An automatic edge cutting machine and edge cutting method for processing paper-plastic products

Abstract

The present application provides an automatic edge trimming machine and an edge trimming method for processing paper-plastic products. The automatic edge trimming machine for processing paper-plastic products includes: a cutting edge device is provided inside the frame, and a cutting edge area is provided below the cutting edge device; a driving mechanism is slidably arranged on the frame and moves along the length direction of the frame, and the driving mechanism passes through the cutting edge area; a material transfer mechanism is installed on the driving mechanism, and the material transfer mechanism includes: a first tray is arranged above the material transfer mechanism, and the first tray is used for carrying paper-plastic products; a cutting edge gap for the cutting edge group of the cutting edge device to pass through is formed between the second cutting edge plate and the first tray; wherein, the second cutting edge plate is arranged on the material transfer mechanism in a liftable manner, so as to form a height difference between the second cutting edge plate and the first tray to separate the edge material and the finished product of the paper-plastic product. The technical problem solved by the present application is that in the prior art, after the paper-plastic product is edge-trimmed, the finished product and the edge material are mixed together and are not easy to separate, and manual sorting is required.

Description

Technical Field

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

[0002] Some paper-plastic products are usually produced by using a molding device. The raw materials are stamped into shape in a molding machine, then the wet blank is hot-pressed and shaped by a shaping machine, and finally the paper-plastic product is trimmed by a trimming machine to obtain a finished product; the trimming process is completed by the trimming machine. Before trimming, the paper-plastic product includes multiple finished products of the paper-plastic product and the edge materials connected between the finished products. The trimming process is to disconnect the connection between the finished product and the edge material. After trimming, unloading is required, that is, the pulp molded product is taken out of the trimming machine and stacked on the receiving table.

[0003] However, there are at least the following problems in the related art: in the prior art, after trimming the paper-plastic product, the finished product and the edge material are mixed together and are not easy to separate, and manual sorting is required. Summary of the Invention

[0004] The technical problem solved by the present invention is that in the prior art, after trimming the paper-plastic product, the finished product and the edge material are mixed together and are not easy to separate, and manual sorting is required.

[0005] To solve the above problems, the present invention provides an automatic trimming machine for processing paper-plastic products. The automatic trimming machine for processing paper-plastic products includes: a frame, a trimming device is arranged inside the frame, and a trimming area is arranged below the trimming device; a driving mechanism, the driving mechanism is slidably arranged on the frame and moves along the length direction of the frame, and the driving mechanism passes through the trimming area; a material transfer mechanism, the material transfer mechanism is installed on the driving mechanism, and the material transfer mechanism includes: a first tray, the first tray is arranged above the material transfer mechanism, and the first tray is used for carrying the paper-plastic product; a second trimming plate, the second trimming plate is arranged opposite to the first tray, and a trimming gap for the trimming knife group of the trimming device to pass through is formed between the second trimming plate and the first tray; wherein, the second trimming plate is arranged on the material transfer mechanism in a liftable manner, so as to form a height difference between the second trimming plate and the first tray to separate the edge material and the finished product of the paper-plastic product.

[0006] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: by separately arranging the molds for cutting the paper-plastic product and setting the cutting gap between the second trimming plates, the structure is simplified, the mold module is easy to produce and manufacture, and the cost is reduced; on the other hand, through the height difference generated 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, so that it is easy to separate the two.

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

[0008] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: when there is a height difference between the edge materials and the finished products of the paper-plastic products, the discharging device is used to discharge and clean them respectively, and the finished products and the edge materials can be quickly separated.

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

[0010] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: both the second edge trimming plate and the first edge trimming plate are detachably arranged on the material transfer mechanism, which can make the edge trimming die more modular and can adapt 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 edge trimming plate is detachably installed on the second tray; wherein, a lifting device is arranged below the second tray to control the lifting movement of the second tray.

[0012] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: the lifting device and the second tray control the lifting movement of the second edge trimming plate, making the lifting movements of multiple first edge trimming plates more neat and more efficient during cutting.

[0013] In an example of the present invention, the automatic edge trimming machine for paper-plastic product processing further includes a calibration device, the calibration mechanism is arranged above the trimming area, and the calibration mechanism includes: a first sensing member, the first sensing member is slidably arranged on the periphery of the calibration mechanism, and the first sensing member is used for measuring the position offset of the paper-plastic product relative to the material transfer mechanism; a correction component, the correction component is arranged below the calibration mechanism, and the correction component corrects the placement position of the paper-plastic product according to the position offset; a limiting component, the limiting component is arranged below the calibration mechanism to limit the paper-plastic product.

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

[0015] In an example of the present invention, a vacuum suction cup is provided below the material transfer mechanism. The material transfer mechanism is provided with a first opening for the vacuum suction cup to pass through. The vacuum suction cup is used to tightly suck and limit the paper-plastic product. Among them, the vacuum suction cup cooperates with the limit component to limit the paper-plastic product.

[0016] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: By simultaneously limiting the paper-plastic product by the limit component and the vacuum suction cup, the paper-plastic product is not likely to shift in the vertical direction, reducing the defective rate of the paper-plastic product.

[0017] On the other hand, the present invention also provides a trimming method, including the automatic trimming machine for paper-plastic products in the above embodiment. The trimming method is applied to the above automatic trimming machine for paper-plastic products. The trimming method includes: placing the paper-plastic product on the first tray, controlling the first tray to move from the feeding area to the trimming area; controlling the first sensing member to measure whether the actual placement position of the paper-plastic product deviates from the specified placement position in the two-dimensional direction; if so, controlling the calibration component to adjust the paper-plastic product to the specified placement position in the two-dimensional direction; if not, controlling the limit component to limit the position of the paper-plastic product; controlling the first sensing member to collect the 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; if so, defining the part of the trimming area falling within the range of the second trimming plate as the first area, and the part located outside the first trimming plate as the second area, and judging whether the abnormal protrusion falls within the first area; if the abnormal protrusion falls within the first area, controlling the first sensing member to move in the vertical height direction and measure the abnormal protrusion to simulate the first external shape feature of the abnormal protrusion; establishing a historical database, the historical database includes different abnormal features and the first pressing force bound to the abnormal features; matching the first external shape feature with the abnormal features to obtain the first pressing force associated with the first external shape feature; controlling the pressing member in the trimming device to move above the abnormal protrusion and press the abnormal protrusion according to the first pressing force; controlling the trimming device to trim the paper-plastic product, and transferring the trimmed paper-plastic product to the lower part of the discharging device for discharging through the material transfer mechanism.

[0018] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: Through the cooperation between the first sensing member and the calibration component in the calibration mechanism, the cut finished products can be made as consistent as possible, thereby reducing the defective rate of the finished products. By further providing a pressing member in the trimming device to press the abnormal protrusions on the paper-plastic product, the paper-plastic product can be made as flat as possible, further improving the quality of the finished products.

[0019] In an example of the present invention, the control and correction component for adjusting the paper-plastic product to the specified placement position in two-dimensional directions further includes: the first sensing member has different first preset positions and second preset positions in the first direction of the calibration mechanism. Control the first sensing member to measure the offset of the actual placement position relative to the specified placement position in the directions of the first preset position and the second preset position, obtain a first offset distance and a second offset distance, and determine whether the first offset distance and the second offset distance are equal; if so, control the correction component to adjust the paper-plastic product in the first direction according to the first offset distance; control the first sensing member to move to the second direction of the calibration mechanism, measure the offset of the actual placement position relative to the specified placement position, obtain a third offset distance, and control the correction component to adjust the paper-plastic product in the second direction according to the third offset distance; 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 to make the first offset distance and the second offset distance equal.

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

[0021] After adopting the technical solution of the present invention, the following technical effects can be achieved:

[0022] (1) By separately arranging the mold for cutting the paper-plastic product and setting the cutting gap between the second cutting edge plates, not only the structure is simplified, making the mold module easy to manufacture and reducing costs; on the other hand, due to the height difference generated between the second cutting edge plate and the first tray, the edge material and the finished product of the paper-plastic product can be at different heights, making it easy to separate the two.

[0023] (2) Through the cooperation between the first sensing member and the correction component in the calibration mechanism, the cut finished products can be made as consistent as possible, thereby reducing the defective rate of the finished products. Then, by using the pressing member arranged in the edge cutting device to press the abnormal protrusions on the paper-plastic product, the pressed plastic product can be made as flat as possible, further improving the quality of the finished products.

[0024] (3) By adjusting at different first preset positions and second preset positions, the angular offset of the paper-plastic product can be adjusted, and by adjusting the offset amounts in two different directions, the paper-plastic product can be returned to its original position. Description of the Drawings

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings;

[0026] Figure 1 It is a schematic structural diagram of an automatic edge trimming machine for paper-plastic product processing provided in Embodiment 1 of the present invention;

[0027] Figure 2 For Figure 1 It is a partial enlarged structural diagram of part A in

[0028] Figure 3 For Figure 1 It is a partial structural diagram of the automatic edge trimming machine for paper-plastic product processing in

[0029] Figure 4 For Figure 1 It is a partial structural diagram of the automatic edge trimming machine for paper-plastic product processing in

[0030] Figure 5 It is a schematic flow diagram of an edge trimming method provided in Embodiment 2 of the present invention.

[0031] Explanation of reference numerals:

[0032] 1. Automatic edge trimming machine for paper-plastic product processing; 10. Frame; 11. Edge trimming device; 12. Edge trimming area; 13. Feeding area; 14. Discharging area; 15. Vacuum sucker; 20. Driving mechanism; 21. Guide rail; 30. Material transfer mechanism; 31. First tray; 311. First edge trimming plate; 32. Second tray; 321. Second edge trimming plate; 33. Edge trimming gap; 34. Lifting device; 40. Calibration mechanism; 41. First sensing element; 42. Correction component; 43. Limiting component; 44. Slide rail. Detailed implementation manners

[0033] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will give a detailed description of the specific embodiments of the present invention with reference to the accompanying drawings.

[0034] Embodiment 1:

[0035] Refer to Figures 1 to 4, the present invention provides an automatic trimming machine 1 for processing paper-plastic products. The automatic trimming machine 1 for processing paper-plastic products includes: a frame 10, a driving mechanism 20, and a material transfer mechanism 30. A control console is provided at 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 approaches the trimming area 12 below it; the driving mechanism 20 is slidably arranged on the frame 10. 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 transfer 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.

[0036] Among them, 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 loading platform, and the first tray 31 is used for loading paper-plastic products. In the embodiment of the present application, the paper-plastic product is a paper-plastic box, and the outer shape is in the style of an ordinary lunch box. The paper-plastic product is placed upside down on the first tray 31; a plurality of second trimming plates 321 are provided. The second trimming plates 321 and the first tray 31 are arranged opposite to each other. The first tray 31 is provided with a plurality of openings. The second trimming plates 321 are arranged at the openings of the first tray 31, and a trimming gap 33 for the trimming cutter group of the trimming device 11 to pass through is provided between the second trimming plates 321 and the first tray 31; among them, the second trimming plates 321 are liftably arranged on the material transfer mechanism 30 so as to form a height difference between the second trimming plates 321 and the first tray 31 to separate the side materials and finished products of the paper-plastic products. When the trimming device 11 completes the trimming action, the material transfer mechanism 30 moves to the discharging area 14. At this time, the second trimming plates 321 perform a lifting movement to separate the finished products and side materials of the paper-plastic products.

[0037] Preferably, the second trimming plates 321 are detachably arranged on the material transfer mechanism 30, and the trimming gap 33 between the second trimming plates 321 and the first tray 31 can also be changed according to needs along with the second trimming plates 321. Such a setting can make the automatic trimming machine 1 for processing paper-plastic products more modular and adapt to industrial requirements.

[0038] By separately arranging the second trimming plates and the first tray and arranging 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, it is easier to manufacture and the manufacturing cost is reduced; on the other hand, through the height difference generated between the second trimming plates 321 and the first tray 31, the side materials and finished products of the paper-plastic products can be placed at different heights, so that it is easy to separate the two.

[0039] Furthermore, the automatic edge trimming machine 1 for paper-plastic product processing further includes a discharging device, and the discharging area 14 is arranged below the discharging device. The discharging device is arranged on one side in the length direction of the frame 10 and is used for discharging the paper-plastic products on the material transferring mechanism 30. When the material transferring mechanism 30 moves to the discharging area 14 below the discharging device, the second edge trimming plate 321 moves up and down relative to the first tray 31 to separate the edge materials and the finished products of the paper-plastic products. When there is a height difference between the edge materials and the finished products of the paper-plastic products, the discharging device is used to discharge and clean them respectively at this time, and the finished products and the edge materials can be quickly separated.

[0040] Preferably, the second edge trimming plate 321 can move upward. When the bottom of the finished product is higher than the top of the edge materials, the finished product can be discharged. Then the second edge trimming plate 321 is lowered to the same horizontal height as the first tray 31. When the second edge trimming plate 321 and the first tray 31 are at the same height, the edge materials can be discharged.

[0041] On the other hand, the second edge trimming plate 321 can move downward. When the bottom of the edge materials is higher than the top of the finished product, the edge materials can be discharged. Then the second edge trimming plate 321 is raised to the same horizontal height as the first tray 31, and the finished product can be discharged. The specific behavior of the second edge trimming plate 321 depends on the requirements of the production situation.

[0042] Further, the discharging device can be a cleaning device arranged above the frame 10 to clean the finished products or the edge materials into the goods box. The discharging device can also be a blowing device arranged beside the frame 10 to blow the finished products or the edge materials into the goods box by the wind force of the blowing device.

[0043] Preferably, the material transferring mechanism 30 further includes a first edge trimming plate 311. A plurality of first edge trimming plates 311 are arranged at the opening of the first tray 31. The first edge trimming plates 311 are detachably installed on the first tray 31, and the first edge trimming plates 311 also have openings. The second edge trimming plate 321 is located in the opening of the first edge trimming plate 311. A trimming gap 33 is formed between the second edge trimming plate 321 and the first edge trimming plate 311. The outer edge of the second edge trimming plate 321 and the inner edge of the first edge trimming plate 311 cooperate with each other to form the trimming gap 33.

[0044] Both the second edge trimming plate 321 and the first edge trimming plate 311 are detachably arranged on the material transferring mechanism 30, which can make the edge trimming die more modular to adapt to a variety of different paper-plastic product models.

[0045] Preferably, when the automatic edge trimming machine 1 for paper-plastic product processing works, the first tray 31 and the first edge trimming plate 311 are in a relatively static state.

[0046] Specifically, the material transfer mechanism 30 further includes a second tray 32. The second tray 32 is located below the first tray 31. The second trimming plate 321 is detachably mounted on the second tray 32, and the second trimming plate 321 is relatively stationary with respect to the second tray 32. Among them, a lifting device 34 is provided below the second tray 32. The upper end of the lifting device 34 is connected to the second tray 32 to control the lifting movement of the second tray 32, thereby creating a height difference between the second trimming plate 321 and the first trimming plate 311.

[0047] The lifting device 34 and the second tray 32 control the lifting movement of the second trimming plate 321, making the lifting movements of multiple first trimming plates 311 more orderly and more efficient during cutting.

[0048] In addition, the automatic trimming machine 1 for processing paper-plastic products further includes a calibration mechanism 40. The calibration mechanism 40 is provided below the control console and above the trimming area 12. The body of the calibration mechanism 40 is a calibration platform. The calibration mechanism 40 includes a first sensing member 41, a correction assembly 42, and a limiting assembly 43. The first sensing member 41 is slidably disposed on the periphery of the calibration mechanism 40. A slide rail 44 is provided on the periphery of the calibration platform. A slider is provided on the first sensing member 41, and the slider cooperates with the slide rail 44 to enable the first sensing member 41 to move along the slide rail 44 on the periphery of the calibration platform. The first sensing member 41 is used to measure the position offset of the paper-plastic product relative to the material transfer mechanism 30. The correction assembly 42 is provided below the calibration mechanism 40. The correction assembly 42 corrects the placement position of the paper-plastic product according to the position offset. The correction assembly 42 has multiple correction units, enabling the correction assembly 42 to correct the paper-plastic product from multiple directions. The limiting assembly 43 is provided below the calibration mechanism 40 to limit the paper-plastic product. The limiting assembly 43 also has multiple limiting units. When the correction assembly 42 completes the position correction of the paper-plastic product, the multiple limiting units press down to limit the position of the paper-plastic product. Through the calibration mechanism 40, it is possible to promptly correct the deviation of the position of the paper-plastic product, thereby reducing the defective rate of the finished product and improving the overall product quality.

[0049] Specifically, the calibration platform has four planes on which the first sensing member 41 can move, and each plane is in a different direction. The first sensing member 41 measures the position offset of the paper-plastic product relative to the material transfer mechanism 30 in the direction of this plane from the four planes. At the same time, the first sensing member 41 measures twice at different positions on each plane to measure whether there is an angular offset of the paper-plastic product in the direction of each plane. Correspondingly, on each plane, at least two correction units are provided to correct the angle and offset distance of the paper-plastic product simultaneously.

[0050] Preferably, a vacuum suction cup 15 is provided below the material transfer mechanism 30. The material transfer mechanism 30 is provided with a first opening for the vacuum suction cup 15 to pass through. The first opening is arranged inside the second trimming plate 321. The vacuum suction cup 15 is used to tightly suck and limit the paper-plastic product. Among them, the vacuum suction cup 15 cooperates with the limiting component 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. At this time, the vacuum suction cup 15 is used to tightly suck it inside the paper-plastic product, so that the paper-plastic product is not likely to shift in the vertical direction, thereby reducing the defective rate of the finished product.

[0051] Further, 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 to make it close to the top inside the finished product. When the vacuum suction cup tightly sucks the paper-plastic product, then adjust the vacuum suction cup 15 to the normal preset position of the paper-plastic product.

[0052] Embodiment 2:

[0053] See Figure 5 , the present invention also provides a trimming method. Combining Figures 1 to 4 , the trimming method is applied to the automatic trimming machine 1 for processing paper-plastic products in the above-mentioned Embodiment 1. The trimming method includes:

[0054] Step S1, place the paper-plastic product on the first tray, and control the first tray to move from the feeding area to the trimming area through the console;

[0055] Step S2, control the first sensing member to measure whether the actual placement position of the paper-plastic product deviates from the specified placement position in the two-dimensional direction;

[0056] 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 specified placement position on the plane of the first tray 31. By moving the first sensing member 41 around the calibration mechanism 40, the distance from the finished part of the paper-plastic product to 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 specified placement position, it can be known whether the paper-plastic product is offset;

[0057] Further, when measuring the paper-plastic product in the 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 both the offset angle and the offset distance do not exceed the preset value can it be determined that the paper-plastic product is not offset.

[0058] Step S21, if so, control the correction component to adjust the paper-plastic product to the specified placement position in the two-dimensional direction, and then control the limiting component to limit the position of the paper-plastic product;

[0059] Step S22, if not, then control the limit component to limit the position of the paper-plastic product;

[0060] Specifically, in the embodiment of the present application, the correction component 42 adjusts the offset distance of the paper-plastic product relative to the specified placement position from four directions of the paper-plastic product; two correction units are arranged in each direction to facilitate adjusting the offset angle of the paper-plastic product relative to the specified placement position. The eight correction units act on the paper-plastic product together to move the paper-plastic product to the specified placement position.

[0061] Step S3, control the first sensing member to collect the image information of the paper-plastic product, and judge whether there is an abnormal protrusion on the paper-plastic product according to the image information;

[0062] Step S31, if so, define the part where the trimming area falls within the range of the second trimming plate as the first area, and the part located outside the first trimming plate as the second area, and judge whether the abnormal protrusion falls within the first area;

[0063] Step S32, if the abnormal protrusion falls within the first area, control the first sensing member to move in the vertical height direction and measure the abnormal protrusion to simulate the first external shape feature of the abnormal protrusion;

[0064] Preferably, by measuring the distance between the edge of the abnormal protrusion at each vertical height and the first sensing member, the model of the abnormal protrusion can be constructed to obtain the first external shape feature of the abnormal protrusion;

[0065] Step S33, establish a historical database, which includes different abnormal features and the first pressing force bound to the abnormal features; match the first external shape feature with the abnormal features in the historical database to obtain the first pressing force corresponding to the first external shape feature;

[0066] Step S34, control the pressing plate member in the trimming device to move above the abnormal protrusion, and press the abnormal protrusion according to the first pressing force;

[0067] Preferably, the pressing plate member is arranged inside the trimming knife of the trimming device 11, so that the abnormal protrusion in the first area can be pressed, and according to the size and shape of the abnormal protrusion, it can be processed with different pressing forces and pressing speeds, which can maximize the protection of the integrity of the paper-plastic product itself.

[0068] Step S4, control the trimming device 11 to trim the paper-plastic product, and transfer the trimmed paper-plastic product to the lower part of the discharging device through the material transfer mechanism 30 for discharging.

[0069] Further, if the protrusion does not fall within the first area, it means that the finished product obtained by cutting the paper-plastic product does not have an abnormal protrusion, and directly proceed to step S4.

[0070] Through the cooperation between the first sensing member 41 and the calibration assembly 42 in the calibration mechanism 40, it is possible to make the finished products after cutting as consistent as possible, thereby reducing the defective rate of the finished products.

[0071] Preferably, before placing the compression molded product on the first tray 31, it is necessary to conduct a preliminary screening of the compression molded product to prevent the abnormal protrusion from being too large and affecting the first sensing member's judgment of the finished product part on the compression molded product. This screening can be done manually or mechanically.

[0072] Furthermore, step S21 specifically includes:

[0073] Step S211, the first sensing member has different first preset positions and second preset positions in the first direction of the calibration mechanism. Control the first sensing member to measure the offset of the actual placement position relative to the specified placement position in the directions of the first preset position and the second preset position, obtain the first offset distance and the second offset distance, and determine whether the first offset distance and the second offset distance are equal;

[0074] Step S2111, if so, control the calibration assembly to adjust the paper-plastic product in the first direction according to the first offset distance;

[0075] Step S2112, control the first sensing member to move to the second direction of the calibration mechanism, measure the offset of the actual placement position relative to the specified placement position, obtain the third offset distance, and control the calibration assembly to adjust the paper-plastic product in the second direction according to the third offset distance;

[0076] Step S212, if not, control the calibration assembly to adjust the paper-plastic product at the first preset position and the second preset position in the first direction to make the first offset distance and the second offset distance equal.

[0077] Specifically, by determining whether the first offset distance and the second offset distance in the same direction are equal, it is possible to know whether the paper-plastic product has an angular offset relative to the specified placement position; first, perform an angular adjustment through the calibration unit to make the first offset distance and the second offset distance equal, and then adjust the paper-plastic product according to the offset distance later, so that the paper-plastic product can return to its original position. Through the optimization of the steps, the workload of the calibration assembly is reduced.

[0078] 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 should 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; 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); Wherein, 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; 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); 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.

2. The automatic trimming machine for paper and plastic products processing according to claim 1, 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).

3. The automatic trimming machine for paper and plastic product processing according to claim 2, 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.

4. 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 3, 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).

5. The trimming method according to claim 4, 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.

Images