A mixing device for injection molding equipment

Abstract

The present application discloses a mixing device for injection molding equipment, which relates to the field of injection molding technology, and includes a barrel, a feed hopper is arranged at the top of the barrel, a discharge pipe is arranged at the bottom, a first rotating shaft is arranged to rotate in the barrel, a stirring rod is arranged on the first rotating shaft, a material storage box is arranged on the first rotating shaft, a driving mechanism is arranged in the first rotating shaft, an opening is arranged on one side of the material storage box, and a first discharge port and a second discharge port are opened on the material storage box. The present application utilizes a material storage box, the first rotating shaft drives the material storage box to rotate, and plastic particles enter the material storage box from the opening of the material storage box. During the rotation of the material storage box, the driving mechanism drives the material storage box to move back and forth. During the movement of the material storage box, some of the plastic particles in the material storage box are quickly discharged from the material storage box from the first discharge port, and some of the plastic particles in the material storage box are slowly discharged from the material storage box from the second discharge port, so that the plastic particles of different depths in the barrel can be mixed, and the stirring and mixing effect of the plastic particles is improved.

Description

Technical Field

[0001] The present application relates to the field of injection molding technology, and in particular to a mixing device for injection molding equipment. Background Art

[0002] Many spare parts in our daily life are produced through injection molding. Injection molding is to use injection molding equipment to heat-melt the stirred plastic particles and then inject them into the injection mold. After cooling, demolding is performed to obtain the injection molded product.

[0003] The existing mixing device for injection molding equipment includes a barrel, a stirring shaft, a stirring blade and a motor. The motor drives the stirring shaft to rotate, and the stirring shaft drives the stirring blade to rotate. The various plastic particles with good proportions are poured into the barrel in sequence, and the motor drives the stirring blade to rotate through the stirring shaft. The stirring blade stirs and mixes the various plastic particles in the barrel. After the stirring is completed, the stirred plastic particles are discharged through the discharge port below the barrel.

[0004] After various plastic particles are poured into the barrel in turn, they will be layered and accumulated in the barrel. The stirring blades can only stir the plastic particles on the same horizontal plane, making it difficult to mix the plastic particles at different depths in the barrel, resulting in poor stirring efficiency of the plastic particles. Summary of the invention

[0005] In order to improve the stirring effect of plastic particles, the present application provides a mixing device for injection molding equipment.

[0006] The present application provides a mixing device for injection molding equipment using the following technical solution:

[0007] A mixing device for injection molding equipment includes a barrel, a feed hopper is provided on the top of the barrel, a discharge pipe is provided at the bottom of the barrel, a first rotating shaft is rotatably provided in the barrel, a first driving member connected to the first rotating shaft is provided on the barrel, a plurality of stirring rods are provided on the first rotating shaft, a material storage box is slidably provided on the first rotating shaft along its own axial direction, a driving mechanism is provided in the first rotating shaft, the driving mechanism drives the material storage box to reciprocate and move up and down, the material storage box is provided with an opening at the end of the first rotating shaft in the rotation direction, a first discharge port is provided at the end of the material storage box away from the first rotating shaft, a plurality of second discharge ports are provided on the opposite side walls of the material storage box and on the side away from its own open end, and the caliber of the first discharge port is larger than the caliber of the second discharge port.

[0008] By adopting the above technical scheme, a variety of plastic particles are poured into the barrel from the feed port, and the first driving member drives a plurality of stirring rods to rotate through the first rotating shaft, and the stirring rods stir and mix the plastic particles. At the same time, the first rotating shaft drives the storage box to rotate, and the plastic particles enter the storage box from the opening of the storage box. During the rotation of the storage box, the driving mechanism drives the storage box to move up and down reciprocatingly. During the movement of the storage box, some of the plastic particles in the storage box are quickly discharged from the storage box from the first discharge port, and some of the plastic particles in the storage box are slowly discharged from the storage box from the second discharge port, so that plastic particles of different depths in the barrel can be mixed, thereby improving the stirring and mixing effect of the plastic particles.

[0009] Preferably, the driving mechanism includes a second driving member, a screw rod and a lifting block. A slide groove is provided on the first rotating shaft along its length direction, and the slide groove is opened at both ends along the diameter direction of the first rotating shaft. The second driving member is fixedly set at the bottom end of the slide groove in the first rotating shaft, the screw rod is set at the driving end of the second driving member, the lifting block is slidably set in the slide groove, the screw rod thread passes through the lifting block, and the material storage box is set on the side wall of the lifting block.

[0010] By adopting the above technical solution, the first rotating shaft drives the material storage box to rotate through the lifting block when it rotates, the second driving member drives the screw rod to rotate reciprocatingly, the screw rod drives the lifting block to move back and forth in the slide groove of the first rotating shaft, and the lifting block drives the material storage box to move back and forth, so that the material storage box can also move back and forth during the rotation process.

[0011] Preferably, the opening end of the material storage box is arranged to expand outward.

[0012] By adopting the above technical solution, when the first rotating shaft drives the material storage box to rotate, the plastic particles in the barrel enter the material storage box from the open outward expansion end of the material storage box, and the plastic particles at the outer expansion end of the material storage box can squeeze the plastic particles in the material storage box, thereby accelerating the discharge rate of the plastic particles from the first discharge port and the second discharge port, and improving the mixing effect of the plastic particles.

[0013] Preferably, a first baffle is provided on the material storage box, and the connection between the first baffle and the material storage box is located on the side of the first discharge port close to the opening end of the material storage box, and second baffles are provided on the opposite side walls of the material storage box, and the connection between the second baffle and the material storage box is located on the side of the second discharge port close to the opening end of the material storage box, and the side of the second baffle away from the material storage box is inclined toward the opening end of the material storage box.

[0014] By adopting the above technical solution, when the material storage box is moving, the first baffle and the second baffle block the plastic particles in the barrel, so that the plastic particles in the barrel will not enter the material storage box from the first discharge port and the second discharge port, thereby accelerating the discharge rate of the plastic particles from the first discharge port and the second discharge port and improving the mixing effect of the plastic particles.

[0015] Preferably, the material storage box is provided with a second rotating shaft for rotation in the first discharge port, a first paddle is provided on the second rotating shaft, second rotating shafts are provided in the opposite side walls of the material storage box, a plurality of second paddles are provided on the second rotating shaft, the plurality of second paddles are respectively located in the plurality of second discharge ports, and the second rotating shaft and the third rotating shaft are connected through a bevel gear assembly.

[0016] By adopting the above technical solution, when the plastic particles in the storage box are quickly discharged from the first discharge port, the plastic particles can push the first paddle to rotate quickly, the first paddle drives the second rotating shaft to rotate, the second rotating shaft drives the third rotating shaft to rotate through the bevel gear assembly, and the third rotating shaft drives multiple second paddles to rotate quickly. During the rotation of the second paddle, the rate at which the plastic particles are discharged from the second discharge port can be accelerated, thereby improving the mixing effect of the plastic particles.

[0017] Preferably, a fourth rotating shaft is fixedly provided on the side wall of the material storage box close to the first rotating shaft and on one side close to the opening end of the material storage box, and the fourth rotating shaft is rotatably arranged in the lifting block, and trigger rods are fixedly provided at the upper and lower ends of the slide groove in the first rotating shaft, and a switching assembly is arranged on the fourth rotating shaft. When the lifting block drives the material storage box to rise to the maximum stroke, the trigger rod at the upper end of the first rotating shaft drives the material storage box to rotate downward through the switching assembly, and when the lifting block drives the material storage box to descend to the maximum stroke, the trigger rod at the lower end of the first rotating shaft drives the material storage box to rotate upward through the switching assembly.

[0018] By adopting the above technical solution, when the lifting block drives the material storage box to rise to the maximum stroke, the trigger rod at the upper end of the first rotating shaft drives the material storage box to rotate downward through the switching assembly; when the lifting block drives the material storage box to descend to the maximum stroke, the trigger rod at the lower end of the first rotating shaft drives the material storage box to rotate upward through the switching assembly, so that during the downward and upward movement of the material storage box, the opening direction of the material storage box is the same as the moving direction of the material storage box, thereby facilitating the plastic particles to enter the material storage box.

[0019] The lock block is fixedly provided on the end portion of the sliding rod passing through the fourth rotating shaft, and an arc groove is provided on the side wall of the lifting block with the axis center of the fourth rotating shaft as the center point, the lock block is slidably provided in the arc groove, and the lock block is located on both sides of the arc groove. The first elastic member is arranged in the rotating rod and is used to drive the lock block to move into the lock groove through the sliding rod.

[0020] By adopting the above technical solution, during the lifting and moving process of the material storage box, the locking block is located in the locking groove and locks the material storage box through the sliding rod, the rotating rod and the fourth rotating shaft, so that the material storage box will not rotate during the movement process, when the material storage box moves to the upper end or the lower end of the first rotating shaft, the trigger rod pushes the wedge-shaped push block to move in the wedge-shaped push groove, the wedge-shaped push block drives the sliding rod to move through the wedge-shaped push groove, the sliding rod drives the locking block to move out of the locking groove and enter the arc groove, at this time, the material storage box is unlocked, the trigger rod pushes the material storage box to rotate through the wedge-shaped push block, the sliding rod, the rotating rod and the fourth rotating shaft, the sliding rod drives the locking block to slide in the arc groove, when the locking block slides to another locking groove, the first elastic member pushes the locking block into the locking groove through the sliding rod, and can be locked again with the material storage box. Such a configuration enables the opening direction of the material storage box to be automatically rotated and switched.

[0021] Preferably, the trigger rod includes a fixed rod body and a movable rod body, the fixed rod body is fixedly arranged in the first rotating shaft, the movable rod body is slidably arranged in the horizontal direction at one end of the fixed rod body close to the lifting block, a guide groove is opened on the end wall of the fixed rod body close to the movable rod body, a guide block is arranged on the end wall of the movable rod body close to the fixed rod body, the guide block is slidably arranged in the guide groove in the horizontal direction, the fixed rod body is provided with a third elastic member abutting the guide block in the guide groove, and the third elastic member is located on the side of the guide block close to the fourth rotating shaft.

[0022] When the first lever is in the unlock state, the lever is in the unlock state, and the lock is released, so that the locking block is locked and the locking mechanism is restored.

[0023] Preferably, telescopic shields are provided on both opening sides of the slide slot on the first rotating shaft and on the upper and lower sides of the lifting block.

[0024] By adopting the above technical solution, when the lifting block is moving up and down reciprocatingly, the telescopic shield shields the opening of the slide slot, so that the plastic particles will not enter the slide slot of the first rotating shaft.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. When the first rotating shaft drives the stirring rod to stir the material storage box, the material storage box is also driven to rotate, and the plastic particles enter the material storage box from the opening of the material storage box. During the rotation of the material storage box, the driving mechanism drives the material storage box to move up and down reciprocatingly. During the movement of the material storage box, some of the plastic particles in the material storage box are quickly discharged from the material storage box from the first discharge port, and some of the plastic particles in the material storage box are slowly discharged from the material storage box from the second discharge port, so that the plastic particles at different depths in the barrel can be mixed, thereby improving the stirring and mixing effect of the plastic particles;

[0027] 2. With the help of the first baffle and the second baffle, the first baffle and the second baffle block the plastic particles in the barrel during the movement of the storage box, so that the plastic particles in the barrel will not enter the storage box from the first discharge port and the second discharge port, thereby accelerating the discharge rate of the plastic particles from the first discharge port and the second discharge port, and improving the mixing effect of the plastic particles;

[0028] 3. Through the trigger rod and the switching assembly, when the lifting block drives the storage box to rise to the maximum stroke, the trigger rod at the upper end of the first rotating shaft drives the storage box to rotate downward through the switching assembly; when the lifting block drives the storage box to descend to the maximum stroke, the trigger rod at the lower end of the first rotating shaft drives the storage box to rotate upward through the switching assembly, so that during the downward and upward movement of the storage box, the opening direction of the storage box is the same as the moving direction of the storage box, thereby facilitating the plastic particles to enter the storage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of the mixing device for the injection molding equipment of this application;

[0030] Figure 2 This is a cross-sectional view of the overall structure of the mixing device for the injection molding equipment of this application;

[0031] Figure 3 This is a partial structural cross-sectional view of a mixing device for the injection molding equipment of the present application;

[0032] Figure 4 The mixing device for the injection molding equipment of this application is an exploded view of part of the structure of the material storage box to highlight the display;

[0033] Figure 5 The mixing device for the injection molding equipment of this application is an exploded view of the partial structure to highlight the first discharge port and the second discharge port;

[0034] Figure 6 For this application Figure 5 The enlarged schematic diagram at A in the middle;

[0035] Figure 7 A cross-sectional view showing a part of the structure of the second blade by highlighting the mixing device for the injection molding equipment of the present application;

[0036] Figure 8 The mixing device for the injection molding equipment of the present application is a partial structural cross-sectional view highlighting the first blade;

[0037] Fig. 9 This is a partial structural cross-sectional view of a mixing device for the injection molding equipment of the present application;

[0038] Fig.10 A cross-sectional view of a part of the structure of a mixing device for an injection molding device of the present application is provided to highlight the switching component;

[0039] Fig.11 The mixing device for the injection molding equipment of this application is a partial structural cross-sectional view highlighting the trigger rod.

[0040] Figure numerals: 1, barrel; 2, feed hopper; 3, discharge pipe; 4, first rotating shaft; 5, first driving member; 6, stirring rod; 7, storage box; 8, driving mechanism; 81, second driving member; 82, screw rod; 83, lifting block; 9, switching assembly; 91, rotating rod; 92, sliding rod; 93, locking block; 94, first elastic member; 95, second elastic member; 96, wedge-shaped push block; 10, first discharge port; 11, second discharge port; 12, chute; 13, first baffle; 14, second baffle; 15, second rotating shaft; 16, first Three rotating shafts; 17, first paddle; 18, second paddle; 19, fourth rotating shaft; 20, trigger lever; 201, fixed rod body; 202, moving rod body; 21, wedge-shaped push groove; 22, arc groove; 23, lock groove; 24, guide groove; 25, guide block; 26, third elastic member; 27, telescopic shield; 28, support leg; 30, third baffle; 31, bevel gear assembly; 311, first bevel gear; 312, second bevel gear; 313, third bevel gear; 314, fourth bevel gear; 32, fixed shield; 33, fifth rotating shaft. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-Figure 11 This application is described in further detail.

[0042] The embodiment of the present application discloses a mixing device for injection molding equipment.

[0043] Reference Figure 1 and Figure 2 A mixing device for injection molding equipment includes a barrel 1, three legs 28 are fixedly mounted on the bottom wall of the barrel 1, a feed hopper 2 is mounted on the top wall of the barrel 1, and a discharge pipe 3 is mounted on the bottom wall of the barrel 1. A first driving member 5 is fixedly mounted in the middle of the top wall of the barrel 1, a first rotating shaft 4 is coaxially mounted in the barrel 1, and the top end of the first rotating shaft 4 is fixedly connected to the driving end of the first driving member 5. In the present application, the first driving member 5 can be selected as a servo motor.

[0044] A plurality of stirring rods 6 are symmetrically fixedly mounted on the outer wall of the first rotating shaft 4 on both sides along the diameter direction thereof, and the plurality of stirring rods 6 are arranged at equal intervals along the axis direction of the first rotating shaft 4. A plurality of plastic particles are poured into the barrel 1 from the feed port, and the first driving member 5 drives the plurality of stirring rods 6 to rotate through the first rotating shaft 4, and the stirring rods 6 stir and mix the plastic particles, and the stirred and mixed plastic particles are discharged from the barrel 1 from the discharge pipe 3.

[0045] Reference Figure 2 and Figure 3, a slide groove 12 is provided in the first rotating shaft 4 along its own axial direction, and the slide groove 12 is opened at both ends along the diameter direction of the first rotating shaft 4, and the first rotating shaft 4 is located in the slide groove 12 and a driving mechanism 8 is installed. The driving mechanism 8 includes a second driving member 81, a screw rod 82 and a lifting block 83, the second driving member 81 is fixedly installed on the bottom wall of the first rotating shaft 4 located in the slide groove 12, the screw rod 82 is rotatably installed in the slide groove 12 of the first rotating shaft 4, the bottom end of the screw rod 82 is fixedly connected to the driving end of the second driving member 81, and the lifting block 83 is slidably installed in the slide groove 12 along the axial direction of the first rotating shaft 4, and the screw rod 82 is threaded through the lifting block 83. In the present application, the second driving member 81 can be selected as a servo motor. The first rotating shaft 4 can drive the driving mechanism 8 to rotate, and the second driving member 81 drives the lifting block 83 to move back and forth in the slide groove 12 through the screw rod 82, so that the lifting block 83 can move back and forth while rotating.

[0046] A telescopic shield 27 is installed at the opening end of the chute 12 on the first rotating shaft 4, and the telescopic shield 27 is located at the upper and lower sides of the lifting block 83, and the telescopic shield 27 is connected to the lifting block 83. During the reciprocating lifting and lowering movement of the lifting block 83, the telescopic shield 27 shields the opening of the chute 12, so that the plastic particles will not enter the chute 12 of the first rotating shaft 4.

[0047] Reference Figure 4 The lifting block 83 is rotatably mounted with a fourth rotating shaft 19 on both end walls along the diameter direction of the first rotating shaft 4, and the ends of the two fourth rotating shafts 19 that are away from each other are fixedly mounted with a material storage box 7. The material storage box 7 is open at the end of the first rotating shaft 4 in the rotation direction, and the open ends of the two material storage boxes 7 are arranged in opposite directions along the diameter direction of the first rotating shaft 4. The open end of the material storage box 7 is expanded outward, and the side of the side wall of the material storage box 7 close to the expanded end is fixedly connected to the fourth rotating shaft 19.

[0048] Reference Figure 5 A first discharge port 10 is provided on the end wall of the material storage box 7 away from the lifting block 83, and the first discharge port 10 is located on the side of the material storage box 7 away from its own open end. A plurality of second discharge ports 11 are symmetrically provided on the two side walls in the width direction of the material storage box 7, and the plurality of second discharge ports 11 are arranged at equal intervals along the length direction of the material storage box 7, and the second discharge ports 11 are located on the side of the material storage box 7 away from its own open end, and the diameter of the second discharge port 11 is smaller than the diameter of the first discharge port 10.

[0049] Reference Figure 4 and Figure 5The lifting block 83 drives the material storage box 7 to rotate in the barrel 1, and also drives the material storage box 7 to move up and down reciprocatingly in the barrel 1. During the rotation and movement of the material storage box 7, the plastic particles in the barrel 1 enter the material storage box 7 through the open end of the material storage box 7. As the material storage box 7 continues to rotate and move, some of the plastic particles in the material storage box 7 are quickly discharged from the material storage box 7 from the first discharge port 10, and some of the plastic particles in the material storage box 7 are slowly discharged from the material storage box 7 from the second discharge port 11, so that the plastic particles at different depths in the barrel 1 can be mixed, thereby improving the mixing effect of the plastic particles.

[0050] During the rotation and movement of the material storage box 7, the plastic particles at the outer expansion opening of the material storage box 7 can squeeze the plastic particles in the material storage box 7, thereby accelerating the discharge rate of the plastic particles from the first discharge port 10 and the second discharge port 11 and improving the mixing effect of the plastic particles.

[0051] Reference Figure 5 , Figure 6 , Figure 7 ,and Figure 8 The material storage box 7 is located in the first discharge port 10 and is rotatably mounted with a second rotating shaft 15 along its width direction, and two first paddles 17 are fixedly mounted on the second rotating shaft 15 at intervals. The two side walls in the width direction of the material storage box 7 are both rotatably mounted along their length direction, and a plurality of second paddles 18 are fixedly mounted on the third rotating shaft 16 at intervals, and the plurality of second paddles 18 are respectively located in the plurality of second discharge ports 11.

[0052] A bevel gear assembly 31 is installed at both ends of the second rotating shaft 15 in the material storage box 7, and a fixed shield 32 is installed on the material storage box 7, and the fixed shield 32 covers the bevel gear assembly 31. The bevel gear assembly 31 includes a first bevel gear 311, a second bevel gear 312, a third bevel gear 313 and a fourth bevel gear 314. The two first bevel gears 311 are fixedly installed at both ends of the second rotating shaft 15, and the two fourth bevel gears 314 are fixedly installed at the ends of the two third rotating shafts 16 close to the second rotating shaft 15. The second bevel gear 312 and the third bevel gear 313 are rotatably installed on the material storage box 7 through the fifth rotating shaft 33, and the second bevel gear 312 is meshed with the first bevel gear 311, and the third bevel gear 313 is meshed with the fourth bevel gear 314.

[0053] A first baffle 13 is fixedly installed on the side wall of the material storage box 7 away from the first rotating shaft 4, and the fixed connection between the first baffle 13 and the material storage box 7 is located on the side of the first discharge port 10 close to the opening end of the material storage box 7. The first baffle 13 is arc-shaped, and the arc-shaped protrusion of the first baffle 13 faces the opening end of the material storage box 7, and the first baffle 13 is covered on the side of the first paddle 17 close to the opening end of the material storage box 7.

[0054] Two second baffles 14 are symmetrically fixedly installed on the two side walls in the width direction of the storage box 7. The fixed connection between the second baffle 14 and the storage box 7 is located on the side of the second discharge port 11 close to the opening direction of the storage box 7. The side of the second baffle 14 away from the storage box 7 is inclined in the direction away from the opening end of the storage box 7 and is located above the second discharge port 11, and the second baffle 14 is covered on the second discharge port 11.

[0055] A third baffle 30 is fixedly installed on one side of each second discharge port 11 of the material storage box 7 near its own opening end. The third baffle 30 is arc-shaped, and the arc-shaped protrusion of the third baffle 30 faces the opening end of the material storage box 7, and the third baffle 30 is covered on one side of the second paddle 18 near the opening end of the material storage box 7.

[0056] When the plastic particles in the storage box 7 are discharged from the first discharge port 10, the first baffle 13 blocks part of the plastic particles, so that the plastic particles are discharged from the storage box 7 from the first discharge port 10 away from the open end of the storage box 7. At this time, the plastic particles push the first paddle 17 to rotate at a high speed. The first paddle 17 drives the multiple second paddles 18 to rotate at a high speed through the second rotating shaft 15, the first bevel gear 311, the second bevel gear 312, the third bevel gear 313, the fourth bevel gear 314 and the third rotating shaft 16. During the rotation of the second paddle 18, the discharge rate of the plastic particles from the second discharge port 11 can be increased, thereby further improving the mixing effect of the plastic particles.

[0057] When the material storage box 7 is moving, the first baffle 13 and the second baffle 14 block the plastic particles in the barrel 1, so that the plastic particles in the barrel 1 will not affect the rotation of the first paddle 17 and the second paddle 18, thereby accelerating the discharge rate of the plastic particles from the first discharge port 10 and the second discharge port 11 and improving the mixing effect of the plastic particles.

[0058] Reference Fig. 9 and Fig.10The fourth rotating shaft 19 is provided with a switching assembly 9, which includes a rotating rod 91, a sliding rod 92, a locking block 93, a first elastic member 94, two second elastic members 95 and a wedge-shaped push block 96. The rotating rod 91 is fixedly installed in the fourth rotating shaft 19, and the sliding rod 92 is slidably installed in the rotating rod 91, and one end of the sliding rod 92 passes through the rotating rod 91. The locking block 93 is fixedly installed at the end of the sliding rod 92 passing through the fourth rotating shaft 19 and is located on a side close to the lifting block 83. The lifting block 83 has an arc groove 22 on both opposite side walls. The arc groove 22 takes the axis of the fourth rotating shaft 19 as the center of the circle, and the arc groove 22 is located on the side of the fourth rotating shaft 19 away from the rotating rod 91. When the fourth rotating shaft 19 rotates, the fourth rotating shaft 19 drives the locking block 93 to rotate in the arc groove 22 through the rotating rod 91 and the sliding rod 92. Locking grooves 23 communicating with the arc groove 22 are provided on the side walls of the lifting block 83 and at both ends of the arc groove 22 . The locking grooves 23 are located on the side of the arc groove 22 away from the fourth rotating shaft 19 , and the locking block 93 slides in the arc groove 22 and the locking groove 23 .

[0059] The two wedge-shaped push blocks 96 are slidably mounted on the rotating rod 91 and are located on the upper and lower sides of the sliding rod 92. Wedge-shaped push grooves 21 are provided in the upper and lower side walls of the sliding rod 92. The ends of the two wedge-shaped push blocks 96 that are close to each other are respectively located in the two wedge-shaped push grooves 21, and the ends of the wedge-shaped push blocks 96 that are away from the wedge-shaped push grooves 21 are inclined in the direction away from the fourth rotating shaft 19.

[0060] The first elastic member 94 is installed in the rotating rod 91, and the first elastic member 94 is located at the end of the sliding rod 92 away from the locking block 93, and the first elastic member 94 abuts against the end of the sliding rod 92 and the inner wall of the rotating rod 91. In the present application, the first elastic member 94 can be selected as a spring, and the first elastic member 94 can push the sliding rod 92 to move toward the fourth rotating shaft 19, and the sliding rod 92 drives the locking block 93 to move into the locking groove 23 to lock the fourth rotating shaft 19.

[0061] Two second elastic members 95 are installed in the rotating rod 91 and sleeved on two wedge-shaped push blocks 96. A pull block is fixedly installed on the side wall of the wedge-shaped push block 96. The second elastic member 95 is located on the side of the pull block away from the slide rod 92. One end of the second elastic member 95 is fixedly connected to the pull block, and the other end is fixedly connected to the rotating rod 91. In the present application, the second elastic member 95 can be selected as a tension spring, and the second elastic member 95 can pull the wedge-shaped push block 96 to move away from the slide rod 92.

[0062] Reference Figure 3 , Fig.10 and Fig.11Four trigger rods 20 are fixedly installed at the upper and lower ends of the slide slot 12 in the first rotating shaft 4, and each two trigger rods 20 are located at the upper and lower sides of a rotating rod 91. When the lifting block 83 drives the material storage box 7 to move upward, the opening of the material storage box 7 tilts upward. At this time, the locking block 93 is located in the locking slot 23 at the bottom end of the arc slot 22 and locks the fourth rotating shaft 19, so that the material storage box 7 will not rotate on the lifting block 83 when it moves upward.

[0063] When the lifting block 83 moves close to the top of the slide slot 12, the trigger rod 20 at the upper end of the slide slot 12 abuts against the wedge-shaped push block 96 above the rotating rod 91, and the wedge-shaped push block 96 moves into the rotating rod 91 and drives the slide bar 92 to move away from the fourth rotating shaft 19 through the wedge-shaped push slot 21, and the slide bar 92 drives the locking block 93 from the locking slot 23 to the arc slot 22, and the fourth rotating shaft 19 can be locked. As the lifting block 83 continues to rise, the trigger rod 20 drives the fourth rotating shaft 19 to rotate through the rotating rod 91, and the fourth rotating shaft 19 drives the material storage box 7 to rotate, so that the opening direction of the material storage box 7 gradually rotates downward.

[0064] When the lifting block 83 moves to the top of the slide groove 12, the slide rod 92 drives the locking block 93 to move to the locking groove 23 at the top of the arc groove 22, and the first elastic member 94 pushes the locking block 93 to move into the locking groove 23 through the slide rod 92, so that the fourth rotating shaft 19 can be locked again, so that the opening direction of the storage box 7 can always remain tilted downward during the descent process.

[0065] The trigger rod 20 includes a fixed rod body 201 and a movable rod body 202. The fixed rod body 201 is fixedly installed in the slide groove 12 of the first rotating shaft 4. A guide groove 24 is provided on the end wall of the fixed rod body 201 close to the rotating rod 91 in the horizontal direction. A guide block 25 is fixedly installed on the end wall of the movable rod body 202 away from the rotating rod 91. The guide block 25 is slidably installed in the guide groove 24 in the horizontal direction. A third elastic member 26 is installed in the fixed rod body 201 located in the slide groove 12. The third elastic member 26 is located on the side of the guide block 25 close to the fourth rotating shaft 19, and the third elastic member 26 abuts against the guide block 25 and the inner wall of the fixed rod body 201. In the present application, the third elastic member 26 can be selected as a spring.

[0066] When the rotating rod 91 drives the wedge-shaped push block 96 above itself to move and abut against the bottom end of the movable rod body 202, the movable rod body 202 can push the wedge-shaped push block 96 to move into the rotating rod 91. At this time, the movable rod body 202 and the wedge-shaped push block 96 are on the same straight line in the vertical direction. When the fourth rotating shaft 19 is unlocked, the movable rod body 202 pushes the rotating rod 91 to rotate. When the rotating rod 91 rotates downward to a horizontal state, the movable rod body 202 and the wedge-shaped push block 96 are not on the same straight line in the vertical direction. The bottom end of the movable rod body 202 separates from the wedge-shaped push block 96 and abuts against the top wall of the rotating rod 91. At this time, the second elastic member 95 pulls the wedge-shaped push block 96 to move away from the sliding rod 92 through the pull block to reset, so that the wedge-shaped push block 96 can push the sliding rod 92 to move again.

[0067] As the rotating rod 91 continues to rotate downward from the horizontal state, the movable rod body 202 gradually moves toward the direction close to the wedge-shaped push block 96. When the movable rod body 202 moves to abut against the wedge-shaped push block 96, the wedge-shaped push block 96 pushes the movable rod body 202 to move, and the movable rod body 202 drives the guide block 25 to move in the guide groove 24, and the guide block 25 squeezes the third elastic member 26. In this way, when the locking block 93 locks the material storage box 7 again, the wedge-shaped push block 96 and the trigger rod 20 will not interfere. When the lifting block 83 moves downward from the top of the slide groove 12, the rotating rod 91 drives the wedge-shaped push block 96 to move and separate from the movable rod body 202. At this time, the third elastic member 26 can push the movable rod body 202 to move and reset through the guide block 25, so that the movable rod body 202 can switch the direction of the material storage box 7 again.

[0068] Similarly, when the lifting block 83 moves to the bottom of the slide slot 12, the trigger rod 20 can drive the material storage box 7 to rotate and lock it through the switching component 9, so that the opening direction of the material storage box 7 can always remain tilted upward during the rising process.

[0069] The implementation principle of a mixing device for injection molding equipment in the embodiment of the present application is as follows: a plurality of plastic particles are poured into the barrel 1 from the feed port, and the first driving member 5 drives a plurality of stirring rods 6 to rotate through the first rotating shaft 4, and the stirring rods 6 stir and mix the plastic particles. The second driving member 81 drives the lifting block 83 to move back and forth in the chute 12 through the screw rod 82, and the lifting block 83 drives the storage box 7 to move through the fourth rotating shaft 19, so that the storage box 7 can move back and forth while rotating. During the rotation and movement of the storage box 7, the plastic particles in the barrel 1 enter the storage box 7 through the open end of the storage box 7. As the storage box 7 continues to rotate and move, some of the plastic particles in the storage box 7 are quickly discharged from the storage box 7 from the first discharge port 10, and some of the plastic particles in the storage box 7 are slowly discharged from the storage box 7 from the second discharge port 11, so that the plastic particles at different depths in the barrel 1 can be mixed, which improves the mixing effect of the plastic particles, and the plastic particles that have been stirred and mixed are then discharged from the barrel 1 from the discharge pipe 3.

[0070] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A mixing device for injection molding equipment, comprising a barrel (1), a feed hopper (2) is arranged at the top of the barrel (1), a discharge pipe (3) is arranged at the bottom of the barrel (1), a first rotating shaft (4) is rotatably arranged in the barrel (1), a first driving member (5) connected to the first rotating shaft (4) is arranged on the barrel (1), and a plurality of stirring rods (6) are arranged on the first rotating shaft (4), Features: A material storage box (7) is slidably arranged on the first rotating shaft (4) along its own axial direction. A driving mechanism (8) is arranged inside the first rotating shaft (4). The driving mechanism (8) drives the material storage box (7) to move up and down reciprocatingly. The material storage box (7) is opened at the end of the first rotating shaft (4) in the rotating direction. A first material discharge opening (10) is provided at the end of the material storage box (7) away from the first rotating shaft (4). A plurality of second material discharge openings (10) are provided on the opposite side walls of the material storage box (7) and on the side away from the opening end thereof. The first discharge port (11) has a diameter greater than that of the second discharge port (11); the driving mechanism (8) comprises a second driving member (81), a screw rod (82) and a lifting block (83); a slide groove (12) is provided on the first rotating shaft (4) along its length direction; both ends of the slide groove (12) along the diameter direction of the first rotating shaft (4) are open; the second driving member (81) is fixedly arranged at the bottom end of the slide groove (12) in the first rotating shaft (4); the screw rod (82) is arranged The lifting block (83) is arranged at the driving end of the second driving member (81), the lifting block (83) is slidably arranged in the slide groove (12), the screw rod (82) is threadedly passed through the lifting block (83), and the material storage box (7) is arranged on the side wall of the lifting block (83); a fourth rotating shaft (19) is fixedly arranged on the side wall of the material storage box (7) close to the first rotating shaft (4) and located close to the opening end of the material storage box (7), and the fourth rotating shaft (19) is rotatably arranged in the lifting block (83), and the first rotating shaft (4) is located in the slide groove ( A trigger rod (20) is fixedly arranged at both the upper and lower ends of the first rotating shaft (12), and a switching assembly (9) is arranged on the fourth rotating shaft (19). When the lifting block (83) drives the material storage box (7) to rise to the maximum stroke, the trigger rod (20) at the upper end of the first rotating shaft (4) drives the material storage box (7) to rotate downward through the switching assembly (9); when the lifting block (83) drives the material storage box (7) to descend to the maximum stroke, the trigger rod (20) at the lower end of the first rotating shaft (4) drives the material storage box (7) to rotate upward through the switching assembly (9);The switching assembly (9) comprises a rotating rod (91), a sliding rod (92), a locking block (93), a first elastic member (94), two second elastic members (95) and a wedge-shaped push block (96); the rotating rod (91) is fixedly arranged on the fourth rotating shaft (19); the sliding rod (92) is slidably arranged in the rotating rod (91); the two wedge-shaped push blocks (96) are slidably arranged in the rotating rod (91) and are located on the upper and lower sides of the sliding rod (92); the upper and lower side walls of the sliding rod (92) are both provided with wedge-shaped push grooves (21); the end portions of the two wedge-shaped push blocks (96) close to each other are The second elastic members (95) are respectively located in the two wedge-shaped push grooves (21), the two second elastic members (95) are arranged in the rotating rod (91) and are respectively connected to the two wedge-shaped push blocks (96), the second elastic members (95) are used to pull the wedge-shaped push blocks (96) to move in a direction away from the sliding rod (92), one end of the sliding rod (92) passes through the fourth rotating shaft (19) and extends to the side of the fourth rotating shaft (19) away from the rotating rod (91), the locking block (93) is fixedly arranged at the end of the sliding rod (92) passing through the fourth rotating shaft (19), and the side wall of the lifting block (83) is fixedly provided with a locking block (93) with the axis of the fourth rotating shaft (19) at the same time. An arc groove (22) is provided for the dot, the locking block (93) is slidably arranged in the arc groove (22), the lifting block (83) is located on both sides of the arc groove (22) and has locking grooves (23), the first elastic member (94) is arranged in the rotating rod (91) and is used to drive the locking block (93) to move into the locking groove (23) through the sliding rod (92); the trigger rod (20) comprises a fixed rod body (201) and a movable rod body (202), the fixed rod body (201) is fixedly arranged in the first rotating shaft (4), and the movable rod body (202) is slidably arranged in the fixed rod body (201) along the horizontal direction. A guide groove (24) is provided on the end of the rod body (201) close to the lifting block (83), and a guide block (25) is provided on the end wall of the fixed rod body (201) close to the movable rod body (202). The guide block (25) is slidably arranged in the guide groove (24) along the horizontal direction. A third elastic member (26) abutting against the guide block (25) is provided on the fixed rod body (201) in the guide groove (24), and the third elastic member (26) is located on the side of the guide block (25) close to the fourth rotating shaft (19). ; 2. A mixing device for injection molding equipment according to claim 1, Features: The opening end of the material storage box (7) is arranged to expand outwards.

3. A mixing device for injection molding equipment according to claim 1, Features: The material storage box (7) is provided with a first baffle (13), and the connection between the first baffle (13) and the material storage box (7) is located on a side of the first material discharge port (10) close to the opening end of the material storage box (7). Second baffles (14) are provided on opposite side walls of the material storage box (7), and the connection between the second baffle (14) and the material storage box (7) is located on a side of the second material discharge port (11) close to the opening end of the material storage box (7), and the side of the second baffle (14) away from the material storage box (7) is inclined away from the opening end of the material storage box (7).

4. A mixing device for injection molding equipment according to claim 3, Features: The material storage box (7) is rotatably provided with a second rotating shaft (15) in the first material discharge port (10), and a first paddle (17) is provided on the second rotating shaft (15). Second rotating shafts (15) are provided in opposite side walls of the material storage box (7), and a plurality of second paddles (18) are provided on the second rotating shaft (15). The plurality of second paddles (18) are respectively located in the plurality of second material discharge ports (11), and the second rotating shaft (15) and the third rotating shaft (16) are connected in transmission via a bevel gear assembly (31).

5. A mixing device for injection molding equipment according to claim 1, Features: Telescopic shields (27) are provided on the two opening sides of the slide slot (12) on the first rotating shaft (4) and on the upper and lower sides of the lifting block (83).

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