An integrated indentation molding die machine

Abstract

The utility model discloses an integral type indentation molding mould machine relates to packaging technical field, including frame, and frame is equipped with: the molding platform for supporting and positioning wax board, the engraving component, including the cutter for engraving to wax board, is used for engraving or milling flat to wax board, the gluing component is used for to the wax mould in -pouring liquid photosensitive resin, the compression roller component is used for to the indentation mould base plate of the pressure above the wax mould after pouring, with extruding the liquid photosensitive resin of superfluous, the solidification component is used for making liquid photosensitive resin solidification and forms as indentation mould, the tool changing component is used for replacing different cutters and realizes the tool setting of cutter, the movement component is used for driving engraving component, the gluing component, the compression roller component and solidification component relative molding platform carry out space three -dimensional motion, and the molding period of short of indentation mould that its manufacture is, and the molding efficiency is high, and the molding cost is low, and the size precision of indentation mould is high, and indentation effect is good.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, and more specifically, to an integrated embossing mold making machine. Background Technology

[0002] Creasing dies are used to press grooves into various packaging materials, such as paper, cardboard, and plastic film, so that the packaging materials can be folded according to the preset fold lines to form packaging boxes, bags, and other packaging.

[0003] The current trend towards diversification, personalization, and customization in packaging has led to a significant increase in small- and medium-batch orders. Existing embossing and molding processes are insufficient to meet the needs of small- and medium-batch packaging production.

[0004] Traditional embossing dies require the fabrication of shaped metal sheets as embossing lines according to design drawings, and then the shaped metal sheets are fixed to non-metallic sheets. This involves processes such as material cutting, forming, and inlaying. The manufacturing process is complex, the production cycle is long, the production speed is slow, and it requires the cooperation of multiple types of personnel and multiple pieces of equipment, resulting in high production costs.

[0005] Existing additive embossing dies utilize the additive manufacturing principle to extrude liquid photosensitive resin onto a substrate through embossing or 3D printing technology, and then use UV light to cure it to achieve rapid film formation. However, the fluidity of the liquid photosensitive resin can cause changes in the dimensions of the embossing die, affecting its dimensional accuracy. Furthermore, the cross-section of the embossed lines formed by extrusion is an irregular arc shape, resulting in poor embossing effect and unsightly creases. This is especially true when manufacturing dual-die embossing with upper and lower concave and convex dies, where accurate alignment of the concave and convex dies is difficult.

[0006] In conclusion, improving the embossing effect of embossing dies and shortening their production cycle and cost are problems that urgently need to be solved by those skilled in the art. Utility Model Content

[0007] In view of this, the purpose of this utility model is to provide an integrated embossing mold making machine, which has a short mold making cycle, low mold making cost, and improves the mold making efficiency and dimensional accuracy of the embossing mold, and has a good embossing effect.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An integrated embossing mold making machine includes a frame, the frame being provided with:

[0010] A molding platform for supporting and positioning wax plates;

[0011] Engraving components, including tools for engraving wax plates, for engraving or milling wax plates;

[0012] The adhesive application component is used to pour liquid photosensitive resin into the wax mold;

[0013] The pressure roller assembly is used to apply pressure to the indentation mold substrate above the cast wax mold to squeeze out excess liquid photosensitive resin;

[0014] Curing components are used to cure liquid photosensitive resin into an indentation mold;

[0015] A tool changing assembly is used to replace different tools and to perform tool setting.

[0016] A motion component is used to drive the engraving component, the adhesive application component, the pressure roller component, and the curing component to perform three-dimensional spatial motion relative to the molding platform.

[0017] Preferably, the molding platform includes a wax plate mounting plate, a wax plate positioning plate for positioning the wax plate, and a base plate positioning member for positioning the indentation mold base plate. The wax plate positioning plate is attached to the outer side of the wax plate, the base plate positioning member is disposed on the outer edge of the wax plate, and the base plate positioning member is detachably connected to the indentation mold base plate.

[0018] Preferably, the pressure roller assembly includes a pressure roller mounting base, a pressure roller is disposed inside the pressure roller mounting base, both ends of the pressure roller are slidably connected to the pressure roller mounting base, the pressure roller mounting base is provided with a pressure adjusting component, the movable end of the pressure adjusting component is connected to the pressure roller, and the pressure adjusting component is used to drive the pressure roller to move up and down in the height direction to adjust the pressure of the pressure roller.

[0019] Preferably, the pressure regulating assembly includes a pressure regulating cylinder, the cylinder body of which is connected to an air source. A control valve for controlling the opening and closing of the air passage and a pressure regulating valve for adjusting the output pressure of the air source and obtaining the real-time cylinder pressure are provided between the pressure regulating cylinder and the air source. The control valve is located between the air source and the pressure regulating valve. The piston rod of the pressure regulating cylinder is connected to the pressure roller so as to adjust the extension and retraction of the piston rod by adjusting the cylinder pressure.

[0020] Preferably, the tool changing assembly includes:

[0021] Tool magazine mounting plate for connection to the frame;

[0022] The tool holder contains a plurality of the aforementioned tools, and the position of the tool holder relative to the tool magazine mounting plate is adjustable;

[0023] The tool change adjustment assembly has its fixed end connected to the tool magazine mounting plate and its movable end connected to the tool holder, so as to drive the tool holder to move and move the tool to be replaced to the tool change position.

[0024] Preferably, the tool changing adjustment assembly includes a tool changing motor, a tool changing lead screw, and a linear guide rail. The output shaft of the tool changing motor is connected to the tool changing lead screw. The tool holder is threadedly connected to the tool changing lead screw via an adjusting block, and the adjusting block is slidably connected to the linear guide rail.

[0025] Preferably, the motion assembly includes an X-axis motion assembly, a Y-axis motion assembly, and a Z-axis motion assembly. The fixed end of the X-axis motion assembly is connected to the frame, and the movable end of the X-axis motion assembly is connected to the molding platform so as to drive the molding platform to move along the X-axis direction.

[0026] The fixed end of the Y-axis motion component is connected to the frame, and the moving end of the Y-axis motion component is connected to the engraving component and the adhesive application component, so as to drive the engraving component and the adhesive application component to move along the Y-axis direction.

[0027] The fixed end of the Z-axis motion component is connected to the moving end of the Y-axis motion component, and the moving end of the Z-axis motion component is connected to the engraving component so as to drive the engraving component to move up and down along the Z-axis direction.

[0028] Preferably, the X-axis motion assembly, the Y-axis motion assembly, and the Z-axis motion assembly are all lead screw guide mechanisms. The lead screw guide mechanism includes a servo motor, a ball screw, and a linear guide. The extension direction of the linear guide is parallel to the axial direction of the ball screw. The output shaft of the servo motor is connected to the ball screw. The ball screw is connected to the actuator through an adjusting sleeve, which is slidably mounted on the linear guide.

[0029] Preferably, the engraving component and the adhesive application component are mounted side-by-side on the headstock mounting plate of the machine head, the headstock mounting plate is connected to the moving end of the Y-axis motion component, and the engraving component is connected to the headstock mounting plate through the Z-axis motion component.

[0030] Preferably, it also includes a dust collection assembly for absorbing wax powder generated during carving. The dust collection assembly includes a dust collection brush disposed on the outside of the cutting tool and a brush motor for driving the dust collection brush to rotate. The dust collection brush is connected to a negative pressure vacuum cleaner for recovering the wax powder.

[0031] The integrated embossing mold making machine provided by this utility model uses a wax mold to constrain liquid photosensitive resin, which not only retains the low cost and high efficiency advantages of rapid additive film making, but also effectively shortens the molding cycle, meets the cost and time requirements of small and medium batch packaging production, eliminates the deformation problem caused by the flow of liquid photosensitive resin, significantly improves the dimensional accuracy of the embossing mold, and makes the embossing cross-sectional shape precise and controllable, meeting the molding needs of complex box-shaped embossing such as concave and convex mold embossing.

[0032] In addition, the above-mentioned molding machine integrates wax model carving, resin casting, rolling and curing film making processes. Multiple processes use the same positioning reference, which reduces multiple positioning errors and further improves the dimensional accuracy of the indentation mold. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0034] Figure 1 A schematic diagram of a specific embodiment of the integrated embossing mold making machine provided by this utility model;

[0035] Figure 2 This is a schematic diagram of the mold-making platform.

[0036] Figure 3 This is a schematic diagram of the machine head structure;

[0037] Figure 4 This is a schematic diagram of the tool changer assembly.

[0038] Figure 5 This is a schematic diagram of the pressure roller assembly.

[0039] Figure 6 This is a schematic diagram of the indentation cross-sectional shape of the punch and die manufactured according to this utility model;

[0040] Figure 7 A schematic diagram of the indentation cross-sectional shape of a punch and dies manufactured using existing additive rapid film fabrication methods.

[0041] Figures 1-7 middle:

[0042] 01-Indentation mold; 02-Indentation mold base plate; 10-Frame; 20-X-axis motion assembly; 30-Molding platform; 301-Wax plate mounting plate; 302-Wax plate; 303-Wax plate positioning plate; 304-Positioning pin; 40-Y-axis motion assembly; 50-Headpiece; 510-Engraving assembly; 511-High-speed spindle; 512-Cutting tool; 520-Glue application assembly; 521-Extruder; 522-Photosensitive resin container; 530-Dust collection assembly; 531-Aspirator Dust brush; 532-Brush motor; 540-Z-axis motion assembly; 60-Pressure roller assembly; 601-Pressure roller mounting base; 602-Pressure regulating guide rail; 603-Pressure roller; 604-Pressure regulating cylinder; 605-Control valve; 606-Pressure regulating valve; 70-Curing assembly; 80-Tool changing assembly; 801-Tool magazine mounting plate; 802-Tool holder; 803-Tool changing motor; 804-Tool changing screw; 805-Linear guide rail; 806-Photoelectric gate; 90-Tool setter. Detailed Implementation

[0043] 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.

[0044] The core of this utility model is to provide an integrated embossing mold making machine, which has a short mold making cycle, low mold making cost, and improves the mold making efficiency and dimensional accuracy of the embossing mold, resulting in a good embossing effect.

[0045] It should be noted that the X-axis direction mentioned in this application refers to the extension direction of the molding machine in the horizontal plane, the Y-axis direction refers to the direction perpendicular to the X-axis direction of the molding machine in the horizontal plane, and the Z-axis direction refers to the vertical direction.

[0046] The integrated embossing mold making machine provided by this utility model includes a frame 10, and the frame 10 is provided with:

[0047] The molding platform 30 is used to support and position the wax plate 302;

[0048] The engraving assembly 510 includes a tool 512 for engraving the wax plate 302, for engraving or milling the wax plate 302;

[0049] The adhesive application component 520 is used to pour liquid photosensitive resin into the wax mold;

[0050] The pressure roller assembly 60 is used to apply pressure to the indentation mold substrate 02 above the cast wax mold to squeeze out excess liquid photosensitive resin;

[0051] Curing component 70 is used to cure liquid photosensitive resin into an indentation mold 01;

[0052] The tool changer assembly 80 is used to change different tools 512 and to perform tool setting of the tools 512;

[0053] The motion component is used to drive the engraving component 510, the glue application component 520, the pressure roller component 60 and the curing component 70 to perform three-dimensional spatial movement relative to the molding platform 30.

[0054] Among them, the molding platform 30 is used to support and position the wax plate 302, providing a processing platform and processing benchmark for the carving of the wax model and the pouring of liquid photosensitive resin. By unifying the processing benchmark, the positioning error caused by multiple positioning is reduced and the positioning process is simplified.

[0055] The wax plate 302 can be placed on the mold platform 30 and positioned on the outer side by the wax plate positioning plate 303, or the wax plate 302 can be provided with positioning holes on the outer edge of the wax plate 302 and inserted into the positioning post of the mold platform 30.

[0056] The size of the molding platform 30 is larger than that of the wax plate 302. The specific size needs to be determined according to the maximum size of the indentation mold 01 designed and manufactured by the molding machine in actual production, so as to ensure that the molding platform 30 can effectively support and position the wax plate 302.

[0057] The engraving component 510 is used to engrave the upper surface of the wax plate 302 to form a wax model, so as to use the wax model as a mold for resin casting, thereby controlling the dimensional accuracy of the cast indentation mold 01.

[0058] The cutting tool 512 of the engraving component 510 includes both an engraving knife for engraving the wax plate 302 and a flat-bottomed knife for milling the previous wax model after the previous indentation mold 01 is made in order to engrave the next wax model. The specific material, structure and size of the cutting tool 512 are determined according to the engraving accuracy requirements of the wax model in actual production, and the engraving accuracy requirements of the wax model need to be determined according to the dimensional accuracy requirements of the indentation mold 01.

[0059] The adhesive application component 520 is used to pour liquid photosensitive resin into the wax mold carved by the wax plate 302 so that the liquid photosensitive resin fills the grooves and surface of the wax mold.

[0060] The coating assembly 520 mainly includes a photosensitive resin container 522 for holding liquid photosensitive resin and an extruder 521 for extruding the photosensitive resin container 522. The type and model of the extruder 521, as well as the capacity and unit extrusion amount of the photosensitive resin container 522, can be determined according to the needs of actual production by referring to the extrusion mechanism of existing additive molding equipment, and will not be elaborated here.

[0061] After the liquid photosensitive resin is poured, the indentation mold substrate 02 is manually or automatically attached to the wax model. The indentation mold substrate 02 is usually set as a transparent substrate, such as a transparent PC board. The adhesive force of the liquid photosensitive resin on the indentation mold substrate 02 is greater than the adhesive force of the liquid photosensitive resin on the wax board 302. Therefore, the indentation mold 01 formed by the liquid photosensitive resin can be firmly bonded to the inner surface of the indentation mold substrate 02 and removed from the wax model.

[0062] The pressure roller assembly 60 is used to apply pressure to the indentation mold substrate 02 and to squeeze excess liquid photosensitive resin between the upper surface of the wax mold and the inner surface of the indentation mold substrate 02 in order to ensure the surface flatness of the indentation mold 01.

[0063] The curing component 70 is used to cure the liquid photosensitive resin into an indentation mold 01. The structure and type of the curing component 70 are determined according to the type of liquid photosensitive resin and the curing principle. The curing component 70 is usually set as a UV lamp, which cures the liquid photosensitive resin on the surface of the wax film through photocuring technology, so that it is cured into an indentation mold 01.

[0064] The motion component is used to drive the engraving component 510 to perform three-dimensional spatial movement relative to the wax plate 302 to complete the engraving of the wax model and the entry and exit operations of the cutting tool 512; it is used to drive the glue application component 520 to move relative to the wax model to complete the filling of liquid photosensitive resin; it is used to drive the pressure roller component 60 to move relative to the wax model to squeeze out excess liquid photosensitive resin; and it is used to drive the dynamic curing component 70 to move relative to the wax model to complete the curing process of the indentation mold 01.

[0065] It should be noted that the above-mentioned movements include not only linear translation and curvilinear translation, but also relative rotation.

[0066] The motion components can drive the molding platform 30, engraving component 510, gluing component 520, pressure roller component 60 and curing component 70 to move independently; or, in order to simplify the structure of the molding machine, components with the same motion requirements can be installed on the linear motion component in the same direction to reduce the number of motion axes of the motion components and reduce the motion control cost of the molding machine.

[0067] In this embodiment, the liquid photosensitive resin is constrained by a wax mold, which retains the advantages of low cost and high efficiency of rapid additive film production, effectively shortens the molding cycle, meets the cost and time requirements of small and medium batch packaging production, eliminates the deformation problem caused by the flow of liquid photosensitive resin, significantly improves the dimensional accuracy of the indentation mold 01, and makes the indentation cross-sectional shape precise and controllable, meeting the molding requirements of complex box-shaped indentations such as concave and convex mold indentations.

[0068] In addition, the above-mentioned molding machine integrates wax model carving, resin casting, rolling and curing film making processes. Multiple processes use the same positioning reference, which reduces multiple positioning errors and further improves the dimensional accuracy of the indentation mold 01.

[0069] Preferably, in order to avoid the wax powder generated by the carving component 510 carving wax plate 302 affecting the subsequent resin casting process, the molding machine also has a dust collection component 530 for absorbing the wax powder generated during carving. The dust collection component 530 includes a dust collection brush 531 located on the outside of the cutting tool 512 and a brush motor 532 for driving the dust collection brush 531 to rotate. The dust collection brush 531 is connected to a negative pressure vacuum cleaner for recovering the wax powder.

[0070] The material, type, size, and wax powder suction range of the vacuum brush 531, the type, model, and power of the brush motor 532, and the type, model, and power of the negative pressure vacuum cleaner are determined based on the wax powder cleaning components of wax mold engraving machines and other equipment used in actual production, and will not be elaborated here.

[0071] Based on the above embodiments, the structure of the molding platform 30 is defined. The molding platform 30 includes a wax plate mounting plate 301, a wax plate positioning plate 303 for positioning the wax plate 302, and a substrate positioning member for positioning the indentation mold substrate 02. The wax plate positioning plate 303 is attached to the outer side of the wax plate 302, and the substrate positioning member is located on the outer edge of the wax plate 302. The substrate positioning member is detachably connected to the indentation mold substrate 02.

[0072] The wax plate mounting plate 301 is typically designed as a rectangular mounting plate, with a regular shape that facilitates processing, assembly, and positioning. The material, structure, and dimensions of the wax plate mounting plate 301 affect its strength and inertia. The dimensions of the wax plate mounting plate 301 are determined based on the size range of the indentation die 01 produced by the molding machine. Please refer to [reference needed]. Figure 2 The wax plate mounting plate 301 is set as an aluminum honeycomb adsorption platform. While ensuring the structural strength of the wax plate mounting plate 301, the aluminum honeycomb adsorption platform uses the honeycomb structure to reduce the mass of the wax plate mounting plate 301, so as to reduce the inertia of the wax plate mounting plate 301 and ensure the X-axis movement speed.

[0073] The wax plate 302 is placed on the wax plate mounting plate 301. To facilitate the positioning of the wax plate 302 and its alignment with the engraving component 510 and the adhesive application component 520, the outer edge of the wax plate 302 is usually set parallel to the edge of the wax plate mounting plate 301. Figure 2 As shown;

[0074] The wax plate 302 can be placed solely on the wax plate mounting plate 301. However, to prevent the wax plate 302 from shifting horizontally during the wax model carving process and affecting the dimensional accuracy of the wax model, a wax plate positioning plate 303 is usually set to position the wax plate 302. The wax plate positioning plate 303 is located on the outer edge of the wax plate 302, and its side is in close contact with the side of the wax model 302 so that the wax plate 302 can be positioned using the wax plate positioning plate 303. The wax plate positioning plate 303 can be connected to the wax plate mounting plate 301 by fasteners such as connecting bolts and connecting pins, or it can be placed solely on the wax plate mounting plate 301, using the friction between the wax plate positioning plate 303 and the wax plate mounting plate 301 to limit the horizontal displacement of the wax plate 302.

[0075] The indentation mold substrate 02 is positioned above the wax plate 302 after resin casting is completed. It is used to cooperate with the pressure roller assembly 60 to flatten the liquid photosensitive resin, while isolating the liquid photosensitive resin from the pressure roller assembly 60 to prevent the liquid photosensitive resin from adhering to the surface of the pressure roller assembly 60 and affecting the surface flatness of the indentation mold 01.

[0076] The size of the embossing mold base plate 02 is larger than the size of the wax plate 302. Typically, the X-axis dimension of the embossing mold base plate 02 is set to be 30-40 mm larger than the X-axis dimension of the wax plate 302, and the Y-axis dimension of the embossing mold base plate 02 is set to be 5-10 mm larger than the Y-axis dimension of the wax plate 302. It should be understood that the above dimensions are not fixed values ​​and can be adjusted according to the actual size of the wax plate 302 in production.

[0077] To prevent the indentation mold substrate 02 from shifting relative to the wax plate 302 during the rolling process, the molding platform 30 is provided with a substrate positioning component for positioning the indentation mold substrate 02. The substrate positioning component is detachably connected to the indentation mold substrate 02 so that the indentation mold substrate 02 and the indentation mold 01 can be removed sequentially after curing.

[0078] The substrate positioning component can be specifically configured as a positioning pin 304, a positioning post, etc. The positioning pin 304 or the positioning post is engaged with the positioning hole on the outer edge of the indentation mold substrate 02. The substrate positioning component can be configured as a fixed component with a constant height, or as a telescopic component with an adjustable height, so as to prevent the substrate positioning component from protruding too much from the wax plate mounting plate 301, which would affect the wax mold carving and resin casting process of the wax plate 302.

[0079] In this embodiment, the wax plate positioning plate 303 is used to position the wax plate 302, which effectively avoids the wax plate 302 from being horizontally displaced relative to the wax plate mounting plate 301 during the wax model carving and resin pouring process, thus affecting the wax model carving accuracy and resin filling degree, and consequently affecting the dimensional accuracy of the indentation mold 01.

[0080] At the same time, the locating pin 304 and other substrate positioning components are used to position the embossing mold substrate 02, which avoids horizontal displacement of the embossing mold substrate 02 relative to the liquid photosensitive resin above the wax mold during the rolling process, which helps to ensure the surface flatness of the embossing mold 01.

[0081] Based on the above embodiments, the structure of the pressure roller assembly 60 is further defined. The pressure roller assembly 60 includes a pressure roller mounting base 601, and a pressure roller 603 is provided inside the pressure roller mounting base 601. Both ends of the pressure roller 603 are slidably connected to the pressure roller mounting base 601. The pressure roller mounting base 601 is provided with a pressure adjusting component. The moving end of the pressure adjusting component is connected to the pressure roller 603. The pressure adjusting component is used to drive the pressure roller 603 to rise and fall in the height direction to adjust the pressure of the pressure roller 603.

[0082] The pressure roller mounting base 601 is provided with a pressure roller 603. Both ends of the pressure roller 603 are slidably connected to the pressure roller mounting base 601. One of the ends of the pressure roller 603 and the inner side of the pressure roller mounting base 601 is provided with a pressure adjusting guide rail 602 arranged along the Z-axis direction, and the other is provided with a guide rail slider slidably mounted on the pressure adjusting guide rail 602.

[0083] To facilitate the adjustment of the height of the pressure roller 603, at least one end of the pressure roller 603 is provided with a pressure adjustment component. The pressure adjustment component can be specifically set as a linear motion component such as a cylinder, hydraulic cylinder, or electric push rod, which pushes the pressure roller 603 to rise and fall in the height direction by extending or retracting the piston rod or push rod.

[0084] It should be noted that during the rolling operation, the pressure roller 603 will bend by 0.02-0.5 due to the pressure of the pressure adjustment component at the end of the pressure roller 603. In order to reduce the impact of the bending deformation of the pressure roller 603 on the flatness of the indentation die 01, a soft coating layer such as silicone is usually wrapped around the pressure roller 603.

[0085] In this embodiment, the pressure roller 603 is driven to move up and down relative to the pressure roller mounting base 601 in the height direction using a pressure adjustment component, thereby adjusting the distance between the pressure roller 603 and the wax plate 302 of the molding platform 30, and thus adjusting the pressure of the pressure roller 603. The structure is simple and the adjustment is convenient.

[0086] For preferred options, please refer to [the following]. Figure 5 The pressure regulating component can be set up including a pressure regulating cylinder 604. The cylinder body of the pressure regulating cylinder 604 is connected to the air source. A control valve 605 for controlling the opening and closing of the air passage and a pressure regulating valve 606 for adjusting the output pressure of the air source and obtaining the real-time cylinder pressure are provided between the pressure regulating cylinder 604 and the air source. The control valve 605 is located between the air source and the pressure regulating valve 606. The piston rod of the pressure regulating cylinder 604 is connected to the pressure roller 603 so as to adjust the extension and retraction of the piston rod by adjusting the cylinder pressure.

[0087] The pressure regulating valve 606 is used to regulate the gas pressure output by the gas source in order to regulate the cylinder pressure of the pressure regulating cylinder 604. The pressure regulating valve 606 is integrated with a pressure gauge for detecting the gas pressure, so as to obtain the real-time cylinder pressure of the pressure regulating cylinder 604 connected to it by detecting the gas pressure.

[0088] The control valve 605 is used to control the opening and closing of the air passage, thereby maintaining the cylinder pressure of the pressure regulating cylinder 604 so that the pressure roller 603 is fixed at a preset height relative to the pressure roller mounting seat 601, preventing the pressure roller 603 from vertically shifting relative to the pressure roller mounting seat 601 during the rolling process, so that the pressure of the pressure roller 603 remains consistent.

[0089] The specific types and models of the pressure regulating valve 606 and the control valve 605 are determined according to the actual production needs, such as the design of pressure regulating accuracy. It is preferable that both are electric valves so as to realize automatic pressure regulation of the pressure roller assembly 60.

[0090] When a rolling operation is required, the control valve 605 is opened, and the gas source pressure is adjusted to be greater than the initial cylinder pressure of the pressure regulating cylinder 604. Gas flows into the pressure regulating cylinder 604 through the control valve 605, increasing the cylinder pressure of the pressure regulating cylinder 604 and pushing the piston rod of the pressure regulating cylinder 604 to extend. The piston rod pushes the pressure roller 603 to descend along the height direction to increase the pressure of the pressure roller 603 on the indentation mold substrate 02 and the liquid photosensitive resin in the wax mold. When the gas path pressure measured by the pressure regulating valve 606 is equal to the preset pressure value, the control valve 605 is closed to keep the pressure regulating cylinder 604 at the above-mentioned preset pressure value.

[0091] After the rolling operation is completed, the air source is adjusted to negative pressure, and the control valve 605 is opened to allow the airflow to return from the pressure regulating cylinder 604 to the air source. Alternatively, the control valve 605 can be used to connect the pressure regulating cylinder 604 to the external environment, allowing the airflow to flow from the pressure regulating cylinder 604 to the external environment. The cylinder pressure of the pressure regulating cylinder 604 decreases, causing the piston rod to retract and the pressure roller 603 to rise along the height direction, causing the pressure roller 603 to disengage from the indentation mold base plate 02 and reset.

[0092] In this embodiment, the pressure roller 603 is driven to move up and down in the height direction by the pressure regulating cylinder 604, thereby adjusting the height of the pressure roller 603 and thus adjusting the pressure of the pressure roller 603. The structure is simple, easy to adjust, and the pressure adjustment accuracy is high.

[0093] Based on the above embodiments, the structure of the tool changing assembly 80 is further defined, and the tool changing assembly 80 includes:

[0094] Tool magazine mounting plate 801 is used to connect to frame 10;

[0095] The tool holder 802 contains several tools 512, and the mounting position of the tool holder 802 relative to the tool magazine mounting plate 801 is adjustable.

[0096] The tool change adjustment assembly has its fixed end connected to the tool magazine mounting plate 801 and its movable end connected to the tool holder 802, so as to drive the tool holder 802 to move and move the tool 512 to be replaced to the tool change position.

[0097] The tool magazine mounting plate 801 is connected to the frame 10 and is used to install the tool changing assembly 80 on the frame 10. The positions of the tool changing assembly 80 and the tool changing position are determined according to the positions of the mold platform 30 and the engraving assembly 510 in actual production, so as to reduce the tool changing stroke and improve the tool changing efficiency.

[0098] Please refer to Figure 1 The outer edge of the frame 10 is provided with a tool magazine mounting plate 801, which is set along the X-axis direction of the frame 10 to avoid the tool magazine mounting plate 801 interfering with the movement of the engraving assembly 510 along the Y-axis direction and the engraving of the wax plate 302.

[0099] The tool holder 802 is equipped with several tools 512. The tools 512 are distributed along the movement direction of the tool holder 802 so that the tool 512 located in the tool changing position can be adjusted by adjusting the position of the tool holder 802 relative to the tool magazine mounting plate 801 and the frame 10. The tool holder 802 can store more than two types of tools 512. The specific structure, shape, size and the number of tools 512 that the tool holder 802 can accommodate are determined according to the actual production needs.

[0100] The position of the tool holder 802 relative to the tool magazine mounting plate 801 is adjustable. It can be either slidably connected to the tool magazine mounting plate 801 or rotatably connected to the tool holder 802 and the tool magazine mounting plate 801.

[0101] The tool change adjustment assembly is used to drive the tool holder 802 to move relative to the tool magazine mounting plate 801, thereby moving the tool 512 to be replaced to the tool change position. The specific structure of the tool change adjustment assembly is related to the connection method between the tool holder 802 and the tool magazine mounting plate 801. When the tool holder 802 is slidably connected to the tool magazine mounting plate 801, the tool change adjustment assembly can be set as a linear power mechanism such as an electric push rod, a cylinder, or a hydraulic rod. When the tool holder 802 is rotatably connected to the tool magazine mounting plate 801, the tool change adjustment assembly can be specifically set as a servo motor.

[0102] In this embodiment, the tool holder 802 is driven to move or rotate relative to the tool magazine mounting plate 801 by the tool changing adjustment component, thereby adjusting the position of the tool holder 802 and the tool 512 inside the tool holder 802, and moving the tool 512 to be replaced to the tool changing position. The structure is simple and easy to adjust.

[0103] Preferably, the tool change adjustment assembly may include a tool change motor 803, a tool change screw 804, and a linear guide rail 805. The output shaft of the tool change motor 803 is connected to the tool change screw 804. The tool holder 802 is threadedly connected to the tool change screw 804 via an adjustment block, and the adjustment block is slidably connected to the linear guide rail 805.

[0104] When the tool changer motor 803 rotates, the output shaft drives the tool changer screw 804 to rotate synchronously. Restricted by the sliding pair of the adjusting block and the linear guide rail 805, the adjusting block moves along the extension direction of the tool changer screw 804, and drives the tool holder 802 and the tool 512 in the tool holder 802 to move synchronously, completing the movement of the tool 512 between the tool change position and the storage position.

[0105] Please refer to Figure 4 To ensure accurate alignment and disassembly of the cutting tool 512 with the engraving assembly 510, thereby improving tool changing efficiency, a photoelectric gate 806 is typically installed at the end of the tool holder 802. When the photoelectric gate 806 moves to below the engraving assembly 510, it transmits a tool positioning signal outward, thereby controlling the high-speed spindle 511 of the engraving assembly 510 to move downward, facilitating tool changing. Then, a tool setter 90 is used to set the replaced cutting tool 512 to obtain its initial height, which facilitates subsequent tool feed and retraction control.

[0106] Based on the above embodiments, the motion components are further defined; please refer to [reference needed]. Figure 1 and Figure 3 The motion components include an X-axis motion component 20, a Y-axis motion component 40, and a Z-axis motion component 540. The fixed end of the X-axis motion component 20 is connected to the frame 10, and the moving end of the X-axis motion component 20 is connected to the molding platform 30 so as to drive the molding platform 30 to move along the X-axis direction.

[0107] The fixed end of the Y-axis motion component 40 is connected to the frame 10, and the moving end of the Y-axis motion component 40 is connected to the engraving component 510 and the glue application component 520 so as to drive the engraving component 510 and the glue application component 520 to move along the Y-axis direction.

[0108] The fixed end of the Z-axis motion component 540 is connected to the moving end of the Y-axis motion component 40, and the moving end of the Z-axis motion component 540 is connected to the engraving component 510 so as to drive the engraving component 510 to move up and down along the Z-axis direction.

[0109] For the carving and casting of wax models, the X-axis motion component 20 can drive the molding platform 30 and the wax plate 302 on it to move along the X-axis direction. In conjunction with the Y-axis motion component 40, it can drive the carving component 510 and the glue application component 520 to move along the Y-axis direction, thereby enabling the carving component 510 and the glue application component 520 to move relative to the molding platform 30 and the wax plate 302 in the horizontal plane, thus completing the wax model carving and resin casting steps.

[0110] For the rolling and curing of liquid photosensitive resin, in order to ensure the rolling and curing effect, the Y-axis dimension of the pressure roller assembly 60 is usually set to be larger than the Y-axis dimension of the wax mold, and the curing range of the curing assembly 70 in the Y-axis direction is larger than the Y-axis dimension of the wax mold. Therefore, the X-axis motion assembly 20 drives the molding platform 30 to move along the X-axis direction, which can complete the movement of the pressure roller assembly 60 and the curing assembly 70 relative to the molding platform 30, thereby completing the rolling and curing film-making steps.

[0111] The linear motion component of the motion assembly can be specifically configured as a linear power mechanism such as an electric push rod, a pneumatic cylinder, or a hydraulic cylinder, and a guide rail slider mechanism, or it can be configured as a servo motor and a ball screw mechanism; the specific type, model, and size of the motion assembly are determined according to the motion control accuracy required in actual production.

[0112] Preferably, the X-axis motion component 20, Y-axis motion component 40, and Z-axis motion component 540 can all be configured as lead screw guide mechanisms. The lead screw guide mechanism includes a servo motor, a ball screw, and a linear guide. The extension direction of the linear guide is parallel to the axial direction of the ball screw. The output shaft of the servo motor is connected to the ball screw. The ball screw is connected to the actuator through an adjusting sleeve, which is slidably mounted on the linear guide.

[0113] Therefore, when the servo motor rotates, the output shaft of the servo motor drives the ball screw to rotate, which in turn drives the adjusting sleeve to move along the extension direction of the ball screw. Compared with linear power mechanisms such as electric push rods, cylinders and hydraulic cylinders, the screw guide mechanism has higher motion adjustment accuracy, which can reach ±0.05mm, which is beneficial to improving the dimensional accuracy of wax molds and embossing molds 01 produced by injection molding.

[0114] Preferably, in order to simplify the connection structure between the engraving component 510 and the adhesive application component 520 and the Y-axis motion component 40, the engraving component 510 and the adhesive application component 520 can be mounted side by side on the headstock mounting plate of the headstock 50. The headstock mounting plate is connected to the moving end of the Y-axis motion component 40, and the engraving component 510 is connected to the headstock mounting plate through the Z-axis motion component 540.

[0115] The operating procedure for the above-mentioned integrated embossing mold making machine is as follows:

[0116] First, the mold-making preparation process is carried out. A wax plate 302 with a thickness of 10-50mm is placed on the mold-making platform 30 through the wax plate positioning plate 303. The flat-bottomed knife and various engraving knives are installed as cutting tools 512 in each tool position of the tool holder 802, and the cutting tool data corresponding to each tool position in the tool holder 802 is input into the operating platform. The glue application component 520 is filled with liquid photosensitive resin and installed in the corresponding position of the machine head 50. The shape and size of the indentation film to be molded are input into the operating platform to generate the engraving control program of the indentation trajectory of the corresponding indentation mold 01.

[0117] Next, the upper surface of the wax plate 302 is milled flat. The Y-axis motion component 40 is controlled to move the engraving component 510 above the tool change position. The Z-axis motion component 540 is controlled to move the engraving component 510 down along the height direction until the high-speed spindle 511 clamps the tool 512 on the tool change position. After the tool is removed, the Z-axis motion component 540 is controlled to move the engraving component 510 up along the height direction. Then, the Y-axis motion component 40 is controlled to move the engraving component 510 above the tool setting position of the tool setting device 90 to set the tool 512 and record the initial height of the tool 512 to complete the tool setting. Then, the Z-axis motion component 540 is controlled to move the flat-bottomed tool down to the preset height. The X-axis motion component 20 and the Y-axis motion component 40 are controlled to move back and forth. The rotation of the high-speed spindle 511 is used to mill the wax plate 302 flat to obtain the positioning reference surface for wax model engraving. At the same time, the dust collection component 530 is used to suck up the wax powder generated by milling, keeping the surface of the wax plate 302 clean and the equipment environment clean.

[0118] Then, the wax plate 302 is engraved. The Y-axis motion component 40 is controlled to move the engraving component 510 above the tool change position. The tool change motor 803 is controlled to drive the tool holder 802, which holds the flat-bottomed knife, to move to the tool change position. The Z-axis motion component 540 is controlled to lower the engraving component 510 along the height direction until the high-speed spindle 511 releases the flat-bottomed knife, allowing it to fall into the tool holder on the tool change position. Then, the Z-axis motion component 540 is controlled to raise the engraving component 510 along the height direction so that the tool change motor 803 drives the tool holder 802 to move the engraving tool to be replaced. The engraving tool is moved to the tool change position, and then the Z-axis motion component 540 is controlled to drive the engraving component 510 to descend along the height direction until the high-speed spindle 511 clamps the tool 512 in the tool change position, completing the tool change; then the Y-axis motion component 40 is controlled to drive the engraving component 510 to move above the tool setting position of the tool setting device 90 to set the engraving tool; after the tool setting is completed, the X-axis motion component 20, the Y-axis motion component 40 and the Z-axis motion component 540 are controlled to run according to the engraving control program of the indentation trajectory, to engrave grooves on the surface of the wax plate 302 and form the wax model.

[0119] Then, the wax model is cleaned by controlling the movement of the X-axis motion component 20 and the Y-axis motion component 40, and using the dust collection component 530 to clean the wax powder on the surface of the wax model and in the grooves, so as to prepare for the subsequent resin filling operation.

[0120] Then, resin is filled into the wax model. The X-axis motion component 20 and the Y-axis motion component 40 are moved. The extruder 521 of the glue application component 520 is controlled to squeeze out the liquid photosensitive resin in the photosensitive resin container 522 and pour a specified volume of liquid photosensitive resin onto the surface of the wax model to complete the resin pouring operation.

[0121] Then, the resin is subjected to a roll curing operation. The indentation mold substrate 02 is placed on the liquid photosensitive resin poured onto the wax mold. The position of the indentation mold substrate 02 relative to the wax mold is fixed by the positioning pin 304. The X-axis motion assembly 20 is controlled to drive the molding platform 30 to move along the X-axis, so that the front end of the indentation mold substrate 02 moves below the pressure roller 603 of the pressure roller assembly 60. Then, the X-axis motion assembly 20 is controlled to slowly push the molding platform 30 and the wax plate 302 forward. The pressure roller 603 presses the liquid resin on the surface of the wax plate 302. The liquid photosensitive resin is pushed backward, and the excess liquid photosensitive resin is left from the left and right sides of the wax plate 302. The liquid photosensitive resin in the groove of the wax plate 302 is unaffected and can still remain in the groove. After the indentation mold substrate 02 passes through the pressure roller 603, the curing component 70 irradiates and cures the liquid photosensitive resin. After curing, the X-axis motion component 20 drives the molding platform 30 to reset. The indentation mold substrate 02 and the cured resin attached to the inner surface of the indentation mold substrate 02 are removed to obtain the required indentation mold 01.

[0122] It should be noted that the adhesive force of the liquid photosensitive resin to the indentation mold substrate 02 is usually much greater than that of the liquid photosensitive resin to the wax. Therefore, the liquid photosensitive resin is firmly bonded to the inner surface of the indentation mold substrate 02, which facilitates the demolding of the indentation mold 01 from the wax mold and the removal of excess cured resin flowing out from both sides of the wax mold after demolding.

[0123] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0124] The integrated embossing mold making machine provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An integrated embossing mold making machine, characterized in that, Includes a frame (10), said frame (10) having: A molding platform (30) for supporting and positioning the wax plate (302); The engraving assembly (510) includes a tool (512) for engraving the wax plate (302) or milling the wax plate (302); The adhesive application component (520) is used to pour liquid photosensitive resin into the wax mold; The pressure roller assembly (60) is used to apply pressure to the indentation mold substrate (02) above the cast wax mold to squeeze out excess liquid photosensitive resin; Curing component (70) is used to cure liquid photosensitive resin into an indentation mold (01); Tool changing assembly (80) is used to change different tools (512) and to perform tool setting of the tools (512); Motion components are used to drive the engraving component (510), the adhesive application component (520), the pressure roller component (60) and the curing component (70) to perform three-dimensional spatial motion relative to the molding platform (30).

2. The integrated embossing mold making machine according to claim 1, characterized in that, The molding platform (30) includes a wax plate mounting plate (301), a wax plate positioning plate (303) for positioning the wax plate (302), and a base plate positioning member for positioning the indentation mold base plate (02). The wax plate positioning plate (303) is attached to the outer side of the wax plate (302), and the base plate positioning member is located on the outer edge of the wax plate (302). The base plate positioning member is detachably connected to the indentation mold base plate (02).

3. The integrated embossing mold making machine according to claim 1, characterized in that, The pressure roller assembly (60) includes a pressure roller mounting base (601), in which a pressure roller (603) is provided. Both ends of the pressure roller (603) are slidably connected to the pressure roller mounting base (601). The pressure roller mounting base (601) is provided with a pressure regulating component. The moving end of the pressure regulating component is connected to the pressure roller (603). The pressure regulating component is used to drive the pressure roller (603) to rise and fall along the height direction to regulate the pressure of the pressure roller (603).

4. The integrated embossing mold making machine according to claim 3, characterized in that, The pressure regulating assembly includes a pressure regulating cylinder (604), the cylinder body of which is connected to an air source. A control valve (605) for controlling the opening and closing of the air passage and a pressure regulating valve (606) for adjusting the output pressure of the air source and obtaining the real-time cylinder pressure are provided between the pressure regulating cylinder (604) and the air source. The control valve (605) is located between the air source and the pressure regulating valve (606). The piston rod of the pressure regulating cylinder (604) is connected to the pressure roller (603) so as to adjust the extension and retraction of the piston rod by adjusting the cylinder pressure.

5. The integrated embossing mold making machine according to claim 1, characterized in that, The tool changing assembly (80) includes: Tool magazine mounting plate (801) for connection to the frame (10); The tool holder (802) is provided with a plurality of the aforementioned tools (512), and the position of the tool holder (802) relative to the tool magazine mounting plate (801) is adjustable; The tool change adjustment assembly has its fixed end connected to the tool magazine mounting plate (801) and its movable end connected to the tool holder (802) so as to drive the tool holder (802) to move and move the tool (512) to be replaced to the tool change position.

6. The integrated embossing mold making machine according to claim 5, characterized in that, The tool changing adjustment assembly includes a tool changing motor (803), a tool changing lead screw (804), and a linear guide rail (805). The output shaft of the tool changing motor (803) is connected to the tool changing lead screw (804). The tool holder (802) is threadedly connected to the tool changing lead screw (804) through an adjusting block. The adjusting block is slidably connected to the linear guide rail (805).

7. The integrated embossing mold making machine according to any one of claims 1-6, characterized in that, The motion components include an X-axis motion component (20), a Y-axis motion component (40), and a Z-axis motion component (540). The fixed end of the X-axis motion component (20) is connected to the frame (10), and the movable end of the X-axis motion component (20) is connected to the molding platform (30) so as to drive the molding platform (30) to move along the X-axis direction. The fixed end of the Y-axis motion component (40) is connected to the frame (10), and the moving end of the Y-axis motion component (40) is connected to the engraving component (510) and the glue application component (520) so as to drive the engraving component (510) and the glue application component (520) to move along the Y-axis direction. The fixed end of the Z-axis motion component (540) is connected to the moving end of the Y-axis motion component (40), and the moving end of the Z-axis motion component (540) is connected to the engraving component (510) so as to drive the engraving component (510) to move up and down along the Z-axis direction.

8. The integrated embossing mold making machine according to claim 7, characterized in that, The X-axis motion assembly (20), the Y-axis motion assembly (40), and the Z-axis motion assembly (540) are all lead screw guide mechanisms. The lead screw guide mechanism includes a servo motor, a ball screw, and a linear guide. The extension direction of the linear guide is parallel to the axial direction of the ball screw. The output shaft of the servo motor is connected to the ball screw. The ball screw is connected to the actuator through an adjusting sleeve, which is slidably mounted on the linear guide.

9. The integrated embossing mold making machine according to claim 7, characterized in that, The engraving component (510) and the adhesive application component (520) are mounted side by side on the headstock mounting plate of the headstock (50). The headstock mounting plate is connected to the moving end of the Y-axis motion component (40). The engraving component (510) is connected to the headstock mounting plate through the Z-axis motion component (540).

10. The integrated embossing mold making machine according to claim 9, characterized in that, It also includes a dust collection assembly (530) for absorbing wax powder generated during carving. The dust collection assembly (530) includes a dust collection brush (531) located outside the tool (512) and a brush motor (532) for driving the dust collection brush (531) to rotate. The dust collection brush (531) is connected to a negative pressure vacuum cleaner for recovering wax powder.

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