A molding device for processing plastic spoons

Abstract

The present invention relates to the field of injection molding technology, and specifically discloses a molding device for processing plastic spoons, including an injection molding machine for injection molding, wherein a mounting plate 1 and a mounting plate 2 are provided on the outside of the injection molding machine, a mother mold is installed on one side of the mounting plate 1, and a mold mechanism is installed on one side of the mounting plate 2. The present invention can cut off, guide, collect and crush the waste part during the injection molding process through the mutual cooperation of the mother mold, mold mechanism, collection mechanism, drive mechanism, diversion mechanism, cut-off mechanism and unit components, which not only reduces the cost of post-processing as well as manual intervention and human errors, but also improves the quality of the product and the safety of production. At the same time, the collection mechanism cooperates with the mold mechanism to automatically recycle and crush the waste material for easy reuse. The cut-off mechanism accurately controls the amount of raw materials to avoid excessive interference of raw materials in the spoon groove, ensuring the molding quality and appearance consistency of the plastic spoon.

Description

Technical Field

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

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

[0003] In a Chinese patent publication numbered CN221089846U, a mold for processing plastic spoons is mentioned, comprising a plastic spoon mold, a spoon-shaped cavity, and a diversion cavity, as well as a cutting piece, a push block a, and a push block b. The back of the plastic spoon mold is bolted to a back plate, and the plastic spoon mold is provided with a diversion cavity on the side away from the back plate. The spoon-shaped cavity is provided with multiple spoon-shaped cavities, which are equidistantly spaced along the periphery of the diversion cavity. The end of the spoon-shaped cavity communicates with the diversion cavity, and push blocks a and b are inserted into the inner wall of the diversion cavity and the inner wall of the spoon-shaped cavity, respectively. This provides a set of molds for processing plastic spoons. By providing 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. Push blocks a and b are used to push the cut plastic spoon and the plastic structure in the diversion cavity out of the mold, respectively, to achieve autonomous unloading of the plastic spoon after molding, greatly improving the efficiency of plastic spoon processing.

[0004] The existing plastic spoon processing molding device consists of two devices, an injection molding machine and a molding mold. When in use, the injection molding machine heats the raw material and transports it to the mold, which is then extruded and molded by the two molds. In order to improve production efficiency, the female mold usually has multiple spoon-shaped grooves arranged in a circular array and connected by a connecting groove. Therefore, when the male and female molds are fitted and the injection molding process is carried out, the raw material will flow evenly into 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. This not only increases the complexity and cost of subsequent processing, but also causes material waste. Summary of the Invention

[0005] The object of the present invention is to provide a forming device for processing a plastic spoon to solve the problems existing in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] 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 provided on the outside of the injection molding machine, a female mold is installed on one side of the first mounting plate, and a mold mechanism is installed on one side of the second mounting plate, and a collection mechanism, a driving mechanism, a diversion mechanism, a cut-off mechanism and a unit assembly are provided inside the mold mechanism; the mold mechanism comprises a male mold plate and a collection box, the male mold plate comprises a positive plate, a connecting plate, a connecting plate and a bottom plate that are interconnected, 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 collection box is used to collect the crushed waste material; the collection mechanism comprises a plurality of The invention comprises a collecting assembly, a crushing blade and a valve plate, wherein the collecting assembly is used to collect unsolidified waste materials, the crushing blade is used to crush the waste materials, and the valve plate is used to release the waste materials; the driving mechanism comprises a cylinder and a transmission rod, and the driving mechanism is used to push the collecting assembly to seal the injection hole opened by the mother mold; the diversion mechanism comprises a butt joint, a nozzle one and a nozzle two, and the nozzle one and the nozzle two are used to transport the raw materials discarded during melting and to assist in cooling; the cutting mechanism comprises a cutting block and a linkage ring, wherein the cutting block is used to cut off the raw materials, and the linkage ring is used to cooperate with the unit assembly; the unit assembly is exactly the same as the driving mechanism, and the unit assembly is used to drive the linkage ring to rotate.

[0008] 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, and evenly distributed plug holes and air holes are provided on one side of the main plate. 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 head 1 and the nozzle head 2 are located at the air hole, and the collecting mechanism is slidably connected to the inside of the installation slot.

[0009] Preferably: a connecting groove is provided in the connecting plate, the collecting assembly includes 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.

[0010] 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 the plug rod, the plug rod is slidably connected to the inside of the oblique groove, an elastic part 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 plug rod.

[0011] 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 raw material is provided with a connecting pipe connected to the transmission rod, and one end of the connecting pipe is provided with a connecting port.

[0012] 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 a second elastic member is provided above the receiving block, 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 slot, and the driving rod of the unit assembly is located inside the vertical slot.

[0013] 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.

[0014] Preferably: the port of the jet head 1 is aligned with the connecting groove 1 and is close to the intersection of the connecting groove 1 and the connecting ring groove, the truncation block fits the connection between the connecting groove 2 and the spoon groove, the port of the jet head 2 is aligned with the inside of the connecting groove 2, and the connection between the injection hole and the connecting groove 1 is used to cooperate with the through groove.

[0015] 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 one-way nozzles.

[0016] Preferably, an injection head is provided at the output end of the injection molding machine, and a port of the injection head fits into the injection hole.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention cooperates with each other through the arrangement of the mother mold, mold mechanism, collecting mechanism, driving mechanism, guiding mechanism, cutting mechanism and unit assembly. After 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.

[0019] The present invention cooperates with the mold mechanism through the arrangement of the collection mechanism. After the waste is collected into the collection tray and crushed, the air pump suctions the waste in reverse and the driving mechanism causes the collection assembly to retract into the mold mechanism. During this process, the opening of the valve plate allows the crushed waste to be collected, thereby facilitating later utilization.

[0020] The present invention cooperates with the cut-off mechanism and the unit assembly, so that during the injection molding process, 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

[0021] Figure 1 One of the three-dimensional diagrams of the present invention as a whole;

[0022] Figure 2 A side view of the present invention as a whole;

[0023] Figure 3 Schematic diagram of the structure of the mother mold and mold mechanism of the present invention;

[0024] Figure 4 For the present invention Figure 3 Enlarged view of part A;

[0025] Figure 5 An exploded view of the mold mechanism of the present invention;

[0026] Figure 6 Schematic diagram of the internal structure of the mold mechanism of the present invention;

[0027] Figure 7 is a three-dimensional cross-sectional view of the mold mechanism of the present invention;

[0028] Figure 8 It is a structural diagram of the collecting mechanism and the driving mechanism of the present invention;

[0029] Figure 9 For the present invention Figure 8 Schematic diagram of some structures in ;

[0030] Figure 10 Schematic diagram of the structure of the flow guide mechanism of the present invention;

[0031] Figure 11 It is a structural schematic diagram of the cutting mechanism and unit components of the present invention;

[0032] Figure 12 For the present invention Figure 11 Magnified view of part B.

[0033] In the picture:

[0034] 1. Injection molding machine; 11. Injection molding head; 12. Mounting plate 1; 13. Mounting plate 2;

[0035] 2. Mother mold; 21. Injection hole; 22. Connecting groove 1; 23. Connecting ring groove; 24. Connecting groove 2; 25. Spoon groove;

[0036] 3. Mold mechanism; 31. Male mold plate; 32. Protrusion; 33. Mounting slot; 34. Ring groove; 35. Connecting hole; 36. Air hole; 37. Connecting groove; 38. Collection box;

[0037] 4. Collection mechanism; 41. Drive motor; 42. Crushing blade; 43. Valve plate; 44. Elastic member 1; 45. Airbag; 46. Connecting rod;

[0038] 47. Collection assembly; 471. Collection tray; 472. Through slot; 473. Collection slot; 474. Delivery slot; 475. End cap; 476. Connecting block; 477. Chute;

[0039] 5. Driving mechanism; 51. Connecting port; 52. Connecting pipe; 53. Cylinder; 54. Transmission rod; 55. Piston; 56. Insertion rod;

[0040] 6. Flow guide mechanism; 61. Butt joint; 62. Distribution ring; 63. Connecting pipe; 64. Jet nozzle 1; 65. Jet nozzle 2;

[0041] 7. Cutting mechanism; 71. Cutting block; 72. Attaching block; 73. Elastic member 2; 74. Linking ring; 75. Inclined push block; 76. Connecting frame; 77. Vertical slot;

[0042] 8. Unit components. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0044] Reference Figures 1-12 As 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 1 12 and a mounting plate 2 13 are provided on the outside of the injection molding machine 1, a mother mold 2 is installed on one side of the mounting plate 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 diversion mechanism 6, a cutting mechanism 7 and a unit assembly 8 are provided inside the mold mechanism 3; the injection molding machine 1, the mounting plate 1 12 and the mounting plate 2 13 are all installed on a workbench, and the mounting plate 1 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, thereby allowing the mother mold 2 and the mold mechanism 3 to 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 set on the workbench to connect the drive 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 cooling pipe inside the mother mold 2. The insulation pipe is used to ensure that the raw materials inside it are in a molten state during injection molding. After the raw materials completely fill the spoon groove 25 opened in 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 set outside the injection molding machine 1 to control the entire equipment.

[0045] 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 chassis that are interconnected. 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 chassis are connected by bolts, so as 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 interior of the spoon groove 25, but will not contact and there is a certain gap.

[0046] The collecting mechanism 4 includes a collecting assembly 47, a crushing blade 42 and a valve plate 43. 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.

[0047] The driving mechanism 5 includes a cylinder 53 and a transmission rod 54. The driving mechanism 5 is used to push the collecting assembly 47 to block the injection hole 21 opened by the mother mold 2;

[0048] The flow guide 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 in cooling.

[0049] 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.

[0050] 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.

[0051] Reference Figure 5-Figure 7 In a further embodiment, a mounting slot 33 is provided at the center of the mold mechanism 3, a ring groove 34 is provided between the main plate and the connecting plate, and a side of the main plate is provided with evenly distributed plug holes 35 and air holes 36. The linkage ring 74 is movably connected to the inside of the ring groove 34, the cut-off block 71 is slidably connected to the inside of the plug hole 35, the ports of the nozzle 1 64 and the nozzle 2 65 are located at the air hole 36, and the collecting mechanism 4 is slidably connected to the inside of the mounting slot 33.

[0052] In this embodiment, the installation slot 33 is an installation slot 33 that is formed by the main plate, the connecting plate, the connecting plate and the chassis of the male mold plate 31. The main plate, the connecting plate, the connecting plate and the chassis included in the male mold plate 31 have a pipeline groove inside for installing the guide mechanism 6. The pipeline groove is also interconnected with the air hole 36. Similarly, the male mold plate 31 also has a groove that fits the drive mechanism 5 and the unit component 8.

[0053] Reference Figure 7-Figure 8 In a further embodiment, a connecting groove 37 is provided in the connecting plate, and 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, and 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, and 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, and 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, and the crushing blade 42 is installed on the output end of the driving motor 41. Two plug-in rods 46 are inserted into one side of the collecting plate 471, and one end of the plug-in rod 46 is fixedly connected to the inner wall of the installation slot 33. One end of the transmission rod 54 is located on the inner side of the connecting block 476.

[0054] In this embodiment, the unit assembly 8 is located between the positive disc and the connecting disc, so that it can drive the cutting mechanism 7 located in the annular groove 34; the driving mechanism 5 is located between the connecting disc and the chassis, so that it can drive the collecting mechanism 4 located in the installation slot 33; the collecting box 38 is installed below the positive disc and the connecting disc and faces the connecting slot 37, so that the crushed waste can be collected, and the collected waste can be reused after cleaning and other treatments; when the collecting disc 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 disc. In addition, 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.

[0055] Reference Figure 8-Figure 9 In a further embodiment, a connecting block 476 is fixedly connected to one side of the collection tray 471, and an end cover 475 is installed on the other side of the collection tray 471. The connecting block 476 is provided with an inclined groove 477, and one end of the transmission rod 54 is fixedly connected to the 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, and 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 insertion rod 46.

[0056] In this embodiment, a friction disk is provided at the end cover 475 corresponding to the crushing blade 42, thereby assisting in crushing the material. The end cover 475 is mainly used to facilitate the installation of objects such as the crushing blade 42 and the valve plate 43 after disassembly; limit sliders are provided at both ends of the valve plate 43, and one end of the air bag 45 contacts the limit slider. The interior of the collecting plate 471 is provided with grooves corresponding to the two 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 into the interior of the installation slot 33, the plug-in rod 46 will be passively plugged into the interior 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. At this time, the crushed waste can enter the interior of the conveying slot 474. On the contrary, when the collecting component 47 is extended from the interior 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.

[0057] Reference Figure 8In a further embodiment, one end of the transmission rod 54 is inserted into the interior of the cylinder 53, and 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. One end of the cylinder 53 and the raw material transmission rod 54 are provided with a connecting pipe 52, and one end of the connecting pipe 52 is provided with a connecting port 51.

[0058] 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. On the contrary, 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 makes the through groove 472 of the collecting component 47 just aligned with the connecting groove 22 when it is extended, and the bottom of the conveying groove 474 will just align with the connecting groove 37 when it is retracted.

[0059] Reference Figure 11-Figure 12 In a further embodiment, one side of the linkage ring 74 is fixedly connected to an evenly distributed inclined push block 75, and one end of the truncation block 71 located inside the mold mechanism 3 is fixedly connected to a receiving block 72, which cooperates with the inclined push block 75. An elastic member 2 73 is provided 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. The connecting frame 76 has a vertical slot 77, and the driving rod of the unit assembly 8 is located inside the vertical slot 77.

[0060] 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 truncation 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 truncation block 71 out from the inside of the ring groove 34, and the thickness of the inclined push block 75 is just enough to allow one end of the truncation block 71 to 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 opened 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.

[0061] Reference Figure 3-Figure 12In a further embodiment, an injection hole 21 for injection molding is opened 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 that are interconnected are opened on the periphery of the injection hole 21. The connecting groove 1 22, the connecting ring groove 23 and the connecting groove 2 24 are used to disperse the raw materials and transport them to the inside of the spoon groove 25. The spoon groove 25 is used to cooperate with the protrusion 32 to form a plastic spoon.

[0062] 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, truncation block 71, inclined push block 75, and through groove 472 is also eight.

[0063] Reference Figure 3-Figure 12 In a further embodiment, the port of the nozzle 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 cut-off block 71 fits the connection between the connecting groove 2 24 and the spoon groove 25. The port of the nozzle 2 65 is aligned with the inside of the connecting groove 24. The connection between the injection hole 21 and the connecting groove 1 22 is used to cooperate with the through groove 472.

[0064] 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 head 1 64 and the nozzle head 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 air flow will carry the material through the through groove 472 into the interior of the collecting groove 473 for collection, and the air flow 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.

[0065] 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.

[0066] In this embodiment, when the air pump switches from jetting to suctioning, 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.

[0067] 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 into the injection hole 21 .

[0068] In this embodiment, the injection molding machine 1 is a plastic molding machine in the prior art. It is the main molding equipment for using thermoplastic plastics or thermosetting plastics to form plastic products of various shapes 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 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, thereby forming a plastic spoon during injection molding.

[0069] The working principle of the present invention is as follows:

[0070] When the external PLC controls the operation of the injection molding machine 1, the raw material in the feed port is heated and extruded, and then injected into the interior of the female mold 2 through the injection head 11 via 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 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 activated, so that the molten raw material can be cooled and formed;

[0071] 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. The air pump will sequentially inject gas into the unit assembly 8 and the drive mechanism 5 through the hose, and continuously inject gas into the guide mechanism 6.

[0072] 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, which in turn causes the linkage ring 74 to start rotating. As a result, the receiving block 72 can move the cutting block 71 toward 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 spoon groove 25, thereby ensuring the molding quality and appearance consistency of the plastic spoon.

[0073] When the air pump is connected to the connecting port 51 through a hose and gas is injected into it, the gas on one side of the piston 55 increases, so that the piston 55 and the transmission rod 54 are close to the connecting block 476, so that the connecting block 476 and the collection plate 471 are inserted into the injection hole 21, and the through groove 472 is aligned with the intersection of the injection hole 21 and the connecting groove 1 22, so that the molten raw material in the connecting groove 1 22, the connecting ring groove 23 and the connecting groove 24 can enter the collecting groove 473 for collection.

[0074] When the air pump is connected to the port of the docking tube 61 through a hose and injects gas into it, the gas will be evenly dispersed to the inside of the connecting tube 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 interior of the collection tank 473 but also cool this part of the raw material. Subsequently, the operation of the drive motor 41 is coordinated to crush the waste material entering the collection tank 473.

[0075] After the plastic spoon is completely cooled and formed in the spoon groove 25, 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 into the inside of the annular groove 34, and the collection plate 471 shrinks into the inside of the receiving slot 33. Then, the separate discharge air hole in the mother mold 2 will discharge the formed material.

[0076] 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, thereby allowing the crushed waste to be collected into the collecting box 38 through the conveying slot 474 and the connecting slot 37 in turn. This eliminates the need for manual removal of the waste, reduces costs, manual intervention and human errors, improves product quality and production safety, and facilitates recycling.

[0077] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the 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 guide mechanism (6), a cutoff mechanism (7) and a unit assembly (8) are provided inside the mold mechanism (3); The mold mechanism (3) includes a male mold plate (31) and a collection box (38), wherein the male mold plate (31) includes a positive plate, a connecting plate, a connecting plate and a bottom plate that are connected to each other, a protrusion (32) is installed on one side of the positive plate, and 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 seal the injection hole (21) opened in the mother mold (2); The flow guide mechanism (6) includes a butt joint (61), a nozzle head 1 (64) and a nozzle head 2 (65), wherein the nozzle head 1 (64) and the nozzle head 2 (65) are used to transport the raw materials discarded during melting and also to assist in cooling; The cutting mechanism (7) comprises a cutting block (71) and a linkage ring (74), wherein 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 identical to the driving mechanism (5), and the unit assembly (8) is used to drive the linkage ring (74) to rotate; 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 trough (474), a driving motor (41) is installed on one side of the collecting tray (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 tray (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); 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 the raw materials and transport them to the inside of the spoon groove (25). The spoon groove (25) is used to cooperate with the protrusion (32) to form a plastic spoon. 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 cut-off 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). The connection between the injection hole (21) and the connecting groove 1 (22) is used to cooperate with the through groove (472).

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, and 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 truncation block (71) is slidably connected to the inside of the plug hole (35), the ports of the nozzle head 1 (64) and the nozzle 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. The plastic spoon forming device according to claim 1, 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 provided 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).

4. The 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), and 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). 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).

5. The plastic spoon forming device according to claim 1, characterized in that: One side of the linkage ring (74) is fixedly connected to inclined push blocks (75) that are evenly distributed around it. 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 push block (75). A second elastic member (73) is provided above the receiving block (72). A connecting frame (76) is fixedly connected to the side of the linkage ring (74) away from the inclined push block (75). The connecting frame (76) is provided with a vertical slot (77). The driving rod of the unit assembly (8) is located inside the vertical slot (77).

6. The 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), and a connecting 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 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). The nozzle head 1 (64) and the nozzle head 2 (65) are both one-way nozzles.

7. The 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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