Mold convenient to demold
By designing the upper and lower mold structures and guiding system, the problem of difficult demolding in automated production was solved, achieving an efficient and stable demolding process, reducing equipment costs, simplifying the cleaning process, and improving the performance of the mold.
Patent Information
- Application Number
- CN202520544637.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Existing molds are difficult to demold in automated production, are hard to adapt to automated equipment, and the demolding methods have problems such as high equipment cost, complex structure or poor effect.
A mold structure including an upper mold and a lower mold was designed. Through the cooperation of locking components, lifting arms, abutment plates and demolding guide pillars, the synchronous operation and stable separation of the upper and lower molds are realized. The precision and stability of the demolding process are ensured by the interlocking of guide holes and guide pillars. The injection molding process is optimized by the guide groove and overflow groove.
It achieves efficient and stable demolding of molds and products, reduces equipment costs, simplifies the cleaning process, and improves production efficiency and ease of use.
Smart Images
Figure CN223890393U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a mould convenient to demould. BACKGROUND
[0002] The demoulding mode of the sole mould is various. The ejection demoulding is divided into mechanical ejection and hydraulic ejection, the mechanical ejection is driven by the ejection rod, the ejection plate and other devices of the injection molding machine ejection mechanism to demould fast, but the ejection mark can be left, the hydraulic ejection is powerful, the ejection force is uniform, can control the speed and stroke accurately, is suitable for large complex mould, but the equipment cost is high. The pneumatic demoulding relies on the compressed air into the mould cavity, utilizes the air pressure to make the sole and the mould separate, is favorable to guarantee the sole surface quality, reduces the damage, only needs the stable gas source, and the effect can be poor for the complex shape sole. With the advancement of automation process, the requirement of the automatic equipment to the mould is higher and higher, the existing mould is difficult to adapt to the automatic equipment, and the structure demoulding is also difficult, which is not favorable to improve the production and processing efficiency. CONTENT OF UTILITY MODEL
[0003] In view of the deficiency of prior art, the utility model provides a mould convenient to demould, its simple structure, reasonable layout can realize the synchronous operation of up and down grounding switch, has good use effect.
[0004] In order to realize the above-mentioned purpose, the utility model provides a mould convenient to demould, including upper die and lower die, the upper die and lower die are formed with forming cavity between, the locking assembly for locking the upper die and lower die is arranged between the upper die and lower die, the lifting arm for cooperation equipment is arranged on the upper die side wall, the upper die is provided with cooperation groove, the sliding setting is arranged in the cooperation groove The abutment plate is provided with the abutment flange for being abutted with the equipment and forming the relative displacement of abutment plate and upper die on both sides of abutment plate, the abutment flange is exposed outside the cooperation groove setting, the demoulding guide column is extended to the forming cavity in the abutment plate, the spring is further abutted between the abutment plate and cooperation groove, the upper die is further provided with the limiting plate, the limiting plate is arranged on the cooperation groove, the guide hole and guide stay are arranged between the limiting plate and abutment plate, the guide hole and guide stay are inserted and are matched, the limiting plate is provided with the injection port for injecting the forming raw material, and the injection port is communicated with the forming cavity.
[0005] The beneficial effect of the arrangement is that after the injection molding process is completed, the device acts on the lifting arm of the upper mold side wall. With the application of the lifting force, the upper mold is smoothly lifted upward and gradually separated from the lower mold. At the same time, the abutting flanges on both sides of the abutting plate are abutted by the device, so that the abutting plate moves relative to the upper mold. The demolding guide pillars extending from the abutting plate abut against the molded product as the abutting plate advances. As the abutting plate continues to advance, the demolding guide pillars gradually increase the extrusion force on the molded product, stably extruding the product from the molding cavity. The insertion of the guide hole and the guide column ensures that the abutting plate always maintains accurate direction during movement, avoids deviation, and ensures that the demolding guide pillars can act vertically and effectively on the molded product, finally smoothly completing the rapid demolding and efficiently and stably realizing the separation of the product and the mold.
[0006] As a further arrangement of the utility model, the locking assembly comprises a lock catch and a clamping block, the lock catch is swingably arranged on the outer wall of the upper mold, the lock catch is arranged below the lifting arm, and the lock catch is further provided with an abutting arm for cooperating with the device.
[0007] The beneficial effect of the arrangement is that, due to the arrangement of the lock catch below the lifting arm, when the device starts demolding, the device first contacts the abutting arm on the lock catch, so that the lock catch swings, thereby making the lock catch disengage from the clamping block, realizing the unlocking of the upper and lower molds, and further abutting on the lifting arm to lift and separate. This structure is simple and has good use reliability.
[0008] As a further arrangement of the utility model, the guide is arranged on the limiting plate, the guide hole is arranged on the abutting plate, the material injection port is arranged on the guide, the guide is hollow and forms a material injection channel, and the upper mold cooperation groove is provided with a material receiving hole at a position corresponding to the material injection channel.
[0009] The beneficial effect of the arrangement is that, by arranging the guide column on the limiting plate and the guide hole on the abutting plate, the arrangement optimizes the close cooperation between the guide column and the guide hole during the movement of the abutting plate, more accurately guides the movement track of the abutting plate, avoids shaking or deviation of the abutting plate during demolding, and greatly improves the stability of demolding. The material injection port is arranged on the hollow guide column, and the guide column internally forms a material injection channel, and the upper mold cooperation groove is provided with a material receiving hole at a corresponding position. This design enables the molding material to be accurately and efficiently injected into the molding cavity through the material injection channel, reduces the risk of material waste and leakage, and comprehensively ensures the rationality and stability of the mold structure, improving the overall use performance.
[0010] As a further arrangement of the utility model, the limiting plate is provided with a material guide groove around the material injection port, and the material guide groove is further extended with a material overflow groove on both sides.
[0011] The beneficial effect of the arrangement is that when the molding raw material is injected from the injection port, the material guide groove can effectively guide the raw material to uniformly and quickly spread to the molding cavity, ensuring efficient and comprehensive injection molding process, avoiding local material shortage phenomenon, and greatly facilitating the injection molding operation. The overflow groove extending from both sides of the material guide groove shows its advantages after the injection molding is completed. The excess overflow material will flow into the overflow groove, and after molding, only the remaining material in the overflow groove needs to be processed to easily remove the excess part, simplifying the subsequent cleaning process, saving time and labor cost, and improving the convenience and practicality of the mold use in all aspects. BRIEF DESCRIPTION OF DRAWINGS
[0012] Fig. 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;
[0013] Fig. 2 It is a schematic diagram of the explosion structure of an embodiment of the utility model. DETAILED DESCRIPTION
[0014] The utility model provides a kind of embodiment of the mold of facilitating stripping, such as Figs. 1-2As shown, including the upper die 2 and lower die 1, the upper die 2 and lower die 1 between the forming cavity is formed, the upper die 2 and lower die 1 between the locking assembly for locking the upper die 2 and lower die 1, the upper die 2 side wall is provided with a lifting arm 21 for matching equipment, the upper die 2 is provided with a matching groove 23, the matching groove 23 is provided with a sliding contact plate 3, the contact plate 3 is formed on both sides of the contact flange 31 for being contacted with the equipment to form the relative displacement of the contact plate 3 and the upper die 2, the contact flange 31 is exposed outside the matching groove 23, the contact plate 3 extends into the forming cavity with the demolding guide column 33, the contact plate 3 and the matching groove 23 are further contacted with the spring 24, the upper die 2 is further matched with the limiting plate 4, the limiting plate 4 is provided on the matching groove 23, the limiting plate 4 and the contact plate 3 are provided with the guide hole 32 and the guide post 43, the guide hole 32 and the guide post 43 are inserted and matched, the limiting plate 4 is provided with a material injection port for injecting the forming raw material, and the material injection port is communicated with the forming cavity. The beneficial effects of such arrangement are: after the completion of the injection molding process, the equipment acts on the lifting arm 21 of the side wall of the upper die 2. With the application of lifting force, the upper die 2 is smoothly lifted upward and gradually separated from the lower die 1. At the same time, the contact flange 31 on both sides of the contact plate 3 is contacted by the equipment, so that the contact plate 3 and the upper die 2 move relatively. The demolding guide column 33 extending out of the contact plate 3 advances along with the contact plate 3 and abuts against the molded product. With the continuous advance of the contact plate 3, the demolding guide column 33 gradually increases the extrusion force on the molded product, and the product is steadily extruded out of the forming cavity. The insertion and matching of the guide hole 32 and the guide post make the contact plate 3 always keep accurate direction during movement, avoid deviation, so as to ensure that the demolding guide column 33 can act on the molded product vertically and effectively, and finally smoothly complete the rapid demolding, and efficiently and stably realize the separation of the product and the mold.
[0015] As a further arrangement of the present embodiment, the locking assembly comprises a lock 22 and a clamping block 11, the lock 22 is swingably arranged on the outer wall of the upper die 2, the lock 22 is arranged below the lifting arm 21, and the lock 22 is further provided with a contact arm for matching the equipment. The beneficial effects of such arrangement are: due to the arrangement of the lock 22 below the lifting arm 21, when the equipment starts demolding, the equipment first contacts the contact arm on the lock 22, so that the lock 22 swings, thereby making the lock 22 separate from the clamping block 11, realizing the unlocking of the upper and lower dies 1, and then being contacted on the lifting arm 21, thereby lifting and separating. This structure is simple and has good use reliability.
[0016] As a further feature of this embodiment, the guide post 43 is disposed on the limiting plate 4, the guide hole 32 is disposed on the abutment plate 3, and the injection port is disposed on the guide post 43. The guide post 43 is hollow and forms an injection channel. A receiving hole is provided in the upper mold 2 mating groove 23 at the position corresponding to the injection channel. The beneficial effects of this configuration are: with the guide post disposed on the limiting plate 4 and the guide hole 32 opened on the abutment plate 3, this layout optimization allows the guide post and the guide hole 32 to fit tightly when the abutment plate 3 moves, which can more accurately guide the movement trajectory of the abutment plate 3 and avoid shaking or deviation during demolding, greatly improving the stability of demolding. The injection port is disposed on the hollow guide post, and an injection channel is formed inside the guide post. A receiving hole is provided at the corresponding position in the upper mold 2 mating groove 23. This design allows the molding material to be injected into the molding cavity accurately and efficiently through the injection channel, reducing material waste and leakage risks, comprehensively ensuring the rationality and stability of the mold structure, and improving the overall performance.
[0017] As a further feature of this embodiment, a guide groove 41 is provided on the limiting plate 4 around the injection port, and overflow grooves 42 extend from both sides of the guide groove 41. The beneficial effects of this design are: when the molding material is injected from the injection port, the guide groove 41 effectively guides the material to diffuse evenly and quickly into the molding cavity, ensuring efficient and comprehensive injection molding, avoiding localized material shortages, and greatly facilitating injection molding operations. The overflow grooves 42 extending from both sides of the guide groove 41 show their advantages after injection molding. Excess material overflows into the overflow grooves 42, and after molding, only the remaining material in the overflow grooves 42 needs to be processed to easily remove the excess, simplifying the subsequent cleaning process, saving time and labor costs, and comprehensively improving the convenience and practicality of mold use.
[0018] The above examples are merely one preferred embodiment of this utility model. Ordinary variations and substitutions made by those skilled in the art within the scope of this utility model's technical solution are all included within the protection scope of this utility model.
Claims
1. A mold for easy demolding, comprising an upper mold and a lower mold, wherein a molding cavity is formed between the upper mold and the lower mold, characterized in that: A locking assembly for locking the upper and lower molds is provided between the upper and lower molds. A lifting arm for cooperating with the equipment is provided on the side wall of the upper mold. The upper mold is provided with a mating groove, and a contact plate is slidably provided in the mating groove. The contact plate has contact flanges on both sides for contacting the equipment and forming relative displacement between the contact plate and the upper mold. The contact flanges are exposed outside the mating groove. A demolding guide post extends from the contact plate into the molding cavity. A spring also abuts between the contact plate and the mating groove. A limiting plate is also provided on the upper mold. The limiting plate is provided on the mating groove. A guide hole and a guide stop are provided between the limiting plate and the contact plate. The guide hole and the guide stop are inserted into each other. The limiting plate has an injection port for injecting molding material. The injection port is connected to the molding cavity.
2. The mold for easy demolding according to claim 1, characterized in that: The locking assembly includes a latch and a locking block. The latch is oscillatingly mounted on the outer wall of the upper mold and is located below the lifting arm. The latch is also provided with an abutment arm for cooperating with the equipment.
3. The mold for easy demolding according to claim 1, characterized in that: The guide post is set on the limiting plate, the guide hole is set on the contact plate, the injection port is set on the guide post, the guide post is hollow and forms an injection channel, and the upper mold mating groove is provided with a receiving hole corresponding to the injection channel position.
4. The mold for easy demolding according to claim 1, characterized in that: The limiting plate is provided with a material guide groove around the injection port, and overflow grooves extend from both sides of the material guide groove.