A molding mold for fireproof footwear injection molding machine and a method of using the same

Abstract

The present invention relates to the field of mold technology, and discloses a fireproof shoe injection molding machine molding mold and a method of using the same, including a support table, a swivel is rotatably installed on the upper surface of the support table, a discharge hopper is fixedly installed on the outer surface of one side of the support table, two groups of vertical plates are evenly fixedly installed in pairs on the upper surface of the swivel in the circumferential direction, and a top plate is fixedly installed between the two groups of vertical plates. When the guide column of the present invention moves to the mold opening section, the guide column will push the hinge center of the upper mold and the lower mold outward through the C-shaped frame, so that the bidirectional screws installed on the upper mold and the lower mold move in opposite directions along the guide groove, so that the mold cavities of the upper mold and the lower mold are expanded outward, which is convenient for demolding and unloading of the molded soles. The demolded soles fall onto the discharge hopper, and then slide into an external collection box through the discharge hopper for collection. There is no need to manually remove the molded soles from the mold cavity, and the material removal is more convenient and quick.

Description

Technical Field

[0001] The invention relates to the technical field of molds, and in particular to a molding mold of a fireproof shoe injection molding machine and a use method thereof. Background Art

[0002] Fireproof shoes are shoes specially designed to protect the wearer in high temperature or fire environment. Usually, the soles of fireproof shoes are made by shoe mold injection. Shoe mold is the sole injection mold used in the shoe industry to produce the required footwear products through injection molding, blow molding and other methods. In the injection molding process, in addition to the product design, mold development, mold assembly and other processes before production, due to the fluctuation of process conditions, it is sometimes difficult to demold the product.

[0003] The existing rubber shoe injection mold (Announcement No.: CN218505101U) has at least the following disadvantages: During the injection molding process, the sole needs to be manually removed from the mold after injection molding. Due to the limited distance between the two molds after opening, it is inconvenient for the operator to directly remove the molded sole from the mold cavity, which makes it difficult to remove the sole. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a molding die for a fireproof shoe injection molding machine and a method of using the same.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A forming mold of a fireproof shoe injection molding machine comprises a support table, a swivel is rotatably mounted on the upper surface of the support table, a discharge hopper is fixedly mounted on the outer surface of one side of the support table, two groups of vertical plates are evenly fixedly mounted in a circumferential direction on the upper surface of the swivel, a top plate is fixedly mounted between the two groups of vertical plates, an upper mold and a lower mold are respectively mounted between two of the vertical plates in a group, one side edge of the upper mold and the lower mold are hinged to each other, a C-shaped frame is rotatably mounted at the hinge center of the upper mold and the lower mold, a guide rail is fixedly mounted laterally on the outer surface of the vertical plate, the side edge of the C-shaped frame is slidably mounted on the guide rail, and a supporting mechanism is installed between the upper mold, the lower mold and the vertical plate.

[0007] As a further solution of the present invention, the supporting mechanism includes a bidirectional screw rod which is rotatably installed on the sides of the upper mold and the lower mold, and two guide grooves are symmetrically opened on the outer surface of the vertical plate. The ends of the bidirectional screw rod are inserted into the interior of the guide groove and slidably installed with the inner wall thereof, and a mold opening and closing mechanism is installed between the C-shaped frame and the supporting platform.

[0008] As a further solution of the present invention, the mold opening and closing mechanism includes a support column fixedly mounted on the upper surface of the support platform, a fixed disk fixedly mounted on the top of the support column, a closed-loop guide groove is opened on the upper surface of the fixed disk, and the closed-loop guide groove is composed of a closed section, an open mold section, an unfolding section and a closing mold section connected end to end, and a guide column matching the closed-loop guide groove is fixedly mounted on the lower surface of the middle section of the C-shaped frame, and the guide column is slidably mounted on the inner wall of the closed-loop guide groove.

[0009] As a further solution of the present invention, a ejection mechanism is installed inside the upper mold and the lower mold, and the ejection mechanism includes a mounting groove opened inside the upper mold and the lower mold, and the bidirectional screw rod is arranged through the mounting groove, and an ejection plate is installed on the inner wall of the mounting groove for sliding up and down. A plurality of ejection columns are fixedly installed on the outer surface of the ejection plate close to the mold cavity side, and the ejection columns can be ejected out of the mold cavity, and a telescopic component is installed between the bidirectional screw rod and the ejection plate.

[0010] As a further solution of the present invention, the telescopic assembly includes two movable frames symmetrically and laterally slidably installed on the inner wall of the installation groove, a rotating rod is rotatably installed between the movable frame and the ejection plate, both ends of the bidirectional screw rod respectively penetrate the outer surfaces of the two movable frames and are threadedly connected thereto, and a transmission assembly is installed between the bidirectional screw rod and the vertical plate.

[0011] As a further solution of the present invention, the transmission assembly includes transmission gears fixedly mounted on both ends of the bidirectional screw rod, and a rack matching the transmission gear is vertically fixedly mounted on the outer surface of the vertical plate close to the guide groove.

[0012] As a further solution of the present invention, a flow channel connected to the interior of the mold cavity is penetrated through the outer surface of the upper mold away from the hinged side, an injection molding machine body is fixedly installed on the upper surface of the top plate, a connecting pipe is fixedly installed between the discharge end of the injection molding machine body and the flow channel, and a cut-off mechanism is installed inside the upper mold near the flow channel.

[0013] As a further solution of the present invention, the cutting mechanism includes a cutter inserted through the top of the upper mold, the position of the cutter corresponds to the flow channel, a lower pressure frame is fixedly installed on the top of the cutter, a return spring rod is fixedly installed between the lower surface of the lower pressure frame and the upper surface of the upper mold, a fixed strut is fixedly installed on the upper surface of the support platform, a trapezoidal lower pressure block corresponding to the lower pressure frame is fixedly installed on the top of the fixed strut, and the trapezoidal lower pressure block is correspondingly arranged at the closed section.

[0014] As a further solution of the present invention, a driving gear is rotatably installed on the upper surface of the support table, and a number of tooth grooves meshing with the driving gear are evenly opened on the outer periphery of the rotating ring. A stepper motor is fixedly installed on the lower surface of the support table, and the output end of the stepper motor passes through the upper surface of the support table and is fixedly installed with the rotation center of the driving gear. A mounting plate is also fixedly installed on the upper surface of the support table, and a number of mutually connected air blowing nozzles are evenly fixedly installed on the outer surface of the mounting plate close to the rotating ring.

[0015] A method for using a molding mold of a fireproof shoe injection molding machine comprises the following steps:

[0016] S1: The driving gear is driven to rotate by the stepper motor, so that the driving gear drives the rotating ring meshed with the gear groove to rotate, so that the rotating ring can drive the upper mold and the lower mold to rotate synchronously through the vertical plate. When the guide column on the C-frame rotatably installed at the hinge center of the upper mold and the lower mold moves to the mold closing section of the closed-loop guide groove, the guide column will pull the hinge point of the upper mold and the lower mold inward through the C-frame, so that the end of the bidirectional screw installed on the upper mold and the lower mold slides along the guide groove. When the guide column moves to the closed section, the upper mold and the lower mold complete the mold closing, and the stepper motor stops running. At this time, the injection molding machine body is mutually connected with the flow channel of the upper mold in the mold closing state through the connecting pipe, so that the injection molding machine body injects the melted plastic into the mold cavity of the upper mold and the lower mold in the mold closing state, completing the injection molding operation of the fireproof shoe insole;

[0017] S2: After the insole is cooled, the stepper motor rotates again, so that the rotating ring drives the upper mold and the lower mold that have completed the injection molding to continue to rotate through the vertical plate. When the guide column on the C-frame continues to move in the closed section, the cut-off mechanism cuts off the plastic gate in the upper flow channel of the upper mold;

[0018] S3: When the guide column moves to the mold opening section, the guide column will push the hinge center of the upper mold and the lower mold outward through the C-shaped frame, so that the bidirectional screws installed on the upper mold and the lower mold move in opposite directions along the guide groove, so that the mold cavities of the upper mold and the lower mold are expanded outward, which is convenient for demolding and unloading of the molded sole. The demolded sole falls onto the discharge hopper, and then slides through the discharge hopper into the external collection box for collection;

[0019] S4: When the guide pillar moves to the expansion section, the guide pillar will keep the upper mold and the lower mold in an open state through the C-frame. When the upper mold and the lower mold pass through multiple air blowing nozzles installed on the mounting plate, the multiple air blowing nozzles will blow out strong airflows to purge the mold cavities of the upper mold and the lower mold, and clean the residual plastic adhering to the mold cavities of the upper mold and the lower mold.

[0020] The beneficial effects of the present invention are:

[0021] 1. After the completed insole is cooled, the stepper motor rotates again, so that the rotating ring drives the upper mold and the lower mold that have completed the injection molding operation to continue to rotate through the vertical plate. When the guide column on the C-shaped frame continues to move in the closed section, the side of the lower pressing frame installed on the upper mold will abut against the inclined edge of the trapezoidal lower pressing block, so that the trapezoidal lower pressing block can push the lower pressing frame downward, so that the lower pressing frame drives the cutter to move downward, so that the cutter cuts off the plastic gate in the upper runner of the upper mold, so that the subsequent injection molded insole can be separated from the mold cavity of the upper mold;

[0022] 2. When the guide column moves to the mold opening section, the guide column will push the hinge center of the upper mold and the lower mold outward through the C-shaped frame, so that the bidirectional screws installed on the upper mold and the lower mold move in opposite directions along the guide groove, so that the mold cavities of the upper mold and the lower mold are expanded outward, which is convenient for demolding and unloading of the molded soles. The demolded soles fall onto the discharge hopper, and then slide through the discharge hopper into the external collection box for collection. There is no need to manually remove the molded soles from the mold cavity, and the material removal is more convenient and quick;

[0023] 3. When the bidirectional lead screw moves, it will drive the transmission gear to move synchronously. When the transmission gear is meshed with the rack, the transmission gear will roll on the rack, so that the transmission gear drives the bidirectional lead screw to rotate, so that the two moving frames connected by the outer threads at both ends of the bidirectional lead screw move closer to each other (or away from each other), so that the moving frame pushes the ejector plate outward (or pulls it back) through the rotating rod, so that the multiple ejector columns installed on the ejector plate can eject the molded sole in the mold cavity, avoiding the molded sole from adhering to the mold cavity and making it difficult to unload. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a left-side structural schematic diagram of a molding die for a fireproof shoe injection molding machine proposed by the present invention;

[0025] Figure 2 This is a right side structural schematic diagram of a molding die for a fireproof shoe injection molding machine proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of the side structure of a support platform of a molding die for a fireproof shoe injection molding machine proposed by the present invention;

[0027] Figure 4 A schematic diagram of the swivel structure of a molding die for a fireproof shoe injection molding machine proposed by the present invention;

[0028] Figure 5 This is a schematic structural diagram of the upper and lower molds of a molding mold for a fireproof shoe injection molding machine proposed by the present invention in an expanded state;

[0029] Figure 6 This is a schematic diagram of the cross-sectional structure of an upper mold of a molding mold for a fireproof shoe injection molding machine proposed by the present invention;

[0030] Figure 7This is a schematic diagram of a partial cross-sectional structure of an upper mold of a molding mold for a fireproof shoe injection molding machine proposed by the present invention;

[0031] Figure 8 This is a schematic diagram of the structure of a trapezoidal lower pressing block of a molding die for a fireproof shoe injection molding machine proposed by the present invention;

[0032] Fig. 9 This is a schematic diagram of the structure of a fixed plate of a molding die for a fireproof shoe injection molding machine proposed by the present invention;

[0033] Fig.10 for Figure 4 A magnified view of the structure in the middle.

[0034] In the figure: 1. support table; 2. swivel; 3. vertical plate; 4. ejector plate; 5. upper mold; 6. lower mold; 7. C-shaped frame; 8. guide rail; 9. guide column; 10. driving gear; 11. tooth groove; 12. stepping motor; 13. discharge hopper; 14. mounting plate; 15. support column; 16. fixed plate; 161. closing section; 162. mold opening section; 163. unfolding section; 164. mold closing section; 17. two-way screw rod; 18. mounting groove; 19. moving frame; 20. ejector plate; 21. ejector column; 22. rotating rod; 23. transmission gear; 24. guide groove; 25. rack; 26. runner; 27. connecting pipe; 28. injection molding machine body; 29. ​​cutter; 30. reset spring rod; 31. lower pressure frame; 32. fixed support rod; 33. trapezoidal lower pressure block; 34. blowing nozzle. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] See attached Figure 1 -Attached Fig.10A molding mold of a fireproof shoe injection molding machine comprises a support platform 1, a swivel 2 is rotatably installed on the upper surface of the support platform 1, a discharge hopper 13 is fixedly installed on the outer surface of one side of the support platform 1, two groups of vertical plates 3 are evenly fixedly installed in a circumferential direction on the upper surface of the swivel 2, a top plate 4 is fixedly installed between the two groups of vertical plates 3, an upper mold 5 and a lower mold 6 are respectively installed between a group of two vertical plates 3, one side edge of the upper mold 5 and the lower mold 6 are hinged to each other, a C-shaped frame 7 is rotatably installed at the hinge center of the upper mold 5 and the lower mold 6, a guide rail 8 is fixedly installed on the outer surface of the vertical plate 3 in the horizontal direction, the side edge of the C-shaped frame 7 is slidably installed with the guide rail 8, and a supporting mechanism is installed between the upper mold 5 and the lower mold 6 and the vertical plate 3.

[0038] In this embodiment, the supporting mechanism includes a bidirectional screw rod 17 which is rotatably installed on the sides of the upper mold 5 and the lower mold 6. Two guide grooves 24 are symmetrically opened on the outer surface of the vertical plate 3. The ends of the bidirectional screw rod 17 are inserted into the inside of the guide groove 24 and are slidably installed with the inner wall thereof. A mold opening and closing mechanism is installed between the C-shaped frame 7 and the supporting platform 1.

[0039] In this embodiment, the mold opening and closing mechanism includes a support column 15 fixedly mounted on the upper surface of the support platform 1, a fixed plate 16 is fixedly mounted on the top of the support column 15, a closed-loop guide groove is opened on the upper surface of the fixed plate 16, and the closed-loop guide groove is composed of a closed section 161, a mold opening section 162, an expansion section 163 and a mold closing section 164 connected end to end, and a guide column 9 matching the closed-loop guide groove is fixedly mounted on the lower surface of the middle section of the C-shaped frame 7, and the guide column 9 is slidably mounted on the inner wall of the closed-loop guide groove.

[0040] In this embodiment, the upper mold 5 and the lower mold 6 are both equipped with a ejection mechanism, which includes a mounting groove 18 opened in the upper mold 5 and the lower mold 6, and a bidirectional screw 17 is arranged through the mounting groove 18. An ejection plate 20 is slidably installed on the inner wall of the mounting groove 18, and a plurality of ejection columns 21 are fixedly installed on the outer surface of the ejection plate 20 close to the mold cavity. The ejection columns 21 can be ejected from the mold cavity to the outside. A telescopic component is installed between the bidirectional screw 17 and the ejection plate 20, and the telescopic component includes two moving frames 19 symmetrically and laterally slidably installed on the inner wall of the mounting groove 18, and a rotating rod 22 is rotatably installed between the moving frame 19 and the ejection plate 20. The two ends of the bidirectional screw 17 respectively penetrate the outer surfaces of the two moving frames 19 and are threadedly connected thereto. A transmission component is installed between the bidirectional screw 17 and the vertical plate 3, and the transmission component includes a transmission gear 23 fixedly installed on the two end portions of the bidirectional screw 17, and a rack 25 matching the transmission gear 23 is vertically fixedly installed on the outer surface of the vertical plate 3 close to the guide groove 24.

[0041] When the bidirectional screw 17 moves, it will drive the transmission gear 23 to move synchronously. When the transmission gear 23 is meshed with the rack 25, the transmission gear 23 will roll on the rack 25, so that the transmission gear 23 drives the bidirectional screw 17 to rotate, so that the two moving frames 19 connected by threads on the outer sides of the two ends of the bidirectional screw 17 are brought closer to (or away from) each other, so that the moving frame 19 pushes the ejector plate 20 outward (or pulls it back) through the rotating rod 22, so that the multiple ejector columns 21 installed on the ejector plate 20 can eject the molded sole in the mold cavity, so as to avoid the molded sole adhering to the mold cavity and making it difficult to unload.

[0042] In this embodiment, a flow channel 26 connected to the interior of the mold cavity is penetrated through the outer surface of the upper mold 5 away from the hinged side, an injection molding machine body 28 is fixedly installed on the upper surface of the top plate 4, a connecting pipe 27 is fixedly installed between the discharge end of the injection molding machine body 28 and the flow channel 26, and a cut-off mechanism is installed inside the upper mold 5 near the flow channel 26.

[0043] When in use, the injection molding machine body 28 is connected to the flow channel 26 of the upper mold 5 in the closed mold state through the connecting pipe 27, so that the injection molding machine body 28 injects the melted plastic into the mold cavity of the upper mold 5 and the lower mold 6 in the closed mold state to complete the injection molding operation of the fire-proof shoe insole; the control method of the electrical components in this scheme is controlled by an external controller matched therewith, and the control circuit can be realized by simple programming by technicians in this field, which belongs to the common knowledge in this field, and is only used without improvement, and the present invention is mainly used to protect mechanical devices, so the present invention no longer explains the control method and circuit connection in detail.

[0044] In this embodiment, the cutting mechanism includes a cutter 29 inserted through the top of the upper mold 5, the position of the cutter 29 corresponds to the flow channel 26, a lower pressure frame 31 is fixedly installed on the top of the cutter 29, a return spring rod 30 is fixedly installed between the lower surface of the lower pressure frame 31 and the upper surface of the upper mold 5, a fixed support rod 32 is fixedly installed on the upper surface of the support platform 1, and a trapezoidal lower pressure block 33 corresponding to the lower pressure frame 31 is fixedly installed on the top of the fixed support rod 32, and the trapezoidal lower pressure block 33 is correspondingly arranged at the closed section 161.

[0045] After the insole after injection molding is cooled, the stepper motor 12 rotates again, so that the rotating ring 2 drives the upper mold 5 and the lower mold 6 that have completed the injection molding operation to continue to rotate through the vertical plate 3. When the guide column 9 on the C-shaped frame 7 continues to move in the closed section 161, the side of the lower pressing frame 31 installed on the upper mold 5 will abut against the oblique side of the trapezoidal lower pressing block 33, so that the trapezoidal lower pressing block 33 can push the lower pressing frame 31 downward, so that the lower pressing frame 31 drives the cutter 29 to move downward, so that the cutter 29 cuts off the plastic gate in the upper flow channel 26 of the upper mold 5, so that the subsequently injection-molded insole can be separated from the mold cavity of the upper mold 5.

[0046] In this embodiment, a driving gear 10 is rotatably installed on the upper surface of the support table 1, and a plurality of tooth grooves 11 meshing with the driving gear 10 are evenly opened on the outer periphery of the rotating ring 2. A stepper motor 12 is fixedly installed on the lower surface of the support table 1, and the output end of the stepper motor 12 passes through the upper surface of the support table 1 and is fixedly installed with the rotation center of the driving gear 10. A mounting plate 14 is also fixedly installed on the upper surface of the support table 1, and a plurality of mutually connected air blowing nozzles 34 are evenly fixedly installed on the outer surface of the mounting plate 14 close to the rotating ring 2.

[0047] When the guide column 9 moves to the expansion section 163, the guide column 9 will keep the upper mold 5 and the lower mold 6 in an open mold state through the C-frame 7. When the upper mold 5 and the lower mold 6 pass through the multiple air blowing nozzles 34 installed on the mounting plate 14, the multiple air blowing nozzles 34 will blow out strong airflows to purge the mold cavities of the upper mold 5 and the lower mold 6, so as to clean the residual plastic adhering to the mold cavities of the upper mold 5 and the lower mold 6, thereby ensuring the subsequent injection molding effect of the sole; and a device for spraying a release agent can also be installed at the rear section of the air blowing nozzle 34, so that the device for spraying a release agent sprays the release agent on the inside of the cleaned mold cavity, thereby improving the subsequent demolding effect of the sole.

[0048] A method for using a molding mold of a fireproof shoe injection molding machine comprises the following steps:

[0049] S1: The stepper motor 12 drives the driving gear 10 to rotate, so that the driving gear 10 drives the rotating ring 2 meshed with the gear 11 to rotate, so that the rotating ring 2 can drive the upper mold 5 and the lower mold 6 to rotate synchronously through the vertical plate 3. When the guide column 9 on the C-frame 7 rotatably mounted at the hinge center of the upper mold 5 and the lower mold 6 moves to the mold closing section 164 of the closed-loop guide groove, the guide column 9 will pull the hinge point of the upper mold 5 and the lower mold 6 inward through the C-frame 7, so that the upper mold 5 and the lower mold 6 can rotate synchronously. The end of the bidirectional screw 17 installed on the mold 6 slides along the guide groove 24. When the guide column 9 moves to the closed section 161, the upper mold 5 and the lower mold 6 complete the mold closing, and the stepper motor 12 stops running. At this time, the injection molding machine body 28 is connected to the flow channel 26 of the upper mold 5 in the mold closing state through the connecting pipe 27, so that the injection molding machine body 28 injects the melted plastic into the mold cavity of the upper mold 5 and the lower mold 6 in the mold closing state, completing the injection molding operation of the fireproof shoe insole;

[0050] S2: After the insole after injection molding is cooled, the stepper motor 12 rotates again, so that the rotating ring 2 drives the upper mold 5 and the lower mold 6 which have completed the injection molding operation to continue to rotate through the vertical plate 3. When the guide column 9 on the C-shaped frame 7 continues to move in the closed section 161, the cut-off mechanism cuts off the plastic gate in the flow channel 26 of the upper mold 5;

[0051] S3: When the guide column 9 moves to the mold opening section 162, the guide column 9 will push the hinge center of the upper mold 5 and the lower mold 6 outward through the C-shaped frame 7, so that the bidirectional screw rods 17 installed on the upper mold 5 and the lower mold 6 move in opposite directions along the guide groove 24, so that the mold cavities of the upper mold 5 and the lower mold 6 are expanded outward, which is convenient for demolding and unloading of the molded sole. The demolded sole falls on the discharge hopper 13, and then slides through the discharge hopper 13 into the external collection box for collection;

[0052] S4: When the guide pillar 9 moves to the expansion section 163, the guide pillar 9 will keep the upper mold 5 and the lower mold 6 in the open state through the C-frame 7. When the upper mold 5 and the lower mold 6 pass through the multiple blowing nozzles 34 installed on the mounting plate 14, the multiple blowing nozzles 34 will blow out strong airflows to purge the mold cavities of the upper mold 5 and the lower mold 6, and clean the residual plastic adhering to the mold cavities of the upper mold 5 and the lower mold 6.

[0053] From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects: when in use, the stepping motor 12 drives the driving gear 10 to rotate, so that the driving gear 10 drives the rotating ring 2 meshed with it through the tooth groove 11 to rotate, so that the rotating ring 2 can drive the upper mold 5 and the lower mold 6 to rotate synchronously through the vertical plate 3, and when the guide column 9 on the C-frame 7 rotatably installed at the hinge center of the upper mold 5 and the lower mold 6 moves to the mold closing section 164 of the closed-loop guide groove, the guide column 9 will connect the upper mold 5 and the lower mold through the C-frame 7. The hinge point of the upper mold 5 and the lower mold 6 is pulled inward, so that the ends of the bidirectional screw rods 17 installed on the upper mold 5 and the lower mold 6 slide along the guide groove 24. When the guide pillar 9 moves to the closing section 161, the upper mold 5 and the lower mold 6 complete the mold closing, and the stepper motor 12 stops running. At this time, the injection molding machine body 28 is connected to the flow channel 26 of the upper mold 5 in the mold closing state through the connecting pipe 27, so that the injection molding machine body 28 injects the melted plastic into the mold cavity of the upper mold 5 and the lower mold 6 in the mold closing state, completing the injection molding operation of the fire-proof shoe insole;

[0054] After the completed insole is cooled, the stepper motor 12 rotates again, so that the rotating ring 2 drives the upper mold 5 and the lower mold 6 that have completed the injection molding operation to continue to rotate through the vertical plate 3. When the guide pillar 9 on the C-shaped frame 7 continues to move in the closed section 161, the side of the lower pressing frame 31 installed on the upper mold 5 will abut against the oblique side of the trapezoidal lower pressing block 33, so that the trapezoidal lower pressing block 33 can push the lower pressing frame 31 downward, so that the lower pressing frame 31 drives the cutter 29 to move downward, so that the cutter 29 cuts off the plastic gate in the upper flow channel 26 of the upper mold 5, so that the subsequently injected insole can be separated from the mold cavity of the upper mold 5;

[0055] When the guide post 9 moves to the mold opening section 162, the guide post 9 will push the hinge center of the upper mold 5 and the lower mold 6 outward through the C-shaped frame 7, so that the bidirectional screw rods 17 installed on the upper mold 5 and the lower mold 6 move in opposite directions along the guide groove 24, so that the mold cavities of the upper mold 5 and the lower mold 6 are expanded outward, which is convenient for demolding and unloading of the molded sole. The demolded sole falls on the discharge hopper 13, and then slides through the discharge hopper 13 to the external collection box for collection. There is no need to manually remove the molded sole from the mold cavity, and the material removal is more convenient and quick.

[0056] When the bidirectional screw 17 moves, it will drive the transmission gear 23 to move synchronously. When the transmission gear 23 is meshed with the rack 25, the transmission gear 23 will roll on the rack 25, so that the transmission gear 23 drives the bidirectional screw 17 to rotate, so that the two moving frames 19 connected by threads on the outer sides of the two ends of the bidirectional screw 17 are brought closer to each other (or away from each other), so that the moving frame 19 pushes the ejector plate 20 outward (or pulls it back) through the rotating rod 22, so that the multiple ejector columns 21 installed on the ejector plate 20 can eject the molded sole in the mold cavity, so as to avoid the molded sole adhering to the mold cavity and making it difficult to discharge the material;

[0057] When the guide column 9 moves to the expansion section 163, the guide column 9 will keep the upper mold 5 and the lower mold 6 in an open state through the C-frame 7. When the upper mold 5 and the lower mold 6 pass through the multiple blowing nozzles 34 installed on the mounting plate 14, the multiple blowing nozzles 34 will blow out strong airflows to purge the mold cavities of the upper mold 5 and the lower mold 6, so as to clean the residual plastic adhering to the mold cavities of the upper mold 5 and the lower mold 6, thereby ensuring the subsequent injection molding effect of the sole.

[0058] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A molding die for a fireproof shoe injection molding machine, comprising a support platform (1), characterized in that: A swivel (2) is rotatably mounted on the upper surface of the support platform (1), a discharge hopper (13) is fixedly mounted on the outer surface of one side of the support platform (1), two groups of vertical plates (3) are evenly fixedly mounted in pairs on the upper surface of the swivel (2) in a circumferential direction, a top plate (4) is fixedly mounted between the two groups of vertical plates (3), an upper mold (5) and a lower mold (6) are respectively mounted between two of the vertical plates (3) in one group, one side edge of the upper mold (5) and the lower mold (6) are hinged to each other, and the hinge center of the upper mold (5) and the lower mold (6) is A C-shaped frame (7) is rotatably mounted, a guide rail (8) is transversely fixedly mounted on the outer surface of the vertical plate (3), the side of the C-shaped frame (7) is slidably mounted on the guide rail (8), a support mechanism is installed between the upper mold (5) and the lower mold (6) and the vertical plate (3), the support mechanism includes a bidirectional screw rod (17) that penetrates and is rotatably mounted on the side of the upper mold (5) and the lower mold (6), the outer surface of the vertical plate (3) is symmetrically provided with two guide grooves (24), the end of the bidirectional screw rod (17) is inserted into the inside of the guide groove (24) and is rotatably mounted therewith. The inner wall is slidably mounted, and a mold opening and closing mechanism is installed between the C-shaped frame (7) and the support platform (1), and the mold opening and closing mechanism includes a support column (15) fixedly mounted on the upper surface of the support platform (1), and a fixed plate (16) is fixedly mounted on the top of the support column (15), and a closed-loop guide groove is opened on the upper surface of the fixed plate (16), and the closed-loop guide groove is composed of a closing section (161), a mold opening section (162), an expansion section (163) and a mold closing section (164) connected end to end. The lower surface of the middle section of the C-shaped frame (7) is fixedly mounted with A guide post (9) matched with the closed-loop guide groove is slidably mounted on the inner wall of the closed-loop guide groove. When the guide post (9) on the C-frame (7) rotatably mounted at the hinge center of the upper mold (5) and the lower mold (6) moves to the mold closing section (164) of the closed-loop guide groove, the guide post (9) will pull the hinge point of the upper mold (5) and the lower mold (6) inward through the C-frame (7). When the guide post (9) moves to the mold opening section (162), the guide post (9) will push the hinge center of the upper mold (5) and the lower mold (6) outward through the C-frame (7).

2. The fireproof shoe injection molding machine molding die according to claim 1, characterized in that: The upper mold (5) and the lower mold (6) are both provided with an ejection mechanism, the ejection mechanism comprising a mounting groove (18) opened inside the upper mold (5) and the lower mold (6), the bidirectional screw rod (17) passing through the mounting groove (18), an ejection plate (20) being slidably mounted on the inner wall of the mounting groove (18), a plurality of ejection columns (21) being fixedly mounted on the outer surface of the ejection plate (20) close to the mold cavity, the ejection columns (21) being capable of ejecting from the mold cavity to the outside, and a telescopic component being installed between the bidirectional screw rod (17) and the ejection plate (20).

3. The fireproof shoe injection molding machine mold according to claim 2, characterized in that: The telescopic assembly comprises two movable frames (19) symmetrically and laterally slidably mounted on the inner wall of the mounting groove (18); a rotating rod (22) is rotatably mounted between the movable frames (19) and the ejection plate (20); two ends of the bidirectional screw rod (17) respectively penetrate the outer surfaces of the two movable frames (19) and are threadedly connected thereto; and a transmission assembly is installed between the bidirectional screw rod (17) and the vertical plate (3).

4. The fireproof shoe injection molding machine mold according to claim 3 is characterized in that: The transmission assembly comprises a transmission gear (23) fixedly mounted on both ends of the bidirectional screw rod (17), and a rack (25) matching the transmission gear (23) is vertically fixedly mounted on the outer surface of the vertical plate (3) close to the guide groove (24).

5. The fireproof shoe injection molding machine molding die according to claim 1, characterized in that: The outer surface of the upper mold (5) away from the hinged side is penetrated by a flow channel (26) connected to the interior of the mold cavity, the upper surface of the top plate (4) is fixedly mounted with an injection molding machine body (28), a connecting pipe (27) is fixedly mounted between the discharge end of the injection molding machine body (28) and the flow channel (26), and a cut-off mechanism is mounted inside the upper mold (5) close to the flow channel (26).

6. The fireproof shoe injection molding machine mold according to claim 5, characterized in that: The cutting mechanism comprises a cutter (29) inserted through the top of the upper mold (5), the position of the cutter (29) corresponding to the flow channel (26), a lower pressure frame (31) is fixedly installed on the top of the cutter (29), a return spring rod (30) is fixedly installed between the lower surface of the lower pressure frame (31) and the upper surface of the upper mold (5), a fixed support rod (32) is fixedly installed on the upper surface of the support platform (1), and a trapezoidal lower pressure block (33) corresponding to the lower pressure frame (31) is fixedly installed on the top of the fixed support rod (32), and the trapezoidal lower pressure block (33) is correspondingly arranged at the closed section (161).

7. The fireproof shoe injection molding machine mold according to claim 1, characterized in that: A driving gear (10) is rotatably mounted on the upper surface of the support platform (1), a plurality of tooth grooves (11) meshing with the driving gear (10) are evenly arranged on the outer circumference of the rotating ring (2), a stepping motor (12) is fixedly mounted on the lower surface of the support platform (1), an output end of the stepping motor (12) passes through the upper surface of the support platform (1) and is fixedly mounted to the rotation center of the driving gear (10), a mounting plate (14) is also fixedly mounted on the upper surface of the support platform (1), and a plurality of mutually connected air blowing nozzles (34) are evenly fixedly mounted on the outer surface of the mounting plate (14) on the side close to the rotating ring (2).

8. A method for using a molding mold of a fireproof shoe injection molding machine, characterized in that: Using a fireproof shoe injection molding machine molding mold as described in any one of claims 1 to 7, The following steps are involved: S1: The driving gear (10) is driven to rotate by the stepping motor (12), so that the driving gear (10) drives the rotating ring (2) meshed with the rotating ring (11) to rotate, so that the rotating ring (2) can drive the upper mold (5) and the lower mold (6) to rotate synchronously through the vertical plate (3). When the guide column (9) on the C-type frame (7) rotatably mounted at the hinge center of the upper mold (5) and the lower mold (6) moves to the mold closing section (164) of the closed-loop guide groove, the guide column (9) will pull the hinge point of the upper mold (5) and the lower mold (6) inward through the C-type frame (7), so that the upper mold (5) and the lower mold (6) are rotated synchronously. 5) and the end of the bidirectional screw rod (17) installed on the lower mold (6) slide along the guide groove (24), and when the guide column (9) moves to the closing section (161), the upper mold (5) and the lower mold (6) complete the mold closing, and the stepper motor (12) stops running. At this time, the injection molding machine body (28) is connected to the flow channel (26) of the upper mold (5) in the mold closing state through the connecting pipe (27), so that the injection molding machine body (28) injects the melted plastic into the mold cavity of the upper mold (5) and the lower mold (6) in the mold closing state, completing the injection molding operation of the fire-proof shoe insole; S2: After the insole after injection molding is cooled, the stepper motor (12) rotates again, so that the rotating ring (2) drives the upper mold (5) and the lower mold (6) that have completed the injection molding operation to continue to rotate through the vertical plate (3), and when the guide column (9) on the C-shaped frame (7) continues to move in the closed section (161), the cut-off mechanism cuts off the plastic gate in the upper flow channel (26) of the upper mold (5); S3: When the guide post (9) moves to the mold opening section (162), the guide post (9) pushes the hinge center of the upper mold (5) and the lower mold (6) outward through the C-shaped frame (7), so that the bidirectional screw rods (17) installed on the upper mold (5) and the lower mold (6) move in opposite directions along the guide groove (24), so that the mold cavities of the upper mold (5) and the lower mold (6) are expanded outward, which facilitates the demoulding and unloading of the molded sole. The demoulded sole falls onto the discharge hopper (13), and then slides through the discharge hopper (13) into the external collection box for collection; S4: When the guide post (9) moves to the expansion section (163), the guide post (9) will keep the upper mold (5) and the lower mold (6) in an open mold state through the C-shaped frame (7). When the upper mold (5) and the lower mold (6) pass through the multiple air blowing nozzles (34) installed on the mounting plate (14), the multiple air blowing nozzles (34) will blow out strong airflows to purge the mold cavities of the upper mold (5) and the lower mold (6), thereby cleaning the residual plastic adhering to the mold cavities of the upper mold (5) and the lower mold (6).

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