Sealing ring injection molding equipment

Abstract

The invention relates to the field of injection molding equipment, in particular to sealing ring injection molding equipment which is characterized in that a plurality of I-shaped bases are mounted in a fixed mold, a plurality of column sleeves are symmetrically mounted on the upper portions of the I-shaped bases in a rectangular shape, inner pipes are arranged in the column sleeves, charging barrels are mounted at the upper ends of the interiors of the inner pipes, and injection molding openings are connected to the upper portions of the charging barrels; and a spiral blade is mounted at the bottom through a driving shaft and is driven by a driving motor to rotate. According to the device, after a molten material enters the I-shaped base, the cutting blade and the arc-shaped blade mechanism are driven to rotate, so that lumps and floccules in the molten material are preliminarily stirred, the multiple linkage stirring mechanisms at the injection molding opening can rotate along with rotation of the arc-shaped blade mechanism, and the multiple stirring effect is achieved so as to improve the state of the molten material; and meanwhile, the arc-shaped blade mechanism can adaptively match the rotating speed according to the state of the melt, so that the melt in different states is accurately treated and improved, the agglomeration phenomenon is effectively reduced, the state of the melt is improved, and the forming quality is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding equipment, in particular to a sealing ring injection molding equipment. Background Art

[0002] At present, the production and manufacturing process of large sealing rings is mostly completed by injection molding. Although the traditional injection molding process can meet the basic production needs, in actual use, the traditional injection molding equipment still has some defects, such as: When the molten material enters the injection molding equipment, it often has insufficient fluidity due to the material's own properties and molecular structure, and is also accompanied by agglomeration between the materials. Traditional injection molding equipment is mostly not equipped with corresponding mechanisms to deal with this phenomenon, resulting in poor molten material state during injection molding, which makes the mold body molding quality low and defective, leading to low injection efficiency and low quality of the finished product. Summary of the Invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a sealing ring injection molding device.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A sealing ring injection molding device includes a fixed mold, wherein a plurality of I-shaped bases are installed inside the fixed mold, and a plurality of column sleeves are symmetrically installed on the upper part of the I-shaped base in a rectangular shape. An inner tube is provided inside the column sleeve, and a barrel is installed on the upper end of the inner part of the inner tube. The upper part of the barrel is connected to the injection port, and a spiral blade is installed on the bottom of the barrel through a drive shaft. The spiral blade is driven to rotate by a drive motor; The barrel is provided with a plurality of diversion chambers, each of which is interconnected at the top and merged to form a collecting chamber. A plurality of cutting blades are installed in each diversion chamber through a mounting shaft. A plurality of arc-shaped blades are coaxially mounted between each group of cutting blades. An adjustment plate is rotatably mounted on one end of each arc-shaped blade, and the adjustment plate contacts the molten material and generates an angular deflection. One end of the mounting shaft extends into the barrel and is connected to an adjusting disk, and a rotating seat 1 is rotatably connected to the adjusting disk through an annular groove. One end of the rotating seat 1 is connected to the rolling pin gear disk, and the other end is in friction contact with the inner wall of the adjusting disk through a friction plate; The pin gear disc is meshed with a plurality of limit pins in the middle of the mounting disc for transmission, and the mounting disc rotates coaxially with the synchronous transmission shaft. The top end of the transmission shaft extends out of the barrel and is fixedly connected to the stirring shaft. A plurality of stirring blades are provided on the outside of the stirring shaft, and the stirring blades are arranged in the collecting chamber. A rotating groove is provided on the upper part of the stirring shaft, and a connecting shaft is installed in the internal limit of the rotating groove. The bottom of the connecting shaft is connected to a spring, and the top end of the connecting shaft extends into the injection nozzle provided at the upper part of the barrel and is connected to a special-shaped stirring block. A needle is provided on the top of the special-shaped stirring block, and the needle is blocked in the injection port opened in the middle of the injection nozzle.

[0005] Preferably, a cover body is installed in the middle of the I-shaped base, and a plurality of material pipes are correspondingly installed inside the cover body, and the material pipes are connected to the feed cabin arranged at the bottom of the inner tube.

[0006] Preferably, the bottom of each column sleeve is fixedly mounted on the I-shaped base, and a mounting tube is provided on the top through the I-shaped top frame, an injection nozzle is provided in the middle of the mounting tube, an injection port is provided in the middle of the injection nozzle, and the injection port is connected to the mold cavity of the fixed mold.

[0007] Preferably, an injection nozzle is installed on the upper part of the barrel, and an injection port is opened in the middle of the injection nozzle, and the injection port is connected to the conveying chamber opened inside the injection nozzle, wherein a guide seat is installed in the middle of the bottom end of the conveying chamber, and a certain gap is left between the outer side of the guide seat and the inner wall of the conveying chamber to pass the material, and a groove is opened in the middle of the upper end of the guide seat, and a connecting shaft is rotatably installed in the groove through a sealing ring 2, and the upper end of the connecting shaft is connected to the special-shaped stirring block, the special-shaped stirring block is rhombus-shaped, and an annular protrusion is provided in the middle of the special-shaped stirring block.

[0008] Preferably, the barrel is installed on the upper side of the inner tube, and a plurality of diversion chambers are opened on the inner bottom side of the barrel. The bottom of each diversion chamber is connected to the interior of the inner tube, and the top of each barrel is connected to each other to form a collecting chamber. A stirring blade is installed in the collecting chamber, and the upper part of the collecting chamber is connected to the conveying chamber.

[0009] Preferably, the connecting shaft is installed in a rotating groove 1 opened in the middle of the stirring shaft through a key block limit clamp, wherein a key groove is opened in the rotating groove 1 to fit the key block, and a spring 1 is provided at the bottom of the rotating groove 1, and the other end of the spring 1 is connected to the bottom wall of the connecting shaft, wherein the bottom end of the connecting shaft is limited and installed in the rotating groove 1.

[0010] Preferably, the bottom end of the transmission shaft is rotatably mounted on the bottom end of the barrel, and a mounting plate is provided in the middle of the transmission shaft. A plurality of limit pins are provided in a circular equidistant array at the bottom end of the mounting plate, and the limit pins are engaged with the rolling pin gear for transmission.

[0011] Preferably, a movable groove is opened inside the connecting seat, and a rubber damping column is installed in the movable groove for limited sliding. The outer wall of the rubber damping column is in sliding friction contact with the inner wall of the movable groove, and the bottom wall of the rubber damping column is connected to the inside of the movable groove through spring 2, and a telescopic rod is connected to the middle part of the rubber damping column, and the telescopic rod is limited to sliding on the outside of the connecting seat.

[0012] Preferably, a main seat is installed on one side of the I-shaped base, and a feed port is provided at one end of the main seat. One end of the feed port is connected to the material pipe, and the other end is connected to the injection port provided outside the fixed mold.

[0013] Preferably, guide blocks are provided on both sides away from the cutting blade, a plurality of cutting grooves are provided in the middle of the guide block to fit the cutting blade, and one side of the guide block is provided with a slope to form a top closing structure.

[0014] The beneficial effects of the present invention are: In the present invention, after the molten material enters the I-shaped base, the cutting blade and the arc-shaped blade mechanism are driven to rotate, thereby performing preliminary stirring treatment on the lumps and flocs in the melt. The multiple sets of linked stirring mechanisms at the injection port will rotate as the arc-shaped blade mechanism rotates, achieving multiple stirring effects to improve the melt state. At the same time, the arc-shaped blade mechanism can adaptively match the rotation speed according to the melt state, thereby accurately processing and improving the melt in different states, effectively reducing agglomeration, improving the melt state, and ensuring molding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a sealing ring injection molding device proposed by the present invention; Figure 2 This is a schematic diagram of the internal structure of the fixed mold proposed by the present invention; Figure 3 This is a schematic diagram of the external structure of the I-shaped base proposed in the present invention; Figure 4 This is a schematic diagram of the internal structure of the inner tube proposed by the present invention; Figure 5 This is an exploded schematic diagram of the column sleeve installation structure proposed by the present invention; Figure 6 A cross-sectional view of the internal structure of the barrel proposed by the present invention; Figure 7 This is a schematic diagram of the internal structure of the diversion cavity proposed by the present invention; Figure 8 This is a schematic diagram of the cutting blade installation structure proposed by the present invention; Figure 9 This is a schematic diagram of the arc-shaped blade installation structure proposed by the present invention; Figure 10 This is a schematic diagram of the external structure of the curved blade proposed in the present invention; Figure 11 This is a schematic diagram of the internal structure of the connecting socket proposed by the present invention; Figure 12 This is a schematic diagram of the pin gear transmission structure proposed by the present invention; Figure 13 This is a schematic diagram of the pin gear connection structure proposed by the present invention; Figure 14 This is a schematic diagram of the internal structure of the injection nozzle proposed by the present invention; Figure 15 This is a schematic diagram of the structure of point A proposed by the present invention.

[0016] In the figure: 1, rotating groove 1; 101, key groove; 2, key block; 3, injection nozzle; 4, injection port; 5, spiral blade; 6, needle; 7, drive shaft; 8, main seat; 81, I-shaped base; 82, feed port; 9, column sleeve; 10, I-shaped top frame; 11, mounting cylinder; 12, special-shaped stirring block; 13, cover; 14, drive motor; 15, material pipe; 16, annular protrusion; 17, material barrel; 18, stirring shaft; 19, stirring blade; 20, electric heating ring; 21, curved blade; 211, adjustment plate; 212, guide hole; 213, rotating groove 2; 22, feed chamber; 23, inner pipe; 24, guide block; 2 5. Cutting groove; 26. Cutting blade; 261. Mounting shaft; 27. Diverter chamber; 28. Collecting chamber; 29. ​​Transmission shaft; 30. Rolling pin gear disc; 31. Mounting disc; 32. Limit pin; 33. Adjusting disc; 331. Annular groove; 34. Friction plate; 35. Sealing ring 1; 36. Rotating seat 1; 37. Connecting shaft; 38. Sealing ring 2; 39. Guide seat; 40. Conveying chamber; 41. Spring 1; 42. Rotating seat 2; 43. Connecting seat; 431. Movable groove; 44. Telescopic rod; 441. Rubber damping column; 45. Spring 2; 46. Moving mold; 47. Fixed mold; 471. Injection port; 472. Mold cavity. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Reference Figure 1-6 A sealing ring injection molding device includes a movable mold 46 and a fixed mold 47. The movable mold 46 and the fixed mold 47 are integrally assembled with an injection molding machine, and the injection molding machine drives the assembly to realize the combined mold injection molding process of the movable mold 46 and the fixed mold 47. The fixed mold 47 is provided with a mold cavity 472 to cooperate with the movable mold 46 to realize the injection molding operation of the sealing ring. A plurality of injection ports 4 are installed in the middle of the mold cavity 472; Among them, the movable mold 46 and the fixed mold 47 are conventional configurations in this field, and the specific operations and processes of their injection molding process are common knowledge to those skilled in the art and will not be explained again.

[0019] A plurality of I-shaped top frames 10 are provided inside the fixed mold 47. A plurality of mounting cylinders 11 are symmetrically mounted on the outer sides of the I-shaped top frames 10 in a rectangular shape. The bottom of each mounting cylinder 11 is connected to a column sleeve 9, and the bottom of the column sleeve 9 is connected to an I-shaped base 81. A main seat 8 is provided on one side of the middle of the I-shaped base 81. A feed port 82 is provided on one side of the main seat 8. The feed port 82 is connected to a material pipe 15 to convey the molten material into the feed chamber 22 inside the I-shaped base 81. The feed port 82 is connected to the injection port 471 outside the fixed mold 47 to introduce molten material.

[0020] Furthermore, a plurality of drive motors 14 are mounted on the bottom end of the I-shaped base 81. The output end of the drive motor 14 is connected to the drive shaft 7. The drive shaft 7 passes through the inner tube 23 provided inside the column sleeve 9 and is drivingly connected to the spiral blade 5. The spiral blade 5 is mounted inside the inner tube 23 via the drive shaft 7, and the top end of the drive shaft 7 is rotatably mounted on the bottom end of the barrel 17 provided inside the inner tube 23. The bottom of the inner tube 23 is connected to the feed chamber 22 , and one side of the feed chamber 22 is connected to the material pipe 15 .

[0021] Furthermore, a cover body 13 is provided at the bottom of the I-shaped base 81 , and a material pipe 15 is provided inside the cover body 13 . The discharge port of the material pipe 15 is connected to each inner tube 23 , and the feed end is connected to the feed port 82 of the main seat 8 .

[0022] Furthermore, a plurality of column sleeves 9 are installed on the upper part of the I-shaped base 81, and an inner tube 23 is installed inside each column sleeve 9. The outer wall of the inner tube 23 is surrounded by an electric heating ring 20. A barrel 17 is provided on the upper side of the inner tube 23, and a spiral blade 5 is installed on the lower side of the inner tube through a drive shaft 7. The top of the barrel 17 is connected to an injection nozzle 3, and an injection port 4 is provided in the middle of the injection nozzle 3 for injection and discharge. The injection nozzle 3 passes through the top of the column sleeve 9 and is installed in the injection port 4 opened in the middle of the installation cylinder 11. The inner wall of the injection port 4 is provided with a seal and is in extrusion contact with the injection nozzle 3 to ensure sealing performance.

[0023] Furthermore, a plurality of equal diversion chambers 27 are provided in the middle of the barrel 17 , and the top of each diversion chamber 27 is connected to the upper side of the barrel 17 to form a collecting chamber 28 , which is connected to the injection nozzle 3 .

[0024] Reference Figure 6-11 , guide blocks 24 are provided on both sides of the inner wall of each diversion cavity 27, and the guide blocks 24 make the diversion cavity 27 have a structure with a closed top in the middle, so that the material can be effectively introduced into the guide block 24; A cutting blade 26 is installed between the guide blocks 24 on both sides through the installation shaft 261. The cutting blade 26 can rotate through the installation shaft 261. The cutting blade 26 includes multiple groups of blades, and each group of blades fits into the cutting groove 25 opened on the guide blocks 24 on both sides.

[0025] Multiple groups of arc-shaped blades 21 are provided between each blade. A second rotation slot 213 is provided at one end of each arc-shaped blade 21. An adjustment plate 211 is rotatably mounted in the second rotation slot 213 via a pin. A telescopic rod 44 is rotatably mounted on one side of the adjustment plate 211 via a second rotation seat 42. The other end of the telescopic rod 44 is connected to a connecting seat 43 provided on the outer wall of the arc-shaped blade 21. Among them, one end of the telescopic rod 44 extends into the movable groove 431 opened inside the connecting seat 43, and a rubber damping column 441 is installed in the movable groove 431 for limited sliding. The outer wall of the rubber damping column 441 is in sliding friction contact with the inner wall of the movable groove 431, and the bottom wall of the rubber damping column 441 is connected to the inside of the movable groove 431 through the spring 2 45.

[0026] When the adjustment plate 211 rotates, the adjustment plate 211 converts the rotational displacement into a relative movement displacement between the telescopic rod 44 and the connecting seat 43 , and drives the rubber damping column 441 to move.

[0027] In actual application, the actual rotation angle of the adjustment plate 211 is less than 10°, and the vertical displacement converted to the telescopic rod 44 is small, so the additional horizontal offset generated is within a reasonable range for normal operation of the device.

[0028] A plurality of guide holes 212 are provided on the regulating plate 211 . The provision of the guide holes 212 helps to reduce the accumulation and retention of the molten material in the diversion chamber 27 , thereby improving the processing capacity of the cutting blade 26 and the stirring blade 19 .

[0029] Reference Figure 5-6 、 Figure 12-13 One end of the mounting shaft 261 is rotatably mounted on the inner wall of the diverter chamber 27, and the other end passes through the diverter chamber 27 and extends into the interior of the barrel 17, and is connected to the rolling pin gear disc 30 through the adjusting disc 33. The rolling pin gear disc 30 includes multiple groups of rolling pins, and each group of rolling pins is correspondingly meshed and installed with limit pins 32. The limit pins 32 are installed in a circular array at the bottom of the mounting disc 31. A transmission shaft 29 is provided in the middle of the mounting disc 31. The bottom end of the transmission shaft 29 is rotatably mounted inside the barrel 17, and the top end extends into the collecting chamber 28 and is connected to multiple groups of stirring blades 19.

[0030] A plurality of limiting pins 32 are provided on the outer side of the mounting plate 31 , and each limiting pin 32 is engaged with and drives a rolling pin gear plate 30 provided in each diversion cavity 27 .

[0031] Furthermore, a plurality of arc-shaped blades 21 are installed in the middle of the mounting shaft 261 , and the arc-shaped blades 21 are correspondingly installed between the cutting blades 26 , and the arc-shaped blades 21 , the cutting blades 26 , and the mounting shaft 261 rotate synchronously on the same axis.

[0032] Furthermore, one end of the mounting shaft 261 is fixedly connected to the adjusting disk 33, and an annular groove 331 is provided on the inner wall of the adjusting disk 33 to rotatably connect to the rotating seat 1 36, and the rotating seat 1 36 is connected to the rolling pin gear disk 30, and a friction plate 34 is installed inside the adjusting disk 33, and the friction plate 34 is in friction contact with the outer wall of the rotating seat 1 36.

[0033] Among them, a sealing ring 35 is provided at the rotation connection between the rotating seat 36 and the adjusting disk 33 to ensure the sealing during its rotation.

[0034] Reference Figure 14-15 The top end of the transmission shaft 29 extends into the collecting chamber 28 and is fixedly connected to the stirring shaft 18. A plurality of stirring blades 19 are provided on the outside of the stirring shaft 18, and the top end of the stirring shaft 18 is connected to the connecting shaft 37. The connecting shaft 37 extends into the injection nozzle 3 and is connected to the special-shaped stirring block 12. The special-shaped stirring block 12 has a diamond-like structure, and a circle of annular protrusions 16 is provided on the outside of the special-shaped stirring block 12, and a needle 6 is installed in the middle of the top end of the special-shaped stirring block 12, and the needle 6 is embedded in the middle of the injection port 4 opened in the middle of the injection nozzle 3.

[0035] Among them, the inner wall of the injection port 4 is provided with a sealing member, and in a natural state, the needle 6 and the injection port 4 are engaged and snap-fitted to realize static sealing.

[0036] Furthermore, a guide seat 39 is provided at the bottom end of the injection nozzle 3, and the guide seat 39 divides the interior of the injection nozzle 3 into a conveying chamber 40. The bottom end of the conveying chamber 40 is connected with the collecting chamber 28, and the top end is connected with the injection port 4, wherein the connecting shaft 37 passes through the middle of the guide seat 39 and extends into the conveying chamber 40, and a special-shaped stirring block 12 is fixedly installed on the top of the connecting shaft 37.

[0037] A second sealing ring 38 is provided at the rotation connection between the guide seat 39 and the connecting shaft 37 .

[0038] Furthermore, the connecting shaft 37 is installed in the rotating groove 1 opened in the middle of the stirring shaft 18 through the key block 2, wherein a key groove 101 is opened in the rotating groove 1 to fit the key block 2, and a spring 41 is provided at the bottom of the rotating groove 1, and the other end of the spring 41 is connected to the bottom wall of the connecting shaft 37, wherein the connecting shaft 37 rotates synchronously with the stirring shaft 18, and the connecting shaft 37 is freely retracted and retracted in the rotating groove 1 on the upper part of the stirring shaft 18 through the spring 41.

[0039] In this embodiment, the molten material enters the feed port 82 of the main base 8 through the main material port of the fixed mold 47, and then enters the multiple feed chambers 22 provided at the bottom of the I-shaped base 81 through the material pipe 15 inside the main base 8. Then, the molten material continues to fill the feed chambers 22 and the inner pipes 23. Synchronously, the driving motor 14 at the bottom of the I-shaped base 81 runs to drive the driving shaft 7 to rotate, and the spiral blades 5 rotate synchronously with the driving shaft 7 and transport the molten material upward under the spiral action to promote the flow of the molten material.

[0040] Multiple diversion chambers 27 arranged in the barrel 17 divert and guide the molten material. When the molten material enters the diversion chamber 27, the molten material is tilted and guided by the guide block 24 and flows concentratedly to the cutting blade 26. The arc-shaped blade 21 arranged in the middle of the cutting blade 26 has its concave arc surface facing downward and is in direct contact with the molten material, and rotates under the push of the molten material, thereby driving the cutting blade 26 and the mounting shaft 261 to rotate synchronously. The cutting blade 26 rotates and performs preliminary stirring and cutting operations on the molten material at the guide block 24 and the cutting groove 25, which can effectively cut and disperse the lumps and flocs inside the molten material, improve the overall flow performance of the molten material, and thus ensure the stability of the injection molding discharge.

[0041] During this process, as the spiral blade 5 continuously feeds the molten material, the arc surface formed by the arc blade 21 and the adjustment plate 211 captures and contacts the molten material, and as the flow speed of the molten material varies, the adjustment plate 211 rotates to a certain extent due to the different forces exerted by the molten material, and converts the rotational force into a pressing force of the telescopic rod 44 and the rubber damping column 441 on the spring 2 45. During this process, the adjustment plate 211 changes its angle, and the overall arc angle of the arc blade 21, that is, the angle of attack, changes, thereby affecting its efficiency in capturing the molten material and slightly changing its rotation speed to prevent unstable turbulence caused by too slow or too fast rotation speed, incomplete fusion of the molten material, etc., and achieves the function of dynamically changing the rotation speed according to the state of the molten material. The large arc angle allows the melt to stay in the concave arc for a longer time when it is initially viscous and prone to agglomeration, and generates greater thrust to achieve more efficient cutting and stirring efficiency; The small arc angle allows the material to pass through quickly and provides a faster rotation speed to increase fluidity.

[0042] Among them, the rubber damping column 441 will generate a damping force on the inner wall of the movable groove 431 during the movement process. This force will conflict with the compressed spring 2 45, and as the spring 2 45 slowly returns to its original position, the rubber damping column 441 will also slowly return to its original position and move in the opposite direction. Due to the setting of the rubber damping column 441, this process is relatively stable and smooth, thereby achieving the rotation stability of the adjustment plate 211.

[0043] As the mounting shaft 261 rotates, the mounting shaft 261 synchronously drives the rolling pin gear disc 30 to rotate, and the rolling pin gear disc 30 engages and transmits with the limit pin 32 provided inside the barrel 17. The rolling pin gear disc 30 includes rolling pins arranged in a ring array. As the rolling pin gear disc 30 rotates, the rolling pins engage and transmit with the limit pin 32 provided at the bottom of the mounting disc 31, so that the two realize power transmission. At this time, the mounting disc 31 rotates and synchronously drives the transmission shaft 29 to rotate. The transmission shaft 29 drives the stirring shaft 18 in the collecting chamber 28 to rotate, and the stirring blade 19 performs secondary stirring and dispersion on the molten material entering the collecting chamber 28. At this time, the molten material has reached the optimal injection molding state after the secondary stirring and dispersion.

[0044] Then, the molten material will continue to be transported to the injection nozzle 3 at the top of the barrel 17, and will be ejected through the injection port 4. A delivery cavity 40 is provided inside the injection nozzle 3. The middle part of the delivery cavity 40 is divided into the delivery cavity 40 by a guide seat 39, so that the molten material enters at a position close to the outside. Moreover, since the upper part of the delivery cavity 40 is tapered, the molten material will be concentratedly squeezed at the upper part of the delivery cavity 40 and generate extrusion force to both sides. At this time, the special-shaped stirring block 12 provided inside the delivery cavity 40 is pushed downward by the molten material and drives the needle 6 to separate from the injection port 4. The injection port 4 opens and discharges the molten material. Since the bottom of the special-shaped stirring block 12 is synchronously driven with the stirring shaft 18 through the connecting shaft 37, when the stirring shaft 18 rotates, the special-shaped stirring block 12 rotates synchronously and stirs the molten material at the injection nozzle 3 through the annular protrusion 16 arranged on the outside thereof, thereby improving the fluidity at the injection nozzle 3, and when the special-shaped stirring block 12 is pressed down, the special-shaped stirring block 12 drives the connecting shaft 37 to be pressed down into the rotating groove 1 opened on the upper part of the stirring shaft 18, and compresses the spring 41 arranged inside it, and then after the injection molding is completed, the special-shaped stirring block 12 is tightened and reset by the spring 41 to ensure the sealing of the injection port 4.

[0045] Among them, in actual use, under the action of molten material extrusion, the special-shaped stirring block 12 is squeezed downward by the molten material due to its diamond-like structure, and the molten material is discharged from the injection port 4. At this time, the molten material will be discharged through the injection port 4 opened in the middle of the mounting tube 11, and the molten material will be sent into the mold cavity to complete the injection molding process.

[0046] Among them, in actual use, when the molten material enters each diversion cavity 27, each group of rolling pin gear discs 30 will be transmitted. At this time, the limit pin 32 set at the bottom of the mounting plate 31 engages with multiple groups of rolling pin gear discs 30. When the pushing force generated in different diversion cavities 27 is different, it will definitely cause inconsistent rotation speeds of the mounting shaft 261. At this time, the friction plate 34 set inside the adjusting plate 33 can effectively buffer. During normal transmission, the friction plate 34 and the corresponding rotating seat 36 rub to ensure that the two are synchronously connected, and when any rolling pin gear disc 30 rotates inconsistently, the friction plate 34 rotates and rubs with the rotating seat 36 under the action of external force to compensate for the rotation loss.

[0047] Among them, in actual use, sealing ring 1 35 and sealing ring 2 38 ensure sealing performance. Setting seals to ensure the normal operation of the equipment is a conventional configuration in this field and will not be explained. The specific seal models and configurations are common knowledge among technicians in this field.

[0048] It should also be noted that the outer wall of the inner tube 23 is provided with an electric heating ring 20, which performs preliminary heating on the molten material in the tube to ensure that the molten material is always at a suitable working temperature and avoid pushing the material, sticking to the wall, etc. caused by low temperature.

[0049] The molten material enters the inner tube 23 through the I-shaped base 81 and is transported to the barrel 17 by the spiral blade 5. The cutting blade 26 and the arc-shaped blade 21 provided in the barrel 17 are passively rotated by the thrust of the molten material, thereby stirring and dispersing the lumps and flocs in the molten material. Then, the stirring blade 19 provided in the middle of the barrel 17 rotates and stirs synchronously through the transmission mechanism, effectively ensuring the fluidity of the molten material, reducing the agglomeration of the molten material, avoiding uneven material discharge, poor molding quality, and the like, and effectively improving the injection molding quality.

[0050] At the same time, a special-shaped stirring block 12 is still provided at the injection port 4 and rotates synchronously with the stirring shaft 18. The special-shaped stirring block 12 drives the fluidity of the molten material at the injection port 4 to ensure its stability and smoothness during discharge.

[0051] At the same time, by means of the adjustment plate 211 provided on the curved blade 21 in conjunction with the telescopic rod 44, the rubber damping column 441, the connecting seat 43 and other components, the adjustment plate 211 can be adjusted to a certain angle to change the angle of attack, thereby adapting to melts with different flow rates, and avoiding situations such as unstable melts or unstable rotation of the curved blade 21 caused by too high or too low rotation speed.

[0052] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A sealing ring injection molding device, comprising a fixed mold (47), characterized in that: A plurality of I-shaped bases (81) are installed inside the fixed mold (47), and a plurality of column sleeves (9) are symmetrically installed on the upper part of the I-shaped base (81) in a rectangular shape. An inner tube (23) is provided inside the column sleeve (9), and a barrel (17) is installed at the upper end of the inner tube (23). The upper part of the barrel (17) is connected to the injection port (4), and a spiral blade (5) is installed at the bottom through a drive shaft (7). The spiral blade (5) is driven to rotate by a drive motor (14); The barrel (17) is provided with a plurality of diversion chambers (27), each of which is interconnected at the top and merged to form a collecting chamber (28), and a plurality of cutting blades (26) are installed in each diversion chamber (27) via a mounting shaft (261), and a plurality of arc-shaped blades (21) are coaxially mounted between each group of cutting blades (26), and an adjustment plate (211) is rotatably mounted at one end of each arc-shaped blade (21), and the adjustment plate (211) contacts the molten material and generates an angular deflection; One end of the mounting shaft (261) extends into the interior of the barrel (17) and is connected to an adjusting disk (33). The interior of the adjusting disk (33) is rotatably connected to a rotating seat (36) via an annular groove (331). One end of the rotating seat (36) is connected to the rolling pin gear disk (30), and the other end is in frictional contact with the inner wall of the adjusting disk (33) via a friction plate (34). The pin gear disc (30) is meshed with a plurality of limit pins (32) in the middle of the mounting disc (31) for transmission. The mounting disc (31) rotates coaxially with the synchronous transmission shaft (29). The top end of the transmission shaft (29) extends out of the barrel (17) and is fixedly connected to the stirring shaft (18). A plurality of stirring blades (19) are provided on the outside of the stirring shaft (18). The stirring blades (19) are provided in the collecting chamber (28). A rotating groove (1) is provided on the upper portion of the stirring shaft (18), and a connecting shaft (37) is installed in the internal limit of the rotating groove (1). The bottom of the connecting shaft (37) is connected to a spring (41), and the top end of the connecting shaft (37) extends into the injection nozzle (3) provided on the upper portion of the barrel (17) and is connected to a special-shaped stirring block (12). A needle (6) is provided on the top of the special-shaped stirring block (12), and the needle (6) is blocked in the injection port (4) provided in the middle of the injection nozzle (3).

2. The sealing ring injection molding equipment according to claim 1, characterized in that: A cover body (13) is installed in the middle of the I-shaped base (81), and a plurality of material pipes (15) are correspondingly installed inside the cover body (13). The material pipes (15) are communicated with a feed chamber (22) provided at the bottom of the inner pipe (23).

3. The sealing ring injection molding equipment according to claim 1, characterized in that: The bottom of each column sleeve (9) is fixedly mounted on an I-shaped base (81), and a mounting cylinder (11) is provided on the top through an I-shaped top frame (10). An injection nozzle (3) is provided in the middle of the mounting cylinder (11), and an injection port (4) is provided in the middle of the injection nozzle (3). The injection port (4) is connected to the mold cavity (472) of the fixed mold (47).

4. The sealing ring injection molding equipment according to claim 1, characterized in that: An injection nozzle (3) is installed on the upper part of the barrel (17), and an injection port (4) is provided in the middle of the injection nozzle (3). The injection port (4) is communicated with a conveying cavity (40) provided inside the injection nozzle (3), wherein a guide seat (39) is installed in the middle of the bottom end of the conveying cavity (40), and a certain gap is left between the outer side of the guide seat (39) and the inner wall of the conveying cavity (40) to allow the material to pass through, and a groove is provided in the middle of the upper end of the guide seat (39), and a connecting shaft (37) is rotatably installed in the groove through a sealing ring (38), and the upper end of the connecting shaft (37) is connected to the special-shaped stirring block (12), the special-shaped stirring block (12) is rhombus-shaped, and an annular protrusion (16) is provided in the middle of the special-shaped stirring block (12).

5. The sealing ring injection molding equipment according to claim 1, characterized in that: The barrel (17) is mounted on the upper inner side of the inner tube (23), and a plurality of diversion chambers (27) are provided on the inner bottom side of the barrel (17). The bottom of each diversion chamber (27) is communicated with the inner inner tube (23), and the tops of each barrel (17) are communicated with each other to form a collecting chamber (28). A stirring blade (19) is mounted in the collecting chamber (28), and the upper part of the collecting chamber (28) is communicated with the conveying chamber (40).

6. The sealing ring injection molding equipment according to claim 1, characterized in that: The connecting shaft (37) is mounted in a rotating groove (1) opened in the middle of the stirring shaft (18) through a key block (2) for limiting engagement, wherein a key groove (101) is opened in the rotating groove (1) to fit the key block (2), and a spring (41) is provided at the bottom of the rotating groove (1), and the other end of the spring (41) is connected to the bottom wall of the connecting shaft (37), wherein the bottom end of the connecting shaft (37) is limitedly mounted in the rotating groove (1).

7. The sealing ring injection molding equipment according to claim 1, characterized in that: The bottom end of the transmission shaft (29) is rotatably mounted on the bottom end of the barrel (17), and a mounting plate (31) is provided in the middle of the transmission shaft (29). A plurality of limit pins (32) are provided in an annular equidistant array at the bottom end of the mounting plate (31), and the limit pins (32) are meshed with the pin gear plate (30) for transmission.

8. The sealing ring injection molding equipment according to claim 1, characterized in that: A movable groove (431) is provided inside the connecting seat (43), and a rubber damping column (441) is installed in the movable groove (431) for limited sliding. The outer wall of the rubber damping column (441) is in sliding friction contact with the inner wall of the movable groove (431), and the bottom wall of the rubber damping column (441) is connected to the inside of the movable groove (431) through a second spring (45). A telescopic rod (44) is connected to the middle of the rubber damping column (441), and the telescopic rod (44) is limited and slidable on the outside of the connecting seat (43).

9. The sealing ring injection molding equipment according to claim 2, characterized in that: A main seat (8) is installed on one side of the I-shaped base (81), and a feed port (82) is provided at one end of the main seat (8). One end of the feed port (82) is connected to the material pipe (15), and the other end is communicated with an injection port (471) provided outside the fixed mold (47).

10. The sealing ring injection molding equipment according to claim 1, characterized in that: Guide blocks (24) are provided on both sides away from the cutting blade (26), a plurality of cutting grooves (25) are provided in the middle of the guide block (24) to fit the cutting blade (26), and one side of the guide block (24) is provided with an inclined surface to form a top closing structure.

Images