A full-automatic production line for oil removal and stacking of bent sheet metal parts

Abstract

The present application belongs to the technical field of sheet metal processing, and particularly relates to a full-automatic production line for oil removal and stacking of bent sheet metal parts, characterized in that the full-automatic production line comprises an oil removal and drying unit and a stacking unit; the oil removal and drying unit comprises an oil removal and drying oven, the oil removal and drying oven comprises a box body, a material conveying mechanism is arranged in the box body, a material inlet and a material outlet are formed in the box body, the front end of the material conveying mechanism is communicated with the material outlet, the rear end of the material conveying mechanism is communicated with the material inlet, and the material outlet is communicated with the stacking unit through a third conveying mechanism; the stacking unit comprises a sheet metal turnover mechanism and a material receiving and stacking mechanism, the sheet metal turnover mechanism is located on one side of the third conveying mechanism, and the material receiving and stacking mechanism is arranged below the sheet metal turnover mechanism. The present application can automatically remove oil and stack bent sheet metal parts, effectively improve production efficiency, and reduce environmental pollution.

Description

Technical Field

[0001] This invention belongs to the field of sheet metal processing technology, specifically relating to a fully automated production line for degreasing and stacking bent sheet metal parts. Background Technology

[0002] Sheet metal processing can be defined as a comprehensive cold working process for thin metal sheets (usually less than 6mm thick), including shearing, punching / cutting / combined cutting, bending, riveting, splicing, and forming. Its significant characteristic is that the thickness of the same part is consistent. Metal sheet processing is called sheet metal fabrication, and it can be used to make car bodies, chimneys, kitchen cabinets, junction boxes, ventilation ducts, and so on. In sheet metal fabrication, L-shaped bent sheet metal parts are very common. Due to their uneven shape, stacking and other processes often require manual handling, stacking, and arranging the sheet metal parts before sending them to the next process, which greatly reduces production efficiency and increases labor costs and the risk of accidents.

[0003] Furthermore, sheet metal parts require oiling during production to improve rust resistance. After processing, a thick layer of grease inevitably adheres to the surface of the sheet metal parts. If not cleaned promptly, this will cause the sheet metal parts to attract more iron filings, affecting subsequent processes. Current technology involves cleaning and removing grease from sheet metal parts after batch processing using spray cleaning agents or high-pressure water washing. This method is not only complex and inefficient, but the discharge of oil dissolved in the cleaning agents also pollutes the environment, hindering ecological development. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a fully automated production line for degreasing and stacking bent sheet metal parts, which can degrease and dry bent sheet metal parts and automatically stack them.

[0005] The technical solution adopted by this invention to solve its technical problem is: a fully automatic production line for degreasing and palletizing bent sheet metal parts, characterized in that: it includes a degreasing and drying unit and a palletizing unit; the degreasing and drying unit includes a degreasing oven, the degreasing oven includes a box body, a material conveying mechanism is provided inside the box body, two or more sets of brackets are evenly arranged on the material conveying mechanism, each set of brackets includes a first bracket and a second bracket arranged opposite to each other; the box body has a material inlet and a material outlet, the front end of the material conveying mechanism is connected to the material outlet and the rear end is connected to the material inlet, and the material outlet is connected to the palletizing unit through a third conveying mechanism;

[0006] The palletizing unit includes a sheet metal flipping mechanism and a receiving and palletizing mechanism. The sheet metal flipping mechanism is located on one side of the third conveying mechanism. The sheet metal flipping mechanism includes a rotating shaft and two or more flipping plates. The flipping plates are distributed circumferentially on the rotating shaft. Each flipping plate is connected to the rotating shaft axially. The working angle between two adjacent flipping plates is an acute angle. The rotating shaft is parallel to the third conveying mechanism and is connected to the first rotating drive mechanism. The receiving and palletizing mechanism is located below the sheet metal flipping mechanism. The receiving and palletizing mechanism includes a first receiving plate and a second receiving plate parallel to the rotating shaft. The first receiving plate and the second receiving plate are set at an angle, and the angle is located at the lower end of the receiving and palletizing mechanism.

[0007] Furthermore, the box is equipped with two or more sets of material conveying mechanisms, and adjacent sets of material conveying mechanisms are connected end to end by a material transfer mechanism.

[0008] Furthermore, the material conveying mechanism conveys materials vertically, with two adjacent sets of material conveying mechanisms arranged side by side and conveying in opposite directions, and the material transfer mechanism connects the two adjacent sets of material conveying mechanisms horizontally.

[0009] Furthermore, the material conveying mechanism includes a first conveying section and a second conveying section arranged side by side. The first conveying section and the second conveying section synchronously circulate and convey materials in a vertical direction. The first conveying section is provided with two or more sets of first brackets, and the second conveying section is provided with two or more sets of second brackets. The first conveying section and the second conveying section are respectively connected to a second rotary drive mechanism.

[0010] Furthermore, the material transfer mechanism includes a material feeding plate, which is connected to a lateral moving mechanism. The lateral moving mechanism drives the material feeding plate to circulate back and forth between two adjacent sets of material conveying mechanisms.

[0011] Furthermore, there are two or more receiving and stacking mechanisms, which are connected to a displacement drive mechanism.

[0012] Furthermore, there are two receiving and stacking mechanisms, namely the first receiving and stacking mechanism and the second receiving and stacking mechanism. The first receiving and stacking mechanism and the second receiving and stacking mechanism are connected to the same displacement drive mechanism. The displacement drive mechanism drives the first receiving and stacking mechanism and the second receiving and stacking mechanism to alternately be located below the sheet metal flipping mechanism.

[0013] Furthermore, the material inlet is connected to a material sorting unit via a second conveying mechanism. The material sorting unit includes a first conveying mechanism, which includes at least two sets of first conveyor belts arranged side by side. There is a gap between two adjacent sets of first conveyor belts. A lifting plate is provided in the gap. The lifting plate is connected to a third rotary drive mechanism, which can drive the lifting plate to rotate from bottom to top in the gap. The lifting plate includes a vertical lifting plate and a horizontal lifting plate. A stop is provided at the end of the horizontal lifting plate. The second conveying mechanism is located below the lifting plate, and the conveying direction of the second conveying mechanism is perpendicular to the conveying direction of the first conveying mechanism.

[0014] Furthermore, the second conveying mechanism is equipped with a receiving component, which is located below the lifting plate, and the top of the receiving component is lower than the conveying end face of the second conveying mechanism.

[0015] Furthermore, it also includes a stacking and conveying unit, which includes a stacking clamping mechanism and a stacking conveying mechanism. The stacking clamping mechanism is connected to a lifting drive mechanism and a second reciprocating drive mechanism. The stacking clamping mechanism can reciprocate between the receiving and stacking mechanism and the stacking conveying mechanism.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This invention includes an oil removal and drying unit and a stacking unit. The oil removal and drying unit includes a material conveying mechanism installed inside the housing. After the bent sheet metal parts enter the oil removal and drying unit, they move inside the housing along with the material conveying mechanism. During operation, the sheet metal parts are fully baked, and the grease on their surface is completely evaporated and then extracted, greatly improving the oil removal effect and efficiency of the sheet metal parts and reducing environmental pollution. After the sheet metal parts are degreased, they enter the stacking unit through a third conveying mechanism. The stacking unit includes a sheet metal flipping mechanism and a receiving stacking mechanism. The sheet metal flipping mechanism is located on one side of the third conveying mechanism, and the receiving stacking mechanism is located below the sheet metal flipping mechanism. After the bent sheet metal parts are flipped by the flipping mechanism, they are naturally stacked on the receiving stacking mechanism, realizing fully automatic stacking, greatly improving the production efficiency of bent sheet metal parts and reducing labor costs.

[0018] 2. Because the box is equipped with two or more material conveying mechanisms, and the adjacent two material conveying mechanisms are connected end to end by a material transfer mechanism, the running path of the sheet metal parts in the box is further extended, so that the baking of the sheet metal parts is more thorough and complete.

[0019] 3. Since the material conveying mechanism conveys in a vertical direction, and two adjacent sets of material conveying mechanisms are set up side by side with opposite conveying directions, the sheet metal parts follow the material conveying device to move up and down in the vertical direction. This can make full use of the height space while ensuring sufficient drying effect, effectively reducing the equipment's footprint and better meeting the needs of actual production.

[0020] 4. Since there are two or more receiving and stacking mechanisms, the receiving and stacking mechanisms are connected to the displacement drive mechanism. The displacement drive mechanism can drive multiple receiving and stacking mechanisms to alternately be located below the sheet metal flipping mechanism. Multiple receiving and stacking mechanisms can alternately perform continuous receiving and stacking, avoiding the downtime of the sheet metal conveying mechanism and further improving the conveying and stacking efficiency of sheet metal parts.

[0021] 5. Since the material inlet is connected to the material sorting unit through the second conveying mechanism, the material sorting unit includes the first conveying mechanism. A lifting plate is set in the gap between two adjacent first conveyor belts. The lifting plate rotates from bottom to top in the gap. The second conveying mechanism is located below the lifting plate. The conveying direction of the second conveying mechanism is perpendicular to the conveying direction of the first conveying mechanism. After the bent sheet metal parts pass through the material sorting unit, they fall onto the second conveying mechanism and then enter the degreasing oven through the second conveying mechanism. This realizes the automatic sorting of the bent sheet metal parts, which can stabilize the flipping direction of the sheet metal parts and turn them upside down to form a uniform direction. This brings great convenience to the subsequent degreasing process and improves the automation level of the production line.

[0022] 6. Because the second conveying mechanism is equipped with a receiving component, which is located below the lifting plate and whose top end is lower than the conveying end face of the second conveying mechanism, the receiving component does not affect the normal conveying of sheet metal parts by the second conveying mechanism, but also supports and buffers the falling sheet metal parts, avoiding huge impacts from the sheet metal parts on the second conveying mechanism. This extends the service life of the second conveying mechanism and improves the stability of the sheet metal parts conveying process.

[0023] 7. Since it also includes a stacking and conveying unit, which includes a stacking clamping mechanism and a stacking conveying mechanism, the stacking clamping mechanism is connected to a lifting drive mechanism and a second reciprocating drive mechanism. The stacking clamping mechanism can reciprocate between the receiving and stacking mechanism and the stacking conveying mechanism. When the sheet metal parts are stacked to a certain quantity on the receiving and stacking mechanism, the stacking clamping mechanism can clamp and lift the stacked parts and move them to the stacking conveying mechanism, which further improves the working efficiency and automation of the production line. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of material sorting unit A;

[0026] Figure 3 This is the front view of material sorting unit A;

[0027] Figure 4 This is the front view of the degreasing and drying unit B (the housing is not shown).

[0028] Figure 5 yes Figure 4 Schematic diagram of the E-direction structure;

[0029] Figure 6 yes Figure 4 Schematic diagram of the F-direction structure;

[0030] Figure 7 This is a three-dimensional structural diagram of the palletizing unit C and the pallet conveying unit D;

[0031] Figure 8 yes Figure 7 Schematic diagram of the H-axis structure;

[0032] Figure 9 This is a three-dimensional structural diagram of palletizing unit C. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] In this embodiment, an L-shaped bent sheet metal part is used as an example. Taking the conveying direction of the sheet metal part as a reference, the side facing the conveying direction is the front, and the side opposite to the conveying direction is the rear. The left and right directions are the natural left and right directions when facing the front. The up and down directions are the natural up and down directions in the vertical state.

[0035] like Figure 1 As shown, the present invention provides a fully automated production line for degreasing and palletizing bent sheet metal parts. The production line is equipped with a material sorting unit A, a degreasing and drying unit B, a palletizing unit C, and a pallet conveying unit D.

[0036] like Figure 2 , Figure 3The material handling unit A shown has a first conveying mechanism A1 with a first frame A13. Three sets of first conveyor belts A10 are arranged side-by-side on the first frame A13. The front ends of the three sets of first conveyor belts A10 are connected to a first motor, and their rear ends are connected to a second motor. Positioning the front ends of the first conveyor belts A10 lower than their rear ends allows for smoother conveying of sheet metal parts. Side baffles A14 are provided on the left and right sides of the first conveying mechanism A1 to prevent the sheet metal parts from tilting or falling during conveying. A lifting plate fixing shaft A3 is also connected to the rotating shaft of the first motor A11. Four lifting plates A4 are evenly fixed on the lifting plate fixing shaft A3. There are gaps between adjacent sets of first conveyor belts A10, and the lifting plates A4 are located within these gaps. Four lifting plates A4 are perpendicularly connected to each other, forming a vertical lifting plate A41 and a horizontal lifting plate A42. The horizontal lifting plate A42 is located in front of the vertical lifting plate A41, and a stop block A43 is provided at the end of the horizontal lifting plate A42. The first motor A11 drives the first conveyor belt A10 forward, and at the same time, it can drive the four lifting plates A4 to rotate sequentially from bottom to top within the gap.

[0037] The included angle between the vertical lifting plate A41 and the horizontal lifting plate A42 can be adapted to the bending angle of the sheet metal part, as long as it can support the bent sheet metal part. In this embodiment, the lifting plate A4 is connected to the rotating shaft of the first motor. The lifting plate A4 can also be connected to other power rotation mechanisms. However, connecting the lifting plate A4 to the rotating shaft of the first motor allows the rotation of the lifting plate A4 to be relatively synchronized with the conveying of the first conveyor belt A10, while also saving costs and simplifying the equipment structure.

[0038] A second conveying mechanism A2 is located below the lifting plate A4. The second conveying mechanism A2 includes a second conveyor belt A20 and a third motor that drives the second conveyor belt A20 forward. A receiving mechanism A5 is located at the rear of the second conveyor belt A20, below the lifting plate A4. The receiving mechanism A5 includes a first receiving plate and a second receiving plate, inclined on the left and right sides of the second conveyor belt A20, perpendicular to each other. The included angle between the first and second receiving plates can be adapted to the bending angle of the sheet metal part. To improve the buffering capacity of the receiving plates on the sheet metal part, rubber plates are fixed to the first and second receiving plates respectively. To prevent the receiving plates from affecting the normal conveying of the sheet metal part on the second conveyor belt A20, the top edges of the first and second receiving plates are lower than the conveying end face of the second conveyor belt A20. To improve the stability of the sheet metal part conveying, both the first conveyor belt A10 and the second conveyor belt A20 are round belts.

[0039] like Figures 4-6As shown, the front end of the second conveying mechanism A2 is connected to the oil removal drying chamber of the oil removal drying unit B. The chamber B1 of the oil removal drying chamber is equipped with a material lifting mechanism B2 and a material lowering mechanism B3, arranged side-by-side with the material lowering mechanism B3 located in front of the material lifting mechanism B2. The material lifting mechanism B2 has a first lifting conveying section B21 and a second lifting conveying section B22 arranged side-by-side, synchronously circulating upwards in a vertical direction. Multiple first lifting brackets B210 are evenly arranged on the first lifting conveying section B21, and multiple second lifting brackets B220 are evenly arranged on the second lifting conveying section B22. The first lifting brackets B210 and the second lifting brackets B220 are arranged opposite each other and correspond one-to-one. Both the first lifting conveying section B21 and the second lifting conveying section B22 have two parallel lifting conveyor chains, which are connected to a fourth motor. The material lowering mechanism B3 includes a first lowering conveyor section B31 and a second lowering conveyor section B32 arranged side-by-side. The first lowering conveyor section B31 and the second lowering conveyor section B32 synchronously circulate downwards in a vertical direction. Multiple first lowering brackets B310 are evenly arranged on the first lowering conveyor section B31, and multiple second lowering brackets B320 are evenly arranged on the second lowering conveyor section B32. The first lowering brackets B310 and the second lowering brackets B320 are arranged opposite each other and correspond one-to-one. Both the first lowering conveyor section B31 and the second lowering conveyor section B32 include two lowering conveyor chains arranged side-by-side, and both lowering conveyor chains are connected to a fifth motor.

[0040] The housing B1 has a material inlet and a material outlet. The front end of the second conveying mechanism A2 passes through the material inlet and is located below the material lifting mechanism B2. The second conveyor belt A20 passes through the lower part of the material lifting mechanism B2. The first lifting conveying section B21 and the second lifting conveying section B22 are located on the left and right sides of the second conveyor belt A20, respectively. The second conveying mechanism A2 is equipped with a feeding guide plate A6, which is located behind the material lifting mechanism B2. Its front end is close to the lowest first lifting bracket B210 or the second lifting bracket B220, which can play a good feeding guiding role for sheet metal parts. The rear end of the third conveying mechanism B5 passes through the material outlet and is located below the material lowering mechanism B3. The third conveying mechanism B5 includes a third conveyor belt B50 and a sixth motor (not shown in the figure). The third conveyor belt B50 is connected to the sixth motor. The third conveyor belt B50 passes through the lower part of the material lowering mechanism B3. The first lowering conveying section B31 and the second lowering conveying section B32 are located on the left and right sides of the third conveyor belt B50, respectively. The third conveying mechanism B5 is equipped with a discharge guide plate B7, which is located in front of the material lowering mechanism B3. Its rear end is close to the lowest first lowering bracket B310 or the second lowering bracket B320, providing good discharge guidance for the sheet metal parts. The second conveyor belt A20 and the third conveyor belt B50 are in the same conveying direction. To enhance the stability of the L-shaped sheet metal parts conveying, both the second conveyor belt A20 and the third conveyor belt B50 are round belts. The bent part of the sheet metal parts is mounted on the round belts, and the two sides of the sheet metal parts are located on both sides of the round belts.

[0041] The material lifting mechanism B2 and the material lowering mechanism B3 are interconnected via a material transfer mechanism B8. The material transfer mechanism B8 includes two horizontal conveyor chains B80 arranged side-by-side. These chains are located above and pass sequentially through the material lifting and lowering mechanisms B2 and B3, and are parallel to the second conveyor belt A20 and the third conveyor belt B50. Two or more material guide plates B81 are connected to the outer sides of the two horizontal conveyor chains B80. These plates are evenly distributed on the horizontal conveyor chains B80. The two horizontal conveyor chains B80 are connected to a seventh motor B82, and together they drive the material guide plates B81 to reciprocate between the material lifting mechanism B2 and the material lowering mechanism B3.

[0042] Temporary brackets B9 are respectively installed on the left and right sides of the box B1 below the transverse conveyor chain B80. The temporary brackets B9 are located between the material lifting mechanism B2 and the material lowering mechanism B3. The temporary brackets B9 are located below the material feeding plate B81 and the distance between the temporary brackets B9 and the material feeding plate B81 is less than the height of the sheet metal parts, ensuring that the temporary brackets B9 can play the role of connecting the material lifting mechanism B2 and the material lowering mechanism B3.

[0043] The enclosure B1 is enclosed on all four sides, and a heating device is installed inside the enclosure B1. The top of the enclosure B1 is connected to the fume extraction mechanism. The specific structure and connection relationship of the heating device and the fume extraction mechanism are existing technologies and will not be described in detail in this embodiment.

[0044] like Figures 7-9 As shown, the front end of the third conveying mechanism B5 is connected to the palletizing unit C. A sheet metal flipping mechanism C2 is provided on one side of the third conveying mechanism B5. The sheet metal flipping mechanism C2 includes a rotating shaft C20 and eight flipping plates C21. The flipping plates C21 are evenly distributed on the rotating shaft C20 along its circumference. Each flipping plate C21 is fixed to the rotating shaft C20 along its axial direction. The rotating shaft C20 is parallel to the third conveying mechanism B5 and is connected to an eighth motor. A cuboid pad C22 is fixedly provided on each flipping plate C21. A gap is left between the pad C22 and the adjacent flipping plate C21. The front end of the discharge guide plate B7 is close to the gap, so that the discharge guide plate B7 can help the sheet metal parts smoothly enter the gap and ensure that the sheet metal parts can be flipped by the rotation of the flipping plate C21. A baffle C23 is provided at the front end of the rotating shaft C20. The baffle C23 can prevent the sheet metal parts from falling off as they continue to move forward with the third conveying mechanism B5.

[0045] Below the sheet metal flipping mechanism C2, there are a first receiving and stacking mechanism C31 and a second receiving and stacking mechanism C32 arranged side by side. Both the first receiving and stacking mechanism C31 and the second receiving and stacking mechanism C32 include a first receiving plate C41 and a second receiving plate C42 parallel to the rotation axis C20. The first receiving plate C41 and the second receiving plate C42 are perpendicular to each other, and the included angle formed by them is located below the first receiving plate C41 and the second receiving plate C42. A first stacking baffle C410 is provided at the rear end of the first receiving plate C41, and a second stacking baffle C420 is provided at the rear end of the second receiving plate C42. A first buffer pad C411 is connected to the first receiving plate C41, and the first buffer pad C411 is inclined away from the first receiving plate C41 from the rear end to the front end. A second buffer pad C421 is connected to the second receiving plate C42, and the second buffer pad C421 is inclined away from the second receiving plate C42 from the rear end to the front end. The first receiving and stacking mechanism C31 and the second receiving and stacking mechanism C32 are jointly connected to the movable support C33. A cylinder C51 is connected to the bottom of the movable support C33. The cylinder C51 drives the first receiving and stacking mechanism C31 and the second receiving and stacking mechanism C32 to alternately position below the sheet metal flipping mechanism C2. A slider C510 is connected to the bottom of the first receiving plate C41 and the second receiving plate C42, respectively. The slider C510 is connected to an optical axis C511, which can slide back and forth on the optical axis C511. The optical axis C511 is parallel to the cylinder C51. The optical axis C511 provides guidance for the movement of the first receiving mechanism C31 and the second receiving mechanism C32, ensuring smooth alternating receiving of materials by the first receiving and stacking mechanism C31 and the second receiving and stacking mechanism C32. The cylinder C51 can also be replaced by a power vehicle, electric cylinder, motor drive, or other power mechanisms capable of providing displacement changes for the receiving and stacking mechanisms.

[0046] Above the first receiving and stacking mechanism C31 and the second receiving and stacking mechanism C32, a stacking clamping mechanism D6 is provided. The stacking clamping mechanism D6 consists of a first pad D61 and a second pad D62 arranged side by side and opposite to each other. The first pad D61 is fixed on the cylinder fixing plate D63, and the second pad D62 is connected to a clamping cylinder (not shown in the figure). The clamping cylinder is fixedly mounted on the cylinder fixing plate D63, and the top of the cylinder fixing plate D63 is connected to a lifting cylinder D54 through a connecting joint. The lifting cylinder D54 can drive the stacking clamping mechanism D6 to move up and down.

[0047] Lifting cylinder D54 is fixedly mounted on movable base plate D64. Movable base plate D64 is connected to cylinder D52, which is fixedly mounted on movable base D65. Slider D520 is connected to the bottom of movable base plate D64, and slider D520 is connected to optical axis D521. Optical axis D521 is fixedly mounted on movable base D65. A long through hole D66 is provided on movable base D65 below optical axis D521. Lifting cylinder D54 can slide within the long through hole D66 along the extension / retraction direction of cylinder D52. The long through hole D66, optical axis D621, and cylinder D52 are parallel to each other and perpendicular to the third conveying mechanism B5. Stacking conveying mechanism D7 is located below movable base D65 and perpendicular to the third conveying mechanism B5. Cylinder D52 can drive stacking clamping mechanism D6 and lifting cylinder D54 to reciprocate between the receiving and stacking mechanism and the stacking conveying mechanism D7. The stacking conveyor D7 does not have to be perpendicular to the third conveyor B5, as long as it can transport the sheet metal stack to the next process. However, setting the stacking conveyor D7 perpendicular to the third conveyor B5 can make full use of space and reduce the floor area.

[0048] A movable base D65 is connected to a cylinder D53, which is fixedly mounted on a fixed bracket D60. Cylinder D53 drives the movable base D65, along with lifting cylinders D54 and D52, and the stacking clamping mechanism D6, to reciprocate between the first receiving and stacking mechanism C31 and the second receiving and stacking mechanism C32. A slider D530 is connected to the side wall of the movable base D65, and an optical axis D531 is connected to the slider D530. The optical axis D531 is fixedly mounted on the fixed bracket D60, and the optical axis D531 and cylinder D53 are parallel to the third conveying mechanism B5.

[0049] In this embodiment, the material conveying mechanism adopts a material lowering mechanism and a material raising mechanism arranged side by side. Alternatively, depending on production needs, a material raising mechanism or a material lowering mechanism can be used alone, or multiple interconnected material raising and lowering mechanisms can be used, or a material conveying mechanism that conveys in other directions can be used, as long as the sheet metal parts can operate normally and continuously inside the box. The side-by-side arrangement of the material lowering mechanism and the material raising mechanism not only ensures that the path of the sheet metal parts running inside the box is long enough, but also simplifies the oven structure as much as possible, reduces the floor space of the box, and adapts to actual production needs.

[0050] In this embodiment, the material transfer mechanism adopts a structure in which a transverse conveyor chain drives the material feeding plate to reciprocate. Alternatively, a telescopic cylinder, electric cylinder, belt drive, gear and rack drive, or other transmission structures can be used, as long as they can drive the material feeding plate to reciprocate between two adjacent sets of material conveying mechanisms. The only advantage of using a structure in which two or more material feeding plates are evenly arranged on the transverse conveyor chain is that, while connecting the material lifting mechanism and the material lowering mechanism, the space occupied by the material transfer mechanism can be minimized as much as possible, thereby improving the transmission stability.

[0051] This embodiment includes a first receiving and stacking mechanism C31 and a second receiving and stacking mechanism C32 arranged side by side. The stacking clamping mechanism D6 can reciprocate between the first receiving and stacking mechanism C31 and the second receiving and stacking mechanism C32 under the drive of the cylinder D53. Alternatively, only one receiving and stacking mechanism can be used. After a stack of materials is completed, the machine stops, the stack is removed, and the stacking process is repeated. However, using two receiving and stacking mechanisms can enable continuous stacking of sheet metal parts, improving work efficiency. Alternatively, multiple receiving and stacking mechanisms or a stacking clamping mechanism with a fixed position can be used. The fixed position of the stacking material is clamped by the cyclical movement of multiple receiving and stacking mechanisms connected end to end. The reciprocating movement of the stacking clamping mechanism between two receiving and stacking mechanisms arranged side by side can simplify the equipment structure, reduce manufacturing costs, and reduce the floor space while ensuring work efficiency.

[0052] In this embodiment, the stacking clamping mechanism D6 uses a clamping cylinder to drive the first pad and the second pad to clamp each other to achieve the clamping and movement of the stacked material. Other structural forms such as magnetic attraction and clamping pliers can also be used, as long as they can meet the requirements of smooth picking and placing of the stacked material.

[0053] In this embodiment, eight flip plates are evenly distributed on the rotating shaft. The number of flip plates can also be two, three, etc., as long as the working angle between two adjacent flip plates is an acute angle, allowing one side of the bent sheet metal part to enter between the two flip plates and be driven away from the sheet metal conveying mechanism by the rotation of the flip plates. However, by using a structure with eight flip plates evenly distributed, the included angle between two adjacent flip plates is about 45°, which can better realize the flipping of L-shaped sheet metal parts.

[0054] The cylinder in this embodiment can also be replaced by an electric cylinder, a hydraulic cylinder, or other power mechanisms that can provide reciprocating motion, such as synchronous transmission of a motor; the motors in this embodiment can also be replaced by other drive mechanisms that can provide rotational power.

[0055] The working process of this embodiment:

[0056] This embodiment takes an L-shaped sheet metal part as an example. First, all motors are started, so that the material conveying unit A, the degreasing and drying unit B, the palletizing unit C, and the stacking conveying unit D all start operating. After the material conveying unit A starts, the first conveyor belt A10 and the second conveyor belt A20 operate normally, and the lifting plate A4 rotates with the first step motor. After the L-shaped sheet metal part flows out from the previous process, it first falls into the rear end of the first conveyor belt A10 and is conveyed forward with the first conveyor belt A10. When the L-shaped sheet metal part reaches the area of ​​the lifting plate A4 at the front end of the first conveyor belt A10, the rotating lifting plate A4 lifts the L-shaped sheet metal part upward, and the sheet metal part flips and falls between the vertical lifting plate A41 and the horizontal lifting plate A42. The stop block A43 at the end of the horizontal lifting plate A42 can prevent the sheet metal part from falling midway. As the lifting plate A4 continues to rotate, the sheet metal parts fall downwards onto the receiving mechanism A5 below the second conveyor belt A20. Due to the support of the first and second receiving plates, the impact of the sheet metal parts on the second conveyor belt A20 is buffered, effectively extending the life of the second conveyor belt A20. At the same time, the rubber plates fixed on the first and second receiving plates can protect the sheet metal parts and prevent them from being damaged by bumps.

[0057] The sheet metal parts continue to be conveyed forward along the second conveyor belt A20, and enter the material lifting mechanism B2 under the guidance of the feed guide plate A6. The left and right ends of the sheet metal parts are respectively mounted on the first lifting bracket B210 and the second lifting bracket B220. The sheet metal parts on the second conveyor belt A20 sequentially enter the material lifting mechanism B2, moving slowly upward along with the first lifting conveyor section B21 and the second lifting conveyor section B22. When the sheet metal parts reach the top of the material lifting mechanism B2, the pusher plate B81 pushes them forward, and both ends of the sheet metal parts enter the temporary bracket B9. As the pusher plate B81 continues to push forward, the sheet metal parts enter the material lowering mechanism B3, with both ends mounted on the first lowering bracket B310 and the second lowering bracket B320. With the continuous transmission of the material lowering mechanism B3, the sheet metal parts slowly move downward, and after falling onto the third conveyor belt B50, they continue to be conveyed forward along with the third conveyor belt B50. The sheet metal parts are heated evenly by continuous up-and-down movement inside the housing B1. The grease on the surface of the sheet metal parts is decomposed under high temperature and extracted by the fume extraction mechanism, ensuring the degreasing effect of the sheet metal parts. The extracted fumes can be collected and recycled, which reduces environmental pollution and lowers production costs.

[0058] The sheet metal parts continue to be conveyed forward along the third conveyor belt B50. One side of the sheet metal part is guided by the discharge guide plate B7 into the gap between two adjacent flipping plates C21 of the sheet metal flipping mechanism C2. The rotary motor drives the flipping plate C21 to rotate around the rotation axis C20. The sheet metal part is driven by the flipping plate C21 to rotate downward and fall onto the first receiving and stacking mechanism C31 with its opening facing upward. The above actions are repeated. When a certain number of sheet metal parts are on the first receiving and stacking mechanism C31, the cylinder C51 is activated, which drives the first receiving and stacking mechanism C31 and the second receiving and stacking mechanism C32 to move backward simultaneously, so that the second receiving and stacking mechanism C32 is located below the sheet metal flipping mechanism C2. Simultaneously, cylinder D53 starts, driving the stacking clamping mechanism D6 to move above the first receiving and stacking mechanism C31. Then, lifting cylinder C54 and clamping cylinder start, causing the stacking clamping mechanism D6 to clamp the sheet metal stack on the first receiving and stacking mechanism C31. After the clamping action is completed, lifting cylinder D54, cylinder D53 and cylinder D52 start in sequence, driving the stacking clamping mechanism D6 to move above the stacking conveying mechanism D7. The clamping cylinder retracts, causing the sheet metal stack to fall onto the stacking conveying mechanism D7. Then, the stacking clamping mechanism D6 returns to its original position.

[0059] When the number of sheet metal parts on the second receiving and stacking mechanism C32 reaches a certain quantity, cylinder C51 is activated, driving the first receiving and stacking mechanism C31 and the second receiving and stacking mechanism C32 to move forward simultaneously, positioning the first receiving and stacking mechanism C31 below the sheet metal flipping mechanism C2. Simultaneously, cylinder D53 is activated, moving the stacking clamping mechanism D6 above the second receiving and stacking mechanism C32. Then, lifting cylinder D54 and clamping cylinder are activated, causing the stacking clamping mechanism D6 to clamp the sheet metal stack on the second receiving and stacking mechanism C32. After the clamping action is completed, lifting cylinder D54, cylinder D53, and cylinder D52 are activated sequentially, moving the stacking clamping mechanism D6 above the stacking conveying mechanism D7. The clamping cylinder retracts, causing the sheet metal stack to fall onto the stacking conveying mechanism D7. The stacking clamping mechanism D6 then returns to its original position.

[0060] By repeating the above actions, the automatic stacking of bent sheet metal parts can be achieved. Due to the alternating work of the first receiving and stacking mechanism C31 and the second receiving and stacking mechanism C32, the sheet metal parts can be stacked continuously, which greatly improves the stacking efficiency of sheet metal parts.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the technical solution of the present invention are not permitted.

Claims

1. A fully automated production line for degreasing and stacking bent sheet metal parts, characterized in that: The system includes an oil removal and drying unit and a palletizing unit. The oil removal and drying unit includes an oil removal oven, which has a housing. A material conveying mechanism is installed inside the housing, and two or more sets of brackets are evenly arranged on the material conveying mechanism. Each set of brackets includes a first bracket and a second bracket arranged opposite each other. The housing has a material inlet and a material outlet. The front end of the material conveying mechanism is connected to the material outlet, and the rear end is connected to the material inlet. The material outlet is connected to the palletizing unit via a third conveying mechanism. The palletizing unit includes a sheet metal turning mechanism and a receiving and palletizing mechanism. The sheet metal turning mechanism is located on the third conveyor. On one side of the structure, the sheet metal flipping mechanism includes a rotating shaft and two or more flipping plates. The flipping plates are distributed circumferentially on the rotating shaft, and each flipping plate is connected to the rotating shaft along the axial direction of the rotating shaft. The working angle between two adjacent flipping plates is an acute angle. The rotating shaft is parallel to the third conveying mechanism and is connected to the first rotating drive mechanism. The receiving and stacking mechanism is located below the sheet metal flipping mechanism. The receiving and stacking mechanism includes a first receiving plate and a second receiving plate parallel to the rotating shaft. The first receiving plate and the second receiving plate are set at an angle, and the angle is located at the lower end of the receiving and stacking mechanism. The material inlet is connected to a material sorting unit via a second conveying mechanism. The material sorting unit includes a first conveying mechanism, which includes at least two sets of first conveyor belts arranged side by side. There is a gap between two adjacent sets of first conveyor belts. A lifting plate is provided in the gap. The lifting plate is connected to a third rotary drive mechanism, which can drive the lifting plate to rotate from bottom to top in the gap. The lifting plate includes a vertical lifting plate and a horizontal lifting plate. A stop is provided at the end of the horizontal lifting plate. The second conveying mechanism is located below the lifting plate, and the conveying direction of the second conveying mechanism is perpendicular to the conveying direction of the first conveying mechanism.

2. The fully automated production line for degreasing and palletizing bent sheet metal parts according to claim 1, characterized in that: The box is equipped with two or more sets of material conveying mechanisms, and adjacent sets of material conveying mechanisms are connected end to end by a material transfer mechanism.

3. The fully automated production line for degreasing and palletizing bent sheet metal parts according to claim 2, characterized in that: The material conveying mechanism conveys materials vertically, with two adjacent sets of material conveying mechanisms arranged side by side and conveying in opposite directions. The material transfer mechanism connects two adjacent sets of material conveying mechanisms horizontally.

4. The fully automated production line for degreasing and palletizing bent sheet metal parts according to claim 3, characterized in that: The material conveying mechanism includes a first conveying section and a second conveying section arranged side by side. The first conveying section and the second conveying section synchronously circulate and convey materials in a vertical direction. The first conveying section is provided with two or more sets of first brackets, and the second conveying section is provided with two or more sets of second brackets. The first conveying section and the second conveying section are respectively connected to a second rotary drive mechanism.

5. The fully automated production line for degreasing and palletizing bent sheet metal parts according to claim 3, characterized in that: The material transfer mechanism includes a material feeding plate, which is connected to a lateral moving mechanism. The lateral moving mechanism drives the material feeding plate to circulate back and forth between two adjacent sets of material conveying mechanisms.

6. The fully automated production line for degreasing and palletizing bent sheet metal parts according to claim 1, characterized in that: There are two or more material receiving and stacking mechanisms, and the material receiving and stacking mechanisms are connected to the displacement drive mechanism.

7. The fully automated production line for degreasing and palletizing bent sheet metal parts according to claim 6, characterized in that: There are two material receiving and stacking mechanisms, namely the first material receiving and stacking mechanism and the second material receiving and stacking mechanism. The first material receiving and stacking mechanism and the second material receiving and stacking mechanism are connected to the same displacement drive mechanism. The displacement drive mechanism drives the first material receiving and stacking mechanism and the second material receiving and stacking mechanism to alternately be located below the sheet metal flipping mechanism.

8. A fully automated production line for degreasing and palletizing bent sheet metal parts according to any one of claims 1 to 7, characterized in that: The second conveying mechanism is equipped with a receiving component, which is located below the lifting plate, and the top of the receiving component is lower than the conveying end face of the second conveying mechanism.

9. A fully automated production line for degreasing and palletizing bent sheet metal parts according to any one of claims 1 to 7, characterized in that: It also includes a stacking and conveying unit, which includes a stacking clamping mechanism and a stacking conveying mechanism. The stacking clamping mechanism is connected to a lifting drive mechanism and a second reciprocating drive mechanism. The stacking clamping mechanism can reciprocate between the receiving and stacking mechanism and the stacking conveying mechanism.

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