A cutting positioning error automatic compensation device

Abstract

The utility model discloses a kind of cutting positioning error automatic compensation devices, including aluminium plastic film forming machine, aluminium plastic film forming machine is provided with stamping area, conveying area and cutting table, cutting table is provided with the cutting knife of cutting after punching aluminium plastic film and the laser sensor of setting in cutting knife two sides and identifying after punching pit, cutting table is provided with lifting assembly, lifting plate is provided in lifting assembly and carries out lifting displacement, cutting knife and laser sensor are all set on mounting bracket, mounting bracket is set on lifting plate and with lifting plate synchronous movement, driving assembly is provided on lifting plate and controls mounting bracket and carries out horizontal displacement.The fixed corresponding relationship of the detection position of the utility model laser sensor and the cutting position of cutting knife, cutting action triggered by detection signal has no position deviation, ensure that the position of cutting knife and the pit position of sensor detection accurately match when pressing down, avoid misplacement to cause influence to subsequent process.

Description

Technical Field

[0001] This utility model relates to the field of cutting positioning compensation technology, specifically to an automatic cutting positioning error compensation device. Background Technology

[0002] Cutting equipment, also known as a cutting machine, is a mechanical device that precisely separates materials into predetermined sizes and shapes. It can transform raw materials into semi-finished products that meet production requirements. In the production process of aluminum-plastic film products, aluminum-plastic film needs to go through core processes such as stamping, cutting, and heat sealing. After the stamping process, the aluminum-plastic film will form a pre-set indentation. In the subsequent cutting operation, the relative positional deviation between the indentation and the two cutting edges of the aluminum-plastic film after cutting needs to be small to meet the accuracy requirements of subsequent assembly and heat sealing processes.

[0003] After the aluminum-plastic film is stamped, the feeding rollers need to convey the stamped aluminum-plastic film to the cutting area. However, due to the slippage between the feeding rollers and the aluminum-plastic film during the feeding process, the areas to be cut on both sides of the aluminum-plastic film's indentation are difficult to align with the cutting blade, resulting in a large deviation in the relative position of the indentation and the cutting edges on both sides of the cut aluminum-plastic film.

[0004] To address the issue of cutting position deviation, existing equipment uses laser sensors to detect the actual movement position of the aluminum-plastic film recesses. Then, a compensation motor drives the cutting blade to perform displacement compensation, moving the cutting blade to the preset cutting position corresponding to the aluminum-plastic film recesses to complete the cutting. However, during the process of the compensation motor driving the cutting blade displacement, factors such as mechanical backlash and motor step loss can easily cause a deviation between the actual displacement of the cutting blade and the commanded displacement, leading to cutting misalignment and affecting subsequent assembly, heat sealing, and other processes.

[0005] To address this, an automatic compensation device for cutting positioning errors is proposed. Utility Model Content

[0006] The purpose of this invention is to provide an automatic compensation device for cutting positioning errors, so as to solve the problem mentioned in the background art where the actual displacement of the cutting blade deviates from the commanded displacement during the movement of the cutting blade driven by the compensation motor, causing cutting misalignment.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] An automatic compensation device for cutting positioning error includes an aluminum-plastic film forming machine. The aluminum-plastic film forming machine is provided with a stamping area, a conveying area, and a cutting table. The cutting table is provided with a cutting blade for cutting the stamped aluminum-plastic film and laser sensors on both sides of the cutting blade for identifying the dents after stamping. The cutting table is provided with a lifting assembly, which includes a lifting plate for lifting displacement. The cutting blade and laser sensors are both mounted on a mounting frame. The mounting frame is mounted on the lifting plate and moves synchronously with the lifting plate. The lifting plate is provided with a drive assembly for controlling the horizontal displacement of the mounting frame.

[0009] Preferably, in the lifting assembly, the lifting plate is slidably mounted on the guide rod, the guide rod is provided with a hydraulic rod for controlling the lifting plate to press down along the guide rod to cut the aluminum-plastic film, and the lifting plate is provided with a guide rail for guiding the movement of the mounting frame.

[0010] Preferably, the drive assembly includes racks disposed at both ends of the mounting bracket, gears meshing with the racks, a rotating shaft connecting the gears at both ends of the mounting bracket, a worm gear disposed at one end of the rotating shaft and rotating synchronously with the rotating shaft, a worm meshing with the worm gear, and a first motor driving the worm gear to rotate.

[0011] Preferably, connecting frames are provided on both sides of the mounting frame, a second motor is provided on the connecting frame, a bidirectional threaded rod is connected to the output end of the second motor, and a slide rod parallel to the bidirectional threaded rod is provided on the connecting frame.

[0012] Preferably, the laser sensor is mounted on a movable base, and the movable bases on the two laser sensors are respectively threadedly connected to both ends of the bidirectional threaded rod, and the movable base is slidably mounted on the slide rod.

[0013] Preferably, the connecting frame is provided with a scale for displaying relative distance on both sides, and the movable base is provided with pointers corresponding to the scale at both ends.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The laser sensor of this utility model has a fixed correspondence with the cutting position of the cutting blade. The cutting action triggered by the detection signal has no positional deviation, ensuring that the position of the cutting blade pressing down is accurately matched with the position of the pit detected by the sensor, thus avoiding misalignment from affecting subsequent processes.

[0016] 2. This utility model achieves synchronous and reverse horizontal adjustment of two laser sensors, ensuring that the actual distance between the cutting blade and the aluminum-plastic film recess can be flexibly adjusted to meet the cutting requirements of aluminum-plastic film semi-finished products of different specifications. This avoids the inability to adapt to various working conditions due to fixed sensors, which would affect subsequent processes.

[0017] 3. This utility model has scales on both sides of the connecting frame to display the relative distance, and corresponding pointers at both ends of the moving base, which can intuitively display the moving distance of the two laser sensors, making it easy for operators to quickly understand the accuracy of the laser sensor movement and the symmetry of the movement of the two laser sensors, and ensuring adjustment accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the cutting table according to an embodiment of the present invention;

[0020] Figure 3 This is a structural schematic diagram of the lifting plate from the bottom view of an embodiment of the present utility model;

[0021] Figure 4 This is a structural schematic diagram of the lifting plate from the top view of an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the drive component according to an embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of the mounting bracket according to an embodiment of the present utility model.

[0024] In the diagram: 1. Aluminum-plastic film forming machine; 2. Stamping area; 3. Conveying area; 4. Cutting table; 5. Cutting knife; 6. Laser sensor; 7. Lifting assembly; 701. Lifting plate; 702. Guide rod; 703. Hydraulic rod; 704. Guide rail; 8. Mounting frame; 801. Connecting frame; 802. Second motor; 803. Bidirectional threaded rod; 804. Slide rod; 805. Moving seat; 806. Pointer; 807. Scale; 9. Drive assembly; 901. Rack; 902. Gear; 903. Rotating shaft; 904. Worm gear; 905. Worm; 906. First motor. Detailed Implementation

[0025] To facilitate the resolution of the problems, 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Example

[0027] like Figures 1 to 5As shown, this embodiment provides an automatic compensation device for cutting positioning error, including an aluminum-plastic film forming machine 1. The aluminum-plastic film forming machine 1 is provided with a stamping area 2, a conveying area 3 and a cutting table 4. The cutting table 4 is provided with a cutting knife 5 for cutting the stamped aluminum-plastic film and laser sensors 6 provided on both sides of the cutting knife 5 for identifying the dents after stamping.

[0028] The cutting table 4 is equipped with a lifting assembly 7, which includes a lifting plate 701 for lifting and displacement. The cutting blade 5 and the laser sensor 6 are both mounted on a mounting frame 8. The mounting frame 8 is mounted on the lifting plate 701 and moves synchronously with the lifting plate 701. The lifting plate 701 is equipped with a drive assembly 9 for controlling the horizontal displacement of the mounting frame 8.

[0029] In the lifting assembly 7, the lifting plate 701 is slidably mounted on the guide rod 702. The guide rod 702 is provided with a hydraulic rod 703 for controlling the lifting plate 701 to press down along the guide rod 702 to cut the aluminum-plastic film. The lifting plate 701 is provided with a guide rail 704 for guiding the movement of the mounting frame 8.

[0030] The drive assembly 9 includes racks 901 disposed at both ends of the mounting bracket 8, gears 902 meshing with the racks 901, a rotating shaft 903 connecting the gears 902 at both ends of the mounting bracket 8, a worm gear 904 disposed at one end of the rotating shaft 903 and rotating synchronously with the rotating shaft 903, a worm 905 meshing with the worm gear 904, and a first motor 906 driving the worm 905 to rotate.

[0031] Specifically, after the equipment is started, the aluminum-plastic film forming machine 1 begins to work. The aluminum-plastic film raw material first enters the stamping area 2 of the aluminum-plastic film forming machine 1, and the recess stamping is completed in the stamping area 2. The stamped aluminum-plastic film is then smoothly conveyed to the cutting table 4 through the conveying area 3 of the aluminum-plastic film forming machine 1.

[0032] The lifting plate 701 in the lifting assembly 7 is slidably mounted on the guide rod 702. In the initial state, the lifting plate 701 is in the raised position to ensure that the aluminum-plastic film is smoothly transported to the bottom of the cutting knife 5. The cutting knife 5 and the laser sensors 6 set on both sides of the cutting knife 5 are fixed on the mounting frame 8. The mounting frame 8 is mounted on the lifting plate 701 and can complete the lifting action synchronously with the lifting plate 701.

[0033] When the conveying area 3 conveys the stamped aluminum-plastic film to the preset cutting position of the cutting table 4, the drive component 9 starts to work. The first motor 906 starts and drives the worm 905 to rotate. Since the worm 905 meshes with the worm wheel 904, the worm wheel 904 rotates synchronously with the worm 905 and drives the rotating shaft 903 to rotate. When the rotating shaft 903 rotates, it drives the gears 902 at both ends to rotate synchronously. The gears 902 mesh with the racks 901 at both ends of the mounting frame 8, thereby driving the mounting frame 8 to move horizontally along the guide rail 704 on the lifting plate 701. The mounting frame 8 drives the cutting knife 5 and the laser sensor 6 to move horizontally synchronously until the laser sensor 6 on the front side of the cutting knife 5 accurately identifies the pits in the stamped aluminum-plastic film.

[0034] After the laser sensor 6 on the front side detects the preset pit, the hydraulic rod 703 in the lifting assembly 7 is activated, pushing the lifting plate 701 to move downward smoothly along the guide rod 702. The lifting plate 701 drives the mounting frame 8, the cutting blade 5 and the laser sensor 6 to move downward synchronously until the cutting blade 5 contacts the aluminum-plastic film and completes the single-sided cutting action.

[0035] After the cutting is completed, the hydraulic rod 703 drives the lifting plate 701 to return to its original position along the guide rod 702. The conveying area 3 continues to convey the aluminum-plastic film. When the laser sensor 6 on the back of the cutting blade 5 detects the pit in the aluminum-plastic film, the hydraulic rod 703 is activated, driving the cutting blade 5 to move downward until the cutting blade 5 contacts the aluminum-plastic film and completes the cutting action on the other side, thereby completing the cutting of a single aluminum-plastic film semi-finished product.

[0036] The first motor 906 starts in reverse. Through the coordinated operation of the worm 905, worm wheel 904, rotating shaft 903, gear 902 and rack 901, it drives the mounting frame 8 to return to horizontal reset along the guide rail 704. The conveying area 3 continues to convey the next section of stamped aluminum-plastic film. The above process is repeated to realize continuous batch cutting of aluminum-plastic film semi-finished products and complete the entire cutting positioning compensation work.

[0037] The cutting blade 5 on the cutting table 4 and the laser sensors 6 on both sides are all mounted on the mounting bracket 8. The mounting bracket 8 and the lifting plate 701 move synchronously to ensure that the detection position of the laser sensor 6 and the cutting position of the cutting blade 5 form a fixed correspondence. The signal of the laser sensor 6 accurately identifying the pit can directly trigger the cutting action of the cutting blade 5 without additional displacement compensation. This avoids the deviation that may be caused by driving the cutting blade 5 alone, ensuring that the position of the cutting blade 5 pressing down is accurately matched with the position of the pit detected by the sensor. Moreover, the cutting command is triggered after the laser sensor 6 identifies the pit. Even if the first motor 906 has an inaccurate displacement, it is difficult to affect the identification of the laser sensor 6, avoiding the impact of cutting misalignment on subsequent processes and realizing automatic compensation for cutting positioning error.

[0038] When the distance between two adjacent dimples is less than the distance between the two laser sensors 6, the front laser sensor 6 triggers the hydraulic rod 703 to press down and cut, and at the same time sends a trigger signal to the control system. Upon receiving the signal, the control system immediately locks the cutting trigger function of the front laser sensor 6. Throughout the entire process of the aluminum-plastic film being transported to the rear laser sensor 6 to identify the dimple, the cutting trigger command of the front laser sensor 6 is continuously blocked, only the dimple identification function is retained, and no pressing signal is sent to the lifting assembly 7. Only when the rear laser sensor 6 completes the cutting on the other side, the lifting plate 701 is reset, and the mounting bracket 8 is horizontally reset, does the control system release the locking and blocking of the front laser sensor 6 and restore its normal trigger function. This ensures that even if the front laser sensor 6 identifies a dimple again during the transport of the aluminum-plastic film after single-sided cutting, it cannot trigger the cutting action. After the rear laser sensor 6 triggers the hydraulic rod 703 to press down and cut, the drive assembly 9 controls the mounting bracket 8 to move, so that the front laser sensor 6 moves to the corresponding dimple, which facilitates the corresponding pressing and cutting function.

[0039] See Figure 6 The mounting bracket 8 has a connecting bracket 801 on both sides. A second motor 802 is installed on the connecting bracket 801. A bidirectional threaded rod 803 is connected to the output end of the second motor 802. A slide rod 804 parallel to the bidirectional threaded rod 803 is installed on the connecting bracket 801.

[0040] The laser sensor 6 is mounted on the movable seat 805. The movable seats 805 on the two laser sensors 6 are respectively connected to the two ends of the bidirectional threaded rod 803 by threads, and the movable seats 805 are slidably mounted on the slide rod 804.

[0041] The connecting frame 801 is equipped with a scale 807 on both sides to display the relative distance, and the movable base 805 is equipped with pointers 806 at both ends corresponding to the scale 807.

[0042] Specifically, the distance between the laser sensor 6 and the cutting blade 5 is adjusted according to different cutting requirements. The second motor 802 is started, and the second motor 802 drives the bidirectional threaded rod 803 to rotate. Since the two movable seats 805 are respectively connected to the two ends of the bidirectional threaded rod 803 by threads, and the movable seats 805 are slidably set on the slide rod 804, when the bidirectional threaded rod 803 rotates, it drives the two movable seats 805 to move horizontally in opposite directions along the slide rod 804 in a synchronous manner. The movable seats 805 drive the laser sensor 6 to move synchronously.

[0043] During the adjustment process, the moving base 805 drives the pointer 806 to move synchronously. The correspondence between the pointer 806 and the scale 807 can intuitively display the adjustment displacement of a single laser sensor 6, which makes it easy for operators to quickly judge whether the current distance meets the preset standard, accurately control the calibration range, ensure the symmetry of the adjustment of the two laser sensors 6, ensure calibration accuracy, and avoid deviations in the displacement of the moving base 805 due to mechanical gaps, wear and other problems that are not detected in time, thus avoiding inaccurate detection position of the laser sensor 6 and cutting misalignment problems.

[0044] By adjusting the distance between the laser sensor 6 and the cutting blade 5, the cutting requirements of aluminum-plastic film semi-finished products of different specifications can be adapted, avoiding the inability to adapt to various working conditions due to the fixed sensor distance, which would affect subsequent processes and ensure the universality and accuracy of cutting positioning.

[0045] Working principle: After the equipment is started, the second motor 802 on the connecting frame 801 is started, which drives the bidirectional threaded rod 803 to rotate, which drives the movable seat 805, which is threaded to both ends of the threaded rod, to move synchronously in the opposite direction along the slide rod 804. The movable seat 805 drives the laser sensor 6 to move. The operator uses the pointer 806 on the movable seat 805 and the scale 807 on the connecting frame 801 to accurately calibrate the sensor spacing to the preset standard. Then the aluminum-plastic film forming machine 1 works. The aluminum-plastic film raw material is punched with indentations in the stamping area 2 and then conveyed to the cutting table 4 by the conveying area 3.

[0046] The lifting plate 701 of the lifting assembly 7 is initially in the raised position. The cutting blade 5 and the laser sensors 6 on both sides are fixed on the mounting bracket 8, which is installed on the lifting plate 701. When the aluminum-plastic film reaches the preset position, the first motor 906 of the drive assembly 9 starts, driving the worm gear 905, worm wheel 904, and rotating shaft 903 to rotate in sequence. The rotating shaft 903 drives the gears 902 at both ends to mesh with the racks 901 at both ends of the mounting bracket 8, causing the mounting bracket 8 to move horizontally along the guide rail 704 until the front laser sensor 6 detects the recess in the aluminum-plastic film.

[0047] Hydraulic rod 703 is activated, pushing lifting plate 701 down along guide rod 702, driving cutting blade 5 to press down and complete single-sided cutting. Then lifting plate 701 is reset, aluminum-plastic film continues to be conveyed. After the rear laser sensor 6 detects the pit, hydraulic rod 703 is activated again, cutting blade 5 presses down to complete cutting on the other side, thus completing the cutting of a single semi-finished product. After completion, first motor 906 is activated in reverse, driving mounting frame 8 to reset horizontally, and conveying area 3 conveys the next section of aluminum-plastic film. The above process is repeated to achieve continuous batch cutting and automatic compensation for positioning errors.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic compensation device for cutting and positioning errors, comprising an aluminum-plastic film forming machine (1), wherein the aluminum-plastic film forming machine (1) is provided with a stamping area (2), a conveying area (3), and a cutting table (4), characterized in that: The cutting table (4) is equipped with a cutting knife (5) for cutting the stamped aluminum-plastic film and laser sensors (6) on both sides of the cutting knife (5) for identifying the stamped pits. The cutting table (4) is provided with a lifting assembly (7), and the lifting assembly (7) is provided with a lifting plate (701) for lifting displacement. The cutting blade (5) and the laser sensor (6) are both provided on the mounting frame (8). The mounting frame (8) is provided on the lifting plate (701) and moves synchronously with the lifting plate (701). The lifting plate (701) is provided with a drive assembly (9) for controlling the horizontal displacement of the mounting frame (8).

2. The automatic compensation device for cutting positioning error according to claim 1, characterized in that: In the lifting assembly (7), the lifting plate (701) is slidably mounted on the guide rod (702). The guide rod (702) is provided with a hydraulic rod (703) for controlling the lifting plate (701) to press down along the guide rod (702) to cut the aluminum-plastic film. The lifting plate (701) is provided with a guide rail (704) for guiding the movement of the mounting frame (8).

3. The automatic compensation device for cutting positioning error according to claim 1, characterized in that: The drive assembly (9) includes a rack (901) disposed at both ends of the mounting frame (8), a gear (902) meshing with the rack (901), a shaft (903) connecting the gears (902) at both ends of the mounting frame (8), a worm wheel (904) disposed at one end of the shaft (903) and rotating synchronously with the shaft (903), a worm (905) meshing with the worm wheel (904), and a first motor (906) driving the worm (905) to rotate.

4. The automatic compensation device for cutting positioning error according to claim 1, characterized in that: Both sides of the mounting bracket (8) are provided with connecting brackets (801), and a second motor (802) is provided on the connecting bracket (801). A bidirectional threaded rod (803) is connected to the output end of the second motor (802), and a slide rod (804) parallel to the bidirectional threaded rod (803) is provided on the connecting bracket (801).

5. The automatic compensation device for cutting positioning error according to claim 4, characterized in that: The laser sensor (6) is mounted on a movable seat (805). The movable seats (805) on the two laser sensors (6) are respectively connected to the two ends of the bidirectional threaded rod (803) by threads, and the movable seats (805) are slidably mounted on the slide rod (804).

6. The automatic compensation device for cutting positioning error according to claim 5, characterized in that: The connecting frame (801) is provided with a scale (807) on both sides to display the relative distance, and the movable base (805) is provided with a pointer (806) at both ends corresponding to the scale (807).

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