A general injection mold with quick change insert

Abstract

The application discloses a general injection mold capable of quickly replacing inserts, which comprises a mold body, a mounting plate arranged in a mounting groove, an insert cavity for forming a workpiece arranged in the mounting plate, a special-shaped groove fixedly arranged in the mounting groove, a rotating shaft rotatably arranged in the special-shaped groove, a first rotating wheel arranged on the rotating shaft, adjacent first rotating wheels connected through a belt transmission, a receiving cylinder corresponding to the rotating shaft fixedly arranged at the top of the special-shaped groove, a threaded rod rotatably arranged in the receiving cylinder, a connecting cylinder corresponding to the receiving cylinder fixedly connected to the bottom of the mounting plate, a threaded sleeve arranged in the connecting cylinder, and the threaded sleeve being in threaded connection with the outer surface of the threaded rod corresponding to the threaded sleeve; the general injection mold capable of quickly replacing inserts can quickly replace the insert cavity by means of the mounting plate and the receiving cylinder, meets the production switching demand of various products, has a simple operation process, can quickly replace the insert cavity, and is high in efficiency and adaptability to the injection production of different products.

Description

Technical Field

[0001] This invention relates to the field of mold technology, specifically to a universal injection mold with quick-change inserts. Background Technology

[0002] Injection molds are indispensable core precision tooling in plastic injection molding production. They mainly work with injection molding machines to complete the standardized, mass production of various plastic parts. The molten plastic heated by the injection molding machine is injected into the pre-set cavity structure inside the mold under high pressure and high speed. The precise cavity contour of the mold constrains the shape of the plastic. Then, the mold cooling system allows the molten plastic to cool down and solidify rapidly. Finally, the ejection mechanism smoothly pushes out the molded plastic product, thus completing the automated cycle production. Molds can be customized with complex cavity structures according to product design requirements to adapt to the diverse and complex production needs of plastic products. They are the core foundation for the large-scale, precise, and automated production of modern plastic products, directly determining the product molding quality, production yield, and production cycle.

[0003] A Chinese patent with publication number CN108327185A discloses an injection mold, including an upper injection mold and a lower injection mold. The upper injection mold has positioning through holes at both ends and slots on its side surface, in which electromagnets are fixed. A mold base plate and an injection hole are provided on the surface of the upper injection mold, with the injection hole communicating with the mold base plate. The lower injection mold has positioning guide posts at both ends and slots on its side surface, in which electromagnets are fixed. A mold base plate and an injection hole are also provided on the surface of the lower injection mold, with the injection hole communicating with the mold base plate. This design achieves high-efficiency production and solves the technical problems of incomplete demolding and low mold utilization.

[0004] The existing conventional injection molds have shortcomings in their universal design to adapt to the production of multiple products. If it is necessary to switch to produce or process different styles of injection molded products, it is necessary to disassemble and replace the molding inserts inside the mold. However, the existing molds are not equipped with quick-release and quick-installation structures. The operation process of positioning, locking and disassembling inserts is complicated, and the replacement operation is time-consuming and labor-intensive. It is difficult to achieve quick replacement of inserts, and the operation convenience of product switching is insufficient, which brings great inconvenience to the on-site production changeover operation.

[0005] Therefore, the present invention provides a universal injection mold for quick-change inserts. Summary of the Invention

[0006] The purpose of this invention is to provide a universal injection mold for quick-change inserts, so as to solve the problems mentioned in the background art.

[0007] A universal injection mold for quick-change inserts includes a mold body, an installation groove within the mold body, an installation plate within the installation groove, an insert cavity within the installation plate for forming the workpiece, an injection hole within the mold body that communicates with the interior of the insert cavity, a shaped groove fixedly disposed within the installation groove, a rotating shaft rotatably disposed within the shaped groove, a first rotating wheel disposed on the rotating shaft, and adjacent first rotating wheels connected by a belt drive, a receiving cylinder corresponding to the rotating shaft fixedly disposed at the top of the shaped groove, a threaded rod rotatably disposed within the receiving cylinder, one end of the threaded rod being fixedly connected to the end of the rotating shaft, a connecting cylinder corresponding to the receiving cylinder fixedly connected at the bottom of the installation plate, a threaded sleeve disposed within the connecting cylinder, and the threaded sleeve being threadedly connected to the outer surface of the corresponding driving threaded rod, a power mechanism for driving the rotating shaft movement within the shaped groove, and a vibration mechanism for assisting in the venting of the molten plastic within the shaped groove.

[0008] By adopting the above scheme, when using a universal injection mold with quick-change inserts to prepare workpieces, the mold body and the drive equipment are connected. The drive equipment can drive the mold body to open and close. The injection hole is connected to the output end of the injection molding machine. After the mold body closes, the injection molding machine can inject the plastic melt into the insert cavity. After cooling, the workpiece is formed. Then, the drive equipment moves to separate the mold body. Through the movement of the ejector assembly, the formed workpiece can be unloaded. The threaded rod and threaded sleeve are threaded together, which can then position the mounting plate and fix the insert cavity in the mold body. When preparing different workpieces and needing to change the insert cavity, the power mechanism is connected to the belt drive of the first rotating pulley. Controlling the movement of the power mechanism can drive the rotating shaft to rotate. When the rotating shaft rotates, it drives the threaded rod to rotate. The rotation of the threaded rod adjusts the position of the threaded sleeve, which in turn adjusts the position of the connecting cylinder. After the threaded rod and the threaded sleeve separate, the mounting plate can be disassembled, and then the insert cavity can be disassembled. The mounting plate is prefabricated, and multiple sets of insert cavities of different shapes can be pre-set on different mounting plates. After the mounting plate to be installed is placed in the mounting groove, the connecting cylinder is inserted into the storage cylinder, and then the threaded sleeve is connected to one end of the threaded rod. Controlling the movement of the power mechanism can drive the threaded rod to rotate. When the threaded rod rotates, it can enter the storage cylinder through the engagement of the threaded sleeve, thereby positioning the mounting plate. The insert cavity can be replaced by driving, which facilitates quick replacement of the insert cavity and the preparation of different products.

[0009] Preferably, the mold body is provided with an array of cooling pipes for coolant flow, the mold body is provided with symmetrically arranged hydraulic pipes, the mold body is provided with an ejector assembly, and the hydraulic pipes are connected to the ejector assembly, and the mounting plate and insert cavity are provided with through slots corresponding to the ejector assembly.

[0010] By adopting the above scheme, the cooling pipe is connected to the equipment for supplying coolant. After injection molding is completed, the equipment can supply coolant to the cooling pipe. When the coolant flows in the cooling pipe, it will absorb heat, which can help the workpiece cool down and form. The hydraulic pipe is connected to the hydraulic drive equipment. Hydraulic oil is supplied through the hydraulic pipe and the hydraulic drive equipment to drive the ejector component to move. After the workpiece is formed, the workpiece can be demolded.

[0011] Preferably, the power mechanism includes a dual-output shaft motor, a drive shaft, and a drive wheel. The dual-output shaft motor is fixed inside the irregular groove. The drive shaft is rotatably disposed inside the irregular groove, and one end of the drive shaft is fixedly connected to the output end of the dual-output shaft motor. The drive wheel is disposed on the drive shaft, and the inner ring of the drive wheel is made of a magnetic material.

[0012] By adopting the above scheme, controlling the dual-output shaft motor will drive the drive shaft to rotate. The electromagnet will generate a strong magnet to position the drive wheel, thus fixing the drive shaft and the drive wheel in place. When the drive shaft rotates, it will drive the drive wheel to rotate. It is possible to choose whether to fix the drive shaft and the drive wheel in place as needed. The drive wheel is connected to the first rotating wheel via a belt. When the drive wheel rotates, it can drive the first rotating wheel to rotate.

[0013] Preferably, the drive shaft is provided with an annular groove, the drive wheel is fixedly provided with a guide ring corresponding to the annular groove, and the guide ring is engaged with the annular groove, and the drive shaft is fixedly provided with an electromagnet.

[0014] By adopting the above scheme, the electromagnet generates a strong magnet when it works. After being fixedly connected to the drive wheel, the drive shaft rotates, causing the drive wheel to rotate. The electromagnet stops working and no longer generates a strong magnet, so the drive wheel will not rotate when the drive shaft rotates.

[0015] Preferably, the vibration mechanism includes a vibration box, a drive assembly, an opening, a limiting frame, a drive spring, a striking block, a driven shaft, and a stop. The vibration box is fixed in a shaped groove, the opening is disposed on the vibration box, the limiting frame is fixed inside the vibration box, the drive spring array is disposed inside the limiting frame, the striking block is disposed inside the limiting frame, and one end of the drive spring is fixedly connected to the side of the striking block. The driven shaft is fixedly connected to the striking block, and a stop is fixedly disposed inside the limiting frame, with the stop located on one side of the striking block. The drive assembly for driving the driven shaft is disposed inside the vibration box.

[0016] By adopting the above scheme, the driven shaft can be driven to move repeatedly through the cooperation of the drive wheel and drive assembly. When the driven shaft moves, it will push the striking block to move. The driving spring can push the striking block to reset. After the striking block contacts and collides with the stop block, it will generate vibration. This repeated movement can make the vibration box vibrate, and then transmit the vibration to the mounting plate. This can help to exhaust the plastic melt in the insert cavity, and further ensure the quality of the workpiece.

[0017] Preferably, the drive assembly includes a drive shaft, a driven wheel, and a drive block. The drive shaft is rotatably disposed inside the vibration box. The driven wheel is fixed on the drive shaft and is connected to the corresponding drive wheel via a belt drive. The drive block is fixed on the drive shaft and is located on one side of the driven shaft. One end of the driven shaft is arc-shaped.

[0018] By adopting the above scheme, the drive wheel and the driven wheel are connected by belt drive. When the drive wheel rotates, it will drive the driven wheel to move. The movement of the driven wheel will drive the drive shaft to move, which will cause the drive block to rotate in a circle. When the drive block rotates, it will contact one end of the driven shaft and push the driven shaft to move.

[0019] Preferably, the connecting cylinder is provided with a tapered groove, and the tapered groove is located on one side of the threaded sleeve.

[0020] By adopting the above scheme, the tapered groove facilitates the threaded rod to enter the connecting cylinder, so that the threaded rod and the threaded sleeve are threadedly connected.

[0021] Preferably, the storage tube is embedded with an explosion-proof battery, and the explosion-proof battery is located on one side of the threaded rod.

[0022] By adopting the above solution, the storage tube provides installation space for explosion-proof batteries.

[0023] Preferably, the storage tube is embedded with a storage groove, a sliding block is inserted into the storage groove, a conductive block is provided on the sliding block, conductive sheets are symmetrically arranged in the storage groove, and the explosion-proof battery is electrically connected to one of the conductive sheets. A guide rod is inserted into the sliding block, and one end of the guide rod is fixedly connected to the inner wall of the storage groove. A return spring is arranged around the guide rod.

[0024] By adopting the above scheme, after the connecting cylinder enters the storage cylinder, the connecting cylinder applies pressure to the top of the sliding block, causing the sliding block to move downward. The guide rod guides the sliding block, allowing it to move smoothly. After the sliding block moves to the predetermined position, it causes the conductive block to move between the conductive sheets. Then, the current inside the explosion-proof battery flows through the conductive sheets and the conductive block, causing the current to flow to the monitoring light, which then activates. By observing the monitoring light, it can be determined whether the replacement insert cavity is installed in place, thus achieving the purpose of detecting the position of the replacement insert cavity and effectively avoiding the impact of abnormal insert cavity position on subsequent injection molding results.

[0025] Preferably, the mold body is provided with a monitoring light corresponding to the storage tube, and the monitoring light is electrically connected to another set of conductive sheets.

[0026] By adopting the above scheme, the current can be easily introduced into the monitoring lamp through the conductive sheet and conductive block, so that the monitoring lamp works. By observing the monitoring lamp, it can be determined whether the installation position of the replaced insert cavity is in place, thus achieving the purpose of detecting the position of the replaced insert cavity.

[0027] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention provides a universal injection mold for quick insert replacement. By using an installation plate and a storage cylinder, it enables rapid replacement of insert cavities, meeting the production switching needs of multiple product categories. When replacing the insert cavity, the power mechanism drives the first rotating wheel, rotating shaft, and threaded rod to rotate via belt drive. The position of the threaded sleeve and connecting cylinder is adjusted by the threaded rod. After the threaded rod and threaded sleeve separate, the installation plate can be removed, and the insert cavity on it can be taken off. The installation plates are uniformly prefabricated to standard dimensions, and each plate can be pre-installed with various insert cavities. During replacement, the new installation plate is placed in the installation slot, and the connecting cylinder is inserted into the storage cylinder and engages with the threaded sleeve at the end of the threaded rod. The power mechanism reverses the threaded rod, using the threaded engagement to pull the connecting cylinder into the storage cylinder, locking and positioning the installation plate. The entire mechanism has a simple operation process, enabling rapid replacement of insert cavities and efficiently adapting to the injection molding production of different products.

[0028] 2. The universal injection mold for quick insert replacement described in this invention utilizes a vibration frame to achieve vibration-assisted venting. During operation, the driven shaft reciprocates linearly, pushing and striking blocks to move synchronously. The striking blocks automatically reset under the elastic force of the drive spring. The reciprocating impact of the striking blocks against the stop blocks continuously generates excitation force, causing the entire vibration box to vibrate and transmitting the vibration to the mounting plate supporting the insert cavity. This vibration disturbs the molten plastic inside the insert cavity, accelerating gas expulsion, effectively reducing internal air bubble defects in the plastic part, and stabilizing the quality of the molded workpiece. Operators can independently choose to start and stop the vibration mechanism according to the actual injection molding conditions to specifically eliminate air bubbles trapped in the melt.

[0029] 3. The universal injection mold for quick insert replacement described in this invention, during the process of replacing the insert cavity and pushing the connecting cylinder into the receiving cylinder, the connecting cylinder presses down against the top of the sliding block, driving the sliding block to move downwards. The guide rod plays a limiting and guiding role for the sliding block, ensuring the smooth linear displacement of the sliding block. When the sliding block descends to the preset assembly position, the conductive block on it is precisely embedded between the two sets of conductive sheets, and the internal circuit of the explosion-proof battery is connected. The current is conducted to the monitoring light through the conductive sheets and conductive block, causing the monitoring light to light up. The operator can intuitively determine whether the insert cavity is assembled in place by observing the working status of the monitoring light, realizing automatic detection of the insert cavity installation position, and effectively avoiding the problem of poor injection molding caused by insert cavity misalignment or inadequate fixation. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the universal injection mold for quick-change inserts according to the present invention. Figure 2 This is a schematic diagram of the injection hole and mold body structure of the present invention; Figure 3 This is a schematic diagram of the mounting groove and mounting plate structure of the present invention; Figure 4 This is a three-dimensional structural diagram of the mounting plate and storage tube of the present invention; Figure 5 This is a schematic diagram of the structure of the storage cylinder and the threaded rod of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the irregular groove of the present invention; Figure 7 This is a three-dimensional structural diagram of the mounting plate and connecting cylinder of the present invention; Figure 8 This is a three-dimensional structural diagram of the dual-output shaft motor and drive shaft of the present invention; Figure 9 This is a schematic diagram of the structure of the vibration box of the present invention; Figure 10 This is a schematic diagram of the structure of the storage groove and sliding block of the present invention.

[0031] In the diagram: 1. Mold body; 2. Cooling pipe; 3. Hydraulic pipe; 4. Ejection assembly; 5. Injection hole; 6. Mounting slot; 7. Mounting plate; 8. Insert cavity; 9. Through slot; 11. Irregular groove; 12. Rotating shaft; 13. No. 1 rotating wheel; 14. Dual output shaft motor; 15. Drive shaft; 16. Storage cylinder; 17. Threaded rod; 18. Connecting cylinder; 19. Conical groove; 20. Threaded sleeve; 21. Explosion-proof battery; 22. 1. Storage slot; 23. Sliding block; 24. Conductive block; 25. Conductive sheet; 26. Return spring; 27. Monitoring light; 28. Guide rod; 29. ​​Drive wheel; 30. Annular groove; 31. Guide ring; 32. Electromagnet; 33. Vibration box; 34. Opening; 35. Drive shaft; 36. Driven wheel; 37. Drive block; 38. Limiting frame; 39. Drive spring; 40. Striking block; 41. Driven shaft; 43. Stop block. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figure 1-10 This invention provides a technical solution: a universal injection mold for quick-change inserts, comprising a mold body 1, an installation groove 6 within the mold body 1, an installation plate 7 within the installation groove 6, an insert cavity 8 for forming the workpiece within the installation plate 7, an injection hole 5 within the mold body 1, the injection hole 5 communicating with the interior of the insert cavity 8, a shaped groove 11 fixedly disposed within the installation groove 6, a rotating shaft 12 rotatably disposed within the shaped groove 11, a first rotating wheel 13 disposed on the rotating shaft 12, and adjacent first rotating wheels 13 connected by a belt drive. The top of the irregular groove 11 is fixedly provided with a storage cylinder 16 corresponding to the rotating shaft 12. A threaded rod 17 is rotatably provided inside the storage cylinder 16, and one end of the threaded rod 17 is fixedly connected to the end of the rotating shaft 12. The bottom of the mounting plate 7 is fixedly connected with a connecting cylinder 18 corresponding to the storage cylinder 16. A threaded sleeve 20 is provided inside the connecting cylinder 18, and the threaded sleeve 20 is threadedly connected to the outer surface of the corresponding driving threaded rod 17. The irregular groove 11 is provided with a power mechanism for driving the rotating shaft 12 to move, and the irregular groove 11 is provided with a vibration mechanism to assist in the exhaust of plastic melt. When preparing a workpiece by injection molding using a universal injection mold with quick-change inserts, the mold body 1 is connected to the drive device. The drive device can drive the mold body 1 to open and close. The injection hole 5 is connected to the output end of the injection molding machine. After the mold body 1 is closed, the injection molding machine can inject the plastic melt into the insert cavity 8. After cooling, the workpiece is formed. Then the drive device moves to separate the mold body 1. The ejector assembly 4 can be used to unload the formed workpiece. The threaded rod 17 is threadedly connected to the threaded sleeve 20, thereby positioning the mounting plate 7 and fixing the insert cavity 8 inside the mold body 1. When preparing different workpieces, if the insert cavity 8 needs to be replaced, the power mechanism is connected to the first rotating wheel 13 via a belt drive. Controlling the movement of the power mechanism can drive the rotating shaft 12 to rotate. When the rotating shaft 12 rotates, it will drive the threaded rod 17 to rotate. When the threaded rod 17 rotates, it will adjust the position of the threaded sleeve 20, and thus adjust the position of the connecting cylinder 18. After the threaded rod 17 is separated from the threaded sleeve 20, the mounting plate 7 can be disassembled, and then the insert cavity 8 can be disassembled. The mounting plate 7 is prefabricated. Multiple sets of insert cavities 8 of different shapes can be pre-set on different mounting plates 7. After the mounting plate 7 to be installed is placed inside the mounting groove 6, the connecting cylinder 18 is inserted into the storage cylinder 16. Then, the threaded sleeve 20 is connected to one end of the threaded rod 17. The movement of the power mechanism can drive the threaded rod 17 to rotate. When the threaded rod 17 rotates, it can enter the storage cylinder 16 through the engagement of the threaded sleeve 20. This can position the mounting plate 7. The insert cavity 8 can be replaced by driving, which is convenient for quick replacement of the insert cavity 8 and preparation of different products. When the injection molding machine delivers molten plastic into the insert cavity 8, the power mechanism can drive the vibration mechanism to move. The movement of the vibration mechanism can assist the mold body 1 to vibrate. The exhaust device can further help accelerate the upward movement and discharge of air bubbles, thereby alleviating trapped air bubbles and air streaks. The vibration mechanism can be driven to remove air bubbles according to actual needs.

[0034] Furthermore, the mold body 1 is provided with an array of cooling pipes 2 for coolant flow, the mold body 1 is provided with symmetrically arranged hydraulic pipes 3, the mold body 1 is provided with an ejector assembly 4, and the hydraulic pipes 3 are connected to the ejector assembly 4. The mounting plate 7 and the insert cavity 8 are provided with through grooves 9 corresponding to the ejector assembly 4. Cooling pipe 2 is connected to an external cooling fluid supply device. After injection molding, the device can supply cooling fluid to cooling pipe 2. When the cooling fluid flows in cooling pipe 2, it will absorb heat, which can help the workpiece cool down and form. Hydraulic pipe 3 is connected to an external hydraulic drive device. Hydraulic oil is supplied through hydraulic pipe 3 and hydraulic drive device to drive the ejector assembly 4 to move. After the workpiece is formed, the workpiece can be demolded (existing technology).

[0035] Furthermore, the power mechanism includes a dual-output shaft motor 14, a drive shaft 15, and a drive wheel 29. The dual-output shaft motor 14 is fixed inside the irregular groove 11, the drive shaft 15 is rotatably disposed inside the irregular groove 11, and one end of the drive shaft 15 is fixedly connected to the output end of the dual-output shaft motor 14. The drive wheel 29 is disposed on the drive shaft 15, and the inner ring of the drive wheel 29 is made of magnetic material. Controlling the dual-output shaft motor 14 will drive the drive shaft 15 to rotate. The electromagnet 32 ​​will generate a strong magnet to position the drive wheel 29, thus fixing the drive shaft 15 and the drive wheel 29 in place. When the drive shaft 15 rotates, it will drive the drive wheel 29 to rotate. It is optional to fix the drive shaft 15 and the drive wheel 29 in place as needed. The drive wheel 29 is connected to the first rotating wheel 13 via a belt. When the drive wheel 29 rotates, it can drive the first rotating wheel 13 to rotate.

[0036] Furthermore, an annular groove 30 is provided on the drive shaft 15, and a guide ring 31 corresponding to the annular groove 30 is fixedly provided inside the drive wheel 29, and the guide ring 31 is engaged with the annular groove 30. An electromagnet 32 ​​is fixedly provided inside the drive shaft 15. The operation of electromagnet 32 ​​can be controlled as needed. When electromagnet 32 ​​operates, it generates a strong magnet. After being fixedly connected to drive wheel 29, drive shaft 15 rotates, which causes drive wheel 29 to rotate. Electromagnet 32 ​​stops working and no longer generates a strong magnet. Therefore, when drive shaft 15 rotates, drive wheel 29 will not rotate.

[0037] Furthermore, the vibration mechanism includes a vibration box 33, a drive assembly, an opening 34, a limiting frame 38, a drive spring 39, a striking block 40, a driven shaft 41, and a stop block 43. The vibration box 33 is fixed in the irregular groove 11, the opening 34 is provided on the vibration box 33, the limiting frame 38 is fixed inside the vibration box 33, the drive spring 39 is arranged in an array inside the limiting frame 38, the striking block 40 is provided inside the limiting frame 38, and one end of the drive spring 39 is fixedly connected to the side of the striking block 40. The driven shaft 41 is fixedly connected to the striking block 40. A stop block 43 is fixedly provided inside the limiting frame 38, and the stop block 43 is located on one side of the striking block 40. The drive assembly for driving the driven shaft 41 is provided inside the vibration box 33. The driven shaft 41 can be driven to move repeatedly by the drive wheel 29 and the drive assembly. When the driven shaft 41 moves, it will push the striking block 40 to move. The striking block 40 can be pushed to reset by the drive spring 39. The striking block 40 will vibrate after it comes into contact with the stop block 43. This repeated movement can make the vibration box 33 vibrate, and then transmit the vibration to the mounting plate 7. This can help to exhaust the plastic melt in the insert cavity 8, and further ensure the quality of the workpiece.

[0038] Furthermore, the drive assembly includes a drive shaft 35, a driven wheel 36, and a drive block 37. The drive shaft 35 is rotatably mounted inside the vibration box 33. The driven wheel 36 is fixed on the drive shaft 35 and is connected to the corresponding drive wheel 29 via a belt drive. The drive block 37 is fixed on the drive shaft 35 and is located on one side of the driven shaft 41. One end of the driven shaft 41 is arc-shaped. The drive wheel 29 and the driven wheel 36 are connected by a belt drive. When the drive wheel 29 rotates, it will drive the driven wheel 36 to move. The movement of the driven wheel 36 will drive the drive shaft 35 to move, which will cause the drive block 37 to rotate. When the drive block 37 rotates, it will contact one end of the driven shaft 41 and push the driven shaft 41 to move.

[0039] Furthermore, the connecting cylinder 18 is provided with a tapered groove 19, and the tapered groove 19 is located on one side of the threaded sleeve 20; The tapered groove 19 facilitates the entry of the threaded rod 17 into the connecting sleeve 18, so that the threaded rod 17 is threadedly connected to the threaded sleeve 20.

[0040] Furthermore, an explosion-proof battery 21 is embedded inside the storage tube 16, and the explosion-proof battery 21 is located on one side of the threaded rod 17. The storage tube provides installation space for 16-position explosion-proof batteries.

[0041] Furthermore, the storage cylinder 16 is embedded with a storage groove 22, a sliding block 23 is inserted into the storage groove 22, a conductive block 24 is provided on the sliding block 23, conductive sheets 25 are symmetrically arranged in the storage groove 22, and the explosion-proof battery 21 is electrically connected to one of the conductive sheets 25. A guide rod 28 is inserted into the sliding block 23, and one end of the guide rod 28 is fixedly connected to the inner wall of the storage groove 22. A reset spring 26 is arranged around the guide rod 28. A monitoring light 27 corresponding to the storage cylinder 16 is provided on the mold body 1, and the monitoring light 27 is electrically connected to another set of conductive sheets 25.

[0042] When replacing the insert-type cavity 8, after the connecting cylinder 18 enters the receiving cylinder 16, the connecting cylinder 18 applies pressure to the top of the sliding block 23, causing the sliding block 23 to move downward. The guide rod 28 guides the sliding block 23, allowing it to move smoothly. After the sliding block 23 moves to the predetermined position, the conductive block 24 moves between the conductive sheets 25. Then, the current inside the explosion-proof battery 21 flows through the conductive sheets 25 and the conductive block 24, causing the current to flow to the monitoring light 27, which then activates the monitoring light 27. By observing the monitoring light 27, it can be determined whether the replaced insert-type cavity 8 is installed in the correct position, thus achieving the purpose of detecting the position of the replaced insert-type cavity 8 and effectively avoiding the impact of abnormal position of the insert-type cavity 8 on the subsequent injection molding effect.

[0043] Working principle: First, when preparing the workpiece using a universal injection mold with quick-change inserts, the mold body 1 is connected to the drive device. The drive device can drive the mold body 1 to open and close. The injection hole 5 is connected to the output end of the injection molding machine. After the mold body 1 closes, the injection molding machine can inject the plastic melt into the insert cavity 8. The cooling pipe 2 is connected to an external coolant supply device. After injection molding, the device can supply coolant to the cooling pipe 2. When the coolant flows in the cooling pipe 2, it will absorb heat, which can help cool the workpiece and help it form. Then, the drive device moves to separate the mold body 1. Through the movement of the ejector assembly 4, the formed workpiece can be unloaded. The hydraulic pipe 3 is connected to an external hydraulic drive device. The hydraulic drive equipment delivers hydraulic oil to drive the ejector assembly 4. After the workpiece is formed, it can be demolded. The threaded rod 17 is threadedly connected to the threaded sleeve 20, which can then position the mounting plate 7, fixing the insert cavity 8 inside the mold body 1. When preparing different workpieces, if the insert cavity 8 needs to be replaced, controlling the dual-output shaft motor 14 will drive the drive shaft 15 to rotate. When the drive shaft 15 rotates, it will drive the drive wheel 29 to rotate. It is possible to choose whether to fix the drive shaft 15 and the drive wheel 29 according to the requirements. The drive wheel 29 is connected to the first rotating wheel 13 through a belt. When the drive wheel 29 rotates, it can drive the first rotating wheel 13 to rotate, which can drive the rotating shaft 12 to rotate. The rotating shaft 12 rotates, which drives the threaded rod 17 to rotate. When the threaded rod 17 rotates, it adjusts the position of the threaded sleeve 20, which in turn adjusts the position of the connecting cylinder 18. After the threaded rod 17 separates from the threaded sleeve 20, the mounting plate 7 can be disassembled, and then the insert cavity 8 can be disassembled. The mounting plate 7 is prefabricated, and multiple sets of insert cavities 8 of different shapes can be pre-set on different mounting plates 7. After the mounting plate 7 to be installed is placed inside the mounting groove 6, the connecting cylinder 18 is inserted into the receiving cylinder 16, and then the threaded sleeve 20 is connected to one end of the threaded rod 17. Controlling the movement of the power mechanism can drive the threaded rod 17 to rotate. When the threaded rod 17 rotates, it cooperates with the threaded sleeve 20 to allow the connecting cylinder 18 to enter the receiving cylinder 16, thereby positioning the mounting plate 7. By driving, the insert cavity can be disassembled. The insert cavity 8 can be easily replaced for quick and easy replacement of different workpieces. When the injection molding machine feeds molten plastic into the insert cavity 8, the drive wheel 29 can be moved by the power mechanism. When the drive wheel 29 rotates, it drives the driven wheel 36 to move. The driven wheel 36 then drives the drive shaft 35 to move, which in turn causes the drive block 37 to rotate circumferentially. When the drive block 37 rotates, it contacts one end of the driven shaft 41, which pushes the driven shaft 41 to move. This drives the driven shaft 41 to move repeatedly. When the driven shaft 41 moves, it pushes the striking block 40 to move. The driving spring 39 can push the striking block 40 to reset. After the striking block 40 contacts and collides with the stop block 43, it will vibrate. This repeated movement can make the vibration box 33 vibrate, and then transmit the vibration to the mounting plate 7.It can assist in venting the plastic melt inside the insert cavity 8, further ensuring the quality of the workpiece. The vibration mechanism can be driven to remove air bubbles, depending on actual needs. When replacing the insert cavity 8, after the connecting cylinder 18 enters the receiving cylinder 16, the connecting cylinder 18 applies pressure to the top of the sliding block 23, causing the sliding block 23 to move downwards. The guide rod 28 guides the sliding block 23, allowing it to move smoothly. After the sliding block 23 moves to the predetermined position, the conductive block 24 moves between the conductive sheets 25. The current inside the explosion-proof battery 21 then flows through the conductive sheets 25 and the conductive block 24, causing the current to flow to the monitoring light 27, activating the monitoring light 27. By observing the monitoring light 27, it can be determined whether the replaced insert cavity 8 is installed correctly, achieving the purpose of position detection for the replaced insert cavity 8 and effectively preventing abnormal positioning of the insert cavity 8 from affecting subsequent injection molding results.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A universal injection mold for quick-change inserts, characterized in that: The mold body (1) includes a mounting groove (6) and a mounting plate (7) in the mounting groove (6). The mounting plate (7) has an insert cavity (8) for forming the workpiece. The mold body (1) has an injection hole (5) and the injection hole (5) is connected to the interior of the insert cavity (8). A shaped groove (11) is fixedly provided in the mounting groove (6). A rotating shaft (12) is rotatably provided in the shaped groove (11). A first rotating wheel (13) is provided on the rotating shaft (12), and an adjacent first rotating wheel (13) is connected by a belt drive. A storage cylinder (16) corresponding to the rotating shaft (12) is fixedly provided at the top of the shaped groove (11). A threaded rod (17) is rotatably provided in the storage cylinder (16), and one end of the threaded rod (17) is fixedly connected to the end of the rotating shaft (12). A connecting cylinder (18) corresponding to the storage cylinder (16) is fixedly connected at the bottom of the mounting plate (7). A threaded sleeve (20) is provided in the connecting cylinder (18), and the threaded sleeve (20) is threadedly connected to the outer surface of the corresponding driving threaded rod (17). The irregular groove (11) is provided with a power mechanism for driving the rotating shaft (12) to move, and the irregular groove (11) is provided with a vibration mechanism to assist in the exhaust of plastic melt.

2. The universal injection mold for quick-change inserts according to claim 1, characterized in that: The mold body (1) is provided with an array of cooling pipes (2) for coolant flow, and hydraulic pipes (3) are symmetrically arranged inside the mold body (1). An ejector assembly (4) is provided inside the mold body (1), and the hydraulic pipes (3) are connected to the ejector assembly (4). The mounting plate (7) and the insert cavity (8) are provided with through grooves (9) corresponding to the ejector assembly (4).

3. A universal injection mold for quick-change inserts according to claim 2, characterized in that: The power mechanism includes a dual-output shaft motor (14), a drive shaft (15), and a drive wheel (29). The dual-output shaft motor (14) is fixed inside the irregular groove (11). The drive shaft (15) is rotatably disposed inside the irregular groove (11), and one end of the drive shaft (15) is fixedly connected to the output end of the dual-output shaft motor (14). The drive wheel (29) is disposed on the drive shaft (15), and the inner ring of the drive wheel (29) is made of magnetic material.

4. A universal injection mold for quick-change inserts according to claim 3, characterized in that: An annular groove (30) is provided on the drive shaft (15), and a guide ring (31) corresponding to the annular groove (30) is fixedly provided in the drive wheel (29), and the guide ring (31) is engaged with the annular groove (30). An electromagnet (32) is fixedly provided in the drive shaft (15).

5. A universal injection mold for quick-change inserts according to claim 1, characterized in that: The vibration mechanism includes a vibration box (33), a drive assembly, an opening (34), a limiting frame (38), a drive spring (39), a striking block (40), a driven shaft (41), and a stop block (43). The vibration box (33) is fixed in the irregular groove (11). The opening (34) is set on the vibration box (33). The limiting frame (38) is fixed inside the vibration box (33). The drive springs (39) are arranged in an array inside the limiting frame (38). The striking block (40) is set inside the limiting frame (38), and one end of the drive spring (39) is fixedly connected to the side of the striking block (40). The driven shaft (41) is fixedly connected to the striking block (40). A stop block (43) is fixedly set inside the limiting frame (38), and the stop block (43) is located on one side of the striking block (40). The drive assembly for driving the driven shaft (41) is set inside the vibration box (33).

6. A universal injection mold for quick-change inserts according to claim 5, characterized in that: The drive assembly includes a drive shaft (35), a driven wheel (36), and a drive block (37). The drive shaft (35) is rotatably mounted inside the vibration box (33). The driven wheel (36) is fixed on the drive shaft (35), and the driven wheel (36) is connected to the corresponding drive wheel (29) via belt drive. The drive block (37) is fixed on the drive shaft (35), and the drive block (37) is located on one side of the driven shaft (41). One end of the driven shaft (41) is arc-shaped.

7. A universal injection mold for quick-change inserts according to claim 6, characterized in that: The connecting cylinder (18) is provided with a tapered groove (19), and the tapered groove (19) is located on one side of the threaded sleeve (20).

8. A universal injection mold for quick-change inserts according to claim 1, characterized in that: The storage tube (16) is inlaid with an explosion-proof battery (21), and the explosion-proof battery (21) is located on one side of the threaded rod (17).

9. A universal injection mold for quick-change inserts according to claim 8, characterized in that: The storage tube (16) is inlaid with a storage groove (22), a sliding block (23) is inserted into the storage groove (22), a conductive block (24) is provided on the sliding block (23), conductive sheets (25) are symmetrically arranged in the storage groove (22), and the explosion-proof battery (21) is electrically connected to one of the conductive sheets (25). A guide rod (28) is inserted into the sliding block (23), and one end of the guide rod (28) is fixedly connected to the inner wall of the storage groove (22). A reset spring (26) is arranged around the guide rod (28).

10. A universal injection mold for quick-change inserts according to claim 9, characterized in that: The mold body (1) is provided with a monitoring lamp (27) corresponding to the storage tube (16), and the monitoring lamp (27) is electrically connected to another set of conductive sheets (25).

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