Injection molding machine feed device

Abstract

The utility model discloses a kind of injection molding machine feeding devices, including injection molding machine cylinder, feed inlet, receiving cylinder and feed pipe, receiving cylinder upper end center is fixedly connected with driving motor, driving motor output end is fixedly connected with rotary drum, rotary drum is fixedly connected with electric push rod inside, electric push rod output end is fixedly connected with link plate, link plate bottom end is fixedly connected with link rod, link rod bottom end is fixedly connected with carousel, carousel bottom end is fixedly connected with presser plate, receiving cylinder is fixedly connected with first link ring inside, receiving cylinder is fixedly connected with second link ring on first link ring bottom side, the utility model is by being set in receiving cylinder detachable moving ring and filter screen, can reduce material falling speed, simultaneously by hot air blower drive hot air current into receiving cylinder and contact material falling on filter screen, simultaneously movable carousel can bring material dispersion rotation, and by knocking, material on filter screen falls to feed hole, can improve drying effect.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically to a feeding device for an injection molding machine. Background Technology

[0002] An injection molding machine is a device that uses plastic molds to make plastic parts from thermoplastic or thermosetting plastics. The feeding device of an injection molding machine is a material dispensing and supply mechanism, which usually consists of a material storage structure, a conveying structure, and a dispensing structure.

[0003] According to Chinese Patent Publication No. CN222156427U, "A Feeding Device for an Injection Molding Machine," the device mainly describes a feeding roller that controls the amount of material fed. Through a dryer and pipes, the injection molding compound is dried inside a surrounding plate, avoiding uneven drying caused by material accumulation. This allows the raw material to reach the required dryness level in a short time, shortening the production cycle. Furthermore, by setting a placement plate inside the conveyor belt, and having a collection bin inside the placement plate, fine impurities inside the injection molding compound can fall into the collection bin through filter holes on the conveyor belt, thus ensuring the purity of the injection molding compound.

[0004] Common injection molding machine feeding mechanisms use heating to dry the injection molding granules and provide preheating, reducing energy consumption when the injection molding machine melts plastic granules. Some injection molding machine feeding mechanisms require a dryer to heat the material and move it through a conveyor mechanism. However, plastic granules have gravity and fall directly onto the conveyor belt without obstruction when falling from the unloading mechanism. The falling speed is relatively fast, and they accumulate on the conveyor belt. The contact time with the airflow at the drying structure is relatively low, which affects the drying effect of the plastic granules. Utility Model Content

[0005] In view of the deficiencies in the prior art, this utility model provides a feeding device for an injection molding machine to increase the contact time between plastic particles and the drying structure during the feeding process of the injection molding machine, and improve the drying effect and efficiency.

[0006] The technical solution adopted by this utility model to solve the technical problem is: a feeding device for an injection molding machine, including an injection molding machine barrel, a feed inlet, a receiving cylinder, and a feed pipe. A drive motor is fixedly connected to the center of the upper end of the receiving cylinder. A rotating cylinder is fixedly connected to the output end of the drive motor. An electric push rod is fixedly connected inside the rotating cylinder. A connecting plate is fixedly connected to the output end of the electric push rod. A connecting rod is fixedly connected to the bottom end of the connecting plate. A turntable is fixedly connected to the bottom end of the connecting rod. A pressure plate is fixedly connected to the bottom end of the turntable. A first connecting ring is fixedly connected inside the receiving cylinder. The receiving cylinder is located at... A second connecting ring is fixedly connected to the bottom side of the first connecting ring. A hot air blower is fixedly connected to the outside of the second connecting ring. A pipe is fixedly connected to one end of the hot air blower, and one end of the pipe is fixedly connected to an annular pipe. Nozzles are evenly fixedly connected to the inside of the annular pipe. An air outlet pipe is fixedly connected to the upper side of the receiving cylinder. A movable ring is in contact between the first connecting ring and the second connecting ring. A first spring rod is fixedly connected to each of the four mutually distant sides of the movable ring. A filter screen is sleeved on the first spring rod. A limit plate is fixedly connected to the first spring rod above the filter screen.

[0007] As a preferred technical solution of this utility model, a second spring rod is fixedly connected to each of the four sides inside the rotating drum. A protrusion is fixedly connected to the bottom end of the second spring rod. The second spring rod is movably inserted into the connecting plate. By setting the second spring rod, the connecting plate can be easily limited, thereby improving the stability of the rotation and movement of the turntable.

[0008] As a preferred technical solution of this utility model, the upper end of the turntable is provided with a conical surface, and combing strips are uniformly fixedly connected to the turntable on the conical surface. By setting the combing strips, the dispersion effect of plastic particles can be increased.

[0009] As a preferred technical solution of this utility model, the receiving cylinder is provided with an arc-shaped groove between the first connecting ring and the second connecting ring, the moving ring is inserted into the arc-shaped groove, and arc-shaped limiting plates are fixedly connected to both the upper and lower sides of the receiving cylinder at the arc-shaped groove. A pressure rod is threadedly connected to the arc-shaped limiting plate, and an arc-shaped extrusion strip is sleeved on the pressure rod. The arc-shaped extrusion strip corresponds to the moving ring. By setting a detachable arc-shaped extrusion strip, the moving ring can be limited, and it is also convenient to disassemble the moving ring and clean the filter screen.

[0010] As a preferred technical solution of this utility model, a pad is fixedly connected to the side of the arc-shaped extrusion strip near the moving ring. The pad is made of rubber. By setting the pad, the arc-shaped extrusion strip extrudes the pad, and at the same time, the pad contacts the side of the moving ring, which can provide a sealing effect.

[0011] This invention has the following advantages: by setting a detachable moving ring and filter screen inside the receiving cylinder, the falling speed of the material can be reduced. At the same time, the hot air blower drives the hot airflow into the receiving cylinder and contacts the material falling on the filter screen. Meanwhile, the up-and-down movable and rotatable turntable can drive the material to disperse and rotate. By tapping, the material on the filter screen falls to the feed hole, which can improve the drying effect and also avoid the material being obstructed when falling, resulting in a slow falling speed. Moreover, when the pressure plate contacts the filter screen, it can provide a crushing effect, reducing the problem of poor drying effect of agglomerated plastic particles. Attached Figure Description

[0012] Figure 1 This is a three-dimensional sectional view of a preferred embodiment of the feeding device for an injection molding machine. Figure 2 This is a side sectional view of the receiving cylinder of a preferred embodiment of the present invention for an injection molding machine feeding device; Figure 3 This is a three-dimensional sectional view of the moving ring of a feeding device for an injection molding machine according to a preferred embodiment of the present invention.

[0013] Explanation of reference numerals in the attached drawings: 1. Injection molding machine barrel; 2. Feed inlet; 3. Receiving cylinder; 4. Feed pipe; 5. Drive motor; 6. Rotary drum; 7. Electric push rod; 8. Connecting plate; 9. Connecting rod; 10. Turntable; 11. Pressure plate; 12. First connecting ring; 13. Second connecting ring; 14. Hot air blower; 15. Ring pipe; 16. Moving ring; 17. Filter screen; 18. Second spring rod; 19. Combing strip; 20. Arc-shaped limiting plate; 21. Arc-shaped extrusion strip; 22. Pressure rod; 23. First spring rod. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Please refer to the following: Figure 1-3The injection molding machine feeding device shown includes an injection molding machine barrel 1, a feed inlet 2, a receiving cylinder 3, and a feed pipe 4. A drive motor 5 is fixedly connected to the center of the upper end of the receiving cylinder 3. A rotating drum 6 is fixedly connected to the output end of the drive motor 5. An electric push rod 7 is fixedly connected inside the rotating drum 6. A connecting plate 8 is fixedly connected to the output end of the electric push rod 7. Protrusions are fixedly connected to the four sides of the connecting plate 8. Limiting grooves are formed on the four sides inside the rotating drum 6. The two work together to allow the connecting rod 9 and the turntable 10 to rotate when the rotating drum 6 rotates. At this time, under the action of the drive motor 5 and the electric push rod 7... Turntable 10 can move up and down and rotate. A connecting rod 9 is fixedly connected to the bottom of connecting plate 8. Turntable 10 is fixedly connected to the bottom of connecting rod 9. A pressure plate 11 is fixedly connected to the bottom of turntable 10. When electric push rod 7 extends, pressure plate 11 can contact filter screen 17, thereby squeezing and striking filter screen 17, causing the material on filter screen 17 to fall to feed inlet 2. The mesh size of filter screen 17 is larger than the particle size of plastic granules (material). A first connecting ring 12 is fixedly connected inside receiving cylinder 3. The first connecting ring 12 has a right-angled trapezoidal cross-section, with its oblique angle... It provides a guiding function to reduce material retention. The receiving cylinder 3 is fixedly connected to the second connecting ring 13 at the bottom side of the first connecting ring 12. A hot air blower 14 is fixedly connected to the outside of the receiving cylinder 3 at the second connecting ring 13. The hot air blower 14, together with the fittings, the annular pipe 15 and the nozzle, guides the hot air into the receiving cylinder 3, and then contacts the material falling from the filter screen 17. At the same time, due to the flow of the gas, it also contacts the material retained on the filter screen 17, thereby drying the material. At the same time, an air outlet pipe is provided on one side of the upper end of the receiving cylinder 3 for the exhaust of gas. One end of the hot air blower 14 is fixedly connected to a pipe fitting, and one end of the pipe fitting is fixedly connected to an annular pipe 15. Nozzles are evenly fixedly connected to the inner side of the annular pipe 15. An air outlet pipe is fixedly connected to the upper side of the receiving cylinder 3. A movable ring 16 is in contact between the first connecting ring 12 and the second connecting ring 13. A first spring rod 23 is fixedly connected to each of the four mutually distant sides inside the movable ring 16. A filter screen 17 is sleeved on the first spring rod 23. The outer edge of the filter screen 17 is in contact with the upper side of the inner side of the movable ring 16. A limit plate is fixedly connected to the upper side of the first spring rod 23 above the filter screen 17.

[0016] The rotating drum 6 has a second spring rod 18 fixedly connected to each of its four sides. The bottom end of the second spring rod 18 is fixedly connected to a protrusion. The second spring rod 18 is movably inserted into the connecting plate 8. By setting the second spring rod 18 and the protrusion, the connecting plate 8 can be limited, thereby making the connecting plate 8 move up and down more stably under the action of the electric push rod 7.

[0017] The turntable 10 has a conical surface at its upper end, which corresponds to the feed pipe 4. The turntable 10 is uniformly and fixedly connected with combing strips 19 on the conical surface. When the material enters the receiving cylinder 3 from the feed pipe 4, it will first contact the upper surface of the turntable 10 and then disperse. At the same time, the turntable 10 and the combing strips 19 can promote better material dispersion.

[0018] The receiving cylinder 3 has an arc-shaped groove between the first connecting ring 12 and the second connecting ring 13. The moving ring 16 is inserted into the arc-shaped groove. Arc-shaped limiting plates 20 are fixedly connected to both the upper and lower sides of the arc-shaped groove of the receiving cylinder 3. A pressure rod 22 is threaded onto the arc-shaped limiting plate 20. An arc-shaped extrusion strip 21 is sleeved on the pressure rod 22. The arc-shaped extrusion strip 21 corresponds to the moving ring 16. By setting the arc-shaped extrusion strip 21, the arc-shaped limiting plate 20 and the pressure rod 22, the filter screen 17 and the moving ring 16 can be easily disassembled, making replacement and cleaning convenient.

[0019] Among them, the arc-shaped extrusion strip 21 is fixedly connected to a pad on the side near the moving ring 16. The pad is made of rubber. By setting the pad, when the arc-shaped extrusion strip 21 is inserted into the pressure rod 22, it can provide compression to make the pad dense and the gap between the arc-shaped limiting plate 20 and the arc-shaped extrusion strip 21.

[0020] Among them, the hot air blower 14, the drive motor 5 and the electric push rod 7 are all commonly used devices in this field, and their operating principles are well known in the industry, so they will not be described in detail here.

[0021] Working principle: The material enters the receiving cylinder 3 through the feed pipe 4. At this time, the hot air blower 14 starts and drives the hot air to enter through the annular pipe 15 and the nozzle. During the falling process, the material is dispersed and left on the upper side of the filter screen 17 by the turntable 10. Then, the drive motor 5 and the electric push rod 7 run, which can make the turntable 10 rotate and move up and down, thereby knocking and squeezing the filter screen 17. The filter screen 17 vibrates under the cooperation of the first spring rod 23 and the moving ring 16, so that the material continues to fall. At this time, the hot air can be discharged through the air outlet pipe. After the material is conveyed and dried, the pressure rod 22 can be removed and the arc-shaped extrusion strip 21 can be removed. The moving ring 16 can be manually pulled to move and the filter screen 17 can be removed and cleaned.

[0022] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0023] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An injection molding machine feeding device comprising an injection molding cylinder (1), a feed inlet (2), a receiving cylinder (3) and a feed pipe (4), characterized in that, A drive motor (5) is fixedly connected to the center of the upper end of the receiving cylinder (3). A rotating cylinder (6) is fixedly connected to the output end of the drive motor (5). An electric push rod (7) is fixedly connected inside the rotating cylinder (6). A connecting plate (8) is fixedly connected to the output end of the electric push rod (7). A connecting rod (9) is fixedly connected to the bottom end of the connecting plate (8). A turntable (10) is fixedly connected to the bottom end of the connecting rod (9). A pressure plate (11) is fixedly connected to the bottom end of the turntable (10). A first connecting ring (12) is fixedly connected inside the receiving cylinder (3). A second connecting ring (13) is fixedly connected to the bottom side of the first connecting ring (12) of the receiving cylinder (3). 3) A hot air blower (14) is fixedly connected to the outside of the second connecting ring (13). One end of the hot air blower (14) is fixedly connected to a pipe and the other end of the pipe is fixedly connected to the annular pipe (15). The nozzles are evenly fixedly connected to the inside of the annular pipe (15). An air outlet pipe is fixedly connected to the upper side of the receiving cylinder (3). A moving ring (16) is in contact between the first connecting ring (12) and the second connecting ring (13). A first spring rod (23) is fixedly connected to each of the four sides of the moving ring (16) that are far apart from each other. A filter screen (17) is sleeved on the first spring rod (23). A limit plate is fixedly connected to the upper side of the filter screen (17) of the first spring rod (23).

2. An injection molding machine material delivery apparatus as claimed in claim 1 wherein, The rotating drum (6) is fixedly connected to four sides with a second spring rod (18), and the bottom end of the second spring rod (18) is fixedly connected to a protrusion. The second spring rod (18) is movably inserted into the connecting plate (8).

3. An injection molding machine material delivery apparatus as claimed in claim 1 wherein, The turntable (10) has a conical surface at its upper end, and combing strips (19) are uniformly fixedly connected to the turntable (10) on the conical surface.

4. An injection molding machine material delivery apparatus as claimed in claim 1 wherein, The receiving cylinder (3) has an arc-shaped groove between the first connecting ring (12) and the second connecting ring (13). The moving ring (16) is inserted into the arc-shaped groove. The receiving cylinder (3) is fixedly connected to the arc-shaped limiting plate (20) on both the upper and lower sides of the arc-shaped groove. The arc-shaped limiting plate (20) is threaded with a pressure rod (22). The pressure rod (22) is sleeved with an arc-shaped extrusion strip (21). The arc-shaped extrusion strip (21) corresponds to the moving ring (16).

5. An injection molding machine material delivery apparatus as claimed in claim 4 wherein, The arc-shaped extrusion strip (21) is fixedly connected to a pad strip on the side near the moving ring (16), and the pad strip is made of rubber.

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