Continuous injection molding device and injection molding process

Abstract

The present invention belongs to the technical field of injection molding devices, and specifically relates to a continuous injection molding device and an injection molding process, comprising: a workbench and two first mold seats slidably connected to the top of the workbench, a connecting rod is fixedly connected to the inner side of the first mold seat, one end of the connecting rod is fixedly connected to the second mold seat, a lower mold is installed on the inner side of the second mold seat, an upper mold is slidably connected to the outer wall of the connecting rod, a hydraulic cylinder is installed on one side of the first mold seat, and the output end of the hydraulic cylinder passes through the inner side of the first mold seat and is fixedly connected to the upper mold; a guide hole, the guide hole is opened on the inner side of the second mold seat and communicates with the feed port of the lower mold. The present invention can realize the switching of two groups of molds by setting structures such as threaded screws, thereby reducing the time for cooling inside the mold and waiting for unloading, thereby improving the efficiency of injection molding.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding devices, in particular to a continuous injection molding device and an injection molding process. Background Art

[0002] Injection molding equipment, also known as injection molding machine, is a device used to manufacture plastic products. It melts the plastic raw materials by heating and pressurizing, then injects the molten plastic into the mold, and forms the plastic product of the desired shape after cooling and solidification. Injection molding equipment is widely used in various industrial fields, such as automobiles, electronics, medical, packaging and consumer goods.

[0003] The existing injection molding equipment injects molten liquid through the injection molding machine after the upper mold and the lower mold are closed. After the injection molding is completed, the upper mold and the lower mold need to be cooled before they can be separated, and then the raw materials can be ejected and unloaded. In this process, the machine needs to be stopped, which wastes a lot of time, resulting in reduced injection molding efficiency and further reducing the overall practicality of the device. For this reason, we provide a continuous injection molding device and injection molding process to solve the above problems. Summary of the invention

[0004] The technical problem solved by the present invention is that the existing injection molding device needs to be shut down for a long time after the injection molding is completed, which leads to a decrease in the efficiency of the injection molding. A continuous injection molding device and an injection molding process are provided.

[0005] In order to solve the above technical problems, the present invention provides a continuous injection molding device, comprising: a workbench and two first mold seats slidably connected to the top of the workbench, the inner side of the first mold seat is fixedly connected to a connecting rod, one end of the connecting rod is fixedly connected to a second mold seat, the inner side of the second mold seat is equipped with a lower mold, the outer wall of the connecting rod is slidably connected to an upper mold, a hydraulic cylinder is installed on one side of the first mold seat, and the output end of the hydraulic cylinder penetrates to the inner side of the first mold seat and is fixedly connected to the upper mold;

[0006] A guide hole, which is provided on the inner side of the second mold base and communicates with the feed port of the lower mold;

[0007] An injection molding machine, the injection molding machine is installed on the top of the workbench, a feed barrel is installed at the discharge port of the injection molding machine, an auxiliary docking device for docking is arranged between one end of the feed barrel and the second mold seat, the auxiliary docking device comprises a holding ring fixedly connected to the discharge port of the feed barrel, a spherical block is embedded in the inner side of the holding ring, and an auxiliary calibration piece for assisting the spherical block in position calibration is arranged on the outer wall of the spherical block;

[0008] The position adjustment mechanism is located on the top of the workbench and is used for switching the position between the two first mold seats.

[0009] Preferably, the auxiliary docking device also includes a connecting sleeve fixedly connected to the discharge port of the spherical block, a sliding sleeve is fixedly connected to the inner side of the connecting sleeve, a sealing ring is fixedly connected to the outer wall of the sliding sleeve, a connecting plate is fixedly connected to the outer wall of the spherical block, an electric push rod is installed on the inner side of the connecting plate, the output end of the electric push rod is connected to the sealing ring, an auxiliary sleeve is fixedly connected to the port of the sliding sleeve, an arched groove communicating with the guide hole is provided on the inner side of the second mold seat, a docking interface matching the arched groove is provided on the inner side of the auxiliary sleeve, a first plugging component for closing the arched groove port is provided on the inner side of the guide hole, and a second plugging component for sealing the auxiliary sleeve docking interface is provided on the inner side of the auxiliary sleeve.

[0010] Preferably, the first sealing assembly includes a fixing ring fixedly connected to the inside of the guide hole, a first piston block is slidably connected to the inner side of the fixing ring, one end of the first piston block is fixedly connected to an auxiliary spring, and one end of the auxiliary spring is fixedly connected to the fixing ring, and an outer wall of the second mold seat is provided with a jet flushing unit extending to the inside of the first piston block.

[0011] Preferably, the jet flushing unit includes an air guide hole opened on the inner side of the first piston block, a groove is opened on the inner side of the second mold base, a high-pressure air pump is installed on one side of the second mold base, the output end of the high-pressure air pump is connected to a connecting pipe, one end of the connecting pipe extends to the interior of the groove and is fixedly connected to a hose, and one end of the hose is installed inside the air guide hole.

[0012] Preferably, the second blocking assembly includes a retention sleeve fixedly connected to the inside of the auxiliary sleeve, a second piston block is provided at one end of the retention sleeve, and the second piston block is slidably connected to the inside of the auxiliary sleeve, a second spur rack is fixedly connected to one side of the second piston block, and one end of the second spur rack penetrates into the inside of the retention sleeve and is slidably connected to the retention sleeve, a rotating shaft is rotatably connected to the inner side of the retention sleeve, a spur gear meshing with the second spur rack is fixedly connected to the outer wall of the rotating shaft, a first spur rack is slidably connected to the other end of the retention sleeve, and one end of the first spur rack penetrates into the inside of the retention sleeve and is meshed with the spur gear, a connecting block is fixedly connected to one side of the first spur rack, a connecting spring is fixedly connected to the inner side of the connecting block, and one end of the connecting spring is fixedly connected to the retention sleeve.

[0013] Preferably, the auxiliary calibration part includes a conical groove opened on the outer wall of the second mold seat, and the conical groove is communicated with the guide hole, one end of the second piston block is set as a conical surface, and the outer wall of the spherical block is fixedly connected with a plurality of arc springs, and one end of each of the arc springs is fixedly connected to the feed barrel.

[0014] Preferably, the positioning mechanism includes two fixed seats fixedly connected to the top of the workbench, the inner sides of the two fixed seats are rotatably connected with a one-way threaded screw, a driving motor is installed on one side of one of the fixed seats, and the output end of the driving motor is connected to the one-way threaded screw, the outer wall of the one-way threaded screw is threadedly connected with a sliding block, and the two first mold seats are fixedly connected by a connecting rod.

[0015] Preferably, the bottom of the sliding block is fixedly connected to a limiting block, the top of the workbench is provided with a limiting sliding groove matching the limiting block, and the sliding block is slidably connected to the workbench via the limiting block fixedly connected to the bottom.

[0016] The present invention also discloses a continuous injection molding process, which uses the above-mentioned continuous injection molding device and comprises the following steps:

[0017] S1. First, after a group of the upper mold and the lower mold are molded together, the raw material is injected into the upper mold and the lower mold through the injection molding machine, and then the driving motor can be started. The output end of the driving motor drives the one-way threaded screw to rotate, thereby driving the slider to drive one of the first mold seats to move horizontally, thereby driving another first mold seat to move synchronously through the connecting rod, so that the new upper mold and the lower mold are moved to one side of the feed barrel, so that the upper mold and the lower mold that need to be cooled are moved to the next place. After the removed upper mold and the lower mold are cooled and discharged, the upper mold and the lower mold located at the injection position are injected, and then the driving motor is started again, and the output end of the driving motor rotates in the opposite direction, thereby driving the two first mold seats to reset through the one-way threaded screw. In this reciprocating manner, the two groups of molds can be switched, thereby reducing the cooling time inside the mold and the waiting time for unloading, thereby improving the efficiency of injection molding;

[0018] S2. When the mold needs to be switched, the electric push rod is started, and the output end of the electric push rod drives the sealing ring to drive the auxiliary sleeve to reset, so that the pressure on the auxiliary spring is gradually reduced, so that the first piston block is reset and blocks the feed port of the arched groove, thereby blocking it, so as to prevent the external air from entering the upper mold and the lower mold during the cooling process of the molded products, thereby ensuring the stability of the molded products after injection;

[0019] S3, when the auxiliary sleeve moves toward the outside of the second mold base, when the second piston block is separated from the first piston block, the auxiliary sleeve is still inside the guide hole, and the auxiliary sleeve moves at this time, so that the first piston block no longer squeezes the first spur rack, and then the connecting spring pushes the first spur rack to reset, thereby driving the second spur rack to reset the second piston block through the rotating shaft, so that the discharge port of the auxiliary sleeve is blocked by the reset of the second piston block, so as to prevent the outside air from entering the inside of the feed barrel along the auxiliary sleeve and affecting the re-injection process of the molten raw material inside, thereby improving the overall stability of the device;

[0020] S4, when the upper mold and the lower mold are switched to the position of the feed barrel, the output end of the electric push rod drives the sliding sleeve to dock with the second mold seat again, and when the auxiliary sleeve and the guide hole are slightly misaligned, the conical surface of the outer wall of the auxiliary sleeve contacts the conical groove, and the spherical block can be driven to rotate under the action of the conical groove, so that the position of the auxiliary sleeve can be adjusted, so that the auxiliary sleeve and the guide hole can always dock when there is a slight offset between the auxiliary sleeve and the guide hole, thereby improving the overall practicality of the device;

[0021] S5. After the first piston block is reset and blocks the feed port of the arched groove, the air guide hole is aligned with the arched groove. After the upper mold and the lower mold are cooled and unloaded, the high-pressure air pump can be started. The high-pressure air pump sprays high-pressure gas to flush the arched groove and rush the lower mold out through the air guide hole, thereby unblocking the feed port, thereby avoiding blockage, thereby improving the overall practicality of the device;

[0022] S6. When the equipment performs injection molding, the raw material in the feed barrel is introduced into the interior of the arched groove through the discharge port of the auxiliary sleeve, and flows into the interior of the lower mold through the guide hole for injection molding.

[0023] Compared with the related art, the present invention has the following beneficial effects:

[0024] The present invention arranges structures such as threaded screws. First, after a group of upper molds and lower molds are molded together and raw materials are injected into the upper molds and lower molds through an injection molding machine, a driving motor can be started. The output end of the driving motor drives the one-way threaded screw to rotate, thereby driving the slider to drive a first mold base to move laterally, thereby driving another first mold base to move synchronously through a connecting rod, thereby moving the new upper mold and lower mold to one side of the feed barrel, so that the upper mold and lower mold that need to be cooled are moved to the next place. After the removed upper mold and lower mold are cooled and discharged, the upper mold and lower mold located at the injection position are injected, and the driving motor is started again. The output end of the driving motor rotates in the opposite direction, thereby driving the two first mold bases to reset through the one-way threaded screw. In this reciprocating manner, the two groups of molds can be switched, thereby reducing the time for cooling the inside of the mold and waiting for unloading, thereby improving the efficiency of injection molding.

[0025] The present invention arranges the first piston block and other structures. When the mold needs to be switched, the electric push rod is started. The output end of the electric push rod drives the sealing ring to drive the auxiliary sleeve to reset, so that the pressure on the auxiliary spring is gradually reduced, so that the first piston block is blocked at the feed inlet of the arched groove after being reset, thereby sealing it, thereby preventing the external air from entering the upper and lower molds during the cooling process of the products molded inside the molds, thereby ensuring the stability of the molded products after injection.

[0026] The present invention arranges the second piston block and other structures. When the auxiliary sleeve moves toward the outside of the second mold base and the second piston block is separated from the first piston block, the auxiliary sleeve is still in the guide hole. At this time, the auxiliary sleeve moves, so that the first piston block no longer squeezes the first spur rack, and then the connecting spring pushes the first spur rack to reset, thereby driving the second spur rack to reset the second piston block through the rotating shaft, so that the discharge port of the auxiliary sleeve is blocked by the reset of the second piston block, thereby preventing outside air from entering the feed barrel along the auxiliary sleeve and affecting the injection molding process of the molten raw material inside, thereby improving the overall stability of the device.

[0027] The present invention arranges structures such as conical grooves. When the upper mold and the lower mold are switched to the position of the feed barrel, the output end of the electric push rod drives the sliding sleeve to dock with the second mold seat again. When the auxiliary sleeve and the guide hole are slightly misaligned, the conical surface of the outer wall of the auxiliary sleeve contacts the conical groove. Under the action of the conical groove, the spherical block can be driven to rotate, thereby adjusting the position of the auxiliary sleeve, so that the auxiliary sleeve can always dock with the guide hole when the auxiliary sleeve is slightly offset, thereby improving the overall practicality of the device.

[0028] 5. The present invention arranges structures such as air guide holes. When the first piston block is reset and blocks the feed port of the arched groove, the air guide holes are aligned with the arched groove. After the upper and lower molds are cooled and unloaded, the high-pressure air pump can be started. The high-pressure air pump sprays high-pressure gas to flush the arched groove and rush out of the lower mold through the guide holes, thereby unblocking the feed port to avoid blockage, thereby improving the overall practicality of the device.

[0029] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a structural schematic diagram of the present invention;

[0032] Figure 2 It is a side view of the workbench of the present invention;

[0033] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0034] Figure 4 is a cross-sectional view of a second mold base of the present invention;

[0035] Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle;

[0036] Figure 6 For the present invention Figure 5 Enlarged view of point C in the middle;

[0037] Figure 7 is a cross-sectional view of an auxiliary sleeve of the present invention;

[0038] Figure 8 It is a schematic diagram of the connection of the spherical blocks of the present invention;

[0039] Fig. 9 It is a schematic diagram of the tapered groove structure of the present invention.

[0040] Numbers in the figure:

[0041] 1. Workbench; 2. Connecting block; 3. First mold base; 4. Upper mold; 5. Second mold base; 6. Connecting rod; 7. Feed barrel; 8. Injection molding machine; 9. Lower mold; 10. Conical surface; 11. Hydraulic cylinder; 12. Fixed seat; 13. Driving motor; 14. One-way threaded screw; 15. Sliding block; 16. Connecting rod; 17. Holding ring; 18. Spherical block; 19. Arc spring; 20. Connecting plate; 21. Electric push rod; 22. Sealing ring; 23. Sliding Moving sleeve; 24, connecting sleeve; 25, high-pressure air pump; 26, guide hole; 27, auxiliary sleeve; 28, tapered groove; 29, connecting pipe; 30, arched groove; 31, fixing ring; 32, first piston block; 33, auxiliary spring; 34, air guide hole; 35, hose; 36, groove; 37, second piston block; 38, connecting spring; 39, first straight rack; 40, second straight rack; 41, spur gear; 42, rotating shaft; 43, retention sleeve. DETAILED DESCRIPTION

[0042] 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.

[0043] See also Figure 1-Figure 9 A continuous injection molding device comprises: a workbench 1 and two first mold seats 3 slidably connected to the top of the workbench 1, a connecting rod 6 is fixedly connected to the inner side of the first mold seat 3, one end of the connecting rod 6 is fixedly connected to the second mold seat 5, a lower mold 9 is installed on the inner side of the second mold seat 5, an upper mold 4 is slidably connected to the outer wall of the connecting rod 6, a hydraulic cylinder 11 is installed on one side of the first mold seat 3, and the output end of the hydraulic cylinder 11 passes through the inner side of the first mold seat 3 and is fixedly connected to the upper mold 4; a guide hole 26, the guide hole 26 is opened on the inner side of the second mold seat 5 and communicates with the feed port of the lower mold 9; an injection molding machine 8, the injection molding machine 8 is installed on the top of the workbench 1, and the injection molding machine 8 is installed on the top of the workbench 1. A feed barrel 7 is installed at the discharge port of the molding machine 8, and the positioning mechanism includes two fixed seats 12 fixedly connected to the top of the workbench 1, and the inner sides of the two fixed seats 12 are rotatably connected with a one-way threaded screw 14, a driving motor 13 is installed on one side of one of the fixed seats 12, and the output end of the driving motor 13 is connected to the one-way threaded screw 14, and the outer wall of the one-way threaded screw 14 is threadedly connected with a slider 15, and the two first mold seats 3 are fixedly connected by a connecting rod 16, and the bottom of the slider 15 is fixedly connected to a limit block, and a limit slide groove matching the limit block is provided on the top of the workbench 1, and the slider 15 is slidably connected to the workbench 1 through the limit block fixedly connected at the bottom;

[0044] First, after a group of upper molds 4 and lower molds 9 are closed, and the raw materials are injected into the upper molds 4 and lower molds 9 through the injection molding machine 8, the drive motor 13 can be started, and the output end of the drive motor 13 drives the one-way threaded screw 14 to rotate, thereby driving the slider 15 to drive a first mold base 3 to move horizontally, thereby driving another first mold base 3 to move synchronously through the connecting rod 16, so that the new upper mold 4 and lower mold 9 are moved to one side of the feed barrel 7, so that the upper mold 4 and lower mold 9 that need to be cooled are moved to the next place. After the removed upper mold 4 and lower mold 9 are cooled internally and discharged, the upper mold 4 and lower mold 9 located at the injection position are injected, and the drive motor 13 is started again, and the output end of the drive motor 13 rotates in the opposite direction, thereby driving the two first mold bases 3 to reset through the one-way threaded screw 14. In this reciprocating manner, the two groups of molds can be switched, thereby reducing the cooling time inside the mold and the waiting time for unloading, thereby improving the efficiency of injection molding.

[0045] See also Figure 2-Figure 7 An auxiliary docking device for docking is provided between one end of the feed barrel 7 and the second mold seat 5, and the auxiliary docking device includes a holding ring 17 fixedly connected to the discharge port of the feed barrel 7, and a spherical block 18 is embedded in the inner side of the holding ring 17. The auxiliary docking device also includes a connecting sleeve 24 fixedly connected to the discharge port of the spherical block 18, and a sliding sleeve 23 is fixedly connected to the inner side of the connecting sleeve 24. A sealing ring 22 is fixedly connected to the outer wall of the sliding sleeve 23, and a connecting plate 20 is fixedly connected to the outer wall of the spherical block 18. An electric push rod 21 is installed on the inner side of the connecting plate 20, and the output end of the electric push rod 21 is connected to the sealing ring 22. An auxiliary sleeve 27 is fixedly connected to the port of the sliding sleeve 23. The inner side of the second mold seat 5 is opened There is an arched groove 30 communicating with the guide hole 26, and a docking interface matching the arched groove 30 is opened on the inner side of the auxiliary sleeve 27. A first plugging component for closing the port of the arched groove 30 is arranged on the inner side of the guide hole 26, and a second plugging component for plugging the docking interface of the auxiliary sleeve 27 is arranged on the inner side of the auxiliary sleeve 27. The first plugging component includes a fixed ring 31 fixedly connected to the inside of the guide hole 26, and a first piston block 32 is slidably connected to the inner side of the fixed ring 31. One end of the first piston block 32 is fixedly connected to an auxiliary spring 33, and one end of the auxiliary spring 33 is fixedly connected to the fixed ring 31. The outer wall of the second mold base 5 is provided with an air jet flushing unit extending to the inside of the first piston block 32;

[0046] When the mold needs to be switched, the electric push rod 21 is started, and the output end of the electric push rod 21 drives the sealing ring 22 to drive the auxiliary sleeve 27 to reset, so that the pressure on the auxiliary spring 33 is gradually reduced, so that the first piston block 32 is reset and blocks the feed port of the arched groove 30, thereby blocking it, thereby preventing the outside air from entering the upper mold 4 and the lower mold 9 during the cooling process of the molded products, thereby ensuring the stability of the injection molded products after injection.

[0047] See also Figure 5-Figure 9 The second plugging assembly includes a retention sleeve 43 fixedly connected to the inside of the auxiliary sleeve 27, a second piston block 37 is provided at one end of the retention sleeve 43, and the second piston block 37 is slidably connected to the inside of the auxiliary sleeve 27, a second spur rack 40 is fixedly connected to one side of the second piston block 37, and one end of the second spur rack 40 penetrates into the interior of the retention sleeve 43 and is slidably connected to the retention sleeve 43, a rotating shaft 42 is rotatably connected to the inner side of the retention sleeve 43, a spur gear 41 meshing with the second spur rack 40 is fixedly connected to the outer wall of the rotating shaft 42, a first spur rack 39 is slidably connected to the other end of the retention sleeve 43, and one end of the first spur rack 39 penetrates into the interior of the retention sleeve 43 and meshes with the spur gear 41, a connecting block 2 is fixedly connected to one side of the first spur rack 39, a connecting spring 38 is fixedly connected to the inner side of the connecting block 2, and one end of the connecting spring 38 is fixedly connected to the retention sleeve 43;

[0048] When the auxiliary sleeve 27 moves toward the outside of the second mold base 5 and the second piston block 37 separates from the first piston block 32, the auxiliary sleeve 27 is still inside the guide hole 26. At this time, the auxiliary sleeve 27 moves, so that the first piston block 32 no longer squeezes the first straight rack 39, and then the connecting spring 38 pushes the first straight rack 39 to reset, thereby driving the second straight rack 40 through the rotating shaft 42 to drive the second piston block 37 to reset, so that the discharge port of the auxiliary sleeve 27 is blocked by the reset of the second piston block 37, thereby preventing outside air from entering the feed barrel 7 along the auxiliary sleeve 27, affecting the injection molding process of the molten raw material inside, thereby improving the overall stability of the device.

[0049] See also Figure 5-Figure 9 The jet flushing unit includes an air guide hole 34 provided on the inner side of the first piston block 32, a groove 36 provided on the inner side of the second mold base 5, a high-pressure air pump 25 is installed on one side of the second mold base 5, and a connecting pipe 29 is connected to the output end of the high-pressure air pump 25, one end of the connecting pipe 29 extends to the inside of the groove 36 and is fixedly connected to a hose 35, and one end of the hose 35 is installed inside the air guide hole 34;

[0050] When the first piston block 32 is reset and blocks the feed port of the arched groove 30, the air guide hole 34 is aligned with the arched groove 30. After the upper mold 4 and the lower mold 9 are cooled internally and unloaded, the high-pressure air pump 25 can be started. The high-pressure air pump 25 sprays high-pressure gas to flush the arched groove 30 and rush out the lower mold 9 through the guide hole 26, thereby clearing its feed port to avoid blockage, thereby improving the overall practicality of the device.

[0051] See also Figure 8-Figure 9 The auxiliary calibration part includes a tapered groove 28 opened on the outer wall of the second mold base 5, and the tapered groove 28 is connected to the guide hole 26, one end of the second piston block 37 is set as a cone surface 10, and the outer wall of the spherical block 18 is fixedly connected to a plurality of arc springs 19, and one end of each arc spring 19 is fixedly connected to the feed barrel 7;

[0052] When the upper mold 4 and the lower mold 9 are switched to the position of the feed barrel 7, the output end of the electric push rod 21 drives the sliding sleeve 23 to dock with the second mold seat 5 again. When the auxiliary sleeve 27 and the guide hole 26 are slightly misaligned, the conical surface 10 of the outer wall of the auxiliary sleeve 27 contacts the conical groove 28, and the spherical block 18 can be moved to rotate under the action of the conical groove 28, so that the position of the auxiliary sleeve 27 can be adjusted, so that the auxiliary sleeve 27 can always dock with the guide hole 26 when there is a slight deviation between the auxiliary sleeve 27 and the guide hole 26, thereby improving the overall practicality of the device;

[0053] When a large offset occurs between the auxiliary sleeve 27 and the second mold base 5, the equipment needs to be repaired;

[0054] When the spherical block 18 is rotating, it is always connected to the feed barrel 7 through the arc spring 19, so that after the auxiliary sleeve 27 is moved out from the inside of the guide hole 26, the holding ring 17 can be reset under the action of the arc spring 19. A high-temperature resistant seal can be provided between the spherical block 18 and the holding ring 17, and the spherical block 18 and the holding ring 17 can also be riveted, so that the raw material inside the feed barrel 7 cannot flow out when the spherical block 18 rotates.

[0055] In combination with the above-mentioned continuous injection molding device, a continuous injection molding process is provided below, which specifically includes the following steps:

[0056] S1. First, after a group of upper molds 4 and lower molds 9 are molded together, and the raw materials are injected into the upper molds 4 and lower molds 9 through the injection molding machine 8, the driving motor 13 can be started, and the output end of the driving motor 13 drives the one-way threaded screw 14 to rotate, thereby driving the slider 15 to drive a first mold base 3 to move horizontally, thereby driving another first mold base 3 to move synchronously through the connecting rod 16, so that the new upper mold 4 and lower mold 9 are moved to one side of the feed barrel 7, so that the upper mold 4 and lower mold 9 that need to be cooled are moved to the next place. After the removed upper mold 4 and lower mold 9 are cooled and discharged, the upper mold 4 and lower mold 9 located at the injection position are injected, and the driving motor 13 is started again, and the output end of the driving motor 13 rotates in the opposite direction, thereby driving the two first mold bases 3 to reset through the one-way threaded screw 14. In this reciprocating manner, the two groups of molds can be switched, thereby reducing the cooling time inside the mold and the waiting time for unloading, thereby improving the efficiency of injection molding;

[0057] S2. When the mold needs to be switched, the electric push rod 21 is started, and the output end of the electric push rod 21 drives the sealing ring 22 to drive the auxiliary sleeve 27 to reset, so that the pressure on the auxiliary spring 33 is gradually reduced, so that the first piston block 32 is reset and blocks the feed port of the arched groove 30, thereby blocking it, so as to prevent the external air from entering the upper mold 4 and the lower mold 9 during the cooling process of the molded products, thereby ensuring the stability of the injection molded products after injection;

[0058] S3, when the auxiliary sleeve 27 moves to the outside of the second mold base 5, the second piston block 37 is separated from the first piston block 32, and the auxiliary sleeve 27 is still inside the guide hole 26. At this time, the auxiliary sleeve 27 moves, so that the first piston block 32 no longer squeezes the first straight rack 39, and then the connecting spring 38 pushes the first straight rack 39 to reset, thereby driving the second straight rack 40 to reset the second piston block 37 through the rotating shaft 42, so that the discharge port of the auxiliary sleeve 27 is blocked by the reset of the second piston block 37, so as to prevent the outside air from entering the inside of the feed barrel 7 along the auxiliary sleeve 27 and affecting the injection molding process of the molten raw material inside, thereby improving the overall stability of the device;

[0059] S4, when the upper mold 4 and the lower mold 9 are switched to the position of the feed barrel 7, the output end of the electric push rod 21 drives the sliding sleeve 23 to dock with the second mold seat 5 again, and when the auxiliary sleeve 27 and the guide hole 26 are slightly misaligned, the conical surface 10 of the outer wall of the auxiliary sleeve 27 contacts the conical groove 28, and the spherical block 18 can be moved to rotate under the action of the conical groove 28, so that the position of the auxiliary sleeve 27 can be adjusted, so that the auxiliary sleeve 27 and the guide hole 26 can always dock when there is a slight offset, thereby improving the overall practicality of the device;

[0060] S5. After the first piston block 32 is reset and blocks the feed port of the arched groove 30, the air guide hole 34 is aligned with the arched groove 30. After the upper mold 4 and the lower mold 9 are cooled and unloaded, the high-pressure air pump 25 can be started. The high-pressure air pump 25 sprays high-pressure gas to flush the arched groove 30 and rush out the lower mold 9 through the guide hole 26, thereby clearing the feed port thereof, thereby avoiding blockage, thereby improving the overall practicality of the device;

[0061] S6. When the equipment performs injection molding, the raw material in the feed barrel 7 is introduced into the arched groove 30 through the discharge port of the auxiliary sleeve 27, and flows into the lower mold 9 through the guide hole 26 for injection molding.

[0062] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A continuous injection molding device, characterized in that: include: A workbench (1) and two first mold seats (3) slidably connected to the top of the workbench (1); a connecting rod (6) is fixedly connected to the inner side of the first mold seat (3); one end of the connecting rod (6) is fixedly connected to the second mold seat (5); a lower mold (9) is installed on the inner side of the second mold seat (5); an upper mold (4) is slidably connected to the outer wall of the connecting rod (6); a hydraulic cylinder (11) is installed on one side of the first mold seat (3); an output end of the hydraulic cylinder (11) passes through the inner side of the first mold seat (3) and is fixedly connected to the upper mold (4); a guide hole (26), the guide hole (26) being formed on the inner side of the second mold base (5) and communicating with the feed port of the lower mold (9); An injection molding machine (8), the injection molding machine (8) being mounted on the top of the workbench (1), a feed barrel (7) being mounted at the discharge port of the injection molding machine (8), an auxiliary docking device for docking being arranged between one end of the feed barrel (7) and the second mold base (5), the auxiliary docking device comprising a holding ring (17) fixedly connected to the discharge port of the feed barrel (7), a spherical block (18) being embedded in the inner side of the holding ring (17), and an auxiliary calibration piece for assisting the spherical block (18) in position calibration being arranged on the outer wall of the spherical block (18); A positioning mechanism is located on the top of the workbench (1) and is used to switch the position between the two first mold seats (3).

2. A continuous injection molding device according to claim 1, characterized in that: The auxiliary docking device further comprises a connecting sleeve (24) fixedly connected to the discharge port of the spherical block (18); a sliding sleeve (23) is fixedly connected to the inner side of the connecting sleeve (24); a sealing ring (22) is fixedly connected to the outer wall of the sliding sleeve (23); a connecting plate (20) is fixedly connected to the outer wall of the spherical block (18); an electric push rod (21) is installed on the inner side of the connecting plate (20); an output end of the electric push rod (21) is connected to the sealing ring (22); and the sliding sleeve (23) is fixedly connected to the outer wall of the spherical block (18). An auxiliary sleeve (27) is fixedly connected to the port of the second mold base (3), an arched groove (30) communicating with the guide hole (26) is provided on the inner side of the second mold base (5), a docking interface matching the arched groove (30) is provided on the inner side of the auxiliary sleeve (27), a first plugging component for closing the port of the arched groove (30) is provided on the inner side of the guide hole (26), and a second plugging component for plugging the docking interface of the auxiliary sleeve (27) is provided on the inner side of the auxiliary sleeve (27).

3. A continuous injection molding device according to claim 2, characterized in that: The first plugging assembly comprises a fixing ring (31) fixedly connected to the inside of the guide hole (26); a first piston block (32) is slidably connected to the inner side of the fixing ring (31); an auxiliary spring (33) is fixedly connected to one end of the first piston block (32); and one end of the auxiliary spring (33) is fixedly connected to the fixing ring (31); and an air jet flushing unit extending to the inside of the first piston block (32) is provided on the outer wall of the second mold base (5).

4. A continuous injection molding device according to claim 3, characterized in that: The jet flushing unit comprises an air guide hole (34) provided on the inner side of the first piston block (32); a groove (36) is provided on the inner side of the second mold base (5); a high-pressure air pump (25) is installed on one side of the second mold base (5); an output end of the high-pressure air pump (25) is connected to a connecting pipe (29); one end of the connecting pipe (29) extends to the inside of the groove (36) and is fixedly connected to a hose (35); and one end of the hose (35) is installed inside the air guide hole (34).

5. A continuous injection molding device according to claim 4, characterized in that: The second plugging assembly comprises a retention sleeve (43) fixedly connected to the interior of the auxiliary sleeve (27); a second piston block (37) is provided at one end of the retention sleeve (43), and the second piston block (37) is slidably connected to the interior of the auxiliary sleeve (27); a second spur rack (40) is fixedly connected to one side of the second piston block (37), and one end of the second spur rack (40) penetrates into the interior of the retention sleeve (43) and is slidably connected to the retention sleeve (43); a rotating shaft (42) is rotatably connected to the inner side of the retention sleeve (43); The outer wall of the rotating shaft (42) is fixedly connected with a spur gear (41) meshing with the second spur gear (40); the other end of the retention sleeve (43) is slidably connected with the first spur gear (39), and one end of the first spur gear (39) penetrates into the interior of the retention sleeve (43) and meshes with the spur gear (41); one side of the first spur gear (39) is fixedly connected with a connecting block (2), the inner side of the connecting block (2) is fixedly connected with a connecting spring (38), and one end of the connecting spring (38) is fixedly connected to the retention sleeve (43).

6. A continuous injection molding device according to claim 5, characterized in that: The auxiliary calibration part comprises a conical groove (28) formed on the outer wall of the second mold base (5), and the conical groove (28) is communicated with the guide hole (26); one end of the second piston block (37) is arranged as a conical surface (10); the outer wall of the spherical block (18) is fixedly connected with a plurality of arc springs (19), and one end of each of the arc springs (19) is fixedly connected to the feed barrel (7).

7. A continuous injection molding device according to claim 6, characterized in that: The positioning mechanism comprises two fixed seats (12) fixedly connected to the top of the workbench (1), the inner sides of the two fixed seats (12) are rotatably connected with a one-way threaded screw (14), a driving motor (13) is installed on one side of one of the fixed seats (12), and the output end of the driving motor (13) is connected to the one-way threaded screw (14), the outer wall of the one-way threaded screw (14) is threadedly connected with a slider (15), and the two first mold seats (3) are fixedly connected via a connecting rod (16).

8. A continuous injection molding device according to claim 7, characterized in that: The bottom of the sliding block (15) is fixedly connected to a limit block, the top of the workbench (1) is provided with a limit slot matching the limit block, and the sliding block (15) is slidably connected to the workbench (1) via the limit block fixedly connected to the bottom.

9. A continuous injection molding process, characterized in that: The continuous injection molding device according to claim 8 comprises the following steps: S1. First, after a set of the upper mold (4) and the lower mold (9) are molded together, the raw material is injected into the upper mold (4) and the lower mold (9) by the injection molding machine (8), and then the drive motor (13) can be started. The output end of the drive motor (13) drives the one-way threaded screw (14) to rotate, thereby driving the slider (15) to drive one of the first mold bases (3) to move horizontally, thereby driving another first mold base (3) to move synchronously through the connecting rod (16), so as to move the new upper mold (4) and the lower mold (9) to the position located at the feed barrel (7). The upper mold (4) and the lower mold (9) that need to be cooled are moved to the next position. After the upper mold (4) and the lower mold (9) that have been moved are cooled and discharged, the upper mold (4) and the lower mold (9) located at the injection position are injected. The drive motor (13) is started again, and the output end of the drive motor (13) rotates in the opposite direction, thereby driving the two first mold seats (3) to reset through the one-way threaded screw (14). In this reciprocating manner, the two sets of molds can be switched, thereby reducing the time for cooling the inside of the mold and waiting for unloading, thereby improving the efficiency of injection molding. S2. When the mold needs to be switched, the electric push rod (21) is started, and the output end of the electric push rod (21) drives the sealing ring (22) to drive the auxiliary sleeve (27) to reset, so that the pressure on the auxiliary spring (33) is gradually reduced, so that the first piston block (32) is reset and blocks the feed port of the arched groove (30), thereby blocking it, thereby preventing the external air from entering the upper mold (4) and the lower mold (9) during the cooling process of the molded product, thereby ensuring the stability of the molded product after injection molding; S3. When the auxiliary sleeve (27) moves toward the outside of the second mold base (5), the second piston block (37) separates from the first piston block (32), and the auxiliary sleeve (27) is still inside the guide hole (26). At this time, the auxiliary sleeve (27) moves, so that the first piston block (32) no longer presses the first spur rack (39), so that the connecting spring (38) pushes the first spur rack (39) to reset, thereby driving the second spur rack (40) to reset the second piston block (37) through the rotating shaft (42), so that the discharge port of the auxiliary sleeve (27) is blocked by the reset of the second piston block (37), thereby preventing outside air from entering the inside of the feed barrel (7) along the auxiliary sleeve (27) and affecting the re-injection process of the molten raw material inside, thereby improving the overall stability of the device; S4, when the upper mold (4) and the lower mold (9) are switched to the position of the feed barrel (7), the output end of the electric push rod (21) drives the sliding sleeve (23) to dock with the second mold base (5) again, and when the auxiliary sleeve (27) and the guide hole (26) are slightly misaligned, the conical surface (10) of the outer wall of the auxiliary sleeve (27) contacts the conical groove (28), and the spherical block (18) can be driven to rotate under the action of the conical groove (28), so that the position of the auxiliary sleeve (27) can be adjusted, so that when the auxiliary sleeve (27) and the guide hole (26) are slightly offset, the two can always dock, thereby improving the overall practicality of the device; S5. After the first piston block (32) is reset and blocks the feed port of the arched groove (30), the air guide hole (34) is aligned with the arched groove (30). After the upper mold (4) and the lower mold (9) are cooled and unloaded, the high-pressure air pump (25) can be started. The high-pressure air pump (25) sprays high-pressure gas to flush the arched groove (30) and pass through the air guide hole (26) to flush the lower mold (9), thereby clearing the feed port, thereby avoiding blockage, thereby improving the overall practicality of the device; S6. When the equipment performs injection molding, the raw material in the feed barrel (7) is introduced into the interior of the arched groove (30) through the discharge port of the auxiliary sleeve (27), and flows into the interior of the lower mold (9) through the guide hole (26) for injection molding.

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