KR-102962760-B1 - Press mold device with built-in heating and cooling channels

Abstract

The present invention discloses a press mold device having heating and cooling channels installed therein. A heating channel is installed along the interior of an upper plate that is raised and lowered by a cylinder, and a molding die is formed in the center of the upper surface of a lower plate supporting the upper plate to accommodate resin molding, and a cooling channel is installed along the interior. By controlling the molding temperature through the heating channel and the cooling channel, which are independent within the upper plate and the lower plate respectively, uniformity of heat distribution can be ensured.

Inventors

• 이상훈

Assignees

• 주식회사 에이이엠모빌리티

Dates

Publication Date

20260512

Application Date

20250718

Claims (5)

1. In a press mold device, A top plate that is raised and lowered by a cylinder, and It includes a lower plate that supports the upper plate and forms a molding die that accommodates resin molding in the central part of the upper surface, and has a cooling channel installed along the interior. The above top plate is, A receiving groove is formed in the center with a certain area, and a heating channel is formed along the inner edge of the receiving groove in which a heating wire is installed, and an insulation plate is inserted and installed in the receiving groove with the same area, and a finishing plate is installed on the upper surface of the insulation plate with the same surface as the upper surface of the top plate. The cooling channel of the lower plate includes a U-shape, a spiral, or a plurality of loop patterns, and cooling water is circulated through the cooling channel by supplying and discharging, thereby controlling the molding temperature through the heating channel and the cooling channel, which are independent within the upper plate and the lower plate respectively, to ensure uniform heat distribution. A positioning means installed on a press bed including a support bar installed on a frame body for positioning the lower plate and capable of supporting the rear surface of the lower plate, and the lower plate further includes a tray including the molding die for maintenance or replacement of the molding die and for easy separation of the molded product from the molding die, and further includes a separation means capable of separating the tray from the lower plate. The above position alignment means is, A drive motor fixedly installed inside the above-mentioned press bed, and A support member connected to and installed on the drive shaft of the above-mentioned drive motor and supported on the above-mentioned press bed, and A camshaft is formed to protrude eccentrically in a circular shape on the upper surface of the support member and is positioned through the cam hole of the press bed, and the lower plate is moved to a fixed position along the X-axis and Y-axis directions according to the eccentric rotation of the camshaft by the operation of the drive motor, and The above separation means is, An inclined block fixedly installed inside the lower plate, the upper surface forming an inclined surface that gradually increases in height toward the center of the lower plate, and A movable block having a slanted lower surface formed to correspond to the above-mentioned slanted surface, and which moves along the above-mentioned slanted surface to advance and ascend while lifting a part of the tray, and A lifting screw shaft extending from the end face of the above-mentioned inclined block and rotatably installed on a fixed body, and A press mold device having a heating and cooling channel installed therein, characterized by including a second connecting bar through which the lifting screw shaft passes, a first connecting bar connected to the second connecting bar and extended upward from the second connecting bar by a certain length, and a rod connected from the moving block and installed to be connected to the first connecting bar, which moves linearly according to the rotation of the lifting screw shaft to advance and move the moving block up and down.
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3. In paragraph 1, A press mold device having a heating and cooling channel installed therein, characterized by having at least two temperature sensors installed on the front and rear surfaces of the upper plate, respectively, and a temperature sensor installed on the receiving groove portion.
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Description

Press mold device with built-in heating and cooling channels The embodiments of the present disclosure relate to a press mold device, and more specifically, to a press mold device having heating and cooling channels installed therein so as to perform heating and cooling functions by installing channels inside the upper and lower plates of the mold. Generally, a press die is a mold installed in a press machine that performs linear reciprocating motion to plastically deform and process various product panels, such as forming, which pressure-forms metal tubular materials into a specific shape, and piercing, which creates holes. As industry develops, the aforementioned press molds are widely used in the molding processes of various materials, such as metal sheets, rubber, and thermoplastic resins. The above press mold generally consists of a fixed lower mold and an upper mold that generates downward pressure and pressure. In particular, in the molding process for thermoplastic resins or composites, mold temperature has a critical impact on the quality of the molded product; therefore, the ability to maintain a constant internal mold temperature and rapidly heat and cool according to the molding cycle is essential. To this end, conventional technology has used methods such as attaching heaters to the exterior or inner walls of the mold, or embedding cooling water pipes in the form of simple straight tubes inside the mold. However, the following limitations exist. In other words, as the location of the heater or the cooling channel is limited to only certain areas, uneven temperature distribution occurs between the center and the periphery of the mold, which causes shrinkage deformation, molding defects, cracking, and poor surface roughness of the product. In addition, externally attached heaters take a long time to heat the entire mold, and cooling also increases the overall molding cycle due to reduced cooling responsiveness. also, External heaters or piping cause problems such as oil leakage, coating damage, and obstruction of worker access, and face significant space constraints during design and manufacturing. Furthermore, conventional mold cores often have a simple block structure that does not consider heat distribution, and since internal flow paths do not extend to the center of the core, only localized cooling effects occur. Therefore, inside the mold There is a growing need for an embedded flow channel mold structure that enables uniform temperature control as heating and cooling fluids pass through the entire mold by designing and embedding a three-dimensional flow channel pattern. FIG. 1 is an overall configuration diagram of a press mold device having heating and cooling channels installed therein according to one embodiment of the present disclosure, and FIG. 2 is a perspective view of an upper plate and a lower plate in a press mold device having heating and cooling channels installed therein according to one embodiment of the present disclosure, and FIG. 3 is an exploded perspective view of the top plate and bottom plate in FIG. 2, and FIG. 4 is an exploded perspective view of the top plate in FIG. 3, and FIG. 5(a) and 5(b) are plan views showing a heating channel of an upper plate and a cooling channel of a lower plate according to one embodiment of the present disclosure, FIG. 6 is a cross-sectional view of line AA in FIG. 2, and FIG. 7 is a perspective view showing the installation of a position alignment means according to another embodiment in a press mold device having heating and cooling channels of the present disclosure, and FIG. 8 is a perspective view of the position alignment means in FIG. 7, and FIG. 9 is a plan view showing the operation of a position alignment means, and FIG. 10 is a cross-sectional view showing a separation means according to another embodiment in a press mold device having heating and cooling channels of the present disclosure, and FIG. 11 is a partial cross-sectional view showing the operation of the separation means in FIG. 10. The embodiments described in this specification and the configurations illustrated in the drawings are merely preferred examples of the disclosed invention, and various modifications that may replace the embodiments and drawings of this specification may exist at the time of filing this application. Identical reference numbers or symbols in each drawing of this specification represent parts or components that perform substantially the same function. The shapes and sizes of the elements in the drawings may be exaggerated for clarity. The terms used herein are for describing embodiments and are not intended to limit or/or restrict the disclosed invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as “comprising” or “having” are intended to indicate the presence of the features, numbers, steps, actions, components, parts, or combinations thereof describe