Curing forming mold for thin-wall glass fiber reinforced phenolic plastic box product
By eliminating the inner mold design and adopting a combined structure of upper mold, middle mold, lower mold and core, the accuracy and appearance problems of thin-walled glass fiber reinforced phenolic plastic box products caused by gaps during the hot molding process are solved, and efficient and stable mass production is achieved.
Patent Information
- Application Number
- CN202422673658.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-01
AI Technical Summary
During the hot compression molding process of existing thin-walled glass fiber reinforced phenolic plastic box product molds, the gap between the inner mold and the middle mold parting surface causes the molten blank to be squeezed out, resulting in unqualified part precision and appearance quality, and posing safety risks. The processing efficiency is low and it is difficult to meet mass production needs.
A curing molding mold for thin-walled glass fiber reinforced phenolic plastic box products is designed. The inner mold is eliminated and a combined structure of upper mold, middle mold, lower mold and core is adopted. Through interference fit and sliding fit, the accuracy and parallelism of the parts are ensured, and the molten blank is prevented from flowing into the gap. Combined with a discharger, efficient molding is achieved.
It improves the service life of the mold and the stability of product quality, ensures the precision and appearance quality of parts, improves processing efficiency and meets the needs of mass production.
Smart Images
Figure CN223442906U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to aviation hot die -pressing processing technical field, concretely relates to a kind of thin-walled glass fiber reinforced phenolic plastic box product solidification forming mould. BACKGROUND
[0002] At present, the original thin-walled glass reinforced phenolic plastic box product solidification mould contains main components such as upper die, middle die, inner die and lower die, the upper die is arranged at the top, the middle die is arranged between the upper die and the lower die, the inner die is arranged between the middle die and the lower die, the middle die and the inner die are designed as split structure, the parting surface of the two due to different machining accuracies, there is a large gap in the parting surface, when the molten blank material is extruded into the gap between the parting surface of the inner die and the middle die during hot die -pressing forming processing, the gap between the parting surface of the inner die and the middle die will have more and more residual material, which causes the precision and appearance quality of the parts produced by the mould to not meet the requirements, and even the mould is damaged, resulting in repair, and because there is overflow in the gap between the parting surface of the inner die and the middle die, the formed parts are prone to dropping during demolding, and the mould is difficult to clean after forming, in addition, when the molten blank material is extruded into the gap between the parting surface of the inner die and the middle die, if there is a crack between the contact surfaces of the inner die and the middle die, there will be a risk of cracking during processing, which affects the product quality and easily causes safety accidents.
[0003] Therefore, when the original mould is used to process thin-walled glass fiber reinforced phenolic plastic box products, the deformation during processing is difficult to control, and the products are often scrapped after processing, so that the production gap is repeatedly made up, the product size and precision control consistency is poor, the product qualified rate is low, and the processing efficiency is low, which cannot meet the normal production and assembly requirements. UTILITY MODEL CONTENTS
[0004] The utility model solves the technical problem: the utility model provides a kind of thin-walled glass fiber reinforced phenolic plastic box product solidification forming mould, to solve the problem that the molten blank material is extruded into the gap between the parting surface of the inner die and the middle die when the existing mould is used to prepare thin-walled glass fiber reinforced phenolic plastic box product, which causes the precision and appearance quality of the parts produced by the mould to not meet the requirements, and even the mould is damaged, resulting in repair.
[0005] The technical scheme of the utility model
[0006] A kind of thin-walled glass fiber reinforced phenolic plastic box product curing forming mould, including upper mould, core, middle mould, guide column, lower mould, lower mould is engaged with guide column, middle mould is set on lower mould, middle mould is engaged with guide column, upper mould is set on middle mould, upper mould bottom extends downwards and forms positioning shaft section, positioning shaft section is engaged with the upper portion of middle mould positioning hole, the middle mould positioning hole is quadrangular hole, the core is quadrangular structure, the core is set in middle mould positioning hole, and is engaged with the gap of middle mould positioning hole, the annular gap between the outer wall of core and the inner wall of middle mould positioning hole, the lower surface of lower mould and upper mould positioning shaft section lower end form the cavity of thin-walled glass fiber reinforced phenolic plastic box product, positioning shaft is set at both ends of core, and the core is engaged with upper mould and lower mould by positioning shaft at both ends.
[0007] Further, it further includes unloader, the unloader is circular structure, center sets up square hole, square hole size is same with the size of thin-walled glass fiber reinforced phenolic plastic box product.
[0008] Further, upper mould, core, middle mould, guide column, lower mould are all made of UNIMAX material.
[0009] Further, the parallelism error between upper end surface of upper mould and lower end surface of lower mould is not more than 0.02mm.
[0010] Further, the height of cavity is 12.95 (0, -0.05) mm, which is consistent with the height of the formed thin-walled glass fiber reinforced phenolic plastic box product.
[0011] Further, the parallelism error between upper mould and middle mould, and the parting surface of middle mould and lower mould is not more than 0.03mm.
[0012] Beneficial effects
[0013] The thin-walled glass fiber reinforced phenolic plastic box product curing forming device provided by the utility model has high processing efficiency, stable and reliable quality, and can meet the processing requirements of batch production.
[0014] (1) The utility model improves the design of the original mould, forms the thin-walled glass fiber reinforced phenolic plastic box product by the cooperation of upper mould, middle mould and lower mould, cancels the inner mould design of the original device, and there is no gap between the inner mould and the middle mould, so that the molten blank material cannot flow to the gap, and the problem of material sticking in the mould cavity is completely solved.
[0015] (2) The molten blank material cannot flow to the gap between the middle mould and the inner mould, the risk of cracking during processing is avoided, the service life is improved, the product quality is guaranteed, the processing efficiency is high, the quality is stable and reliable, and the processing requirements of batch production of the thin-walled glass fiber reinforced phenolic plastic box product can be met. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 Figure 1 is a mold structure schematic diagram of the present application;
[0017] Figure 2 Figure 2 is a discharger structure schematic diagram of the present application;
[0018] 1, upper die, 2, core, 3, middle die, 4, guide pillar, 5, lower die, 6, discharger. DETAILED DESCRIPTION
[0019] The features and illustrative embodiments of various aspects of the present application will be described below in detail. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without some or all of these specific details. The description of the embodiments is merely meant to provide a better understanding of the present application by showing examples of the present application. The present application is in no way limited to any particular set of arrangements and methods presented below, but covers any modifications, replacements and changes of the structure, method and device without departing from the spirit of the present application. In the accompanying drawings and the following description, well-known structures and techniques are not shown to avoid unnecessary obscuring of the present application.
[0020] It should be noted that the features of the embodiments of the present application and the embodiments can be combined with each other without conflict, and each embodiment can be mutually referenced and quoted. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0021] As Figure 1The utility model provides a kind of thin-walled glass fiber reinforced phenolic plastic box product solidification forming mould, including upper mould 1, core 2, middle mould 3, guide pillar 4, lower mould 5, lower mould 5 is interference fit with guide pillar 4, middle mould 3 is set on lower mould 5, middle mould 3 is slidably connected with guide pillar 4, upper mould 1 is set on middle mould 3, upper mould 1 bottom extends and forms positioning shaft section downward, positioning shaft section is slidably connected with the upper portion of the positioning hole of middle mould 3, the positioning hole of middle mould 3 is quadrangular hole, core 2 is quadrangular structure, core 2 is set in the positioning hole of middle mould 3, and is gap fit with the positioning hole of middle mould 3, annular gap between the outer wall of core 2 and the inner wall of the positioning hole of middle mould 3, the lower end surface of upper mould 1 positioning shaft section and the upper surface of lower mould 5 form the cavity of thin-walled glass fiber reinforced phenolic plastic box product preparation, the gap between the upper surface of core 2 and the lower end surface of upper mould 1 positioning shaft section, the annular gap between the outer wall of core 2 and the inner wall of the positioning hole of middle mould 3 is the thickness of the box body of plastic box product after forming, the height between the lower end surface of upper mould 1 positioning shaft section and the upper surface of lower mould 5 is the height of plastic box product after forming, the utility model cancels the inner mould design of original device, there is no gap between inner mould and middle mould, and molten blank material will not flow to the gap, completely solve the problem that mould cavity is easy to hang material, and it is also convenient for the cleaning of parts;Core 2 is provided with positioning shaft at both ends, and core 2 is slidably connected with upper mould 1 and lower mould 5 through the positioning shaft at both ends.
[0022] The forming mould also comprises a discharger 6, which is a circular structure with a square hole in the center, and the size of the square hole is the same as that of the thin-walled glass fiber reinforced phenolic plastic box product.
[0023] The upper mould 1, the core 2, the middle mould 3, the guide pillar 4 and the lower mould 5 of the forming mould are all made of UNIMAX material, so that the mechanical strength is high and the service life is long.
[0024] In the utility model, the upper end surface of the upper mould 1 is parallel to the lower end surface of the lower mould 5, and the parallelism error is not greater than 0.02 mm.
[0025] In the utility model, the height of the cavity is 12.95 (0, -0.05) mm, which is consistent with the height of the thin-walled glass fiber reinforced phenolic plastic box product after forming, so as to ensure that the height of the finally formed plastic box product meets the requirements.
[0026] In the utility model, the parallelism error of the upper mould 1 and the middle mould 3, and the parting surface between the middle mould 3 and the lower mould 5 is not greater than 0.03 mm, so that the upper mould 1 and the middle mould 3, and the middle mould 3 and the lower mould 5 are closely combined.
[0027] The use process of the utility model is as follows:
[0028] The guide pillar 4 is assembled with the lower mold 5, the middle mold 3 is installed on the lower mold 5 and is in sliding fit with the guide pillar 4, then the core 2 is positioned in the positioning hole of the middle mold 3, the positioning shaft at the lower end of the core 2 is in fit with the positioning hole on the lower mold 5, then the glass fiber reinforced phenolic plastic blank is put in the gap between the outer wall of the core 2 and the inner wall of the positioning hole of the middle mold 3 and on the surface of the core 2, finally the upper mold 1 is put, and hot molding is carried out on the vulcanizing machine.
[0029] After the solidification and molding are finished under the action of certain temperature, time and pressure, the mold is opened, the opening sequence is opposite to the installation sequence: first the upper mold 1 is opened, then the middle mold 3 is opened, the product and the core 2 are taken out together, the product and the core 2 are separated on the molding machine after the product and the core 2 are assembled with the stripper 6, and the whole mold installation and dismounting process is finished, and a thin-walled glass fiber reinforced phenolic plastic box product is obtained.
[0030] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered in the protection scope of the present application.
Claims
1. A thin-walled glass fiber reinforced phenolic plastic box product curing molding die, characterized in that: It includes an upper mold, a core, a middle mold, a guide column, and a lower mold. The lower mold and the guide column are interference fit. The middle mold is arranged on the lower mold, and the middle mold and the guide column are slidingly fitted. The upper mold is arranged on the middle mold. The bottom of the upper mold extends downward to form a positioning shaft section. The positioning shaft section is slidingly fitted with the upper part of the middle mold positioning hole. The middle mold positioning hole is a square hole, and the core is a square structure. The core is arranged in the middle mold positioning hole and has a gap fit with the middle mold positioning hole. The outer wall of the core and the inner wall of the middle mold positioning hole, the annular gap between the lower end face of the upper mold positioning shaft section, and the upper surface of the lower mold form a cavity for preparing thin-walled glass fiber reinforced phenolic plastic box products. Positioning shafts are arranged at both ends of the core, and the core slides with the upper mold and the lower mold through the positioning shafts at both ends.
2. The thin-walled glass fiber reinforced phenolic plastic box product curing molding mold according to claim 1, characterized in that: The utility model also comprises a discharger, which is a circular structure with a square hole arranged in the center. The size of the square hole is the same as that of the thin-walled glass fiber reinforced phenolic plastic box product.
3. The thin-walled glass fiber reinforced phenolic plastic box product curing molding mold according to claim 1, characterized in that: The upper mold, core, middle mold, guide pin and lower mold are all made of UNIMAX material.
4. The thin-walled glass fiber reinforced phenolic plastic box product curing molding die according to claim 1, characterized in that: The upper end surface of the upper die and the lower end surface of the lower die remain parallel, and the parallelism error is no more than 0.02mm.
5. The thin-walled glass fiber reinforced phenolic plastic box product curing molding die according to claim 1, characterized in that: The cavity height is 12.95 (0, -0.05) mm, which is consistent with the height of the thin-walled glass fiber reinforced phenolic plastic box product after molding.
6. The thin-walled glass fiber reinforced phenolic plastic box product curing molding die according to claim 1, characterized in that: The parallelism error between the upper die and the middle die, and between the middle die and the lower die parting surfaces shall not exceed 0.03mm.