Plastic injection molding processing device and method

Abstract

The invention relates to the technical field of plastic injection molding processing, and discloses a plastic injection molding processing device which comprises a mounting base, an operation box and a heating cylinder, the top of the mounting base is fixedly connected with the operation box and a protection box, the interior of the operation box is slidably connected with an upper mold plate, and the interior of the operation box is fixedly connected with a lower mold plate; a protection shell is fixedly connected into the protection box, the top of the protection shell fixedly communicates with a heating cylinder, through cooperative use of the conveying assembly and the cooling assembly, a first motor drives a first driving chain wheel to rotate through a first output shaft, and the first driving chain wheel drives a first driven chain wheel to rotate through a first chain; and a first screw rod drives a second driven chain wheel to rotate through a second driving chain wheel and a second chain, the first screw rod and a second screw rod drive an extrusion screw plate to move, then cooling oil in a first cooling oil tank and a second cooling oil tank enters a circulating pipeline through an oil conveying pipe, and therefore the effect of accelerating forming is achieved.

Description

Technical Field

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

[0002] The injection molding machine has the ability to form plastic products with complex shapes, precise dimensions or dense textures with metal inserts in one go. It is widely used in national defense, electromechanics, automobiles, transportation, building materials, packaging, agriculture, culture, education, health and people's daily life. It is the main molding equipment that heats raw materials such as polystyrene and then uses plastic molding molds to make plastic products of various shapes.

[0003] Publication No. CN117227084B discloses a plastic shell injection molding processing device, including a workbench, on which is provided a lifting and clamping mechanism for automatically removing and collecting the molding mold and a rotating adsorption mechanism for cleaning dust on the surface of the molding mold, and the lifting and clamping mechanism cooperates with the rotating adsorption mechanism.

[0004] Although the above patents and the prior art can automatically and evenly clean the surface of the molding mold before collection and avoid the solidification of the raw materials, after the raw materials enter the molding mold, a certain amount of time is required to cool the raw materials, which will reduce the efficiency of the device during this process. After the raw materials are cooled, the molding mold needs to be opened and the raw materials inside the molding mold need to be taken out. During this process, the production efficiency of the device will be reduced. In the process of taking out, the molded raw materials will stick to each other with the melted raw materials, which will cause defects in the molded raw materials during the taking out process, thereby affecting the use effect of the device. Therefore, we propose a plastic injection molding processing device and method. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a plastic injection molding processing device, which has the advantages of accelerated molding, collection of finished products and easy cutting, and solves the problem that after the raw materials enter the molding mold, it takes a certain amount of time to cool the raw materials, which reduces the use efficiency of the device during this process, and after the raw materials are cooled, it is necessary to open the molding mold and then take the raw materials inside the molding mold, which reduces the production efficiency of the device during this process, and in the process of taking, the molded raw materials will stick to each other with the melted raw materials, which will cause defects in the molded raw materials during the taking process, thereby affecting the use effect of the device.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purposes of accelerating molding, collecting finished products and facilitating cutting, the present invention provides the following technical solutions: A plastic injection molding processing device, comprising: a mounting base, an operating box and a heating cylinder, the top of the mounting base is fixedly connected with a conveying box, an operating box and a protective box, the interior of the operating box is slidably connected with an upper template, the interior of the operating box is fixedly connected with a lower template, the interior of the protective box is fixedly connected with a protective shell, the top of the protective shell is fixedly connected with a heating cylinder, a conveying component is arranged inside the protective box, a cooling component is arranged inside the operating box, a detaching component is arranged on one side of the operating box, a cutting component is arranged inside the lower template, and a replacement component is arranged inside the detaching component, the conveying component can convey the raw materials inside the heating cylinder to the interior of the lower template, the cooling component can quickly cool and demold the raw materials inside the lower template, the detaching component can convey the injection molded part inside the lower template to the interior of the conveying box, and the cutting component can prevent the injection molded part and the raw materials from sticking to each other when the detaching component conveys the injection molded part to the interior of the conveying box, thereby affecting the quality of the injection molded part.

[0009] Furthermore, a conveying pipe is fixedly connected to the interior of the protective shell, the conveying pipe is fixedly connected to the heating cylinder, the top of the heating cylinder is fixedly connected to a feed port, and a solenoid valve is provided at the bottom end of the interior of the heating cylinder.

[0010] Furthermore, the conveying assembly includes a first motor fixedly connected to the inside of the protective box, the output end of the first motor is fixedly connected to the first output shaft, the surface of the first output shaft is fixedly connected to an auger, the auger is arranged inside the conveying pipe, one side of the lower template is fixedly connected to the feed pipe, and the feed pipe is fixedly connected to the conveying pipe.

[0011] Furthermore, a first cooling oil tank is provided inside the mounting base, a second cooling oil tank is provided inside the operating box, and the cooling assembly includes a first driving sprocket fixedly connected to the surface of the first output shaft and a first screw rod rotatably connected to the inside of the mounting base, a first driven sprocket and a second driving sprocket are fixedly connected to the surface of the first screw rod, and transmission is performed between the first driving sprocket and the first driven sprocket via a first chain.

[0012] Furthermore, the cooling assembly also includes a second screw rotatably connected to the inside of the operating box, the surface of the second screw is fixedly connected to a second driven sprocket, the second driven sprocket and the second driving sprocket are transmitted by a second chain, the surfaces of the first screw and the second screw are threadedly connected to extrusion screw plates, the extrusion screw plates are slidably connected to the inside of the first cooling oil tank and the second cooling oil tank, the first cooling oil tank and the lower template and the second cooling oil tank and the upper template are connected by two oil pipes, and circulation pipes are opened inside the lower template and the upper template.

[0013] Furthermore, one end of the operating box is fixedly connected to a protective shell, and the disengagement assembly includes a second motor fixedly connected to one end of the protective shell, a first rotating rod rotatably connected to the inside of the mounting base, and a third screw rotatably connected to the inner wall of the protective shell, the output end of the second motor is fixedly connected to a second output shaft, the surface of the second output shaft is fixedly connected to a third driving sprocket, the surface of the first rotating rod is fixedly connected to a third driven sprocket and the first gear, the surface of the third screw is provided with a fourth driven sprocket, and the third driving sprocket and the third driven sprocket and the fourth driven sprocket are transmitted through a third chain.

[0014] Furthermore, a screw block is threadedly connected to the surface of the third screw rod, and the screw block is slidably connected to the inside of the operating box. An L-shaped push plate is fixedly connected to the bottom of the screw block. The disengagement assembly also includes a blocking plate slidably connected to the inside of the lower template, and a groove is provided on one side of the blocking plate. A plurality of teeth are fixedly connected to the inner wall of the groove, and the first gear is meshed with the blocking plate for transmission through the plurality of teeth.

[0015] Furthermore, the cutting assembly includes a second gear fixedly connected to the surface of the first rotating rod and a slide plate slidably connected to the inside of the lower template, the bottom of the slide plate is fixedly connected to a toothed plate, and the top of the slide plate is fixedly connected to a cutting knife.

[0016] Furthermore, the replacement assembly includes a conductive ring arranged on the surface of the third screw, an electromagnetic ring fixedly connected to the inside of the fourth driven sprocket, and a magnetic block slidably connected to the inside of the fourth driven sprocket, the electromagnetic ring is slidably connected to the surface of the conductive ring, a plurality of fixing holes are opened on the surface of the third screw, and a fixing rod matching the shape of the plurality of fixing holes is fixedly connected to the surface of the magnetic block.

[0017] The present invention also provides a plastic injection molding method, which specifically comprises the following steps:

[0018] Step 1: Put the raw materials needed for the injection molding into the heating cylinder, and heat and melt the raw materials needed for the injection molding through the heating cylinder;

[0019] Step 2: The raw materials required for the injection molded parts are melted and enter the interior of the conveying component, and the conveying component conveys the raw materials to the interior of the upper mold plate and the lower mold plate;

[0020] Step 3: When the conveying component is in operation, the cooling component starts to operate, so that the cooling component cools down the raw materials inside the upper template and the lower template;

[0021] Step 4: After the injection molded part is cooled down, the separation component is started, and then the replacement component is started. The separation component removes the obstruction of the lower template. At the same time, the separation component drives the cutting component to start operating, so that the cutting component cuts off the connection between the injection molded part and the raw material;

[0022] Step 5: At the same time, the separation component moves the injection molded part out of the upper mold plate and the lower mold plate and into the interior of the conveying box.

[0023] (III) Beneficial effects

[0024] Compared with the prior art, the present invention provides a plastic injection molding device having the following beneficial effects:

[0025] 1. The plastic injection molding processing device and method cooperate with the conveying component and the cooling component. When the heated raw material enters the conveying pipe, the first motor is started, and the first motor drives the auger and the first driving sprocket to rotate through the first output shaft. The first driving sprocket drives the first driven sprocket to rotate through the first chain, so that the first screw drives the second driven sprocket to rotate through the second driving sprocket and the second chain, and the first screw and the second screw drive the extrusion screw plate to move, so that the cooling oil inside the first cooling oil tank and the second cooling oil tank enters the inside of the circulation pipe through the oil pipe, and then the injection molded parts inside the upper template and the lower template are cooled, thereby achieving the effect of accelerating molding.

[0026] 2. The plastic injection molding processing device and method start the second motor by cooperating with the disengagement component and the exchange component. The second motor drives the third driving sprocket to rotate through the second output shaft. The third driving sprocket drives the third driven sprocket and the fourth driven sprocket to rotate through the third chain, so that the first rotating rod drives the first gear to rotate, and the first gear drives the blocking plate to descend through a plurality of teeth. Then the exchange component is started to drive the third screw to rotate, and then the screw block drives the upper template to move through the L-shaped push plate, so that the upper template drives the injection molded part to move to the inside of the conveyor box, thereby achieving the effect of collecting the finished products.

[0027] 3. The plastic injection molding processing device and method cooperate with the disengagement component and the cutting component. When the first rotating rod rotates, the first rotating rod drives the tooth plate to rise through the second gear, so that the tooth plate drives the slide plate to slide inside the lower mold plate, and then the slide plate drives the cutting knife to cut the raw material, thereby achieving the effect of easy cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the protection box of the present invention;

[0030] Figure 3 It is a schematic diagram of the three-dimensional structure of the conveying component and the cooling component of the present invention;

[0031] Figure 4 This is a schematic diagram of the three-dimensional structure of the operating box of the present invention;

[0032] Figure 5 This is a schematic diagram of the cutaway three-dimensional structure of the operating box of the present invention;

[0033] Figure 6 It is a schematic diagram of the three-dimensional structure of the separation component of the present invention;

[0034] Figure 7 This is a schematic diagram of the three-dimensional structure of the lower template of the present invention;

[0035] Figure 8 This is a schematic diagram of the three-dimensional structure of the lower template of the present invention from another viewing angle;

[0036] Fig. 9 This is a schematic diagram of the bottom template structure of the present invention;

[0037] Fig.10 It is a schematic diagram of the three-dimensional structure of the cutting assembly of the present invention;

[0038] Fig.11 It is a schematic diagram of the three-dimensional structure of the upper template of the present invention;

[0039] Fig.12 This is a schematic diagram of the three-dimensional structure of the third screw of the present invention;

[0040] Fig.13 It is a schematic diagram of the three-dimensional structure of the replacement component of the present invention.

[0041] In the figure: 1. mounting base; 11. first cooling oil tank; 12. conveying box; 13. operating box; 131. upper template; 132. lower template; 133. second cooling oil tank; 134. protective shell; 2. protective box; 21. protective shell; 211. conveying pipe; 22. heating cylinder; 221. feed port; 3. conveying assembly; 31. first motor; 32. first output shaft; 321. auger; 33. conveying pipe; 4. cooling assembly; 41. first driving sprocket; 411. first chain; 42. first screw; 421. first driven sprocket; 422. second driving sprocket; 423. second chain; 43. second screw; 431. second driven chain wheel; 432, extrusion screw plate; 44, oil pipeline; 45, circulation pipeline; 5, disengagement component; 51, second motor; 52, second output shaft; 521, third driving sprocket; 522, third chain; 53, first rotating rod; 531, third driven sprocket; 532, first gear; 54, blocking plate; 541, slotting; 542, teeth; 55, third screw; 551, fourth driven sprocket; 552, screw block; 553, L-shaped push plate; 6, cutting component; 61, second gear; 62, slide plate; 621, tooth plate; 622, cutting knife; 7, replacement component; 71, conductive ring; 72, electromagnetic ring; 73, magnetic block; 731, fixing rod. DETAILED DESCRIPTION

[0042] 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.

[0043] For specific embodiment 1, please refer to Figures 1 to 8A plastic injection molding device comprises: a mounting base 1, an operating box 13 and a heating cylinder 22, the top of the mounting base 1 is fixedly connected with a conveying box 12, an operating box 13 and a protective box 2, an upper template 131 is slidably connected inside the operating box 13, a lower template 132 is fixedly connected inside the operating box 13, a protective shell 21 is fixedly connected inside the protective box 2, a heating cylinder 22 is fixedly connected to the top of the protective shell 21, a conveying component 3 is arranged inside the protective box 2, a cooling component 4 is arranged inside the operating box 13, a separation component 5 is arranged on one side of the operating box 13, a cutting component 6 is arranged inside the lower template 132, a replacement component 7 is arranged inside the separation component 5, the conveying component 3 can convey the raw materials inside the heating cylinder 22 to the inside of the lower template 132, and the cooling component 4 can quickly cool and demold the raw materials inside the lower template 132 , the separation component 5 can transport the injection molded parts formed inside the lower template 132 to the inside of the conveying box 12, and the cutting component 6 can prevent the injection molded parts and the raw materials from sticking to each other when the separation component 5 transports the injection molded parts to the inside of the conveying box 12, thereby affecting the quality of the injection molded parts. The inside of the protective shell 21 is fixedly connected with a conveying pipe 211, and the conveying pipe 211 is fixedly connected with the heating cylinder 22. The top of the heating cylinder 22 is fixedly connected with a feed port 221, and the bottom end of the heating cylinder 22 is provided with a solenoid valve. The conveying component 3 includes a first motor 31 fixedly connected to the inside of the protective box 2, and the output end of the first motor 31 is fixedly connected with a first output shaft 32, and the surface of the first output shaft 32 is fixedly connected with an auger 321, and the auger 321 is arranged in the inside of the conveying pipe 211. One side of the lower template 132 is fixedly connected with a conveying pipe 33, and the conveying pipe 33 is fixedly connected with the conveying pipe 211;

[0044] It should be noted that a heating layer is provided inside the heating cylinder 22, and a blower is provided on the surface of the heating cylinder 22;

[0045] The raw materials enter the interior of the heating cylinder 22 through the feed port 221, and are processed by the heating layer and the blower. After the raw materials are heated, the solenoid valve is opened to allow the raw materials in the heating cylinder 22 to enter the conveying pipe 211. When the heated raw materials enter the conveying pipe 211, the first motor 31 is started, and the first motor 31 drives the auger 321 to rotate through the first output shaft 32, so that the auger 321 drives the raw materials through the conveying pipe 33 into the interior of the upper template 131 and the lower template 132, thereby realizing the conveying of the raw materials;

[0046] For specific embodiment 2, please refer to Figures 1 to 9 According to a plastic injection molding device provided in the first specific embodiment, this embodiment provides a further technical solution:

[0047] The mounting base 1 is provided with a first cooling oil tank 11 inside, the operating box 13 is provided with a second cooling oil tank 133 inside, the cooling assembly 4 includes a first driving sprocket 41 fixedly connected to the surface of the first output shaft 32 and a first screw 42 rotatably connected to the inside of the mounting base 1, the surface of the first screw 42 is fixedly connected to a first driven sprocket 421 and a second driving sprocket 422, the first driving sprocket 41 and the first driven sprocket 421 are driven by a first chain 411, the cooling assembly 4 also includes a second screw 43 rotatably connected to the inside of the operating box 13, the second screw 43 The surface of the surface is fixedly connected with a second driven sprocket 431, and the second driven sprocket 431 and the second driving sprocket 422 are driven by a second chain 423. The surfaces of the first screw 42 and the second screw 43 are both threadedly connected with an extrusion screw plate 432, and the extrusion screw plate 432 is slidably connected to the inside of the first cooling oil tank 11 and the second cooling oil tank 133. The first cooling oil tank 11 and the lower mold plate 132 and the second cooling oil tank 133 and the upper mold plate 131 are both connected through two oil delivery pipes 44, and the lower mold plate 132 and the upper mold plate 131 are both provided with a circulation pipe 45;

[0048] It should be noted that the two oil pipes 44 located at the top of the upper template 131 are bellows, and when the upper template 131 drives the oil pipes 44 to move, the oil pipes 44 will not be damaged;

[0049] When the injection molded part needs to be cooled, the first motor 31 drives the first driving sprocket 41 to rotate through the first output shaft 32, and the first driving sprocket 41 drives the first driven sprocket 421 to rotate through the first chain 411, so that the first screw 42 drives the second driven sprocket 431 to rotate through the second driving sprocket 422 and the second chain 423, so that the first screw 43 and the second screw 42 drive the extrusion screw plate 432 to move, and then the cooling oil inside the first cooling oil tank 11 and the second cooling oil tank 133 enters the inside of the circulation pipeline 45 through the oil delivery pipe 44, and then the injection molded parts inside the upper template 131 and the lower template 132 are circulated and cooled;

[0050] For specific embodiment 3, please refer to Figures 1 to 13 According to a plastic injection molding device provided in the second specific embodiment, this embodiment provides a further technical solution:

[0051] One end of the operating box 13 is fixedly connected to a protective shell 134, and the disengagement component 5 includes a second motor 51 fixedly connected to one end of the protective shell 134, a first rotating rod 53 rotatably connected to the inside of the mounting base 1, and a third screw 55 rotatably connected to the inner wall of the protective shell 134. The output end of the second motor 51 is fixedly connected to a second output shaft 52, and the surface of the second output shaft 52 is fixedly connected to a third driving sprocket 521, and the surface of the first rotating rod 53 is fixedly connected to a third driven sprocket 531 and a first gear 532. The surface of the third screw 55 is provided with a fourth driven sprocket 551, and the third driving sprocket 521 and the third driven sprocket 531 and the fourth driven sprocket 551 are transmitted through a third chain 522, and the surface of the third screw 55 is threadedly connected to a screw block 552, and the screw block 552 slides Connected to the inside of the operation box 13, the bottom of the screw block 552 is fixedly connected with an L-shaped push plate 553, the disengagement component 5 also includes a blocking plate 54 slidably connected to the inside of the lower template 132, a slot 541 is opened on one side of the blocking plate 54, and a plurality of teeth 542 are fixedly connected to the inner wall of the slot 541, and the first gear 532 is meshed with the blocking plate 54 through the plurality of teeth 542. The replacement component 7 includes a conductive ring 71 arranged on the surface of the third screw rod 55, an electromagnetic ring 72 fixedly connected to the inside of the fourth driven sprocket 551, and a magnetic block 73 slidably connected to the inside of the fourth driven sprocket 551, the electromagnetic ring 72 is slidably connected to the surface of the conductive ring 71, a plurality of fixing holes are opened on the surface of the third screw rod 55, and a fixing rod 731 adapted to the shape of the plurality of fixing holes is fixedly connected to the surface of the magnetic block 73;

[0052] It should be noted that a transport assembly is provided inside the conveying box 12, and the transport assembly is composed of a third motor, a second rotating rod, a rotating roller and a conveyor belt. The second rotating rod is driven to rotate by the third motor, and the second rotating rod drives the conveyor belt to rotate through the rotating roller, so that the conveyor belt drives the molded injection molded parts to move;

[0053] When the injection molded parts need to be collected, the second motor 51 is started, and the second motor 51 drives the third driving sprocket 521 to rotate through the second output shaft 52, and the third driving sprocket 521 drives the third driven sprocket 531 and the fourth driven sprocket 551 to rotate through the third chain 522, so that the first rotating rod 53 drives the first gear 532 to rotate, and the first gear 532 drives the blocking plate 54 to descend through a plurality of teeth 542, and then the conductive ring 71 is energized to make the electromagnetic ring 72 generate magnetism, so that the electromagnetic ring 72 drives the magnetic block 73 to move, so that the fixing rod 731 on the surface of the magnetic block 73 enters the fixing hole on the surface of the third screw rod 55, so that the fourth driven sprocket 551 drives the third screw rod 55 to rotate, and then the screw block 552 drives the upper template 131 to move through the L-shaped push plate 553, so that the upper template 131 drives the injection molded parts to move to the inside of the conveying box 12, and the molded injection molded parts are moved by the transport assembly inside the conveying box 12, and then the injection molded parts are collected;

[0054] For specific example 4, please refer to Figures 1 to 10 According to a plastic injection molding device provided in the specific embodiment 3, this embodiment provides a further technical solution:

[0055] The cutting assembly 6 includes a second gear 61 fixedly connected to the surface of the first rotating rod 53 and a slide plate 62 slidably connected to the inside of the lower template 132, a tooth plate 621 is fixedly connected to the bottom of the slide plate 62, and a cutting knife 622 is fixedly connected to the top of the slide plate 62;

[0056] It should be noted that the slide plate 62 is slidably connected to the interior of the lower mold plate 132 and is located at the bottom of one end of the feed pipe 33;

[0057] When it is necessary to cut the injection molded part from the raw material, when the first rotating rod 53 rotates, the first rotating rod 53 drives the tooth plate 621 to rise through the second gear 61, so that the tooth plate 621 drives the slide plate 62 to slide inside the lower template 132, and then the slide plate 62 drives the cutting knife 622 to cut the raw material, so as to avoid affecting the molding effect of the injection molded part when the molded injection molded part is taken out later;

[0058] Specific embodiment 5, the present invention also provides a plastic injection molding method, the plastic injection molding method specifically comprises the following steps:

[0059] Step 1: Put the raw materials needed for the injection molding into the heating cylinder 22, and heat and melt the raw materials needed for the injection molding through the heating cylinder 22;

[0060] Step 2: The raw materials required for the injection molded parts are melted and enter the interior of the conveying component 3, and the conveying component 3 conveys the raw materials to the interior of the upper mold plate 131 and the lower mold plate 132;

[0061] Step 3, when the conveying component 3 is in operation, the cooling component 4 starts to operate, so that the cooling component 4 cools down the raw materials inside the upper template 131 and the lower template 132;

[0062] Step 4: After the injection molded part is cooled down, the separation component 5 is started, and then the replacement component 7 is started. The separation component 5 removes the obstruction of the lower template 132. At the same time, the separation component 5 drives the cutting component 6 to start operating, so that the cutting component 6 cuts off the connection between the injection molded part and the raw material;

[0063] Step 5: At the same time, the separation component 5 moves the injection molded part out of the upper mold plate 131 and the lower mold plate 132 and into the interior of the conveying box 12.

[0064] Working principle: When in use, the raw material enters the interior of the heating cylinder 22 through the feed port 221, and the raw material is processed by the heating layer and the blower. After the raw material is heated, the solenoid valve is opened to allow the raw material inside the heating cylinder 22 to enter the conveying pipe 211. When the heated raw material enters the conveying pipe 211, the first motor 31 is started, and the first motor 31 drives the auger 321 to rotate through the first output shaft 32, so that the auger 321 drives the raw material through the conveying pipe 33 into the interior of the upper template 131 and the lower template 132, thereby realizing the conveying of the raw material. When the injection molded part needs to be cooled, the first The motor 31 drives the first driving sprocket 41 to rotate through the first output shaft 32, and the first driving sprocket 41 drives the first driven sprocket 421 to rotate through the first chain 411, so that the first screw 42 drives the second driven sprocket 431 to rotate through the second driving sprocket 422 and the second chain 423, so that the first screw 43 and the second screw 42 drive the extrusion screw plate 432 to move, and then the cooling oil inside the first cooling oil tank 11 and the second cooling oil tank 133 enters the inside of the circulation pipeline 45 through the oil delivery pipe 44, and then the injection molded parts inside the upper template 131 and the lower template 132 are circulated and cooled. When the injection molded parts are collected, the second motor 51 is started, and the second motor 51 drives the third active sprocket 521 to rotate through the second output shaft 52, and the third active sprocket 521 drives the third driven sprocket 531 and the fourth driven sprocket 551 to rotate through the third chain 522, so that the first rotating rod 53 drives the first gear 532 to rotate, and the first gear 532 drives the blocking plate 54 to descend through a plurality of teeth 542, and then the conductive ring 71 is energized to make the electromagnetic ring 72 generate magnetism, and then the electromagnetic ring 72 drives the magnetic block 73 to move, so that the fixed rod 731 on the surface of the magnetic block 73 enters the fixed rod 73 on the surface of the third screw rod 55. In the fixed hole, the fourth driven sprocket 551 drives the third screw 55 to rotate, and then the screw block 552 drives the upper template 131 to move through the L-shaped push plate 553, so that the upper template 131 drives the injection molded parts to move to the inside of the conveying box 12. At the same time, when the first rotating rod 53 rotates, the first rotating rod 53 drives the tooth plate 621 to rise through the second gear 61, so that the tooth plate 621 drives the slide plate 62 to slide inside the lower template 132, and then the slide plate 62 drives the cutting knife 622 to cut the raw materials, and the molded injection molded parts are moved through the transportation assembly inside the conveying box 12, and then the injection molded parts are collected.

[0065] 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 plastic injection molding device, comprising: The mounting base (1), the operating box (13) and the heating cylinder (22) are characterized in that: the top of the mounting base (1) is fixedly connected with a conveying box (12), an operating box (13) and a protection box (2); the interior of the operating box (13) is slidably connected with an upper template (131); the interior of the operating box (13) is fixedly connected with a lower template (132); the interior of the protection box (2) is fixedly connected with a protective shell (21); the top of the protective shell (21) is fixedly connected with a heating cylinder (22); the interior of the protection box (2) is provided with a conveying component (3); the interior of the operating box (13) is provided with a cooling component (4); a side of the operating box (13) is provided with a detaching component (5); the interior of the lower template (132) is provided with a cutting component (6); the interior of the detaching component (5) is provided with a replacement component (7); The conveying component (3) can convey the raw materials inside the heating cylinder (22) to the inside of the lower mold plate (132); the cooling component (4) can quickly cool and demould the raw materials inside the lower mold plate (132); the separation component (5) can convey the injection molded parts formed inside the lower mold plate (132) to the inside of the conveying box (12); and the cutting component (6) can prevent the injection molded parts and the raw materials from sticking to each other when the separation component (5) conveys the injection molded parts to the inside of the conveying box (12), thereby affecting the quality of the injection molded parts.

2. A plastic injection molding device according to claim 1, characterized in that: The protective shell (21) is fixedly connected to a delivery pipe (211) inside, the delivery pipe (211) is fixedly connected to a heating cylinder (22), the top of the heating cylinder (22) is fixedly connected to a feed port (221), and a solenoid valve is provided at the bottom end of the interior of the heating cylinder (22).

3. A plastic injection molding device according to claim 2, characterized in that: The conveying assembly (3) comprises a first motor (31) fixedly connected to the inside of the protection box (2); the output end of the first motor (31) is fixedly connected to a first output shaft (32); the surface of the first output shaft (32) is fixedly connected to an auger (321); the auger (321) is arranged inside the conveying pipe (211); one side of the lower template (132) is fixedly connected to a material conveying pipe (33); the material conveying pipe (33) is fixedly connected to the conveying pipe (211).

4. A plastic injection molding device according to claim 3, characterized in that: A first cooling oil tank (11) is disposed inside the mounting base (1), a second cooling oil tank (133) is disposed inside the operating box (13), the cooling assembly (4) comprises a first driving sprocket (41) fixedly connected to the surface of the first output shaft (32) and a first screw rod (42) rotatably connected inside the mounting base (1), a first driven sprocket (421) and a second driving sprocket (422) are fixedly connected to the surface of the first screw rod (42), and the first driving sprocket (41) and the first driven sprocket (421) are transmitted via a first chain (411).

5. A plastic injection molding device according to claim 4, characterized in that: The cooling assembly (4) also includes a second screw (43) rotatably connected to the inside of the operating box (13); a second driven sprocket (431) is fixedly connected to the surface of the second screw (43); the second driven sprocket (431) and the second driving sprocket (422) are driven by a second chain (423); the surfaces of the first screw (42) and the second screw (43) are both threadedly connected with an extrusion screw plate (432); the extrusion screw plate (432) is slidably connected to the inside of the first cooling oil tank (11) and the second cooling oil tank (133); the first cooling oil tank (11) and the lower mold plate (132) and the second cooling oil tank (133) and the upper mold plate (131) are both connected by two oil delivery pipes (44); and the lower mold plate (132) and the upper mold plate (131) are both provided with a circulation pipe (45).

6. A plastic injection molding device according to claim 1, characterized in that: One end of the operation box (13) is fixedly connected to a protective shell (134); the disengagement assembly (5) comprises a second motor (51) fixedly connected to one end of the protective shell (134); a first rotating rod (53) rotatably connected to the inside of the mounting base (1); and a third screw rod (55) rotatably connected to the inner wall of the protective shell (134); the output end of the second motor (51) is fixedly connected to a second output shaft (52); the surface of the second output shaft (52) is fixedly connected to a third driving sprocket (521); the surface of the first rotating rod (53) is fixedly connected to a third driven sprocket (531) and a first gear (532); the surface of the third screw rod (55) is provided with a fourth driven sprocket (551); the third driving sprocket (521) and the third driven sprocket (531) and the fourth driven sprocket (551) are transmitted through a third chain (522).

7. A plastic injection molding device according to claim 6, characterized in that: The surface of the third screw rod (55) is threadedly connected to a screw block (552), and the screw block (552) is slidably connected to the inside of the operating box (13). The bottom of the screw block (552) is fixedly connected to an L-shaped push plate (553). The disengagement component (5) also includes a blocking plate (54) slidably connected to the inside of the lower template (132), and a groove (541) is formed on one side of the blocking plate (54), and a plurality of teeth (542) are fixedly connected to the inner wall of the groove (541), and the first gear (532) is meshed with the blocking plate (54) through the plurality of teeth (542) for transmission.

8. A plastic injection molding device according to claim 6, characterized in that: The cutting assembly (6) comprises a second gear (61) fixedly connected to the surface of the first rotating rod (53) and a slide plate (62) slidably connected to the inside of the lower template (132), the bottom of the slide plate (62) is fixedly connected to a tooth plate (621), and the top of the slide plate (62) is fixedly connected to a cutting knife (622).

9. A plastic injection molding device according to claim 6, characterized in that: The exchange assembly (7) comprises a conductive ring (71) arranged on the surface of the third screw rod (55), an electromagnetic ring (72) fixedly connected to the inside of the fourth driven sprocket (551), and a magnetic block (73) slidably connected to the inside of the fourth driven sprocket (551), wherein the electromagnetic ring (72) is slidably connected to the surface of the conductive ring (71), a plurality of fixing holes are formed on the surface of the third screw rod (55), and a fixing rod (731) having a shape matching that of the plurality of fixing holes is fixedly connected to the surface of the magnetic block (73).

10. A plastic injection molding method, using a plastic injection molding device as claimed in any one of claims 1 to 9, the plastic injection molding method specifically comprising the following steps: Step 1: Put the raw materials required for the injection molding into the interior of the heating cylinder (22), and heat and melt the raw materials required for the injection molding through the heating cylinder (22); Step 2: The raw materials required for the injection molded parts are melted and then enter the interior of the conveying component (3), and the conveying component (3) conveys the raw materials to the interior of the upper mold plate (131) and the lower mold plate (132); Step 3, when the conveying component (3) is in operation, the cooling component (4) starts to operate, so that the cooling component (4) cools down the raw materials inside the upper mold plate (131) and the lower mold plate (132); Step 4: After the injection molded part is cooled, the separation component (5) is started, and then the replacement component (7) is started. The separation component (5) removes the obstruction of the lower template (132). At the same time, the separation component (5) drives the cutting component (6) to start operation, so that the cutting component (6) cuts off the connection between the injection molded part and the raw material; Step 5: At the same time, the separation component (5) moves the injection molded part out of the interior of the upper mold plate (131) and the lower mold plate (132) and into the interior of the conveying box (12).

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