Forming device for plastic spoon processing

Abstract

The invention relates to the technical field of injection molding processing, and particularly discloses a molding device for plastic spoon processing, which comprises an injection molding machine for injection molding, a mounting plate I and a mounting plate II are arranged outside the injection molding machine, a female mold is mounted on one side of the mounting plate I, and a mold mechanism is mounted on one side of the mounting plate II. Through mutual cooperation of the female mold, the mold mechanism, the collecting mechanism, the driving mechanism, the flow guide mechanism, the cut-off mechanism and the unit assembly, a waste material part can be cut off, guided, collected and crushed in the injection molding process, so that the post-treatment cost and manual intervention and human errors are reduced, and the production efficiency is improved. And meanwhile, the collecting mechanism is matched with the mold mechanism, waste materials are automatically recycled and smashed, and reutilization is facilitated. The cut-off mechanism accurately controls the amount of raw materials, interference of the raw materials in the spoon groove is avoided, and the forming quality and appearance consistency of the plastic spoons are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of injection molding, and in particular relates to a molding device for processing a plastic spoon. Background Art

[0002] Plastic spoons are usually obtained by injection molding and cooling. In order to improve the output and efficiency of injection molding, multiple groups of spoons are usually injected simultaneously in a group of injection molds, which results in the need to cut the plastic spoons after they are taken out.

[0003] In the Chinese patent with the publication number CN221089846U, a mold for processing plastic spoons is mentioned, including a plastic spoon mold, a spoon cavity and a diversion cavity, and also including a cutting piece, a push block a and a push block b. The back of the plastic spoon mold is installed with a back plate by bolts, and the plastic spoon mold is provided with a diversion cavity on the side away from the back plate. The spoon cavity is provided with multiple spoon cavities, and the spoon cavity is provided with equal distances along the periphery of the diversion cavity. The end of the spoon cavity is connected to the diversion cavity, and the inner wall of the diversion cavity and the inner wall of the spoon cavity are respectively inserted with a push block a and a push block b. A set of molds for processing plastic spoons is provided, and by setting a cutting piece in the mold, the tail end of the injection-molded spoon can be cut and separated from the structure in the diversion cavity, and the cut plastic spoon and the plastic structure in the diversion cavity can be pushed out of the mold by the a push block and the b push block, respectively, so as to achieve autonomous material discharge after the plastic spoon is formed, which greatly improves the efficiency of plastic spoon processing; The existing plastic spoon processing molding device is composed of two devices, an injection molding machine and a molding mold. When in use, the injection molding machine heats the raw material and conveys it to the mold, and the two molds are extruded to form the raw material. In order to improve production efficiency, the female mold usually has multiple spoon-shaped grooves, which are arranged in a circular array and connected by the opening of the connecting groove. Therefore, when the male and female molds are matched and the injection molding process is carried out, the raw material will flow evenly to each spoon groove through the connecting groove. After the raw material is solidified and formed, there will be plastic in both the connecting groove and the spoon groove. However, after demolding, the plastic in the connecting groove will be separated from the plastic spoon and discarded, which not only increases the complexity and cost of subsequent processing, but also causes material waste. Summary of the invention

[0004] The object of the present invention is to provide a plastic spoon processing forming device to solve the problems existing in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions: A molding device for processing plastic spoons, comprising an injection molding machine for injection molding, wherein a first mounting plate and a second mounting plate are arranged outside the injection molding machine, a female mold is installed on one side of the first mounting plate, a mold mechanism is installed on one side of the second mounting plate, and a collecting mechanism, a driving mechanism, a flow guide mechanism, a cutting mechanism and a unit assembly are arranged inside the mold mechanism; the mold mechanism comprises a male mold plate and a collecting box, the male mold plate comprises a positive plate, a connecting plate, a connecting plate and a bottom plate connected to each other, a protrusion is installed on one side of the positive plate, the protrusion is used to cooperate with the female mold, the positive plate is used to cooperate with the female mold to close the material, and the collecting box is used to collect the crushed waste; the collecting mechanism comprises The invention comprises a collecting component, a crushing blade and a valve plate, wherein the collecting component is used to collect the unsolidified waste, the crushing blade is used to crush the waste, and the valve plate is used to release the waste; the driving mechanism comprises a cylinder and a transmission rod, and the driving mechanism is used to push the collecting component to block the injection hole opened by the mother mold; the flow guiding mechanism comprises a butt joint pipe, a nozzle one and a nozzle two, and the nozzle one and the nozzle two are used to transport the waste raw materials during melting and also to assist cooling; the cutting mechanism comprises a cutting block and a linkage ring, the cutting block is used to cut off the raw materials, and the linkage ring is used to cooperate with the unit component; the unit component is exactly the same as the driving mechanism, and the unit component is used to drive the linkage ring to rotate.

[0006] Preferably: an installation slot is provided at the center of the mold mechanism, an annular groove is provided between the main plate and the connecting plate, one side of the main plate is provided with plug holes and air holes which are evenly distributed around, the linkage ring is movably connected to the inside of the annular groove, the truncation block is slidably connected to the inside of the plug hole, the ports of the nozzle 1 and the nozzle 2 are located at the air hole, and the collecting mechanism is slidably connected to the inside of the installation slot.

[0007] Preferably: a connecting groove is provided in the connecting plate, the collecting assembly comprises a collecting plate and a connecting block, a through groove is provided on the periphery of the collecting plate, a collecting groove is provided at the center of the collecting plate, the crushing blade is located inside the collecting groove, a conveying groove is provided on the inner wall of the collecting groove, the conveying groove cooperates with the connecting groove, the valve plate is slidably connected to the inner wall of the conveying groove, a driving motor is installed on one side of the collecting plate, the crushing blade is installed on the output end of the driving motor, two plug-in rods are plugged into one side of the collecting plate, one end of the plug-in rod is fixedly connected to the inner wall of the installation slot, and one end of the transmission rod is located on the inner side of the connecting block.

[0008] Preferably: the connecting block is fixedly connected to one side of the collecting plate, an end cover is installed on the other side of the collecting plate, the connecting block is provided with an oblique groove, one end of the transmission rod is fixedly connected to an insertion rod, the insertion rod is slidably connected to the inside of the oblique groove, an elastic member is installed on one side of the valve plate, air bags are provided at both ends of the valve plate, one end of the air bag is attached to the valve plate, and the other end of the air bag is used to cooperate with the insertion rod.

[0009] Preferably: one end of the transmission rod is inserted into the interior of the cylinder, a piston is slidably connected to the interior of the cylinder, the piston is fixedly connected to one end of the transmission rod, and one end of the cylinder material and the transmission rod is provided with a connecting pipe, and one end of the connecting pipe is provided with a connection port.

[0010] Preferably: one side of the linkage ring is fixedly connected with evenly distributed inclined push blocks, one end of the truncation block located inside the mold mechanism is fixedly connected with a receiving block, the receiving block cooperates with the inclined push block, and an elastic member 2 is arranged above the receiving block, and the side of the linkage ring away from the inclined push block is fixedly connected with a connecting frame, the connecting frame is provided with a vertical groove, and the driving rod of the unit assembly is located inside the vertical groove.

[0011] Preferably: an injection hole for injection molding is opened at the center of the mother mold, and the periphery of the injection hole is opened with interconnected connecting groove 1, connecting ring groove, connecting groove 2 and spoon groove, the connecting groove 1, connecting ring groove and connecting groove 2 are used to disperse the raw materials and transport them to the inside of the spoon groove, and the spoon groove is used to cooperate with the raised molded plastic spoon.

[0012] Preferably: the port of the jet head one is aligned with the inside of the connecting groove one, and is close to the intersection of the connecting groove one and the connecting ring groove, the truncation block fits the connection between the connecting groove two and the spoon groove, the port of the jet head two is aligned with the inside of the connecting groove two, and the connection between the injection hole and the connecting groove one is used to cooperate with the through groove.

[0013] Preferably: one end of the butt joint pipe is connected to a distribution ring, a connecting pipe is distributed around the periphery of the distribution ring, the nozzle head 1 and the nozzle head 2 are both connected to the connecting pipe, the butt joint pipe, the distribution ring and the connecting pipe are all located inside the mold mechanism, and the nozzle head 1 and the nozzle head 2 are both unidirectional nozzles.

[0014] Preferably, an injection head is provided at the output end of the injection molding machine, and a port of the injection head fits the injection hole.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention cooperates with each other through the arrangement of the mother mold, the mold mechanism, the collecting mechanism, the driving mechanism, the guiding mechanism, the cutting mechanism and the unit assembly. When the injection molding machine injects raw materials into the space between the mother mold and the male mold plate that have been closed to each other, the driving mechanism, the unit assembly and the guiding mechanism can be connected in sequence through an external air pump, and the unit assembly, the driving mechanism, the guiding mechanism and the driving motor can be operated in sequence. The raw materials in the connecting groove 1, the connecting ring groove and the connecting groove 2 opened by the mother mold can be collected into the inside of the collecting plate and crushed, so that the waste material can be cut off, guided, collected and crushed before it is completely solidified. This not only reduces the cost of post-processing as well as manual intervention and human errors, but also improves product quality and production safety.

[0016] The present invention cooperates with the mold mechanism through the arrangement of the collecting mechanism, and after the waste is collected into the collecting plate and crushed, the collecting assembly is retracted into the mold mechanism through the reverse suction of the air pump and the driving mechanism. In this process, the opening of the valve plate allows the crushed waste to be collected, thereby facilitating later utilization.

[0017] The present invention cooperates with the cut-off mechanism and the unit assembly so that during the injection molding process, after the raw material passes through the connecting groove 1, the connecting ring groove and the connecting groove 2 in sequence and completely fills the interior of the spoon groove, the cut-off block can prevent excessive raw material from continuing to flow into the spoon groove, thereby avoiding excessive extrusion and deformation of the raw material in the spoon groove, which helps to improve the molding quality and appearance consistency of the plastic spoon. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 One of the three-dimensional diagrams of the present invention as a whole; Figure 2 A side view of the present invention as a whole; Figure 3 It is a structural schematic diagram of the mother mold and the mold mechanism of the present invention; Figure 4 For the present invention Figure 3 A magnified view of part A; Figure 5 An exploded view of the mold mechanism of the present invention; Figure 6 It is a schematic diagram of the structure inside the mold mechanism of the present invention; Figure 7 is a three-dimensional cross-sectional view of the mold mechanism of the present invention; Figure 8 It is a structural schematic diagram of the collecting mechanism and the driving mechanism of the present invention; Fig. 9 For the present invention Figure 8 Schematic diagram of some structures in ; Fig.10 It is a structural schematic diagram of the flow guiding mechanism of the present invention; Fig.11 It is a structural schematic diagram of the truncation mechanism and unit components of the present invention; Fig.12 For the present invention Fig.11 Magnified view of part B.

[0019] In the figure: 1. Injection molding machine; 11. Injection molding head; 12. Mounting plate 1; 13. Mounting plate 2; 2. Mother mold; 21. Injection hole; 22. Connecting groove 1; 23. Connecting ring groove; 24. Connecting groove 2; 25. Spoon groove; 3. Mold mechanism; 31. Male mold plate; 32. Protrusion; 33. Installing slot; 34. Ring groove; 35. Plug hole; 36. Air hole; 37. Connecting groove; 38. Collection box; 4. Collection mechanism; 41. Driving motor; 42. Crushing blade; 43. Valve plate; 44. Elastic member 1; 45. Air bag; 46. Connecting rod; 47, collecting assembly; 471, collecting plate; 472, through slot; 473, collecting slot; 474, conveying slot; 475, end cover; 476, connecting block; 477, inclined slot; 5. driving mechanism; 51. connecting port; 52. connecting pipe; 53. cylinder; 54. transmission rod; 55. piston; 56. insertion rod; 6. flow guide mechanism; 61. butt joint; 62. distribution ring; 63. connection pipe; 64. jet nozzle 1; 65. jet nozzle 2; 7. Cut-off mechanism; 71. Cut-off block; 72. Undertaking block; 73. Elastic member 2; 74. Linkage ring; 75. Inclined push block; 76. Connecting frame; 77. Vertical slot; 8. Unit components. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Reference Figure 1-Figure 12As shown, the present invention provides a molding device for processing a plastic spoon, comprising an injection molding machine 1 for injection molding, wherein a mounting plate 12 and a mounting plate 2 13 are arranged outside the injection molding machine 1, a mother mold 2 is arranged on one side of the mounting plate 12, a mold mechanism 3 is arranged on one side of the mounting plate 2 13, and a collecting mechanism 4, a driving mechanism 5, a guide mechanism 6, a cut-off mechanism 7 and a unit assembly 8 are arranged inside the mold mechanism 3; the injection molding machine 1, the mounting plate 12 and the mounting plate 2 13 are all installed on a workbench, and the mounting plate 12 and the mounting plate 2 13 are in a common frame, but only the mounting plate 2 13 can be driven to slide by an electric hydraulic cylinder, so that the mother mold 2 and the mold mechanism 3 can be closed, thereby Only then can the injection molding machine 1 be operated to inject molten raw materials into the interior of the mother mold 2 and the mold mechanism 3 to form the plastic spoon. In addition, an air pump is arranged on the workbench to connect the driving mechanism 5 and the unit assembly 8 through a hose, so that the two can be driven after operation; there are connectors on the top and one side of the mother mold 2, which are respectively used to connect the insulation pipe and the cooling pipe inside the mother mold 2. The insulation pipe is used to ensure that the raw materials inside are in a molten state during injection molding. After the raw materials completely fill the spoon groove 25 opened by the mother mold 2 and the gas in the spoon groove 25 is discharged, the materials can be cooled by the cooling pipe to form the plastic spoon; a PLC control device is usually arranged outside the injection molding machine 1 to control the entire equipment; The mold mechanism 3 includes a male mold plate 31 and a collecting box 38. The male mold plate 31 includes a positive plate, a connecting plate, a connecting plate and a bottom plate which are connected to each other. A protrusion 32 is installed on one side of the positive plate. The protrusion 32 is used to cooperate with the female mold 2. The positive plate is used to cooperate with the female mold 2 to close the material. The collecting box 38 is used to collect the crushed waste. The positive plate, the connecting plate, the connecting plate and the bottom plate are connected by bolts to facilitate the installation of objects inside and maintenance. The male mold plate 31 and the female mold 2 are molds for forming plastic spoons. After the two are closed, the protrusion 32 will enter the inside of the spoon groove 25, but will not contact and there is a certain gap.

[0022] The collecting mechanism 4 comprises a collecting assembly 47, a crushing blade 42 and a valve plate 43, wherein the collecting assembly 47 is used to collect the solidified waste, the crushing blade 42 is used to crush the waste, and the valve plate 43 is used to release the waste; The driving mechanism 5 includes a cylinder 53 and a transmission rod 54, and the driving mechanism 5 is used to push the collecting assembly 47 to block the injection hole 21 opened by the mother mold 2; The flow guiding mechanism 6 includes a butt joint 61, a nozzle 1 64 and a nozzle 2 65. The nozzle 1 64 and the nozzle 2 65 are used to transport the waste raw materials during melting and also to assist cooling. The cutting mechanism 7 includes a cutting block 71 and a linkage ring 74. The cutting block 71 is used to cut the raw material, and the linkage ring 74 is used to cooperate with the unit assembly 8. The unit assembly 8 is exactly the same as the driving mechanism 5 , and the unit assembly 8 is used to drive the linkage ring 74 to rotate.

[0023] Reference Figure 5-Figure 7 In a further embodiment, an installation slot 33 is provided at the center of the mold mechanism 3, an annular groove 34 is provided between the main plate and the connecting plate, and a side of the main plate is provided with plug holes 35 and air holes 36 that are evenly distributed around the main plate. The linkage ring 74 is movably connected to the inside of the annular groove 34, the cut-off block 71 is slidably connected to the inside of the plug hole 35, the ports of the jet head 1 64 and the jet head 2 65 are located at the air hole 36, and the collecting mechanism 4 is slidably connected to the inside of the installation slot 33.

[0024] In the present embodiment, the installation slot 33 is an installation slot 33 which is formed by the main plate, the connecting plate, the connecting plate and the bottom plate of the male mold plate 31 and is combined with each other; the main plate, the connecting plate, the connecting plate and the bottom plate included in the male mold plate 31 have pipeline grooves inside for installing the guide mechanism 6, and the pipeline grooves are also interconnected with the air holes 36. Similarly, the male mold plate 31 also has grooves that fit the driving mechanism 5 and the unit assembly 8.

[0025] Reference Figure 7-Figure 8 In a further embodiment, a connecting groove 37 is provided in the connecting plate, the collecting assembly 47 includes a collecting plate 471 and a connecting block 476, a through groove 472 is provided on the periphery of the collecting plate 471, a collecting groove 473 is provided at the center of the collecting plate 471, the crushing blade 42 is located inside the collecting groove 473, a conveying groove 474 is provided on the inner wall of the collecting groove 473, the conveying groove 474 cooperates with the connecting groove 37, the valve plate 43 is slidably connected to the inner wall of the conveying groove 474, a driving motor 41 is installed on one side of the collecting plate 471, the crushing blade 42 is installed on the output end of the driving motor 41, two plug-in rods 46 are plugged into one side of the collecting plate 471, one end of the plug-in rod 46 is fixedly connected to the inner wall of the installation slot 33, and one end of the transmission rod 54 is located on the inner side of the connecting block 476.

[0026] In this embodiment, the unit assembly 8 is located between the positive plate and the connecting plate, so that it can drive the cutting mechanism 7 located in the annular groove 34; the driving mechanism 5 is located between the connecting plate and the bottom plate, so that it can drive the collecting mechanism 4 located in the installation slot 33; the collecting box 38 is installed below the positive plate and the connecting plate and faces the connecting slot 37, so it can collect the crushed waste, and the collected waste can be reused after cleaning and other treatments; when the collecting plate 471 and the end cover 475 are retracted into the interior of the installation slot 33, the end cover 475 is coplanar with the surface of the positive plate, and at this time, the bottom end of the conveying groove 474 will be connected to the connecting groove 37; the driving motor 41 is continuously operating, so when the waste is introduced into the collecting groove 473 through the through groove 472, it will be crushed or cut off by the crushing blade 42, and due to the blade direction and rotation direction of the crushing blade 42, it can be accumulated behind the crushing blade 42, thereby preventing the crushed material from passing through the through groove 472 again.

[0027] Reference Figure 8-Figure 9 In a further embodiment, a connecting block 476 is fixedly connected to one side of a collecting plate 471, an end cover 475 is installed on the other side of the collecting plate 471, the connecting block 476 is provided with an inclined groove 477, one end of a transmission rod 54 is fixedly connected to an insert rod 56, the insert rod 56 is slidably connected inside the inclined groove 477, an elastic member 44 is installed on one side of the valve plate 43, air bags 45 are provided at both ends of the valve plate 43, one end of the air bag 45 is attached to the valve plate 43, and the other end of the air bag 45 is used to cooperate with the insert rod 46.

[0028] In this embodiment, a friction disk is provided at the end cover 475 corresponding to the crushing blade 42, so as to assist in crushing the material. The end cover 475 is mainly used for facilitating the installation of the crushing blade 42 and the valve plate 43 and other objects after disassembly; limit sliders are provided at both ends of the valve plate 43, and one end of the air bag 45 is in contact with the limit slider, and grooves are provided inside the collecting plate 471 corresponding to both ends of the valve plate 43, as well as the air bag 45 and the plug-in rod 46, so that when the collecting component 47 is retracted to the inside of the installation slot 33, the plug-in rod 46 will be passively plugged into the inside of the collecting component 47, thereby squeezing the air bag 45, and then the other end of the air bag 45 pushes the valve plate 43 in the opposite direction, thereby opening the upper port of the conveying slot 474, and the crushed waste can enter the inside of the conveying slot 474 at this time, on the contrary, when the collecting component 47 extends from the inside of the installation slot 33, the plug-in rod 46 will no longer squeeze the valve plate 43, so the valve plate 43 will close the port of the conveying slot 474 under the rebound of the elastic member 44.

[0029] Reference Figure 8In a further embodiment, one end of a transmission rod 54 is inserted into the interior of a cylinder 53, a piston 55 is slidably connected to the interior of the cylinder 53, the piston 55 is fixedly connected to one end of the transmission rod 54, and one end of the cylinder 53 and the raw material transmission rod 54 is provided with a connecting pipe 52, and one end of the connecting pipe 52 is provided with a connection port 51.

[0030] In this embodiment, the connecting port 51 is used to connect to an external air pump through a hose. When the air pump blows air, it will push the piston 55 inside the cylinder 53, so that the transmission rod 54 pushes the insertion rod 56 to move, so that the insertion rod 56 slides inside the inclined groove 477, and then the collecting component 47 is extended from the inside of the installation slot 33 as a whole. Conversely, when the air pump inhales air, the collecting component 47 will retract into the inside of the installation slot 33; the opening of the inclined groove 477 allows the through groove 472 of the collecting component 47 to be just aligned with the connecting groove 22 when it is extended, and the bottom of the conveying groove 474 will also be just aligned with the connecting groove 37 when it is retracted.

[0031] Reference Figure 11-Figure 12 In a further embodiment, one side of the linkage ring 74 is fixedly connected with evenly distributed inclined push blocks 75, one end of the truncation block 71 located inside the mold mechanism 3 is fixedly connected with a receiving block 72, the receiving block 72 cooperates with the inclined push block 75, and an elastic member 2 73 is arranged above the receiving block 72, and a connecting frame 76 is fixedly connected to the side of the linkage ring 74 away from the inclined push block 75, and the connecting frame 76 is provided with a vertical groove 77, and the driving rod of the unit assembly 8 is located inside the vertical groove 77.

[0032] In this embodiment, the rotation center of the linkage ring 74 is consistent with the center of the mold mechanism 3; the upper end surface of the cut-off block 71 has a certain curvature so as to fit the connection between the spoon groove 25 and the connecting groove 24, thereby ensuring the shape of the plastic spoon after molding; the receiving block 72 is door-shaped, so when the inclined push block 75 with an inclined surface is inserted into one side of the receiving block 72, it will push the cut-off block 71 to extend out from the inside of the ring groove 34, and the thickness of the inclined push block 75 is just enough to make one end of the cut-off block 71 completely cut off the connection between the spoon groove 25 and the connecting groove 24; the unit assembly 8 is another driving mechanism 5, so the transmission rod 54 of the unit assembly 8 is inserted into the inside of the vertical groove 77, and a vertical slide groove is provided in the vertical groove 77, which is used for the insertion rod 56 of the current unit assembly 8, so that the linkage ring 74 can rotate when the unit assembly 8 is driven.

[0033] Reference Figure 3 - Figure 12In a further embodiment, an injection hole 21 for injection molding is provided at the center of the mother mold 2, and a connecting groove 1 22, a connecting ring groove 23, a connecting groove 24 and a spoon groove 25 which are interconnected are provided on the periphery of the injection hole 21. The connecting groove 1 22, the connecting ring groove 23 and the connecting groove 24 are used to disperse the raw materials and transport them to the inside of the spoon groove 25, and the spoon groove 25 is used to cooperate with the protrusion 32 to form a plastic spoon.

[0034] In this embodiment, the number of connecting groove 1 22, connecting groove 24 and spoon groove 25 is eight, and the corresponding number of connecting pipe 63, nozzle 1 64, nozzle 2 65, cut-off block 71, inclined push block 75, and through groove 472 is also eight.

[0035] Reference Figure 3 - Figure 12 In a further embodiment, the port of the jet head 64 is aligned with the inside of the connecting groove 22 and is close to the intersection of the connecting groove 22 and the connecting ring groove 23. The cut-off block 71 fits the connection between the connecting groove 24 and the spoon groove 25. The port of the jet head 65 is aligned with the inside of the connecting groove 24. The connection between the injection hole 21 and the connecting groove 22 is used to cooperate with the through groove 472.

[0036] In this embodiment, when the external air pump continues to inject gas into the interior of the docking tube 61, the gas will be ejected from the inside of the nozzle 1 64 and the nozzle 2 65. Since the cut-off block 71 has cut off the material at this time, the gas can only diffuse inside the connecting groove 1 22, the connecting ring groove 23 and the connecting groove 2 24, and then the airflow will carry the material through the through groove 472 into the interior of the collecting groove 473 for collection, and the airflow will be discharged from the micropores opened on the inner wall of the collecting groove 473, so that the part that was originally waste can be transported to the collecting groove 473 for crushing.

[0037] Reference Figure 6 and Figure 10 One end of the butt joint pipe 61 is connected to a distribution ring 62, and a connecting pipe 63 is distributed around the periphery of the distribution ring 62. Both the nozzle 1 64 and the nozzle 2 65 are connected to the connecting pipe 63. The butt joint pipe 61, the distribution ring 62 and the connecting pipe 63 are all located inside the mold mechanism 3. Both the nozzle 1 64 and the nozzle 2 65 are unidirectional nozzles.

[0038] In this embodiment, when the air pump changes from jetting to suction, the raw material can be prevented from being sucked in, and when the male mold plate 31 and the female mold 2 are closed to each other and the material is injected, the material is prevented from entering.

[0039] Reference Figure 1-Figure 2 In a further embodiment, an injection head 11 is provided at the output end of the injection molding machine 1 , and a port of the injection head 11 fits the injection hole 21 .

[0040] In this embodiment, the injection molding machine 1 is a plastic molding machine in the prior art. It is the main molding equipment for making plastic products of various shapes from thermoplastic plastics or thermosetting plastics using plastic molding molds. It injects the plasticized molten state, i.e., viscous flow state, into the mold through the thrust of a screw or a plunger, and obtains the product after solidification and shaping; the injection head 11 here is aligned with the injection hole 21 opened in the mother mold 2, so that it is injection molded into a plastic spoon.

[0041] The working principle of the present invention is as follows: When the external PLC controls the operation of the injection molding machine 1, the raw material in the feed port can be heated and squeezed, and injected into the interior of the female mold 2 through the injection head 11 through the conveying mechanism. At this time, since the female mold 2 and the male mold plate 31 are completely closed, the molten raw material will pass through the injection hole 21, the connecting groove 1 22, the connecting ring groove 23 and the connecting groove 2 24 in sequence and evenly enter the interior of the spoon groove 25. Then, by closing the insulation pipe inside the female mold 2, the cooling pipe is started, so that the molten raw material can be cooled and molded; When the cooling pipe is started, the PLC controller will operate the external air pump and the drive motor 41 located inside the installation slot 33, and the air pump will inject gas into the unit assembly 8 and the drive mechanism 5 in sequence through the hose, and continue to inject gas into the guide mechanism 6; When the air pump is connected to the end of the unit assembly 8 through the hose, the push rod of the unit assembly 8 pushes the connecting frame 76, and then the linkage ring 74 starts to rotate, so that the receiving block 72 can move with the cutting block 71 to the connection between the spoon groove 25 and the connecting groove 24 through the inclined push block 75, thereby cutting off the molten raw material and preventing the raw material from continuously entering the inside of the spoon groove 25, thereby ensuring the molding quality and appearance consistency of the plastic spoon; When the air pump is connected to the connection port 51 through a hose and gas is injected into the connection port 51, the gas on one side of the piston 55 increases, so that the piston 55 brings the transmission rod 54 close to the connection block 476, so that the connection block 476 brings the collection plate 471 and is inserted into the injection hole 21, and the through groove 472 is aligned with the intersection of the injection hole 21 and the connection groove 1 22, so that the molten raw materials in the connection groove 1 22, the connection ring groove 23 and the connection groove 24 can enter the collection groove 473 for collection; When the air pump is connected to the port of the butt joint pipe 61 through a hose and injects gas into it, the gas will be evenly dispersed to the inside of the connecting pipe 63 through the distribution ring 62, and ejected from the inside of the nozzle head 1 64 and the nozzle head 2 65. Since the nozzle of the nozzle head 1 64 faces the intersection of the connecting groove 1 22 and the connecting ring groove 23, and the nozzle head 2 65 is located in the connecting groove 24 at the cutoff point of the cutoff block 71, it can not only accelerate the molten raw material to enter the inside of the collecting tank 473, but also cool this part of the raw material, and then cooperate with the operation of the driving motor 41 to crush the waste material entering the inside of the collecting tank 473; After the plastic spoon in the spoon groove 25 is completely cooled and formed, the PLC controller can operate the air pump to suck air so that the cut-off block 71 is no longer pushed by the inclined push block 75, and then shrinks to the inside of the annular groove 34, and the collecting plate 471 shrinks to the inside of the installation slot 33, and then the separate discharge air hole in the mother mold 2 will discharge the formed material; When the collecting plate 471 is retracted to the inside of the installation slot 33, the connecting rod 46 will squeeze the airbag 45, so that the valve plate 43 opens the port of the conveying slot 474, so that the crushed waste can be collected into the collecting box 38 through the conveying slot 474 and the connecting slot 37 in turn. Therefore, there is no need to manually remove the waste, which reduces costs, manual intervention and human errors, improves product quality and production safety, and facilitates recycling.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A molding device for processing a plastic spoon, comprising an injection molding machine (1) for injection molding, characterized in that: The injection molding machine (1) is provided with a mounting plate 1 (12) and a mounting plate 2 (13) on the outside, a mother mold (2) is installed on one side of the mounting plate 1 (12), a mold mechanism (3) is installed on one side of the mounting plate 2 (13), and a collecting mechanism (4), a driving mechanism (5), a flow guiding mechanism (6), a cutting mechanism (7) and a unit assembly (8) are provided inside the mold mechanism (3); The mold mechanism (3) comprises a male mold plate (31) and a collection box (38); the male mold plate (31) comprises a positive plate, a connecting plate, a connecting plate and a bottom plate which are connected to each other; a protrusion (32) is installed on one side of the positive plate; the protrusion (32) is used to cooperate with the female mold (2); the positive plate is used to cooperate with the female mold (2) to close the material; and the collection box (38) is used to collect the crushed waste; The collecting mechanism (4) comprises a collecting assembly (47), a crushing blade (42) and a valve plate (43), wherein the collecting assembly (47) is used to collect solidified waste materials, the crushing blade (42) is used to crush the waste materials, and the valve plate (43) is used to release the waste materials; The driving mechanism (5) comprises a cylinder (53) and a transmission rod (54), and the driving mechanism (5) is used to push the collecting component (47) to block the injection hole (21) opened in the mother mold (2); The flow guiding mechanism (6) comprises a butt joint (61), a first nozzle (64) and a second nozzle (65), wherein the first nozzle (64) and the second nozzle (65) are used to transport the waste raw materials during melting and also to assist cooling; The cutting mechanism (7) comprises a cutting block (71) and a linkage ring (74); the cutting block (71) is used to cut off the raw material, and the linkage ring (74) is used to cooperate with the unit assembly (8); The unit assembly (8) is completely identical to the driving mechanism (5), and the unit assembly (8) is used to drive the linkage ring (74) to rotate.

2. A plastic spoon forming device according to claim 1, characterized in that: The center of the mold mechanism (3) is provided with an installation slot (33), an annular groove (34) is provided between the main plate and the connecting plate, one side of the main plate is provided with plug holes (35) and air holes (36) that are evenly distributed around the main plate, the linkage ring (74) is movably connected to the inside of the annular groove (34), the cut-off block (71) is slidably connected to the inside of the plug hole (35), the ports of the jet head 1 (64) and the jet head 2 (65) are located at the air hole (36), and the collecting mechanism (4) is slidably connected to the inside of the installation slot (33).

3. A plastic spoon forming device according to claim 1, characterized in that: The connecting plate is provided with a connecting groove (37), the collecting assembly (47) comprises a collecting plate (471) and a connecting block (476), a through groove (472) is provided on the periphery of the collecting plate (471), a collecting groove (473) is provided at the center of the collecting plate (471), the crushing blade (42) is located inside the collecting groove (473), a conveying groove (474) is provided on the inner wall of the collecting groove (473), and the conveying groove (474) cooperates with the connecting groove ( 37), the valve plate (43) is slidably connected to the inner wall of the conveying groove (474), a driving motor (41) is installed on one side of the collecting plate (471), the crushing blade (42) is installed on the output end of the driving motor (41), two plug-in rods (46) are plugged into one side of the collecting plate (471), one end of the plug-in rod (46) is fixedly connected to the inner wall of the installation slot (33), and one end of the transmission rod (54) is located on the inner side of the connecting block (476).

4. A plastic spoon forming device according to claim 3, characterized in that: The connecting block (476) is fixedly connected to one side of the collecting plate (471), and an end cover (475) is installed on the other side of the collecting plate (471). The connecting block (476) is provided with an inclined groove (477). One end of the transmission rod (54) is fixedly connected to an insertion rod (56), and the insertion rod (56) is slidably connected to the inside of the inclined groove (477). An elastic member (44) is installed on one side of the valve plate (43). Air bags (45) are arranged at both ends of the valve plate (43), one end of the air bag (45) is in contact with the valve plate (43), and the other end of the air bag (45) is used to cooperate with the insertion rod (46).

5. A plastic spoon forming device according to claim 1, characterized in that: One end of the transmission rod (54) is inserted into the interior of the cylinder (53), a piston (55) is slidably connected to the interior of the cylinder (53), the piston (55) is fixedly connected to one end of the transmission rod (54), and the cylinder (53) is provided with a connecting pipe (52) communicating with one end of the transmission rod (54), and one end of the connecting pipe (52) is provided with a connection port (51).

6. A plastic spoon forming device according to claim 1, characterized in that: One side of the linkage ring (74) is fixedly connected to inclined surface push blocks (75) that are evenly distributed around the linkage ring; one end of the truncation block (71) located inside the mold mechanism (3) is fixedly connected to a receiving block (72); the receiving block (72) cooperates with the inclined surface push block (75); a second elastic member (73) is arranged above the receiving block (72); a side of the linkage ring (74) away from the inclined surface push block (75) is fixedly connected to a connecting frame (76); the connecting frame (76) is provided with a vertical slot (77); and a driving rod of the unit assembly (8) is located inside the vertical slot (77).

7. A plastic spoon forming device according to claim 1, characterized in that: An injection hole (21) for injection molding is provided at the center of the mother mold (2), and a connecting groove (22), a connecting ring groove (23), a connecting groove (24) and a spoon groove (25) are provided on the periphery of the injection hole (21) and are interconnected. The connecting groove (22), the connecting ring groove (23) and the connecting groove (24) are used to disperse raw materials and transport them to the inside of the spoon groove (25), and the spoon groove (25) is used to cooperate with the protrusion (32) to form a plastic spoon.

8. A plastic spoon forming device according to claim 7, characterized in that: The port of the jet head 1 (64) is aligned with the inside of the connecting groove 1 (22) and is close to the intersection of the connecting groove 1 (22) and the connecting ring groove (23); the truncation block (71) fits the connection between the connecting groove 2 (24) and the spoon groove (25); the port of the jet head 2 (65) is aligned with the inside of the connecting groove 2 (24); and the connection between the injection hole (21) and the connecting groove 1 (22) is used to cooperate with the through groove (472).

9. A plastic spoon forming device according to claim 1, characterized in that: One end of the butt joint pipe (61) is connected to a distribution ring (62), a connection pipe (63) is distributed around the periphery of the distribution ring (62), the nozzle head 1 (64) and the nozzle head 2 (65) are both connected to the connection pipe (63), the butt joint pipe (61), the distribution ring (62) and the connection pipe (63) are all located inside the mold mechanism (3), and the nozzle head 1 (64) and the nozzle head 2 (65) are both unidirectional nozzles.

10. A plastic spoon forming device according to claim 1, characterized in that: An injection head (11) is provided at the output end of the injection molding machine (1), and a port of the injection head (11) fits into the injection hole (21).

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