Injection molding machine with temperature control system

Abstract

The invention discloses an injection molding machine with a temperature control system, and relates to the technical field of injection molding machines, the injection molding machine comprises a base, the top of the base is fixedly provided with an extruder, the top of the extruder is fixedly provided with a runner pipe, the top of the runner pipe is fixedly provided with a hopper, and the outer wall of the hopper is provided with a chute; a conveying pipe is fixedly installed on the outer wall of the extruder, and a temperature control chamber is fixedly installed at the end, away from the extruder, of the conveying pipe. Through the arrangement of the control device, plastic particles on the top are poured into a flowing pipe, after too much plastic particles are poured, a control module is closed, and the control module drives a rotating rod to close a discharging plate; after the plastic particles at the bottom are completely melted, the operation is repeated, through the arrangement of the discharging plate, the flow of the plastic particles entering the runner pipe is dynamically adjusted, it is ensured that the plastic particles can evenly and orderly enter the extruder, and therefore the problem that melting is not uniform due to the fact that the material amount is not uniform is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding machines, in particular to an injection molding machine with a temperature control system. Background Art

[0002] With the advancement of Industry 4.0 and the development of intelligent manufacturing, higher requirements are placed on the precision, efficiency and intelligence level of injection molding machines. Temperature, as one of the key parameters in the injection molding process, directly affects the quality and production efficiency of the product. Therefore, a temperature automation control system with real-time monitoring, precise control and intelligent adjustment functions has become an urgent need in the market.

[0003] The patent with the patent announcement number CN218660344U discloses a temperature control structure of the barrel of an injection molding machine. The patent provides a temperature control structure of the barrel of an injection molding machine, including an injection molding machine, a fixed block is installed at the bottom of the injection molding machine, an alarm is installed on the surface of the injection molding machine, a feed port is opened on the surface of the injection molding machine, a filtering mechanism is arranged inside the feed port, a fixed seat is fixedly installed on one side of the injection molding machine, and a temperature control mechanism is arranged on the surface of the fixed seat. The temperature control structure of the barrel of the injection molding machine, through the setting of the temperature control mechanism, when the temperature of the barrel is too high and needs to be controlled, the water pump is started, and the water pump pumps the water inside the water tank to the inside of the water outlet pipe through the outlet pipe. Since the outlet pipe is wound around the surface of the barrel of the injection molding machine, when the water pump is started, the water inside the return pipe flows continuously on the surface of the barrel, and can take away the temperature of the barrel at the same time, so as to prevent the temperature of the barrel from being too high and affecting the normal use of the injection molding machine.

[0004] In the above patent, however, the current injection molding machine barrel temperature control structure has the following problem: after the device pours the plastic particles into the barrel, it is not convenient to control the pouring amount of the plastic particles well, which will cause uneven dissolution of the plastic particles in the subsequent melting process. Therefore, we propose an injection molding machine with a temperature control system. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an injection molding machine with a temperature control system, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an injection molding machine with a temperature control system, comprising a base, an extruder is fixedly installed on the top of the base, a circulation pipe is fixedly installed on the top of the extruder, a hopper is fixedly installed on the top of the circulation pipe, and a slide groove is provided on the outer wall of the hopper, a conveying pipe is fixedly installed on the outer wall of the extruder, a temperature control chamber is fixedly installed on the end of the conveying pipe away from the extruder, an injection molding machine body is fixedly installed on the outer wall of the temperature control chamber, a control device for controlling feeding is arranged inside the hopper, and a scraping device for preventing electrostatic adsorption of plastic particles is arranged on the inner wall of the hopper.

[0007] According to the above technical solution, the control device includes a control module, the control module is installed on the outer wall of the hopper, the rotating rod is rotatably installed on the output end of the control module, and the unloading plate is installed on the outer wall of the rotating rod.

[0008] According to the above technical solution, the control module is fixedly connected to the hopper, the rotating rod is driven by the control module, and the unloading plate is fixedly connected to the rotating rod.

[0009] According to the above technical solution, the control device also includes a fixed plate, which is installed on the inner wall of the hopper, the sliding rod passes through and is slidably installed on the top of the fixed plate, the top rod is installed on the top of the sliding rod, the blocking plate is installed on the bottom of the sliding rod, and the spring is arranged between the fixed plate and the top rod.

[0010] According to the above technical solution, the fixed plate is fixedly connected to the hopper, the push rod is fixedly connected to the top of the slide rod, and the push rod is located on the movement trajectory of the unloading plate, and the blocking plate is fixedly connected to the bottom of the slide rod.

[0011] According to the above technical solution, the scraping device includes a fixed block, which is installed on the top of the unloading plate, the rotating shaft 1 is installed on the inner wall of the fixed block, the bottom end of the connecting rod is rotatably installed on the outer wall of the rotating shaft 1, the sliding block is slidably installed on the inner wall of the slide groove of the hopper, and the top end of the connecting rod is fixedly installed on the outer wall of the sliding block, the rotating shaft 2 is installed on the inner wall of the sliding block, and the scraper is installed on both side walls of the sliding block.

[0012] According to the above technical solution, the outer shell is fixedly mounted on the outer wall of the hopper chute, the top end of the spring is fixedly mounted on the side of the sliding block away from the inner wall of the hopper, the short rod is fixedly mounted on the outer wall of the scraper away from the sliding block, the square groove is opened on the inner wall of the hopper away from the sliding block, and the inclined plate is fixedly mounted on the inner wall of the square groove.

[0013] According to the above technical solution, the fixed block is fixedly connected to the top of the unloading plate, the rotating shaft 1 is fixedly connected to the inner wall of the fixed block, the rotating shaft 2 is fixedly connected to the sliding block, the scraper is fixedly connected to the side walls of the sliding block, and the end of the scraper away from the sliding block is elastically set, the spring sheet is elastically set, and the inclined plate is located on the movement trajectory of the short rod.

[0014] The present invention provides an injection molding machine with a temperature control system. It has the following beneficial effects:

[0015] (1) The invention pours the plastic particles at the top into the circulation tube through the setting of the control device. When too much is poured, the control module is turned off, and the control module drives the rotating rod to close the discharge plate. The operation is repeated after the plastic particles at the bottom are completely melted. Through the setting of the discharge plate, the flow rate of the plastic particles entering the circulation tube is dynamically adjusted to ensure that the plastic particles can enter the extruder evenly and orderly, thereby effectively solving the problem of uneven melting caused by uneven material quantity, so that the top rod drives the sliding rod to reset upward, and the sliding rod drives the blocking plate to reset upward. The blocking plate releases the blockage of the circulation tube, so that the plastic particles in the hopper can fall into the extruder to continue to melt, further ensuring the uniform supply and melting of the plastic particles, avoiding the problem of uneven melting caused by excessive material, and improving production efficiency and product quality stability.

[0016] (2) The invention sets a scraping device, in which the fixed block drives the rotating shaft 1 to move downward, the rotating shaft 1 drives the connecting rod to move downward, the connecting rod drives the rotating shaft 2 at the top to move downward, the rotating shaft 2 drives the sliding block to move downward, the sliding block drives the scraper to move downward, the scraper pushes the plastic particles attached to the inner wall of the hopper downward, effectively pushes away the plastic particles attached to the inner wall of the hopper, prevents the problem of particle accumulation caused by electrostatic adsorption, and ensures that the plastic particles can smoothly enter the circulation pipe. The elasticity of the scraper enables it to quickly rebound downward and return to its original position. The elastic surface at the front end of the scraper prevents some plastic particles with static electricity from being attached to the top surface of the scraper again through the airflow after being pushed downward, thereby significantly improving the working efficiency of the hopper of the injection molding machine body and the conveying effect of the plastic particles, avoiding the phenomenon of repeated accumulation of plastic particles, thereby ensuring the continuity and stability of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a bottom view schematic diagram of the overall structure of the present invention;

[0019] Figure 3 It is a cross-sectional schematic diagram of the overall structure of the present invention;

[0020] Figure 4 is a cross-sectional schematic diagram of a control device of the present invention;

[0021] Figure 5 is a cross-sectional schematic diagram of a scraping device of the present invention;

[0022] Figure 6 For the present invention Figure 5 The enlarged schematic diagram of point A in the middle;

[0023] Figure 7 For the present invention Figure 5A magnified schematic diagram of point B in the middle.

[0024] In the figure: 1. base; 11. extruder; 12. circulation pipe; 13. hopper; 14. conveying pipe; 15. temperature control chamber; 16. injection molding machine body; 2. control device; 21. control module; 22. rotating rod; 23. unloading plate; 24. fixed plate; 25. sliding rod; 26. ejector rod; 27. blocking plate; 28. spring; 3. scraping device; 31. fixed block; 32. rotating shaft 1; 33. connecting rod; 34. sliding block; 35. rotating shaft 2; 36. scraper; 37. outer shell; 38. spring; 39. short rod; 310. square groove; 311. inclined plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 4 An embodiment of the present invention is: an injection molding machine with a temperature control system, comprising a base 1, an extruder 11 is fixedly installed on the top of the base 1, a flow pipe 12 is fixedly installed on the top of the extruder 11, a hopper 13 is fixedly installed on the top of the flow pipe 12, and a slide groove is opened on the outer wall of the hopper 13, a conveying pipe 14 is fixedly installed on the outer wall of the extruder 11, a temperature control chamber 15 is fixedly installed on the end of the conveying pipe 14 away from the extruder 11, and an injection molding machine body 16 is fixedly installed on the outer wall of the temperature control chamber 15, plastic particles are poured into the hopper 13, the plastic particles enter the extruder 11 through the flow pipe 12, the temperature of the temperature control chamber 15 is set, and the plastic particles are transported to the inside of the injection molding machine body 16 through the conveying pipe 14. When the plastic particles are poured into the hopper 13, the amount of material entering the flow pipe 12 cannot be controlled, which will cause the problem of uneven melting of the plastic particles. A control device 2 for controlling feeding is arranged inside the hopper 13, and a scraping device 3 for preventing electrostatic adsorption of plastic particles is arranged on the inner wall of the hopper 13.

[0027] The control device 2 includes a control module 21, which is installed on the outer wall of the hopper 13. At this time, the control module 21 is turned on, the control module 21 is fixedly connected to the hopper 13, and the rotating rod 22 is rotatably installed at the output end of the control module 21. The rotating rod 22 is driven by the control module 21, and the control module 21 drives the rotating rod 22 to rotate. The unloading plate 23 is installed on the outer wall of the rotating rod 22, and the unloading plate 23 is fixedly connected to the rotating rod 22. The rotating rod 22 drives the unloading plate 23 to rotate, and the unloading plate 23 is rotated downward to open, and the plastic particles on the top are poured into the circulation pipe 12. When too much is poured, the control module 21 is closed, and the control module 21 drives the rotating rod 22 to close the unloading plate 23. The operation is repeated after the plastic particles at the bottom are completely melted. Through the setting of the unloading plate 23, dynamic adjustment of the flow rate of plastic particles entering the circulation pipe 12 is realized, ensuring that the plastic particles can enter the extruder 11 evenly and orderly, thereby effectively solving the problem of uneven melting caused by uneven material quantity.

[0028] The control device 2 also includes a fixed plate 24, which is mounted on the inner wall of the hopper 13, and the fixed plate 24 is fixedly connected to the hopper 13. The slide bar 25 passes through and is slidably mounted on the top of the fixed plate 24. The push rod 26 is mounted on the top of the slide bar 25, and the push rod 26 is fixedly connected to the top of the slide bar 25. The push rod 26 is located on the movement trajectory of the lower plate 23. When the lower plate 23 is opened downward, the lower plate 23 contacts the push rod 26, so that the push rod 26 drives the slide bar 25 to move downward. The blocking plate 27 is mounted on the bottom of the slide bar 25, and the blocking plate 27 is fixedly connected to the bottom of the slide bar 25. The spring 28 is arranged between the fixed plate 24 and the push rod 26, and the slide bar 25 drives the blocking plate 27 to move downward , the blocking plate 27 blocks the mouth of the circulation pipe 12, so that the plastic particles falling into the extruder 11 can be melted first, while the plastic particles that have not fallen into the circulation pipe 12 and are located above the blocking plate 27 are in a waiting stage. After the unloading plate 23 is closed, the spring 28 will resist the push rod 26, so that the push rod 26 drives the slide bar 25 to reset upward, and the slide bar 25 drives the blocking plate 27 to reset upward, and the blocking plate 27 releases the blockage of the circulation pipe 12, so that the plastic particles in the hopper 13 can fall into the extruder 11 and continue to melt, further ensuring the uniform supply and melting of the plastic particles, avoiding the problem of uneven melting due to excessive material, and improving production efficiency and product quality stability.

[0029] When the present embodiment is working, the plastic particles are poured into the hopper 13, and the plastic particles enter the extruder 11 through the circulation pipe 12. The temperature of the temperature control chamber 15 is set, and the plastic particles are conveyed to the inside of the injection molding machine body 16 through the conveying pipe 14. When the plastic particles are poured into the hopper 13, the amount of material entering the circulation pipe 12 cannot be controlled, which may cause the problem of uneven melting of the plastic particles. At this time, the control module 21 is turned on, and the control module 21 drives the rotating rod 22 to rotate, and the rotating rod 22 drives the unloading plate 23 to rotate. The unloading plate 23 is rotated downward to open and pour the plastic particles on the top into the circulation pipe 12. When too much is poured, the control module 21 is turned off, and the control module 21 drives the rotating rod 22 to close the unloading plate 23. The operation is repeated after the plastic particles at the bottom are completely melted. By setting the unloading plate 23, the flow rate of the plastic particles entering the circulation pipe 12 is dynamically adjusted to ensure that the plastic particles can enter the extruder 11 evenly and orderly, thereby effectively solving the problem of uneven melting caused by uneven material amount.

[0030] When the lower plate 23 is opened downward, the lower plate 23 hits the push rod 26, so that the push rod 26 drives the slide bar 25 to move downward, and the slide bar 25 drives the blocking plate 27 to move downward, and the blocking plate 27 blocks the pipe mouth of the circulation pipe 12, so that the plastic particles falling into the extruder 11 can be melted first, while the plastic particles that have not fallen into the circulation pipe 12 and are located above the blocking plate 27 are in a waiting stage. After the lower plate 23 is closed, the spring 28 will hit the push rod 26, so that the push rod 26 drives the slide bar 25 to reset upward, and the slide bar 25 drives the blocking plate 27 to reset upward, and the blocking plate 27 releases the blockage of the circulation pipe 12, so that the plastic particles inside the hopper 13 can fall into the extruder 11 and continue to melt, further ensuring the uniform supply and melting of the plastic particles, avoiding the problem of uneven melting caused by excessive material, and improving production efficiency and product quality stability.

[0031] See also Figure 5-Figure 7On the basis of the above embodiment, in another embodiment of the present invention, the scraping device 3 includes a fixed block 31, which is installed on the top of the unloading plate 23, and the fixed block 31 is fixedly connected to the top of the unloading plate 23. After the plastic particles are poured into the inner wall of the hopper 13, the plastic particles will directly collide and rub against the inner wall, thereby causing static electricity to be generated on the surface of the plastic particles and attached to the inner wall of the hopper 13. When the unloading plate 23 rotates downward, the unloading plate 23 drives the fixed block 31 to move downward, and the rotating shaft 1 32 is installed on the inner wall of the fixed block 31. The rotating shaft 1 32 is fixedly connected to the inner wall of the fixed block 31. The fixed block 31 drives the rotating shaft 1 32 to move downward, and the bottom end of the connecting rod 33 is rotatably installed on the outer wall of the rotating shaft 1 32. The rotating shaft 1 32 drives the connecting rod 33 to move downward, and the sliding block 34 is slidably installed in the hopper. 13, and the top end of the connecting rod 33 is fixedly mounted on the outer wall of the sliding block 34, the rotating shaft 2 35 is mounted on the inner wall of the sliding block 34, the rotating shaft 2 35 and the sliding block 34 are fixedly connected, the connecting rod 33 drives the rotating shaft 2 35 at the top to move downward, the rotating shaft 2 35 drives the sliding block 34 to move downward, the scraper 36 is mounted on the side walls of the sliding block 34, the scraper 36 and the side walls of the sliding block 34 are fixedly connected, and the end of the scraper 36 away from the sliding block 34 is elastically set, the sliding block 34 drives the scraper 36 to move downward, the scraper 36 pushes the plastic particles attached to the inner wall of the hopper 13 downward, effectively pushes the plastic particles attached to the inner wall of the hopper 13 away, prevents the problem of particle accumulation caused by electrostatic adsorption, and ensures that the plastic particles can smoothly enter the circulation pipe 12.

[0032] The housing 37 is fixedly mounted on the outer wall of the chute of the hopper 13, the top of the spring piece 38 is fixedly mounted on the side of the sliding block 34 away from the inner wall of the hopper 13, the spring piece 38 is elastically arranged, the short rod 39 is fixedly mounted on the outer wall of the scraper 36 away from the end of the sliding block 34, when the scraper 36 moves downward, the scraper 36 drives the short rod 39 to move downward, the square groove 310 is opened on the inner wall of the hopper 13 away from the sliding block 34, the inclined plate 311 is fixedly mounted on the inner wall of the square groove 310, the inclined plate 311 is located on the movement trajectory of the short rod 39, and the short rod 39 abuts against the inner wall of the square groove 310 The inclined plate 311 on the wall makes the elastic surface of the scraper 36 bend upward. After crossing the gap between the inclined plate 311 and the square groove 310, the elasticity of the scraper 36 makes it quickly bounce back to its original position. The elastic surface at the front end of the scraper 36 pushes some plastic particles with static electricity downward to prevent the plastic particles from attaching to the top surface of the scraper 36 again through the airflow, which significantly improves the working efficiency of the hopper 13 of the injection molding machine body 16 and the conveying effect of the plastic particles, avoids the repeated accumulation of plastic particles, and ensures the continuity and stability of production.

[0033] When the present embodiment is working, after the plastic particles are poured into the inner wall of the hopper 13, the plastic particles will directly collide and rub against the inner wall, thereby causing static electricity to be generated on the surface of the plastic particles and adhere to the inner wall of the hopper 13. When the lower plate 23 rotates downward, the lower plate 23 drives the fixed block 31 to move downward, the fixed block 31 drives the rotating shaft 1 32 to move downward, the rotating shaft 1 32 drives the connecting rod 33 to move downward, the connecting rod 33 drives the rotating shaft 2 35 at the top to move downward, the rotating shaft 2 35 drives the sliding block 34 to move downward, the sliding block 34 drives the scraper 36 to move downward, the scraper 36 pushes the plastic particles attached to the inner wall of the hopper 13 downward, and the spring piece 38 can quickly reset it, effectively pushing away the plastic particles attached to the inner wall of the hopper 13, preventing the problem of particle accumulation caused by electrostatic adsorption, and ensuring that the plastic particles can smoothly enter the circulation pipe 12.

[0034] When the scraper 36 moves downward, the scraper 36 drives the short rod 39 to move downward, and the short rod 39 contacts the inclined plate 311 on the inner wall of the square groove 310, so that the elastic surface of the scraper 36 bends upward. After crossing the gap between the inclined plate 311 and the square groove 310, the elasticity of the scraper 36 causes it to quickly rebound downward to its original position. The elastic surface at the front end of the scraper 36 pushes some plastic particles with static electricity downward to prevent the plastic particles from attaching to the top surface of the scraper 36 again through the airflow, which significantly improves the working efficiency of the hopper 13 of the injection molding machine body 16 and the conveying effect of the plastic particles, avoids the repeated accumulation of plastic particles, and thus ensures the continuity and stability of production.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding machine with a temperature control system, comprising a base (1), characterized in that: An extruder (11) is fixedly mounted on the top of the base (1), a circulation pipe (12) is fixedly mounted on the top of the extruder (11), a hopper (13) is fixedly mounted on the top of the circulation pipe (12), and a slide groove is provided on the outer wall of the hopper (13), a conveying pipe (14) is fixedly mounted on the outer wall of the extruder (11), a temperature control chamber (15) is fixedly mounted on the end of the conveying pipe (14) away from the extruder (11), an injection molding machine body (16) is fixedly mounted on the outer wall of the temperature control chamber (15), a control device (2) for controlling material loading is arranged inside the hopper (13), and a scraping device (3) for preventing electrostatic adsorption of plastic particles is arranged on the inner wall of the hopper (13).

2. The injection molding machine with a temperature control system according to claim 1, characterized in that: The control device (2) comprises a control module (21), wherein the control module (21) is mounted on the outer wall of the hopper (13), the rotating rod (22) is rotatably mounted on the output end of the control module (21), and the unloading plate (23) is mounted on the outer wall of the rotating rod (22).

3. The injection molding machine with a temperature control system according to claim 2, characterized in that: The control module (21) is fixedly connected to the hopper (13), the rotating rod (22) is driven by the control module (21), and the unloading plate (23) is fixedly connected to the rotating rod (22).

4. The injection molding machine with a temperature control system according to claim 3, characterized in that: The control device (2) also includes a fixed plate (24), the fixed plate (24) is installed on the inner wall of the hopper (13), the sliding rod (25) passes through and is slidably installed on the top of the fixed plate (24), the top rod (26) is installed on the top of the sliding rod (25), the blocking plate (27) is installed at the bottom of the sliding rod (25), and the spring (28) is arranged between the fixed plate (24) and the top rod (26).

5. The injection molding machine with a temperature control system according to claim 4, characterized in that: The fixed plate (24) is fixedly connected to the hopper (13), the push rod (26) is fixedly connected to the top of the slide rod (25), and the push rod (26) is located on the movement track of the unloading plate (23), and the blocking plate (27) is fixedly connected to the bottom of the slide rod (25).

6. The injection molding machine with a temperature control system according to claim 5, characterized in that: The scraping device (3) comprises a fixed block (31), wherein the fixed block (31) is mounted on the top of the unloading plate (23), the rotating shaft 1 (32) is mounted on the inner wall of the fixed block (31), the bottom end of the connecting rod (33) is rotatably mounted on the outer wall of the rotating shaft 1 (32), the sliding block (34) is slidably mounted on the inner wall of the slide groove of the hopper (13), and the top end of the connecting rod (33) is fixedly mounted on the outer wall of the sliding block (34), the rotating shaft 2 (35) is mounted on the inner wall of the sliding block (34), and the scraper (36) is mounted on the side walls of the sliding block (34).

7. The injection molding machine with a temperature control system according to claim 6, characterized in that: The shell (37) is fixedly mounted on the outer wall of the hopper (13) slideway, the top end of the spring (38) is fixedly mounted on the side of the sliding block (34) away from the inner wall of the hopper (13), the short rod (39) is fixedly mounted on the outer wall of the scraper (36) away from the sliding block (34), the square groove (310) is formed on the inner wall of the hopper (13) away from the sliding block (34), and the inclined plate (311) is fixedly mounted on the inner wall of the square groove (310).

8. The injection molding machine with a temperature control system according to claim 7, characterized in that: The fixed block (31) is fixedly connected to the top of the blanking plate (23), the rotating shaft 1 (32) is fixedly connected to the inner wall of the fixed block (31), the rotating shaft 2 (35) is fixedly connected to the sliding block (34), the scraper (36) is fixedly connected to the side walls of the sliding block (34), and the end of the scraper (36) away from the sliding block (34) is elastically set, the spring sheet (38) is elastically set, and the inclined plate (311) is located on the movement trajectory of the short rod (39).

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