An injection mold for high drop panel products
By designing injection molds for high-drop panel products, combining separation demolding seats and high-pressure gas-assisted separation technology, the existing mold structure is solved, with high maintenance costs and product surface scratches, and an efficient and high-quality injection molding process is achieved.
Patent Information
- Application Number
- CN202411604339.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2044-11-12
AI Technical Summary
Existing injection molds for high-drop panel products are complex in the mold release process and have high maintenance costs. When the product is not completely cooled, the mold release may cause mechanical scratches on the surface, affecting the aesthetics.
An injection mold is designed, including an injection mold seat, a molding module, a separation release seat, a separation auxiliary assembly and a release assembly. Through the coordination of the separation release seat and the separation auxiliary assembly, auxiliary separation of the product and the side wall of the forming cavity is achieved, avoiding damage to the product by the demolding force, and assisting the separation of the product and pushing the product out of the forming cavity through high-pressure gas.
It improves the injection molding efficiency and quality of high-drop panel products, reduces the structural complexity and maintenance costs of the mold, avoids scratches on the surface of the product, and improves the aesthetics of the product.
Smart Images

Figure CN119116296B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of injection molds, in particular to an injection mold for high-drop panel products. Background Art
[0002] Injection molds are tools for producing plastic products and also tools for giving plastic products complete structures and precise dimensions. High-drop panel products mainly include barrel-shaped smooth protective shell structures with high drop, such as panel shells of small and medium-sized household appliances;
[0003] The prior art patent CN114932658B discloses an injection mold for high-drop products, including a fixed mold, a movable mold and a demolding mechanism. By sequentially separating the core mold from the side wall of the molded cavity in sections, the demolding area of the core mold from the cavity during the demolding process can be reduced, thereby effectively reducing the demolding force on the barrel body when the core mold is demolded, so as to improve the demolding quality of the barrel body. When in use, it controls the mold separation in sections so that no large demolding force is generated between it and the product, and performs demolding operations. However, when this method is used, the structural features are relatively complex, and the cost and difficulty of later maintenance are high. In addition, the panel product surface has high quality requirements. If the demolding operation is started before the product is completely cooled, mechanical scratches may be generated on the product surface, affecting the appearance and inconvenience in use. Summary of the invention
[0004] The object of the present invention is to provide an injection mold for high-drop panel products to solve the problems raised in the above background technology.
[0005] To achieve the above object, the present invention provides the following technical solution: an injection mold for high drop panel products, the injection mold comprising:
[0006] An injection mold base and a molding module, wherein a separation demoulding base is fixedly inserted at the center of one side of the injection mold base, a matching ring is provided at one side of the separation demoulding base, an assembly cavity groove is provided at the center of the molding module, an annular matching groove is provided at one side of the injection mold base located at the assembly cavity groove, the molding module is fixed at one side of the injection mold base, the matching ring is plugged into the annular matching groove, a mold core is fixedly provided at the center of the separation demoulding base, the mold core is plugged into the center of the assembly cavity groove of the molding module, and a molding cavity is sandwiched between the mold core and the molding module;
[0007] A separation auxiliary component, wherein the separation auxiliary component is arranged in the separation demoulding seat through a movable control component, the separation component comprises a demoulding bottom ring and two functional rings, a control cavity is provided in the separation demoulding seat, the two functional rings are horizontally arranged in the control cavity, an annular lifting groove is provided in the center of the matching ring connected to the control cavity, the upper ends of the two functional rings respectively penetrate the annular lifting groove and abut against one side of the annular matching groove, the demoulding bottom ring is located between the two functional rings in the separation demoulding seat, and the movable control component comprises an movable control cylinder and two piston rods;
[0008] The demoulding assembly is arranged in the control cavity of the separated demoulding seat. The demoulding assembly comprises a plurality of pull-down guide rods, and the demoulding bottom ring is located between two functional rings in the separated demoulding seat.
[0009] Preferably, the two functional rings are in the same horizontal plane, the two functional rings are concentric, one side of the demolding bottom ring is inserted into the center of the annular lifting groove, a plurality of strip guide grooves are symmetrically opened at the lower end of the demolding bottom ring, a plurality of synchronous connecting rods are horizontally symmetrically arranged between the two functional rings, the plurality of synchronous connecting rods are respectively movable and pass through the plurality of strip guide grooves, and the upper end horizontal height of the demolding bottom ring is lower than the upper end horizontal height of the mating ring.
[0010] Preferably, a diverter air groove is provided on one side of the functional ring that fits with the side wall of the annular matching groove, a plurality of separation air holes are provided in the diverter air groove that is connected to the annular matching groove, a plurality of pipe grooves are provided at the lower end of the diverter air groove that passes through the lower end of the functional ring, a plurality of injection air pipes are vertically symmetrically provided in the separation demoulding seat below the functional ring, and the upper ends of the plurality of injection air pipes are movably inserted in the plurality of pipe grooves respectively.
[0011] Preferably, a plurality of connecting air grooves are provided in the demolding bottom ring at the center above the strip guide groove, and a plurality of connecting air grooves are vertically penetrated through the upper ends of the plurality of connecting air grooves. When the upper ends of the two functional rings abut against one side of the annular matching groove, an annular auxiliary groove is sandwiched between the upper end of the demolding bottom ring and the side walls of the two functional rings, and the annular auxiliary groove is connected with the molding cavity correspondingly, and a plurality of demolding air grooves are respectively connected with the annular auxiliary grooves.
[0012] Preferably, a conical groove is provided on one side of the demoulding air groove connected to the annular auxiliary groove, a conical sealing plate is horizontally inserted in the conical groove, and the upper end of the conical sealing plate is flush with the upper end of the demoulding bottom ring.
[0013] Preferably, two supporting sleeves are symmetrically provided on one side of the demolding air groove close to the conical sealing plate, a pull-down guide rod is vertically provided at the center of one side of the demolding air groove located on the conical sealing plate, the pull-down guide rod vertically moves through the two supporting sleeves, the pull-down guide rod is located between the two supporting sleeves and a pull-back plate is horizontally provided, and the pull-down guide rod is located between the pull-back plate and the supporting sleeve close to the conical sealing plate and a reset spring is sleeved thereon.
[0014] Preferably, the cross-section of the demolding bottom ring is an inverted "T"-shaped structure, and the cross-section of the functional ring is a "Z"-shaped structure. A number of coupling grooves are vertically opened on the upper ends of the step surfaces on both sides of the demolding bottom ring, and a transfer tube is vertically provided on the side of the functional ring close to the second docking hole. The lower ends of the several transfer tubes are movably inserted into the several coupling grooves, and the several transfer tubes are respectively connected to the diversion air grooves.
[0015] Preferably, a sealing ring is provided at the upper end of the coupling groove, and a first docking hole is opened on the side of the coupling groove close to the connecting air groove. Second docking holes are opened on one side of several coupling grooves and connected to the connecting air grooves respectively, and when the functional ring and the coupling tube are lowered to the maximum extent, the first docking hole is connected to the second docking hole.
[0016] Preferably, the movable control cylinder is vertically arranged in the center of the control cavity of the separation demolding seat, and piston cylinders are vertically arranged at the upper and lower ends of the center of the control cavity. The two piston cylinders are movably inserted into the two sides of the movable control cylinder respectively, and a plurality of control connecting rods are symmetrically arranged on the inner circumference of the movable control cylinder and the functional ring on one side. A partition plate is horizontally arranged in the middle of the movable control cylinder, and piston rods are respectively arranged at the upper and lower ends of the partition plate, and the two piston rods are movably inserted into the two piston cylinders respectively.
[0017] Preferably, a first transfer groove is horizontally opened in the separation and demoulding seat on one side of the injection air pipe, a second transfer groove and a third transfer groove are successively opened in the separation and demoulding seat on one side close to the movable control cylinder, the lower ends of the first transfer groove, the second transfer groove and the third transfer groove all pass through the separation and demoulding seat and are connected to a connecting plug, a transfer groove is opened on one side of the injection molding seat close to the connecting plug, one side of the three connecting plugs are respectively sealed and plugged into the transfer grooves, and one side of the transfer grooves passes through the injection molding seat and is provided with an air inlet groove.
[0018] Compared with the prior art, the present invention has the following beneficial effects:
[0019] By embedding a separation demoulding seat in the combined assembly position of the injection mold base and the molding module, after the product is injection molded in the molding cavity, the separation auxiliary component and the movable control component can be used to assist in the separation of the panel product from the inner side wall of the molding cavity, thereby avoiding possible damage caused by the dynamic separation of the mold and the mold, improving the surface quality of the product, and then, with the assistance of the demoulding component, the product after side separation can be separated from the molding cavity, thereby improving the injection molding efficiency and quality of high-drop panel products. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the structure of the present invention;
[0021] Figure 2 It is a schematic side cross-sectional view of the structure of the present invention;
[0022] Figure 3 For the present invention Figure 2 Schematic diagram of part A;
[0023] Figure 4 For the present invention Figure 3 Schematic diagram of part B;
[0024] Figure 5 For the present invention Figure 2 Schematic diagram of the C part;
[0025] Figure 6 It is a schematic diagram of the installation structure of the injection mold base and the separation demoulding base of the present invention;
[0026] Figure 7 It is a schematic diagram of the structure of two functional rings of the present invention;
[0027] Figure 8 It is a schematic diagram of the connection structure of two functional rings of the present invention;
[0028] Fig. 9 This is a schematic diagram of the structure of the molding module of the present invention;
[0029] Fig.10 It is a schematic diagram of the position structure of the demoulding bottom ring of the present invention.
[0030] In the figure: injection molding die base 1, molding module 2, mold core 3, molding cavity 4, separation demoulding seat 5, matching ring 6, annular matching groove 7, demoulding bottom ring 8, functional ring 9, strip guide groove 10, synchronous connecting rod 11, diverter air groove 12, pipe groove 13, injection air pipe 14, separation air hole 15, first transfer groove 16, connecting air groove 17, demoulding air groove 18, pull-down guide rod 19, conical sealing plate 20, reset spring 21, engaging groove 22, transfer tube 23, first docking hole 24, second docking hole 25, movable control cylinder 26, control connecting rod 27, piston cylinder 28, piston rod 29, second transfer groove 30, third transfer groove 31, connecting hose 32, transfer groove 33, connecting plug 34, air inlet groove 35. DETAILED DESCRIPTION
[0031] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit 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.
[0032] See also Figure 1-Figure 10 , the present invention provides the following technical solutions:
[0033] Embodiment 1: An injection mold for high-drop panel products, including an injection mold base 1 and a molding module 2. A separation demolding seat 5 is fixedly inserted in the center of one side of the injection mold base 1, and a matching ring 6 is provided on one side of the separation demolding seat 5. An assembly cavity is opened in the center of the molding module 2. The injection mold base 1 is located on one side of the assembly cavity and is provided with an annular matching groove 7. The molding module 2 is fixedly arranged on one side of the injection mold base 1, and the matching ring 6 is inserted in the annular matching groove 7. A mold core 3 is fixedly provided in the center of the separation demolding seat 5. The mold core 3 is inserted in the center of the assembly cavity of the molding module 2, and a molding cavity 4 is sandwiched between the mold core 3 and the molding module 2. When performing injection molding of barreled panel products, the injection mold base 1 is fixedly connected to the molding module 2. The molding module 2 can be a high-precision combined structure or an integrated structure to avoid unnecessary marks on the surface. When performing injection molding, the movable mold and the injection port are moved to one side of the molding module 2 and are fitted and sealed. At this time, the hot-melt plastic material is injected into the molding cavity 4 to perform the molding operation.
[0034] After the injection molded part is basically solidified in the molding cavity 4, a separation auxiliary component is set to separate the junction between the product and the mold. The separation auxiliary component is set in the separation demoulding seat 5 through a movable control component. The separation component includes a demoulding bottom ring 8 and two functional rings 9. A control cavity is opened in the separation demoulding seat 5. The two functional rings 9 are horizontally arranged in the control cavity. The center of the matching ring 6 is connected to the control cavity and an annular lifting groove is opened. The upper ends of the two functional rings 9 respectively penetrate the annular lifting grooves and abut against one side of the annular matching groove 7. The demoulding bottom ring 8 is located between the two functional rings 9 in the separation demoulding seat 5. The movable control component includes a movable control cylinder 26 and two piston rods 29. The two functional rings 9 are in the same horizontal plane and are concentric. The demoulding bottom ring 8 One side is inserted into the center of the annular lifting groove, and a plurality of strip guide grooves 10 are symmetrically opened at the lower end of the demoulding bottom ring 8. A plurality of synchronous connecting rods 11 are horizontally symmetrically arranged between the two functional rings 9. The plurality of synchronous connecting rods 11 are respectively movable and penetrate the plurality of strip guide grooves 10, and the upper end horizontal height of the demoulding bottom ring 8 is lower than the upper end horizontal height of the matching ring 6. When the upper ends of the two functional rings 9 are in contact with one side of the annular matching groove 7, an annular auxiliary groove is sandwiched between the upper end of the demoulding bottom ring 8 and the side walls of the two functional rings 9. The annular auxiliary groove is correspondingly connected to the molding cavity 4. When the product is molded in the molding cavity 4, the lowest part of the product is placed in the annular auxiliary groove. At this time, the two functional rings 9 descend, and the part of the product placed in the annular auxiliary groove is connected to the annular matching groove 7.
[0035] A diverter gas groove 12 is provided on one side of the functional ring 9 that is in contact with the side wall of the annular matching groove 7, and a plurality of separation air holes 15 are provided in the diverter gas groove 12 that is connected to the annular matching groove 7. A plurality of pipe grooves 13 are provided at the lower end of the diverter gas groove 12 that passes through the lower end of the functional ring 9, and a plurality of injection air pipes 14 are vertically symmetrically provided in the separation demoulding seat 5 below the functional ring 9, and the upper ends of the plurality of injection air pipes 14 are movably plugged into the plurality of pipe grooves 13 respectively. When the injection air pipe 14 delivers high-pressure gas into the pipe groove 13, the high-pressure gas enters the diverter gas groove 12 and is then blown toward the annular matching groove 7 from the plurality of separation air holes 15. At this time, the contact side of the product in the molding cavity 4 with the molding module 2 and the mold core 3 will be injected with high-pressure gas through the annular matching groove 7, and the airflow-assisted separation is performed on the combination position of the product and the two, which will not cause scratches on the product surface and can further accelerate the cooling and molding of the product.
[0036] A demoulding assembly is provided to facilitate the product formed in the molding cavity 4 to be separated from the molding cavity 4. The demoulding assembly is provided in the control cavity of the separating demoulding seat 5. The demoulding assembly includes a plurality of pull-down guide rods 19. The demoulding bottom ring 8 is located between the two functional rings 9 in the separating demoulding seat 5. A plurality of connecting air grooves 17 are provided in the center above the strip guide groove 10 in the demoulding bottom ring 8. The upper ends of the plurality of connecting air grooves 17 are vertically penetrated with demoulding air grooves 18. The plurality of demoulding air grooves 18 are respectively connected with the annular auxiliary grooves. A conical groove is provided on one side of the demoulding air groove 18 connected with the annular auxiliary groove. A conical sealing plate 20 is horizontally inserted in the conical groove, and the upper end of the conical sealing plate 20 is flush with the upper end of the demoulding bottom ring 8. Two supporting sleeves are symmetrically provided on one side of the demoulding air groove 18 close to the conical sealing plate 20. A pull-down guide rod 19 is vertically provided at the center of one side of the demoulding air groove 18 of the conical sealing plate 20. The pull-down guide rod 19 vertically moves through the two supporting sleeves. The pull-down guide rod 19 is located between the two supporting sleeves and a pull-back plate is horizontally provided. The pull-down guide rod 19 is located between the pull-back plate and the supporting sleeve close to the conical sealing plate 20 and a reset spring 21 is sleeved thereon. When high-pressure gas enters the connection air groove 17, the high-pressure gas pushes the conical sealing plate 20 to lift through the demoulding air groove 18. At this time, the high-pressure gas enters the annular auxiliary groove from the position of the demoulding air groove 18 and enters the molding cavity 4, and slightly lifts the lower part of the product.
[0037] The cross section of the demoulding bottom ring 8 is an inverted "T"-shaped structure, and the cross section of the functional ring 9 is a "Z"-shaped structure. The upper ends of the step surfaces on both sides of the demoulding bottom ring 8 are vertically provided with a plurality of joint grooves 22. The side of the functional ring 9 close to the second docking hole 25 is vertically provided with a transfer tube 23. The lower ends of the plurality of transfer tubes 23 are respectively movably inserted into the plurality of joint grooves 22, and the plurality of transfer tubes 23 are respectively connected with the diversion gas groove 12. The upper ends of the joint grooves 22 are provided with sealing rings. The transfer tube 23 is placed in the joint groove 22 and is connected to the first docking hole 24 on the side close to the connection gas groove 17. The plurality of joint grooves 22 are connected to the first docking hole 24. The second docking hole 25 is opened on the side and connected with the connecting air groove 17, and when the functional ring 9 and the transfer tube 23 are lowered to the maximum extent, the first docking hole 24 is connected with the second docking hole 25. When the functional ring 9 is lowered, the first docking hole 24 of the transfer tube 23 is connected with the second docking hole 25 on one side of the demolding bottom ring 8, and part of the high-pressure gas in the diverter air groove 12 enters the annular matching groove 7, and the other part enters the connecting air groove 17 and the demolding air groove 18. This design structure can first assist in the separation of the product from the side, and then push it from the bottom with high pressure to blow the product away from the molding cavity 4.
[0038] In addition, the shape of the molding cavity 4 can be customized and adjusted according to the combined design of the molding module 2 and the mold core 3. Similarly, if the size of the molding cavity 4 is customized and designed according to the shape of the product, the functional ring 9 and the demoulding bottom ring 8 are also adjusted accordingly.
[0039] In this embodiment, after the product is basically cooled and formed in the molding cavity 4, in order to avoid scratches and damage to the surface of the panel product during demolding and separation, the functional ring 9 is first controlled to descend slightly, and then high-pressure gas is injected into the functional ring 9 through the injection pipe 14. At this time, the high-pressure gas enters the annular matching groove 7 through the separation air hole 15, and then enters the joint surface between the product and the molding module 2 and the mold core 3 from the annular matching groove 7, to assist in separating the product from the two and avoid damage during later demolding. After the product is separated from both sides, the functional ring 9 continues to descend, and the first docking hole 24 of the transfer tube 23 is connected to the connecting air groove 17 of the demolding bottom ring 8. At this time, the high-pressure gas is pressurized. After the pressurization, the gas not only enters both sides of the molding cavity 4, but also blows from one side of the demolding bottom ring 8 through a number of demolding air grooves 18, and cooperates with the slight push of the conical sealing plate 20 to separate the product from the demolding bottom ring 8, and then the high-pressure gas blows the product out of the molding cavity 4 to complete the demolding.
[0040] Embodiment 2: On the basis of embodiment 1, the up and down movement of the functional ring 9 is controlled by high-pressure gas, and the movable control cylinder 26 is vertically arranged in the center of the control cavity of the separation demoulding seat 5, and piston cylinders 28 are vertically arranged at the upper and lower ends of the center of the control cavity, and the two piston cylinders 28 are respectively movably plugged into the two sides of the movable control cylinder 26, and the movable control cylinder 26 and the inner circumference of the functional ring 9 on one side are symmetrically provided with a plurality of control connecting rods 27, and a partition plate is horizontally arranged in the middle of the movable control cylinder 26, and piston rods 29 are respectively arranged at the upper and lower ends of the partition plate, and the two piston rods 29 are respectively movably plugged into the two piston cylinders 28, and when the movable control cylinder 26 moves up and down, the functional ring 9 can be controlled to move up and down;
[0041] A first transfer groove 16 is horizontally opened on one side of the separation demoulding seat 5 located at the injection air pipe 14, and a second transfer groove 30 and a third transfer groove 31 are sequentially opened on one side of the separation demoulding seat 5 near the movable control cylinder 26. The lower ends of the first transfer groove 16, the second transfer groove 30 and the third transfer groove 31 all penetrate the separation demoulding seat 5 and are connected with a connecting plug 34. A transfer groove 33 is opened on one side of the injection mold seat 1 near the connecting plug 34. One side of the three connecting plugs 34 is sealed and plugged into the transfer groove 33 respectively, and one side of the transfer groove 33 penetrates the injection mold seat 1 is provided with an air inlet groove 35, and a connecting hose 32 is inserted at the upper end of the third transfer groove 31. The upper end of the connecting hose 32 is connected to the piston cylinder 28 above the movable control cylinder 26, and one side of the second transfer groove 30 is connected to the piston cylinder 28 below the movable control cylinder 26. When high-pressure gas is injected into the two piston cylinders 28 respectively, the movable control cylinder 26 can be pushed up and down by the piston rod 29. At this time, the movable control cylinder 26 can control the functional ring 9 to move up and down synchronously through a plurality of control connecting rods 27, so as to realize the side separation and demoulding of the product;
[0042] The high-pressure gas injected into the gas injection pipe 14 and the high-pressure gas injected into the two second transfer tanks 30 can be connected through three pipelines and independently controlled and adjusted.
[0043] 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 for high drop panel products, characterized in that: The injection mold includes: An injection mold base (1) and a molding module (2), wherein a separation demoulding base (5) is fixedly inserted at the center of one side of the injection mold base (1), a matching ring (6) is provided at one side of the separation demoulding base (5), an assembly cavity groove is provided at the center of the molding module (2), an annular matching groove (7) is provided at one side of the injection mold base (1) located at the assembly cavity groove, the molding module (2) is fixedly arranged at one side of the injection mold base (1), the matching ring (6) is inserted into the annular matching groove (7), a mold core (3) is fixedly arranged at the center of the separation demoulding base (5), the mold core (3) is inserted into the center of the assembly cavity groove of the molding module (2), and a molding cavity (4) is sandwiched between the mold core (3) and the molding module (2); A separation auxiliary component, wherein the separation auxiliary component is arranged in the separation demoulding seat (5) through a movable control component, the separation component comprises a demoulding bottom ring (8) and two functional rings (9), a control cavity is provided in the separation demoulding seat (5), the two functional rings (9) are horizontally arranged in the control cavity, an annular lifting groove is provided in the center of the matching ring (6) and connected to the control cavity, the upper ends of the two functional rings (9) respectively penetrate the annular lifting groove and abut against one side of the annular matching groove (7), the demoulding bottom ring (8) is located between the two functional rings (9) in the separation demoulding seat (5), and the movable control component comprises a movable control cylinder (26) and two piston rods (29); A demoulding assembly, wherein the demoulding assembly is arranged in a control cavity of a separating demoulding seat (5), the demoulding assembly comprises a plurality of pull-down guide rods (19), and a demoulding bottom ring (8) is located between two functional rings (9) in the separating demoulding seat (5); The two functional rings (9) are in the same horizontal plane, the two functional rings (9) are concentric, one side of the demoulding bottom ring (8) is plugged into the center of the annular lifting groove, a plurality of strip guide grooves (10) are symmetrically opened at the lower end of the demoulding bottom ring (8), a plurality of synchronous connecting rods (11) are horizontally symmetrically arranged between the two functional rings (9), the plurality of synchronous connecting rods (11) are respectively movable and penetrate the plurality of strip guide grooves (10), and the upper end of the demoulding bottom ring (8) is lower than the upper end of the matching ring (6); A diverter air groove (12) is provided on one side of the functional ring (9) that is in contact with the side wall of the annular matching groove (7); a plurality of separation air holes (15) are provided in the diverter air groove (12) and are connected to the annular matching groove (7); a plurality of pipe grooves (13) are provided at the lower end of the diverter air groove (12) and pass through the lower end of the functional ring (9); a plurality of injection air pipes (14) are vertically symmetrically provided in the separation demoulding seat (5) below the functional ring (9); and the upper ends of the plurality of injection air pipes (14) are movably plugged into the plurality of pipe grooves (13) respectively; A plurality of connecting air grooves (17) are provided in the demoulding bottom ring (8) at the center above the strip guide groove (10), and a demoulding air groove (18) is vertically penetrated through the upper ends of the plurality of connecting air grooves (17). When the upper ends of the two functional rings (9) are in contact with one side of the annular matching groove (7), an annular auxiliary groove is sandwiched between the upper end of the demoulding bottom ring (8) and the side walls of the two functional rings (9), and the annular auxiliary groove is correspondingly connected to the molding cavity (4), and the plurality of demoulding air grooves (18) are respectively connected to the annular auxiliary grooves; A conical groove is provided on one side of the demoulding air groove (18) connected to the annular auxiliary groove, a conical sealing plate (20) is horizontally inserted in the conical groove, and the upper end of the conical sealing plate (20) is flush with the upper end of the demoulding bottom ring (8); The movable control cylinder (26) is vertically arranged at the center of the control cavity of the separation demoulding seat (5), and piston cylinders (28) are vertically arranged at the upper and lower ends of the center of the control cavity. The two piston cylinders (28) are respectively movably plugged into the two sides of the movable control cylinder (26). The movable control cylinder (26) and the functional ring (9) on one side are symmetrically provided with a plurality of control connecting rods (27). A partition plate is horizontally arranged in the middle of the movable control cylinder (26), and piston rods (29) are respectively arranged at the upper and lower ends of the partition plate, and the two piston rods (29) are respectively movably plugged into the two piston cylinders (28).
2. The injection mold for high drop panel products according to claim 1, characterized in that: Two supporting sleeves are symmetrically arranged on one side of the demoulding air groove (18) close to the conical sealing plate (20); a pull-down guide rod (19) is vertically arranged at the center of one side of the demoulding air groove (18) located on the conical sealing plate (20); the pull-down guide rod (19) vertically moves through the two supporting sleeves; a pull-back plate is horizontally arranged between the two supporting sleeves on the pull-down guide rod (19); a return spring (21) is sleeved between the pull-back plate and the supporting sleeve close to the conical sealing plate (20).
3. The injection mold for high drop panel products according to claim 2, characterized in that: The cross section of the demoulding bottom ring (8) is an inverted "T"-shaped structure, and the cross section of the functional ring (9) is a "Z"-shaped structure. The upper ends of the step surfaces on both sides of the demoulding bottom ring (8) are vertically provided with a plurality of joint grooves (22). A side of the functional ring (9) close to the second docking hole (25) is vertically provided with a transfer tube (23). The lower ends of the plurality of transfer tubes (23) are respectively movably inserted into the plurality of joint grooves (22), and the plurality of transfer tubes (23) are respectively connected to the diversion gas grooves (12).
4. The injection mold for high drop panel products according to claim 3, characterized in that: The upper end of each of the joint grooves (22) is provided with a sealing ring, a first docking hole (24) is provided on a side of the transfer tube (23) disposed in the joint groove (22) and close to the air connection groove (17), and a second docking hole (25) is provided on one side of a plurality of joint grooves (22) and connected to the air connection groove (17), and when the functional ring (9) and the transfer tube (23) are lowered to the maximum extent, the first docking hole (24) is connected to the second docking hole (25).
5. The injection mold for high drop panel products according to claim 4, characterized in that: A first transfer groove (16) is horizontally provided in the separation demoulding seat (5) on one side of the injection air pipe (14); a second transfer groove (30) and a third transfer groove (31) are sequentially provided in the separation demoulding seat (5) on one side close to the movable control cylinder (26); the lower ends of the first transfer groove (16), the second transfer groove (30) and the third transfer groove (31) all penetrate the separation demoulding seat (5) and are connected to a connecting plug (34); a transfer groove (33) is provided on one side of the injection mold seat (1) close to the connecting plug (34); one side of the three connecting plugs (34) are respectively sealed and plugged into the transfer grooves (33); and one side of the transfer grooves (33) penetrates the injection mold seat (1) and is provided with an air inlet groove (35).
Citation Information
Patent Citations
Processing equipment for injection mold casting
CN110406061A
An injection mold for products with high drop height
CN114932658A