A two-color injection molding mechanism for air purifier plastic parts

Abstract

The present invention relates to the technical field of two-color injection molding of plastic parts, and provides a two-color injection molding mechanism for plastic parts of an air purifier, comprising a workbench, wherein a plastic discharge component is arranged at the top of the workbench, a collecting box and a processing component are arranged at one side of the bottom end of the workbench, a guide plate is fixedly connected to the side of the collecting box close to the workbench, and the guide plate runs through the workbench; in the present invention, a sealed state is set for the part of the injection molding box located outside, and the thermoplastic plastic is discharged into the injection molding box through a feeding pipe for cooling and fixing, during which the gas emitted cannot be emitted to the outside, and can only enter the inside of the workbench through the bottom end of the injection molding box, thereby avoiding the emission of harmful gases to cause damage to the human body, and then starting the air pump, and the air intake pipe generates negative pressure, so that the gas inside the workbench enters the air intake pipe, and then enters the processing box through the exhaust pipe, and the activated carbon plate performs multi-layer adsorption treatment on the entering gas, and the activated carbon plate can be disassembled and replaced after a long period of adsorption treatment.

Description

Technical Field

[0001] The invention relates to the technical field of two-color injection molding of plastic parts, and in particular to a two-color injection molding mechanism for a plastic part of an air purifier. Background Art

[0002] In the process of processing the plastic parts of the air purifier, an injection molding machine is used. The injection molding machine is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It can heat the plastic, apply high pressure to the molten plastic, make it eject and fill the mold cavity, and obtain the product after cooling and solidification. Two-color injection molding refers to the injection molding of two different materials into the same set of molds to form injection molded parts composed of two materials.

[0003] However, in the prior art, thermoplastic plastics are placed in a storage box, and one thermoplastic plastic is discharged into a mold through a discharge pipe. After the first thermoplastic plastic is cooled and fixed, the second thermoplastic plastic is added and cooled and solidified. The injection-molded plastic is then taken out to present plastic parts of two colors. However, during the injection molding process, the plastic is in a viscous state before injection molding and emits heat, which contains some harmful gases, so these gases can cause damage to the human body. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that during the injection molding period, the plastic before injection molding is in a viscous state and emits hot air, in which some harmful gases may cause damage to the human body.

[0005] In order to achieve the above-mentioned objectives, the present invention adopts the following technical scheme: a two-color injection molding mechanism for plastic parts of an air purifier, comprising a workbench, a plastic discharge assembly is arranged at the top of the workbench, a collection box and a processing assembly are arranged on one side of the bottom end of the workbench, a guide plate is fixedly connected to the side of the collection box close to the workbench, the guide plate passes through the workbench and is fixedly connected to the workbench, a track groove is provided on the guide plate at the movement track of the support rod, a unloading structure is arranged inside the workbench, the unloading structure comprises a support column, an unloading assembly and a third gas rod, a rotating drum is rotatably connected to the middle part of the support column, a fixed rod is fixedly connected to the top annular array of the rotating drum, a support disk is rotatably connected to the top of the support column, the support disk is fixedly connected to the fixed rod, and an injection molding assembly is arranged in the top annular array of the support disk.

[0006] As a preferred embodiment, the unloading assembly includes a first connecting head, the first connecting head is fixed in a circular array at the top and bottom ends of the outer wall of the rotating drum, the middle part of the first connecting head at the bottom end is rotatably connected to a spring tube, the top end of the spring tube is rotatably connected to a second connecting head, the top end of the second connecting head is rotatably connected to a support rod, the bottom end of the support rod is fixedly connected to the first connecting head at the top end, the middle part of the support rod is rotatably connected to a third connecting head, the bottom end of the third connecting head is fixedly connected to a recessed block, a groove is provided in the middle part of the bottom end of the recessed block, the third gas rod is started, the third gas rod is shortened to pull the recessed block, the recessed block pulls the support rod through the third connecting head, the support rod drives the second template to deflect downward with the first connecting head at the top end as the axis, so that the second template is separated from the injection molding box, which is convenient for unloading the plastic parts.

[0007] As a preferred embodiment, the top end of the support rod is rotatably connected to a fourth connecting head, the top end of the fourth connecting head is fixedly connected to the second template, the radial side of the top end of the support rod is fixedly connected to a support plate, the top end of the support plate is fixedly connected to a third spring, the top end of the third spring is fixedly connected to the second template, the second template is located inside the guide plate, the support rod drives the second template to deflect downward with the first connecting head at the top as the axis, so that the second template is separated from the injection molding box, when the second template drops to the bottom, the protrusion at the bottom end of the second template contacts the guide plate, so that the second template gradually deflects to an inclined state, so that when the plastic parts are removed, they will not stay on the second template.

[0008] As a preferred embodiment, the third gas rod is fixed on one side of the workbench close to the collection box, and the top of the third gas rod is fixedly connected with a cross bar, which is engaged with the groove. When the third gas rod is started, it gradually shortens and drives the cross bar to move downward. The cross bar squeezes the concave block to make the unloading assembly work.

[0009] As a preferred embodiment, the processing assembly includes a processing box, which is fixed on one side of the collecting box and fixedly connected to the workbench, the top of the processing box is fixedly connected to an air pump, one side of the air pump is fixedly connected to an intake pipe and an exhaust pipe, the end of the intake pipe away from the air pump is provided with two branch pipes, and the two branch pipes are fixedly passed through the workbench and the collecting box respectively, the top and bottom ends of the interior of the processing box are fixedly connected to guide rails, the middle part of the guide rails is slidably connected to an activated carbon plate, the part of the injection molding box located outside is set in a sealed state, the thermoplastic plastic is discharged into the injection molding box through a feeding pipe for cooling and fixing, during which the emitted gas cannot be emitted to the outside and can only enter the interior of the workbench through the bottom end of the injection molding box, thereby avoiding the emission of harmful gases and causing damage to the human body, then starting the air pump, the intake pipe generates negative pressure, so that the gas inside the workbench enters the intake pipe, and then enters the processing box through the exhaust pipe, the activated carbon plate performs multi-layer adsorption treatment on the incoming gas, and the activated carbon plate can be disassembled and replaced for long-term adsorption treatment.

[0010] As a preferred embodiment, the injection molding assembly includes an injection molding box, the injection molding box annular array is fixed on the top of the supporting plate, the injection molding box is slidably connected to the second template, the two sides of the top of the injection molding box are fixedly connected with a first gas rod, the bottom end of the first gas rod penetrates the injection molding box, the bottom end of the first gas rod is fixedly connected to the first template, the first template is slidably connected to the injection molding box, the middle part of the top of the injection molding box is fixedly connected with a feed pipe, the feed pipe penetrates the injection molding box and the first template, the feed pipe is slidably connected to the first template, and a gas blocking member is provided on the top of the feed pipe, the plastic is discharged into the injection molding box through the discharge pipe, and the first color plastic is injected, the thermoplastic plastic is cooled and fixed in the injection molding box, during which the gas emitted cannot be emitted to the outside, and can only enter the interior of the workbench through the bottom end of the injection molding box, thereby avoiding the emission of harmful gases and causing damage to the human body, after cooling and molding, start the first gas rod, the first gas rod drives the first template to extrude the plastic parts onto the guide plate, and then enters the collection box through the guide plate for collection.

[0011] As a preferred embodiment, the gas blocking member includes a connecting block, which is fixed at the top end of the feed pipe. A docking groove is provided in the middle of the connecting block, and the docking groove is communicated with the feed pipe. Inclined grooves are provided on both sides of the connecting block. The docking grooves are sealed with the docking joint to prevent harmful gases from being discharged. The inclined grooves can limit the docking joint so that it can rise stably during extrusion.

[0012] As a preferred embodiment, an arc groove is provided on a side of the connecting block which is different from the inclined groove, and a first spring is arranged inside the arc groove, one end of the first spring is fixedly connected to the arc groove, and the other end of the arc groove is fixedly connected to a push block, the top of the push block is fixedly connected to a baffle, and the middle part of the baffle close to the push block is fixedly connected to a deflection rod, and the bottom end of the deflection rod is rotatably connected to the connecting block, and the injection molding box drives the connecting block to rotate and gradually contacts the docking joint, and the docking joint is squeezed at the inclined groove, and the docking joint is gradually moved upward under pressure to squeeze the telescopic cylinder, and the telescopic cylinder moves to squeeze the second spring, and the second spring is compressed, and when the docking joint rises to the position of the baffle, the baffle is squeezed, and the baffle is deflected with the deflection rod as the axis after being subjected to pressure, and the deflection of the deflection rod drives the push block to slide in the arc groove, so that the first spring is squeezed.

[0013] As a preferred embodiment, the plastic discharge assembly includes a storage box, which is fixed on the top of the workbench, and the bottom end of the storage box is fixedly connected with a discharge pipe, which passes through the top of the workbench and is fixedly connected to the workbench, and the bottom end of the discharge pipe is fixedly connected with a fixed cylinder, and the interior of the fixed cylinder is fixedly connected with a second spring, and the bottom end of the second spring is fixedly connected with a telescopic cylinder, when the docking joint moves to the docking groove, the elastic force of the second spring pushes the docking joint into the connecting block, and the docking joint contacts with the interior of the docking groove to achieve sealing, and when the discharge is completed, the injection box continues to rotate, and after the docking groove is separated from the docking joint, the first spring pushes the baffle to seal and cover the docking groove, thereby avoiding the discharge of hot gas generated by the discharged thermoplastic plastic.

[0014] As a preferred embodiment, the bottom end of the telescopic cylinder is fixedly connected with a docking joint, the bottom end of the telescopic cylinder is fixedly connected with a docking joint, the docking joint is slidably connected with the inclined groove and the docking groove, the telescopic cylinder drives the docking joint to move, and the docking joint gradually contacts with the inclined groove, so that the docking joint moves upward to squeeze the telescopic cylinder, and when the docking joint is located at the docking groove, the docking joint enters the interior of the docking groove to achieve docking sealing.

[0015] The beneficial effects of the present invention are as follows:

[0016] In the present invention, the portion of the injection molding box located outside is set in a sealed state, and the thermoplastic plastic is discharged into the injection molding box through a feed pipe for cooling and fixing. During this period, the gas emitted cannot be emitted to the outside, and can only enter the inside of the workbench through the bottom end of the injection molding box. Therefore, it can be avoided that harmful gases are emitted to cause damage to the human body. Subsequently, the air pump is started, and the suction pipe generates negative pressure, so that the gas inside the workbench enters the suction pipe, and then enters the treatment box through the exhaust pipe. The activated carbon plate performs multi-layer adsorption treatment on the incoming gas. After long-term adsorption treatment, the activated carbon plate can be disassembled and replaced.

[0017] In the present invention, when the driving structure arranged inside the support column drives the support plate to rotate, it also drives the injection molding box to rotate. When the injection molding box drives the connecting block to rotate and gradually contacts the docking joint, the docking joint is squeezed against the inclined groove. The docking joint is gradually moved upward by the pressure to squeeze the telescopic cylinder. The telescopic cylinder moves to squeeze the second spring. The second spring is compressed. When the docking joint rises to the position of the baffle, it squeezes the baffle. After the baffle is subjected to pressure, it deflects with the deflection rod as the axis. The deflection of the deflection rod drives the push block to slide in the arc groove, so that the first spring is squeezed. When the docking joint moves to the docking groove, the elastic force of the second spring pushes the docking joint into the connecting block. The docking joint and the internal contact of the docking groove are sealed. When the discharge is completed, the injection molding box continues to rotate, and after the docking groove is separated from the docking joint, the first spring pushes the baffle to seal and block the docking groove, thereby preventing the discharge of hot air generated by the discharged thermoplastic plastic.

[0018] In the present invention, when unloading, the injection molding box rotates to the third gas rod. At this time, the cross bar is located inside the concave block and at the top of the groove. Then the third gas rod is started, the third gas rod is shortened to pull the concave block, and the concave block pulls the support rod through the third connecting head. The support rod drives the second template to deflect downward with the first connecting head at the top as the axis, so that the second template is separated from the injection molding box. When the second template drops to the bottom, the protrusion at the bottom end of the second template contacts the guide plate, so that the second template gradually deflects to an inclined state, and then the first gas rod is started. The first gas rod pushes the first template to squeeze the plastic parts, and the plastic parts fall onto the guide plate and are discharged and collected along the guide plate. Therefore, through multiple settings and injection molding boxes, continuous injection molding and unloading can be achieved, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a two-color injection molding mechanism for a plastic part of an air purifier provided by the present invention;

[0020] Figure 2 A schematic cross-sectional structure diagram of a two-color injection molding mechanism for a plastic part of an air purifier provided by the present invention;

[0021] Figure 3 A schematic diagram of the structure of a telescopic unloading assembly of a two-color injection molding mechanism for a plastic part of an air purifier provided by the present invention;

[0022] Figure 4 A schematic cross-sectional structure diagram of a workbench of a two-color injection molding mechanism for a plastic part of an air purifier provided by the present invention;

[0023] Figure 5 A schematic diagram of the structure of a discharge assembly of a two-color injection molding mechanism for a plastic part of an air purifier provided by the present invention;

[0024] Figure 6 A two-color injection molding mechanism for a plastic part of an air purifier provided by the present invention Figure 4A is an enlarged structural diagram;

[0025] Figure 7 A schematic diagram of the structure of an injection molding assembly of a two-color injection molding mechanism for a plastic part of an air purifier provided by the present invention;

[0026] Figure 8 A schematic diagram of the structure of a gas blocking member of a two-color injection molding mechanism for a plastic part of an air purifier provided by the present invention;

[0027] Fig. 9 A schematic diagram of the structure of an odor collection and processing component of a two-color injection molding mechanism for a plastic part of an air purifier provided by the present invention;

[0028] Legend:

[0029] 1. Workbench; 21. Injection molding box; 22. First gas rod; 23. First template; 24. Feed pipe; 25. Connecting block; 251. Docking groove; 252. Inclined groove; 253. Arc groove; 254. First spring; 255. Push block; 256. Baffle; 257. Deflection rod; 31. Storage box; 32. Discharge pipe; 33. Fixed cylinder; 34. Second spring; 35. Telescopic cylinder; 36. Docking head; 4. Collection box; 41. Guide plate; 51. Processing box; 52. Air pump; 53 , intake pipe; 54, exhaust pipe; 55, guide rail; 56, activated carbon plate; 61, support column; 611, rotating drum; 612, fixing rod; 613, support plate; 62, first connecting head; 621, spring tube; 622, second connecting head; 623, support rod; 624, third connecting head; 625, concave block; 626, groove; 627, fourth connecting head; 628, second template; 629, support plate; 6210, third spring; 63, third gas rod; 631, cross bar. DETAILED DESCRIPTION

[0030] 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.

[0031] See also Figure 1 - Fig. 9The present invention provides a technical solution: a two-color injection molding mechanism for plastic parts of an air purifier, comprising a workbench 1, a plastic discharge assembly is arranged at the top of the workbench 1, a collecting box 4 and a processing assembly are arranged on one side of the bottom of the workbench 1, a guide plate 41 is fixedly connected to the side of the collecting box 4 close to the workbench 1, the guide plate 41 passes through the workbench 1 and is fixedly connected to the workbench 1, a track groove is opened on the guide plate 41 at the motion track of the support rod 623, a discharging structure is arranged inside the workbench 1, and the discharging structure includes a support column 61 , a discharge assembly and a third gas rod 63, the middle part of the support column 61 is rotatably connected to a rotating drum 611, the top annular array of the rotating drum 611 is fixedly connected to a fixed rod 612, the top of the support column 61 is rotatably connected to a support plate 613, the support plate 613 is fixedly connected to the fixed rod 612, the top annular array of the support plate 613 is provided with an injection molding assembly, the discharge assembly includes a first connector 62, the first connector 62 is fixed in an annular array at the top and bottom of the outer wall of the rotating drum 611, and the middle part of the bottom first connector 62 A spring tube 621 is rotatably connected, the top of the spring tube 621 is rotatably connected to a second connector 622, the top of the second connector 622 is rotatably connected to a support rod 623, the bottom end of the support rod 623 is fixedly connected to the top first connector 62, the middle of the support rod 623 is rotatably connected to a third connector 624, the bottom end of the third connector 624 is fixedly connected to a concave block 625, a groove 626 is provided in the middle of the bottom end of the concave block 625, the top of the support rod 623 is rotatably connected to a fourth connector 627, The top of the fourth connecting head 627 is fixedly connected to the second template 628, the radial side of the top of the support rod 623 is fixedly connected to the support plate 629, the top of the support plate 629 is fixedly connected to the third spring 6210, the top of the third spring 6210 is fixedly connected to the second template 628, the second template 628 is located inside the guide plate 41, the third gas rod 63 is fixed on one side of the workbench 1 close to the collection box 4, the top of the third gas rod 63 is fixedly connected to the cross bar 631, and the cross bar 631 is clamped with the groove 626.

[0032] In this embodiment, a driving structure is provided inside the support column 61, and the driving structure includes a motor and a gear set. The driving structure inside the support column 61 is started to drive the support plate 613 to rotate, and the support plate 613 drives the injection molding box 21 to rotate, and the support plate 613 drives the rotating drum 611 to rotate through the fixed rod 612, and the rotating drum 611 drives the unloading assembly to rotate. When unloading, the injection molding box 21 rotates to the third gas rod 63, and at this time, the cross bar 631 is located inside the concave block 625 and at the top of the groove 626. Then the third gas rod 63 is started, and the third gas rod 63 is shortened to pull the concave block 625, and the concave block 625 is connected to the third connector. 624 pulls the support rod 623, and the support rod 623 drives the second template 628 to deflect downward with the first connecting head 62 at the top as the axis, so that the second template 628 is separated from the injection box 21. When the second template 628 drops to the bottom, the protrusion at the bottom of the second template 628 contacts the guide plate 41, so that the second template 628 gradually deflects to an inclined state, and then the first gas rod 22 is started. The first gas rod 22 pushes the first template 23 to squeeze the plastic parts, and the plastic parts fall onto the guide plate 41 and are discharged and collected along the guide plate 41. Therefore, through multiple settings and the injection box 21, continuous injection molding and unloading can be achieved, thereby improving work efficiency.

[0033] like Figure 1 - Fig. 9 As shown, the processing assembly includes a processing box 51, which is fixed on one side of the collecting box 4 and fixedly connected to the workbench 1. An air pump 52 is fixedly connected to the top of the processing box 51, and an air intake pipe 53 and an exhaust pipe 54 are fixedly connected to one side of the air pump 52. The air intake pipe 53 is provided with two branch pipes at one end away from the air pump 52, and the two branch pipes are fixedly passed through the workbench 1 and the collecting box 4 respectively. The top and bottom ends of the interior of the processing box 51 are fixedly connected with guide rails 55, and an activated carbon plate 56 is slidably connected to the middle of the guide rails 55.

[0034] In the present embodiment, the portion of the injection molding box 21 located outside is set in a sealed state, and the thermoplastic plastic is discharged into the injection molding box 21 through the feed pipe 24 for cooling and fixing. During this period, the emitted gas cannot be emitted to the outside, and can only enter the interior of the workbench 1 through the bottom end of the injection molding box 21, thereby preventing harmful gases from emitting and causing damage to the human body. Subsequently, the air pump 52 is started, and the suction pipe 53 generates a negative pressure, so that the gas inside the workbench 1 enters the suction pipe 53, and then enters the treatment box 51 through the exhaust pipe 54. The activated carbon plate 56 performs multi-layer adsorption treatment on the incoming gas. After long-term adsorption treatment, the activated carbon plate 56 can be disassembled and replaced.

[0035] like Figure 1 - Fig. 9As shown, the injection molding assembly includes an injection molding box 21, the injection molding box 21 is fixed in an annular array on the top of the support plate 613, the injection molding box 21 is slidably connected to the second template 628, the first gas rod 22 is fixedly connected to both sides of the top of the injection molding box 21, the bottom end of the first gas rod 22 passes through the injection molding box 21, the bottom end of the first gas rod 22 is fixedly connected to the first template 23, the first template 23 is slidably connected to the injection molding box 21, and the middle part of the top of the injection molding box 21 is fixedly connected to the feed pipe 24, and the feed pipe 24 passes through The injection molding box 21 and the first template 23, the feed pipe 24 is slidably connected to the first template 23, the top of the feed pipe 24 is provided with a gas blocking member, the gas blocking member includes a connecting block 25, the connecting block 25 is fixed to the top of the feed pipe 24, the middle of the connecting block 25 is provided with a docking groove 251, the docking groove 251 is communicated with the feed pipe 24, both sides of the connecting block 25 are provided with oblique grooves 252, and the side of the connecting block 25 different from the oblique groove 252 is provided with an arc groove 253, the arc groove 253 A first spring 254 is arranged inside, one end of the first spring 254 is fixedly connected to the arc groove 253, the other end of the arc groove 253 is fixedly connected to a push block 255, the top of the push block 255 is fixedly connected to a baffle 256, the middle part of the baffle 256 close to the push block 255 is fixedly connected to a deflection rod 257, the bottom end of the deflection rod 257 is rotatably connected to the connecting block 25, and the plastic discharge assembly includes a storage box 31, which is fixed to the top of the workbench 1. The storage box 31 The bottom end of the discharge pipe 32 is fixedly connected, the discharge pipe 32 passes through the top of the workbench 1 and is fixedly connected to the workbench 1, the bottom end of the discharge pipe 32 is fixedly connected to the fixed cylinder 33, the interior of the fixed cylinder 33 is fixedly connected to the second spring 34, the bottom end of the second spring 34 is fixedly connected to the telescopic cylinder 35, the bottom end of the telescopic cylinder 35 is fixedly connected to the docking joint 36, the bottom end of the telescopic cylinder 35 is fixedly connected to the docking joint 36, and the docking joint 36 is slidably connected to the inclined groove 252 and the docking groove 251.

[0036] In this embodiment, when the driving structure provided inside the support column 61 drives the support plate 613 to rotate, the injection molding box 21 is driven to rotate. When the injection molding box 21 drives the connecting block 25 to rotate and gradually contacts the docking joint 36, the docking joint 36 squeezes the inclined groove 252. The docking joint 36 is subjected to pressure and gradually moves upward to squeeze the telescopic cylinder 35. The telescopic cylinder 35 moves to squeeze the second spring 34. The second spring 34 is compressed. When the docking joint 36 rises to the position of the baffle 256, the baffle 256 is squeezed. After the baffle 256 is subjected to pressure, it deflects with the deflection rod 257 as the axis. The deflection of the deflection rod 257 drives the push block 255 to slide in the arc groove 253, so that the first spring 254 is squeezed ... When the first and second springs 254 move to the docking groove 251, the elastic force of the second spring 34 pushes the docking joint 36 into the connecting block 25, and the docking joint 36 contacts with the inside of the docking groove 251 to achieve sealing. After the discharge is completed, the injection molding box 21 continues to rotate, and after the docking groove 251 is separated from the docking joint 36, the first spring 254 pushes the baffle plate 256 to seal and block the docking groove 251, thereby preventing the discharge of hot air generated by the discharged thermoplastic plastic. The first gas rod 22 is started, and the first gas rod 22 pushes the first template 23 to squeeze the plastic parts, and the plastic parts fall onto the guide plate 41 and are discharged and collected along the guide plate 41. Therefore, through multiple settings and the injection molding box 21, continuous injection molding and unloading can be achieved, thereby improving work efficiency.

[0037] Working principle: First, start the driving structure inside the support column 61 to drive the support plate 613 to rotate, the support plate 613 drives the injection molding box 21 to rotate, and the support plate 613 drives the rotating cylinder 611 to rotate through the fixed rod 612. When the injection molding box 21 drives the connecting block 25 to rotate and gradually contacts the docking joint 36, the docking joint 36 squeezes the inclined groove 252. The docking joint 36 is subjected to pressure and gradually moves upward to squeeze the telescopic cylinder 35. The telescopic cylinder 35 moves to squeeze the second spring 34. The second spring 34 is compressed. When the docking joint 36 rises to the position of the baffle 256, it squeezes the baffle 256. After the baffle 256 is subjected to pressure, it deflects with the deflection rod 257 as the axis. The deflection of the deflection rod 257 drives the push block 255 to move in an arc. The first spring 254 is squeezed when the butt joint 36 moves to the butt joint groove 251, and the elastic force of the second spring 34 pushes the butt joint 36 into the connection block 25. The butt joint 36 contacts the inside of the butt joint groove 251 to achieve sealing. At this time, the plastic is discharged into the injection molding box 21 through the discharge pipe 32, and the first color plastic is injected. The thermoplastic plastic is cooled and fixed in the injection molding box 21. During this period, the gas emitted cannot be emitted to the outside, and can only enter the inside of the workbench 1 through the bottom of the injection molding box 21. Therefore, harmful gas can be avoided from being emitted to cause damage to the human body. Then, the air pump 52 is started, and the suction pipe 53 generates negative pressure, so that the gas inside the workbench 1 enters the suction pipe 53 , and then enters the processing box 51 through the exhaust pipe 54. The activated carbon plate 56 performs multi-layer adsorption treatment on the incoming gas. For long-term adsorption treatment, the activated carbon plate 56 can be removed and replaced. After the first color plastic is discharged, the injection molding box 21 continues to rotate, and after the docking groove 251 is separated from the docking head 36, the first spring 254 pushes the baffle 256 to seal and block the docking groove 251, thereby avoiding the discharge of hot gas generated by the discharged thermoplastic plastic, and driving the injection molding box 21 to move to the second color plastic injection location and repeat the operation. When unloading, the injection molding box 21 rotates to the third gas rod 63. At this time, the cross bar 631 is located inside the concave block 625 and at the top of the groove 626. Then the third gas rod 63 is started, and the first The three gas rods 63 are shortened to pull the recessed block 625, and the recessed block 625 pulls the support rod 623 through the third connecting head 624. The support rod 623 drives the second template 628 to deflect downward with the first connecting head 62 at the top as the axis, so that the second template 628 is separated from the injection box 21. When the second template 628 drops to the bottom, the protrusion at the bottom of the second template 628 contacts the guide plate 41, so that the second template 628 gradually deflects to an inclined state, and then the first gas rod 22 is started. The first gas rod 22 pushes the first template 23 to squeeze the plastic parts, and the plastic parts fall onto the guide plate 41 and are discharged and collected along the guide plate 41. Therefore, through multiple settings and the injection box 21, continuous injection molding and unloading can be achieved, thereby improving work efficiency.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A two-color injection molding mechanism for air purifier plastic parts, comprising a workbench (1), characterized in that: A plastic discharge assembly is arranged at the top of the workbench (1), a collecting box (4) and a processing assembly are arranged at one side of the bottom of the workbench (1), a guide plate (41) is fixedly connected to a side of the collecting box (4) close to the workbench (1), the guide plate (41) passes through the workbench (1) and is fixedly connected to the workbench (1), a track groove is provided on the guide plate (41) at the movement track of the support rod (623), a discharge structure is arranged inside the workbench (1), the discharge structure comprises a support column (61), a discharge assembly and a third gas rod (63), a rotating drum (611) is rotatably connected to the middle part of the support column (61), a fixed rod (612) is fixedly connected to the top annular array of the rotating drum (611), a support plate (613) is rotatably connected to the top of the support column (61), the support plate (613) is fixedly connected to the fixed rod (612), an injection molding assembly is arranged at the top annular array of the support plate (613); The injection molding assembly comprises an injection molding box (21), wherein the injection molding box (21) is fixed in an annular array on the top of the support plate (613), the injection molding box (21) is slidably connected to the second template (628), first gas rods (22) are fixedly connected to both sides of the top of the injection molding box (21), the bottom end of the first gas rod (22) passes through the injection molding box (21), the bottom end of the first gas rod (22) is fixedly connected to the first template (23), the first template (23) is slidably connected to the injection molding box (21), a feed pipe (24) is fixedly connected to the middle of the top of the injection molding box (21), the feed pipe (24) passes through the injection molding box (21) and the first template (23), the feed pipe (24) is slidably connected to the first template (23), and a gas blocking member is arranged at the top of the feed pipe (24); The gas blocking member comprises a connecting block (25), the connecting block (25) being fixed to the top end of the feed pipe (24), a docking groove (251) being provided in the middle of the connecting block (25), the docking groove (251) being communicated with the feed pipe (24), and inclined grooves (252) being provided on both sides of the connecting block (25); The connecting block (25) is provided with an arc-shaped groove (253) on one side different from the inclined groove (252); a first spring (254) is arranged inside the arc-shaped groove (253); one end of the first spring (254) is fixedly connected to the arc-shaped groove (253); the other end of the arc-shaped groove (253) is fixedly connected to a push block (255); a baffle (256) is fixedly connected to the top of the push block (255); a deflection rod (257) is fixedly connected to the middle of the baffle (256) on a side close to the push block (255); and the bottom end of the deflection rod (257) is rotatably connected to the connecting block (25); The plastic discharge assembly comprises a material storage box (31), the material storage box (31) is fixed on the top of the workbench (1), the bottom end of the material storage box (31) is fixedly connected to a discharge pipe (32), the discharge pipe (32) passes through the top of the workbench (1) and is fixedly connected to the workbench (1), the bottom end of the discharge pipe (32) is fixedly connected to a fixed cylinder (33), the interior of the fixed cylinder (33) is fixedly connected to a second spring (34), and the bottom end of the second spring (34) is fixedly connected to a telescopic cylinder (35); A butt joint (36) is fixedly connected to the bottom end of the telescopic cylinder (35), and the butt joint (36) is slidably connected to the inclined groove (252) and the butt joint groove (251).

2. The double-color injection molding mechanism for air purifier plastic parts according to claim 1, characterized in that: The unloading assembly comprises a first connecting head (62), wherein the first connecting heads (62) are fixed in a ring array at the top and bottom of the outer wall of the rotating drum (611), the middle part of the first connecting head (62) at the bottom end is rotatably connected to a spring tube (621), the top end of the spring tube (621) is rotatably connected to a second connecting head (622), the top end of the second connecting head (622) is rotatably connected to a support rod (623), the bottom end of the support rod (623) is fixedly connected to the first connecting head (62) at the top end, the middle part of the support rod (623) is rotatably connected to a third connecting head (624), the bottom end of the third connecting head (624) is fixedly connected to a recessed block (625), and a groove (626) is provided in the middle part of the bottom end of the recessed block (625).

3. The double-color injection molding mechanism for air purifier plastic parts according to claim 2, characterized in that: The top end of the support rod (623) is rotatably connected to a fourth connecting head (627), the top end of the fourth connecting head (627) is fixedly connected to a second template (628), a radial side of the top end of the support rod (623) is fixedly connected to a support plate (629), the top end of the support plate (629) is fixedly connected to a third spring (6210), the top end of the third spring (6210) is fixedly connected to the second template (628), and the second template (628) is located inside the guide plate (41).

4. The double-color injection molding mechanism for air purifier plastic parts according to claim 3, characterized in that: The third gas rod (63) is fixed to a side of the workbench (1) close to the collection box (4), and the top end of the third gas rod (63) is fixedly connected to a cross bar (631), and the cross bar (631) is clamped with the groove (626).

5. The double-color injection molding mechanism for air purifier plastic parts according to claim 1, characterized in that: The processing assembly comprises a processing box (51), the processing box (51) being fixed to one side of a collection box (4) and being fixedly connected to a workbench (1); an air pump (52) being fixedly connected to the top of the processing box (51); an air intake pipe (53) and an air exhaust pipe (54) being fixedly connected to one side of the air pump (52); two branch pipes being provided at one end of the air intake pipe (53) away from the air pump (52), and the two branch pipes being fixedly passed through the workbench (1) and the collection box (4) respectively; a guide rail (55) being fixedly connected to the top and bottom of the processing box (51); and an activated carbon plate (56) being slidably connected to the middle of the guide rail (55).

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