt 33;

[0126] The swing arm 34, the other end of the swing arm 34 is fixedly connected to the rotating shaft 36 through a key;

[0127] The rotating shaft 36, the rotating shaft 36 passes through the hole in the middle of the slewing bearing 12 and is connected to the corresponding connection hole of the frame 21;

[0128] Wherein, an end cover 35 is further connected above the connection part of the swing arm 34 and the rotating shaft 36, and the rotary cylinder 31 is connected to the control device.

[0129] In the present invention, the rotary cylinder 31 is used to drive the clamping and rotating device 2 to rotate 90° clockwise or counterclockwise, thereby driving the bale 4 to rotate on the belt surface of the conveying device 5.

[0130] Specifically, as shown in the attached Figure 13 and the attached Figure 14 of the specification, the automatic centering link mechanism 26 is hoisted below the frame 21 through the support shaft 261, and the automatic centering link mechanism 26 includes:

[0131] The support shaft 261, the upper end of the support shaft 261 is connected to the frame 21, and the lower end of the support shaft 261 is connected to the crank arm 262 through a bearing 264 and a locking assembly;

[0132] The swing arm 262 has both ends connected to the spherical plain bearings 265 at one end of the corresponding connecting rod 263 through the second bolts 268;

[0133] The connecting rod 263 is symmetrically arranged at both ends of the swing arm 262, and spherical plain bearings 265 are connected to both ends of the connecting rod 263;

[0134] Among them, the spherical plain bearing 265 at the other end of the connecting rod 263 is connected to the corresponding clamp arm connecting plate 221 through a spacer sleeve 266 and a first bolt 267.

[0135] In the present invention, the locking assembly includes bolts, nuts, circlips and washers.

[0136] In summary, a more specific embodiment of the present invention is as follows:

[0137] During use, as shown in the attached Figure 13 to the attached Figure 16 of the specification, when an improved bale rotating machine with the above design structure is in use, the operator only needs to manually or by means of a corresponding handling device transport the present invention to a designated working position for installation and use.

[0138] During use, first, corresponding information is preset in the control device in advance. Under the control and preset action of the control device, the conveying device 5 transports the bale 4 to a designated position and stops stably. The control device controls the clamping cylinder 25 on the clamping and rotating device 2 to drive the two ends of the clamp arms 22 to move towards the center. The automatic centering connecting rod mechanism 26 on the clamping and rotating device 2 controls the two ends of the clamp arms 22 to travel equidistantly, so as to ensure that bales 4 of various shapes are straightened and centered;

[0139] Then, within a specified time, if the clamp arm connecting plate 221 does not reach the clamping detection sensor 29, that is, the clamping detection sensor 29 does not detect a signal, it means that the long direction of the bale 4 is clamped. The control device controls the clamping cylinder 25 to drive the two ends of the clamp arms 22 to open outwards, and the conveying device 5 continues to transport the bale 4 downstream;

[0140] Secondly, if the clamping detection sensor 29 detects a signal, it means that the short direction of the bale 4 is clamped. At this time, the control device controls the rotating cylinder 31 to drive the clamping and rotating device 2 to rotate 90°. When the rotation end position detection sensor 15 detects a signal, the control device controls the clamping cylinder 25 to drive the two ends of the clamp arms 22 to open outwards to the limit. Then, the control device controls the rotating cylinder 31 to drive the clamping and rotating device 2 to rotate back 90°;

[0141] Finally, when the rotation start position detection sensor 14 detects a signal, the control device sends a command signal to the conveying device 5 to continue transporting the bale 4 downstream; when the next bale 4 reaches the designated position of the conveying device 5, the system enters the next working cycle.

[0142] During the above entire implementation operation process, the frame assembly 1, the frame assembly 1 includes: a frame 11, a slewing bearing 12, a mounting bracket 13, a rotation start position detection sensor 14, and a rotation end position detection sensor 15;

[0143] The frame 11 is composed of a connecting frame at the top and legs welded at the four corners. There is a through hole in the center of the connecting frame at the top, and a group of concentrically and evenly distributed mounting holes are arranged around the through hole for connecting the slewing bearing 12. The frame 11 is horizontally arranged directly above the conveying device 5 to support the entire mechanism;

[0144] The slewing bearing 12 is a special deep groove ball bearing. Its outer ring is installed below the top frame of the frame 11 through bolts, and its inner ring is connected to the frame 21 of the clamping and rotating device 2 through bolts. Its function is: to firmly connect the clamping and rotating device 2 to the frame assembly 1, and at the same time ensure that the rotation drive mechanism 3 can smoothly drive the clamping and rotating device 2 to rotate;

[0145] Two mounting brackets 13 are respectively arranged on one side of the inner crossbar of the connecting frame of the frame 11 and on one side of the outer side of the connecting frame of the frame 11. The two mounting positions form a 90° angle with the center connection line of the connecting frame of the frame 11;

[0146] The rotation start position detection sensor 14 and the rotation end position detection sensor 15 are respectively installed on the mounting bracket 13;

[0147] The clamping and rotating device 2 includes: a frame 21, a clamping arm 22, a linear guide 23, a first induction plate 24, a clamping cylinder 25, an automatic centering link mechanism 26, a Y-shaped joint 27, a second induction plate 28, and a clamping detection sensor 29;

[0148] There is a through hole in the center of the frame 21. Around the through hole, three groups of concentrically arranged connecting holes with different diameters are evenly distributed for connecting the inner ring of the slewing bearing 12, the support shaft 261 of the automatic centering link mechanism 26, and the rotating shaft 36 of the rotation drive mechanism 3 respectively;

[0149] The clamping arm 22 includes: a clamping arm connecting plate 221, a clamping arm support 222, and a clamping plate 223;

[0150] The clamping arm connecting plate 221 is provided with multiple groups of mounting holes for respectively fixing and connecting the clamping arm support 222, the slider of the linear guide 23, and the first bolt 267 of the automatic centering link mechanism 26;

[0151] The upper end of the clamping arm support 222 is connected to the clamping arm connecting plate 221, and the lower end is connected to the clamping plate 223. And the upper part of the clamping arm support 222 is provided with a certain bending arc shape to make way for the space for the conveyance of the bale 4 in both the width and height directions;

[0152] The splint 223 is a rectangular plate structure as a whole. At both ends of the splint 223, there are guide plates integrally formed or fixedly connected with a certain bending angle, which are used to guide the incoming bale 4 to a certain extent. At the same time, when clamping, the flat plate surface corrects the skewed bale 4.

[0153] The linear guide rails 23 are symmetrically arranged on both sides of the frame 21 in the length direction. The guide rails are connected to the frame 21, and the sliders are connected to the clamping arms 22. Its function is to ensure the smooth sliding of the two clamping arms 22 under the frame 21.

[0154] The first induction plate 24 is arranged above one end of the frame 21 and is used to cooperate with the rotation end position detection sensor 15 to detect whether the clamping and rotating device 2 rotates in place.

[0155] The clamping cylinders 25, two clamping cylinders 25 are respectively arranged on both sides of the frame 21, and the telescopic rod ends of the two clamping cylinders 25 are arranged oppositely; the tail of the cylinder body of the clamping cylinder 25 is connected to the frame 21 through a fixed seat, and the piston rod end is connected to the corresponding clamping arm 22 through a Y-shaped joint 27; the corresponding air inlets of the two clamping cylinders 25 are connected in parallel and controlled by a two-position five-way solenoid valve to ensure the synchronization of the two cylinders. At the same time, a pressure reducing valve is provided at the front end of the air inlet of the two-position five-way solenoid valve to adjust the clamping force, and a one-way throttle valve is provided at the front end of the air inlet of the clamping cylinder 25 to adjust the clamping speed.

[0156] The automatic centering link mechanism 26 includes: a support shaft 261, a crank arm 262, a connecting rod 263, a bearing 264, a spherical plain bearing 265, a spacer 266, a first bolt 267, and a second bolt 268.

[0157] The support shaft 261, the upper end of the support shaft 261 is connected to the frame 21, and the lower end of the support shaft 261 is connected to the crank arm 262 through a bearing 264 and a locking component.

[0158] The crank arm 262, both ends of the crank arm 262 are connected to the spherical plain bearing 265 at one end of the corresponding connecting rod 263 through a second bolt 268.

[0159] The connecting rod 263, the connecting rods 263 are symmetrically arranged at both ends of the crank arm 262, and both ends of the connecting rod 263 are connected with spherical plain bearings 265.

[0160] Among them, the spherical plain bearing 265 at the other end of the connecting rod 263 is connected to the corresponding clamping arm connecting plate 221 through a spacer 266 and a first bolt 267.

[0161] The main function of the automatic centering link mechanism 26 is that when the two clamping cylinders 25 drive the clamping arms 22 to clamp the bale 4, if there may be asynchronism in the cylinders or the resistance received due to the skew of the bale is inconsistent, the automatic centering link mechanism 26 can correct this deviation, so that the two end clamping arms 22 always travel at equal distances, thus ensuring that bales 4 in various forms are straightened and centered;

[0162] The Y-shaped joint 27 is used to connect the clamping cylinder 25 and the clamping arm 22;

[0163] The second induction plate 28 is arranged above the middle part of the frame 21, and is used to cooperate with the rotation start position detection sensor 14 to detect whether the clamping and rotating device 2 rotates in place; at the same time, it is also the mounting plate of the clamping detection sensor 29;

[0164] The clamping detection sensor 29 is installed on the second induction plate 28 and is used to cooperate with the clamping arm connecting plate 221 to detect whether the clamping arm 22 travels in place;

[0165] The rotation driving mechanism 3 includes: a rotation cylinder 31, a spherical eye joint 32, a locking bolt 33, a rotating arm 34, an end cover 35, and a rotating shaft 36;

[0166] The tail of the cylinder body of the rotation cylinder 31 is connected to the upper side of one side of the frame 11 through a fixed seat, and the piston rod end is connected to the rotating arm 34 through the spherical eye joint 32 and the locking bolt 33. The rotation cylinder 31 is controlled by a two-position five-way solenoid valve, and a one-way throttle valve is provided at the front end of the air inlet of the rotation cylinder 31 to adjust the clamping speed;

[0167] One end of the spherical eye joint 32 is connected to the working end of the rotation cylinder 31, and the other end of the spherical eye joint 32 is connected to one end of the rotating arm 34 through the locking bolt 33;

[0168] The other end of the rotating arm 34 is fixedly connected to the rotating shaft 36 through a key;

[0169] The end cover 35 is connected to one end of the rotating shaft 36 through bolts to limit the axial movement of the rotating arm 34 on the rotating shaft 36;

[0170] The rotating shaft 36 passes through the hole in the middle of the slewing bearing 12 and is connected to the frame 21;

[0171] The function of the rotation driving mechanism 3 is to drive the rotating arm 34 to swing through the rotation cylinder 31, so that the frame 21 is driven to rotate by the rotating shaft 36. By adjusting and calculating the stroke of the rotation cylinder 31, the length and installation position of the rotating arm 34, it can be ensured that the clamping and rotating device 2 just rotates 90°;

[0172] In summary, the core hub of the entire invention is the frame 21 on the clamping and rotating device 2, which is hoisted below the center of the frame assembly 1 through the slewing support 12. The slewing support 12 is a special deep groove ball bearing, which not only provides downward support for the frame 21 but also enables the frame 21 to rotate freely in the horizontal direction;

[0173] Above it is connected to the rotating shaft 36 of the rotation driving mechanism 3. The rotating cylinder 31 drives the rotating shaft 36 through the rotating arm 34, thereby driving the frame 21 to rotate;

[0174] Below it is connected to the support shaft 261 of the automatic centering link mechanism 26; the lower end of the support shaft 261 is connected to the crank arm 262 through the bearing 264 and the locking assembly. The automatic centering link mechanism 26 is connected to the two end clamping arms 22 through the crank arm 262 and the link 263, so that the two end clamping arms 22 always travel equidistantly relative to the center of the frame 21, thus ensuring that bales 4 of various shapes are straightened and centered;

[0175] Below it is also connected to the guide rail part of the linear guide 23. The tail of the cylinder body of the clamping cylinder 25 is also connected thereto through the fixed seat. The two clamping arms 22 are connected through the slider part of the linear guide 23, and the two clamping arms 22 are connected through the piston rod end of the clamping cylinder 25; thus, it can be ensured that the clamping cylinder 25 drives the two clamping arms 22 to travel smoothly relative to the frame 21.

[0176] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not a limitation of the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes. However, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution content of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An improved sack rotating machine, comprising a control device and a conveying device (5), characterized in that: Also includes: A frame assembly (1), the frame assembly (1) is arranged across and directly above the conveying device (5); A clamping and rotating device (2), the clamping and rotating device (2) is detachably mounted on the upper part of the frame assembly (1); A rotating drive mechanism (3), the rotating drive mechanism (3) is detachably mounted on one side above the frame assembly (1), and the rotating drive mechanism (3) is connected to the frame (21) of the clamping and rotating device (2) via a rotating shaft (36); The clamping and rotating device (2) and the rotating driving mechanism (3) are both connected to the control device; wherein: It also includes an automatic centering connecting rod mechanism (26), which is arranged below the clamping and rotating device (2) to ensure that the clamping and rotating device (2) clamps the sack (4) in the conveying direction and is located in the center of the conveying device (5).

2. An improved burlap rotating machine according to claim 1, characterized in that: It also comprises a rotation start position detection sensor (14) and a rotation end position detection sensor (15) arranged on the frame assembly (1), wherein the rotation start position detection sensor (14) and the rotation end position detection sensor (15) are both connected to the control device.

3. An improved burlap rotating machine according to claim 2, characterized in that: The rotation start position detection sensor (14) is mounted on a mounting piece (13) on one side of the internal crosspiece of the frame (11) connecting the frame; and the rotation end position detection sensor (15) is mounted on a mounting piece (13) on one side of the outer side of the frame (11) connecting the frame.

4. An improved burlap rotating machine according to claim 1, characterized in that: The frame assembly (1) comprises: A frame (11), the frame (11) comprising a connecting frame and supporting legs respectively connected to the bottom of four corners of the connecting frame; A slewing support (12), wherein the slewing support (12) is a deep groove ball bearing, the outer ring of the slewing support (12) is connected to the frame (11) by bolts, and the inner ring of the slewing support (12) is connected to the frame (21) of the clamping device (2) by bolts; Two mounting frames (13) are respectively arranged on one side of the inner cross piece of the frame (11) connecting frame and one side of the outer side of the frame (11) connecting frame, and the two mounting frames (13) are arranged at 90 degrees with the center line of the frame (11) connecting frame.

5. An improved burlap rotating machine according to claim 1, characterized in that: The clamping and rotating device (2) comprises: A frame (21), wherein the middle of the frame (21) is provided with three groups of concentric connection holes of different diameters and evenly distributed, which are respectively used to connect the inner ring of the slewing support (12), the support shaft (261) of the automatic centering connecting rod mechanism (26) and the rotating shaft (36) of the rotating drive mechanism (3); Two clamping arms (22), the two clamping arms (22) are located at two ends below the frame (21), and the two clamping arms (22) are slidably connected between two linear guide rails (23); Linear guide rails (23), the linear guide rails (23) are symmetrically arranged on both sides of the frame (21) in the length direction; Two clamping cylinders (25), the two clamping cylinders (25) are respectively arranged on both sides of the frame (21), and the telescopic rod ends of the two clamping cylinders (25) are arranged opposite to each other; The two clamping cylinders (25) are connected to the control device, and the telescopic rod end of each clamping cylinder (25) is connected to the clamping arm (22) at the corresponding end through a Y-shaped joint (27). The clamping arm (22) is driven by the clamping cylinder (25) connected thereto to clamp or release the sack (4).

6. An improved burlap rotating machine according to claim 5, characterized in that: Also includes: A first sensing plate (24), the first sensing plate (24) being arranged above one end of the frame (21); A second sensing plate (28), the second sensing plate (28) is arranged above the connecting piece at the other end of the frame (21); A clamping detection sensor (29), the clamping detection sensor (29) is mounted on the second sensing plate (28), and the clamping detection sensor (29) is connected to the control device. The first sensing plate (24) is used to work in conjunction with the sensing rotation end position detection sensor (15), and the second sensing plate (28) is used to work in conjunction with the sensing rotation start position detection sensor (14); the clamping detection sensor (29) is used to work in conjunction with the clamping arm connecting plate (221).

7. An improved bale rotating machine according to claim 5, characterized in that: The clamp arm (22) comprises: A clamp arm connecting plate (221), wherein a plurality of mounting holes are provided on the clamp arm connecting plate (221), which are used to fix the slider of the clamp arm support (222) and the linear guide rail (23) and the first bolt (267) of the automatic centering connecting rod mechanism (26); A clamp arm support (222), the upper end of the clamp arm support (222) is connected to the clamp arm connecting plate (221), and the upper part of the clamp arm support (222) is provided with an inward bending portion; The clamping plate (223) is connected to the lower end of the clamping arm support (222), and the two ends of the clamping plate (223) are also connected to guide plates.

8. An improved burlap rotating machine according to claim 1, characterized in that: The rotary drive mechanism (3) comprises: A rotary cylinder (31), the rotary cylinder (31) is connected to one side of the upper part of the frame (11) through a fixed seat; A fisheye joint (32), one end of the fisheye joint (32) is connected to the working end of the rotary cylinder (31), and the other end of the fisheye joint (32) is connected to one end of the rotating arm (34) through a locking bolt (33); A rotating arm (34), the other end of which is fixedly connected to a rotating shaft (36) via a key; A rotating shaft (36), the rotating shaft (36) passes through a hole in the middle of the slewing support (12) and is connected to a corresponding connecting hole of the frame (21); An end cover (35) is also connected above the connection between the rotating arm (34) and the rotating shaft (36), and the rotating cylinder (31) is connected to the control device.

9. An improved burlap rotating machine according to claim 2, characterized in that: The automatic centering connecting rod mechanism (26) is hoisted below the frame (21) via a support shaft (261), and the automatic centering connecting rod mechanism (26) comprises: A support shaft (261), the upper end of the support shaft (261) is connected to the frame (21), and the lower end of the support shaft (261) is connected to the crank arm (262) through a bearing (264) and a locking assembly; A crank arm (262), both ends of the crank arm (262) are connected to the joint bearing (265) at one end of the corresponding connecting rod (263) through a second bolt (268); A connecting rod (263), the connecting rod (263) is symmetrically arranged at both ends of the crank arm (262), and both ends of the connecting rod (263) are connected to joint bearings (265); The joint bearing (265) at the other end of the connecting rod (263) is connected to the corresponding clamping arm connecting plate (221) through a spacer sleeve (266) and a first bolt (267).

10. A method for using an improved sack rotating machine, characterized in that: The method comprises the following steps: First, under the control preset of the control device, the conveying device (5) conveys the sack (4) to the designated position and then stops, the control device controls the clamping cylinder (25) on the clamping and rotating device (2) to drive the clamping arms (22) at both ends to move toward the center, and the automatic centering connecting rod mechanism (26) on the clamping and rotating device (2) controls the clamping arms (22) at both ends to move equidistantly, thereby ensuring that sacks (4) of various shapes are guided and centered; Then, if the clamping arm connecting plate (221) of the clamping and rotating device (2) does not reach the clamping detection sensor (29) within a specified time, that is, the clamping detection sensor (29) does not detect a signal, it means that the sack (4) is clamped in the long direction, and the control device controls the clamping cylinder (25) to drive the clamping arms (22) at both ends to open outward, and the conveying device (5) continues to convey the sack (4) downstream; Secondly, if the clamping detection sensor (29) detects a signal, it means that the short direction of the sack (4) is clamped. At this time, the control device controls the rotating cylinder (31) to drive the clamping device (2) to rotate 90°. When the rotation end position detection sensor (15) detects a signal, the control device controls the clamping cylinder (25) to drive the clamping arms (22) at both ends to open outward to the limit. Then, the control device controls the rotating cylinder (31) to drive the clamping device (2) to rotate 90°. Finally, the rotation start position detection sensor (14) detects a signal, and the control device sends a command signal to the conveying device (5) to continue conveying the sack (4) downstream; when the next sack (4) reaches the specified position of the conveying device (5), the system enters the next working cycle.

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