Automatic edge cutting machine and edge cutting method for paper-plastic product processing

Abstract

The invention provides an automatic edge cutting machine for paper-plastic product processing and an edge cutting method. The automatic edge cutting machine for paper-plastic product processing is characterized in that an edge cutting device is arranged in a rack, and an edge cutting area is arranged below the edge cutting device; the driving mechanism is arranged on the machine frame in a sliding mode, moves in the length direction of the machine frame and passes through the edge cutting area; the material moving mechanism is mounted on the driving mechanism, and comprises a first tray arranged above the material moving mechanism, and the first tray is used for bearing paper-plastic products; an edge cutting gap for an edge cutting knife group of the edge cutting device to pass through is formed between the second edge cutting plate and the first tray; and the second edge cutting plate is arranged on the material moving mechanism in a liftable manner, so that a height difference for separating edge materials and finished products of the paper-plastic products is formed between the second edge cutting plate and the first tray. The technical problems that in the prior art, after paper-plastic products are trimmed, finished products and offcut are mixed together and are not prone to being separated, and manual sorting is needed are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of paper and plastic product processing devices, and in particular to an automatic trimming machine and a trimming method for paper and plastic product processing. Background Art

[0002] Some paper plastic products are usually produced by molding devices. The raw materials are formed by stamping in a molding machine, and then the wet blanks are hot-pressed and formed by a shaping machine. Finally, the paper plastic products are trimmed by a trimming machine to obtain finished products. The trimming process is completed by the trimming machine. The paper plastic products before trimming include multiple finished paper plastic products and edge materials connected between the finished products. The trimming process is to disconnect the connection between the finished products and the edge materials. After trimming, unloading is required, that is, the pulp molded products are taken out of the trimming machine and stacked on the receiving table.

[0003] However, there is at least one of the following problems in the related art: in the prior art, after the paper-plastic product is trimmed, the finished product and the trimmings are mixed together and are difficult to separate, requiring manual sorting. Summary of the invention

[0004] The technical problem solved by the present invention is that in the prior art, after the paper-plastic product is trimmed, the finished product and the trimmings are mixed together and are difficult to separate, requiring manual sorting.

[0005] In order to solve the above problems, the present invention provides an automatic trimming machine for processing paper and plastic products, which comprises: a frame, a trimming device is arranged in the frame, and a trimming area is arranged below the trimming device; a driving mechanism, which is slidably arranged on the frame, moves along the length direction of the frame, and the driving mechanism passes through the trimming area; a material moving mechanism, which is installed on the driving mechanism, and the material moving mechanism comprises: a first tray, which is arranged above the material moving mechanism, and the first tray is used to carry paper and plastic products; a second trimming plate, which is arranged opposite to the first tray, and a trimming gap is provided between the second trimming plate and the first tray for a trimming knife group of the trimming device to pass through; wherein the second trimming plate can be liftably arranged on the material moving mechanism, so that a height difference is formed between the second trimming plate and the first tray to separate the edge material and the finished product of the paper and plastic product.

[0006] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by setting the mold for cutting the paper plastic product separately and setting the cutting gap between the second trimming plates, the structure is simplified, making the mold module easy to produce and reduce the cost; on the other hand, through the height difference between the second trimming plate and the first tray, the edge material and the finished product of the paper plastic product can be located at different heights, thereby making it easy to separate the two.

[0007] In one example of the present invention, the automatic trimming machine for processing paper and plastic products also includes a discharge device, which is located on one side of the frame in the length direction and is used to unload the paper and plastic products on the material transfer mechanism; wherein, when the material transfer mechanism moves to the bottom of the discharge device, the second trimming plate moves up and down relative to the first tray to separate the edge material and the finished product of the paper and plastic product.

[0008] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: when a height difference occurs between the edge material and the finished product of the paper and plastic product, a discharging device is used to discharge and clean the two separately, so that the finished product and the edge material can be quickly separated.

[0009] In an example of the present invention, the material transfer mechanism further comprises a first trimming plate, which is detachably mounted on the first tray; wherein the trimming gap is formed between the second trimming plate and the first trimming plate.

[0010] Compared with the prior art, the technical effect achieved by adopting this technical solution is that the second trimming plate and the first trimming plate can be detachably arranged on the material shifting mechanism, which can make the trimming mold more modular and adaptable to a variety of different paper-plastic product models.

[0011] In an example of the present invention, the material transfer mechanism further includes a second tray, the second tray is located below the first tray, and the first trimming plate is detachably mounted on the second tray; wherein a lifting device is provided under the second tray to control the lifting movement of the second tray.

[0012] Compared with the prior art, the technical effect achieved by adopting this technical solution is that the lifting device and the second tray control the lifting movement of the second trimming board, so that the lifting movement of multiple first trimming boards is more uniform and the cutting is more efficient.

[0013] In one example of the present invention, the automatic trimming machine for processing paper and plastic products also includes a calibration device, wherein the calibration mechanism is arranged above the trimming area, and the calibration mechanism includes: a first sensor, which is slidably arranged on the periphery of the calibration mechanism, and the first sensor is used to measure the position offset of the paper and plastic product relative to the material moving mechanism; a correction component, which is arranged below the calibration mechanism, and the correction component corrects the placement position of the paper and plastic product according to the position offset; and a limit component, which is arranged below the calibration mechanism to limit the paper and plastic product.

[0014] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: through the calibration mechanism, when the position of the paper and plastic product deviates, it can be corrected in time, thereby reducing the defective rate of the paper and plastic product and improving the overall product quality.

[0015] In one example of the present invention, a vacuum suction cup is provided below the material moving mechanism, and the material moving mechanism is provided with a first opening for the vacuum suction cup to pass through, and the vacuum suction cup is used to suck and limit the paper-plastic product; wherein the vacuum suction cup cooperates with the limiting assembly to limit the paper-plastic product.

[0016] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: the paper and plastic products are limited by the limiting assembly and the vacuum suction cup at the same time, so that the paper and plastic products are not easily offset in the vertical direction, thereby reducing the defective rate of paper and plastic products.

[0017] On the other hand, the present invention also provides a trimming method, including the automatic trimming machine for processing paper and plastic products in the above-mentioned embodiment, the trimming method is applied to the above-mentioned automatic trimming machine for processing paper and plastic products, and the trimming method includes: placing the paper and plastic products on a first tray, and controlling the first tray to move from a feeding area to a trimming area; controlling a first sensor to measure whether the actual placement position of the paper and plastic products deviates from a specified placement position in a two-dimensional direction; if so, controlling a correction component to adjust the paper and plastic products to a specified placement position in a two-dimensional direction; if not, controlling a limit component to limit the position of the paper and plastic products; controlling the first sensor to collect image information of the paper and plastic products, and judging whether there are abnormal protrusions on the paper and plastic products based on the image information; if so, defining the portion of the trimming area that falls within the range of the second trimming plate as the first The invention relates to a method for detecting an abnormal protrusion in a first area, wherein the part outside the first trimming plate is the second area, and determining whether the abnormal protrusion falls into the first area; if the abnormal protrusion falls into the first area, controlling the first sensor to move along the vertical height direction and measuring the abnormal protrusion to simulate the first appearance feature of the abnormal protrusion; establishing a historical database, wherein the historical database includes different abnormal features and a first pressing force bound to the abnormal features; matching the first appearance feature with the abnormal feature to obtain a first pressing force associated with the first appearance feature; controlling the pressing plate in the trimming device to move to above the abnormal protrusion, and pressing the abnormal protrusion according to the first pressing force; controlling the trimming device to trim the paper and plastic products, and transferring the trimmed paper and plastic products to the bottom of the discharging device for unloading through the material transfer mechanism.

[0018] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: through the cooperation between the first sensor and the correction component in the calibration mechanism, the finished product after cutting can be kept as consistent as possible, thereby reducing the defective rate of the finished product, and then the abnormal protrusions on the paper plastic product on the pressing plate member arranged in the trimming device can be corrected, so that the pressed plastic product can be made as flat as possible, further improving the quality of the finished product.

[0019] In one embodiment of the present invention, controlling the correction component to adjust the paper-plastic product to the designated placement position in a two-dimensional direction also includes: the first sensor has different first preset positions and second preset positions in the first direction of the calibration mechanism, controlling the first sensor to measure the offset of the actual placement position relative to the designated placement position in the direction of the first preset position and the second preset position, obtaining a first offset distance and a second offset distance, and judging whether the first offset distance and the second offset distance are equal; if so, controlling the correction component to adjust the paper-plastic product in the first direction according to the first offset distance; controlling the first sensor to move to the second direction of the calibration mechanism, measuring the offset of the actual placement position relative to the designated placement position, obtaining a third offset distance, and controlling the correction component to adjust the paper-plastic product in the second direction according to the third offset distance; if not, controlling the correction component to adjust the paper-plastic product at the first preset position and the second preset position in the first direction, so that the first offset distance and the second offset distance are equal.

[0020] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by adjusting at different first preset positions and second preset positions, the angle offset of the paper-plastic product can be adjusted, and then the offset amount in two different directions can be adjusted to return the paper-plastic product to its original position.

[0021] After adopting the technical solution of the present invention, the following technical effects can be achieved: (1) By setting the mold for cutting the paper plastic product separately and setting the cutting gap between the second trimming plates, not only the structure is simplified, the mold module is easy to manufacture and the cost is reduced; on the other hand, the height difference between the second trimming plate and the first tray can place the edge material and the finished product of the paper plastic product at different heights, so that the two can be easily separated; (2) Through the cooperation between the first sensor and the correction component in the calibration mechanism, the finished products after cutting can be kept as consistent as possible, thereby reducing the defective rate of the finished products. The abnormal protrusions on the paper-molded products can be corrected by the pressing plate provided in the trimming device, so that the pressed products can be made as flat as possible, further improving the quality of the finished products. (3) By adjusting at different first preset positions and second preset positions, the angle offset of the paper-plastic product can be adjusted. By adjusting the offset in two different directions, the paper-plastic product can be returned to its original position. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings to be used in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Figure 1 A schematic structural diagram of an automatic edge trimming machine for processing paper and plastic products provided in the first embodiment of the present invention; Figure 2 for Figure 1 A magnified view of the local structure of part A; Figure 3 for Figure 1 Partial structural diagram of the automatic trimming machine for paper and plastic products processing; Figure 4 for Figure 1 Partial structural diagram of the automatic trimming machine for paper and plastic products processing; Figure 5 A schematic flow chart of a trimming method provided in Embodiment 2 of the present invention.

[0023] Description of reference numerals: 1. Automatic trimming machine for paper and plastic product processing; 10. Frame; 11. Trimming device; 12. Trimming area; 13. Feeding area; 14. Discharging area; 15. Vacuum suction cup; 20. Driving mechanism; 21. Guide rail; 30. Material transfer mechanism; 31. First tray; 311. First trimming plate; 32. Second tray; 321. Second trimming plate; 33. Trimming gap; 34. Lifting device; 40. Calibration mechanism; 41. First sensor; 42. Correction assembly; 43. Limit assembly; 44. Slide rail. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] Embodiment 1: See also Figures 1 to 4The present invention provides an automatic trimming machine 1 for processing paper and plastic products. The automatic trimming machine 1 for processing paper and plastic products comprises: a frame 10, a driving mechanism 20 and a material shifting mechanism 30. A control console is provided on the top of the frame 10. The frame 10 is provided with a feeding area 13 and a discharging area 14. A trimming device 11 is provided below the frame 10. The trimming device 11 is connected to the frame 10 through a guide rod. A trimming area 12 is provided below the trimming device 11. When the trimming device 11 performs a trimming action, the control console controls the trimming device 11 to move downward so that the trimming device 11 is close to the trimming area 12 below it; the driving mechanism 20 is slidably arranged on the frame 10, and a guide rail 21 is provided in the length direction of the frame 10. The driving mechanism 20 is arranged on the guide rail 21 and moves along the length direction of the frame 10, and the driving mechanism 20 passes through the trimming area 12; the material shifting mechanism 30 is installed on the driving mechanism 20, and moves in the frame 10 along the guide rail 21 under the drive of the driving mechanism 20.

[0026] The material transfer mechanism 30 includes a first tray 31 and a second trimming plate 321 . The first tray 31 is arranged above the material transfer mechanism 30. The first tray 31 has a horizontal bearing platform, and the first tray 31 is used to carry paper and plastic products. In the embodiment of the present application, the paper and plastic products are paper and plastic boxes, and the appearance is the style of ordinary lunch boxes. The paper and plastic products are inverted on the first tray 31; there are multiple second trimming plates 321, and the second trimming plates 321 and the first tray 31 are arranged opposite to each other. The first tray 31 is provided with multiple openings. The second trimming plates 321 are arranged at the openings of the first tray 31, and there is a trimming gap 33 between the second trimming plates 321 and the first tray 31 for the trimming knife group of the trimming device 11 to pass through; wherein the second trimming plates 321 can be arranged on the material transfer mechanism 30 in a liftable manner, so that a height difference is formed between the second trimming plates 321 and the first tray 31 to separate the edge material and the finished product of the paper and plastic products. When the trimming device 11 completes the trimming action, the material transfer mechanism 30 moves to the discharge area 14, and at this time, the second trimming plates 321 are lifted and lowered to separate the finished product and the edge material of the paper and plastic products.

[0027] Preferably, the second trimming plate 321 is detachably arranged on the material transfer mechanism 30, and the trimming gap 33 between the second trimming plate 321 and the first tray 31 can also be changed with the second trimming plate 321 as needed. Such an arrangement can make the automatic trimming machine 1 for processing paper and plastic products more modular and adapt to industrial needs.

[0028] By setting the second trimming plate and the first tray separately and setting the trimming gap 33 between the second trimming plates 321, not only the structure is simplified, the material transfer mechanism 30 is made more modular, easier to manufacture and the manufacturing cost is reduced; on the other hand, through the height difference between the second trimming plate 321 and the first tray 31, the edge material and the finished product of the paper plastic product can be placed at different heights, thereby making it easy to separate the two.

[0029] Furthermore, the automatic trimming machine 1 for processing paper and plastic products also includes a discharge device, and the discharge area 14 is arranged below the discharge device, the discharge device is arranged on one side in the length direction of the frame 10, and is used to discharge the paper and plastic products on the material transfer mechanism 30; wherein, when the material transfer mechanism 30 moves to the discharge area 14 below the discharge device, the second trimming plate 321 is lifted and lowered relative to the first tray 31 to separate the edge material of the paper and plastic products from the finished product. When there is a height difference between the edge material and the finished product of the paper and plastic product, the discharge device is used to discharge and clean the two separately, so that the finished product and the edge material can be quickly separated.

[0030] Preferably, the second trimming plate 321 can be raised, and when the bottom of the finished product is higher than the top of the edge material, the finished product can be unloaded, and then the second trimming plate 321 is lowered to the same horizontal height as the first pallet 31. When the second trimming plate 321 is at the same height as the first pallet 31, the edge material can be unloaded.

[0031] On the other hand, the second trimming plate 321 can sink, and when the bottom of the edge material is higher than the top of the finished product, the edge material can be unloaded. Then, the second trimming plate 321 is raised to the same level as the first pallet 31, and the finished product can be unloaded. The specific behavior of the second trimming plate 321 depends on the needs of the production situation.

[0032] Furthermore, the discharging device can be a cleaning device arranged above the frame 10, which cleans the finished products or leftover materials into the cargo box; the discharging device can also be an air outlet device arranged beside the frame 10, which blows the finished products or leftover materials into the cargo box through the wind force of the air outlet device.

[0033] Preferably, the material moving mechanism 30 also includes a first trimming plate 311, and the first trimming plate 311 is provided in plurality, and the first trimming plate 311 is provided at the opening of the first tray 31, and the first trimming plate 311 is detachably mounted on the first tray 31, and the first trimming plate 311 also has an opening, and the second trimming plate 321 is located in the opening of the first trimming plate 311; wherein, a trimming gap 33 is formed between the second trimming plate 321 and the first trimming plate 311, and the outer edge of the second trimming plate 321 and the inner edge of the first trimming plate 311 cooperate with each other to form the trimming gap 33.

[0034] The second trimming plate 321 and the first trimming plate 311 are both detachably arranged on the material moving mechanism 30 , which can make the trimming mold more modular to adapt to a variety of different paper-plastic product models.

[0035] Preferably, when the automatic trimming machine 1 for processing paper and plastic products is working, the first tray 31 and the first trimming plate 311 are in a relatively static state.

[0036] Specifically, the material transfer mechanism 30 also includes a second pallet 32, which is located below the first pallet 31, and the second trimming plate 321 is detachably mounted on the second pallet 32, and the second trimming plate 321 and the second pallet 32 ​​are relatively stationary; wherein, a lifting device 34 is provided under the second pallet 32, and the upper end of the lifting device 34 is connected to the second pallet 32 ​​to control the lifting movement of the second pallet 32, thereby creating a height difference between the second trimming plate 321 and the first trimming plate 311.

[0037] The lifting device 34 and the second tray 32 control the lifting movement of the second trimming plate 321, so that the lifting movement of the plurality of first trimming plates 311 is more uniform and the cutting is more efficient.

[0038] In addition, the automatic trimming machine 1 for processing paper and plastic products also includes a calibration mechanism 40, which is arranged below the console and above the trimming area 12. The main body of the calibration mechanism 40 is a calibration platform, and the calibration mechanism 40 includes a first sensor 41, a correction component 42 and a limit component 43. The first sensor 41 is slidably arranged on the side of the calibration mechanism 40, and a slide rail 44 is arranged on the side of the calibration platform. A slider is arranged on the first sensor 41, and the slider cooperates with the slide rail 44 so that the first sensor 41 can move along the slide rail 44 on the side of the calibration platform. The first sensor 41 is used to measure the position offset of the paper plastic product relative to the material shifting mechanism 30; the correction component 42 is arranged below the calibration mechanism 40, and the correction component 42 corrects the placement position of the paper plastic product according to the position offset. The correction component 42 has multiple correction units, so that the correction component 42 can correct the paper plastic product from multiple directions; the limit component 43 is arranged below the calibration mechanism 40 to limit the paper plastic product. The limit component 43 also has multiple limit units. When the correction component 42 completes the position correction of the paper plastic product, the multiple limit units are pressed down to limit the position of the paper plastic product. Through the calibration mechanism 40, when the position of the paper plastic product deviates, it can be corrected in time, thereby reducing the defective rate of the finished product and improving the overall product quality.

[0039] Specifically, the calibration platform has four planes for the first sensor 41 to move, and each plane is in a different direction. The first sensor 41 measures the position offset of the paper plastic product relative to the material transfer mechanism 30 in the direction of the plane from the four planes. At the same time, the first sensor 41 will measure twice at different positions on each plane to measure whether the paper plastic product has an angular offset in the direction of each plane; accordingly, at least two correction units are provided on each plane to correct the angle and offset distance of the paper plastic product at the same time.

[0040] Preferably, a vacuum suction cup 15 is provided below the material transfer mechanism 30, and the material transfer mechanism 30 is provided with a first opening for the vacuum suction cup 15 to pass through, and the first opening is provided inside the second trimming plate 321, and the vacuum suction cup 15 is used to suck and limit the paper plastic product; wherein, the vacuum suction cup 15 cooperates with the limiting assembly 43 to limit the paper plastic product. When the surface of the paper plastic product is not flat enough, the limiting effect of the limiting unit is not good enough at this time, and the vacuum suction cup 15 is used to suck and tighten it inside the paper plastic product, so that the paper plastic product is not easy to deviate in the vertical direction, thereby reducing the defective rate of the finished product.

[0041] Furthermore, the vacuum suction cup 15 is installed at the bottom of the frame 10 through a telescopic connecting rod. When using the vacuum suction cup 15, first adjust the position of the vacuum suction cup 15 so that it is close to the top inside the finished product. When the vacuum suction cup sucks the paper plastic product tightly, adjust the vacuum suction cup 15 to the normal preset position of the paper plastic product.

[0042] Embodiment 2: See also Figure 5 The present invention also provides a trimming method, combined with Figures 1 to 4 The trimming method is applied to the automatic trimming machine 1 for processing paper and plastic products in the first embodiment above, and the trimming method includes: Step S1, placing the paper-plastic product on a first tray, and controlling the first tray to move from a feeding area to a trimming area through a control console; Step S2, controlling the first sensor to measure whether the actual placement position of the paper-plastic product deviates from the designated placement position in the two-dimensional direction; Preferably, the two-dimensional direction in the second embodiment of the present application refers to the direction on the plane parallel to the first tray 31, that is, whether the paper plastic product deviates from the designated placement position on the plane of the first tray 31. By the first sensor 41 moving around the calibration mechanism 40, the distance between the finished part of the paper plastic product and the edge can be measured from all around the paper plastic product. By comparing with the situation when the paper plastic product is placed at the designated placement position, it can be known whether the paper plastic product is offset. Furthermore, when measuring the paper plastic product in two-dimensional direction, it is necessary to measure the offset distance and offset angle of the paper plastic product relative to the specified placement position. Only when the offset angle and offset distance do not exceed the preset value can it be determined that the paper plastic product has not been offset.

[0043] Step S21: If yes, control the correction component to adjust the paper plastic product to a specified placement position in a two-dimensional direction, and then control the limit component to limit the position of the paper plastic product; Step S22, if not, controlling the limiting component to limit the position of the paper-plastic product; Specifically, in the embodiment of the present application, the correction component 42 adjusts the offset distance of the paper-plastic product relative to the designated placement position from four directions of the paper-plastic product; two correction units are arranged in each direction to facilitate the adjustment of the offset angle of the paper-plastic product relative to the designated placement position, and the eight correction units act on the paper-plastic product together to move the paper-plastic product to the designated placement position.

[0044] Step S3, controlling the first sensor to collect image information of the paper-plastic product, and judging whether there is an abnormal protrusion on the paper-plastic product according to the image information; Step S31, if yes, define the portion of the trimming area that falls within the range of the second trimming plate as the first area, and the portion outside the first trimming plate as the second area, and determine whether the abnormal protrusion falls within the first area; Step S32, if the abnormal protrusion falls into the first area, controlling the first sensor to move along the vertical height direction and measuring the abnormal protrusion to simulate a first appearance feature of the abnormal protrusion; Preferably, by measuring the distance between the edge of the abnormal protrusion and the first sensing element at each vertical height, a model of the abnormal protrusion can be constructed to obtain the first appearance feature of the abnormal protrusion; Step S33, establishing a historical database, the historical database including different abnormal features and first pressing forces bound to the abnormal features; matching the first appearance feature with the abnormal features in the historical database to obtain a first pressing force corresponding to the first appearance feature; Step S34, controlling the pressing plate in the trimming device to move to above the abnormal protrusion, and pressing the abnormal protrusion according to a first pressing force; Preferably, the pressure plate is arranged inside the trimming knife of the trimming device 11, so as to press the abnormal protrusions in the first area, and use different pressing forces and pressing speeds according to the size and shape of the abnormal protrusions, so as to maximize the protection of the integrity of the paper-plastic product itself.

[0045] Step S4, controlling the trimming device 11 to trim the paper-plastic product, and transferring the trimmed paper-plastic product to the bottom of the discharging device for unloading through the material transfer mechanism 30.

[0046] Furthermore, if the protrusion does not fall into the first area, it means that the finished product obtained after cutting the paper-plastic product does not have an abnormal protrusion, and step S4 is directly performed.

[0047] Through the cooperation between the first sensor 41 and the correction assembly 42 in the calibration mechanism 40, the finished products after cutting can be kept as consistent as possible, thereby reducing the defective rate of the finished products.

[0048] Preferably, before placing the compression molded product on the first tray 31, the compression molded product needs to be initially screened to prevent the abnormal protrusion from being too large and affecting the first sensor's judgment of the finished product part on the compression molded product. The screening can be done manually or mechanically.

[0049] Furthermore, step S21 specifically includes: Step S211, the first sensor has different first preset positions and second preset positions in the first direction of the calibration mechanism, and the first sensor is controlled to measure the offset of the actual placement position relative to the designated placement position in the direction of the first preset position and the second preset position to obtain a first offset distance and a second offset distance, and determine whether the first offset distance and the second offset distance are equal; Step S2111: If yes, control the correction component to adjust the paper-plastic product in the first direction according to the first offset distance; Step S2112, controlling the first sensor to move to the second direction of the calibration mechanism, measuring the offset of the actual placement position relative to the designated placement position, obtaining a third offset distance, and controlling the correction component to adjust the paper-plastic product in the second direction according to the third offset distance; Step S212: if not, control the correction component to adjust the paper-plastic product at the first preset position and the second preset position in the first direction, so that the first offset distance and the second offset distance are equal.

[0050] Specifically, by judging whether the first offset distance and the second offset distance in the same direction are equal, it can be known whether the paper-plastic product has an angular offset relative to the specified placement position; firstly, the correction unit is used to adjust the angle so that the first offset distance and the second offset distance are equal, and then the paper-plastic product is adjusted according to the offset distance to return the paper-plastic product to its original position. By optimizing the steps, the workload of the correction component is reduced.

[0051] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. An automatic trimming machine for paper and plastic product processing, characterized in that: The automatic trimming machine for paper and plastic product processing comprises: A frame (10), wherein a trimming device (11) is provided inside the frame (10), and a trimming area (12) is provided below the trimming device (11); a driving mechanism (20), the driving mechanism (20) being slidably disposed on the frame (10) and moving along the length direction of the frame (10), and the driving mechanism (20) passing through the trimming area (12); A material transfer mechanism (30), wherein the material transfer mechanism (30) is installed on the driving mechanism (20), and the material transfer mechanism (30) comprises: A first tray (31), the first tray (31) being arranged above the material transfer mechanism (30), and the first tray (31) being used for carrying the paper-plastic product; a second trimming plate (321), the second trimming plate (321) and the first tray (31) being arranged opposite to each other, and a trimming gap (33) for allowing a trimming knife group of the trimming device (11) to pass therethrough is provided between the second trimming plate (321) and the first tray (31); The second trimming plate (321) is movably arranged on the material transfer mechanism (30) so that a height difference is formed between the second trimming plate (321) and the first tray (31) to separate the trimmings of the paper-plastic product from the finished product.

2. The automatic trimming machine for paper and plastic products processing according to claim 1, characterized in that: The automatic trimming machine for processing paper and plastic products further comprises a discharging device, which is located on one side of the frame (10) in the length direction and is used for unloading the paper and plastic products on the material transfer mechanism (30); When the material transfer mechanism (30) moves to below the material discharging device, the second trimming plate (321) moves up and down relative to the first tray (31) to separate the edge material of the paper-plastic product from the finished product.

3. The automatic trimming machine for paper and plastic product processing according to claim 2, characterized in that: The material transfer mechanism (30) further comprises a first trimming plate (311), wherein the first trimming plate (311) is detachably mounted on the first tray (31); Wherein, the trimming gap (33) is formed between the second trimming plate (321) and the first trimming plate (311).

4. The automatic trimming machine for paper and plastic product processing according to claim 3, characterized in that: The material transfer mechanism (30) further comprises a second tray (32), wherein the second tray (32) is located below the first tray (31), and the second trimming plate (321) is detachably mounted on the second tray (32); Wherein, a lifting device (34) is provided under the second tray (32) to control the lifting movement of the second tray (32).

5. The automatic trimming machine for paper and plastic product processing according to claim 4, characterized in that: The automatic trimming machine for processing paper and plastic products further comprises a calibration mechanism (40), wherein the calibration mechanism (40) is arranged above the trimming area (12), and the calibration mechanism (40) comprises: A first sensor (41), the first sensor (41) being slidably disposed on a peripheral side of the calibration mechanism (40), the first sensor (41) being used to measure a positional offset of the paper-plastic product relative to the material transfer mechanism (30); A correction component (42), the correction component (42) being arranged below the calibration mechanism (40), and the correction component (42) correcting the placement position of the paper-plastic product according to the position offset; A limiting component (43), wherein the limiting component (43) is arranged below the calibration mechanism (40) to limit the position of the paper-plastic product.

6. The automatic trimming machine for paper and plastic products processing according to claim 5, characterized in that: A vacuum suction cup (15) is provided below the material transfer mechanism (30), and the material transfer mechanism (30) is provided with a first opening for the vacuum suction cup (15) to pass through, and the vacuum suction cup (15) is used to suck and limit the paper-plastic product; Wherein, the vacuum suction cup (15) cooperates with the limiting assembly (43) to limit the position of the paper-plastic product.

7. A trimming method, characterized in that: The trimming method is applied to the automatic trimming machine for processing paper and plastic products as claimed in claim 6, and the trimming method comprises: Placing the paper-plastic product on the first tray (31), and controlling the first tray (31) to move from the feeding area (13) to the trimming area (12); Controlling the first sensor (41) to measure whether the actual placement position of the paper-plastic product deviates from the designated placement position in a two-dimensional direction; If yes, controlling the correction component (42) to adjust the paper-plastic product to the designated placement position in two-dimensional directions; If not, controlling the limiting component (43) to limit the position of the paper-plastic product; Controlling the first sensor (41) to collect image information of the paper-plastic product, and judging whether the paper-plastic product has abnormal protrusions according to the image information; If yes, define the portion of the trimming area (12) that falls within the range of the second trimming plate (321) as the first area, and the portion outside the first trimming plate (311) as the second area, and determine whether the abnormal protrusion falls within the first area; If the abnormal protrusion falls into the first area, the first sensor (41) is controlled to move along a vertical height direction and measure the abnormal protrusion to simulate a first appearance feature of the abnormal protrusion; Establishing a historical database, wherein the historical database includes different abnormal features and a first pressing force bound to the abnormal features; Matching the first appearance feature with the abnormal feature to obtain the first pressing force associated with the first appearance feature; Controlling a pressing plate in the trimming device (11) to move above the abnormal protrusion, and pressing the abnormal protrusion according to the first pressing force; The trimming device (11) is controlled to trim the paper-plastic product, and the paper-plastic product after trimming is transferred to the bottom of the discharging device for unloading through the material transfer mechanism (30).

8. The trimming method according to claim 7, characterized in that: The controlling the correction component (42) to adjust the paper-plastic product to the designated placement position in two-dimensional directions also includes: The first sensor (41) has different first preset positions and second preset positions in a first direction of the calibration mechanism (40), controls the first sensor (41) to measure the offset of the actual placement position relative to the designated placement position in the direction of the first preset position and the second preset position, obtains a first offset distance and a second offset distance, and determines whether the first offset distance and the second offset distance are equal; If yes, controlling the correction component (42) to adjust the paper plastic product in the first direction according to the first offset distance; Controlling the first sensor (41) to move to the second direction of the calibration mechanism (40), measuring the offset of the actual placement position relative to the designated placement position to obtain a third offset distance, and controlling the correction component (42) to adjust the paper-plastic product in the second direction according to the third offset distance; If not, the correction component (42) is controlled to adjust the paper plastic product at the first preset position and the second preset position in the first direction so that the first offset distance and the second offset distance are equal.

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