Method of controlling a press line

Abstract

This invention discloses a control method for a pressure processing production line, comprising the following steps: acquiring the label information of the flow tooling at the loading station, and confirming the target upper mold based on the label information; if the position of the target upper mold corresponds to the carrier, controlling the conveying device to transfer the flow tooling with the product to be processed to the processing station and place it on the carrier; acquiring the position information of the flow tooling at each station; when the position information of the flow tooling at each station meets preset requirements, controlling the pressure processing equipment to work to process the product; when the pressure processing equipment completes processing, controlling the conveying device to transfer the flow tooling with the processed product to the unloading station. The entire processing process has a high degree of automation, integrating automatic loading, processing, and unloading, and has good processing stability. Stable production at the processing station is ensured by reasonably controlling the working timing of each component.

Description

Technical Field

[0001] This invention relates to the field of pressure equipment processing technology, and in particular to a control method for pressure processing production lines. Background Technology

[0002] With the development of the manufacturing industry, the requirements for product component assembly are becoming increasingly stringent. In mold processing such as hot press molds, injection molds, and paper-plastic molds, various products require individual molds based on their different shapes and structures. Due to the different cavity structures of different molds, pressure processing equipment is usually used for single-product production. If a product needs to be changed, it takes a long time to change the product mold, especially for some mold structures with complex mold cores. Disassembling and replacing the mold core is time-consuming and affects the production schedule. Summary of the Invention

[0003] The main objective of this invention is to propose a control method for a pressure processing production line that can be adapted to the production and processing of multiple products. During the processing, it can detect the processed materials and quickly switch between different upper dies, resulting in better flexibility and a higher degree of production automation.

[0004] To achieve the above objectives, the present invention proposes a control method for a pressure processing production line. The pressure processing production line has a loading station, a processing station, and a discharging station spaced apart along a first direction. The pressure processing production line includes pressure processing equipment and a conveying device. The pressure processing equipment is arranged corresponding to the processing station. The pressure processing equipment includes an upper mold frame and a lower mold frame that are vertically opposite and movable relative to each other. The lower mold frame is provided with a support seat for placing a flow tooling on which a workpiece to be processed is placed. The upper mold frame includes a movable plate arranged along a first horizontal direction. At least two upper molds of different models are installed on the movable plate. The conveying device is used to transport each flow tooling sequentially through the loading station, the processing station, and the discharging station.

[0005] The control method for the pressure processing production line includes the following steps:

[0006] Obtain the label information of the flow tooling located at the loading station, and confirm the target upper mold based on the label information;

[0007] If the position of the target upper mold corresponds to the carrier, control the conveying device to transfer the flow tooling with the product to be processed to the processing station and place it on the carrier;

[0008] Obtain the location information of the flow tooling at each workstation;

[0009] When the position information of the flow tooling at each workstation meets the preset requirements, the pressure processing equipment is controlled to work to process the product.

[0010] When the pressure processing equipment finishes processing, the control device will transfer the flow tooling containing the processed product to the discharge station.

[0011] Optionally, the step of "obtaining the label information of the flow tooling at the loading station and confirming the target upper mold based on the label information" further includes:

[0012] If the position of the target upper mold does not match the support seat;

[0013] Obtain processing progress information from pressure processing equipment;

[0014] Based on the processing progress information, the movable plate is controlled to move to adjust the position of the target upper mold, or the movable plate is controlled to move to adjust the position of the target upper mold after the pressure processing equipment has finished processing.

[0015] Optionally, in the step of "controlling the pressure processing equipment to work to process products when the position information of the flow tooling at each station meets the preset requirements",

[0016] When there is a flow tooling on the carrier, obtain the actual label information of the flow tooling located on the carrier;

[0017] When the actual label information matches the target upper mold, the pressure processing equipment is controlled to work to process the product.

[0018] Optionally, the pressure processing production line includes two stop assemblies and multiple detection components. The two stop assemblies include a first stop assembly and a second stop assembly, which are respectively located on the sides of the processing station corresponding to the loading station and the unloading station. The multiple detection components include a first detection component, a second detection component, a third detection component, and a fourth detection component. The fourth detection component is located at the unloading station and can avoid the empty upper mold when the pressure processing equipment closes the mold. The third detection component is located on the side of the second stop assembly facing away from the processing station, and controls the second stop assembly to close based on the result of the third detection component. The second detection component is located at the processing station and is set corresponding to the bearing seat. The first detection component is located on the side of the first stop assembly facing the processing station, and controls the first stop assembly to close based on the result of the first detection component.

[0019] The step of obtaining the location information of the flow tooling at each workstation includes:

[0020] The detection information of multiple test pieces is obtained to confirm the location information of the flow tooling at each station, wherein the detection information includes whether there is flow tooling or not.

[0021] In the step of "controlling the pressure processing equipment to process products when the position information of the flow tooling at each workstation meets the preset requirements",

[0022] When the detection information of the first detection piece, the third detection piece, and the fourth detection piece are all "no flow tooling", and the detection information of the second detection piece is "with flow tooling", the preset requirements are met.

[0023] Optionally, the pressure processing production line includes at least one stop assembly and multiple detection elements. The stop assembly is located on the side of the pressure processing equipment facing the loading station. Two of the multiple detection elements are respectively located on opposite sides of the corresponding stop assembly and are located at the loading station and the processing station.

[0024] In the step of "if the position of the target upper mold corresponds to the carrier, control the conveying device to transfer the flow tooling with the product to be processed to the processing station and place it on the carrier":

[0025] Obtain the detection information of the two corresponding detection components;

[0026] The corresponding stop component is opened and closed according to the detection information, so that the flow tooling is transferred by the conveying device to the processing station or stays at the loading station.

[0027] Optionally, the pressure processing production line includes at least one stop assembly, which is located on the side of the pressure processing equipment facing the discharge station. In the step of "when the pressure processing equipment completes processing, controlling the conveying device to transfer the flow tooling containing the processed product to the discharge station":

[0028] Obtain the duration for which the stop component remains closed;

[0029] When the maintenance time meets the preset duration, the stop component is controlled to open so that the conveying device can transport the processed product to the discharge station.

[0030] Optionally, the movable plate is provided with two modules spaced apart along a first horizontal direction, each module including two upper molds spaced apart along a second horizontal direction, and two corresponding support seats are provided;

[0031] In the step of "controlling the pressure processing equipment to process products when the position information of the flow tooling at each workstation meets the preset requirements",

[0032] When both of the aforementioned support seats are equipped with flow fixtures, and the label information of both flow fixtures matches the current corresponding upper mold, the pressure processing equipment is controlled to work to process the product.

[0033] Optionally, the upper molds in the two modules may be of different models, or the two upper molds in each module may be of different models;

[0034] The step of "obtaining the label information of the flow tooling at the loading station and confirming the target upper mold based on the label information" includes:

[0035] Obtain the label information of the two flow fixtures located at the loading station;

[0036] When the two label information meet the preset arrangement;

[0037] The target module is identified based on the two label information, and the two upper modules in the target module are taken as the target upper modules.

[0038] Optionally, the conveying device includes two synchronous belts spaced apart on both sides of the bearing seat along the second horizontal direction, and the pressure processing production line also includes a lifting structure located at the loading station. The lifting structure includes a lifting platform located between the two synchronous belts. The lifting platform is movable in the vertical direction, and a reader is provided on the upper surface of the lifting platform.

[0039] The step of "obtaining the label information of the flow tooling at the loading station and confirming the target upper mold based on the label information" includes:

[0040] Control the lifting platform to move upwards to lift one of the flow tools upwards until it is disengaged from the two synchronous belts;

[0041] Obtain the tag information of the circulation tooling detected by the reader;

[0042] The lifting platform is controlled to move downward so that the flow tooling falls back onto the two synchronous belts.

[0043] Optionally, the conveying device includes two synchronous belts spaced apart on both sides of the support seat along a second horizontal direction, and both synchronous belts can move vertically.

[0044] In the step of "if the position of the target upper mold corresponds to the carrier, control the conveying device to transfer the flow tooling with the product to be processed to the processing station and place it on the carrier",

[0045] The two timing belts are controlled to fall synchronously until they are below the upper end of the support, so that the flow tooling with the product to be processed is placed on the support.

[0046] In the step of "when the pressure processing equipment completes processing, control the conveying device to transfer the flow tooling containing the processed product to the discharge station",

[0047] The two timing belts are controlled to move upward synchronously to drive the flow tooling with the processed product to detach from the carrier, and can be moved along with the two timing belts.

[0048] In the technical solution of this invention, on a pressure processing production line, there are multiple upper dies whose positions can be flexibly switched. Before processing, the label information of the flow tooling at the loading station is obtained, thereby determining that the upper die corresponding to the current incoming product is the target upper die. When the position of the target upper die corresponds to the carrier, the control conveying device transfers the flow tooling to the processing station and it cooperates with the carrier to wait for processing. The position information of the flow tooling at each station is obtained to confirm the presence or absence of the flow tooling at each station, thereby ensuring safety during mold closing and preventing idle upper dies not above the carrier from damaging the processed product that is about to be discharged or has not yet been placed on the carrier when the mold is closed, thus causing product scrap. The entire processing process has a high degree of automation, integrating automatic loading, processing, and discharge, and the processing stability is good. Stable production at the processing station is ensured by reasonably controlling the working timing of each component. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0050] Figure 1 A perspective view of a pressure processing production line (an embodiment) provided by the present invention;

[0051] Figure 2 for Figure 1 A three-dimensional schematic diagram of the upper and middle mold frame;

[0052] Figure 3 for Figure 1 A three-dimensional schematic diagram of the central lifting structure;

[0053] Figure 4 A three-dimensional schematic diagram of a pressure processing production line (another embodiment) provided by the present invention;

[0054] Figure 5 for Figure 4 A three-dimensional schematic diagram of the cooperation between the two conveying devices;

[0055] Figure 6 for Figure 4 A three-dimensional schematic diagram of the upper and middle mold frame;

[0056] Figure 7 for Figure 4 A three-dimensional schematic diagram of the lower and middle mold frames;

[0057] Figure 8 A flowchart illustrating the control method for a pressure processing production line provided for the invention;

[0058] Figure 9 for Figure 8 Flowchart of the control method for a medium-pressure machining production line.

[0059] Explanation of icon numbers:

[0060]

[0061]

[0062] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0063] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0064] It should be noted that if the embodiments of the present invention involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0065] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0066] Figures 1 to 7 An embodiment of the pressure processing production line provided by the present invention. Figures 8 to 9 This is an embodiment of the control method for the pressure processing production line provided by the present invention.

[0067] Please refer to Figures 1 to 2 , Figure 4 and Figure 6 The pressure processing production line 1000 has a loading station b, a processing station c, and a discharging station d spaced apart along a first direction. The pressure processing production line 1000 includes a pressure processing device 100, a conveying device 200, two stop assemblies 300, and multiple detection components 400. The pressure processing device 100 is positioned corresponding to the processing station c. The pressure processing device 100 includes an upper mold frame 2 and a lower mold frame 1 that are vertically opposite and movable relative to each other. The lower mold frame 1 is provided with a support seat 11 for placing a flow tool a containing the workpiece to be processed. The upper mold frame 2 includes a movable plate 22 that is movably arranged along a first horizontal direction. At least two upper molds 23 of different models are installed on the movable plate 22. The conveying device 200 is used to convey each flow tool a through the loading station b, the processing station c, and the unloading station d in sequence. Two stop components 300 are respectively located on both sides of the processing station c corresponding to the loading station b and the unloading station d. A plurality of detection elements 400 are distributed at intervals along the first horizontal direction to detect the position of the flow tool a at each station.

[0068] In the technical solution of this invention, the workpiece to be processed is placed and rotated through the circulation fixture a. The support seat 11 is adapted to the circulation fixture a. Even if different products are placed on the circulation fixture a, the corresponding support seat 11 does not need to be adjusted. The movable plate 22 is provided with at least two upper molds 23 of different models for matching the processing of different models of products. When switching products, the movable plate 22 is driven to move along the first horizontal direction, which changes the position of the two upper molds 23. The upper mold 23 matching the current product is moved to correspond with the support seat 11, thereby performing mold closing to complete product processing. This equipment can adapt to the processing of multiple products. The support seat 11 is universal, the switching method of the upper mold 23 is simple, less time is spent, and it is more convenient.

[0069] It should be noted that the pressure processing equipment 100 can be a cold pressing mold, a hot pressing mold, or even a paper-plastic mold, and the present invention does not limit it.

[0070] This invention does not limit the specific form in which the conveying device 200 realizes its conveying function. It can be reasonably configured according to the actual setting space and the coordination of each component, through methods such as conveyor belt conveying, suction cup and linear module cooperation. In this embodiment, the conveying device 200 includes two synchronous belts 210 spaced apart on both sides of the bearing seat 11 along the second horizontal direction. Both synchronous belts 210 can move vertically and are used to jointly carry and convey multiple flow tools a along the first horizontal direction. Two stop components 300 are disposed between the two synchronous belts 210 and are respectively disposed on both sides of the pressure processing equipment 100 in the first horizontal direction.

[0071] In one embodiment, the stop assembly 300 includes a stop portion 310 movably disposed in the vertical direction, the stop portion 310 being used to contact the side of one of the flow tooling a to block its movement. This invention does not limit the structural form and driving method of the stop assembly 300; the stop portion 310 can be configured as a plate-like structure and driven up and down by a cylinder. This invention does not limit the structural form and driving method of the stop assembly 300; the stop portion 310 can be configured as a plate-like structure and driven up and down by a cylinder. The stop portion 310 can also be configured as a regular or irregular shape such as a U-shape or T-shape, and the driving method can also be a lead screw structure; this invention does not impose any limitations on these aspects.

[0072] Different detection elements 400 correspond to different positions, distributed at the loading station b, processing station c, and unloading station d, and can detect the incoming material status, processing status, and unloading status. It should be understood that the specific structural form of the detection element 400 is not limited, as long as it meets its function. It can be a photoelectric sensor, proximity switch, etc., and this invention does not impose any restrictions on it.

[0073] Furthermore, the two stop components 300 include a first stop component and a second stop component, respectively located on the side of the processing station c corresponding to the loading station b and the unloading station d. The multiple detection components 400 include a first detection component, a second detection component, a third detection component, and a fourth detection component. The fourth detection component is located at the unloading station d and can avoid the empty upper mold 23 when the pressure processing equipment 100 closes the mold. The third detection component is located on the side of the second stop component facing away from the processing station c, and controls the second stop component to close based on the result of the third detection component. The second detection component is located at the processing station c and is set corresponding to the bearing seat 11. The first detection component is located on the side of the first stop component facing the processing station c, and controls the first stop component to close based on the result of the first detection component. The core function of the four detection components 400 mentioned above is to detect the status of the flow tooling a within the processing station c, involving entry, dwell, and exit. This is because there are multiple upper molds 23 on the movable plate 22. During processing, there is always an idle upper mold 23 on one side of the bearing seat 11 in the first horizontal direction. If there are other flow tooling a within the coverage area of ​​the idle upper mold 23, there is a risk that the idle upper mold 23 will crush the product on the flow tooling a when the upper mold frame 2 closes. The second detection component is to detect the presence or absence of flow tooling a on the bearing seat 11. The first and third detection components can detect whether other flow tooling a to be processed enters and whether processed flow tooling a exits. The fourth detection component and the first detection component detect the flow tooling a on both sides of the bearing seat 11 in the first horizontal direction, thereby ensuring that there are no other flow tooling a within the coverage area of ​​the idle upper mold 23.

[0074] In this embodiment, please refer to Figure 5 The pressure processing production line 1000 has a loading station b, a processing station c, and a discharging station d spaced apart along a first direction. The pressure processing equipment 100 is arranged corresponding to the processing station c. A first stop assembly and a second stop assembly are respectively located on the sides of the processing station c corresponding to the loading station b and the discharging station d. Seven detection elements 400 are arranged corresponding to a conveying device 200. Along the conveying direction, the first detection element 400 corresponds to the feed end of the loading station b, followed by the second and third detection elements. Three detection elements 400 are respectively disposed on the front and rear sides of the first stop assembly and are electrically connected to the first stop assembly. The fourth detection element 400 is located at the processing station c and is disposed corresponding to the bearing seat 11. The fifth detection element 400 is disposed on the side of the second stop assembly facing the discharge station d and is electrically connected to it. The sixth detection element 400 corresponds to the middle of the discharge station d and can avoid the empty upper mold 23 when the pressure processing equipment 100 closes the mold. The last detection element 400 corresponds to the discharge end of the discharge station d.

[0075] Considering that the flow tool a will experience some shaking during its movement with the timing belt 210, please refer to... Figure 3 The pressure processing production line 1000 also includes a lifting structure 500, which includes a mounting platform 510 and a lifting platform 520. The mounting platform 510 is located below the two synchronous belts 210 and is on the side of one of the stop components 300 facing away from the pressure processing equipment 100. The lifting platform 520 is located between the two synchronous belts 210 and is movably mounted to the mounting platform 510 in the vertical direction. The upper end face of the lifting platform 520 is provided with a second reader. The lifting platform 520 can drive the corresponding flow tool a to disengage from the two synchronous belts 210. Initially, the lifting platform 520 is located below the two synchronous belts 210, positioned close to one of the stop components 300. When the flow tool a is blocked by the stop component 300, the lifting platform 520 is driven to move upward until the corresponding flow tool a is lifted a certain distance. At this time, the flow tool a is placed stably on the lifting platform 520, so that the second reader can accurately read the product information and upload it to the control system. After reading, the lifting platform 520 falls, causing the flow tool a to fall back onto the synchronous belt 210, so that it can continue to flow.

[0076] It should be understood that the dimension of the lifting platform 520 in the second horizontal direction should be smaller than the distance between the two synchronous belts 210, and the dimension of the stop part 310 in the vertical direction should be adapted to the vertical movement stroke of the synchronous belt 210.

[0077] Depending on production needs, the pressure processing equipment 100 can be designed as a single-cavity processing device or a multi-cavity processing device. For example, the movable plate 22 is provided with two modules spaced apart along the first horizontal direction. Each module includes two upper dies 23 spaced apart along the second horizontal direction. The bearing seat 11 is provided with two corresponding upper dies. In this case, the two upper dies 23 in each module can be produced synchronously, thereby improving production efficiency.

[0078] During mold production, there is only one support seat 11. Considering the mold structure corresponding to different products, the mold closing height may vary. In one embodiment, please refer to... Figure 1 and Figure 2Each upper mold 23 includes a mounting plate and a mold core located in the middle of the mounting plate. The mounting plate is fixed to the movable plate 22. The periphery of the mounting plate is also provided with a plurality of first upper mold limiting posts 24 extending in the vertical direction. The plurality of first upper mold limiting posts 24 are respectively located on opposite sides of the mold core in the first horizontal direction. The lower mold frame 1 includes a base plate 12 and a plurality of first lower mold limiting posts 25. The support seat 11 is located in the middle of the base plate 12. The plurality of first lower mold limiting posts 25 form a plurality of first mating groups. The plurality of mating groups are located on opposite sides of the support seat 11 in the first horizontal direction. Each first mating group includes two first lower mold limiting posts 25 spaced apart and of different heights. Each first mating group can move in the second horizontal direction so that the plurality of first lower mold limiting posts 25 of the same height abut against the plurality of first upper mold limiting posts 24 of the corresponding upper mold 23 located in the middle. In this embodiment, the multiple first upper mold limiting posts 24 are of the same size, and the two first lower mold limiting posts 25 in each first mating group are of different heights, so as to adapt to the two upper molds 23. At this time, when switching the upper molds 23, the multiple first mating groups should also be adjusted so as to match the corresponding mold closing height after contact.

[0079] It should be understood that during multi-cavity production, the arrangement of the multiple upper dies 23 is not restricted. For example, the upper dies 23 in two modules may be of different models, while the two upper dies 23 in a single module may be of the same model and correspond to the same product. If the two modules correspond to two different products, it is necessary to ensure that the products on the two flow-through tooling a in a single incoming material are identical. Alternatively, the two upper dies 23 in each module may be of different models. In this case, the products on the two flow-through tooling a during incoming material processing are not identical, and the dual-cavity process produces two different products.

[0080] Based on the arrangement of multiple upper molds 23, in order to accommodate different mold closing heights of the upper molds 23, in one embodiment, please refer to... Figure 4 and Figure 7The top plate 21 is provided with a plurality of second upper mold limiting posts 31, which are respectively disposed on opposite sides of the movable plate 22 in the first horizontal direction. The plurality of second upper mold limiting posts 31 are for the entire module, rather than for a single upper mold 23, in view of the compact layout and limited space when there are multiple upper molds 23. The lower mold frame 1 includes a base plate 12 and a plurality of second lower mold limiting posts 32. The support seat 11 is disposed in the middle of the base plate 12. The plurality of second lower mold limiting posts 32 form a plurality of second mating groups, which are disposed on opposite sides of the support seat 11 in the first horizontal direction. Each second mating group includes two second lower mold limiting posts 32 that are spaced apart and have different heights. Each second mating group can move along the second horizontal direction so that the plurality of second lower mold limiting posts 32 of the same height abut against the plurality of second upper mold limiting posts 31. The present invention does not limit the driving method of the second lower mold limiting post 32. The driving form can be set separately for each second mating group, or every two second mating groups can be driven synchronously through a sliding block with a certain length.

[0081] To ensure that the flow tool a can be positioned and engaged with the support base 11, in one embodiment, the support base 11 is provided with two spaced-apart positioning pins to engage with positioning holes on the flow tool a. Preferably, the two positioning pins are positioned diagonally opposite the flow tool a, thereby achieving horizontal and vertical limiting on the horizontal plane and preventing the flow tool a from shaking. In another embodiment, the support base 11 is provided with two spaced-apart proximity switches to jointly detect the position of the flow tool a. When both proximity switches detect the flow tool a, it indicates that the flow tool a is aligned correctly, thus preventing product scrap caused by misalignment of the flow tool a during mold closing. In other embodiments, the support base 11 is provided with a first reader to read the label information on the flow tool a. Uploading the label information to the control system can determine whether the current flow tool a matches the current upper mold 23, thereby ensuring stability.

[0082] In this embodiment, a positioning pin, a proximity switch, and a first reader are provided simultaneously, so that each component is reasonably distributed on the upper surface of the support 11, so that they do not interfere with each other while realizing their respective functions.

[0083] Furthermore, in order to achieve intelligent control of the entire production line, the pressure processing production line 1000 also includes an MES control system, which is electrically connected to each mechanism, can receive and analyze data, and can optimize production based on the results.

[0084] Based on the above structural form, please refer to Figures 8 to 9 This invention proposes a control method for a pressure processing production line 1000, which specifically includes the following steps:

[0085] S10: Obtain the label information of the flow tooling a located at the loading station b, and confirm the target upper mold 23 based on the label information;

[0086] It should be noted that during the initial production phase, products are laser-etched with identification codes, which can be barcodes or QR codes. A barcode scanner can read the product information by scanning this code. All product information is pre-uploaded to the MES system. However, during processing and transfer, the product is mounted on a distribution fixture (a). At this time, its original identification code is obscured due to its association with the distribution fixture (a), making it unreadable. Therefore, during the initial production phase, the product identification code information is pre-transmitted to an RFID reader by a barcode scanner. The RFID reader writes this information into the corresponding code carrier and embeds it into the distribution fixture (a) carrying the corresponding product. Thus, as the distribution fixture (a) carries the product through various processes, the relevant information of the product on the distribution fixture (a) can be obtained by reading the code carrier on the distribution fixture (a) using a reader.

[0087] Specifically, the label information of the flow tooling a is obtained by a reader or detection component 400 set at the loading station b and uploaded to the MES system. The system will simultaneously verify whether the product matches the flow tooling a. If they do not match, an error will be reported; if they match, the system will query the corresponding mold model based on the product information to confirm the target mold. It should be understood that the specific models of the product and the flow tooling a also have physical error prevention measures, such as geometric settings, so that only specific combinations and specific mating directions can complete the mating. The advantage of the MES system is that it can effectively identify products through label information even when it is inconvenient to design physical error prevention structures or when the physical error prevention mating is not obvious.

[0088] S20: If the position of the target upper mold 23 corresponds to the support seat 11, control the conveying device 200 to transfer the flow tooling a with the product to be processed to the processing station c and place it on the support seat 11;

[0089] It should be understood that, since the position of the upper mold 23 in the pressure processing equipment 100 can be adjusted by controlling the movement of the movable plate 22, the position of each upper mold 23 is not fixed. When the target upper mold 23 is confirmed, the corresponding support seat 11 is still idle when the current target upper mold 23 is obtained. The target upper mold 23 should be moved to a position directly opposite the support seat 11 before the flow tooling a to be processed flows into the support seat 11, so as to wait for the subsequent mold closing processing.

[0090] S30: Obtain the position information of the flow tool a at each workstation;

[0091] It should be understood that, since there is a certain interval between the feeding times of two adjacent flow tool a, and a stop component 300 may be set on the flow path of the conveying device 200, the position of the flow tool a at each station is uncertain.

[0092] For example, the position of the flow tool a at each station can be obtained through multiple of the aforementioned detection elements 400.

[0093] S40: When the position information of the flow tool a at each station meets the preset requirements, control the pressure processing equipment 100 to work to process the product;

[0094] It should be understood that, at least, the part corresponding to the bearing seat 11 within the processing station c should have a flow tool a, and there should be no other flow tool a within the coverage area of ​​the idle upper mold 23 in order to control the pressure processing equipment 100 to carry out production.

[0095] When a detection element 400 is set, the presence or absence of the flow tool a in each station can be confirmed through multiple detection elements 400.

[0096] S50: When the pressure processing equipment 100 finishes processing, the conveying device 200 is controlled to transfer the flow tool a with the processed product to the discharge station d.

[0097] In the technical solution of this invention, the pressure processing production line 1000 has multiple upper dies 23 with switchable positions. Before processing, the label information of the flow tooling a at the loading station b is obtained, thereby determining that the upper die 23 corresponding to the current incoming product is the target upper die 23. When the position of the target upper die 23 corresponds to the carrier seat 11, the control conveying device 200 transfers the flow tooling a to the processing station c and cooperates with the carrier seat 11 to wait for processing. The position information of the flow tooling a at each station is obtained to ensure safety during mold closing, avoiding damage to the processed product that is about to be discharged or has not yet been placed on the carrier seat 11 when the idle upper die 23 is not above the carrier seat 11 during mold closing, causing product scrap. The entire processing process has a high degree of automation, integrating automatic loading, processing and discharge, and good processing stability. Stable production at the processing station c is ensured by reasonably controlling the working timing of each component.

[0098] Furthermore, since the position of each upper die 23 in the pressure processing equipment 100 is not fixed, the processed product needs to be continuously adjusted according to the actual incoming material. Therefore, after step S10, the following is also included:

[0099] S20': If the position of the target upper mold 23 does not match the support seat 11;

[0100] This means that the product currently being processed or just completed is inconsistent with the product on the flow tooling a detected at the loading station b. At this time, the target upper mold 23 is located on the side of the support seat 11, and the position of the upper mold 23 needs to be changed to achieve subsequent mold closing production.

[0101] S21: Obtain the processing progress information of the pressure processing equipment 100;

[0102] It should be understood that the material receiving and mold closing processing cycles are not synchronized. During the mold closing process of the upper mold frame 2 and the lower mold frame 1, the material feeding station b can receive new materials, and there may also be materials waiting. Therefore, it is necessary to select the appropriate time to replace the upper mold 23 according to the timing processing progress of the pressure equipment.

[0103] S22: Based on the processing progress information, control the movable plate 22 to move to adjust the position of the target upper mold 23, or control the movable plate 22 to move to adjust the position of the target upper mold 23 after the pressure processing equipment 100 has finished processing.

[0104] Specifically, when the pressure processing equipment 100 is in the working process of not closing the mold or just opening the mold, it can only control the movement of the movable plate 22 to change the mold immediately. When the pressure processing equipment 100 is in the process of pressure processing or holding pressure, it is necessary to wait until the upper mold frame 2 and the lower mold frame 1 are separated before controlling the movement of the movable plate 22 to change the mold.

[0105] Furthermore, step S40 includes:

[0106] S41: When there is a flow tool a on the carrier 11, obtain the actual label information of the flow tool a located on the carrier 11;

[0107] S42: When the actual label information matches the target upper mold 23, control the pressure processing equipment 100 to work to process the product.

[0108] In the embodiments of the present invention, the labels of each of the flow-through tooling a are inspected twice. This is to prevent the product from being picked up and inspected by the operator after the first inspection, and then misplaced after being put back, causing a mismatch between the product and the currently adjusted upper mold 23 during actual mold closing, resulting in processing scrap. Therefore, after the flow-through tooling a is placed on the support 11, a second information confirmation is required. Mold closing is only performed when the support 11 has the flow-through tooling a and the flow-through tooling a matches the upper mold 23 directly above it, thus improving safety performance.

[0109] Furthermore, in step S30:

[0110] S31: Obtain the inspection information of multiple inspection pieces 400 to confirm the position information of the flow tooling at each station;

[0111] The detection information includes whether there is a flow tool a or not. In this case, the detection component 400 functions only as a sensor, which can detect the product passing by and send a feedback signal to the control system.

[0112] At this point, in step S40, when the detection information of the first detection piece, the third detection piece, and the detection piece 400 are all without flow tool a, and the detection information of the second detection piece is with flow tool a, the preset requirement is met.

[0113] The mold closing process of the pressure processing equipment 100 is not directly related to the feeding and discharging processes, but is affected by the distribution of the flow tooling a at each station. The controlled upper mold 23 has two positions, one of which is in...

[0114] The second detection component indicates the presence of a flow tool a, meaning that the support 11 is equipped with a flow tool a for processing. The first detection component indicates the absence of a flow tool a, meaning that there is only one flow tool a at the processing station c. Even if the idle upper mold 23 is located on the side of the support 11 facing the feeding direction, it will not cause damage to other products to be processed when the mold is closed.

[0115] Furthermore, when setting two stop components 300 to stop the flow of the tooling a, the opening and closing control of the two stop components 300 can be controlled according to the detection results of the corresponding detection elements 400, or according to the production cycle. The opening and closing control logic of the two stop components 300 can be the same or different. For example, in one embodiment, two of the multiple detection elements 400 are respectively located on opposite sides of the first stop component and electrically connected to it. Taking the first stop component as an example, at this time, the two detection elements 400 are respectively located at the loading station b and the processing station c. Correspondingly, in step S20:

[0116] Obtain the detection information of the two corresponding detection components 400;

[0117] The corresponding stop assembly 300 is opened and closed according to the detection information, so that the flow tool a is transferred by the conveying device 200 to the processing station c or stays at the loading station b.

[0118] It should be understood that when the detection unit 400 at the feeding station b detects a flow tool a, it controls the first stop assembly to open. At this time, the flow tool a can flow into the processing station c under the drive of the synchronous belt 210. When the detection unit 400 at the finishing station detects a flow tool a, it means that the flow tool a has passed the first blocking assembly. At this time, the first blocking assembly can be controlled to close to block the subsequent flow tool a.

[0119] It should be understood that, based on this embodiment, two detection elements 400 are provided at the processing station c, respectively located on both sides of the processing station c along the first horizontal direction.

[0120] Furthermore, in step S50:

[0121] Obtain the duration during which the corresponding stop component 300 remains closed;

[0122] When the maintenance time meets the preset duration, the stop component 300 is controlled to open so that the flow tool a with the processed product can be conveyed by the conveying device 200 to the discharge station d.

[0123] It should be understood that the stop component 300 corresponds to the flow tool a carrying the product out after processing. During material processing, the mold closing time and pressure holding time of the same product are determined according to the process design of different products. Therefore, the opening of the second stop component does not require the addition of a detection component 400 for associated detection, but is opened at a set time.

[0124] The second stop assembly corresponding to the third detection piece can be set to face away from the processing station c. When the third detection piece detects a flow tool a, it means that the product after pressing has passed the stop part 310. At this time, the second stop assembly can be controlled to close, thereby preventing the subsequent flow tool a from flowing out.

[0125] It should be noted that the holding time can be longer than the total length of the mold closing time and the pressure holding time, thus having better stability and compatibility with the time consumed when the flow tool a is moved or stuck.

[0126] Furthermore, when the pressure processing equipment 100 performs multi-cavity processing, there are two parallel conveying devices 200 for product transfer. Considering the difference in production cycle time, the front and rear positions of the flow tooling a on the two conveying devices 200 may differ. In this case, in step S40,

[0127] When both of the bearing seats 11 are provided with flow fixtures a, and the label information of the two flow fixtures a matches the current corresponding upper mold 23, the pressure processing equipment 100 is controlled to work to process the product.

[0128] It should be noted that although multiple upper molds 23 are processed simultaneously during multi-cavity production, the closing and opening of multiple upper molds 23 are controlled synchronously by a single drive. Therefore, when a flow tool a is detected on one of the support seats 11, it is necessary to wait for the flow tool a to be in place on the other support seat 11, and for the flow tool a on both support seats 11 to match the upper mold 23 at this time before the pressure processing equipment 100 can be controlled to close the mold.

[0129] Furthermore, based on the multi-cavity production scenario, step S10 includes:

[0130] S11: Obtain the tag information of the two flow tooling a located at the loading station b;

[0131] S12: When the two label information satisfy the preset arrangement;

[0132] S13: Confirm the target module based on the two label information, and take the two upper modules 23 in the target module as the target upper module 23.

[0133] It should be understood that, taking four upper dies 23 as an example, two rows are set along the first horizontal direction, and two upper dies 23 in each row are set along the second horizontal direction. During a single mold closing process, the two upper dies 23 in one module are processed simultaneously. Since there are multiple possible combinations of the arrangement of the four upper dies 23, when processing the double cavity simultaneously, the component needs to check the flow tool a to confirm the target mold when the material arrives. It also needs to ensure that the two flow tool a corresponding to the two bearing seats 11 are arranged in the same way as the upper dies 23 in the module. For example, if the two modules correspond to product A and product B respectively, then when the material arrives, the products on the flow tool a that are processed together must be the same, either both product A or both product B, in order to ensure matching with the two upper dies 23 in the same module. When the two upper dies 23 in each module correspond to product A and product B respectively, the products on the flow tool a that are processed together must be different products, and the arrangement direction also needs to correspond to the upper die 23 in order to perform upper die 23 matching processing.

[0134] Therefore, considering the simplicity of program detection and coordination, it is preferable to have two modules corresponding to product A and product B respectively, that is, two flow tooling units a that are processed synchronously to process the same product.

[0135] Considering that the distribution tool a is always subjected to the force of the synchronous belt 210 during its movement, even if it is stopped at the loading station b by the first stop component, the synchronous belt 210 will not stop running. Therefore, the distribution tool a will always have a certain degree of lateral movement, which is not conducive to the reading of label information. In order to ensure the reliability of information detection, based on the lifting structure 500, step S10 includes:

[0136] S11': Control the lifting platform 520 to move upward to lift one of the flow tool a upward until it is disengaged from the two synchronous belts 210;

[0137] S12': Obtain the tag information of the circulation tool a detected by the reader;

[0138] S13': Control the lifting platform 520 to move downward so that the flow tool a falls back onto the two synchronous belts 210.

[0139] It should be understood that when the stop assembly 300 is set, the lifting platform 520 should be set close to the stop assembly 300. The corresponding flow tool a will be blocked by the stop assembly 300 and thus unable to continue moving, which facilitates the corresponding cooperation of the lifting platform 520 without requiring the conveying device 200 to stop. The lifting structure 500 can also share a detection element 400 with the stop assembly 300 for detection.

[0140] For example, the first stop assembly is controlled to open and close via its two detectors 400. When the detector 400 in the corresponding material inlet direction detects the presence of a flow tool a for the first time, it controls the lifting platform 520 to rise. At this time, the first stop assembly remains closed. When the lifting platform 520 lifts the flow tool a and disengages it from the synchronous belt 210, the detection result of the detector 400 changes to "no flow tool a". After the first reader completes its information detection, the detection result is uploaded to the control system. At this time, the control system issues a command to control the lifting platform 520 to fall back. When the detector 400 detects the presence of a flow tool a for the second time, after the control system analyzes and matches the product information, it controls the first stop assembly to open, allowing the flow tool a to pass through.

[0141] Based on the above embodiments, the feeding interval between two adjacent flow tool a should be reasonably controlled to avoid material accumulation.

[0142] Furthermore, in order to place the flow tool a on the support seat 11 while also accommodating the feeding and discharging processes, in one embodiment, both synchronous belts 210 can move vertically.

[0143] At this time, in step S20, the two synchronous belts 210 are controlled to fall synchronously until the two synchronous belts 210 are lower than the upper end of the support seat 11, so that the flow tool a with the product to be processed is placed on the support seat 11.

[0144] At this time, in step S40, the two synchronous belts 210 are controlled to move upward synchronously so as to drive the flow tool a with the processed product to detach from the carrier 11 and be able to move along with the two synchronous belts 210.

[0145] By controlling the distance of the synchronous belt 210 rising and falling, the flow tool a can be controlled to stay on the carrier 11 or move with the synchronous belt 210.

[0146] In single-cavity processing, in the first embodiment, the pressure processing production line 1000 has a loading station b, a processing station c, and a discharging station d spaced apart along a first direction. The pressure processing equipment 100 is set corresponding to the processing station c. The first stop assembly and the second stop assembly are respectively located on the side of the processing station c corresponding to the loading station b and the discharging station d. Seven detection pieces 400 are set for each conveying device 200, which are detection pieces A, B, C, D, E, F, and G along the conveying direction. Detector A corresponds to the feeding end of the loading station b. Detectors B and C are respectively located on the front and rear sides of the first stop assembly and are electrically connected to the first stop assembly. Detector D is located at the processing station c and is set corresponding to the bearing seat 11. Detector E is located on the side of the second stop assembly facing the discharge station d and is electrically connected to it. Detector G corresponds to the discharge end of the discharge station d. Detector F is located between detectors E and G and can avoid the empty upper mold 23 when the pressure processing equipment 100 closes the mold. The specific process is as follows:

[0147] The flow tool A is fed onto the synchronous belt 210 via an external device and detected by the detection component A. As the synchronous belt rotates, the detection component B detects the presence of the flow tool A, which is blocked by the first stop assembly. The lifting platform 520 moves upward, lifting the flow tool A and acquiring its tag information, which is then uploaded to the control system. The control system confirms the target upper mold 23 based on the tag information, and the lifting platform 520 falls back down. The detection component B detects the presence of the flow tool A again and controls the stop part 310 of the first stop assembly to open. When the flow tool A passes the detection component C, the detection component C provides feedback and controls the stop part 310 of the first stop assembly to close, thereby blocking the flow tool B behind it. The detection component D detects the presence of the flow tool A, indicating that the flow tool A has reached the carrier 11. At this time, the second reader on the carrier 11 reads the tag of the flow tool A. The system performs secondary information confirmation. When no flow tooling a is detected at any of the three inspection points (C, E, and F), the pressure processing equipment 100 is controlled to close the mold. After a set time is met, the mold opens, the product processing is completed, and the synchronous belt 210 lifts up, moving the flow tooling A. At this time, the second stop assembly is controlled to block. When the second stop part 310 has been closed for the required duration after the previous opening, the stop part 310 of the second stop assembly is controlled to open. When inspection point E detects the flow tooling A, the stop part 310 of the second stop assembly is controlled to close, and the flow continues. The flow tooling A passes inspection point F. When inspection point G detects the flow tooling A, an external robot or other transfer equipment can remove the flow tooling A and the processed product it carries, completing the turnover of a single product.

[0148] In the dual-cavity processing, compared with the first embodiment, the second embodiment sets up 4 upper molds 23 and 2 support seats 11. The two upper molds 23 in the same module are the same. In the specific process, each conveying device 200 corresponds to 7 detection pieces 400. When both detection pieces D detect the presence of flow tooling a, it means that the two flow tooling A have reached the support seat 11. At this time, the second readers on the two support seats 11 read the tag information of the two flow tooling A respectively and perform secondary information confirmation. When no flow tooling a is detected at the two detection pieces C, two detection pieces E, and two detection pieces F, the pressure processing equipment 100 is controlled to close the mold and perform simultaneous processing of dual cavities.

[0149] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A control method for a pressure processing production line, characterized in that, The pressure processing production line has a loading station, a processing station, and a discharging station spaced apart along a first direction. The pressure processing production line includes pressure processing equipment and a conveying device. The pressure processing equipment is arranged corresponding to the processing station. The pressure processing equipment includes an upper mold frame and a lower mold frame that are vertically opposite and movable relative to each other. The lower mold frame is provided with a support seat for placing flow fixtures containing parts to be processed. The upper mold frame includes a movable plate arranged along a first horizontal direction. At least two upper molds of different models are mounted on the movable plate. The conveying device is used to transport each flow fixture sequentially through the loading station, the processing station, and the discharging station. The pressure processing production line includes two stop assemblies and multiple detection components. The two stop assemblies... The device includes a first stop assembly and a second stop assembly, respectively located on the sides of the processing station corresponding to the loading station and the unloading station. Multiple detection components include a first detection component, a second detection component, a third detection component, and a fourth detection component. The fourth detection component is located at the unloading station and can avoid the empty upper mold when the pressure processing equipment closes the mold. The third detection component is located on the side of the second stop assembly facing away from the processing station, and controls the second stop assembly to close based on the result of the third detection component. The second detection component is located at the processing station and is positioned corresponding to the bearing seat. The first detection component is located on the side of the first stop assembly facing the processing station, and controls the first stop assembly to close based on the result of the first detection component. The control method for the pressure processing production line includes the following steps: Obtain the label information of the flow tooling located at the loading station, and confirm the target upper mold based on the label information; If the position of the target upper mold corresponds to the carrier, control the conveying device to transfer the flow tooling with the product to be processed to the processing station and place it on the carrier; Obtain the location information of the flow tooling at each workstation; When the position information of the flow tooling at each workstation meets the preset requirements, the pressure processing equipment is controlled to work to process the product. When the pressure processing equipment finishes processing, the control device will transfer the flow tooling containing the processed product to the discharge station; The step of obtaining the location information of the flow tooling at each workstation includes: The detection information of multiple test pieces is obtained to confirm the location information of the flow tooling at each station, wherein the detection information includes whether there is flow tooling or not. In the step of "controlling the pressure processing equipment to process products when the position information of the flow tooling at each workstation meets the preset requirements",... When the detection information of the first detection piece, the third detection piece, and the fourth detection piece are all "no flow tooling", and the detection information of the second detection piece is "with flow tooling", the preset requirements are met.

2. The method of claim 1, wherein, The step of "obtaining the label information of the flow tooling at the loading station and confirming the target upper mold based on the label information" further includes: If the position of the target upper mold does not match the support seat; Obtain processing progress information from pressure processing equipment; Based on the processing progress information, the movable plate is controlled to adjust the position of the target upper mold.

3. The method of claim 1, wherein, In the step of "controlling the pressure processing equipment to process products when the position information of the flow tooling at each workstation meets the preset requirements",... When there is a flow tooling on the carrier, obtain the actual label information of the flow tooling located on the carrier; When the actual label information matches the target upper mold, the pressure processing equipment is controlled to work to process the product.

4. The method of claim 1, wherein In the step of "when the pressure processing equipment completes processing, control the conveying device to transfer the flow tooling containing the processed product to the discharge station": Obtain the duration for which the second stop component remains closed; When the maintenance time meets the preset duration, the second stop component is controlled to open so that the conveying device can transport the processed product to the discharge station.

5. The method of claim 1, wherein, The movable plate is provided with two modules spaced apart along a first horizontal direction, each module including two upper molds spaced apart along a second horizontal direction, and two corresponding support seats are provided; In the step of "controlling the pressure processing equipment to process products when the position information of the flow tooling at each workstation meets the preset requirements",... When both of the aforementioned support seats are equipped with flow fixtures, and the label information of both flow fixtures matches the current corresponding upper mold, the pressure processing equipment is controlled to work to process the product.

6. The method of claim 5, wherein, The upper molds in the two modules are of different models, or the two upper molds in each module are of different models; The step of "obtaining the label information of the flow tooling at the loading station and confirming the target upper mold based on the label information" includes: Obtain the label information of the two flow fixtures located at the loading station; When the two label information meet the preset arrangement; The target module is identified based on the two label information, and the two upper modules in the target module are taken as the target upper modules.

7. The control method for a pressure processing production line as described in claim 1, characterized in that, The conveying device includes two synchronous belts spaced apart on both sides of the bearing seat along the second horizontal direction. The pressure processing production line also includes a lifting structure located at the loading station. The lifting structure includes a lifting platform located between the two synchronous belts. The lifting platform is movable in the vertical direction, and a reader is provided on the upper surface of the lifting platform. The step of "obtaining the label information of the flow tooling at the loading station and confirming the target upper mold based on the label information" includes: Control the lifting platform to move upwards to lift one of the flow tools upwards until it is disengaged from the two synchronous belts; Obtain the tag information of the circulation tooling detected by the reader; The lifting platform is controlled to move downward so that the flow tooling falls back onto the two synchronous belts.

8. The control method for a pressure processing production line as described in claim 1, characterized in that, The conveying device includes two synchronous belts spaced apart on both sides of the bearing seat along a second horizontal direction, and both synchronous belts can move vertically. In the step of "if the position of the target upper mold corresponds to the carrier, control the conveying device to transfer the flow tooling with the product to be processed to the processing station and place it on the carrier", The two timing belts are controlled to fall synchronously until they are below the upper end of the support, so that the flow tooling with the product to be processed is placed on the support. In the step of "when the pressure processing equipment completes processing, control the conveying device to transfer the flow tooling containing the processed product to the discharge station", The two timing belts are controlled to move upward synchronously to drive the flow tooling with the processed product to detach from the carrier, and can be moved along with the two timing belts.

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