Automatic feeding and discharging equipment of a hot bending machine

Abstract

The present application belongs to the technical field of hot bending machine, and provides a hot bending machine automatic feeding and discharging equipment, which comprises a rack, a material moving part arranged on the rack, the material moving part being capable of guiding a plurality of linear products stored in a clamping seat into the rack, a mechanical hand and a grabbing mechanism, the mechanical hand being arranged at the end of the material moving part, the grabbing mechanism being movably connected to the mechanical hand, and a rotatable first material grabbing suction cup and a rotatable second material grabbing suction cup being symmetrically arranged on the grabbing mechanism. Compared with the prior art, the present application has the advantages that the labor intensity is reduced by automatic feeding and discharging, the first material grabbing suction cup and the second material grabbing suction cup are cooperated with each other, the phenomenon of product falling off in the material moving process and the phenomenon of worker scalding are effectively avoided, the position adjustment of the adjusting part relative to the supporting part is favorable for adapting to the curved product after hot bending, the manufacturing cost of the stacking mechanism is saved, and the quality of stacking and the stability of the whole equipment operation are ensured.

Description

Technical Field

[0001] This invention belongs to the field of hot bending machine technology, specifically relating to an automatic loading and unloading device for a hot bending machine. Background Technology

[0002] Hot bending machines are usually equipped with a heating furnace. During the process of pushing straight products into the heating furnace for heating, the straight products are heated and softened to form the desired curved products.

[0003] However, the loading and unloading of existing hot bending machines are still done manually. During manual loading, handling straight products requires a lot of labor, and the stability of straight products when placed in the heating furnace is poor, making them prone to collisions with the hot bending machine, which affects product quality. In addition, when unloading curved products after hot bending, the temperature of the curved products is about 300℃. Although workers use auxiliary tools to clamp the curved products, burns are inevitable. Moreover, it is often difficult to stabilize and fix the curved products during the clamping process, which affects the stacking of curved products. The overall stability and stacking quality cannot be guaranteed, which also seriously affects work efficiency. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by the present invention is to provide an automatic loading and unloading device for a hot bending machine.

[0005] The technical solution adopted by the present invention to solve its technical problem is to propose an automatic loading and unloading device for hot bending machine, which is used to hot bend straight products into curved products, including: a frame, on which a material transfer component is configured, wherein the material transfer component can guide a card holder containing a number of straight products into the frame; The system includes a robotic arm and a gripping mechanism. The robotic arm is located at the end of the material transfer component, and the gripping mechanism is movably connected to the robotic arm. The gripping mechanism is symmetrically equipped with a first and a second rotatable material-grabbing suction cup. When the first and second material-grabbing suction cups are placed parallel to each other, the robotic arm can grip and transfer the straight product into the hot bending machine. When the first and second material-grabbing suction cups are set at an angle and are both perpendicularly attached to the curved product, the robotic arm can remove the curved product from the hot bending machine. A stacking mechanism is movably mounted on the frame. The stacking mechanism includes a support part and an adjustment part. The support part is symmetrically arranged on both sides of the adjustment part. The adjustment part can reciprocate relative to the support part in the vertical direction. When the support part and the adjustment part are at the same horizontal height, they are used to support the straight product. When the adjustment part and the support part are not placed at the same height, they are used to support the curved product to prevent the curved product from swaying when the stacking mechanism moves.

[0006] In the aforementioned automatic loading and unloading equipment for a hot bending machine, the gripping mechanism further includes: A connecting plate is provided, and a rotating block is connected to the movable end of the robotic arm. The connecting plate is detachably connected to the rotating block. A rotary cylinder is disposed at both ends of the connecting plate along its length. An extension block is connected to the drive end of the rotary cylinder. The first material-picking suction cup and the second material-picking suction cup are connected to the extension block. A sensor, mounted on the extension block, is used to detect products on the first and second pick-up suction cups.

[0007] In the aforementioned automatic loading and unloading equipment for a hot bending machine, the material transfer component includes: Several feed rollers are spaced apart on the frame, and a synchronous belt connects the feed rollers so that the card holder can be moved into the frame when the feed rollers rotate. Several auxiliary wheels are symmetrically arranged on the frame and close to both ends of the feed roller along its length. The auxiliary wheels move against both sides of the clamping seat to guide the clamping seat to a designated position.

[0008] The aforementioned automatic loading and unloading equipment for a hot bending machine also includes: A locking cylinder is mounted on the frame. The driving end of the locking cylinder is connected to a locking block. The locking block is movably pressed against the two side walls of the card seat to restrict the movement of the card seat on the feed roller. A transfer guide is mounted on the frame and located above the feed roller. At least two alignment detection cameras are connected to the output end of the transfer guide to detect the positions of the two ends of the linear product on the robot arm.

[0009] In the aforementioned automatic loading and unloading equipment for a hot bending machine, the stacking mechanism further includes a material rack, the support part includes a mounting plate and several fixed support rods, and the adjusting part includes a movable plate and several movable support rods. The mounting plate is detachably connected to the material rack in the vertical direction, and several fixed support rods are equidistantly distributed on the mounting plate; The material rack is provided with a linear guide rail in the vertical direction, and several movable support rods are equidistantly distributed on the movable plate. The movable plate is connected to the drive end of the linear guide rail to drive the movable support rods to move relative to the fixed support rods.

[0010] The aforementioned automatic loading and unloading equipment for a hot bending machine also includes: The base is mounted on the frame; A lifting cylinder is vertically connected to the bottom of the base. The driving end of the lifting cylinder passes through the base and is connected to a support plate. A fixed column is provided on the support plate. A fixed sleeve is provided on the material rack. The fixed column is movably inserted into the fixed sleeve. The guide sleeve and the guide rod are both connected to the base. The guide rod is movably inserted into the guide sleeve to guide the material rack to move back and forth in the vertical direction. At least two limiting baffles are provided on the support plate, and the limiting baffles are movably pressed against the adjacent side walls of the material rack to prevent the material rack from tilting when it is lifted.

[0011] In the above-mentioned automatic loading and unloading equipment for a hot bending machine, a material transfer trolley is also included, which is movably arranged outside the frame. The material transfer trolley is provided with a placement platform, and a positioning column and a limiting block are formed on the placement platform. A positioning groove and a limiting groove are formed at the bottom of the material rack. When the lifting cylinder lifts the material rack, the material transfer trolley can move the placement platform to below the material rack, and when the material rack falls back, the positioning column is movably inserted into the positioning groove, and the limiting block is movably inserted into the limiting groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The automatic loading and unloading equipment for hot bending machine of the present invention realizes the automatic loading and unloading of straight and curved products, which greatly reduces the intensity of manual labor and improves work efficiency. At the same time, by using the rotatable first and second material suction cups to cooperate with each other, the robot can stably grip products of different shapes, effectively avoiding the phenomenon of products falling off during the transfer process and causing burns to workers. Meanwhile, by using the adjustment part on the stacking mechanism to adjust the position relative to the support part, the stacking mechanism can not only stably stack the straight products to be hot bent, but also adapt to the curved products after hot bending by adjusting the position of the adjustment part. It is highly flexible, saves the manufacturing cost of the stacking mechanism, and also provides a guarantee for the quality of stacking, thereby improving the overall stability of the equipment during operation.

[0013] (2) The position detection camera is used to detect the position of the straight product after it is grasped, and then the feedback is sent to the robot arm to perform corresponding coordinate correction. This ensures that the robot arm can smoothly and stably place the straight product into the hot bending machine, effectively avoiding the collision between the straight product and the hot bending machine due to position error during placement, and providing a guarantee for the quality of the product after hot bending.

[0014] (3) The fixed column is movably inserted into the fixed sleeve, and the guide rod is movably inserted into the guide sleeve. This ensures the stability of the lifting cylinder when lifting the material rack, and also ensures that the material rack always moves back and forth in the vertical direction, effectively preventing the product from falling and being damaged due to tilting during the lifting process. Attached Figure Description

[0015] Figure 1 This is a perspective view of this application; Figure 2 This is a schematic diagram of the structure when the clamp is located on the feed roller; Figure 3 This is an installation structure view of the robotic arm and gripping mechanism; Figure 4 This is a structural view of the support and adjustment parts mounted on the material rack; Figure 5 This is a view of the installation structure between the material transfer trolley, the lifting cylinder, and the support plate.

[0016] In the picture, 1. Booth; 2. Frame; 20. Locking cylinder; 21. Locking block; 3. Material transfer component; 30. Feed roller; 31. Synchronous belt; 32. Auxiliary pulley; 4. Robotic arm; 40. Rotating block; 5. Gripping mechanism; 50. First material suction cup; 51. Second material suction cup; 52. Connecting plate; 53. Rotary cylinder; 54. Extension block; 55. Sensor; 6. Stacking mechanism; 60. Support unit; 600. Mounting plate; 601. Fixed support rod; 61. Adjustment unit; 610. Moving plate; 611. Moving support rod; 62. Material rack; 620. Fixed sleeve; 621. Positioning groove; 622. Limiting groove; 63. Linear guide rail; 64. Mounting groove; 70. Material transfer guide; 71. Alignment detection camera; 80. Base; 81. Lifting cylinder; 82. Support plate; 820. Fixing column; 83. Guide sleeve; 84. Guide rod; 85. Limiting baffle; 90. Material transfer trolley; 91. Placement platform; 910. Positioning column; 911. Limiting block. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] like Figures 1 to 5 As shown, this invention discloses an automatic loading and unloading device for a hot bending machine, used to hot bend straight products into curved products. The device includes: a frame 2, on which a transfer component 3 is mounted, capable of guiding a holder 1 containing several straight products into the frame 2; a robotic arm 4 and a gripping mechanism 5. The robotic arm 4 is located at the end of the transfer component 3, and the gripping mechanism 5 is movably connected to the robotic arm 4. The gripping mechanism 5 is symmetrically equipped with a rotatable first suction cup 50 and a second suction cup 51. When the first suction cup 50 and the second suction cup 51 are placed parallel to each other, the robotic arm 4 can grip and transfer the straight products into the hot bending machine; the first suction cup 50... When the 0 and the second suction cup 51 are set at an angle and are both perpendicularly attached to the curved product, the robot arm 4 can carry the curved product away from the hot bending machine; the stacking mechanism 6 is movably set on the frame 2. The stacking mechanism 6 includes a support part 60 and an adjustment part 61. The support part 60 is symmetrically arranged on both sides of the adjustment part 61. The adjustment part 61 can reciprocate relative to the support part 60 in the vertical direction; when the support part 60 and the adjustment part 61 are at the same horizontal height, they can be used to support straight products; and when the adjustment part 61 and the support part 60 are not placed at the same height, they can be used to support curved products to prevent the curved products from shaking when the stacking mechanism 6 moves.

[0019] This solution primarily aims to automate a series of processes, such as hot bending straight products into curved products using a hot bending machine and then stacking them, for example... Figure 2 As shown, it should be noted that before loading, the worker can place several straight products to be heat-bent into the holder 1. The holder 1 in this design has several equidistant partitions (not shown in the figure), and the distance between two adjacent partitions must be greater than the thickness of the straight product to ensure that the robot arm 4 can smoothly extend the material-grabbing suction cup into the partition and complete the gripping of the straight product. When the material transfer component 3 pushes the holder 1, which is full of straight products, to a position close to the robot arm 4, the robot arm 4 can grip the straight product and transfer it to the heat bending machine (not shown in the figure) outside the frame 2. After being heated and softened by the heat bending machine, the desired curved product is formed. To enable one robot arm 4 to grip both straight and curved products simultaneously, this design includes a second material-grabbing suction cup 51 on the gripping mechanism 5, which is rotatable from the first material-grabbing suction cup 50. Specifically, as shown... Figure 3As shown, when the two suction cups are placed in parallel, they can stably adsorb straight products in the holder 1. After the curved product is hot-bent, the first suction cup 50 and the second suction cup 51 need to be rotated. To adapt to the shape of the curved product, the first suction cup 50 and the second suction cup 51 in this solution are arranged in a trumpet shape after rotation. This ensures that the first suction cup 50 and the second suction cup 51 are tangent to the curved surface of the curved product, thereby ensuring the stability of the suction cups when adsorbing the curved product. This effectively avoids the use of multiple robotic arms 4 with multiple suction cups at different angles, greatly saving manufacturing costs. It also solves the problems of low work efficiency and safety issues during manual loading and unloading. Furthermore, as... Figure 4 As shown, the height of the adjustment part 61 in the stacking mechanism 6 is adjusted relative to the support part 60 to adapt to the shape of different curved products. This ensures that the robot arm 4 can smoothly transfer the hot-bent curved products into the stacking mechanism 6 for storage. This saves space occupied by the stacking mechanism 6 and also ensures the quality of stacking. The overall structure is highly flexible, which greatly improves the smoothness and stability of the equipment during operation.

[0020] like Figure 2 As shown, the material transfer component 3 includes: a plurality of feed rollers 30, spaced apart on the frame 2, with a synchronous belt 31 connecting the plurality of feed rollers 30 so that the feed rollers 30 can transfer the card holder 1 into the frame 2 when they rotate; and a plurality of auxiliary wheels 32, symmetrically arranged on the frame 2 and close to both ends of the feed rollers 30 in the length direction, with the auxiliary wheels 32 moving against both sides of the card holder 1 to guide the card holder 1 to the designated position.

[0021] Furthermore, when the tray 1, filled with straight products awaiting heat bending, is transported into the feed roller 30 by an external AGV or robotic arm 4, the feed roller 30 can rotate. It should be noted that this solution includes a drive motor (not shown in the figure) on the frame 2. The drive motor is connected to a synchronous belt 31 pulley for driving the synchronous belt 31. Therefore, when the drive motor is turned on, the synchronous belt 31 drives the feed roller 30 to roll, thus pushing the tray 1 closer to the robotic arm 4, awaiting gripping by the first and second material-grabbing suction cups 50. During the movement of the tray 1, the auxiliary wheels 32 located at both ends of the feed roller 30 can move and abut against the side walls of the tray 1. The rolling of these auxiliary wheels 32 guides the tray 1 to move in a specified direction, providing guidance and limiting effects, thus ensuring the smoothness and stability of the tray 1's movement on the feed roller 30.

[0022] Preferably, the solution further includes: a locking cylinder 20, which is mounted on the frame 2, and a locking block 21 is connected to the drive end of the locking cylinder 20. The locking block 21 is movably pressed against the two side walls of the card holder 1 to restrict the card holder 1 from moving on the feed roller 30; and a transfer rail 70, which is mounted on the frame 2 and located above the feed roller 30. The output end of the transfer rail 70 is connected to at least two alignment detection cameras 71, which are used to detect the positions of the two ends of the straight product on the robot arm 4 respectively.

[0023] Continue to refer to Figure 2 When the card holder 1 is moved to the designated position by the feed roller 30, the locking cylinders 20 on both sides can drive the locking block 21 to move and press against the side wall of the card holder 1. This ensures the stability of the card holder 1 when it is on the feed roller 30, and ensures the smoothness of the subsequent gripping of the straight product by the robot arm 4 driving the first and second gripping suction cups 50 and 51. This effectively avoids the card holder 1 shaking when picking up straight products, which could cause damage to the suction cups or products. After the card holder 1 is fixed and the first and second suction cups 50 and 51 have grasped the linear product, the robot arm 4 moves the linear product to the bottom of the alignment detection camera 71, so that both ends of the linear product correspond to the alignment detection camera 71. It should be noted that there are two alignment detection cameras 71 in this solution, and their number can be adjusted according to the actual product requirements. Under the detection of the alignment detection cameras 71, the coordinates of both ends of the linear product can be fed back to the system of the robot arm 4, thereby giving the robot arm 4 a correction signal for the coordinate position. This helps to ensure that the robot arm 4 drives the gripping mechanism 5 to accurately push the linear product into the hot bending machine, preventing the linear product from colliding with the hot bending machine due to positional deviation when the suction cups adsorb the linear product, thus ensuring the quality of the product. The alignment detection camera 71 can be reciprocated through the transfer rail 70, thereby achieving the function of freely adjusting the position of the alignment detection camera 71, so that the structure can be adapted to the detection of products of different shapes and sizes, improving flexibility.

[0024] like Figure 3 As shown, the gripping mechanism 5 also includes: a connecting plate 52, the movable end of the robot arm 4 is connected to a rotating block 40, and the connecting plate 52 is detachably connected to the rotating block 40; a rotary cylinder 53, which is disposed at both ends of the connecting plate 52 in the length direction, and the drive end of the rotary cylinder 53 is connected to an extension block 54, and the first material suction cup 50 and the second material suction cup 51 are connected to the extension block 54; and a sensor 55, which is installed on the extension block 54 and is used to detect the products on the first material suction cup 50 and the second material suction cup 51.

[0025] When the gripping mechanism 5 needs to grip a straight product, the rotary cylinder 53 can drive the first and second gripping suction cups 50 and 51 to rotate via the extension block 54, so that the two gripping suction cups are placed in a parallel position. As the robot arm 4 drives the connecting plate 52 to move, along with the rotating block 40 connected to the end of the robot arm 4, the first and second gripping suction cups 50 and 51 can be positioned in the optimal position to complete the picking up of the straight product. Similarly, when the gripping mechanism 5 needs to grip a curved product after hot bending, the rotary cylinder 53 drives the first and second gripping suction cups 50 and 51 to rotate to an angle between them, ensuring that both the first and second gripping suction cups 50 and 51 can be tangent to the curved surface of the curved product (i.e., the axis of the gripping suction cup is perpendicular to the curved surface). This helps to improve the firmness of the gripping suction cup when gripping the curved product, and avoids the phenomenon of the curved product shaking or even falling during the transfer of the robot arm 4, greatly improving the stability during operation. It should be noted that, regardless of whether the pick-up suction cup is gripping a straight or curved product, during the gripping and transfer process, the sensor 55 on the extension block 54 can detect whether there is a product on the pick-up suction cup, thereby preventing the robot arm 4 from continuing to transport the product when it falls off, thus avoiding the phenomenon of empty stroke.

[0026] like Figure 4 and Figure 5 As shown, the stacking mechanism 6 also includes a material rack 62, a support part 60 including a mounting plate 600 and several fixed support rods 601, and an adjustment part 61 including a movable plate 610 and several movable support rods 611. The mounting plate 600 is detachably connected to the material rack 62 in the vertical direction, and the several fixed support rods 601 are equidistantly distributed on the mounting plate 600. The material rack 62 is provided with a linear guide rail 63 in the vertical direction, and the several movable support rods 611 are equidistantly distributed on the movable plate 610. The movable plate 610 is connected to the driving end of the linear guide rail 63 to drive the movable support rods 611 to move relative to the fixed support rods 601.

[0027] To enable the same material rack 62 to support products of different shapes, this design incorporates a support 60 and an adjustment 61 connected to the material rack 62. Specifically, when the material rack 62 needs to support several linear products, the linear guide rail 63 located between the two mounting plates 600 can drive several movable support rods 611 along the moving plate 610. Figure 4Vertical displacement adjustment ensures that the movable support rods 611 on the movable plate 610 correspond one-to-one with the fixed support rods 601 on the mounting plate 600, and are at the same horizontal height. This allows both the fixed support rods 601 and the movable support rods 611 to simultaneously support the linear product, ensuring its stability within the material rack 62. When the material rack 62 needs to support several curved products, the linear guide rail 63 drives the movable support rods 611 on the movable plate 610 to be staggered with the fixed support rods 601 on both sides (i.e., at different heights). When the height of each movable support rod 611 is slightly lower than the height of the fixed support rods 601 on both sides, the robot arm 4 can then smoothly place the curved product into the material rack 62. Figure 4 As shown, the movable support rod 611 and the fixed support rods 601 on both sides can be pressed against the bottom of the curved product, thereby achieving a stable support effect. This effectively prevents the curved product from shaking or even falling out of the material rack 62 due to unstable support from the fixed support rod 601 and the movable support rod 611.

[0028] Preferably, both the fixed support rod 601 and the movable support rod 611 of this solution are provided with a plurality of mounting grooves 64. The mounting grooves 64 are used to install high-temperature resistant rubber rings. The rubber rings are used to increase the friction between the curved product and the fixed support rod 601 and the movable support rod 611, thereby further improving the stability of the curved product when stored in the material rack 62.

[0029] This solution also includes: a base 80, mounted on the frame 2; a lifting cylinder 81, vertically connected to the bottom of the base 80, the driving end of the lifting cylinder 81 passing through the base 80 and connected to a support plate 82, the support plate 82 having a fixed column 820, the material rack 62 having a fixed sleeve 620, the fixed column 820 being movably inserted into the fixed sleeve 620; a guide sleeve 83 and a guide rod 84, both connected to the base 80, the guide rod 84 being movably inserted into the guide sleeve 83 to guide the material rack 62 to reciprocate vertically; and at least two limiting baffles 85, mounted on the support plate 82, the limiting baffles 85 being movably pressed against the adjacent side walls of the material rack 62 to prevent the material rack 62 from tilting when lifted.

[0030] Continue to refer to Figure 4 and Figure 5In this solution, the material rack 62 can be moved and transported. Specifically, before waiting for the curved products to be stacked, the material rack 62 can be placed on the frame 2. To ensure the stability of the material rack 62, this solution has a fixing column 820 on the support plate 82 and a fixing sleeve 620 on the material rack 62. As the material rack 62 is placed on the frame 2, the fixing column 820 can be movably inserted into the fixing sleeve 620, thereby providing a certain positioning effect for the material rack 62. This effectively prevents the material rack 62 from shifting and causing the curved products to fall and be damaged, thus improving efficiency. The stability of the material rack 62 when it is waiting to load curved products is ensured; when the material rack 62 is full of curved products, the lifting cylinder 81 lifts the support plate 82, thereby moving the material rack 62 and several curved products away from the frame 2. This also creates a certain gap between the material rack 62 and the frame 2, allowing external moving devices to extend into the gap. After supporting the material rack 62, the material rack 62 and curved products are moved to the required location for storage, saving fatigue during manual handling and improving overall work efficiency.

[0031] Preferably, during the lifting of the material rack 62 by the support plate 82, the guide rod 84 reciprocates along the axial direction (i.e., the vertical direction) of the guide sleeve 83, thereby providing a guiding effect when the material rack 62 is lifted or lowered. In conjunction with the upper limit baffle 85 abutting and limiting the material rack 62 against the adjacent side walls, it plays a certain positioning role when the material rack 62 is placed, and effectively prevents the material rack 62 from shifting or tilting during the lifting process, thus improving the stability of the structure.

[0032] Furthermore, this solution also includes a material transfer trolley 90 movably disposed on the outside of the frame 2. The material transfer trolley 90 is provided with a placement platform 91, and a positioning post 910 and a limiting block 911 are formed on the placement platform 91. The bottom of the material rack 62 is provided with a positioning groove 621 and a limiting groove 622. When the lifting cylinder 81 lifts the material rack 62, the material transfer trolley 90 can drive the placement platform 91 to move below the material rack 62. When the material rack 62 falls back, the positioning post 910 is movably inserted into the positioning groove 621, and the limiting block 911 is movably inserted into the limiting groove 622.

[0033] refer to Figure 5Once the material rack 62 is placed on the support plate 82 and fully loaded with curved products and lifted by the lifting cylinder 81, the material transfer trolley 90 with rollers (i.e. the aforementioned moving device) can then move the placement platform 91 to the bottom of the material rack 62. As the lifting cylinder 81 drives the material rack 62 to fall back, the positioning column 910 on the placement platform 91 is movably inserted into the positioning groove 621, and the upper limit block 911 is movably inserted into the limit groove 622, ensuring the stability of the material rack 62 during the transfer process on the placement platform 91.

[0034] Preferably, in this solution, the height of the placement platform 91 is higher than the height of the fixed column 820 on the support plate 82, so that the material rack 62 can be pre-placed on the placement platform 91 during the descent process. After the lifting cylinder 81 drives the support plate 82 and the fixed column 820 to reset to the lowest position, the material rack 62 is moved out of the frame 2 by the material transfer trolley 90, which effectively avoids positional interference between the fixed column 820 and the placement platform 91, thus affecting the smoothness and stability of the material rack 62 during unloading.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0036] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. An automatic loading and unloading device for a hot bending machine, used to hot bend straight products into curved products, characterized in that, include: A frame on which a transfer component is configured to guide a cassette containing a number of linear products into the frame; The system includes a robotic arm and a gripping mechanism. The robotic arm is located at the end of the material transfer component, and the gripping mechanism is movably connected to the robotic arm. The gripping mechanism is symmetrically equipped with a first and a second rotatable material-grabbing suction cup. When the first and second material-grabbing suction cups are placed parallel to each other, the robotic arm can grip and transfer the straight product into the hot bending machine. When the first and second material-grabbing suction cups are set at an angle and are both perpendicularly attached to the curved product, the robotic arm can remove the curved product from the hot bending machine. A stacking mechanism is movably mounted on the frame. The stacking mechanism includes a support part and an adjusting part. The support part is symmetrically arranged on both sides of the adjusting part. The adjusting part can reciprocate relative to the support part in the vertical direction. When the support part and the adjusting part are at the same horizontal height, they can be used to support the straight product. When the adjusting part and the support part are not placed at the same height, they can be used to support the curved product to prevent the curved product from swaying when the stacking mechanism moves. The gripping mechanism further includes: a connecting plate, wherein the movable end of the robotic arm is connected to a rotating block, and the connecting plate is detachably connected to the rotating block; a rotary cylinder, disposed at both ends along the length of the connecting plate, wherein the driving end of the rotary cylinder is connected to an extension block, and the first and second material-grabbing suction cups are connected to the extension block; and a sensor, mounted on the extension block, which is used to detect the products on the first and second material-grabbing suction cups. The material transfer component includes: a plurality of feed rollers spaced apart on the frame, with a synchronous belt connecting the plurality of feed rollers so that the feed rollers can move the clamp into the frame when they rotate; and a plurality of auxiliary wheels symmetrically arranged on the frame and close to both ends of the feed rollers along their length, the auxiliary wheels movably abutting against both sides of the clamp to guide the clamp to a designated position. The stacking mechanism further includes a material rack. The support part includes a mounting plate and several fixed support rods. The adjustment part includes a movable plate and several movable support rods. The mounting plate is detachably connected to the material rack in the vertical direction. The several fixed support rods are equidistantly distributed on the mounting plate. The material rack is provided with a linear guide rail in the vertical direction. The several movable support rods are equidistantly distributed on the movable plate. The movable plate is connected to the drive end of the linear guide rail to drive the movable support rods to move relative to the fixed support rods.

2. The automatic loading and unloading equipment for a hot bending machine according to claim 1, characterized in that, Also includes: A locking cylinder is mounted on the frame. The driving end of the locking cylinder is connected to a locking block. The locking block is movably pressed against the two side walls of the card seat to restrict the movement of the card seat on the feed roller. A transfer guide is mounted on the frame and located above the feed roller. At least two alignment detection cameras are connected to the output end of the transfer guide to detect the positions of the two ends of the linear product on the robot arm.

3. The automatic loading and unloading equipment for a hot bending machine according to claim 1, characterized in that, Also includes: The base is mounted on the frame; A lifting cylinder is vertically connected to the bottom of the base. The driving end of the lifting cylinder passes through the base and is connected to a support plate. A fixed column is provided on the support plate. A fixed sleeve is provided on the material rack. The fixed column is movably inserted into the fixed sleeve. The guide sleeve and the guide rod are both connected to the base. The guide rod is movably inserted into the guide sleeve to guide the material rack to move back and forth in the vertical direction. At least two limiting baffles are provided on the support plate, and the limiting baffles are movably pressed against the adjacent side walls of the material rack to prevent the material rack from tilting when it is lifted.

4. The automatic loading and unloading equipment for a hot bending machine according to claim 3, characterized in that, It also includes a material transfer trolley that is movably set outside the frame. The material transfer trolley is equipped with a placement platform, and a positioning post and a limiting block are formed on the placement platform. A positioning groove and a limiting groove are formed at the bottom of the material rack. When the lifting cylinder lifts the material rack, the material transfer trolley can move the placement platform to below the material rack, and when the material rack falls back, the positioning column is movably inserted into the positioning groove, and the limiting block is movably inserted into the limiting groove.

Images