Refrigerator door foaming method, foaming process detection method, equipment and medium

Abstract

The present invention relates to the technical field of refrigerator door foaming processing, and specifically relates to a refrigerator door foaming method, a foaming process detection method, equipment, and medium, wherein the detection method includes: obtaining three-dimensional models of multiple foaming molds required in the refrigerator door foaming process, and outer contour data of each foaming mold in an actual mold closing state; controlling the mold closing of the three-dimensional models of each foaming mold according to the outer contour data, so that the mold closing state of the three-dimensional models of each foaming mold is consistent with the actual mold closing state; obtaining the height of the inner cavity defined by the three-dimensional mold of each foaming mold in the mold closing state, and judging whether the thickness of the refrigerator door meets the production requirements based on the height of the inner cavity. The technical solution provided by the present invention solves the problem in the prior art that when the foaming mold is closed, it is impossible to judge whether the thickness of the refrigerator door meets the production requirements because the height of the inner cavity of the foaming mold cannot be detected.

Description

Technical Field

[0001] The present invention relates to the technical field of foaming processing of refrigerator doors, and in particular to a foaming method for refrigerator doors, a detection method, equipment and medium for the foaming process. Background Art

[0002] The structure of a refrigerator door consists of a door assembly, a door lining, and foam. The foam is filled between the door assembly and the door lining to provide insulation. The production process of filling the gap between the door assembly and the door lining with foam is called the foaming process. The foaming process involves first securing the punch and die of the foaming mold to the production line fixture. Then, the pre-formed door lining is placed on the punch and the pre-assembled door assembly is placed into the die. Next, an injection gun is used to inject the foam onto the door assembly in the die. Finally, the door foaming mold is closed, pressing the door lining into the door assembly. At this point, the door lining and door assembly form a sealed cavity, within which the foam expands and forms, filling the entire cavity to form an insulating layer.

[0003] During the foaming process, the gap left after the mold is closed indirectly affects the thickness of the door foam. Therefore, it is necessary to measure the distance between the punch and die after the foaming mold is closed to determine the thickness of the refrigerator door and determine whether the thickness meets production requirements. If not, the staff will be notified to take timely measures to make adjustments. However, the space between the punch and die is closed, making it impossible to place a measuring tool. Therefore, it is impossible to measure the distance between the punch and die, and it is impossible to determine the thickness of the refrigerator door. As a result, when the thickness of the refrigerator door deviates, it is impossible to detect the deviation in time and take remedial measures, resulting in the refrigerator door thickness not meeting production requirements. Summary of the Invention

[0004] The object of the present invention is to provide a foaming method for a refrigerator door, a method, equipment and medium for detecting the foaming process, so as to at least solve the above-mentioned problem that when the foaming mold of the refrigerator door is closed, it is impossible to judge whether the thickness of the refrigerator door meets the production requirements due to the inability to detect the height of the inner cavity of the foaming mold.

[0005] Specifically, in order to at least solve the above problems, the present invention provides the following technical solutions:

[0006] A method for detecting a foaming process of a refrigerator door, comprising:

[0007] Obtain the 3D models of multiple foaming molds required in the refrigerator door foaming process, as well as the outer contour data of each foaming mold in the actual mold closing state;

[0008] Controlling the mold closing of the three-dimensional model of each foaming mold according to the outer contour data, so that the mold closing state of the three-dimensional model of each foaming mold is consistent with the actual mold closing state;

[0009] The height of the inner cavity defined by the three-dimensional mold of each foaming mold in the mold closing state is obtained, and whether the thickness of the refrigerator door meets the production requirements is judged based on the height of the inner cavity.

[0010] According to one embodiment of the present invention, the step of obtaining three-dimensional models of multiple foaming molds required in the foaming process of the refrigerator door includes:

[0011] Acquiring scanning data of the plurality of foaming molds in an open mold state;

[0012] A three-dimensional model of the plurality of foaming molds is established according to the scanning data.

[0013] According to one embodiment of the present invention, the step of obtaining three-dimensional models of multiple foaming molds required in the foaming process of the refrigerator door includes:

[0014] Obtaining a preset three-dimensional model of each foaming mold;

[0015] The parameters of the preset three-dimensional model of each foaming mold are set according to the scanning data to obtain the three-dimensional model of the foaming mold.

[0016] According to one embodiment of the present invention, the step of obtaining three-dimensional models of multiple foaming molds required in the foaming process of the refrigerator door includes:

[0017] Get the model number of the refrigerator door;

[0018] Querying a database according to the model of the refrigerator door to obtain foaming mold information corresponding to the refrigerator door;

[0019] A three-dimensional model library is queried according to the foaming mold information to obtain three-dimensional models of multiple foaming molds required in the refrigerator door foaming process.

[0020] According to one embodiment of the present invention, the three-dimensional model of the foaming mold includes a three-dimensional model of a male mold and a three-dimensional model of a female mold, and obtaining the height of the inner cavity defined by each three-dimensional mold of the foaming mold in a closed mold state includes:

[0021] A plurality of one-to-one corresponding detection points are respectively set on the inner side of the three-dimensional model of the male mold and the inner side of the three-dimensional model of the female mold;

[0022] Obtaining the distances between corresponding detection points when the three-dimensional model of each foaming mold is in a mold closing state;

[0023] The inner cavity height of the three-dimensional model of the foaming mold is calculated according to the distance between each corresponding detection point.

[0024] According to one embodiment of the present invention, the step of calculating the inner cavity height of the three-dimensional model of the foaming mold based on the distances between the corresponding detection points includes:

[0025] Obtaining the maximum and minimum values ​​of the distances between the corresponding detection points, and determining whether the difference between the maximum and minimum values ​​is less than a set difference;

[0026] If it is less than, the average value of the distances between the corresponding detection points is used as the height of the inner cavity defined by the three-dimensional model of the foaming mold.

[0027] According to one embodiment of the present invention, judging whether the bubble thickness of the refrigerator door meets production requirements based on the height of the inner cavity includes:

[0028] When the inner cavity height defined by the three-dimensional model of the foaming mold is not within the preset range, it is determined that the foaming thickness of the refrigerator door is too large or too small, and / or

[0029] When the difference between the maximum value and the minimum value is not less than the set difference, it is determined that the refrigerator door is skewed.

[0030] A method for foaming a refrigerator door comprises: during the foaming process of manufacturing the refrigerator door using multiple actual foaming molds, using the detection method described in any one of the above embodiments to detect whether the thickness of the refrigerator door meets production requirements, and making corresponding adjustments to the mold clamping of the multiple actual foaming molds when the thickness of the refrigerator door does not meet the production requirements.

[0031] A device for detecting the foaming process of a refrigerator door comprises a processor and a memory, wherein the memory stores a computer program for execution on the processor. When the processor executes the computer program, the method for detecting the foaming process of a refrigerator door as described in any one of the above embodiments is implemented.

[0032] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the method for detecting the foaming process of a refrigerator door as described in any one of the above embodiments.

[0033] The technical solution provided in the present application first obtains the three-dimensional models of multiple foaming molds required in the foaming process of the refrigerator door, as well as the outer contour data of the foaming molds in the actual mold closing state, and then controls the mold closing of the three-dimensional model of each foaming mold according to the outer contour data, so that the mold closing state of the three-dimensional model of each foaming mold is consistent with the actual mold closing state. At this time, the three-dimensional model of each foaming mold can simulate the actual mold closing state of the foaming mold; finally, the height of the inner cavity defined by the three-dimensional mold of each foaming mold in the mold closing state is obtained, and whether the thickness of the refrigerator door meets the production requirements is judged based on the height of the inner cavity. The height of the inner cavity defined by the three-dimensional mold of each foaming mold in the mold closing state can be measured on the software, and since the mold closing state of the three-dimensional model of each foaming mold is consistent with the actual mold closing state when the three-dimensional model of each foaming mold is molded, the height of the inner cavity defined by the three-dimensional mold of each foaming mold in the mold closing state is consistent with the height of the inner cavity of the foaming mold in the actual mold closing state. The height of the inner cavity defined by the three-dimensional mold of each foaming mold in the mold closing state can be used as the thickness of the refrigerator door in the actual mold closing state. Therefore, whether the thickness of the refrigerator door meets the production requirements can be judged based on the height of the inner cavity, thereby solving the problem in the prior art that when the foaming mold is closed, it is impossible to judge whether the thickness of the refrigerator door meets the production requirements due to the inability to detect the height of the inner cavity of the foaming mold.

[0034] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0036] Figure 1 is a flow chart of a method for detecting a foaming process of a refrigerator door according to one embodiment of the present invention;

[0037] Figure 2 is a flow chart for obtaining three-dimensional models of multiple foaming molds required in a refrigerator door foaming process according to one embodiment of the present invention;

[0038] Figure 3 is a flow chart of establishing three-dimensional models of foaming molds based on scan data of each foaming mold according to one embodiment of the present invention;

[0039] Figure 4 is a flow chart for obtaining three-dimensional models of multiple foaming molds required in a refrigerator door foaming process according to one embodiment of the present invention;

[0040] Figure 5is a flow chart for obtaining the height of an inner cavity defined by a three-dimensional model of a foaming mold in a mold closing state according to one embodiment of the present invention;

[0041] Figure 6 The flowchart is for calculating the inner cavity height of a three-dimensional model of a foaming mold based on the distance between corresponding detection points according to one embodiment of the present invention. DETAILED DESCRIPTION

[0042] In the description of the present embodiment, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0043] Figure 1 The flowchart of the method for detecting the foaming process of a refrigerator door provided by the present application is shown. The method is used to detect whether the thickness of the refrigerator door meets the production requirements during the foaming process of the refrigerator door. Figure 1 The process shown is a detailed introduction to the detection method of this application.

[0044] Step S1: Acquire three-dimensional models of multiple foaming molds required in the refrigerator door foaming process, as well as outer contour data of the foaming molds in an actual mold closing state.

[0045] In this embodiment, the foaming mold required during the foaming process of the refrigerator door may include a male mold and a female mold. Accordingly, the acquired three-dimensional model of the foaming mold includes a three-dimensional model of the male mold and a three-dimensional model of the female mold. The outer contour data of the foaming mold in the actual mold-clamping state refers to the overall outer contour data formed when the male mold and the female mold are clamped during the foaming process of the refrigerator door. This outer contour data can be obtained by scanning the male mold and the female mold in the actual mold-clamping state using a laser scanning device, obtaining laser scanning points of the male mold and the female mold in the actual mold-clamping state, and then fitting these laser scanning points to obtain the overall outer contour data of the male mold and the female mold in the actual mold-clamping state.

[0046] Step S2: controlling the three-dimensional model clamping of each foaming mold according to the outer contour data of the foaming mold in the actual clamping state, so that the clamping state of the three-dimensional model of the foaming mold is consistent with the actual clamping state.

[0047] In this embodiment, after obtaining the outer contour data of the foaming mold in the actual mold closing state, the relative positional relationship between the punch and the die can be obtained based on the outer contour data, for example, the distance between the respective boundaries of the punch and the die. The three-dimensional models of the punch and the die are then placed in a three-dimensional coordinate system. The three-dimensional model of the punch is then used as a reference, the position of the three-dimensional model of the punch is maintained unchanged, and the position of the three-dimensional model of the die is changed so that the three-dimensional models of the punch and the three-dimensional model of the die are closed. After the three-dimensional models of the punch and the die are closed, the relative positional relationship between the three-dimensional models of the punch and the die is consistent with the relative positional relationship between the two in the actual mold closing state, thereby making the closed state of the three-dimensional models of the punch and the die consistent with the actual closed state. At this time, the three-dimensional models of the punch and the die can simulate the actual closed state of the punch and the die.

[0048] Step S3: obtaining the height of the inner cavity defined by the three-dimensional mold of each foaming mold in the mold closing state, and judging whether the thickness of the refrigerator door meets the production requirements based on the height of the inner cavity.

[0049] In this embodiment, since the 3D models of the punch and the die are both placed in a 3D coordinate system, the positions of the inner sides of the 3D models of the punch and the die in the 3D coordinate system in the closed state can be obtained. Based on these positions, the height of the inner cavity defined by each foaming mold in the closed state can be calculated. This inner cavity height corresponds to the thickness of the refrigerator door, and thus this inner cavity height can be used as the thickness of the refrigerator door. After obtaining the thickness of the refrigerator door, the thickness of the refrigerator door can be compared with production requirements to determine whether the thickness of the refrigerator door meets production requirements, for example, whether the thickness of the refrigerator door is too large or too small, or whether the refrigerator door is offset.

[0050] From the above content, it can be seen that the detection method of the refrigerator door foaming process provided in the present application can use the three-dimensional model of the foaming mold to simulate the actual mold closing state of the foaming mold, so that the height of the inner cavity defined by the three-dimensional mold of each foaming mold in the mold closing state is consistent with the height of the inner cavity of the foaming mold in the actual mold closing state, and then measure the height of the inner cavity defined by the three-dimensional mold of each foaming mold in the mold closing state on the software, thereby realizing the detection of the thickness of the refrigerator door in the actual mold closing state, and solving the problem in the prior art that when the foaming mold is closed, it is impossible to determine whether the thickness of the refrigerator door meets the production requirements due to the inability to detect the height of the inner cavity of the foaming mold.

[0051] In one embodiment, in the above step S1, the process of obtaining the three-dimensional models of multiple foaming molds required in the refrigerator door foaming process is as follows: Figure 2 Shown, including:

[0052] Step S101: Obtain scanning data of multiple foaming molds required for the refrigerator door foaming process. In this embodiment, when each foaming mold is in the mold opening state, a laser scanning device can be used to scan each foaming mold to obtain laser scanning points of each foaming mold and scanning data of each foaming mold at the laser scanning points.

[0053] Step S102: Build a 3D model of each foaming mold based on the scanned data of each foaming mold. In this embodiment, the scanned data of each foaming mold can be fitted to obtain the boundaries of each foaming mold. The boundaries of each foaming mold are then positioned according to their positions within the foaming mold to obtain a 3D model of each foaming mold. For example, the scanned data of a punch can be fitted to obtain the size and position of each boundary of the punch. Based on the size and position of each boundary, a 3D model of the punch can be constructed.

[0054] In one embodiment, the process of establishing the three-dimensional model of each foaming mold according to the scanning data of each foaming mold in step S102 is as follows: Figure 3 Shown, including:

[0055] Step S111: Obtain the preset three-dimensional model of each foaming mold. In this embodiment, the preset three-dimensional model of each foaming mold can be a pre-established three-dimensional model of each foaming mold. Since many refrigerator doors have similar shapes but different sizes, the foaming molds of many refrigerator doors also have similar shapes but different sizes. In this embodiment, preset three-dimensional models of corresponding foaming molds can be pre-established for various refrigerator doors with similar shapes. When it is necessary to obtain the preset three-dimensional model of the foaming mold, the corresponding preset three-dimensional model of the foaming mold is selected according to the type of refrigerator door.

[0056] Step S112: Based on the scan data of each foaming mold, the parameters of the preset three-dimensional model of each foaming mold are set to obtain the three-dimensional model of each foaming mold. In this embodiment, the boundaries of each foaming mold can be fitted based on the scan data of each foaming mold to obtain the boundaries of each foaming mold and obtain the dimensions of the boundaries of each foaming mold. Then, based on the dimensions of the boundaries of each foaming mold, the dimensions of the boundaries of the preset three-dimensional model of each foaming mold are set to ensure that the length of the boundaries of the preset three-dimensional model of each foaming mold is consistent with the actual boundary length of each foaming mold, thereby obtaining the three-dimensional model of each foaming mold.

[0057] The setting method of this embodiment is to set the preset three-dimensional model of each foaming mold through the scanning data of each foaming mold to obtain the three-dimensional model of each foaming mold. Compared with directly fitting the scanning data of each foaming mold to obtain the three-dimensional model of each foaming mold, it can reduce the amount of data calculation and improve the work efficiency of establishing the three-dimensional model of each foaming mold.

[0058] In one embodiment, a database and a three-dimensional model library can be pre-established, wherein the database stores information on foaming molds corresponding to various types of refrigerator doors. For example, the foaming mold corresponding to the refrigerator door model A1 includes a male mold model B1 and a female mold model C1. The three-dimensional model library stores three-dimensional models of various foaming molds, such as the three-dimensional model of the male mold model B1 and the three-dimensional model of the female mold model C1. In the above step S1, the process of obtaining the three-dimensional models of multiple foaming molds required in the refrigerator door foaming process is as follows: Figure 4 Shown, including:

[0059] Step S121: Obtaining the model of the refrigerator door. In this embodiment, the refrigerator door is a refrigerator door that needs to be foamed. When the refrigerator door needs to be foamed, a staff member can input a signal of the refrigerator door, and the execution body of the detection method (i.e., the processor, controller, etc. that executes the detection method of the present application) can obtain the model of the refrigerator door based on the information input by the staff member.

[0060] Step S122: querying the database according to the model of the refrigerator door to obtain the foaming mold information corresponding to the refrigerator door, that is, obtaining the model of the foaming mold corresponding to the refrigerator door model.

[0061] Step S123: query the three-dimensional model database according to the foaming mold information corresponding to the refrigerator door, and obtain the corresponding three-dimensional model of the foaming mold from the three-dimensional model database. The corresponding three-dimensional model of the foaming mold is the three-dimensional model of multiple foaming molds required in the foaming process of the refrigerator door.

[0062] The setting method of this embodiment obtains the three-dimensional models of multiple foaming molds required in the refrigerator door foaming process through a database and a three-dimensional model library. Compared with the method of using scanning data to establish a three-dimensional model of the foaming mold, it can reduce the amount of data calculation and improve the work efficiency of obtaining the three-dimensional model of the foaming mold.

[0063] In one embodiment, the process of obtaining the height of the inner cavity defined by the three-dimensional model of the foaming mold in the mold closing state is as follows: Figure 5 As shown, the following steps are included:

[0064] Step S301: Multiple, one-to-one corresponding detection points are set on the inner sides of the three-dimensional models of the punch and the inner sides of the three-dimensional models of the die. In this embodiment, the inner side of the three-dimensional model of the punch refers to the side closest to the three-dimensional model of the die when the mold is closed. Multiple, evenly distributed detection points can be set on the inner side of the three-dimensional model of the punch. Then, multiple detection points corresponding to the detection points on the inner side of the three-dimensional model of the punch can be set on the inner side of the three-dimensional model of the die. When the three-dimensional models of the punch and the die are closed, the corresponding detection points are positioned relative to each other and the distance between them is minimized.

[0065] Step S302: When the three-dimensional models of each foaming mold are in the closed state, the distances between corresponding detection points are obtained. In this embodiment, since the three-dimensional models of the punch and the three-dimensional models of the die are both placed in a three-dimensional coordinate system, when the three-dimensional models of the punch and the die are in the closed state, the coordinates of each detection point in the three-dimensional coordinate system can be obtained. Then, based on the coordinates of each detection point, the distances between corresponding detection points are calculated.

[0066] Step S303: Calculate the inner cavity height defined by the three-dimensional model of the foaming mold based on the distances between the corresponding detection points. In this embodiment, the average value of the distances between the corresponding detection points can be calculated and used as the distance between the corresponding detection points.

[0067] The setting method of this embodiment calculates the height of the inner cavity defined by the three-dimensional model of the foaming mold in the mold closing state through multiple groups of corresponding detection points. Compared with the method of measuring the height of the inner cavity in the software, on the one hand, it can reduce the amount of data calculation, and on the other hand, it can improve the accuracy of the calculation results.

[0068] In one embodiment, in step S303, the process of calculating the inner cavity height of the foaming mold three-dimensional model according to the distance between each corresponding detection point is as follows: Figure 6 As shown, the following steps are included:

[0069] Step S311: obtaining the maximum and minimum values ​​of the distances between corresponding detection points, and determining whether the difference between the maximum and minimum values ​​is less than a set difference.

[0070] Step S312: If it is less than, the average value of the distances between the corresponding detection points is used as the inner cavity height of the three-dimensional model of the foaming mold.

[0071] In this embodiment, when the detected distances between corresponding detection points differ greatly, there may be errors in the calculation results of the distances between the detection points, or the refrigerator door may be skewed. At this time, the calculated inner cavity height cannot truly reflect the thickness of the refrigerator door. Therefore, in this embodiment, only when the difference between the maximum and minimum values ​​of the distances between the corresponding detection points is less than the set difference, the inner cavity height defined by the three-dimensional model of the foaming mold is calculated based on the distances between the corresponding detection points, which can improve the reliability of the obtained inner cavity height.

[0072] Furthermore, in one embodiment, judging whether the foam thickness of the refrigerator door meets the production requirements based on the inner cavity height defined by the three-dimensional model of the foaming mold in the above step S3 includes: when the inner cavity height defined by the three-dimensional model of the foaming mold is not within a preset range, judging that the foam thickness of the refrigerator door is too large or too small; and / or when the difference between the maximum and minimum values ​​of the distance between each corresponding detection point is not less than the set difference, judging that the refrigerator door is skewed.

[0073] In this embodiment, the preset range can be determined based on the standard thickness of the refrigerator and the maximum error. For example, when the standard thickness of the refrigerator is L and the maximum error is α, the maximum value of the preset range is L+αL, and the minimum value is L-αL. When the calculated height of the inner cavity defined by the three-dimensional model of the foaming mold is greater than L+αL, the thickness of the refrigerator door can be considered too large; when the calculated height of the inner cavity defined by the three-dimensional model of the foaming mold is less than L-αL, the thickness of the refrigerator door can be considered too small. In addition, when the difference between the maximum and minimum values ​​of the distances between the corresponding detection points is not less than the set difference, it can be considered that the height of the inner cavity defined by the three-dimensional model of the foaming mold is inconsistent, and the thickness of the refrigerator door is skewed, and the direction of the skew is: the thickness becomes thinner from the location of the detection point corresponding to the maximum value toward the location of the detection point corresponding to the minimum value.

[0074] In one embodiment, the present application provides a foaming method for a refrigerator door. In the foaming process of manufacturing the refrigerator door using multiple actual foaming molds, the foaming method uses the detection method described in any of the above embodiments to detect whether the thickness of the refrigerator door meets the production requirements, and makes corresponding adjustments to the mold closing of the multiple actual foaming molds when the thickness of the refrigerator door does not meet the production requirements. For example, when the thickness of the refrigerator door is too large, the inner cavity height of the foaming mold is reduced to reduce the thickness of the refrigerator door; when the thickness of the refrigerator door is too small, the inner cavity height of the foaming mold is increased to increase the thickness of the refrigerator door; when the refrigerator door is tilted, the relative positions of the foaming molds are corrected, etc.

[0075] The present invention also provides a device for detecting the foaming process of a refrigerator door, which includes a processor, a memory, a communication interface and a communication bus. The processor, the memory and the communication interface communicate with each other through the communication bus. The processor is used to provide computing and control capabilities. The memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and computer program instructions. The internal memory provides an environment for the operation of the operating system and computer program instructions in the non-volatile storage medium. The communication interface of the above-mentioned device is used to communicate with an external terminal in a wired or wireless manner. The wireless manner can be achieved through WIFI, an operator network, NFC (near field communication) or other technologies. The device for detecting the foaming process of a refrigerator door provided in this embodiment has a memory for storing computer program instructions. When the computer program instructions are executed by the processor, multiple embodiments of the above-mentioned method for detecting the foaming process of the refrigerator door can be implemented.

[0076] The present invention also provides a computer-readable storage medium. It will be understood by those skilled in the art that all or part of the processes in the above-mentioned detection method embodiment of the refrigerator door foaming process can be completed by instructing the relevant hardware through computer program instructions, and the computer program instructions can be stored in a non-volatile computer-readable storage medium. When the computer program instructions are executed, they may include the processes of the above-mentioned method embodiments. Among them, any reference to memory, storage, database or other media used in the various embodiments provided by the present invention may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0077] At this point, those skilled in the art will recognize that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. A method for detecting the foaming process of a refrigerator door, characterized in that: include: Obtain the 3D models of multiple foaming molds required in the refrigerator door foaming process, as well as the outer contour data of each foaming mold in the actual mold closing state; Controlling the mold closing of the three-dimensional model of each foaming mold according to the outer contour data, so that the mold closing state of the three-dimensional model of each foaming mold is consistent with the actual mold closing state; Obtaining the height of the inner cavity defined by the three-dimensional mold of each foaming mold in the mold closing state, and judging whether the thickness of the refrigerator door meets the production requirements based on the height of the inner cavity; The three-dimensional model of the foaming mold includes a three-dimensional model of a male mold and a three-dimensional model of a female mold; the step of obtaining the height of the inner cavity defined by each three-dimensional mold of the foaming mold in a mold-closing state includes: A plurality of one-to-one corresponding detection points are respectively set on the inner side of the three-dimensional model of the male mold and the inner side of the three-dimensional model of the female mold; Obtaining the distances between corresponding detection points when the three-dimensional model of each foaming mold is in a mold closing state; Calculating the inner cavity height of the three-dimensional model of the foaming mold according to the distance between each corresponding detection point; Calculating the inner cavity height of the three-dimensional model of the foaming mold according to the distances between the corresponding detection points includes: Obtaining the maximum and minimum values ​​of the distances between the corresponding detection points, and determining whether the difference between the maximum and minimum values ​​is less than a set difference; If it is less than, the average value of the distances between the corresponding detection points is used as the inner cavity height defined by the three-dimensional model of the foaming mold; The step of judging whether the bubble thickness of the refrigerator door meets production requirements according to the height of the inner cavity includes: When the inner cavity height defined by the three-dimensional model of the foaming mold is not within the preset range, it is determined that the foaming thickness of the refrigerator door is too large or too small, and / or When the difference between the maximum value and the minimum value is not less than the set difference, it is determined that the refrigerator door is skewed.

2. The method for detecting the foaming process of a refrigerator door according to claim 1, characterized in that: The method of obtaining three-dimensional models of multiple foaming molds required in the refrigerator door foaming process includes: Acquiring scanning data of the plurality of foaming molds in an open mold state; A three-dimensional model of the plurality of foaming molds is established according to the scanning data.

3. The method for detecting the foaming process of a refrigerator door according to claim 2, characterized in that: The method of obtaining three-dimensional models of multiple foaming molds required in the refrigerator door foaming process includes: Obtaining a preset three-dimensional model of each foaming mold; The parameters of the preset three-dimensional model of each foaming mold are set according to the scanning data to obtain the three-dimensional model of the foaming mold.

4. The method for detecting the foaming process of a refrigerator door according to claim 1, characterized in that: The method of obtaining three-dimensional models of multiple foaming molds required in the refrigerator door foaming process includes: Get the model number of the refrigerator door; Querying a database according to the model of the refrigerator door to obtain foaming mold information corresponding to the refrigerator door; A three-dimensional model library is queried according to the foaming mold information to obtain three-dimensional models of multiple foaming molds required in the refrigerator door foaming process.

5. A foaming method for a refrigerator door, characterized in that: include: In the foaming process of manufacturing refrigerator doors using actual multiple foaming molds, the detection method described in any one of claims 1 to 4 is used to detect whether the thickness of the refrigerator door meets the production requirements, and when the thickness of the refrigerator door does not meet the production requirements, the actual multiple foaming molds are adjusted accordingly.

6. A detection device for the foaming process of refrigerator doors, characterized in that: The method comprises a processor and a memory, wherein the memory stores a computer program for execution on the processor, and when the processor executes the computer program, the method for detecting the foaming process of the refrigerator door according to any one of claims 1 to 4 is implemented.

7. A computer-readable storage medium, characterized in that A computer program is stored thereon, and when the computer program is executed by a processor, the method for detecting the foaming process of a refrigerator door as described in any one of claims 1 to 4 is implemented.

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