An ultra-heavy bending machine and a heavy and long workpiece automatic stacking device and a use method

Abstract

The application discloses a heavy and long workpiece automatic stacking device special for an ultra-heavy bending machine, which comprises a side discharging mechanism, a side discharging mechanism is used for the lateral discharging of the heavy and long workpiece; a stacking rack is installed on one side of the bottom of the side discharging mechanism; a stacking assembly is installed on one side of the side discharging mechanism and located on one side of the top of the stacking rack, and the stacking assembly comprises a stacking driving unit, a stacking turnover frame and a discharging rack; the stacking driving unit drives the stacking turnover frame to overturn and convey the heavy and long workpiece into the stacking rack, and the heavy and long workpiece will not fall off from the stacking turnover frame in the overturning and conveying process; and the discharging rack is used for separating the heavy and long workpiece from the stacking turnover frame and into the stacking rack. The application further discloses a use method of the automatic stacking device and a bending machine applied to the automatic stacking device. The fast and accurate stacking of the workpiece is realized, and the application has important significance for improving the production efficiency and product quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic stacking of super-heavy bending workpieces, in particular to a super-heavy bending machine and a special automatic stacking device for heavy and long workpieces, which realizes the storage and stacking of various U-shaped workpieces in a low-cost, simple and time-saving manner. BACKGROUND

[0002] With the increasing demand for bending machines to process wide, long and heavy workpieces, the market demand for super-heavy bending machines is also increasing, and how to solve the above problems has become a top priority.

[0003] In practical applications, super-heavy bending machines inevitably process large workpieces of more than 6 meters. Because these workpieces are often large in size, they will be stuck between the upper and lower dies after bending, and can only be discharged from the side, so such workpieces will involve the intervention of a side discharge device.

[0004] The existing conventional side discharge device on the market Figure 1 As shown, the workpiece is pushed out from the side by the side discharge device after bending, and then collected after being pushed away from the side of the lower die of the bending machine by a certain distance. Usually, the workpiece on the side discharge device is lifted away by a crane, and then the next workpiece can be processed, which is time-consuming and labor-intensive and has low production efficiency. SUMMARY

[0005] The technical problem to be solved by the present application is how to use the simplest structure and the smallest cost to achieve the side discharge and storage of heavy and long workpieces and to maximize the number of workpieces stored in a single lifting operation.

[0006] In order to solve the above technical problems, the inventors have summarized the technical solutions of the present application through practice, which are as follows:

[0007] A special automatic stacking device for heavy and long workpieces of a super-heavy bending machine, comprising:

[0008] A side discharge mechanism for lateral discharge of heavy and long workpieces;

[0009] A stacking rack installed on one side of the bottom of the side discharge mechanism;

[0010] A stacking assembly installed on one side of the side discharge mechanism and located on one side of the top of the stacking rack, comprising a stacking drive unit, a stacking turnover frame and a discharge rack, the stacking drive unit drives the stacking turnover frame to overturn and convey the heavy and long workpiece into the stacking rack, and the heavy and long workpiece will not fall off the stacking turnover frame during the overturning and conveying process, and the discharge rack is used to separate the heavy and long workpiece from the stacking turnover frame into the stacking rack.

[0011] Preferably, the coding drive unit includes a motor and a reducer, which are installed on the side discharging mechanism. A rotating shaft is installed at the output end of the reducer, and the rotating shaft is installed on the unloading rack through a bearing seat. The coding turning rack is fixedly installed on the rotating shaft.

[0012] Preferably, the material stacking and turning frame includes a carrier, and a stopper is installed on the top of the side of the carrier away from the side discharge mechanism. The stopper is higher than the upper surface of the carrier and is used to limit heavy and long workpieces from detaching from the carrier during the turning and conveying process.

[0013] Preferably, a magnetic body is embedded in the stacking and turning frame, and the magnetic body is used to absorb heavy and long workpieces to prevent them from falling off.

[0014] Preferably, the unloading rack is vertically fixed on the stacking rack and is located on a side close to the side discharge mechanism. A top piece is provided on the top of the unloading rack, and the top piece is used to lift heavy and long workpieces off the stacking turning rack.

[0015] Preferably, the stacking rack includes a bottom plate and a material stopping rack, the material stopping rack is fixedly mounted on the bottom plate and is located on a side away from the side discharging mechanism, and the sides of the material stopping rack, the bottom plate and the unloading rack are surrounded to form a stacking area.

[0016] Preferably, the side discharge mechanism includes a side ejection structure, a frame and a guide wheel. The guide wheel is installed on the top of the frame through a bearing seat. The guide wheel includes a rotating body, a front conductor and a rear conductor. The front conductor and the rear conductor are both installed on the rotating body. The front conductor is used to guide the heavy and long workpiece before it is separated from the mold and to assist the workpiece to fall in the stacking direction after it is separated from the mold. The rear conductor is used to transport the heavy and long workpiece along the length direction after it is fallen in the stacking direction.

[0017] Preferably, the outer peripheral surface of the leading body is in a V-shaped structure, and the height of the side away from the stacking direction is greater than the height of the side close to the stacking direction.

[0018] A method for using an automatic stacking device for heavy and long workpieces specially designed for an ultra-heavy bending machine, the steps are as follows:

[0019] Step 1: Side exit of workpiece

[0020] After the workpiece bending action is completed, the lateral ejection structure ejects the heavy and long workpiece laterally and puts it onto the leading conductor. The leading conductor acts on the heavy and long workpiece to move horizontally along the length direction of the mold until it leaves the mold;

[0021] Step 2: Workpiece dumping

[0022] After the heavy and long workpiece leaves the mold, it tilts toward the stacking direction. The rear conductor prevents the heavy and long workpiece from directly acting on the carrier. The side ejection structure pushes the tilted heavy and long workpiece to the set position and stops the external ejection action.

[0023] Step three: workpiece overturning conveying

[0024] The code material driving unit rotates around the rotation shaft towards the side of the code pile rack, holds the workpiece and slides to the blocking piece position under the action of gravity, and then stops; the magnetic body can attract the heavy long workpiece to prevent it from falling off;

[0025] Step four: external top unloading

[0026] When the carrier with the workpiece rotates to the specified code pile unloading position, the workpiece will be separated from the blocking piece and the carrier under the blocking action of the top piece, and then falls along the side wall of the unloading rack into the code pile rack, and then is lifted away together with the lifting device after several pieces of code pile.

[0027] A super-heavy bending machine comprises the automatic code pile device as described above.

[0028] Compared with the prior art, the present application has the following beneficial effects:

[0029] The automatic code pile device for heavy long workpieces of the super-heavy bending machine has obvious advantages. The lateral discharge code material mode is adopted, and the cooperation of the lateral ejection structure and the guide wheel realizes the rapid and accurate discharge of the workpiece, and prepares for the subsequent code material work. At the same time, during the discharging process, the workpiece can smoothly separate from the mold and fall in the code material direction, further improving the efficiency and accuracy of the code material.

[0030] During the code material process, the code material overturning frame plays a key role. Through its rotation, the workpiece can slide down along the upper surface of the carrier to the blocking piece under the action of gravity, realizing the regularity of the workpiece. At the same time, the design of the magnetic body can effectively prevent the workpiece from separating from the carrier during the overturning process, ensuring the stability and safety of the code material process.

[0031] Finally, the top piece on the unloading rack can top off the workpiece from the carrier and the blocking piece, and falls along the side wall of the unloading rack into the code pile rack, thereby completing the entire automatic code pile action. This design not only shortens the operation cycle, greatly improves the operation efficiency, but also saves manpower and material resources, and reduces production cost.

[0032] In summary, the automatic code pile device for heavy long workpieces of the super-heavy bending machine realizes the rapid and accurate code pile of the workpiece through its unique lateral discharge code material mode and ingenious code material and unloading mechanism design, which is of great significance for improving production efficiency and product quality. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 A structural schematic diagram of a traditional market lateral discharge device;

[0034] Figure 2Structure schematic diagram of automatic stacking device of the present application;

[0035] Figure 3 Structure top view of automatic stacking device of the present application;

[0036] Figure 4 Structure side view of automatic stacking device of the present application;

[0037] Figure 5 Structure side view of automatic stacking device of the present application after mold is separated;

[0038] Figure 6 Structure side view of automatic stacking device of the present application after mold is separated;

[0039] Figure 7 Structure side view of automatic stacking device of the present application when workpiece is unloaded;

[0040] Figure 8 Structure side view of automatic stacking device of the present application when workpiece is unloaded;

[0041] Figure 9 Structure top view of automatic stacking device of the present application when workpiece is unloaded;

[0042] Figure 10 Structure front view of automatic stacking device of the present application when workpiece is unloaded;

[0043] Figure 11 Structure front view of automatic stacking device of the present application when workpiece is unloaded;

[0044] In the figure: 10, stacking rack; 101, bottom plate; 102, material blocking rack;

[0045] 20, stacking assembly; 21, stacking driving unit; 211, motor; 212, speed reducer; 213, rotating shaft; 22, stacking overturning frame; 221, bearing body; 222, blocking piece; 223, magnetic attraction body; 224, top piece; 23, unloading frame;

[0046] 30, side material discharging mechanism; 31, side top-out structure; 32, frame body; 33, guide wheel; 331, rotating body; 332, front guide body; 333, rear guide body. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.

[0048] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0049] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Figure 4

[0050] A heavy and long workpiece automatic stacking device special for super heavy bending machine, comprising:

[0051] A side discharge mechanism 30 is used for lateral discharge of the heavy and long workpiece, and tilts towards the stacking direction after the heavy and long workpiece is separated from the mold, as shown in Figure 5

[0052] A stacking rack 10 is installed on one side of the bottom of the side discharge mechanism 30, and is used for regularizing the U-shaped workpiece with the opening area downward;

[0053] A stacking assembly 20 is installed on one side of the side discharge mechanism 30 and located on one side of the top of the stacking rack 10, and is used for turning the opening area of the workpiece horizontally towards downward, preparing for the stacking action. The specific structure of the stacking assembly 20 comprises a stacking driving unit 21, a stacking turnover frame 22 and a discharging frame 23. The stacking driving unit 21 drives the stacking turnover frame 22 to overturn and convey the heavy and long workpiece into the stacking rack 10, and the heavy and long workpiece will not fall off from the stacking turnover frame 22 during the overturning and conveying process. The discharging frame 23 is used for separating the heavy and long workpiece from the stacking turnover frame 22 into the stacking rack 10.

[0054] As shown in Figures 2 to 7 After the bending action is completed, the heavy and long workpiece is discharged from the side by the side discharge mechanism 30, and after the discharge is completed, the heavy and long workpiece automatically tilts, so that the top opening area of the workpiece is in a horizontal state towards the stacking direction. The opening area of the workpiece is set downward by the turnover driving unit 21 driving the stacking turnover frame 22, and after the workpiece contacts the discharging frame 23, it continues to deflect, and the workpiece will automatically fall off and be automatically stacked in the stacking rack 10. When the stacking reaches a set number, it is lifted away by the lifting device. This design not only shortens the operation cycle, greatly improves the operation efficiency, but also saves manpower and material resources, and reduces production cost.

[0055] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Figure 9 ​​As shown, in order to prevent heavy and long workpieces from falling off the material turning rack 22 during the turning and conveying process, a magnetic body 223 is embedded on the material turning rack 22. The magnetic body 223 is used to absorb the heavy and long workpieces and prevent them from falling off. The magnetic body 223 is made of strong magnetic material.

[0056] Example 3, based on the above example, Figure 9 、 10 As shown, the material stacking drive unit 21 includes a motor 211 and a reducer 212. The motor 211 and the reducer 212 are installed on the side discharge mechanism 30. The output end of the reducer 212 is installed with a rotating shaft 213. The rotating shaft 213 is installed on the discharge frame 23 through a bearing seat. The material stacking turning frame 22 is fixedly mounted on the rotating shaft 213. The motor 211 drives the reducer 212 to rotate, thereby driving the rotating shaft 213 to rotate the material stacking turning frame 22.

[0057] Example 4, based on the above examples, Figures 4 to 10 As shown, the stacking and turning frame 22 includes a carrier 221. A stopper 222 is bolted to the top of the carrier 221, away from the side discharge mechanism 30. The stopper 222 is higher than the upper surface of the carrier 221 and is used to prevent heavy and long workpieces from escaping from the carrier 221 during the turning and conveying process. The stopper 222 is used to regularize one end of the workpiece opening area and cooperates with a magnetic body 223 (embedded in the carrier 221 and located near the stopper 222) to attract the workpiece to the carrier 221.

[0058] Example 5, based on the above examples, Figures 4 to 7 As shown, the unloading rack 23 is vertically fixed to the stacking rack 10 and is located on a side near the side discharge mechanism 30. A top member 224 is provided on the top of the unloading rack 23. There are at least two sets of top members 224, one above the other, and they are used to lift heavy and long workpieces off the stacking and turning rack 22. When the workpiece is in a vertical position, the top members 224 contact the side of the workpiece. As the carrier 221 continues to rotate, the workpiece, under the action of the top members 224, separates from the carrier 221 and the stopper 222, and falls freely along the side wall of the unloading rack 23, completing the automatic stacking action within the stacking rack 10.

[0059] Example 6. Based on the above examples, the stacking rack 10 includes a base plate 101 and a material stopping rack 102. The material stopping rack 102 is fixedly mounted on the base plate 101 and is located on a side away from the side discharging mechanism 30. The side of the material stopping rack 102, the base plate 101 and the unloading rack 23 are surrounded by a stacking area.

[0060] The side discharge mechanism 30 includes a side ejection structure 31, a frame body 32, and a guide wheel 33. The guide wheel 33 is installed on the top of the frame body 32 through a bearing seat. The guide wheel 33 includes a rotating body 331, a front guide body 332, and a rear guide body 333. The front guide body 332 and the rear guide body 333 are both installed on the rotating body 331. The front guide body 332 is used for guiding and assisting the heavy long workpiece to tilt in the stacking direction after being separated from the mold. The rear guide body 333 is used for conveying the heavy long workpiece in the length direction after the heavy long workpiece tilts in the stacking direction. After the workpiece tilts, it lies on the rear guide body 333 and the front guide body 332. After being ejected to a predetermined position by the side discharge mechanism 30, the workpiece is automatically stacked towards the stacking area under the action of the stacking assembly 20.

[0061] The use method of the automatic stacking device for heavy long workpieces of the super-heavy bending machine is as follows:

[0062] Step one: workpiece side discharge

[0063] After the workpiece bending action is completed, the heavy long workpiece is ejected to the front guide body 332 by the side ejection structure 31. The front guide body 332 moves the heavy long workpiece in the length direction of the mold until the heavy long workpiece is separated from the mold.

[0064] Step two: workpiece tilting

[0065] After the heavy long workpiece is separated from the mold, it tilts towards one side of the stacking direction. The rear guide body 333 prevents the heavy long workpiece from directly acting on the carrier 221. After the tilted heavy long workpiece is ejected to a set position by the side ejection structure 31, the ejection action is stopped.

[0066] Step three: workpiece overturning and conveying

[0067] The stacking drive unit 21 rotates the carrier 221 around the rotating shaft 213 to the side close to the stacking rack 10. The carrier 221 holds the workpiece and slides to the position of the blocking piece 222 under the action of gravity and then stops. The magnetic body 223 adsorbs the heavy long workpiece to prevent it from falling off.

[0068] Step four: ejection and unloading

[0069] When the carrier 221 with the workpiece rotates to the specified stacking and unloading position, the workpiece is separated from the blocking piece 222 and the carrier 221 under the blocking action of the top piece 224 as the carrier 221 continues to rotate. The workpiece falls into the stacking rack 10 along the side wall of the unloading rack 23. After a plurality of workpieces are stacked, they are lifted away by the lifting device.

[0070] A super-heavy bending machine includes the automatic stacking device described in the above embodiments.

[0071] The present application adopts a lateral discharging and stacking mode, and a lateral ejection structure is used for lateral discharging of heavy long workpieces. A guide wheel is used for horizontal discharging, and after the discharging is separated from the mold, it is tilted to the stacking direction as a stacking preparation. After the discharging reaches a predetermined position, the stacking turnover frame rotates the heavy long workpiece to slide along the upper surface of the carrier to the blocking piece under the action of gravity, for regularizing the heavy long workpiece, and cooperating with the magnetic attraction body to limit the heavy long workpiece from separating from the carrier during the turnover process. With the continuous turnover, the top piece on the unloading frame will lift the heavy long workpiece from the carrier and the blocking piece, and the heavy long workpiece will fall along the side wall of the unloading frame, completing the automatic stacking action in the stacking frame, shortening the operation cycle, greatly improving the operation efficiency and saving manpower and resources.

[0072] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. The substitution can be a substitution of part of the structure, device, method step, or a complete technical solution. According to the technical solution and the inventive concept of the present application, equivalent substitution or change should be covered within the protection scope of the present application.

Claims

1. An automatic stacking device for heavy and long workpieces specially used for ultra-heavy bending machines, characterized in that: include: A side discharge mechanism (30), the side discharge mechanism (30) is used for side discharge of heavy and long workpieces; A stacking rack (10) is installed on one side of the bottom of the side discharge mechanism (30); A stacking assembly (20) is installed on one side of the side discharge mechanism (30) and is located on the top of one side of the stacking rack (10), comprising a stacking drive unit (21), a stacking turn frame (22) and a discharge rack (23), wherein the stacking drive unit (21) drives the stacking turn frame (22) to turn over and transport the heavy and long workpieces into the stacking rack (10), and the heavy and long workpieces will not fall from the stacking turn frame (22) during the turning and transporting process, and the discharge rack (23) is used to detach the heavy and long workpieces from the stacking turn frame (22) into the stacking rack (10); The side discharge mechanism (30) comprises a side ejection structure (31), a frame (32) and a guide wheel (33), wherein the guide wheel (33) is mounted on the top of the frame (32) via a bearing seat, and the guide wheel (33) comprises a rotating body (331), a front conductor (332) and a rear conductor (333), wherein both the front conductor (332) and the rear conductor (333) are mounted on the rotating body (331), the front conductor (332) is used for guiding the heavy and long workpiece before it leaves the mold and for assisting the heavy and long workpiece to fall in the stacking direction after it leaves the mold, and the rear conductor (333) is used for conveying the heavy and long workpiece in the length direction after it falls in the stacking direction; The outer peripheral surface of the leading conductor (332) is a V-shaped structure, and the height of the side away from the stacking direction is greater than the height of the side close to the stacking direction.

2. The automatic stacking device for heavy and long workpieces specially used for ultra-heavy bending machines according to claim 1 is characterized in that: The stacking drive unit (21) comprises a motor (211) and a reducer (212), the motor (211) and the reducer (212) being mounted on the side discharge mechanism (30), a rotating shaft (213) being mounted on the output end of the reducer (212), the rotating shaft (213) being mounted on the discharge rack (23) via a bearing seat, and the stacking turning rack (22) being fixedly mounted on the rotating shaft (213).

3. The automatic stacking device for heavy and long workpieces specially used for super heavy-duty bending machines according to claim 1 is characterized in that: The stacking and turning frame (22) comprises a carrier (221), a stopper (222) being mounted on the top of a side of the carrier (221) away from the side discharge mechanism (30), the stopper (222) being higher than the upper surface of the carrier (221) and being used to prevent heavy and long workpieces from escaping from the carrier (221) during the turning and conveying process.

4. The automatic stacking device for heavy and long workpieces specially used for super heavy-duty bending machines according to claim 1 is characterized in that: A magnetic body (223) is embedded in the stacking and turning frame (22), and the magnetic body (223) is used to absorb heavy and long workpieces to prevent them from falling off.

5. The automatic stacking device for heavy and long workpieces specially used for super heavy-duty bending machines according to claim 1 is characterized in that: The unloading rack (23) is vertically fixed on the stacking rack (10) and is located on a side close to the side discharge mechanism (30). A top piece (224) is provided on the top of the unloading rack (23). The top piece (224) is used to lift heavy and long workpieces off the stacking turning rack (22).

6. The automatic stacking device for heavy and long workpieces specially used for super heavy-duty bending machines according to claim 1 is characterized in that: The stacking rack (10) comprises a bottom plate (101) and a material stopper (102). The material stopper (102) is fixedly mounted on the bottom plate (101) and is located on a side away from the side discharge mechanism (30). The side portions of the material stopper (102), the bottom plate (101) and the discharge rack (23) are surrounded to form a stacking area.

7. A method for using an automatic stacking device for heavy and long workpieces specially used for an ultra-heavy bending machine, which refers to the automatic stacking device for heavy and long workpieces specially used for an ultra-heavy bending machine according to any one of claims 1 to 6, characterized in that: Here are the steps: Step 1: Side exit of workpiece After the workpiece bending action is completed, the lateral ejection structure (31) ejects the heavy and long workpiece laterally and places it on the front conductor (332). The front conductor (332) acts on the heavy and long workpiece to move horizontally along the length direction of the mold until it leaves the mold; Step 2: Workpiece dumping After the heavy and long workpiece is separated from the mold, it tilts toward the side of the stacking direction. The rear conductor (333) prevents the heavy and long workpiece from directly acting on the carrier (221). After the side ejection structure (31) pushes the tilted heavy and long workpiece to the set position, the external ejection action is stopped. Step 3: Workpiece flipping and conveying The stacking drive unit (21) causes the carrier (221) to rotate around the rotation axis (213) toward the side close to the stacking rack (10), holding the heavy and long workpiece and sliding to the stopper (222) under the action of gravity and then stopping. The magnetic body (223) absorbs the heavy and long workpiece to prevent it from falling off. Step 4: Unloading from the top When the carrier (221) rotates with the heavy and long workpiece to the designated stacking and dropping position, as the carrier (221) continues to rotate, the workpiece will be detached from the stopper (222) and the carrier (221) under the obstruction of the top member (224), and the workpiece will fall along the side wall of the unloading rack (23) into the stacking rack (10). After stacking several pieces, the workpiece is lifted away together by the lifting device.

8. An ultra-heavy-duty bending machine, comprising the automatic palletizing device according to any one of claims 1 to 6.

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