Foamed polystyrene formed column variable surface structure
By using miniaturized mold core design and locking screw connection, modular processing of mold texture is achieved, solving the problems of high cost and poor flexibility of traditional molds, and improving production efficiency and flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU HUIXUN INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-30
Smart Images

Figure CN224426239U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polystyrene mold technology, specifically to the variable surface structure of polystyrene foam molding columns. Background Technology
[0002] The internal surface structure of polystyrene foam molding mold determines the texture of the plastic column surface. Traditionally, the internal structure texture of the mold is processed by etching. Different texture patterns require etching inside different mold structures, which leads to an increase in overall production costs. Utility Model Content
[0003] The purpose of this invention is to provide a variable surface structure for polystyrene foam molding columns, which only requires processing textures on small, independent mold cores, significantly reducing processing area, material consumption, labor time, and equipment occupation. Compared with etching within the entire large mold core or mold base, which uses expensive mold bases and mold cores as universal substrates, this invention can solve the problems in the prior art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a variable surface structure for a polystyrene foam molding column, comprising a mold base, a mold core, and a mold core. The mold base has a seat cavity inside, the mold core is connected to the mold base through the seat cavity, the mold core has a locking cavity inside, and the mold core is connected to the mold core through the locking cavity. The mold core has a molding cavity inside.
[0005] Through the above technical solution, the mold core is designed as an independent and detachable module. Its internal molding cavity is the final cavity of polystyrene foam molding, which transfers the texture processing from the expensive integral mold to the miniaturized and standardized mold core.
[0006] Preferably, positioning blocks are provided at both ends of the mold core, and the positioning blocks and the mold core are integrally formed.
[0007] Preferably, both ends of the locking cavity are provided with limit correction grooves, and the inside of the limit correction grooves is provided with screw holes, and the positioning block is combined with the limit correction grooves.
[0008] Preferably, the mold core is provided with locking screws at both ends, and the locking screws extend into the limiting and correcting groove through screw holes, wherein the locking screws abut against the surface of the positioning block.
[0009] Preferably, the mold core is provided with locking screws at both ends, and the locking screws extend into the limiting and correcting groove through screw holes, wherein the locking screws abut against the surface of the positioning block.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] 1. This utility model only requires processing textures on small, independent mold cores, which greatly reduces processing area, material consumption, labor time, and equipment occupation. Compared with etching in the entire large mold core or mold base, the expensive mold base and mold core are used as a universal base and can be used permanently without reprocessing or scrapping due to texture changes. The standardization and small size of the mold core make its manufacturing cost significantly lower than the texture modification of the entire mold.
[0012] 2. This utility model allows for the switching of different textured mold cores in a very short time through simple tightening and loosening of the locking screw and changing of the mold core, easily meeting the needs of multi-variety, small-batch orders or frequent product surface effect updates, and significantly improving production flexibility. Attached Figure Description
[0013] Figure 1 This is the overall front view of the present invention;
[0014] Figure 2 This is a schematic diagram of the mold core structure of this utility model.
[0015] In the diagram: 1. Mold base; 2. Mold core; 3. Mold core; 101. Seat cavity; 201. Locking cavity; 202. Locking screw; 203. Limiting and correcting groove; 2011. Positioning hole; 301. Positioning block; 302. Forming cavity. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] To address the issue that traditional methods of etching internal mold textures require different texture patterns to be etched into different mold structures, leading to increased overall production costs; please refer to... Figure 1-2 The present invention provides the following solution:
[0018] refer to Figure 1 The polystyrene foam molding column has a variable surface structure, including a mold base 1, a mold core 2 and a mold core 3. The mold base 1 has a seat cavity 101 inside. The mold core 2 is connected to the mold base 1 through the seat cavity 101. The mold core 2 has a locking cavity 201 inside. The mold core 3 is connected to the mold core 2 through the locking cavity 201. The mold core 3 has a molding cavity 302 inside.
[0019] In this embodiment, the mold core 3 is designed as an independent and detachable module. Its internal molding cavity 302 is the final cavity of polystyrene foam molding. The inner wall surface can be pre-made with the required texture by means of etching, laser processing, inlay, etc. In this way, the texture processing is transferred from the expensive overall mold to the miniaturized and standardized mold core 3, and the texture is completely decoupled from the mold body.
[0020] refer to Figure 2 Both ends of the mold core 3 are provided with positioning blocks 301. The positioning blocks 301 and the mold core 3 are integrally formed. Both ends of the locking cavity 201 are provided with limit correction grooves 203. The inside of the limit correction grooves 203 is provided with screw holes. The positioning blocks 301 and the limit correction grooves 203 are combined. Both ends of the mold core 2 are provided with locking screws 202. The locking screws 202 extend into the inside of the limit correction grooves 203 through the screw holes. The locking screws 202 are attached to the surface of the positioning blocks 301. Positioning holes 2011 are provided around the surface of the mold core 2.
[0021] In this embodiment, when installing the mold core 3, the positioning blocks 301 at both ends slide into the limiting and correcting groove 203. This process forces the mold core 3 to be precisely positioned in the horizontal plane in the X and Y directions and restricts its rotational freedom, ensuring that the molding cavity 302 of the mold core is precisely aligned with the overall flow channel and cooling system of the mold.
[0022] Locking screws 202 are provided at both ends of the mold core 2. The threaded end of the screw is screwed into the screw hole inside the limiting and correcting groove 203. After the locking screw 202 is screwed in, the end of the screw or the pressure block is designed to directly abut and press against the outer end face of the mold core positioning block 301. This pressing force is transmitted to the entire mold core 3 through the positioning block 301, so that it is firmly pressed into the mold core 2 in the Z direction. The set position is usually in contact with the positioning step surface of the locking cavity 201.
[0023] Working principle: Loosen and remove the locking screws 202 at both ends of the mold core 2 to release the clamping force on the positioning block 301. The old mold core 3 can then be smoothly pulled out along the direction of the limiting and correcting groove 203. Align the positioning block 301 of the new mold core 3 with the limiting and correcting groove 203 and push it in along the groove until it reaches the set position (usually with a stop surface). Screw in and tighten the locking screws 202 at both ends to press the ends of the locking screws against the positioning block 301, completing rigid fixation and sealing. The positioning hole 2011 on the surface of the mold core 2 can be used to cooperate with the mold base 1 or other auxiliary tooling to assist in the positioning of the mold core before and after mold core replacement, further improving the overall mold change accuracy and repeatability.
[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A polystyrene foamed formed column variable surface structure characterized by, It includes a mold base (1), a mold core (2) and a mold core (3). The mold base (1) has a seat cavity (101) inside. The mold core (2) is connected to the mold base (1) through the seat cavity (101). The mold core (2) has a locking cavity (201) inside. The mold core (3) is connected to the mold core (2) through the locking cavity (201). The mold core (3) has a forming cavity (302) inside.
2. The polystyrene foamed formed column variable surface structure of claim 1, wherein: Both ends of the mold core (3) are provided with positioning blocks (301), and the positioning blocks (301) and the mold core (3) are configured as an integral molding structure.
3. The polystyrene foamed formed column variable surface structure of claim 2, wherein: Both ends of the locking cavity (201) are provided with limit correction grooves (203), and the inside of the limit correction grooves (203) is provided with screw holes. The positioning block (301) is combined with the limit correction grooves (203).
4. The polystyrene foamed formed column variable surface structure of claim 3, wherein: The mold core (2) is provided with locking screws (202) at both ends. The locking screws (202) extend through the screw holes into the limiting and correcting groove (203). The locking screws (202) are attached to the surface of the positioning block (301).
5. The polystyrene foamed formed column variable surface structure of claim 1, wherein: Positioning holes (2011) are provided around the surface of the mold core (2).