Injection mold and method convenient for heat export

Abstract

The invention discloses an injection mold and method facilitating heat export, and relates to the technical field of injection molds. The injection mold comprises a supporting table arranged at the top of the ground; the supporting frame is fixedly mounted on the rear side of the supporting table; the hydraulic equipment fixedly penetrates through the top of the supporting frame; the connecting plate is fixedly mounted at the output end of the hydraulic equipment; the upper mold is fixedly mounted at the bottom of the connecting plate; the supporting rod is fixedly mounted at the top of the supporting table, and the supporting rod is used for supporting the connecting plate; the U-shaped rod is fixedly mounted at the top of the supporting table; and the scraping plate moves towards the front side to be in contact with the lower mold and push the residual solid plastic at the top of the lower mold, and the scraping plate helps to remove the residual plastic, so that non-uniform heat accumulation generated during plastic cooling is avoided, heat is conveniently guided out, and local overheating is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, and in particular to an injection mold and a method for facilitating heat conduction. Background Art

[0002] Injection molds that facilitate heat dissipation usually consist of a support table, hydraulic equipment, switches, an upper mold and a lower mold.

[0003] The patent with the patent announcement number CN114986810B relates to an environmentally friendly plastic injection mold, which includes a fixing device and a lifting device arranged on the top of the fixing device, the fixing device includes a fixing mechanism, the fixing mechanism includes a base, the top of the base is provided with an injection molding groove, and the bottom of the injection molding groove is provided with an injection molding tube. When cooling and plasticizing the injection molded part, the patent uses a three-layer water flow structure to reduce the heat inside the injection molded part in sequence, so that the injection molded part will not experience a sudden drop in temperature during the cooling process, which will cause damage to the injection molded part. Compared with the common cooling method, it can ensure the cooling effect of the injection molded part while avoiding damage to the injection molded part due to severe thermal expansion and contraction, and when the lifting block is opened, the water in the inner cavity, the middle cavity and the outer cavity is sequentially added to the surface of the injection molded part, completing the further gradual cooling of the injection molded part, and at the same time, it is easy to demould the injection molded part.

[0004] In the above patent, when the lifting block is opened, water in the inner cavity, the middle cavity and the outer cavity are sequentially added to the surface of the injection-molded part, thereby completing further gradual cooling of the injection-molded part and facilitating demoulding of the injection-molded part. However, it is difficult to prevent the upper mold from colliding and squeezing with the scraper. The collision or squeezing between the upper mold and the scraper will generate a large impact force, resulting in deformation or damage of the upper mold, and further causing quality problems of the injection-molded part due to uneven cooling. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an injection mold and method that facilitates heat dissipation, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an injection mold that is convenient for heat extraction, comprising: a support platform, the support platform is arranged on the top of the ground; a support frame, the support frame is fixedly installed on the rear side of the support platform; a hydraulic device, the hydraulic device is fixedly passed through the top of the support frame; a connecting plate, the connecting plate is fixedly installed on the output end of the hydraulic device; an upper mold, the upper mold is fixedly installed on the bottom of the connecting plate; a support rod, the support rod is fixedly installed on the top of the support platform, and the support rod is used to support the connecting plate; a U-shaped rod, the U-shaped rod is fixedly installed on the top of the support platform; a placement slot, the placement slot A placement slot is provided on the top of the support platform, and the placement slot is provided with a placement hole; a lower mold, the lower mold is fixedly mounted on the bottom of the inner wall of the placement slot; a servo motor, the servo motor is fixedly mounted on the top of the support platform; a screw rod, the screw rod is fixedly mounted on the output end of the servo motor; a scraper, the scraper is slidably mounted on the circumferential surface of the U-shaped rod, the scraper is threadedly connected to the screw rod, and the U-shaped rod is used to support the scraper; an injection molding tube, the injection molding tube is fixedly mounted on the right side of the lower mold, the injection molding tube is used to guide the hot-melt plastic into the lower mold, and the scraper moves forward to contact the lower mold and push the solid plastic remaining on the top of the lower mold.

[0007] According to the above technical solution, a square groove is provided on the top of the support platform, a protection rod is fixedly installed on the rear side of the support platform, a protection plate is slidably installed on the circumferential surface of the protection rod, a protection hole is provided at the bottom of the protection plate, and a switch is fixedly installed at the bottom of the inner wall of the square groove, and the hydraulic equipment can be controlled by the switch.

[0008] According to the above technical solution, a rack is fixedly installed on the front side of the scraper, and a No. 1 spring is arranged between the protection rod and the protection plate. The protection plate moves toward the direction close to the support frame to reset and squeeze the No. 1 spring. The No. 1 spring is squeezed by the protection plate to deform and accumulate force. After the protection plate is separated from the contact with the scraper, the protection plate can be driven to reset by the No. 1 spring. The switch is electrically connected to the hydraulic equipment, the protection plate is in contact with the inner wall of the square groove, and the protection hole is aligned with the switch so that the protection plate releases the limit on the switch.

[0009] According to the above technical solution, a clearing component for preventing the injection molding tube from being blocked is arranged on the right side of the lower mold, and a demoulding component is arranged on the right side of the lower mold. The clearing component includes a connecting tube, an extrusion frame, a gear, an elastic telescopic rod and a connecting groove. The extrusion frame rotates to stir the solidified plastic inside the injection molding tube, the connecting tube is slidably installed on the inner wall of the injection molding tube, the extrusion frame rotates to penetrate the inner and outer walls of the injection molding tube, the gear is fixedly installed on the circumferential surface of the extrusion frame, the elastic telescopic rod is fixedly installed on the circumferential surface of the injection molding tube, and the connecting groove is opened on the circumferential surface of the connecting tube.

[0010] According to the above technical solution, a protective groove is provided at the free end of the elastic telescopic rod, and a protective plate is slidably installed on the circumferential surface of the injection molding tube. The protective plate moves upward to break away from the contact with the protective groove and releases the limit on the free end of the elastic telescopic rod. A No. 2 spring is arranged between the protective plate and the injection molding tube. The protective plate moves upward to squeeze the No. 2 spring. The No. 2 spring is deformed and accumulates force due to the squeezing of the protective plate. After the protective plate is manually released, the No. 2 spring can drive the protective plate to reset. A linkage rod is fixedly installed on the circumferential surface of the extrusion frame, and the front side of the linkage rod is set as an arc surface.

[0011] According to the above technical solution, the free end of the elastic telescopic rod is in contact with the inner wall of the connecting groove, a No. 1 fluororubber sealing ring is arranged between the connecting tube and the injection molding tube, and the No. 1 fluororubber sealing ring can increase the sealing between the connecting tube and the injection molding tube, and a No. 2 fluororubber sealing ring is arranged between the extrusion frame and the injection molding tube, and the No. 2 fluororubber sealing ring can increase the sealing between the extrusion frame and the injection molding tube, and the extrusion frame is in contact with the inner wall of the injection molding tube.

[0012] According to the above technical scheme, the demolding assembly includes a demolding rod, a demolding frame, a reset spring, a demolding disk and a semicircular block. The demolding frame moves in a direction away from the demolding disk to extrude and push the stuck product. The demolding rod is fixedly installed on the right side of the lower mold, and the demolding frame is slidably installed on the circumferential surface of the demolding rod. The reset spring is arranged between the demolding frame and the lower mold. The demolding frame moves in a direction away from the demolding disk to extrude the reset spring. The reset spring is deformed and accumulates force due to the extrusion of the demolding frame. After the linkage rod is separated from the contact with the demolding frame, the reset spring can drive the demolding frame to reset. The demolding disk is fixedly installed on the right side of the demolding rod, and the semicircular block is fixedly installed on the left side of the demolding disk.

[0013] According to the above technical solution, the demolding frame is in contact with the semicircular block, the demolding frame passes through the right side of the lower mold, and a No. 3 fluororubber sealing ring is arranged between the demolding frame and the lower mold. The No. 3 fluororubber sealing ring can increase the sealing between the demolding frame and the lower mold. The right side of the demolding frame is arranged as an inclined surface, and the friction between the linkage rod and the demolding frame can be reduced by the inclined surface of the demolding frame. The demolding frame moves to the right side to reset and hits the semicircular block to generate vibration.

[0014] A method for using an injection mold that facilitates heat dissipation, using the above-mentioned injection mold that facilitates heat dissipation, includes the following steps: Step 1: The servo motor rotates in the opposite direction to drive the screw rod to rotate in the opposite direction, and the screw rod rotates in the opposite direction to drive the scraper to move backward to reset, and the scraper moves backward to reset and contact the protection plate to squeeze the protection plate; Step 2: The protection plate is squeezed by the scraper and moves toward the support frame to reset. The protection plate moves toward the support frame so that the protection hole is aligned with the switch. The protection hole is aligned with the switch so that the protection plate releases the limit on the switch. Step 3: After the limit of the switch is released, manually press the switch to drive the output end of the hydraulic equipment to move downward, the output end of the hydraulic equipment moves downward to drive the connecting plate to move downward, the connecting plate moves downward to drive the upper mold to move downward, the upper mold moves downward to contact the lower mold and complete the mold closing; Step 4: After the upper mold and the lower mold are in contact and the mold is closed, the external injection molding mechanism is started to inject the hot melt plastic into the space between the upper mold and the lower mold through the injection molding tube for injection molding.

[0015] The present invention provides an injection mold that facilitates heat dissipation and has the following beneficial effects: (1) The invention, by moving the scraper forward to contact the lower mold and push the solid plastic remaining on the top of the lower mold, helps to remove the residual plastic, so that the surface of the upper mold and the lower mold remain clean, thereby avoiding uneven heat accumulation when the plastic is cooled, thereby facilitating heat dissipation and preventing local overheating, thereby reducing the loss and deformation of the upper mold and the lower mold. By aligning the protective hole with the switch, the protective plate releases the limit on the switch. By releasing the limit on the switch by the protective plate, the correct movement of the scraper and the upper mold can be ensured, avoiding collision between the scraper and the upper mold, thereby improving the molding accuracy of the product.

[0016] (2) The invention stirs the solidified plastic inside the injection molding tube by rotating the extrusion frame. The solidified plastic is easy to accumulate or form a blockage in the injection molding tube. The rotation of the extrusion frame can effectively break up the accumulation of solidified plastic, keep the tube unobstructed, thereby avoiding blockage and ensuring the smooth progress of the injection molding process.

[0017] (3) In the present invention, the protective plate is manually pushed upward to break away from the contact with the protective groove and release the limit on the free end of the elastic telescopic rod. The fixing effect of the protective plate can ensure that the connection between the injection molding tube and the external injection molding mechanism is not loose, thereby reducing the risk of leakage and ensuring the quality of the injection molded parts.

[0018] (4) The present invention squeezes and pushes the stuck product by moving the demolding frame away from the demolding plate. The squeezing of the demolding frame can effectively help the product to be demolded smoothly, reduce the occurrence of jamming, and thus avoid production stagnation caused by jamming.

[0019] (5) In the present invention, the demoulding frame moves to the right to reset and impact the semicircular block to generate vibration. The vibration of the demoulding frame drives the lower mold to resonate together. The impact force and resonance effect generated by the vibration can further accelerate the demoulding process, thereby improving the stability of the product demoulding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the position structure of the support frame and the hydraulic equipment of the present invention; Figure 3 It is a schematic diagram of a half-section structure of a support platform of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement of part A; Figure 5 This is a schematic diagram of the position structure of the screw rod and the scraper of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the structure of part B in the middle is enlarged; Figure 7 It is a schematic diagram of the half-section structure of the injection molded tube of the present invention.

[0021] In the figure: 1. support table; 2. support frame; 3. hydraulic equipment; 4. connecting plate; 5. upper mold; 6. support rod; 7. U-shaped rod; 8. placement groove; 9. lower mold; 10. servo motor; 11. screw rod; 12. scraper; 13. square groove; 14. protection rod; 15. protection plate; 16. protection hole; 17. switch; 18. rack; 191. injection tube; 192. connecting tube; 193. extrusion frame; 194. gear; 195. elastic telescopic rod; 196. connecting groove; 197. protection groove; 198. protection plate; 199. linkage rod; 201. demoulding rod; 202. demoulding frame; 203. reset spring; 204. demoulding plate; 205. semicircular block. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 6, one embodiment of the present invention is: an injection mold that is convenient for heat conduction, a support platform 1, the support platform 1 is set on the top of the ground; a support frame 2, the support frame 2 is fixedly installed on the rear side of the support platform 1; a hydraulic device 3, the hydraulic device 3 is fixedly passed through the top of the support frame 2; a connecting plate 4, the connecting plate 4 is fixedly installed at the output end of the hydraulic device 3; an upper mold 5, the upper mold 5 is fixedly installed at the bottom of the connecting plate 4; a support rod 6, the support rod 6 is fixedly installed on the top of the support platform 1, and the support rod 6 is used to support the connecting plate 4; a U-shaped rod 7, the U-shaped rod 7 is fixedly installed on the top of the support platform 1; a placement groove 8, the placement groove 8 is opened on the top of the support platform 1, and the placement groove 8 is opened with a placement hole; a lower mold 9, the lower mold 9 is fixedly installed in the placement groove 8 The bottom of the wall; the servo motor 10, which is fixedly mounted on the top of the support platform 1; the screw rod 11, which is fixedly mounted on the output end of the servo motor 10; the scraper 12, which is slidably mounted on the circumferential surface of the U-shaped rod 7, and the scraper 12 is threadedly connected to the screw rod 11, and the U-shaped rod 7 is used to support the scraper 12; the injection tube 191, which is fixedly mounted on the right side of the lower mold 9, and the injection tube 191 is used to introduce the hot-melt plastic into the lower mold 9, and push the solid plastic remaining on the top of the lower mold 9. The scraper 12 helps to remove the residual plastic, so that the surface of the upper mold 5 and the lower mold 9 remains clean, thereby avoiding uneven heat accumulation when the plastic is cooled, thereby facilitating heat extraction and preventing local overheating.

[0024] A square groove 13 is provided on the top of the support platform 1, a protection rod 14 is fixedly installed on the rear side of the support platform 1, a protection plate 15 is slidably installed on the circumferential surface of the protection rod 14, a protection hole 16 is provided at the bottom of the protection plate 15, and a switch 17 is fixedly installed at the bottom of the inner wall of the square groove 13, and the hydraulic equipment 3 can be controlled by the switch 17.

[0025] A rack 18 is fixedly installed on the front side of the scraper 12, and a No. 1 spring is arranged between the protection rod 14 and the protection plate 15. The protection plate 15 moves toward the direction close to the support frame 2 to reset and squeeze the No. 1 spring. The No. 1 spring is squeezed by the protection plate 15 to deform and accumulate force. After the protection plate 15 is separated from the contact with the scraper 12, the protection plate 15 can be driven to reset by the No. 1 spring. The switch 17 is electrically connected to the hydraulic equipment 3, the protection plate 15 contacts the inner wall of the square groove 13, and the protection hole 16 is aligned with the switch 17 so that the protection plate 15 releases the limit on the switch 17. By releasing the limit on the switch 17 by the protection plate 15, the correct movement of the scraper 12 and the upper mold 5 can be ensured, and the collision between the scraper 12 and the upper mold 5 can be avoided, thereby improving the molding accuracy of the product.

[0026] A method for using an injection mold that facilitates heat dissipation, using the above-mentioned injection mold that facilitates heat dissipation, includes the following steps: Step 1: The servo motor 10 rotates in the reverse direction to drive the screw rod 11 to rotate in the reverse direction, and the screw rod 11 rotates in the reverse direction to drive the scraper 12 to move backward and reset, and the scraper 12 moves backward and resets to contact and squeeze the protection plate 15; Step 2: The protection plate 15 is squeezed by the scraper 12 and moves toward the support frame 2 to reset. The protection plate 15 moves toward the support frame 2 so that the protection hole 16 is aligned with the switch 17. The protection hole 16 is aligned with the switch 17 so that the protection plate 15 releases the limit on the switch 17; Step 3: After the limit of the switch 17 is released, the switch 17 is manually pressed to drive the output end of the hydraulic device 3 to move downward, the output end of the hydraulic device 3 moves downward to drive the connecting plate 4 to move downward, the connecting plate 4 moves downward to drive the upper mold 5 to move downward, the upper mold 5 moves downward to contact the lower mold 9 and complete the mold closing; Step 4: After the upper mold 5 and the lower mold 9 are in contact and mold closing is completed, the external injection molding mechanism is started to inject the hot melt plastic into the space between the upper mold 5 and the lower mold 9 through the injection molding tube 191 for injection molding.

[0027] When this embodiment is working: the servo motor 10 rotates to drive the screw rod 11 to rotate, the screw rod 11 rotates to drive the scraper 12 to move forward, the scraper 12 moves forward to contact the lower mold 9 and push the solid plastic remaining on the top of the lower mold 9, and at the same time the scraper 12 moves forward to break away from the contact with the protective plate 15, after the protective plate 15 breaks away from the contact with the scraper 12, the protective plate 15 moves forward under the elastic force of the first spring, the protective plate 15 moves forward to cause the protective hole 16 to deviate, the protective hole 16 deviates so that the protective plate 15 blocks and limits the switch 17, and the servo motor 10 rotates in the opposite direction to drive the screw rod 11 to rotate in the opposite direction, the screw rod 11 rotates in the opposite direction to drive the scraper 12 to move backward to reset, the scraper 12 moves backward to reset and contacts the protective plate 15 and The plate 15 is extruded, and the protection plate 15 is squeezed by the scraper 12 and moves to the direction close to the support frame 2 to reset. The protection plate 15 moves in the direction close to the support frame 2 so that the protection hole 16 is aligned with the switch 17. The protection hole 16 is aligned with the switch 17 so that the protection plate 15 releases the limit on the switch 17. After the limit of the switch 17 is released, the switch 17 is manually pressed to drive the output end of the hydraulic equipment 3 to move downward. The output end of the hydraulic equipment 3 moves downward to drive the connecting plate 4 to move downward. The connecting plate 4 moves downward to drive the upper mold 5 to move downward. The upper mold 5 moves downward to contact with the lower mold 9 and complete the mold closing. After the upper mold 5 contacts with the lower mold 9 and completes the mold closing, the external injection molding mechanism is started to inject the hot melt plastic into the space between the upper mold 5 and the lower mold 9 through the injection molding tube 191 for injection molding.

[0028] See also Figure 1-Figure 7On the basis of the above embodiment, in another embodiment of the present invention, a dredging component for preventing the injection tube 191 from being blocked is provided on the right side of the lower mold 9, and a demoulding component is provided on the right side of the lower mold 9. The dredging component includes a connecting tube 192, an extrusion frame 193, a gear 194, an elastic telescopic rod 195 and a connecting groove 196. The connecting tube 192 is slidably mounted on the inner wall of the injection tube 191, the extrusion frame 193 rotates to penetrate the inner and outer walls of the injection tube 191, the gear 194 is fixedly mounted on the circumferential surface of the extrusion frame 193, the elastic telescopic rod 195 is fixedly mounted on the circumferential surface of the injection tube 191, and the connecting groove 196 is opened on the circumferential surface of the connecting tube 192. Through the rotation of the extrusion frame 193, the accumulation of solidified plastic can be effectively broken, the pipeline can be kept unobstructed, thereby avoiding blockage and ensuring the smooth progress of the injection molding process.

[0029] A protective groove 197 is provided at the free end of the elastic telescopic rod 195, and a protective plate 198 is slidably installed on the circumferential surface of the injection molding tube 191. A No. 2 spring is arranged between the protective plate 198 and the injection molding tube 191. The protective plate 198 moves upward to squeeze the No. 2 spring. The No. 2 spring is squeezed by the protective plate 198 to produce deformation and accumulate force. After the protective plate 198 is manually released, the No. 2 spring can drive the protective plate 198 to reset. A linkage rod 199 is fixedly installed on the circumferential surface of the extrusion frame 193, and the front side of the linkage rod 199 is set to an arc surface. Through the fixing effect of the protective plate 198, it can be ensured that the connection between the injection molding tube 191 and the external injection molding mechanism is not loose, thereby reducing the risk of leakage and ensuring the quality of the injection molded parts.

[0030] The free end of the elastic telescopic rod 195 contacts the inner wall of the connecting groove 196, and a No. 1 fluororubber sealing ring is arranged between the connecting tube 192 and the injection molding tube 191, and the No. 1 fluororubber sealing ring can increase the sealing between the connecting tube 192 and the injection molding tube 191, and a No. 2 fluororubber sealing ring is arranged between the extrusion frame 193 and the injection molding tube 191, and the No. 2 fluororubber sealing ring can increase the sealing between the extrusion frame 193 and the injection molding tube 191, and the extrusion frame 193 contacts the inner wall of the injection molding tube 191.

[0031] The demoulding assembly includes a demoulding rod 201, a demoulding frame 202, a return spring 203, a demoulding disk 204 and a semicircular block 205. The demoulding rod 201 is fixedly installed on the right side of the lower mold 9, and the demoulding frame 202 is slidably installed on the circumferential surface of the demoulding rod 201. The return spring 203 is arranged between the demoulding frame 202 and the lower mold 9. The demoulding frame 202 moves in the direction away from the demoulding disk 204 to squeeze the return spring 203. The return spring 203 is squeezed by the demoulding frame 202 to deform and accumulate force. After the linkage rod 199 is separated from the contact with the demoulding frame 202, the return spring 203 can drive the demoulding frame 202 to reset. The demoulding disk 204 is fixedly installed on the right side of the demoulding rod 201, and the semicircular block 205 is fixedly installed on the left side of the demoulding disk 204. The squeezing of the demoulding frame 202 can effectively help the product to be demoulded smoothly, reduce the occurrence of jamming, and thus avoid production stagnation caused by jamming.

[0032] The demolding frame 202 is in contact with the semicircular block 205. The demolding frame 202 runs through the right side of the lower mold 9. A No. 3 fluororubber sealing ring is arranged between the demolding frame 202 and the lower mold 9. The No. 3 fluororubber sealing ring can increase the sealing between the demolding frame 202 and the lower mold 9. The right side of the demolding frame 202 is arranged as an inclined surface. The inclined surface of the demolding frame 202 can reduce the friction between the linkage rod 199 and the demolding frame 202. The impact force and resonance effect generated by vibration can further accelerate the demolding process, thereby improving the stability of the product demolding process.

[0033] When the present embodiment is working, the scraper 12 moves forward to drive the rack 18 to move forward, the rack 18 moves forward to contact the gear 194 and squeeze the gear 194, the gear 194 is squeezed by the rack 18 to rotate, the gear 194 rotates to drive the extrusion frame 193 to rotate, the extrusion frame 193 rotates to stir the solidified plastic inside the injection tube 191, and when the injection tube 191 is docked with the external injection molding mechanism, the protective plate 198 is manually pushed upward to move, the protective plate 198 moves upward to break away from the contact with the protective groove 197 and release the limit on the free end of the elastic telescopic rod 195, and wait until the limit of the free end of the elastic telescopic rod 195 After the release, the free end of the elastic telescopic rod 195 is manually pushed to move to the right, and the free end of the elastic telescopic rod 195 moves to the right to break away from the contact with the connecting groove 196 and release the limit on the connecting tube 192. After the limit of the connecting tube 192 is released, the connecting tube 192 is manually pushed to move vertically to dock with the external injection molding mechanism. After the docking of the connecting tube 192 with the external injection molding mechanism is completed, the free end of the elastic telescopic rod 195 is released so that the free end of the elastic telescopic rod 195 moves to the left to reset under the action of its own elastic force, and the free end of the elastic telescopic rod 195 moves to the left to reset and contact the inner wall of the connecting groove 196 and restore the limit on the connecting tube 192.

[0034] The extrusion frame 193 rotates to drive the linkage rod 199 to rotate. The linkage rod 199 rotates to contact the inclined surface of the demolding frame 202 and extrude the demolding frame 202. The demolding frame 202 is squeezed by the linkage rod 199 and moves in the direction away from the demolding disk 204. The demolding frame 202 moves in the direction away from the demolding disk 204 to extrude and push the stuck product. When the linkage rod 199 continues to rotate and disengage from the contact with the demolding frame 202, the linkage rod 199 disengages from the contact with the demolding frame 202, so that the demolding frame 202 moves to the right side and resets under the elastic force of the reset spring 203. The demolding frame 202 moves to the right side and resets, hitting the semicircular block 205 to generate vibration. The vibration of the demolding frame 202 drives the lower mold 9 to resonate together.

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

Claims

1. An injection mold that facilitates heat dissipation, characterized in that: include: A support platform (1), the support platform (1) being arranged on top of the ground; A support frame (2), the support frame (2) being fixedly mounted on the rear side of the support platform (1); A hydraulic device (3), wherein the hydraulic device (3) is fixedly inserted through the top of the support frame (2); A connecting plate (4), wherein the connecting plate (4) is fixedly mounted on the output end of the hydraulic device (3); An upper mold (5), wherein the upper mold (5) is fixedly mounted on the bottom of the connecting plate (4); A support rod (6), the support rod (6) being fixedly mounted on the top of the support platform (1), and the support rod (6) being used to support the connection plate (4); A U-shaped rod (7), wherein the U-shaped rod (7) is fixedly mounted on the top of the support platform (1); A placement groove (8), the placement groove (8) being arranged on the top of the support platform (1), and the placement groove (8) being provided with a placement hole; A lower mold (9), wherein the lower mold (9) is fixedly mounted on the bottom of the inner wall of the placement groove (8); A servo motor (10), wherein the servo motor (10) is fixedly mounted on the top of the support platform (1); A screw rod (11), wherein the screw rod (11) is fixedly mounted on an output end of the servo motor (10); A scraper (12), the scraper (12) being slidably mounted on the circumferential surface of the U-shaped rod (7), the scraper (12) being threadedly connected to the screw rod (11), and the U-shaped rod (7) being used to support the scraper (12); An injection molding tube (191), the injection molding tube (191) being fixedly mounted on the right side of the lower mold (9), the injection molding tube (191) being used to guide hot melt plastic into the interior of the lower mold (9); A dredging component for preventing the injection tube (191) from being blocked is arranged on the right side of the lower mold (9), and a demoulding component is arranged on the right side of the lower mold (9).

2. The injection mold for facilitating heat dissipation according to claim 1, characterized in that: A square groove (13) is provided on the top of the support platform (1), a protection rod (14) is fixedly mounted on the rear side of the support platform (1), a protection plate (15) is slidably mounted on the circumferential surface of the protection rod (14), a protection hole (16) is provided at the bottom of the protection plate (15), and a switch (17) is fixedly mounted on the bottom of the inner wall of the square groove (13).

3. The injection mold for facilitating heat dissipation according to claim 2, characterized in that: A rack (18) is fixedly mounted on the front side of the scraper (12), a No. 1 spring is provided between the protection rod (14) and the protection plate (15), the switch (17) is electrically connected to the hydraulic device (3), and the protection plate (15) is in contact with the inner wall of the square groove (13).

4. The injection mold for facilitating heat dissipation according to claim 3, characterized in that: The dredging component comprises a connecting tube (192), an extrusion frame (193), a gear (194), an elastic telescopic rod (195) and a connecting groove (196); the connecting tube (192) is slidably mounted on the inner wall of the injection tube (191); the extrusion frame (193) rotates to penetrate the inner and outer walls of the injection tube (191); the gear (194) is fixedly mounted on the circumferential surface of the extrusion frame (193); the elastic telescopic rod (195) is fixedly mounted on the circumferential surface of the injection tube (191); and the connecting groove (196) is provided on the circumferential surface of the connecting tube (192).

5. The injection mold for facilitating heat dissipation according to claim 4, characterized in that: The free end of the elastic telescopic rod (195) is provided with a protective groove (197); a protective plate (198) is slidably mounted on the circumferential surface of the injection molding tube (191); a second spring is arranged between the protective plate (198) and the injection molding tube (191); a linkage rod (199) is fixedly mounted on the circumferential surface of the extrusion frame (193); and the front side of the linkage rod (199) is arranged as an arc surface.

6. The injection mold for facilitating heat dissipation according to claim 5, characterized in that: The free end of the elastic telescopic rod (195) contacts the inner wall of the connecting groove (196), a No. 1 fluororubber sealing ring is provided between the connecting tube (192) and the injection tube (191), a No. 2 fluororubber sealing ring is provided between the extrusion frame (193) and the injection tube (191), and the extrusion frame (193) contacts the inner wall of the injection tube (191).

7. The injection mold for facilitating heat dissipation according to claim 6, characterized in that: The demoulding assembly comprises a demoulding rod (201), a demoulding frame (202), a return spring (203), a demoulding disc (204) and a semicircular block (205); the demoulding rod (201) is fixedly mounted on the right side of the lower mold (9); the demoulding frame (202) is slidably mounted on the circumferential surface of the demoulding rod (201); the return spring (203) is arranged between the demoulding frame (202) and the lower mold (9); the demoulding disc (204) is fixedly mounted on the right side of the demoulding rod (201); and the semicircular block (205) is fixedly mounted on the left side of the demoulding disc (204).

8. The injection mold for facilitating heat dissipation according to claim 7, characterized in that: The demoulding frame (202) is in contact with the semicircular block (205), the demoulding frame (202) passes through the right side of the lower mold (9), a No. 3 fluororubber sealing ring is provided between the demoulding frame (202) and the lower mold (9), and the right side of the demoulding frame (202) is provided as an inclined surface.

9. A method for using an injection mold that facilitates heat dissipation, using the injection mold that facilitates heat dissipation according to claim 8, characterized in that: The following steps are involved: Step 1: The servo motor (10) rotates in the reverse direction to drive the screw rod (11) to rotate in the reverse direction, and the screw rod (11) rotates in the reverse direction to drive the scraper (12) to move backward and reset, and the scraper (12) moves backward and resets to contact the protection plate (15) and squeeze the protection plate (15); Step 2: The protection plate (15) is pressed by the scraper (12) to move toward the support frame (2) to reset. The protection plate (15) moves toward the support frame (2) so that the protection hole (16) is aligned with the switch (17). The protection hole (16) is aligned with the switch (17) so that the protection plate (15) releases the limit on the switch (17); Step 3: After the limit of the switch (17) is released, the switch (17) is manually pressed to drive the output end of the hydraulic device (3) to move downward, the output end of the hydraulic device (3) moves downward to drive the connecting plate (4) to move downward, the connecting plate (4) moves downward to drive the upper mold (5) to move downward, the upper mold (5) moves downward to contact with the lower mold (9) and completes the mold closing; Step 4: After the upper mold (5) and the lower mold (9) are in contact and the mold is closed, the external injection molding mechanism is started to inject the hot melt plastic into the space between the upper mold (5) and the lower mold (9) through the injection molding tube (191) to perform the injection molding operation.

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