CN115383969A - Automatic feeding and discharging injection molding process - Google Patents

Abstract

The invention provides an automatic feeding and discharging injection molding process, which comprises the following steps: full-automatic confession material receiving machine ascends to export one by one and goes up the charging tray, and first manipulator takes out the product in going up the charging tray and moves to the visual detection ware, targets in place and carries out blue light scanning by the visual detection ware to the product and shoots, judges whether the product has incomplete or the bad condition of large tracts of land: the positioning platform is vacant, and the first manipulator transfers the product to the positioning platform for secondary accurate positioning; the second mechanical arm clamps and transfers the product to an injection molding machine for the injection molding process of the product; the second manipulator is put the shaping product and is transferred to sweeping yard tool of sweeping yard carving machine, sweeps yard carving machine and scans the discernment product sign indicating number to the shaping product earlier, reads product information and feeds back to the server, binds former product information and the new information of moulding plastics together and forms new two-dimensional code information again, and radium carving two-dimensional code figure on the shaping product is gone up to rethread laser, scans new two-dimensional code figure again at last and carries out the information feedback and gathers.

Description

An automatic loading and unloading injection molding process

technical field

The invention belongs to the technical field of machinery, and relates to an injection molding line body, in particular to an automatic loading and unloading injection molding process.

Background technique

In the field of injection molding, there are many operation forms of loading and unloading. At present, in the 3C industry, the form of injection molding is still in the semi-automatic form, mainly in the process of injection molding and loading and unloading, feeding and receiving, and laser engraving product QR codes to realize information binding, etc., and it is difficult to achieve mergers. Even if it is merged, it is difficult to achieve a high utilization rate. Therefore, for the automatic injection molding loading and unloading line body, further research and development and innovative attempts are needed.

For example, the Chinese patent literature once disclosed a preparation process of a PCB injection molded body [Chinese Patent No.: CN202110623461.4]. The present invention discloses a preparation process of a PCB injection molded body, which includes the following steps to obtain /or PCB boards with solder joints; using OSP process to process the PCB boards; injecting the PCB boards to form injection molded bodies on the PCB boards; engraving lines on the injection molded bodies with radium; removing the end face of the PCB board head A protective film is used to expose the area to be electroplated on the end face of the PCB head; electroless plating is performed on the injection molded body and the end face of the head end of the PCB. The CNC machining process is canceled and there is no need to set up auxiliary structures that need to be removed in subsequent steps on the PCB, which effectively reduces the cost of raw materials and process costs, and improves the yield rate of the PCB injection molded body, so that the structural parts of the PCB injection molded body The manufacturing cost is reduced; it solves the limitation of function realization in the design of consumer electronic products, and can greatly reduce the cost of this type of product.

Although the above-mentioned technical scheme adds the laser engraving process into the injection molding line, it still cannot carry out reasonable procedural control of loading and unloading, injection molding, laser engraving, scanning, etc., and there are still intermittent or intermittent stagnation between different stations, which affects production efficiency. In addition, in the above-mentioned technical solution, the product cannot realize the query function of tracing the source.

Contents of the invention

The purpose of the present invention is to solve the above-mentioned problems in the existing technology, and propose a program that integrates the injection molding process with automatic loading and unloading, code scanning and coding, and product detection, and achieves high utilization rate and equipment utilization rate Automatic loading and unloading injection molding process.

The purpose of the present invention can be achieved through the following technical solutions: an automatic loading and unloading injection molding process, the equipment used includes a fully automatic feeding and receiving machine, a visual detector, a positioning platform, an injection molding machine, a code scanning engraving machine, a first A manipulator, a second manipulator, an induction system and a server, the automatic loading and unloading injection molding process includes the following steps:

1) The server controls the fully automatic feeding and receiving machine to raise and output the feeding tray one by one. The server controls the first manipulator to take out the products in the feeding tray and transfer them to the visual detector. The sensor system senses the position and the visual detector detects the product Carry out blue-ray scanning and take pictures to determine whether the product is incomplete or has a large area of defects:

a. If the product is defective, it will be directly discharged to the waste position;

b. If the product is good, go to step 2);

2) The sensing system senses the space on the positioning platform, and the server controls the first manipulator to transfer the product to the positioning platform for secondary precise positioning;

3) The sensing system senses that the position on the positioning platform is full, and the server controls the second manipulator to grip the product and transfer it to the injection molding machine for product injection molding process;

4) The server controls the second manipulator to put the formed product on the scanning fixture of the scanning code engraving machine for transfer. The sensing system senses that the formed product is in place, and the server controls the scanning code engraving machine to scan and identify the formed product first. code, read the product information and feed it back to the server, then bind the original product information with the new injection information to form a new two-dimensional code information, then use laser to engrave the two-dimensional code pattern on the molded product, and finally scan the new one again QR code graphics for information feedback summary;

5) After the server receives the laser engraving completion signal, it controls the first manipulator to take out the completed laser engraving product and transfer it to the receiving tray in the automatic feeding and receiving machine, and the server controls the automatic feeding and receiving machine to descend successively Stack bins.

In the above-mentioned automatic loading and unloading injection molding process, it is characterized in that at least an MIS information management program, a PLC control program, a manipulator program, a visual inspection program, and a sensing signal receiving program are set in the server; the sensing system includes at least an infrared sensor and a contact sensor. device.

In the above-mentioned automatic loading and unloading injection molding process, it is characterized in that the AGV transport vehicle is controlled by the PLC control program to move the stacked full-loaded product loading tray to the material inlet of the fully automatic feeding and receiving machine; through the PLC control program Control the AGV transport vehicle to move to the receiving port of the automatic feeding and receiving machine to receive the stacked receiving trays, and then the PLC control program controls the AGV transport vehicle to leave and go to the receiving dock.

In the above-mentioned automatic loading and unloading injection molding process, it is characterized in that when the sensing system senses that the feeding tray in the automatic feeding and receiving machine is empty and sends a signal to the server, the server controls the AGV transport vehicle to replenish the feeding tray; The sensing system senses that the receiving tray in the fully automatic feeding and receiving machine is full and sends a signal to the server, and the server controls the AGV transport vehicle to take away the receiving tray.

In the above-mentioned automatic loading and unloading injection molding process, it is characterized in that, in step 1), the product defect specifically refers to the existence of missing corners and/or deformation of the product; the large-area defect of the product specifically refers to the unqualified surface flatness of the product exceeding the set area.

In the above-mentioned automatic loading and unloading injection molding process, it is characterized in that in step 2), the positioning platform uses a multi-point insertion positioning method of positioning pins to make the product form a secondary precise positioning on the positioning platform to ensure the position degree.

In the above-mentioned automatic loading and unloading injection molding process, it is characterized in that, in step 3), the server controls the second manipulator to take out the molded product in the injection molding machine by using the fetching jaw, and then turn over and switch the discharging jaw to remove the unmolded product. The product is put into the injection mold.

In the above-mentioned automatic loading and unloading injection molding process, in step 3), the injection mold is scanned and photographed by blue light through the position detector inside the injection molding machine. If there is no product in the injection mold, a signal is sent to the server to control the second manipulator to put the product , and then use the position detector again to scan and take photos of the injection mold with blue light to judge whether the product is placed in place in the injection mold, until the product is placed accurately, and the server controls the second manipulator to leave.

In the above-mentioned automatic loading and unloading injection molding process, in step 4), the new injection molding information is the source of the product, which is accurate to the injection molding equipment information and production time.

In the above-mentioned automatic loading and unloading injection molding process, in step 1) or 5), the first manipulator uses the retrieving jaw to take out the laser-engraved product and put it into the receiving tray in the automatic feeding and receiving machine ; Then turn over and switch the discharging jaws to clamp the uninjected products in the automatic feeding and receiving machine, and put them into the visual detector.

Compared with the prior art, the automatic loading and unloading injection molding process has the following beneficial effects:

1. The present invention includes two sets of systems, one is a mechanical structure coordination system; the other is a product information collection software information coordination system; the mechanical system cooperates with the product information collection software information coordination system. From product feeding to injection molding, and finally to product receiving, the whole process is automated.

2. The invention innovates the automatic loading and unloading procedures of the manufacturing process and equipment, changes the disadvantages of a single process in the injection molding process, and realizes the parallelization of the whole process. The invention can reduce the manpower demand during production, reduce personnel operation errors, improve production efficiency, reduce the production quantity of defective products, improve the utilization rate of injection molding machines, thereby reducing production costs.

3. The present invention fully combines the Internet of Things and Internet technology, and the PLC control and the manipulator are effectively combined through the digital IO module to realize a fully automatic injection molding process. The traditional single injection molding loading and unloading, laser engraving two-dimensional code information, uninterrupted material supply and each step of the detection system are effectively combined to form a fully automatic system, which avoids the disadvantages of single station production and saves A lot of manpower and material resources.

4. The present invention forms a system process through the human operation in the traditional business through information means, and realizes the timely transmission of data to the MIS system, real-time monitoring of production, timely monitoring of production, production abnormal information can be obtained at any time, and timely feedback can be done. Emergency treatment. It also realizes that the corresponding production unit can be found for each product, and the effect of tracing the source can be achieved.

Description of drawings

Figure 1 is a schematic diagram of the line body of the automatic loading and unloading injection molding process.

Fig. 2 is a schematic flow chart of the automatic loading and unloading injection molding process.

In the figure, 1. Fully automatic feeding and receiving machine; 2. First manipulator; 3. Visual detector; 4. Positioning platform; 5. Second manipulator; 6. Injection molding machine; 7. Scanning and engraving machine.

Detailed ways

The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

Embodiment one

As shown in Figure 1 and Figure 2, the equipment used in this automatic loading and unloading injection molding process includes a fully automatic feeding and receiving machine 1, a visual detector 3, a positioning platform 4, an injection molding machine 6, a code scanning engraving machine 7, a A manipulator 2, a second manipulator 5, a sensing system and a server, the automatic loading and unloading injection molding process includes the following steps:

1) The server controls the fully automatic feeding and receiving machine 1 to raise and output the feeding tray one by one. The server controls the first manipulator 2 to take out the products in the feeding tray and transfer them to the visual detector 3. The sensing system senses the position and is detected by the vision Device 3 scans and takes pictures of the product with blue light to determine whether the product is defective or has a large area of defects:

a. If the product is defective, it will be directly discharged to the waste material position; specifically, the defective product will be thrown out through the first manipulator 2.

b. If the product is good, go to step 2);

2) The sensing system senses the space on the positioning platform 4, and the server controls the first manipulator 2 to transfer the product to the positioning platform 4 for secondary precise positioning;

3) The sensing system senses that the position on the positioning platform 4 is full, and the server controls the second manipulator 5 to grip the product and transfer it to the injection molding machine 6 for the product injection molding process;

4), the server controls the second manipulator 5 to put the formed product on the code scanning fixture of the code scanning engraving machine 7 for transfer, the sensing system senses that the formed product is in place, and the server controls the code scanning engraving machine 7 to first carry out the forming product Scan and identify the product code, read the product information and feed it back to the server, then bind the original product information with the new injection molding information to form a new two-dimensional code information, and then engrave the two-dimensional code pattern on the molded product by laser, and finally Scan the new QR code graphic again for information feedback summary;

5) After the server receives the laser engraving completion signal, it controls the first manipulator 2 to take out the laser engraved products and transfer them to the receiving tray in the automatic feeding and receiving machine 1, and the server controls the automatic feeding and receiving machine 1. Lower stacked receiving trays one by one.

The fully automatic feeding machine transplants the entire tray to the loading and unloading position through the traverse module. The feeding system is formed by a fully automatic feeding machine, which uses automated mechanical structural parts to realize fully automatic uninterrupted feeding operations. The visual detector 3 is specifically a CCD camera for detection. Adjust multiple products to a fixed XY direction size through the positioning mechanism. Injection molding machine 6 is the core, and all loading and unloading system simplex stations CT must be controlled within the injection molding system CT, so as to achieve the highest effective utilization rate of injection molding machine 6.

The entire induction system is controlled by the control program of the server, and the product transfer process information is sensed through the induction system, and the induction information is transmitted to the server, and the automatic feeding and receiving machine 1, visual detector 3, injection molding machine 6, and code scanning are controlled through the server The engraving machine 7, the first manipulator 2, the second manipulator 5, etc. perform corresponding execution actions, and the sensing, electric control, and execution are organically combined and cooperate with each other to form a complete automation line.

Specifically, at least an MIS information management program, a PLC control program, a manipulator program, a visual inspection program, and a sensing signal receiving program are set in the server; the sensing system includes at least an infrared sensor and a contact sensor.

The entire injection molding line, the cooperation between the positioning of the product and the movement of the manipulator, and the execution of each process equipment require the construction of infrared sensing, contact sensing and other sensing systems. At the same time, the signal is obtained through the induction signal receiving program, so that the PLC control program installation and setting process is controlled. The PLC control program is mainly reflected in two modules, one is the automatic feeding control, through the PLC control program to control the lifting and shifting of the feeding unit in the automatic feeding and receiving machine 1; the other is through the PLC control program to control The code scanning and engraving machine 7 performs program scanning and engraving operations. MIS information management program is used to record and display relevant information of products.

In step 1), product defects specifically refer to missing corners and/or deformations of the product; large-area defects of the product specifically refer to the unqualified surface flatness of the product exceeding the set area.

In step 2), the positioning platform 4 adopts the multi-point insertion positioning method of the positioning pins, so that the product can form a secondary precise positioning on the positioning platform 4 to ensure the position accuracy.

In step 3), the server controls the second manipulator 5 to first take out the molded product from the injection molding machine 6 with the feeding jaw, and then turn over and switch the discharging jaw to put the uninjected product into the injection mold. Thus, the second manipulator 5 switches modes by turning over 180° at the same station to realize the process of product replacement in the injection molding machine 6, thereby reducing working time, improving work efficiency, and making the overall process compact.

In step 4), the new injection molding information is the source of the product, which is accurate to the injection molding equipment information and production time. Through laser engraving the new two-dimensional code to achieve the function of tracing the source, so as to facilitate access to the source of the product.

In step 1) or 5), the first manipulator 2 uses the retrieving jaws to take out the laser-carved products and put them into the receiving tray in the automatic feeding and receiving machine 1; then turn over and switch the discharging jaws Clamp the uninjected products in the fully automatic feeding and receiving machine 1 and put them into the visual detector 3 .

Thus, the first manipulator 2 switches modes by turning over 180° at the same station to realize two operation procedures, thereby reducing working time, improving work efficiency, and making the overall process compact.

Compared with the prior art, the automatic loading and unloading injection molding process has the following beneficial effects:

1. The present invention includes two sets of systems, one is a mechanical structure coordination system; the other is a product information collection software information coordination system; the mechanical system cooperates with the product information collection software information coordination system. From product feeding to injection molding, and finally to product receiving, the whole process is automated.

2. The invention innovates the automatic loading and unloading procedures of the manufacturing process and equipment, changes the disadvantages of a single process in the injection molding process, and realizes the parallelization of the whole process. The present invention can reduce the manpower demand during production; can reduce personnel operation errors and improve production efficiency; can reduce the production quantity of defective products and improve the utilization rate of the injection molding machine 6, thereby reducing production costs.

3. The present invention fully combines the Internet of Things and Internet technology, and the PLC control and the manipulator are effectively combined through the digital IO module to realize a fully automatic injection molding process. The traditional single injection molding loading and unloading, laser engraving two-dimensional code information, uninterrupted material supply and each step of the detection system are effectively combined to form a fully automatic system, which avoids the disadvantages of single station production and saves A lot of manpower and material resources.

4. The present invention forms a system process through the human operation in the traditional business through information means, and realizes the timely transmission of data to the MIS system, real-time monitoring of production, timely monitoring of production, production abnormal information can be obtained at any time, and timely feedback can be done. Emergency treatment. It also realizes that the corresponding production unit can be found for each product, and the effect of tracing the source can be achieved.

Embodiment two

Based on Embodiment 1, the difference of this embodiment is:

In step 3), the injection mold is scanned and photographed with blue light by the position detector inside the injection molding machine 6. If there is no product in the injection mold, a signal is sent to the server to control the second manipulator 5 to put the product, and then the position detector is used again to The injection mold is scanned and photographed with blue light to judge whether the product is placed in place in the injection mold, until the product is placed accurately, and the server controls the second manipulator 5 to leave. By detecting the position of the product, it is possible to avoid damage to the injection mold or other unpredictable failures due to improper placement of the product.

Embodiment Three

Based on Embodiment 1 and Embodiment 2, the difference of this embodiment is:

The AGV transport vehicle is controlled by the PLC control program to move the stacked full-loaded product loading tray to the material inlet of the automatic feeding and receiving machine 1; the AGV transport vehicle is controlled by the PLC control program to move to the automatic feeding and receiving machine 1 The receiving port of the machine receives stacked receiving trays, and then the PLC control program controls the AGV transport vehicle to leave and go to the receiving dock.

When the induction system senses that the feeding tray in the automatic feeding and receiving machine 1 is empty and sends a signal to the server, the server controls the AGV transport vehicle to replenish the feeding tray; The receiving tray is full and sends a signal to the server, and the server controls the AGV transport vehicle to take away the receiving tray.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Although this article uses more terms such as fully automatic feeding and receiving machine 1; first manipulator 2; visual detector 3; positioning platform 4; second manipulator 5; injection molding machine 6; The possibility of using other terms is excluded. These terms are used only for the purpose of describing and explaining the essence of the present invention more conveniently; interpreting them as any kind of additional limitation is against the spirit of the present invention.

Claims (10)

1. The utility model provides an automatic go up unloading injection moulding process, the equipment that uses includes full-automatic confession material machine, vision detector, location platform, injection molding machine, sweeps sign indicating number carving machine, first manipulator, second manipulator, induction system and server, and its characterized in that goes up unloading injection moulding process automatically includes following step:

1) The full-automatic confession of server control is received the material machine and is ascended and export and go up the charging tray one by one, and the product of the first manipulator of server control in with the charging tray takes out and moves and carry to the vision detector, and the induction system sensing targets in place and carries out blue light scanning by the vision detector to the product and shoot, judges whether the product has incomplete or the bad condition in large tracts of land:

a. if the product is bad, directly discharging to a waste material position;

b. if the product is good, entering the step 2);

2) The induction system senses the vacancy on the positioning platform, and the server controls the first manipulator to transfer the product to the positioning platform for secondary accurate positioning;

3) The sensing system senses that the positioning platform is full, and the server controls the second mechanical arm to clamp and transfer the product to an injection molding machine for product injection molding;

4) The server controls the second mechanical arm to place the formed product into a code scanning jig of a code scanning and carving machine to be transferred, the sensing system senses that the formed product is in place, the server controls the code scanning and carving machine to scan and identify the product code of the formed product, product information is read and fed back to the server, original product information and new injection molding information are bound together to form new two-dimensional code information, laser is used for laser carving of a two-dimensional code graph on the formed product, and finally the new two-dimensional code graph is scanned again to conduct information feedback and gathering;

5) And after the server receives the laser etching completion signal, controlling the first mechanical arm to take out the product subjected to laser etching and transfer the product to a material receiving disc in the full-automatic material supplying and receiving machine, and controlling the full-automatic material supplying and receiving machine to gradually descend and superpose the material receiving discs by the server.

2. The automatic loading and unloading injection molding process of claim 1, wherein the server is at least provided with an MIS information management program, a PLC control program, a manipulator program, a visual inspection program and an induction signal receiving program; the sensing system at least comprises an infrared sensor and a contact sensor.

3. The automatic loading and unloading injection molding process of claim 2, wherein the AGV transport vehicle is controlled by the PLC control program to move the stacked loading trays full of products to the feeding port of the full-automatic feeding and receiving machine; control the AGV transport vechicle through PLC control program and remove to the material collecting port that full-automatic confession was received the material machine and receive the material collecting disk of superpose, then PLC control program controls the AGV transport vechicle and leaves and go to receiving the material pier.

4. The automatic feeding and discharging injection molding process according to claim 3, wherein when the sensing system senses that the feeding tray in the full-automatic feeding and receiving machine is empty and sends a signal to the server, the server controls the AGV to supplement the feeding tray; when the sensing system senses that the receiving tray in the full-automatic material receiving machine is fully stacked and sends a signal to the server, the server controls the AGV to take away the receiving tray.

5. The automatic loading and unloading injection molding process of claim 1, wherein in step 1), the product defect specifically means that the product has a corner defect and/or deformation; the large-area defective product specifically means that the surface flatness of the product is unqualified and exceeds a set area.

6. The automatic feeding and discharging injection molding process as claimed in claim 1, wherein in the step 2), the positioning platform is positioned in a multi-point inserting manner through the positioning pins, so that the product is precisely positioned for the second time on the positioning platform to ensure the position accuracy.

7. The automatic loading and unloading injection molding process of claim 1, wherein in step 3), the server controls the second manipulator to take out a molded product in the injection molding machine by using the material taking clamping jaws, and then turn over the material placing clamping jaws to place an un-molded product in the injection mold.

8. The automatic loading and unloading injection molding process of claim 7, wherein in step 3), the injection mold is subjected to blue light scanning shooting through a position detector inside the injection molding machine, if no product exists in the injection mold, a signal is sent to a server to control a second manipulator to place the product, and then the position detector is used again to perform blue light scanning shooting on the injection mold so as to judge whether the product is placed in place in the injection mold until the product is placed accurately and the server controls the second manipulator to leave.

9. The automatic feeding and discharging injection molding process as claimed in claim 1, wherein in step 4), the new injection molding information is the product origin, specifically the injection molding equipment information and the production time.

10. The automatic feeding and discharging injection molding process as claimed in claim 1, wherein in step 1) or 5), the first mechanical arm takes out the product subjected to laser etching by using a material taking clamping jaw and puts the product into a material receiving tray in the full-automatic material supplying and receiving machine; then, the material receiving machine is turned over to switch the material discharging clamping jaws to clamp the non-injection-molded product in the full-automatic material receiving machine and put into the vision detector.

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