A plate heating and bending machine

Abstract

The utility model relates to the technical field of plate processing, disclose a kind of plate heating bending machine, including processing table, the upper surface center of processing table is provided with heating part, the upper surface of processing table is fixedly connected with controller, the left side of processing table is fixedly connected with fixed frame, the left side surface of fixed frame is fixedly connected with motor, the right side output end of motor is through fixed frame, the right side output end of motor is fixedly connected with screw rod, the outside screw thread of screw rod is connected with moving block, the quantity of moving block is several, several moving blocks are set in left-right linear array. In the utility model, the cooperation of the structure such as fixed frame, motor, screw rod, L type limit frame and plug-in block that are set, plate can be quickly positioned in corresponding position, ensure that plate bending position corresponds with heating part, and when encountering plate length difference is larger, the initial adjustment position of L type limit frame can be adjusted, and adjustment time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, and in particular to a sheet metal heating and bending machine. Background Technology

[0002] Acrylic sheets are thermoplastic sheets made of polymethyl methacrylate. In the production and processing of acrylic sheets, a heating bending machine is used to heat the sheet to its softening point. Then, a mechanical device is used to bend the softened sheet. After the sheet cools and sets, the desired bending shape is obtained.

[0003] Existing acrylic sheet heating and bending machines generally include a worktable, heating elements, temperature control devices, and bending execution systems. After the acrylic sheet is placed on the worktable, the heating elements heat and soften the part of the sheet to be bent. The softened sheet is then manually bent manually in a quick initial bending motion. Finally, the sheet is placed in the mold position for precise bending. During the bending process, the pressure is kept stable to avoid excessive speed that could cause creases or cracks.

[0004] In practical use, existing heated bending machines use a moving plate to limit the end of the sheet metal, so that the bending position of the sheet metal is stably placed at the heating element for heating. The moving plate is generally driven linearly by a drive component. However, when dealing with sheets with large length differences, the moving distance of the moving plate is large, and the required automatic adjustment time is also long, which affects the processing efficiency. Therefore, a sheet metal heated bending machine is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a sheet metal heating and bending machine, which aims to solve the problem in the prior art that the adjustment time required for moving the plate is too long when heating and limiting sheets of different lengths, which affects the processing efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sheet metal heating and bending machine, comprising a processing table, a heating element disposed at the center of the upper surface of the processing table, a controller fixedly connected to the upper surface of the processing table, a fixed frame fixedly connected to the left side of the processing table, a motor fixedly connected to the left side surface of the fixed frame, a lead screw fixedly connected to the right side output end of the motor, a movable block threadedly connected to the outer side of the lead screw, a plurality of movable blocks arranged in a left-right linear array, a slot provided on the upper surface of the movable block, a limit rod fixedly connected to the left side surface of the processing table, the left end of the limit rod penetrating the movable block, an L-shaped limit frame disposed above the fixed frame, and an insert fixedly connected to the bottom surface of the L-shaped limit frame.

[0007] As a further description of the above technical solution:

[0008] The size of the insert block is adapted to the size of the slot.

[0009] As a further description of the above technical solution:

[0010] The upper surface of the fixed frame has limit grooves on both the front and rear sides. Limit blocks are slidably connected inside the limit grooves, and the top of the limit blocks is fixedly connected to the bottom surface of the L-shaped limit frame.

[0011] As a further description of the above technical solution:

[0012] The right end of the lead screw is rotatably connected to the left side surface of the processing table, and the left end of the limiting rod is fixedly connected to the left inner wall surface of the fixing frame.

[0013] As a further description of the above technical solution:

[0014] The inner bottom surface of the L-shaped limiting frame is on the same horizontal plane as the upper surface of the processing table.

[0015] As a further description of the above technical solution:

[0016] A bending frame is fixedly connected to the right side surface of the processing table. A rotating plate is rotatably connected inside the bending frame. A storage shell is fixedly connected to the bottom surface of the bending frame. Multiple electric push rods are fixedly connected to the right inner wall surface of the storage shell. A slider is hinged to the left end of the multiple electric push rods. A groove is opened on the right side surface of the rotating plate.

[0017] As a further description of the above technical solution:

[0018] The slider is slidably connected to the inside of the groove, and the left end of the multi-section electric push rod is inclined upward.

[0019] As a further description of the above technical solution:

[0020] Guide columns are fixedly connected to both the left and right surfaces of the rotating plate, and arc-shaped through grooves are opened on both the left and right surfaces of the bending frame. The guide columns are slidably connected to the inside of the arc-shaped through grooves.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, through the cooperation of the fixed frame, motor, lead screw, moving block, slot, limit rod, L-shaped limit frame and insert, the plate can be quickly limited to the corresponding position, ensuring that the bending position of the plate corresponds to the heating element. When there is a large difference in the length of the plate, the initial adjustment position of the L-shaped limit frame can be adjusted so that the L-shaped limit frame can reach the required position after a short adjustment, thus shortening the adjustment time.

[0023] 2. In this utility model, the rotation angle of the rotating plate can be quickly adjusted by the combination of the storage shell, multi-section electric push rod, guide column and arc-shaped through groove to meet different bending requirements. At the same time, the combination of guide column and arc-shaped through groove further ensures the stability of the rotating plate's movement, which is conducive to precise adjustment of the bending angle. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a sheet metal heating and bending machine proposed in this utility model;

[0025] Figure 2 This utility model proposes a sheet metal heating and bending machine. Figure 1 A partial schematic diagram of point A;

[0026] Figure 3 This is a schematic diagram of the L-shaped limiting frame of a sheet metal heating and bending machine proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the bending frame of a sheet metal heating and bending machine according to the present invention;

[0028] Figure 5 This utility model proposes a sheet metal heating and bending machine. Figure 4 A schematic diagram of part B.

[0029] Legend:

[0030] 1. Processing table; 2. Heating element; 3. Controller; 4. Fixing frame; 5. Motor; 6. Lead screw; 7. Moving block; 8. Slot; 9. Limiting rod; 10. L-shaped limiting frame; 11. Insert block; 12. Limiting groove; 13. Limiting block; 14. Bending frame; 15. Rotating plate; 16. Storage housing; 17. Multi-section electric push rod; 18. Guide column; 19. Arc-shaped through groove; 20. Slider; 21. Slide groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 This utility model provides an embodiment of a sheet metal heating and bending machine, comprising a processing table 1, a heating element 2 disposed at the center of the upper surface of the processing table 1, and a controller 3 fixedly connected to the upper surface of the processing table 1. The heating element 2 includes a placement groove, a quartz heating tube, a mounting frame, a lifting hydraulic cylinder, and a movable housing. The placement groove is located on the upper surface of the processing table 1, the mounting frame is fixedly connected above the processing table 1, the lifting hydraulic cylinder is fixedly connected to the inner top surface of the mounting frame, and the movable housing is fixedly connected to the bottom end of the lifting hydraulic cylinder. Quartz heating elements are fixedly connected inside both the placement groove and the movable housing. The heating element has a through groove at the bottom of the movable housing. After the acrylic sheet is placed directly above the processing table 1, the quartz heating elements on the upper and lower sides can be activated by the controller 3 to heat the upper and lower surfaces of the acrylic sheet simultaneously, improving heating efficiency and quickly softening the bending area of ​​the acrylic sheet for easy bending. The lifting hydraulic cylinder can drive the movable housing and the quartz heating elements inside to move linearly up and down to accommodate acrylic sheets of different thicknesses. The above structures are all existing technologies in this field and will not be described in detail here.

[0033] Reference Figures 1-3A fixed frame 4 is fixedly connected to the left side of the processing table 1. A motor 5 is fixedly connected to the left surface of the fixed frame 4. A support frame (not shown directly in the figure) is fixedly connected to the bottom of the motor 5. The support frame and the fixed frame 4 are fixedly connected to each other, so that the motor 5 can be placed stably. The right output end of the motor 5 passes through the fixed frame 4. A lead screw 6 is fixedly connected to the right output end of the motor 5. The right end of the lead screw 6 is rotatably connected to the left surface of the processing table 1. When the motor 5 starts, it can drive the lead screw 6 to rotate. A moving block 7 is threaded on the outside of the lead screw 6. There are several moving blocks 7, which are arranged in a left-right linear array. When the lead screw 6 moves, it can drive the moving blocks 7 to move synchronously. A slot 8 is opened on the upper surface of the moving block 7. A limit rod 9 is fixedly connected to the left surface of the processing table 1. The left end of the limit rod 9 passes through the moving block 7. The left end of the limit rod 9 is fixedly connected to the left inner wall surface of the fixed frame 4. There are two limit rods 9. The two limit rods 9 are located on the front and rear sides of the lead screw 6, respectively. 9 can guide and limit the movement of the movable block 7, allowing it to move only in a straight line in the left and right directions. When the motor 5 starts and drives the lead screw 6 to rotate, the movable block 7 can be moved in a straight line in the front and back directions under the limit of the limit rod 9. An L-shaped limit frame 10 is set above the fixed frame 4. The flatness error of the vertical limiting surface (the side in contact with the board) of the L-shaped limit frame 10 is ≤0.05mm, and the perpendicularity error with the upper surface of the processing table 1 is ≤0.1mm / m, ensuring that there is no problem after the board is bonded. The gap between the bottom surface of the L-shaped limit frame and the upper surface of the processing table 1 is ≤0.5mm to prevent the end of the plate from warping. The inner bottom surface of the L-shaped limit frame 10 is on the same horizontal plane as the upper surface of the processing table 1. The bottom surface of the L-shaped limit frame 10 is fixedly connected to the insert block 11. The size of the insert block 11 is compatible with the size of the slot 8. The insert block 11 can be inserted into the slot 8 for limiting. By selecting the slot 8 on the moving block 7 at different positions, the L-shaped limit frame 10 can be quickly limited to different positions for easy and quick adjustment.

[0034] Limiting grooves 12 are provided on both the front and rear sides of the upper surface of the fixed frame 4. Limiting blocks 13 are slidably connected inside the limiting grooves 12. The top of the limiting block 13 is fixedly connected to the bottom surface of the L-shaped limiting frame 10. When the L-shaped limiting frame 10 moves, it will drive the limiting block 13 to move synchronously. When the insert 11 is inserted into the slot 8, the limiting block 13 will be inserted into the limiting groove 12 synchronously. Through the cooperation between the limiting groove 12 and the limiting block 13, the movement of the L-shaped limiting frame 10 can be further guided and limited to ensure the stability of the L-shaped limiting frame 10 during movement. The motor 5 is started by the controller 3. The moving block 7 is moved left and right to adjust, so that it quickly moves to the position corresponding to the length of the sheet material. Then, the acrylic sheet material is placed on the processing table 1, and the left end of the sheet material is pressed against the inner left side of the L-shaped limiting frame 10 to quickly limit the sheet material and ensure that the bending position of the sheet material corresponds to the heating element 2. When the length difference between the sheets material in the previous and subsequent batches is too large, the L-shaped limiting frame 10 can be quickly lifted and the insert block 11 can be inserted into the slot 8 on the moving block 7 that corresponds to the length of the sheet material. Then, the motor 5 can be started to drive the moving block 7 to make a short-distance adjustment, thus shortening the adjustment time.

[0035] Reference Figure 1 , Figure 4 and Figure 5 A bending frame 14 is fixedly connected to the right side surface of the processing table 1. A rotating plate 15 is rotatably connected inside the bending frame 14. The rotating plate 15 is rotatably connected to the bending frame 14 via two stainless steel hinge shafts with a diameter of 10mm. The gap between the left side surface of the rotating plate 15 and the left inner wall surface of the bending frame 14 is the bending space, which can be used to precisely adjust the heated sheet metal after bending. A storage shell 16 is fixedly connected to the bottom surface of the bending frame 14. A multi-section electric push rod 17 is fixedly connected to the right inner wall surface of the storage shell 16. The initial tilt angle of the multi-section electric push rod 17 is 30° (angle with the horizontal plane), its maximum extension is 50cm, and its minimum extension is... The retraction amount is 10cm. When the push rod extends by 10cm, the rotating plate 15 is in a horizontal state (flush with the upper surface of the processing table 1). For every 5cm increase in extension, the rotating plate 15 rotates 5° clockwise, with a maximum rotation angle of 90° (corresponding to an extension of 50cm). The controller 3 can display the current bending angle in real time (accuracy ±1°) through the displacement sensor built into the push rod. The left end of the multi-section electric push rod 17 is tilted upward. When the multi-section electric push rod 17 is fully retracted, it can be completely stored inside the storage housing 16 and hidden inside the storage housing 16 and below the horizontally placed rotating plate 15, so as not to affect the horizontal placement of the rotating plate 15.

[0036] A slider 20 is hinged to the left end of the multi-section electric push rod 17. A groove 21 is provided on the right side surface of the rotating plate 15. The slider 20 is slidably connected to the inside of the groove 21. The slider 20 can move linearly along the path of the groove 21 inside the groove 21. When the multi-section electric push rod 17 is started, it can drive the slider 20 to move obliquely in the left and right directions. At this time, the multi-section electric push rod 17 and the slider 20 will support and limit the right side of the rotating plate 15. The rotation angle of the rotating plate 15 can be adjusted by extending the length of the multi-section electric push rod 17 to adapt to different bending requirements. At the same time, the slider 20 can move inside the groove 21 without affecting the movement of the rotating plate 15. When the multi-section electric push rod 17 is fully retracted, its left end slider 20 is located at the rightmost end of the groove 21. The entire push rod is stored in the storage housing 16. The distance between the top of the push rod and the bottom surface of the rotating plate 15 is ≥3cm to ensure that the rotating plate 15 can remain horizontal.

[0037] Guide posts 18 are fixedly connected to both the left and right surfaces of the rotating plate 15. When the rotating plate 15 rotates, it will drive the guide posts 18 to move synchronously. Arc-shaped through grooves 19 are opened on both the left and right surfaces of the bending frame 14. The guide posts 18 are slidably connected to the arc-shaped through grooves 19. The path of the arc-shaped through grooves 19 is the same as the rotation path of the rotating plate 15. By setting the cooperation of the guide posts 18 and the arc-shaped through grooves 19, the movement of the rotating plate 15 can be further guided and limited to ensure the stability of the movement of the rotating plate 15.

[0038] Working principle: Based on the thickness of the sheet material, the height of the movable housing and its internal quartz heating tubes is adjusted by the lifting hydraulic cylinder to match the spacing between the quartz heating tubes in the placement slot and the sheet material thickness. Based on the length of the sheet material, a suitable movable block 7 is selected, and the insert block 11 of the L-shaped limiting frame 10 is inserted into the slot 8 of the movable block 7. At the same time, the limiting block 13 slides into the limiting groove 12. Then, the controller 3 starts the motor 5 to drive the lead screw 6 to rotate. Under the guidance of the limiting rod 9, the movable block 7 drives the L-shaped limiting frame 10 to be finely adjusted to a precise position. Subsequently, the acrylic sheet material is placed on the heating element 2 of the processing table 1, with the left end of the sheet material pressed against the left inner wall of the L-shaped limiting frame 10 for positioning. The controller 3 starts the quartz heating tubes in the placement slot and the movable housing, and at the same time heats the bent areas on the upper and lower surfaces of the sheet material to soften it quickly.

[0039] After heating, the staff can manually bend the sheet material initially, and then place the bent part of the sheet material into the gap between the rotating plate 15 and the inner left wall of the bending frame 14. The multi-section electric push rod 17 in the housing 16 is activated, and its left end drives the slider 20 to slide in the groove 21 of the rotating plate 15, pushing the rotating plate 15 to rotate around the bending frame 14. The guide column 18 slides along the arc-shaped through groove 19 to assist in limiting the position. By adjusting the extension of the multi-section electric push rod 17, the rotating plate 15 reaches the required bending angle, pressing the sheet material to the preset angle. After holding the pressure for 10-30 seconds, the shaping is completed, and the sheet material bending is finished.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sheet metal heating and bending machine, comprising a processing table (1), characterized in that: A heating element (2) is provided at the center of the upper surface of the processing table (1). A controller (3) is fixedly connected to the upper surface of the processing table (1). A fixed frame (4) is fixedly connected to the left side of the processing table (1). A motor (5) is fixedly connected to the left side surface of the fixed frame (4). The right output end of the motor (5) passes through the fixed frame (4). A lead screw (6) is fixedly connected to the right output end of the motor (5). A moving block (7) is threaded to the outside of the lead screw (6). There are several moving blocks (7). Several moving blocks (7) are arranged in a left-right linear array. A slot (8) is opened on the upper surface of the moving block (7). A limit rod (9) is fixedly connected to the left side surface of the processing table (1). The left end of the limit rod (9) passes through the moving block (7). An L-shaped limit frame (10) is provided above the fixed frame (4). An insert block (11) is fixedly connected to the bottom surface of the L-shaped limit frame (10).

2. The sheet metal heating and bending machine according to claim 1, characterized in that: The size of the insert (11) is adapted to the size of the slot (8).

3. The sheet metal heating and bending machine according to claim 1, characterized in that: The upper surface of the fixed frame (4) has limit grooves (12) on both the front and rear sides. The limit grooves (12) are slidably connected to the inside of the limit blocks (13). The top of the limit blocks (13) is fixedly connected to the bottom surface of the L-shaped limit frame (10).

4. The sheet metal heating and bending machine according to claim 1, characterized in that: The right end of the lead screw (6) is rotatably connected to the left side surface of the processing table (1), and the left end of the limiting rod (9) is fixedly connected to the left inner wall surface of the fixing frame (4).

5. A sheet metal heating and bending machine according to claim 1, characterized in that: The inner bottom surface of the L-shaped limiting frame (10) and the upper surface of the processing table (1) are on the same horizontal plane.

6. A sheet metal heating and bending machine according to claim 1, characterized in that: A bending frame (14) is fixedly connected to the right side surface of the processing table (1). A rotating plate (15) is rotatably connected inside the bending frame (14). A storage shell (16) is fixedly connected to the bottom surface of the bending frame (14). A multi-section electric push rod (17) is fixedly connected to the right inner wall surface of the storage shell (16). A slider (20) is hinged to the left end of the multi-section electric push rod (17). A groove (21) is opened on the right side surface of the rotating plate (15).

7. A sheet metal heating and bending machine according to claim 6, characterized in that: The slider (20) is slidably connected to the inside of the groove (21), and the left end of the multi-section electric push rod (17) is inclined upward.

8. A sheet metal heating and bending machine according to claim 6, characterized in that: Guide columns (18) are fixedly connected to both the left and right sides of the rotating plate (15), and arc-shaped through grooves (19) are opened on both the left and right sides of the bending frame (14). The guide columns (18) are slidably connected to the arc-shaped through grooves (19).

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