An EPP material-based packing box forming and processing device and method

Abstract

The present invention discloses a forming and processing device and method for an EPP material packaging box, which relates to the technical field of the forming of packaging boxes and includes an operating table. A plastic injection machine is arranged on the top of the operating table, and a moving module for pushing the plastic injection machine to move for injection is arranged at the bottom of the plastic injection machine. It also includes: a support plate fixedly connected to the top of the operating table, and a fixed mold for injection is fixedly connected to the side of the support plate away from the plastic injection machine. By driving the connecting plate to rotate through a rotating rod, the annular nozzle on the connecting plate is targeted to spray the four corners. At the same time, in order to increase the variation range, the first electric push rod between the two rotating plates can also be started. The first electric push rod drives the limiting plate to move, and the limiting plate drives the two rotating plates to adjust the angle through the connecting shaft on the rotating plate, so as to complete the spraying of the four corners and special points inside the moving mold, and ensure the comprehensive spraying of the release agent inside the moving mold.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging box forming, and in particular to a forming processing device and method for a packaging box based on EPP material. Background Art

[0002] Injection molding is a method of producing industrial products. Products usually use injection molding and plastic injection molding. Injection molding can also be divided into injection molding and die casting. It is the main molding equipment for plastic products of various shapes made of plastic using plastic molding molds. EPP material packaging boxes are injection molded by injection molding machines.

[0003] A standard part injection molding device and its injection molding process disclosed in the patent application with reference publication number CN116945519A include a device body, a hydraulic cylinder is fixedly connected to the front of the top of the device body, a feeding assembly is fixedly connected to the back of the hydraulic cylinder, a feed pipe is fixedly connected to the front of the top of the feeding assembly, a lower mold is fixedly connected to the back of the feed pipe, an upper mold is arranged on the top of the lower mold, guide columns are symmetrically and movably connected in the inner cavity of two limit movable grooves, auxiliary locking assemblies are symmetrically and fixedly connected to the left and right sides of the bottom of the upper mold, a cooling assembly is fixedly connected to the back of the inner cavity of the device body, a heat conducting coil is arranged on the top of the condenser, and a heat conducting sheet is fixedly connected to the top of the heat conducting coil. The standard part injection molding device and its injection molding process described in the present invention have high injection molding efficiency and good precision, have good buffering and closing components when closing the mold, can ensure the sealing of closing the mold, and are equipped with a circulating cooling component, and the overall injection molding process is more environmentally friendly.

[0004] In the above scheme, molding is performed through a single mold. Before mold injection, it is often necessary to spray a release agent on the inner wall of the mold to ensure that the mold can be smoothly detached after subsequent cooling and molding. Since the cavity inside the mold is often concave and convex, the release agent cannot be fully sprayed on the inside of the mold during the spraying process.

[0005] Therefore, it is necessary to provide a molding processing device and method based on EPP material packaging box to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide a molding processing device and method based on an EPP material packaging box to solve the problems of the defects of the prior art mentioned in the above background technology.

[0007] Based on the above ideas, the present invention provides the following technical solutions: a molding processing device based on an EPP material packaging box, comprising an operating table, an injection molding machine is arranged on the top of the operating table, and a moving module for driving the injection molding machine to move during injection molding is arranged at the bottom of the injection molding machine, and further comprising:

[0008] A support plate fixedly connected to the top of the operating table. On the side of the support plate away from the injection molding machine, a fixed mold for injection molding is fixedly connected. On one side of the fixed mold, there are two movable molds for adapting to the fixed mold. The two movable molds are fixed by a support plate and are horizontally arranged;

[0009] A switching component is arranged at the bottom of one of the movable molds and is used to drive the two movable molds to switch left and right and alternately combine with the fixed mold;

[0010] Two groups of spraying components are respectively arranged on both sides of the support plate. When the switching component switches the two movable molds, the spraying components spray the release agent inside the molding of the movable mold;

[0011] The spraying component includes a fixed spraying structure and an adjustable spraying structure, which are used to spray the release agent inside the molding of the movable mold. The fixed spraying structure realizes large-range spraying, and the adjustable spraying mechanism performs specified spraying for special positions.

[0012] As a further solution of the present invention: The fixed spraying structure includes:

[0013] A placement rack fixedly connected to one side of the fixed side plate. On the side of the placement rack away from the fixed side plate, a fixed nozzle for atomizing spraying is fixedly connected;

[0014] A storage tank fixedly connected to one side of the fixed side plate. A connecting pipe for conveying is fixedly connected between the storage tank and the fixed nozzle. The inside of the storage tank is provided with a release agent, and a conveying pump is arranged between the connecting pipe and the storage tank for atomizing pressurization.

[0015] As a further solution of the present invention: The adjustable spraying structure:

[0016] Two rotating plates are respectively arranged on both sides of the placement rack. All four rotating plates are rotatably connected to the fixed side plate, and a chute is opened at one end of the four rotating plates;

[0017] An adjusting member for adjusting the angle between two rotating plates on the same side. The adjusting member includes limiting plates arranged on both sides of the placement rack, and a first electric push rod is arranged between the two limiting plates and the placement rack. The first electric push rod is fixedly connected to the outside of the placement rack, and the telescopic end of the first electric push rod is fixedly connected to the limiting plate. A connecting shaft is fixedly connected to the outside of the rotating plate and extends into the adjacent limiting plate and is slidably connected to the limiting plate.

[0018] As a further solution of the present invention: The adjustable spraying structure further includes:

[0019] A sliding block arranged inside the chute of the rotating plate. A second electric push rod is fixedly connected to one end of the rotating plate, and the telescopic end of the second electric push rod penetrates through the rotating plate and is fixedly connected to the sliding block, which is used to push the sliding block to slide inside the rotating plate;

[0020] A rotating rod passing through the sliding block and rotatably connected to the sliding block. One end of the rotating rod is fixedly connected to a connecting plate. On the side of the sliding block away from the connecting plate, a first motor is fixedly connected. The output end of the first motor is fixedly connected to the rotating rod and is used to drive the connecting plate to rotate.

[0021] An annular spray head for spraying release agent. The annular spray head is fixedly connected to the outside of the connecting plate, and an output pipe for supplying release agent is fixedly connected and communicated to the outside of the annular spray head. The other end of the output pipe is communicated with a connecting pipe.

[0022] As a further solution of the present invention: An installation cylinder is arranged on the side of the connecting plate away from the annular spray head, and an opening is arranged on the side of the installation cylinder close to the connecting plate. A fixed disk is fixedly connected inside the installation cylinder. A expandable airbag is fixedly connected to the side of the fixed disk close to the opening. An inflation assembly for inflating the airbag is arranged inside the installation cylinder. The outside of the rotating rod is fixedly connected with a third electric push rod through a support plate. The telescopic end of the third electric push rod is rotatably connected to the installation cylinder and is used to push the installation cylinder to pass through the connecting plate and the annular spray head in sequence. When the third electric push rod pushes the installation cylinder to move, the airbag is inflated through the inflation assembly, and the airbag is closely attached to the inside of the moving mold, and the release agent is applied to the inside of the moving mold.

[0023] As a further solution of the present invention: The inflation assembly includes:

[0024] A movable disk arranged inside the installation cylinder. A gas cylinder is fixedly connected between the side of the movable disk away from the airbag and one end inside the installation cylinder. A conveying pipe for gas transmission is arranged between the gas cylinder and the airbag. When the installation cylinder squeezes the gas cylinder, the gas filled inside the gas cylinder rushes into the airbag.

[0025] An annular fixing frame sleeved on the outside of the installation cylinder. The annular fixing frame is fixedly connected to the connecting plate. A plurality of sliding plates are fixedly connected to the outside of the movable disk. The plurality of sliding plates all pass through the installation cylinder, and the sliding plates are rotatably connected to the annular fixing frame and are used to support the movable disk.

[0026] As a further solution of the present invention: A plurality of limiting strips are fixedly connected to the outside of the installation cylinder. The plurality of limiting strips are arranged annularly around the installation cylinder. An external gear ring is slidably connected to the outside of the installation cylinder. The external gear ring is sleeved on the outside of the installation cylinder and is slidably connected to the installation cylinder. The external gear ring is rotatably connected to the connecting plate. A gear is meshed and connected to the outside of the external gear ring. A second motor is fixedly connected to the outside of the connecting plate. The output shaft of the second motor is fixedly connected to the gear. An elastic cleaning belt is arranged at the open end of the installation cylinder. A camera for shooting is fixedly connected to the side of the placement rack close to the moving mold.

[0027] As a further solution of the present invention: The switching assembly includes:

[0028] A support frame fixed to the bottoms of two moving molds. A sliding table is fixedly connected to the bottom of the support frame.

[0029] A driving module for driving the horizontal movement of the sliding table. A sliding support is fixedly connected to the bottom of the driving module, and the sliding support is slidably connected to the top of the operating table;

[0030] A pushing hydraulic cylinder fixedly connected to the top of the operating table. The telescopic end of the pushing hydraulic cylinder is fixedly connected to the sliding support, and is used to push the moving mold and the fixed mold to fit together.

[0031] As a further solution of the present invention: a top plate is provided inside both moving molds. A hydraulic rod is fixedly connected to the outside of the moving mold, and the telescopic end of the hydraulic rod is fixedly connected to the top plate, and is used to push the workpiece for molding out of the inside of the moving mold.

[0032] A molding processing method based on an EPP material packaging box is also provided, including the following steps:

[0033] Step 1: Through the switching component, one of the moving molds is made to fit with the fixed mold, and then through the moving module, the injection head of the injection molding machine is made to fit with the injection port of the fixed mold, and then injection molding is carried out;

[0034] Step 2: After the injection molding is cooled, the moving mold and the fixed mold are separated by the switching component, and the workpiece inside the moving mold is taken out;

[0035] Step 3: Then, through the switching component, the other moving mold is made to fit with the fixed mold again, and the other moving mold is switched to the spraying component on the side of the fixed side plate to spray the release agent on the used moving mold;

[0036] Step 4: The two moving molds are alternately made to fit with the fixed mold for injection molding.

[0037] Compared with the prior art, the beneficial effects of the present invention are:

[0038] 1. By the switching component, the other moving mold is made to fit with the fixed mold again, and the other moving mold is switched to the spraying component on the side of the fixed side plate to spray the release agent on the used moving mold; the two moving molds are alternately made to fit with the fixed mold for injection molding, avoiding the waste of time for the injection molded workpiece to cool between the moving mold and the fixed mold, and improving the overall working efficiency by spraying the release agent on the inner forming cavity of the other moving mold.

[0039] 2. By driving the connecting plate to rotate and adjust through the rotating rod, the annular nozzle on the connecting plate sprays specifically on the four corners. At the same time, in order to increase the variation range, the first electric push rod between the two rotating plates can also be started. The first electric push rod drives the limiting plate to move, and the limiting plate drives the two rotating plates to adjust the angle through the connecting shaft on the rotating plate, so as to complete the spraying on the four corners and special points inside the moving mold, ensuring the comprehensive spraying of the release agent inside the moving mold.

[0040] 3. When the installation cylinder moves, the cleaning belt inside the installation cylinder expands. The cleaning belt extends out from the inside of the installation cylinder and passes through the annular spray head together with the installation cylinder. When the expanded cleaning belt contacts the release agent outside the annular spray head, a large amount of release agent adheres to its surface. As the installation cylinder moves, at this time, the cleaning belt contacts the uneven parts to be sprayed. Since the cleaning belt is fully attached to the uneven parts under the extrusion of the installation cylinder, it will drive the release agent to be evenly wiped onto the uneven parts, thus completing the coating of the parts that cannot be sprayed.

[0041] 4. When the installation cylinder rotates, it drives the airbag to rotate together through the fixed disk, so that the cleaning belt cleans the sticky parts and wipes off the sticky substances. Moreover, the cleaning belt is made of sponge material, which will not cause any impact during the later spraying, and can also extrude the release agent through extrusion to improve the wiping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The present invention will be further described below in conjunction with the drawings and embodiments.

[0043] Figure 1 is the schematic diagram of the overall structure of the present invention;

[0044] Figure 2 is the schematic diagram of the operating table structure of the present invention;

[0045] Figure 3 is the schematic diagram of the sliding support structure of the present invention;

[0046] Figure 4 is the schematic diagram of the support plate structure of the present invention;

[0047] Figure 5 is the schematic diagram of the fixed side plate structure of the present invention;

[0048] Figure 6 is the schematic diagram of the switching component structure of the present invention;

[0049] Figure 7 is the schematic diagram of the placement rack structure of the present invention;

[0050] Figure 8 is the schematic diagram of the storage tank structure of the present invention;

[0051] Figure 9 is the schematic diagram of the rotating plate structure of the present invention;

[0052] Figure 10 is the schematic diagram of the installation cylinder structure of the present invention;

[0053] Figure 11 is the schematic diagram of the sectional structure of the installation cylinder of the present invention;

[0054] Figure 12 is the schematic diagram of the inflation component structure of the present invention;

[0055] Figure 13 This is a schematic diagram of the air cylinder structure of the present invention.

[0056] In the figure: 1, operating table; 2, injection molding machine; 201, moving module; 3, fixed mold; 301, support plate; 4, moving mold; 400, top plate; 401, support frame; 402, sliding table; 403, driving module; 5, sliding support; 501, pushing hydraulic cylinder; 6, fixed side plate; 7, placement rack; 8, rotating plate; 801, limiting plate; 802, connecting shaft; 803, first electric push rod; 9, sliding block; 900, second electric push rod; 901, connecting plate; 902, annular spray head; 903, output pipe; 904, first motor; 905, rotating rod; 10, storage tank; 101, fixed spray head; 11, installation cylinder; 110, third electric push rod; 111, movable disk; 112, airbag; 114, annular fixing frame; 115, sliding plate; 116, air cylinder; 117, fixed disk; 12, limiting strip; 121, external gear ring; 122, gear; 123, second motor; 124, cleaning belt; 125, camera. Specific embodiments

[0057] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0058] As Figures 1 to 13 shown, a forming and processing device and method for an EPP material packaging box includes the following embodiments:

[0059] Embodiment 1: As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, it includes an operating table 1, an injection molding machine 2 is arranged on the top of the operating table 1, and a moving module 201 for pushing the injection molding machine 2 to move for injection is arranged at the bottom of the injection molding machine 2. The moving module 201 adopts an existing hydraulic cylinder or electric push rod to ensure that the injection head arranged on the injection molding machine 2 can be smoothly attached to the injection port of the mold. It also includes:

[0060] A support plate 301 fixedly connected to the top of the operating table 1, a fixed mold 3 for injection is fixedly connected to the side of the support plate 301 away from the injection molding machine 2, and two moving molds 4 for adapting to the fixed mold 3 are arranged on one side of the fixed mold 3. The two moving molds 4 are fixed by a support plate, and the two moving molds 4 are horizontally arranged;

[0061] The switching component is arranged at the bottom of one of the moving molds 4 and is used to drive the two moving molds 4 to switch left and right and alternately combine with the fixed mold 3;

[0062] Two groups of spraying components are respectively arranged on both sides of the support plate 301. When the switching component switches the two moving molds 4, the spraying components spray the release agent inside the formed moving mold 4;

[0063] The spraying component includes a fixed spraying structure and an adjustable spraying structure for spraying the release agent inside the formed moving mold 4. The fixed spraying structure realizes large-range spraying, and the adjustable spraying mechanism performs targeted spraying for special positions.

[0064] During specific implementation, one of the moving molds 4 is fitted with the fixed mold 3 through the switching component, and then the injection head of the injection molding machine 2 is fitted with the injection port of the fixed mold 3 through the moving module 201, and then injection molding is carried out; after the injection molding is cooled, the moving mold 4 is separated from the fixed mold 3 through the switching component, and the workpiece inside the moving mold 4 is taken out; then another moving mold 4 is re-fitted with the fixed mold 3 through the switching component, and the other moving mold 4 is switched to the spraying component on one side of the fixed side plate 6 to spray the release agent on the used moving mold 4; the two moving molds 4 are alternately fitted with the fixed mold 3 for injection molding, avoiding the waste of time for the injection molded workpiece to cool between the moving mold 4 and the fixed mold 3, and improving the overall working efficiency by spraying the release agent on the inner forming cavity of the other moving mold 4.

[0065] As Figure 6 shown, in this embodiment, the switching component includes:

[0066] The support frame 401 fixed to the bottoms of the two moving molds 4, and the bottom of the support frame 401 is fixedly connected with a sliding table 402;

[0067] The driving module 403 for driving the horizontal movement of the sliding table 402, the bottom of the driving module 403 is fixedly connected with a sliding support 5, and the sliding support 5 is slidably connected to the top of the operating table 1;

[0068] The push hydraulic cylinder 501 fixedly connected to the top of the operating table 1, the telescopic end of the push hydraulic cylinder 501 is fixedly connected with the sliding support 5, and is used to push the moving mold 4 to fit with the fixed mold 3.

[0069] The top plates 400 are arranged inside both of the two moving molds 4, and hydraulic rods are fixedly connected to the outside of the moving molds 4, and the telescopic ends of the hydraulic rods are fixedly connected with the top plates 400, and are used to push the formed model out of the inside of the moving mold 4.

[0070] In specific implementation, in this solution, when it is necessary to switch between two moving molds 4, the pushing hydraulic cylinder 501 is started, and the telescopic end of the pushing hydraulic cylinder 501 pushes the sliding support 5 towards the fixed mold 3. At this time, one of the two moving molds 4 fixedly connected to the sliding table 402 on the sliding support 5 fits with the fixed mold 3, thereby forming a complete injection mold. After cooling is completed, the sliding support 5 is pulled away from the fixed mold 3 by the pushing hydraulic cylinder 501. Then, the workpiece inside the moving mold 4 is pushed by the hydraulic cylinder inside to separate from the moving mold 4. A through groove is provided on the operating table 1, and after the workpiece falls into the through groove, it slides out. Then, the driving module 403 drives the sliding table 402 to move left and right. The driving module 403 can be an existing linear screw module, so that the two moving molds 4 alternately spray the release agent. The release agent can improve the demolding effect of the mold and the finished product in injection molding, prevent adhesion, deformation or damage, and at the same time extend the service life of the mold and reduce costs. Moreover, the release agent can be directly added to the resin to form a continuous and stable lubricating film, eliminating the trouble of constantly cleaning the mold.

[0071] As Figure 5 and Figure 7 shown, Embodiment 2: The fixed spraying structure includes:

[0072] A placement rack 7 fixedly connected to one side of the fixed side plate 6. A fixed nozzle 101 for atomizing spraying is fixedly connected to the side of the placement rack 7 away from the fixed side plate 6;

[0073] A storage tank 10 fixedly connected to one side of the fixed side plate 6. A communication pipe for conveying is fixedly connected between the storage tank 10 and the fixed nozzle 101. The release agent is provided inside the storage tank 10, and a delivery pump is provided between the connecting pipe and the storage tank 10 for atomizing and pressurizing.

[0074] In specific implementation, when the used moving mold 4 approaches the placement rack 7 on the fixed side plate 6, by starting the delivery pump, the release agent inside the storage tank 10 is sprayed inside the moving mold 4 through the fixed nozzle 101 to form a release agent protection film, which is convenient for the later separation of the model from the moving mold 4.

[0075] As Figure 7 , Figure 8 and Figure 9 shown, in this embodiment, the adjustable spraying structure:

[0076] Two rotating plates 8 are respectively arranged on both sides of the placement rack 7. The four rotating plates 8 are all rotatably connected to the fixed side plate 6, and a chute is opened at one end of each of the four rotating plates 8;

[0077] An adjusting member for adjusting the angle between two same-side rotating plates 8, the adjusting member includes limiting plates 801 arranged on both sides of the placing rack 7, and first electric push rods 803 are provided between the two limiting plates 801 and the placing rack 7. The first electric push rods 803 are fixedly connected to the outside of the placing rack 7, and the telescopic ends of the first electric push rods 803 are fixedly connected to the limiting plates 801. A connecting shaft 802 is fixedly connected to the outside of the rotating plate 8, and the connecting shaft 802 extends into the adjacent limiting plate 801 and is slidably connected to the limiting plate 801.

[0078] The spraying structure further includes:

[0079] A sliding block 9 arranged inside the chute of the rotating plate 8. One end of the rotating plate 8 is fixedly connected with a second electric push rod 900. The telescopic end of the second electric push rod 900 penetrates through the rotating plate 8 and is fixedly connected with the sliding block 9, and is used to push the sliding block 9 to slide inside the rotating plate 8;

[0080] A rotating rod 905 passing through the sliding block 9 and rotatably connected to the sliding block 9. One end of the rotating rod 905 is fixedly connected with a connecting plate 901. A first motor 904 is fixedly connected to the side of the sliding block 9 away from the connecting plate 901. The output end of the first motor 904 is fixedly connected with the rotating rod 905, and is used to drive the connecting plate 901 to rotate;

[0081] An annular nozzle 902 for spraying the release agent. The annular nozzle 902 is fixedly connected to the outside of the connecting plate 901, and an output pipe 903 for providing the release agent is fixedly communicated with the outside of the annular nozzle 902. The other end of the output pipe 903 is communicated with the communicating pipe.

[0082] During specific implementation, when the fixed spraying structure finishes spraying inside the moving mold 4, but in the actual production process, for the packing box, the forming cavity inside the moving mold 4 often cannot be sprayed in place at the four corners, and for special positions, sticking is very likely to occur. Therefore, targeted spraying is required for specific positions. In this solution, a sliding block 9 is arranged inside one end of the rotating plate 8, and the position of the sliding block 9 inside the rotating plate 8 is adjusted by the second electric push rod 900. At the same time, the first motor 904 can be started. The output shaft of the first motor 904 drives the rotating rod 905 to rotate, and the rotating rod 905 drives the connecting plate 901 to rotate and adjust, so that the annular nozzle 902 on the connecting plate 901 sprays the four corners specifically. At the same time, in order to increase the variation range, the first electric push rod 803 between the two rotating plates 8 can also be started. The first electric push rod 803 drives the limiting plate 801 to move, and the limiting plate 801 drives the two rotating plates 8 to adjust the angle through the connecting shaft 802 on the rotating plate 8, so as to complete the spraying of the four corners and special points inside the moving mold 4, and ensure the comprehensive spraying of the release agent inside the moving mold 4.

[0083] Embodiment 3: AsFigure 10 , Figure 11 , Figure 12 and Figure 13 As shown in Figure 10 , Figure 11 , Figure 12 and Figure 13 , on the side of the connecting plate 901 away from the annular spray head 902, an installation cylinder 11 is provided. An opening is provided on the side of the installation cylinder 11 close to the connecting plate 901. A fixed disk 117 is fixedly connected inside the installation cylinder 11. An inflatable airbag 112 is fixedly connected to the side of the fixed disk 117 close to the opening. An inflation assembly for inflating the airbag 112 is provided inside the installation cylinder 11. A third electric push rod 110 is fixedly connected to the outside of the rotating rod 905 through a support plate. The telescopic end of the third electric push rod 110 is rotationally connected to the installation cylinder 11 and is used to push the installation cylinder 11 through the connecting plate 901 and the annular spray head 902 in sequence. When the third electric push rod 110 pushes the installation cylinder 11 to move, the airbag 112 is inflated through the inflation assembly, and the airbag 112 is in close contact with the inside of the moving mold 4, and the release agent is applied to the inside of the moving mold 4.

[0084] During specific implementation, when there are uneven places inside the moving mold 4, the sprayed release agent is often blocked due to the special shape of the chamber, and the release agent cannot be completely sprayed. Therefore, in this solution, when spraying at this point by adjusting the spraying mechanism based on the second embodiment, the third electric push rod 110 is started, so that the third electric push rod 110 pushes the installation cylinder 11 through the connecting plate 901 and the annular spray head 902. When the installation cylinder 11 moves, the cleaning belt 124 inside the installation cylinder 11 expands, and the cleaning belt 124 extends out of the installation cylinder 11 and passes through the annular spray head 902 together with the installation cylinder 11. When the expanded cleaning belt 124 contacts the release agent outside the annular spray head 902, the surface is covered with a large amount of release agent. As the installation cylinder 11 moves, at this time, the cleaning belt 124 contacts the uneven places that need to be sprayed. Since the cleaning belt 124 is fully attached to the uneven places under the extrusion of the installation cylinder 11, it will drive the release agent to be evenly wiped to the uneven places, thus completing the application to the places that cannot be sprayed.

[0085] As Figure 13 shown in Figure 13 , in this embodiment, the inflation assembly includes:

[0086] A movable disk 111 provided inside the installation cylinder 11. A gas cylinder 116 is fixedly connected between the side of the movable disk 111 away from the airbag 112 and one end inside the installation cylinder 11. A delivery pipe for gas delivery is provided between the gas cylinder 116 and the airbag 112. When the installation cylinder 11 squeezes the gas cylinder 116, the gas filled inside the gas cylinder 116 rushes into the airbag 112.

[0087] An annular fixing frame 114 sleeved outside the mounting cylinder 11. The annular fixing frame 114 is fixedly connected to the connecting plate 901. A plurality of sliding plates 115 are fixedly connected to the outside of the movable disc 111. The plurality of sliding plates 115 all pass through the mounting cylinder 11, and the sliding plates 115 are rotatably connected to the annular fixing frame 114 for supporting the movable disc 111.

[0088] During specific implementation, when the third electric push rod 110 pushes the mounting cylinder 11 to move, the movable disc 111 inside the mounting cylinder 11 remains stationary through the sliding plates 115 and the annular fixing frame 114, while the mounting cylinder 11 continuously squeezes the air cylinder 116, and the gas inside the air cylinder 116 rushes into the airbag 112, thus completing the automatic inflation of the airbag 112. And when the mounting cylinder 11 is reset later, the air cylinder 116 inhales the gas again, causing the airbag 112 to contract and re-enter the mounting cylinder 11.

[0089] As Figure 11 and Figure 12 shown, Embodiment 4: A plurality of limiting strips 12 are fixedly connected to the outside of the mounting cylinder 11. The plurality of limiting strips 12 are arranged annularly around the mounting cylinder 11. An external gear ring 121 is slidably connected to the outside of the mounting cylinder 11. The external gear ring 121 is sleeved outside the mounting cylinder 11 and is slidably connected to the mounting cylinder 11. The external gear ring 121 is rotatably connected to the connecting plate 901. A gear 122 is meshed and connected to the outside of the external gear ring 121. A second motor 123 is fixedly connected to the outside of the connecting plate 901. The output shaft of the second motor 123 is fixedly connected to the gear 122. An elastic cleaning belt 124 is arranged at the open end of the mounting cylinder 11. A camera 125 for photographing is fixedly connected to the placing rack 7 close to the moving die 4 side.

[0090] During specific implementation, by setting the camera 125, the camera 125 photographs and observes the inside of the moving die 4. When there is adhesion inside the moving die 4, a cleaning belt 124 is arranged at the opening of the mounting cylinder 11. When the gear 122 expands, it drives the cleaning belt 124 to contact the inside of the moving die 4 along with the gear 122. At this time, by starting the second motor 123, the second motor 123 drives the gear 122 to rotate. The gear 122 drives the meshed external gear ring 121 to rotate. The limiting strips 12 pass through the external gear ring 121 and are slidably connected to the external gear ring 121. The outside of the external gear ring 121 drives the mounting cylinder 11 to rotate through the limiting strips 12 on the outside of the mounting cylinder 11, ensuring that the external gear ring 121 can drive the mounting cylinder 11 to rotate, and when the mounting cylinder 11 approaches the moving die 4, it will not affect the mounting cylinder 11. When the mounting cylinder 11 rotates, it drives the airbag 112 to rotate together through the fixed disc 117, so that the cleaning belt 124 cleans the adhesion, wipes off the adhesion, and the cleaning belt 124 is made of sponge material. During later spraying, the cleaning belt 124 will not cause interference, and can also extrude the release agent through extrusion to improve the wiping effect.

[0091] Also provided is a molding and processing method for a packing box made of EPP material, comprising the following steps:

[0092] Step 1: Fit one of the moving molds 4 with the fixed mold 3 through a switching component, then fit the injection head of the injection molding machine 2 with the injection port of the fixed mold 3 through the moving module 201, and then perform injection molding;

[0093] Step 2: After the injection molding is cooled, separate the moving mold 4 from the fixed mold 3 through the switching component, and take out the workpiece inside the moving mold 4;

[0094] Step 3: Then fit the other moving mold 4 with the fixed mold 3 again through the switching component, and switch the other moving mold 4 to the spraying component on the side of the fixed side plate 6 to spray the release agent on the used moving mold 4;

[0095] Step 4: The two moving molds 4 are alternately fitted with the fixed mold 3 for injection molding.

[0096] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0097] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0098] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A molding processing device based on an EPP material packaging box, comprising an operating table (1), an injection molding machine (2) is arranged on the top of the operating table (1), and a moving module (201) for driving the injection molding machine (2) to move during injection molding is arranged at the bottom of the injection molding machine (2), characterized in that: Also includes: A support plate (301) is fixedly connected to the top of the operating table (1), and a fixed mold (3) for injection molding is fixedly connected to the side of the support plate (301) away from the injection molding machine (2). Two movable molds (4) for adapting to the fixed mold (3) are arranged on one side of the fixed mold (3), and the two movable molds (4) are fixed by a support plate, and the two movable molds (4) are arranged horizontally; A switching component, the switching component is arranged at the bottom of one of the movable molds (4) and is used to drive the two movable molds (4) to switch left and right and alternately combine with the fixed mold (3); Two groups of spraying components, the two groups of spraying components are respectively arranged on both sides of the support plate (301), when the switching component switches the two movable molds (4), the spraying components spray the mold release agent on the inside of the movable mold (4); The spraying assembly comprises a fixed spraying structure and an adjustable spraying structure, which are used to spray a mold release agent on the molding interior of the movable mold (4), wherein the fixed spraying structure realizes a wide range of spraying, and the adjustable spraying structure realizes a designated spraying at a specific position; The regulating spraying structure: Two rotating plates (8) are respectively arranged on both sides of the placement frame (7), the four rotating plates (8) are all rotatably connected to the fixed side plate (6), and one end of the four rotating plates (8) is provided with a slide groove; An adjusting member for adjusting the angle between two rotating plates (8) on the same side, the adjusting member comprising limit plates (801) arranged on both sides of the placement frame (7), and a first electric push rod (803) is arranged between the two limit plates (801) and the placement frame (7), the first electric push rod (803) is fixedly connected to the outside of the placement frame (7), the telescopic end of the first electric push rod (803) is fixedly connected to the limit plate (801), and a connecting shaft (802) is fixedly connected to the outside of the rotating plate (8), and the connecting shaft (802) extends to the inside of the adjacent limit plate (801) and is slidably connected to the limit plate (801).

2. According to claim 1, a forming and processing device based on an EPP material packaging box is characterized in that: The fixed spraying structure comprises: A placement rack (7) is fixedly connected to one side of the fixed side plate (6), and a fixed nozzle (101) for atomizing spraying is fixedly connected to the side of the placement rack (7) away from the fixed side plate (6); A storage tank (10) is fixedly connected to one side of the fixed side plate (6), a connecting pipe for conveying is fixedly connected between the storage tank (10) and the fixed nozzle (101), a release agent is arranged inside the storage tank (10), and a conveying pump is arranged between the connecting pipe and the storage tank (10) for atomization and pressurization.

3. The forming and processing device for the EPP packaging box according to claim 1 is characterized in that: The regulating spray structure also includes: A sliding block (9) is arranged inside the sliding groove of the rotating plate (8), one end of the rotating plate (8) is fixedly connected to a second electric push rod (900), the telescopic end of the second electric push rod (900) passes through the rotating plate (8) and is fixedly connected to the sliding block (9), and is used to push the sliding block (9) to slide inside the rotating plate (8); A rotating rod (905) passes through the sliding block (9) and is rotatably connected to the sliding block (9), one end of the rotating rod (905) is fixedly connected to the connecting plate (901), and a first motor (904) is fixedly connected to the side of the sliding block (9) away from the connecting plate (901), and an output end of the first motor (904) is fixedly connected to the rotating rod (905) for driving the connecting plate (901) to rotate; An annular nozzle (902) for spraying a mold release agent is fixedly connected to the outside of the connecting plate (901), and the outside of the annular nozzle (902) is fixedly connected to an output pipe (903) for providing the mold release agent, and the other end of the output pipe (903) is connected to a connecting pipe.

4. The forming and processing device for the EPP material packaging box according to claim 3 is characterized in that: The connecting plate (901) is provided with a mounting tube (11) on a side away from the annular nozzle (902), and an opening is provided on a side of the mounting tube (11) close to the connecting plate (901). A fixing plate (117) is fixedly connected inside the mounting tube (11), and an inflatable airbag (112) is fixedly connected to the side of the fixing plate (117) close to the opening. An inflating assembly for inflating the airbag (112) is provided inside the mounting tube (11), and the outer side of the rotating rod (905) is connected via a supporting plate. A third electric push rod (110) is fixedly connected, and the telescopic end of the third electric push rod (110) is rotatably connected to the installation tube (11) and is used to push the installation tube (11) to pass through the connecting plate (901) and the annular nozzle (902) in sequence. When the third electric push rod (110) pushes the installation tube (11) to move, the airbag (112) is expanded through the inflation component, and the airbag (112) is tightly fitted with the inside of the movable mold (4), so that the release agent is applied to the inside of the movable mold (4).

5. The forming and processing device for the EPP material packaging box according to claim 4 is characterized in that: Inflatable components include: A movable disk (111) is arranged inside the installation cylinder (11), a gas cylinder (116) is fixedly connected between a side of the movable disk (111) away from the air bag (112) and an end inside the installation cylinder (11), a delivery pipe for gas delivery is arranged between the gas cylinder (116) and the air bag (112), and when the installation cylinder (111) squeezes the gas cylinder (116), the gas filled inside the gas cylinder (116) rushes into the air bag (112); An annular fixing frame (114) is sleeved on the outside of the installation tube (11), the annular fixing frame (114) is fixedly connected to the connecting plate (901), a plurality of sliding plates (115) are fixedly connected to the outside of the movable disk (111), the plurality of sliding plates (115) all pass through the installation tube (11), and the sliding plates (115) are rotatably connected to the annular fixing frame (114), so as to support the movable disk (111).

6. The forming and processing device for the EPP material packaging box according to claim 5 is characterized in that: The outer side of the installation tube (11) is fixedly connected to a plurality of limit strips (12), the plurality of limit strips (12) are arranged in an annular manner around the installation tube (11), the outer side of the installation tube (11) is slidably connected to an outer gear ring (121), the outer gear ring (121) is sleeved on the outer side of the installation tube (11) and is slidably connected to the installation tube (11), the outer gear ring (121) is rotatably connected to a connecting plate (901), the outer side of the outer gear ring (121) is meshingly connected to a gear (122), the outer side of the connecting plate (901) is fixedly connected to a second motor (123), the output shaft of the second motor (123) is fixedly connected to the gear (122), an elastic cleaning belt (124) is arranged at one end of the opening of the installation tube (11), and a camera (125) for shooting is fixedly connected to the side of the placement frame (7) close to the movable mold (4).

7. The forming and processing device for a packaging box made of EPP material according to claim 1 is characterized in that: The switching component comprises: A support frame (401) fixed to the bottom of the two movable molds (4), wherein the bottom of the support frame (401) is fixedly connected to a sliding platform (402); A driving module (403) for driving the sliding table (402) to move horizontally, wherein a sliding support (5) is fixedly connected to the bottom of the driving module (403), and the sliding support (5) is slidably connected to the top of the operating table (1); A pushing hydraulic cylinder (501) is fixedly connected to the top of the operating table (1), and the telescopic end of the pushing hydraulic cylinder (501) is fixedly connected to the sliding support (5) for pushing the movable mold (4) and the fixed mold (3) to fit together.

8. The forming and processing device for a packaging box made of EPP material according to claim 1 is characterized in that: A top plate (400) is provided inside each of the two movable molds (4), a hydraulic rod is fixedly connected to the outside of the movable mold (4), and a telescopic end of the hydraulic rod is fixedly connected to the top plate (400) for pushing the molded model out of the movable mold (4).

9. A molding method based on an EPP material packaging box, applicable to a molding device based on an EPP material packaging box as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: fit one of the movable molds (4) to the fixed mold (3) by switching the components, fit the injection head of the injection molding machine (2) to the injection port of the fixed mold (3) by moving the module (201), and then perform injection molding; Step 2: After the injection molding is cooled, the movable mold (4) is separated from the fixed mold (3) by switching components, and the workpiece inside the movable mold (4) is taken out; Step 3: The other movable mold (4) is again fitted to the fixed mold (3) by means of a switching assembly, and the other movable mold (4) is switched to the spraying assembly on one side of the fixed side plate (6) to spray the release agent on the used movable mold (4); Step 4: The two movable molds (4) are alternately fitted with the fixed mold (3) for injection molding.

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