CN116653193A

CN116653193A - Tray forming device and method

Info

Publication number: CN116653193A
Application number: CN202310624878.1A
Authority: CN
Inventors: 谢果
Original assignee: Mianyang Zhongyan Grinding Tool Co ltd
Current assignee: Mianyang Zhongyan Grinding Tool Co ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-08-29

Abstract

The application discloses a tray forming device and a tray forming method, comprising a rotary workbench, a plurality of forming dies, a frame, a hot pressing mechanism, an industrial camera and a filling device; the plurality of forming dies are arranged at the top of the rotary workbench, and are distributed in an annular array around the center of the rotary workbench; the rotary workbench is positioned in the frame; the hot pressing mechanism is arranged at the top of the frame and is used for extending into the corresponding forming die to form the glass fiber tray in a hot pressing mode; the industrial camera is arranged at the top of the frame and is used for photographing the glass fiber tray molded in the molding die so as to identify the defect condition of the current glass fiber tray; the filling device is arranged at the top of the frame and is used for filling glass fiber trays needing secondary forming in a forming die under the hot pressing mechanism.

Description

Tray forming device and method

Technical Field

The application relates to the technical field of plate forming, in particular to a tray forming device and method.

Background

Glass fiber (glass fiber for short) is an inorganic nonmetallic material with excellent performance, and has various kinds, and the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength. In the manufacturing production of the sand page disc, glass fiber materials are required to be used as a matrix, a large piece of glass fiber materials are cut into round pieces through a cutting device, and the residual glass fiber rim charge after cutting is treated as waste.

The glass fiber rim charge can be recycled and processed to be manufactured into a glass fiber tray, the tray can be used for a workshop transportation bearing plate, so that the purpose of secondary utilization is achieved, the existing glass fiber tray is difficult to meet the use requirement due to the fact that all glass fiber rim charges are used for hot press molding, gaps of glass fiber rim charges are more, when hot press is conducted in a die cavity, glass fiber rim charges are filled weak at the edge of the die cavity, the edge of the finally molded glass fiber tray possibly has a defect to a certain extent, if the defect is not large, the glass fiber tray can be used as a finished product, if the defect is large, the filling material is needed to be reworked at the edge of the glass fiber tray for secondary hot press molding, and therefore, the molded glass fiber tray is guaranteed to meet the use requirement, if the filling material is added for each filling material, the raw material is insufficient, so that whether secondary molding is needed to be judged according to the defect condition after the glass fiber tray molding is needed, and at present, the defect condition of the glass fiber tray after the first molding is judged mainly manually, different people judge the defect conditions, and the human error is large, and the recognition accuracy is low.

Disclosure of Invention

The application mainly aims to provide a tray forming device and method, and aims to solve the technical problems that the defect condition of a glass fiber tray formed for the first time is required to be identified through manual judgment during the preparation of the existing glass fiber tray, and the identification accuracy is low.

In order to achieve the above object, the present application provides a tray molding device, comprising a rotary table, a plurality of molding dies, a frame, a hot pressing mechanism, an industrial camera and a filling device; the plurality of forming dies are arranged at the top of the rotary workbench, and are distributed in an annular array around the center of the rotary workbench; the rotary workbench is positioned in the frame; the hot pressing mechanism is arranged at the top of the frame and is used for extending into the corresponding forming die to form the glass fiber tray in a hot pressing mode; the industrial camera is arranged at the top of the frame and is used for photographing the glass fiber tray molded in the molding die so as to identify the defect condition of the current glass fiber tray; the packing device is arranged at the top of the frame and is used for packing glass fiber trays which are required to be secondarily molded in the molding die under the hot pressing mechanism.

Optionally, the moulded die is all opened from top to bottom, and moulded die bottom is provided with spacing step, is provided with the fly leaf of laminating moulded die inner wall on the spacing step, and the fly leaf encloses into with hot pressing mechanism complex die cavity with moulded die inner wall, and the fly leaf bottom is connected with the top jar that sets up on swivel work head, and top jar is used for ejecting the moulded die with the fly leaf, and moulded die inner wall is provided with first hot plate, and first hot plate electric connection has the first temperature controller that is located the moulded die outer wall.

Optionally, the hot pressing mechanism includes the flexible jar that sets up at the frame internal top, and flexible jar bottom is connected with the clamp plate, and the clamp plate bottom is connected with the second hot plate, and second hot plate electric connection has the second temperature controller, and the second temperature controller sets up in the clamp plate top.

Optionally, the packing device is including setting up in the material case at frame top, is equipped with the filler in the material case, and material case bottom is provided with a plurality of solenoid valves, and the solenoid valve all is connected with the discharging pipe, and the discharging pipe bottom is the arc section, and the arc section of a plurality of discharging pipes is close to the moulded die edge respectively to fill the filler around the fine tray of glass.

Optionally, a material pump is arranged at the top of the material box, the material pump is respectively connected with a first material pipe and a second material pipe, the first material pipe stretches into the material box, and the second material pipe is connected with a material mixing device; wherein, compounding device includes the jar body, and the second material union coupling is in jar body bottom, and jar body top is provided with the loading hopper, and jar body top is provided with first motor, and first motor connection has the axis of rotation that is located jar internal, is provided with spiral stirring piece in the axis of rotation, and the axis of rotation bottom is provided with a plurality of scraping the material piece, scrapes the material piece and is close to jar internal lateral wall and jar internal bottom simultaneously.

Optionally, the automatic feeding device further comprises a base, wherein a support column is movably arranged on the base, the rotary workbench is connected to the top of the support column, and a rotary driving mechanism for driving the support column to rotate is arranged on the base; the rotary driving mechanism comprises a second motor arranged on the base, the second motor is connected with a driving gear, the driving gear is connected with a driven toothed ring in a meshed mode, and the driven toothed ring is fixedly sleeved on the supporting column.

Optionally, a plurality of connecting rods are connected to the bottom of the industrial camera, and the industrial camera is connected with the annular light source through the plurality of connecting rods.

Optionally, the system further comprises an industrial personal computer, and the industrial camera, the top cylinder and the electromagnetic valve are electrically connected with the industrial personal computer.

A tray forming method based on the tray forming device comprises the following steps:

filling glass fiber rim charge into a corresponding forming die at a first station; the first station is a station which is positioned in the area between the hot pressing mechanism and the industrial camera and is used for filling glass fiber rim charge on the rotary workbench;

rotating the rotary workbench to rotate the forming die filled with glass fiber rim charge to a second station; the second station is a station which is positioned right below the hot pressing mechanism on the rotary workbench;

the hot pressing mechanism moves downwards to extend into a corresponding forming die so as to form a glass fiber tray by hot pressing the glass fiber rim charge, and meanwhile, the glass fiber rim charge is filled into an empty forming die at a first station;

rotating the rotary workbench to enable the forming die with the glass fiber tray to rotate to a third station; the third station is a station which is positioned right below the industrial camera on the rotary workbench;

photographing the forming die currently positioned at the third station through an industrial camera to identify and acquire an image of the glass fiber tray;

processing the image of the glass fiber tray to identify defect information of the edge of the glass fiber tray in the image, and judging whether the current glass fiber tray belongs to a qualified product or not according to the defect information;

if the current glass fiber tray belongs to a qualified product, demolding the glass fiber tray, if the current glass fiber tray does not belong to the qualified product, continuing to rotate the unqualified glass fiber tray to a second station, filling the periphery of the unqualified glass fiber tray through a filling device, and then enabling the hot pressing mechanism to move downwards to perform secondary molding on the unqualified glass fiber tray.

Optionally, the processing the image of the glass fiber tray to identify defect information of the glass fiber tray edge in the image, and according to the defect information, to determine whether the current glass fiber tray belongs to a qualified product, including:

gray processing and binarization processing are carried out on the image of the glass fiber tray so as to obtain a black-and-white image;

uniformly dividing the black-and-white image into four sub-images, and respectively constructing four rectangular frames with equal areas according to the outline in the four sub-images;

respectively acquiring effective areas S of outline contours in four sub-images in rectangular frames ₁ 、S ₂ 、S ₃ 、S ₄ ；

Acquiring a sum area S ', and comparing the sum area S' with a threshold area S _m Comparing if the sum area S' < the threshold area S _m Judging that the current glass fiber tray does not belong to the qualified product, and if the sum area S' is not less than the threshold area S _m Then enter the next step; wherein the threshold area S _m Is a preset glass fiber tray single-sided area qualification value, and the sum area S' =S ₁ +S ₂ +S ₃ +S ₄ ；

Will have an effective area S ₁ 、S ₂ 、S ₃ 、S ₄ Respectively with threshold area S _n Comparing if the effective area S ₁ 、S ₂ 、S ₃ 、S ₄ Any effective area is smaller than the threshold area S _n Judging that the current glass fiber tray does not belong to qualified products, and if the effective area S ₁ 、S ₂ 、S ₃ 、S ₄ Are all greater than the threshold area S _n Judging that the current glass fiber tray belongs to a qualified product; wherein the threshold area S _n Is the area of a preset rectangular frame.

The beneficial effects that the application can realize are as follows:

according to the application, after the glass fiber tray is manufactured through the cooperation of the hot pressing mechanism and the forming die, the forming die of the manufactured glass fiber tray is integrally rotated to the position right below the industrial camera under the rotation action of the rotary workbench, the industrial camera can shoot the glass fiber tray molded in the forming die to identify the defect condition of the current glass fiber tray, if no defect or the defect meets the process requirement, the current glass fiber tray can be demolded and taken out, if the defect is larger and does not meet the process requirement, demolding is not needed, the unqualified glass fiber tray is continuously rotated to the position right below the hot pressing mechanism under the rotation action of the rotary workbench for a second time, the edge of the glass fiber tray in the forming die right below the hot pressing mechanism is filled through the filling device, and then the glass fiber tray with higher integrity is secondarily molded through the hot pressing mechanism.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of a tray forming device according to an embodiment of the present application;

FIG. 2 is a schematic view showing the internal structure of a molding die according to an embodiment of the present application;

FIG. 3 is a schematic view showing an arrangement relationship (top view) of a molding die on a rotary table in an embodiment of the present application;

FIG. 4 is a schematic view of a glass fiber tray formed by secondary molding according to an embodiment of the present application;

FIG. 5 is a schematic view of a black and white image of a corresponding glass tray obtained in an embodiment of the present application;

fig. 6 is a schematic diagram of a black-and-white image divided into four sub-images according to an embodiment of the present application.

Reference numerals:

110-rotating workbench, 120-forming die, 121-limiting step, 130-frame, 140-hot press mechanism, 141-telescopic cylinder, 142-pressing plate, 143-second heating plate, 144-second temperature controller, 150-industrial camera, 160-packing device, 161-material box, 162-electromagnetic valve, 163-discharging pipe, 170-movable plate, 180-top cylinder, 190-first heating plate, 210-first temperature controller, 220-material pump, 230-first material pipe, 240-second material pipe, 250-mixing device, 251-tank, 252-hopper, 253-first motor, 254-rotating shaft, 255-spiral stirring piece, 256-scraping sheet, 260-supporting column, 270-rotating driving mechanism, 272-second motor, 272-driving gear, 273-driven toothed ring, 280-connecting rod, 290-annular light source, 310-industrial computer, 320-glass fiber tray, 321-glass fiber board and 322-packing layer.

The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are merely used to explain the relative positional relationship between the components, the movement condition, etc. in a specific posture, and if the specific posture is changed, the directional indicator is correspondingly changed.

In the present application, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.

Example 1

Referring to fig. 1 to 4, the present embodiment provides a tray molding apparatus including a rotary table 110, a plurality of molding dies 120, a frame 130, a hot press mechanism 140, an industrial camera 150, and a filler device 160; the forming dies 120 are disposed on top of the rotary table 110, and the forming dies 120 are distributed in a ring array around the center of the rotary table 110; the rotary table 110 is located within the frame 130; the hot pressing mechanism 140 is disposed at the top of the frame 130, and the hot pressing mechanism 140 is configured to extend into the corresponding forming die 120 to form the glass fiber tray 320 by hot pressing; the industrial camera 150 is disposed at the top of the frame 130, and the industrial camera 150 is configured to take a picture of the glass fiber tray 320 formed in the forming mold 120, so as to identify a defect condition of the current glass fiber tray 320; the packing device 160 is disposed at the top of the frame 130, and the packing device 160 is used for packing the glass fiber tray 320 that needs to be secondarily molded in the molding die 120 directly below the hot pressing mechanism 140.

In this embodiment, after the glass fiber tray 320 is manufactured by matching the hot pressing mechanism 140 and the forming die 120, the forming die 120 for manufacturing the glass fiber tray 320 is integrally rotated under the rotation action of the rotary workbench 110 to the position right below the industrial camera 150, the industrial camera 150 can photograph the glass fiber tray 320 formed in the forming die 120 to obtain an image, after the image is processed, the defect condition of the current glass fiber tray 320 can be identified, if no defect or defect meets the process requirement, namely, a qualified product, the current glass fiber tray 320 can be demolded and taken out, if the defect is larger and does not meet the process requirement, namely, a failed product, the demolding is not needed, and the unqualified glass fiber tray 320 is continuously rotated under the rotation action of the rotary workbench 110 to the position right below the hot pressing mechanism 140, the edge of the glass fiber tray 320 in the forming die 120 under the hot pressing mechanism 140 is filled through the filling device 160, and then the glass fiber tray 320 after filling is secondarily formed through the hot pressing mechanism 140, so that the glass fiber tray 320 with higher integrity is finally manufactured.

It should be noted that, the filler device 160 is filled with filler, and the filler can be prepared by mixing waste materials such as sawdust or straw powder and the like with adhesive such as urea formaldehyde resin, thereby promoting the secondary use of the waste materials such as sawdust or straw powder and the like, and being more energy-saving and environment-friendly; as shown in FIG. 4, the glass fiber tray 320 is made of glass fiber plate 321, and a filling layer 322 is connected to the edge of the glass fiber plate 321, and the filling layer 322 is made of sawdust or straw powder mixed with urea resin and other adhesives; taking the setting of the 4-component mold 120 as an example, the rotation of the rotary table 110 can switch the stations of the plurality of molding dies 120, so that the operations of filling glass fiber edge materials, hot press molding of the glass fiber tray 320 and defect detection of the glass fiber tray 320 can be simultaneously performed, thereby further having the effect of improving the production efficiency.

As an alternative implementation manner, the forming die 120 is opened up and down, a limiting step 121 is arranged at the bottom of the forming die 120, a movable plate 170 attached to the inner wall of the forming die 120 is arranged on the limiting step 121, a cavity matched with the hot pressing mechanism 140 is formed by enclosing the movable plate 170 and the inner wall of the forming die 120, a top cylinder 180 arranged on the rotary workbench 110 is connected to the bottom of the movable plate 170, the top cylinder 180 is used for ejecting the movable plate 170 out of the forming die 120, a first heating plate 190 is arranged on the inner wall of the forming die 120, and a first temperature controller 210 positioned on the outer wall of the forming die 120 is electrically connected to the first heating plate 190.

In this embodiment, after the hot press forming of the glass fiber tray 320 is completed and the glass fiber tray is detected to be qualified by the industrial camera 150, the movable plate 170 is driven to move upwards by the top cylinder 180, so that the glass fiber tray 320 on the movable plate 170 is ejected out of the forming die 120, a worker can quickly take away the glass fiber tray 320, the top cylinder 180 drives the movable plate 170 to move downwards to the limiting step 121 for resetting, the automatic demolding is achieved, the operation is convenient and quick, and a demolding agent can be properly added during demolding, so that the glass fiber tray 320 can be demolded more smoothly; the first heating plate 190 can heat the glass fiber rim charge, and simultaneously combines the heating function of the hot pressing mechanism 140, can sufficiently and uniformly heat the glass fiber rim charge to enable the glass fiber rim charge to be melted, is convenient for subsequent compression molding, has high compactness after molding, can control the heating temperature of the first heating plate 190 through the first temperature controller 210, and is convenient for temperature control according to process requirements.

As an alternative embodiment, the hot pressing mechanism 140 includes a telescopic cylinder 141 disposed at the top in the frame 130, a pressing plate 142 is connected to the bottom of the telescopic cylinder 141, a second heating plate 143 is connected to the bottom of the pressing plate 142, and the second heating plate 143 is electrically connected to a second temperature controller 144, where the second temperature controller 144 is disposed at the top of the pressing plate 142.

In this embodiment, when hot press molding is required, the telescopic cylinder 141 drives the pressing plate 142 and the second heating plate 143 to move downward and extend into the forming die 120, the second heating plate 143 with a certain temperature extrudes the upper surface of the glass fiber edge material in the forming die 120, and the upper surface is kept for a certain time, so that automatic hot press molding is realized, and the second temperature controller 144 can adjust the temperature of the second heating plate 143, so that different process requirements are met.

As an alternative embodiment, the filling device 160 includes a material box 161 disposed at the top of the frame 130, a filling material is filled in the material box 161, a plurality of electromagnetic valves 162 are disposed at the bottom of the material box 161, the electromagnetic valves 162 are connected with discharging pipes 163, the bottoms of the discharging pipes 163 are arc-shaped sections, and the arc-shaped sections of the plurality of discharging pipes 163 are respectively close to the edges of the forming die 120 so as to fill the filling material around the glass fiber tray 320.

In this embodiment, when the glass fiber tray 320 needs to be filled with the filler, the electromagnetic valve 162 is opened, the filler in the material box 161 can be left along the vertical discharging pipe 163, and finally, when the filler flows out from the arc section of the discharging pipe 163, the filler can smoothly flow to the inner edge position of the forming die 120 under the action of inertia, and the arc section of the discharging pipe 163 also cannot collide with the hot pressing mechanism 140, and smooth discharging is ensured.

It should be noted that, here, a discharge pump may be added between the bottom of the material box 161 and the electromagnetic valve 162, so as to ensure rapid discharge of the filler.

As an alternative embodiment, a material pump 220 is arranged at the top of the material box 161, the material pump 220 is respectively connected with a first material pipe 230 and a second material pipe 240, the first material pipe 230 extends into the material box 161, and the second material pipe 240 is connected with a material mixing device 250; wherein, compounding device 250 includes jar body 251, and second material pipe 240 is connected in jar body 251 bottom, and jar body 251 top is provided with loading hopper 252, and jar body 251 top is provided with first motor 253, and first motor 253 is connected with the axis of rotation 254 that is located jar body 251, is provided with spiral stirring piece 255 on the axis of rotation 254, and the axis of rotation 254 bottom is provided with a plurality of scraping material pieces 256, scrapes the material piece 256 and is close to jar body 251 inside wall and jar body 251 interior bottom simultaneously.

In this embodiment, the mixing device 250 is used for preparing a filler, and under the action of the material pump 220, the filler in the mixing device 250 at a low position can be conveyed into the material box 161 through the second material pipe 240 and the first material pipe 230, so that the filler does not need to manually climb to a high position to feed into the material box 161, and the safety is improved. When the filler is required to be prepared, when the filler is configured, waste materials such as sawdust or straw powder (formed by 8-9) and the like and adhesive (formed by 1-2) are added into the tank body 251 through the charging hopper 252, the first motor 253 drives the rotating shaft 254 to rotate, the mixture is fully mixed through the spiral stirring piece 255, so that the filler is prepared, the scraping piece 256 is L-shaped, the scraping piece 256 can scrape the mixture adhered to the inner side wall of the tank body 251 and the inner bottom of the tank body 251, insufficient mixing and stacking of the mixture are avoided, and the stirring effect is ensured.

As an alternative embodiment, the rotary table further comprises a base, the base is movably provided with a support column 260, the rotary table 110 is connected to the top of the support column 260, and the base is provided with a rotary driving mechanism 270 for driving the support column 260 to rotate; the rotary driving mechanism 270 includes a second motor 272 disposed on the base, the second motor 272 is connected with a driving gear 272, the driving gear 272 is engaged with a driven gear ring 273, and the driven gear ring 273 is fixedly sleeved on the support column 260.

In this embodiment, the rotation driving mechanism 270 can drive the support column 260 to rotate, so as to drive the rotary table 110 to rotate by a corresponding angle, so as to realize automatic switching of the stations of the forming die 120.

As an alternative embodiment, the bottom of the industrial camera 150 is connected with a plurality of connecting rods 280, the industrial camera 150 is connected with an annular light source 290 through the plurality of connecting rods 280, and the annular light source 290 can improve the exposure degree when the industrial camera 150 collects images, so that the definition of the collected images is improved, and the image features can be accurately identified later. Here, the annular light source 290 includes an annular lampshade, and a circle of annular LED lamps are arranged on the inner wall of the annular lampshade, and the color of the LED lamps is adjustable, so that different photographing requirements can be met.

As an alternative embodiment, the industrial personal computer 310, the industrial camera 150, the top cylinder 180 and the solenoid valve 162 are all electrically connected to the industrial personal computer 310.

In this embodiment, the industrial camera 150 may send the collected image to the industrial personal computer 310, the industrial personal computer 310 is internally provided with image processing software, so as to quickly identify and process the collected image, thereby obtaining defect information of the glass fiber tray 320, so as to determine whether the glass fiber tray 320 is qualified, if the glass fiber tray is qualified, the industrial personal computer 310 sends a signal to the top cylinder 180, the top cylinder 180 ejects and demolds the qualified glass fiber tray 320, if the glass fiber tray is unqualified, the industrial personal computer 310 marks the current forming die 120, when the forming die 120 rotates under the hot pressing mechanism 140 for the second time, the industrial personal computer 310 sends a signal to the electromagnetic valve 162, the electromagnetic valve 162 is opened to enable the filling material to enter the forming die 120, the whole process has high automation degree, and the labor cost is reduced.

It should be noted that, the first motor 253, the second motor 272, the telescopic cylinder 141, the material pump 220, the first temperature controller 210 and the second temperature controller 144 are all electrically connected with the industrial personal computer 310, so as to realize more automatic control.

Example 2

Referring to fig. 1-6, the present embodiment provides a tray forming method, based on the above-mentioned tray forming device, including the following steps:

filling glass fiber rim charge into a corresponding forming die 120 at a first station; the first station is a station on the rotary workbench 110, which is positioned in the area between the hot pressing mechanism 140 and the industrial camera 150 and is used for filling glass fiber rim charge;

rotating the rotary table 110 to rotate the molding die 120 filled with glass fiber rim charge to the second station; the second station is a station on the rotary workbench 110 and located right below the hot pressing mechanism 140;

the hot pressing mechanism 140 is moved downwards to extend into the corresponding forming die 120 so as to form the glass fiber rim charge into a glass fiber tray 320 by hot pressing, and meanwhile, the glass fiber rim charge is filled into the empty forming die 120 at a first station;

rotating the rotary table 110 to rotate the forming die 120 having the glass fiber tray 320 to the third station; the third station is a station on the rotary workbench 110 right below the industrial camera 150;

photographing the forming die 120 currently located at the third station through the industrial camera 150 to identify and acquire an image of the glass fiber tray 320;

processing the image of the glass fiber tray 320 to identify defect information of the edge of the glass fiber tray 320 in the image, and judging whether the current glass fiber tray 320 belongs to a qualified product according to the defect information;

if the current glass fiber tray 320 belongs to a qualified product, demolding the glass fiber tray 320, if the current glass fiber tray does not belong to the qualified product, continuing to rotate the unqualified glass fiber tray 320 to a second station, filling the periphery of the unqualified glass fiber tray 320 through the filling device 160, and then downwards moving the hot pressing mechanism 140 to perform secondary molding on the unqualified glass fiber tray 320.

In this embodiment, when glass fiber rim charge is filled into the corresponding forming mold 120, the glass fiber rim charge can be manually filled, or can be automatically filled by using the corresponding automation equipment, then the forming mold 120 filled with glass fiber rim charge can be rotated under the rotation action of the rotary table 110, the forming mold 120 filled with glass fiber rim charge is stretched into the forming mold 120 (corresponding to the lower mold) under the hot pressing mechanism 140 (corresponding to the upper mold and heated to 160-180 ℃) and then kept at the constant temperature for about 30 minutes, thereby the disordered glass fiber rim charge is hot-pressed into the plate-shaped glass fiber tray 320, then the rotary table 110 is continuously rotated in the same direction for a certain angle, the forming mold 120 for forming the glass fiber tray 320 is rotated to the position under the industrial camera 150, the current forming mold 120 is photographed by the industrial camera 150, thus the image of the glass fiber tray 320 is recognized and obtained, then the image of the glass fiber tray 320 is processed, thereby identifying the defect information of the edge of the glass fiber tray 320 in the image, and according to the defect information, whether the current glass fiber tray 320 belongs to qualified products can be rapidly judged, if the glass fiber tray belongs to the qualified products, the glass fiber tray 320 is demolded and taken out, if the glass fiber tray does not belong to the qualified products, the unqualified glass fiber tray 320 is continuously rotated to a second station, the periphery of the unqualified glass fiber tray 320 is filled through the filling device 160, the hot pressing mechanism 140 is moved downwards to perform secondary forming on the unqualified glass fiber tray 320, thus not only ensuring the forming quality of the glass fiber tray 320, but also ensuring the reasonable use of the filling material, avoiding waste caused by excessive use, simultaneously performing the filling of glass fiber rim charge, the hot pressing forming of the glass fiber tray 320 and the defect detection of the glass fiber tray 320, having the effect of improving the production efficiency, multiple purposes are achieved.

As an optional implementation manner, the processing the image of the glass fiber tray 320 to identify defect information of the edge of the glass fiber tray 320 in the image, and determining whether the current glass fiber tray 320 belongs to a qualified product according to the defect information includes:

gray scale processing and binarization processing are carried out on the image of the glass fiber tray 320 so as to obtain a black-and-white image;

Acquiring a sum area S ', and comparing the sum area S' with a threshold area S _m Comparing if the sum area S' < the threshold area S _m Judging that the current glass fiber tray 320 does not belong to the qualified product, and if the sum area S' is not less than or equal to the threshold area S _m Then enter the next step; wherein the threshold area S _m Is a preset glass fiber tray 320 single-sided area qualification value, and the sum area S' =S ₁ +S ₂ +S ₃ +S ₄ ；

Will have an effective area S ₁ 、S ₂ 、S ₃ 、S ₄ Respectively with threshold area S _n Comparing if the effective area S ₁ 、S ₂ 、S ₃ 、S ₄ Any effective area is smaller than the threshold area S _n Judging that the current glass fiber tray 320 does not belong to the qualified product, if the effective area S ₁ 、S ₂ 、S ₃ 、S ₄ Are all greater than the threshold area S _n Judging that the current glass fiber tray 320 belongs to a qualified product; wherein the threshold area S _n Is the area of a preset rectangular frame.

In this embodiment, when detecting defect information corresponding to the edge of the glass fiber tray 320 in the image, gray processing and binarization processing are performed on the image of the glass fiber tray 320 to obtain a black-and-white image (as shown in fig. 5), the black-and-white image is convenient for subsequent feature extraction and recognition, then the black-and-white image is subjected to image segmentation to be evenly segmented into four sub-images, and the center of the complete rectangular outline of the glass fiber tray 320 should be used for segmentation during segmentation, and the segmentation lines are perpendicular to the rectangular outline, so that the four segmented sub-images correspond to four corners including the glass fiber tray 320, and the four glass fiber trays 320 are fourThe corners are most likely to be defective, so that the corners need to be detected independently, then four rectangular frames with equal areas are respectively constructed according to the outline in the four sub-images, wherein the rectangular frames are one fourth of the complete rectangular outline of the glass fiber tray 320, and the effective areas S of the outline in the four sub-images in the rectangular frames are respectively obtained ₁ 、S ₂ 、S ₃ 、S ₄ Then the defect area can be reflected from the side surface, and the effective area S is calculated and obtained ₁ 、S ₂ 、S ₃ 、S ₄ Sum area S 'after addition, sum area S' and preset threshold area S in database _m Comparing if the sum area S' < the threshold area S _m If the integral defect area is larger, the detection is stopped, the data processing pressure is reduced, and otherwise, the next detection is carried out; because there may be a single defect area in the four sub-images, and the remaining defect areas are small, the final sum area S' still satisfies the fit value, so that further detection is required, i.e., the effective area S ₁ 、S ₂ 、S ₃ 、S ₄ Respectively with threshold area S _n Comparing only the effective area S ₁ 、S ₂ 、S ₃ 、S ₄ Are all greater than the threshold area S _n When the glass fiber tray 320 is in a qualified product, the accurate and effective detection and identification of the edge defect information of the glass fiber tray 320 are realized, and various defect conditions are considered, so that the defect detection precision and comprehensiveness are ensured.

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the application, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims

1. A tray molding device, characterized by comprising:

a rotary table;

the forming dies are arranged at the top of the rotary workbench, and the forming dies are distributed in an annular array around the center of the rotary workbench;

a frame within which the rotary table is located;

the hot pressing mechanism is arranged at the top of the frame and is used for extending into the corresponding forming die to form a glass fiber tray in a hot pressing mode;

the industrial camera is arranged at the top of the frame and is used for photographing the glass fiber tray molded in the forming die so as to identify the defect condition of the current glass fiber tray;

and the filling device is arranged at the top of the frame and is used for filling glass fiber trays which are required to be secondarily molded in the forming die and are right below the hot pressing mechanism.

2. The tray forming device according to claim 1, wherein the forming die is opened up and down, a limit step is arranged at the bottom of the forming die, a movable plate attached to the inner wall of the forming die is arranged on the limit step, a cavity matched with the hot pressing mechanism is formed by surrounding the movable plate and the inner wall of the forming die, a top cylinder arranged on the rotary workbench is connected to the bottom of the movable plate, the top cylinder is used for ejecting the movable plate out of the forming die, a first heating plate is arranged on the inner wall of the forming die, and the first heating plate is electrically connected with a first temperature controller positioned on the outer wall of the forming die.

3. The tray molding device of claim 2, wherein the hot pressing mechanism comprises a telescopic cylinder arranged at the inner top of the frame, a pressing plate is connected to the bottom of the telescopic cylinder, a second heating plate is connected to the bottom of the pressing plate, a second temperature controller is electrically connected to the second heating plate, and the second temperature controller is arranged at the top of the pressing plate.

4. The tray forming device according to claim 2, wherein the filling device comprises a material box arranged at the top of the frame, the material box is filled with filling materials, a plurality of electromagnetic valves are arranged at the bottom of the material box and are connected with discharging pipes, the bottoms of the discharging pipes are arc-shaped sections, and the arc-shaped sections of the discharging pipes are respectively close to the edges of the forming die so as to fill the filling materials around the glass fiber tray.

5. The tray forming device according to claim 4, wherein a material pump is arranged at the top of the material box, the material pump is respectively connected with a first material pipe and a second material pipe, the first material pipe stretches into the material box, and the second material pipe is connected with a material mixing device; wherein,,

the mixing device comprises a tank body, a second material pipe is connected to the bottom of the tank body, a hopper is arranged at the top of the tank body, a first motor is arranged at the top of the tank body and connected with a rotating shaft in the tank body, a spiral stirring piece is arranged on the rotating shaft, a plurality of scraping sheets are arranged at the bottom of the rotating shaft, and the scraping sheets are simultaneously close to the inner side wall of the tank body and the bottom of the tank body.

6. The tray forming device according to claim 1, further comprising a base, wherein a support column is movably arranged on the base, the rotary workbench is connected to the top of the support column, and a rotary driving mechanism for driving the support column to rotate is arranged on the base; wherein,,

the rotary driving mechanism comprises a second motor arranged on the base, the second motor is connected with a driving gear, the driving gear is connected with a driven toothed ring in a meshed mode, and the driven toothed ring is fixedly sleeved on the supporting column.

7. A pallet shaping apparatus as claimed in claim 1, wherein a plurality of connecting rods are connected to the bottom of the industrial camera, and the industrial camera is connected to the annular light source via a plurality of the connecting rods.

8. The pallet shaping apparatus of claim 4 further comprising an industrial personal computer, wherein said industrial camera, said top cylinder and said solenoid valve are all electrically connected to said industrial personal computer.

9. A tray forming method, characterized by being based on a tray forming device according to any one of claims 1-8, comprising the steps of:

filling glass fiber rim charge into a corresponding forming die at a first station; the first station is a station which is positioned in the area between the hot pressing mechanism and the industrial camera and is used for filling glass fiber edges on the rotary workbench;

the hot pressing mechanism moves downwards to extend into a corresponding forming die so as to form a glass fiber tray by hot pressing the glass fiber rim charge, and meanwhile, the glass fiber rim charge is filled into an empty forming die at the first station;

photographing a forming die currently positioned at the third station through the industrial camera to identify and acquire an image of the glass fiber tray;

if the current glass fiber tray belongs to a qualified product, demolding the glass fiber tray, if the current glass fiber tray does not belong to the qualified product, continuing to rotate the unqualified glass fiber tray to the second station, filling the periphery of the unqualified glass fiber tray through the filling device, and then enabling the hot pressing mechanism to move downwards to perform secondary molding on the unqualified glass fiber tray.

10. The method of claim 9, wherein processing the image of the glass fiber tray to identify defect information of an edge of the glass fiber tray in the image, and determining whether the current glass fiber tray belongs to a qualified product according to the defect information, comprises:

respectively acquiring the effective areas S of the outline in the rectangular frame in the four sub-images ₁ 、S ₂ 、S ₃ 、S ₄ ；