A two-color injection molding machine

Abstract

The present invention relates to the technical field of injection molding machines, and specifically discloses a two-color injection molding machine, including an injection molding machine body; a hopper is detachably mounted on the top of the injection molding machine body; a baffle is fixedly connected to the inner wall of the hopper, and a motor is mounted on the outer wall of the hopper; a first rotating shaft is fixedly connected to the output end of the motor; a mounting block is fixedly connected to the outer wall of the first rotating shaft; a magnetic plate is detachably mounted on the mounting block; a rotating mechanism for dispersing raw materials is provided on the top of the baffle; the first rotating shaft drives the rotating mechanism to rotate; the magnetic plate is driven to rotate by the motor, so that the magnetic plate stirs the raw materials, and the rotating mechanism fully disperses the raw materials, so that the magnetic plate adsorbs iron impurities.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding machines, in particular to a two-color injection molding machine. Background Art

[0002] An injection molding machine is a device that uses a mold to make plastic products from thermoplastics. Compared to ordinary injection molding machines, a two-color injection molding machine has the advantages of being able to automatically insert and remove parts, reducing labor costs, stabilizing the production efficiency of injection molding work, and improving the production capacity of the injection molding machine.

[0003] In the existing technology, most of the large particles mixed in the raw material particles are removed by adding a screening structure inside the hopper of the injection molding machine, but the iron impurities mixed in the raw material particles are not removed, so that the iron impurities mixed in the plastic particles are easy to affect the injection molding work of the injection molding machine. Summary of the Invention

[0004] The present application provides a two-color injection molding machine, which has the effect of adsorbing iron impurities mixed in raw materials, so that the iron impurities are separated from the raw materials, and it is not easy for the iron impurities mixed in the raw materials to affect the injection molding work.

[0005] The present application provides a two-color injection molding machine, which adopts the following technical solutions:

[0006] A two-color injection molding machine includes an injection molding machine body; a hopper is detachably mounted on the top of the injection molding machine body; a baffle is fixedly connected to the inner wall of the hopper, and a motor is mounted on the outer wall of the hopper; a first rotating shaft is fixedly connected to the output end of the motor; a mounting block is fixedly connected to the outer wall of the first rotating shaft; a magnetic plate is detachably mounted on the mounting block; a rotating mechanism for dispersing raw materials is provided on the top of the baffle; and the first rotating shaft drives the rotating mechanism to rotate.

[0007] By adopting the above technical solution, the raw materials put into the hopper are de-ironed; the raw materials are put into the hopper, and the motor is started to drive the first rotating shaft to rotate, so that the magnetic plate installed on the mounting block stirs the raw materials, and the iron impurities in the raw materials are adsorbed on the surface of the magnetic plate through the magnetic effect, and the movement and dispersion of the raw materials are promoted by the rotating mechanism, so that the magnetic plate can better perform the iron absorption work.

[0008] Preferably, a first bevel gear is fixedly connected to the middle of the first rotating shaft; the rotating mechanism includes a second rotating shaft and a plurality of arc plates; the second rotating shaft is rotatably connected to the top of the baffle, and the end of the second rotating shaft away from the baffle is fixedly connected to the second bevel gear; the second bevel gear is meshed with the first bevel gear; a first cavity is provided inside the second rotating shaft; a plurality of the arc plates are fixed to the outer wall of the second rotating shaft, a second cavity is provided inside the arc plate, and a plurality of first air nozzles are fixedly connected to the top of the arc plate; the first cavity is connected to the interior of the second cavity; a plurality of the first air nozzles are connected to the interior of the second cavity; a blower is fixedly connected to the top of the injection molding machine body; the output end of the blower is fixedly connected to an air outlet pipe; the end of the air outlet pipe away from the blower passes through the side wall of the hopper and is fixed to the bottom of the baffle, and the air outlet pipe is connected to the interior of the first cavity.

[0009] By adopting the above technical solution, the magnetic plate is promoted to adsorb iron impurities mixed in the raw materials; when the starting motor drives the first rotating shaft to rotate, the first rotating shaft drives the first bevel gear to rotate, and the first bevel gear is engaged with the second bevel gear, driving the second bevel gear, the second rotating shaft and the arc plate to rotate. During the rotation of the arc plate, the gas ejected by the blower is ejected through the first air nozzle, and the gas ejected from the first air nozzle blows up the raw materials at the bottom, so that the magnetic plate can better adsorb the iron impurities.

[0010] Preferably, a cam is fixedly connected to the outer wall of the second rotating shaft; a pair of jet mechanisms for blowing away the raw materials are provided on the inner wall of the hopper; the jet mechanism includes a fixed block and a T-shaped plate; the fixed block is fixed to the inner wall of the hopper, and a first slide groove is provided inside the fixed block, and a plurality of second jet nozzles are provided on the side wall of the fixed block close to the cam; an air bag is provided inside the first slide groove; the plurality of second jet nozzles are connected to the inside of the air bag; the T-shaped plate is slidably connected to the inside of the first slide groove, and the side wall of the T-shaped plate close to the cam is provided with an arc surface that cooperates with the cam, and the side wall of the T-shaped plate away from the cam is connected to the inner wall of the first slide groove through a spring, and the side wall of the T-shaped plate away from the arc surface is in contact with the air bag.

[0011] By adopting the above technical solution, the movement of raw materials in the hopper is promoted, so that the magnetic plate can better absorb iron impurities; the first rotating shaft drives the cam to rotate during the rotation process, and the cam contacts the arc surface of the T-shaped plate during the rotation process. Through the cooperation of the cam and the arc surface, the T-shaped plate slides along the first slide groove and squeezes the airbag, and the gas inside the airbag is ejected through the second air nozzle to blow the raw materials away, so that the magnetic plate can better absorb iron impurities. When the cam loses contact with the arc surface, the T-shaped plate slides back under the action of the spring, so that the cam can squeeze the T-shaped plate again.

[0012] Preferably, a swing assembly for stirring the raw materials is provided on the side wall of the fixed block; the swing assembly includes a rotating shaft, a spur gear and a rack; the rotating shaft is rotatably connected to the outer wall of the fixed block close to the cam through a bracket, and a pair of swing plates are fixed to the outer wall of the rotating shaft; the spur gear is fixed to the middle part of the rotating shaft; the rack is fixed to the top of the T-shaped plate, and the rack is meshed with the spur gear.

[0013] By adopting the above technical solution, the movement of raw materials in the hopper is further promoted; during the sliding process of the T-shaped plate, the rack slides with the T-shaped plate, and the rack engages with the spur gear. The cooperation of the spur gear and the rack causes the rotating shaft to rotate, thereby causing the swing plate to swing. During the swinging process, the swing plate pushes the raw materials, promoting the movement of the raw materials in the hopper, so that the magnetic plate can better adsorb iron impurities.

[0014] Preferably, a pad is fixed at the corner of the inner wall of the hopper; a screen is detachably mounted on the top of the pad; and a cleaning structure for brushing the screen is provided inside the hopper.

[0015] By adopting the above technical solution, larger particle impurities mixed in the raw materials are screened out to prevent the impurities mixed in the raw materials from affecting the operation of the injection molding machine body, and the screen is cleaned by the provided cleaning mechanism to reduce the possibility of the raw materials clogging the screen, so that the raw materials can enter the hopper smoothly.

[0016] Preferably, the cleaning mechanism includes a first belt, a screw rod, a limit rod and a cleaning brush; the screw rod is rotatably connected to the inner wall of the hopper, the end of the screw rod away from the motor extends out of the hopper, and the end of the screw rod extending out of the hopper is fixedly connected to the first pulley; the end of the first rotating shaft away from the motor extends out of the hopper, and the end of the first rotating shaft extending out of the hopper is fixedly connected to the second pulley; the first belt is sleeved on the first pulley and the second pulley; a slider is sleeved on the outer side wall of the screw rod; the slider and the screw rod are connected by a ball screw nut pair; the cleaning brush is fixed to the top of the slider, and the cleaning brush is in contact with the screen; the limit rod is fixed to the inner wall of the hopper, and the limit rod passes through the slider.

[0017] By adopting the above technical solution, the screen is cleaned and the mesh holes of the screen are not easily clogged; when the motor drives the first rotating shaft to rotate, the screw rod rotates under the drive of the first belt, and when the screw rod rotates, the limit rod limits the slider, so that the slider slides along the screw rod, and the screen is cleaned by the cleaning brush to avoid the raw material particles from clogging the mesh holes of the screen, and the reciprocating cleaning of the screen by the cleaning brush is achieved by controlling the motor to drive the first rotating shaft to rotate forward and reverse.

[0018] Preferably, a second threaded hole is provided on the top of the cushion block; a second through hole is provided at a position of the screen corresponding to the second threaded hole; and a second threaded rod that cooperates with the second threaded hole is provided in the second through hole.

[0019] By adopting the above technical solution, the screen can be installed and fixed on the pad. When fixing the screen, the screen is placed on the pad, and the screen is fixed on the pad through the cooperation of the second threaded rod and the second threaded hole. The installation method is simple and convenient, and it is easy to install and disassemble the screen.

[0020] Preferably, a plurality of first threaded holes are provided on the side wall of the mounting block; a first through hole is provided at a position corresponding to the first threaded hole at the bottom of the magnetic plate; and a first threaded rod cooperating with the first threaded hole is provided in the first through hole.

[0021] By adopting the above technical solution, the installation and disassembly of the magnetic plate on the mounting block can be realized; when installing the magnetic plate, the magnetic plate is installed on the mounting block, and the magnetic plate is fixed on the mounting block through the cooperation of the first threaded rod and the first threaded hole.

[0022] Preferably, a feed port is provided on the top of the injection molding machine body; the feed port is communicated with the interior of the barrel of the injection molding machine body; and the hopper is connected to the feed port via a flange.

[0023] By adopting the above technical solution, the hopper can be installed at the feed port. When the hopper is installed, a fixed connection between the hopper and the feed port is achieved through the flange. The installation method is simple and convenient, and the hopper can be easily disassembled.

[0024] Preferably, a pair of leakage holes are provided on the top of the baffle; a second chute is provided on the inner side wall of the leakage hole, and a groove is provided on the inner side wall of the leakage hole away from the second chute; a plug plate that cooperates with the groove is slidably connected in the second chute.

[0025] By adopting the above technical solution, the raw materials enter the injection molding machine body after the iron removal work; when the magnetic plate adsorbs the iron impurities in the raw materials, the insert plate is pulled out from the second chute, so that the raw materials in the hopper enter the feed port through the leakage hole, and the raw materials enter the injection molding machine body through the feed port.

[0026] In summary, this application has the following beneficial effects:

[0027] 1. When the raw materials enter the hopper, the motor drives the first rotating shaft to rotate, so that the magnetic plate stirs the raw materials in the hopper. The iron impurities in the raw materials are adsorbed on the surface of the magnetic plate under the action of magnetic force. The first rotating shaft drives the first bevel gear to rotate during the rotation process, and the first bevel gear is meshed with the second bevel gear, driving the second rotating shaft and multiple arc plates to rotate. The blower blows air into the first cavity, and the first cavity is connected with the second cavity inside the arc plate, and finally the gas is ejected from the first air nozzle. During the rotation of the arc plate, the gas ejected from the first air nozzle sprays the raw materials inside the hopper, promotes the movement of the raw materials inside the hopper, and causes the magnetic plate to adsorb the iron impurities in the hopper;

[0028] 2. As the second shaft rotates, the cam rotates accordingly. Through the cooperation of the cam and the arc surface, the T-shaped plate squeezes the airbag, and the gas inside the airbag is ejected through the second air nozzle to blow the raw materials away. During the sliding of the T-shaped plate, the rack slides with the T-shaped plate, and the rack meshes with the spur gear. The cooperation of the spur gear and the rack makes the rotating shaft rotate, thereby making the swing plate swing. During the swinging process, the swing plate pushes the raw materials, promoting the movement of the raw materials in the hopper, so that the magnetic plate can better absorb iron impurities;

[0029] 3. A screen is set on the top of the pad to screen large particles of impurities in the raw materials. When the motor drives the first rotating shaft to rotate, the screw rotates driven by the first belt. The slider and the screw are connected by a ball screw nut pair. When the screw rotates, the slider slides along the screw, so that the cleaning brush cleans the screen to prevent the raw material particles from clogging the screen. The motor is controlled to drive the first rotating shaft to rotate forward and reverse to achieve reciprocating cleaning of the screen by the cleaning brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural diagram of a two-color injection molding machine;

[0031] Figure 2 It is a cross-sectional schematic diagram of the hopper and its internal structure in this application;

[0032] Figure 3 It is a structural schematic diagram of the second rotating shaft, arc plate, first air nozzle and cam in this application;

[0033] Figure 4 It is a schematic diagram of the cross-sectional structure of the fixing block and the T-shaped plate in this application;

[0034] Figure 5 yes Figure 2 Enlarged view of point A in the middle;

[0035] Figure 6 It is a schematic diagram of the cross-sectional structure of the screen and the spacer in this application;

[0036] Figure 7 It is a schematic diagram of the cross-sectional structure of the mounting block and the magnetic plate in this application.

[0037] Explanation of the accompanying symbols: 1. Injection molding machine body; 11. Feed inlet; 2. Hopper; 21. Baffle; 211. Leakage hole; 212. Second chute; 213. Groove; 214. Insert plate; 22. Motor; 23. First rotating shaft; 231. Mounting block; 232. First threaded hole; 24. Magnetic plate; 241. First through hole; 242. First threaded rod; 25. Pad; 251. Second threaded hole; 26. Screen; 261. Second through hole; 262. Second threaded rod; 3. Rotating mechanism; 31. Second rotating shaft; 311. First cavity; 32. Arc plate; 321. Second cavity ;322, first air nozzle; 33, first bevel gear; 34, second bevel gear; 35, cam; 4, blower; 41, air outlet pipe; 5, air jet mechanism; 51, fixed block; 511, first slide groove; 512, second air nozzle; 52, T-shaped plate; 521, arc surface; 53, spring; 54, airbag; 6, swing assembly; 61, rotating shaft; 62, spur gear; 63, rack; 64, bracket; 65, swing plate; 7, cleaning mechanism; 71, first belt; 72, screw rod; 73, limit rod; 74, cleaning brush; 75, first pulley; 76, second pulley; 77, slider. DETAILED DESCRIPTION

[0038] The present invention will be described in further detail below with reference to the accompanying drawings. Like components are denoted by like reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," "lower," "bottom," and "top" used in the following description refer to directions in the accompanying drawings, and the terms "inner" and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0039] The present invention discloses a two-color injection molding machine, such as Figure 1 and Figure 2As shown, it includes an injection molding machine body 1; a feed port 11 is provided on the top of the injection molding machine body 1; the feed port 11 is communicated with the inside of the barrel of the injection molding machine body 1; a hopper 2 is detachably mounted on the top of the injection molding machine body 1; the hopper 2 is connected to the feed port 11 through a flange, a baffle 21 is fixedly connected to the inner wall of the hopper 2, and a pair of leakage holes 211 are provided on the top of the baffle 21; a second chute 212 is provided on the inner wall of the leakage hole 211, and the leakage hole 211 is away from the second chute 2 12 is provided with a groove 213; a plug plate 214 that cooperates with the groove 213 is slidably connected in the second slide groove 212; a motor 22 is installed on the outer wall of the hopper 2, and a pad 25 is fixed at the corner of the inner wall of the hopper 2; a screen 26 is detachably installed on the top of the pad 25; the output end of the motor 22 is fixedly connected to the first rotating shaft 23; a mounting block 231 is fixedly connected to the outer wall of the first rotating shaft 23; a magnetic plate 24 is detachably mounted on the mounting block 231.

[0040] The fixed connection between the hopper 2 and the feed port 11 is achieved by the flange, and the installation method is simple and convenient, which makes it easy to disassemble the hopper 2. When the raw material enters the hopper 2, the baffle 21 blocks the raw material and screens the large particles of impurities in the raw material through the screen 26 set on the top of the pad 25. When the iron impurities in the raw material are removed, the motor 22 is started, and the motor 22 drives the first rotating shaft 23 to rotate. During the rotation of the first rotating shaft 23, the mounting block 231 and the magnetic plate 24 on the side wall of the first rotating shaft 23 are driven to rotate, and the raw material in the hopper 2 is stirred by the magnetic plate 24. The iron impurities in the raw material are adsorbed on the surface of the magnetic plate 24 under the action of magnetic force. After the magnetic plate 24 adsorbs the iron impurities in the raw material, the insert plate 214 is pulled out of the second chute 212, so that the raw material in the hopper 2 enters the interior of the injection molding machine body 1 through the leakage hole 211, thereby realizing the separation of the raw material and the iron impurities.

[0041] like Figure 1 、 Figure 2 and Figure 3As shown, a first bevel gear 33 is fixedly connected to the middle of the first rotating shaft 23; a rotating mechanism 3 for dispersing raw materials is provided on the top of the baffle 21; the rotating mechanism 3 includes a second rotating shaft 31 and a plurality of arc plates 32; the second rotating shaft 31 is rotatably connected to the top of the baffle 21, and a second bevel gear 34 is fixedly connected to the end of the second rotating shaft 31 away from the baffle 21; the second bevel gear 34 is meshed with the first bevel gear 33; a first cavity 311 is provided inside the second rotating shaft 31; a plurality of arc plates 32 are fixedly connected to the outer wall of the second rotating shaft 31, and a There is a second cavity 321, and multiple first air nozzles 322 are fixedly connected to the top of the arc plate 32; the first cavity 311 is connected to the interior of the second cavity 321; the multiple first air nozzles 322 are connected to the interior of the second cavity 321; a blower 4 is fixedly connected to the top of the injection molding machine body 1; an air outlet pipe 41 is fixedly connected to the output end of the blower 4; the air outlet pipe 41 is sealed and connected to the bottom of the baffle 21, and the end of the air outlet pipe 41 away from the blower 4 passes through the baffle 21 and extends into the first cavity 311, and the air outlet pipe 41 is connected to the interior of the first cavity 311.

[0042] During the rotation process, the first rotating shaft 23 drives the first bevel gear 33 to rotate, and the first bevel gear 33 is engaged with the second bevel gear 34, thereby driving the second rotating shaft 31 to rotate, starting the blower 4, and the blower 4 blows air into the first cavity 311 through the air outlet pipe 41. The first cavity 311 is connected with the second cavity 321 inside the circular arc plate 32, and the first air nozzle 322 is connected with the second cavity 321, so that gas is ejected from the first air nozzle 322. When the circular arc plate 32 rotates with the second rotating shaft 31, the gas ejected from the first air nozzle 322 sprays the raw material inside the hopper 2, promotes the movement of the raw material inside the hopper 2, and causes the magnetic plate 24 to adsorb the iron impurities in the hopper 2.

[0043] like Figure 2 and Figure 4 As shown, a cam 35 is fixed to the outer wall of the second rotating shaft 31; a pair of air jet mechanisms 5 for blowing away the raw materials are provided on the inner wall of the hopper 2; the air jet mechanism 5 includes a fixed block 51 and a T-shaped plate 52; the fixed block 51 is fixed to the inner wall of the hopper 2, and a first slide groove 511 is provided inside the fixed block 51, and a plurality of second air jet nozzles 512 are provided on the side wall of the fixed block 51 close to the cam 35; an air bag 54 is provided inside the first slide groove 511; the plurality of second air jet nozzles 512 are communicated with the inside of the air bag 54; the T-shaped plate 52 is slidably connected to the inside of the first slide groove 511, and the side wall of the T-shaped plate 52 close to the cam 35 is provided with an arc surface 521 that cooperates with the cam 35, and the side wall of the T-shaped plate 52 away from the cam 35 is connected to the inner wall of the first slide groove 511 through a spring 53, and the side wall of the T-shaped plate 52 away from the arc surface 521 is in contact with the air bag 54.

[0044] As the second rotating shaft 31 rotates, the cam 35 rotates accordingly. During the rotation of the cam 35, it contacts the arc surface 521 of the T-shaped plate 52. Through the cooperation of the cam 35 and the arc surface 521, the T-shaped plate 52 slides along the first slide groove 511 and squeezes the airbag 54. The gas inside the airbag 54 is ejected through the second air nozzle 512 to blow the raw material away. When the cam 35 loses contact with the arc surface 521, the T-shaped plate 52 slides back under the action of the spring 53 so that the cam 35 squeezes the T-shaped plate 52 again.

[0045] like Figure 2 and Figure 5 As shown, a swing assembly 6 for stirring the raw materials is provided on the side wall of the fixed block 51; the swing assembly 6 includes a rotating shaft 61, a spur gear 62 and a rack 63; the rotating shaft 61 is rotatably connected to the outer wall of the fixed block 51 near the cam 35 through a bracket 64, and a pair of swing plates 65 are fixed to the outer wall of the rotating shaft 61; the spur gear 62 is fixed to the middle part of the rotating shaft 61; the rack 63 is fixed to the top of the T-shaped plate 52, and the rack 63 is engaged with the spur gear 62; during the sliding process of the T-shaped plate 52, the rack 63 slides with the T-shaped plate 52, and the rack 63 is engaged with the spur gear 62. The cooperation between the spur gear 62 and the rack 63 makes the rotating shaft 61 rotate, causing the swing plate 65 to swing, and the swing plate 65 pushes the raw materials during the swing process, promoting the movement of the raw materials in the hopper 2, so that the magnetic plate 24 can better adsorb iron impurities.

[0046] like Figure 2 As shown, a cleaning mechanism 7 for cleaning the screen 26 is provided inside the hopper 2; the cleaning mechanism 7 includes a first belt 71, a screw rod 72, a limit rod 73 and a cleaning brush 74; the screw rod 72 is rotatably connected to the inner wall of the hopper 2, and the end of the screw rod 72 away from the motor 22 extends out of the hopper 2, and the end of the screw rod 72 extending out of the hopper 2 is fixedly connected to a first pulley 75; the end of the first rotating shaft 23 away from the motor 22 extends out of the hopper 2, and the end of the first rotating shaft 23 extending out of the hopper 2 is fixedly connected to a second pulley 76; the first belt 71 is sleeved on the first pulley 75 and the second pulley 76; the outer wall of the screw rod 72 is sleeved A slider 77 is provided; the slider 77 and the screw rod 72 are connected by a ball screw nut pair; a cleaning brush 74 is fixed to the top of the slider 77; the limit rod 73 is fixed to the inner wall of the hopper 2, and the limit rod 73 passes through the slider 77; when the motor 22 drives the first rotating shaft 23 to rotate, the screw rod 72 rotates under the drive of the first belt 71, and the rotation of the screw rod 72 drives the slider 77 to slide, and the screen 26 is cleaned by the cleaning brush 74 to prevent the raw material particles from clogging the screen 26. The reciprocating cleaning of the screen 26 by the cleaning brush 74 is achieved by controlling the motor 22 to drive the first rotating shaft 23 to rotate forward and reverse.

[0047] like Figure 6As shown, a second threaded hole 251 is provided on the top of the pad 25; a second through hole 261 is provided on the top of the screen 26; a second threaded rod 262 is provided in the second through hole 261 to cooperate with the second threaded hole 251; when fixing the screen 26, the screen 26 is placed on the pad 25, and the screen 26 is fixed on the pad 25 through the cooperation between the second threaded rod 262 and the second threaded hole 251.

[0048] like Figure 7 As shown, a plurality of first threaded holes 232 are provided on the side wall of the mounting block 231; a first through hole 241 is provided at the bottom of the magnetic plate 24; a first threaded rod 242 is provided in the first through hole 241 to cooperate with the first threaded hole 232; when installing the magnetic plate 24, the magnetic plate 24 is installed on the mounting block 231, and the magnetic plate 24 is fixed on the mounting block 231 through the cooperation between the first threaded rod 242 and the first threaded hole 232.

[0049] Working principle: The hopper 2 is installed on the feed port 11 at the top of the injection molding machine body 1, and the raw materials are transported to the inside of the injection molding machine body 1 through the hopper 2. When the raw materials enter the inside of the hopper 2, the baffle 21 blocks the raw materials, and the motor 22 is started. The motor 22 drives the first rotating shaft 23 to rotate. During the rotation of the first rotating shaft 23, the magnetic plate 24 on the side wall of the first rotating shaft 23 is driven to rotate. The magnetic plate 24 stirs the raw materials in the hopper 2. The iron impurities in the raw materials are adsorbed on the surface of the magnetic plate 24 under the action of the magnetic force. The first rotating shaft 23 rotates. During the process, the first bevel gear 33 is driven to rotate, and the first bevel gear 33 is meshed with the second bevel gear 34, thereby driving the second rotating shaft 31 to rotate, starting the blower 4, and the blower 4 blows air into the first cavity 311 through the air outlet pipe 41. The first cavity 311 is connected with the second cavity 321 inside the arc plate 32, and the first air nozzle 322 is connected with the second cavity 321, so that the gas is ejected from the first air nozzle 322. When the arc plate 32 rotates with the second rotating shaft 31, the gas ejected from the first air nozzle 322 hits the original gas inside the hopper 2. The material is sprayed, which promotes the movement of the raw materials inside the hopper 2, so that the magnetic plate 24 adsorbs the iron impurities in the hopper 2; the cam 35 rotates accordingly during the rotation of the second rotating shaft 31, and the cam 35 contacts the arc surface 521 of the T-shaped plate 52 during the rotation. Through the cooperation of the cam 35 and the arc surface 521, the T-shaped plate 52 slides along the first slide groove 511 and squeezes the air bag 54. The gas inside the air bag 54 is ejected through the second air nozzle 512 to blow the raw materials away. When the cam 35 loses contact with the arc surface 521, Under the action of the spring 53, the T-shaped plate 52 slides back so that the cam 35 squeezes the T-shaped plate 52 again. During the sliding process of the T-shaped plate 52, the rack 63 slides back and forth with the T-shaped plate 52, and the rack 63 meshes with the spur gear 62. The cooperation between the spur gear 62 and the rack 63 causes the rotating shaft 61 to rotate back and forth, thereby causing the swing plate 65 to swing. During the swinging process, the swing plate 65 pushes the raw material, thereby promoting the movement of the raw material in the hopper 2, so that the magnetic plate 24 can better absorb the iron impurities, thereby realizing the separation of the raw material and the iron impurities;By setting a screen 26 on the top of the pad 25 to screen large particles of impurities in the raw material, when the motor 22 drives the first rotating shaft 23 to rotate, the screw rod 72 is driven by the first belt 71 to rotate, and the slider 77 is sleeved on the outer wall of the screw rod 72. The slider 77 and the screw rod 72 are connected by a ball screw nut pair. When the screw rod 72 rotates, the slider 77 slides along the screw rod 72, so that the cleaning brush 74 cleans the screen 26 to prevent the raw material particles from clogging the screen 26. The cleaning is achieved by controlling the motor 22 to drive the first rotating shaft 23 to rotate forward and backward. The cleaning brush 74 reciprocates to clean the screen 26. When the iron removal work of the raw material in the hopper 2 is completed, the plug plate 214 in the second chute 212 is pulled out, and the raw material falls through the leakage hole 211, thereby allowing the raw material to enter the injection molding machine body 1. When a large amount of iron impurities are attached to the magnetic plate 24, the second threaded rod 262 is rotated to remove the screen 26 from the top of the cushion block 25. Then, the first threaded rod 242 is rotated to remove the magnetic plate 24 from the mounting block 231, thereby cleaning the iron impurities on the magnetic plate 24 and allowing the magnetic plate 24 to better perform the iron removal work.

[0050] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A two-color injection molding machine, characterized by: The invention comprises an injection molding machine body (1); a hopper (2) is detachably mounted on the top of the injection molding machine body (1); a baffle (21) is fixedly connected to the inner wall of the hopper (2), and a motor (22) is mounted on the outer wall of the hopper (2); a first rotating shaft (23) is fixedly connected to the output end of the motor (22); a mounting block (231) is fixedly connected to the outer wall of the first rotating shaft (23); a magnetic plate (24) is detachably mounted on the mounting block (231); a rotating mechanism (3) for dispersing raw materials is provided on the top of the baffle (21); the first rotating shaft (23) drives the rotating mechanism (3) to rotate; A first bevel gear (33) is fixedly connected to the middle of the first rotating shaft (23); the rotating mechanism (3) includes a second rotating shaft (31) and a plurality of circular arc plates (32); the second rotating shaft (31) is rotatably connected to the top of the baffle (21), and a second bevel gear (34) is fixedly connected to the end of the second rotating shaft (31) away from the baffle (21); the second bevel gear (34) is meshed with the first bevel gear (33); a first cavity (311) is provided inside the second rotating shaft (31); a plurality of circular arc plates (32) are fixedly connected to the outer wall of the second rotating shaft (31), and a second bevel gear (34) is provided inside the circular arc plates (32). The second cavity (321), a plurality of first air nozzles (322) are fixedly connected to the top of the arc plate (32); the first cavity (311) is communicated with the interior of the second cavity (321); the plurality of first air nozzles (322) are communicated with the interior of the second cavity (321); a blower (4) is fixedly connected to the top of the injection molding machine body (1); an air outlet pipe (41) is fixedly connected to the output end of the blower (4); the end of the air outlet pipe (41) away from the blower (4) passes through the side wall of the hopper (2) and is fixedly connected to the bottom of the baffle (21), and the air outlet pipe (41) is communicated with the interior of the first cavity (311); A cam (35) is fixedly connected to the outer wall of the second rotating shaft (31); a pair of jet mechanisms (5) for blowing away the raw materials are provided on the inner wall of the hopper (2); the jet mechanism (5) comprises a fixed block (51) and a T-shaped plate (52); the fixed block (51) is fixedly connected to the inner wall of the hopper (2); a first chute (511) is provided inside the fixed block (51); a plurality of second jet nozzles (512) are provided on the side wall of the fixed block (51) close to the cam (35); the first chute (511) is provided inside the fixed block (511); An air bag (54) is provided; a plurality of the second air jet nozzles (512) are connected to the interior of the air bag (54); the T-shaped plate (52) is slidably connected to the interior of the first slide groove (511); a side wall of the T-shaped plate (52) close to the cam (35) is provided with an arc surface (521) that matches the cam (35); a side wall of the T-shaped plate (52) away from the cam (35) is connected to the inner side wall of the first slide groove (511) through a spring (53); and a side wall of the T-shaped plate (52) away from the arc surface (521) contacts the air bag (54); A swing assembly (6) for stirring raw materials is provided on the side wall of the fixed block (51); the swing assembly (6) comprises a rotating shaft (61), a spur gear (62) and a rack (63); the rotating shaft (61) is rotatably connected to the outer wall of the fixed block (51) near the cam (35) through a bracket (64), and a pair of swing plates (65) are fixed to the outer wall of the rotating shaft (61); the spur gear (62) is fixed to the middle of the rotating shaft (61); the rack (63) is fixed to the top of the T-shaped plate (52), and the rack (63) is meshed with the spur gear (62).

2. A two-color injection molding machine according to claim 1, characterized in that: A pad (25) is fixedly connected to the corner of the inner wall of the hopper (2); a screen (26) is detachably mounted on the top of the pad (25); and a cleaning structure (7) for cleaning the screen (26) is provided inside the hopper (2).

3. A two-color injection molding machine according to claim 2, characterized in that: The cleaning mechanism (7) comprises a first belt (71), a screw rod (72), a limiting rod (73) and a cleaning brush (74); the screw rod (72) is rotatably connected to the inner wall of the hopper (2); the end of the screw rod (72) away from the motor (22) extends out of the hopper (2); the end of the screw rod (72) extending out of the hopper (2) is fixedly connected to the first pulley (75); the end of the first rotating shaft (23) away from the motor (22) extends out of the hopper (2); the end of the first rotating shaft (23) extending out of the hopper (2) is fixedly connected to the first pulley (75); The first belt (71) is sleeved on the first pulley (75) and the second pulley (76); a slider (77) is sleeved on the outer wall of the screw rod (72); the slider (77) and the screw rod (72) are connected by a ball screw nut pair; the cleaning brush (74) is fixed on the top of the slider (77), and the cleaning brush (74) is in contact with the screen (26); the limiting rod (73) is fixed on the inner wall of the hopper (2), and the limiting rod (73) passes through the slider (77).

4. The two-color injection molding machine according to claim 2, characterized in that: A second threaded hole (251) is provided on the top of the pad (25); a second through hole (261) is provided on the screen (26) at a position corresponding to the second threaded hole (251); and a second threaded rod (262) is provided in the second through hole (261) and is matched with the second threaded hole (251).

5. The two-color injection molding machine according to claim 1, characterized in that: A plurality of first threaded holes (232) are provided on the side wall of the mounting block (231); a first through hole (241) is provided at a position corresponding to the first threaded hole (232) at the bottom of the magnetic plate (24); and a first threaded rod (242) is provided in the first through hole (241) and is matched with the first threaded hole (232).

6. The two-color injection molding machine according to claim 1, characterized in that: A feed port (11) is provided on the top of the injection molding machine body (1); the feed port (11) is communicated with the interior of the barrel of the injection molding machine body (1); and the hopper (2) is connected to the feed port (11) via a flange.

7. The two-color injection molding machine according to claim 1, characterized in that: A pair of leakage holes (211) are provided on the top of the baffle (21); a second chute (212) is provided on the inner side wall of the leakage hole (211); a groove (213) is provided on the inner side wall of the leakage hole (211) away from the second chute (212); and a plug plate (214) that cooperates with the groove (213) is slidably connected in the second chute (212).

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