A mold heating device for rapid prototyping

The mold heating device, which uses a cylinder-driven lifting plate and a motor-driven threaded rod assembly, solves the problem of material removal after molding, enabling rapid and stable molding and automatic material discharge, thus improving production efficiency and product quality.

CN224391996UActive Publication Date: 2026-06-23SUZHOU YUAN JINCHENG MOULD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU YUAN JINCHENG MOULD CO LTD
Filing Date
2025-06-24
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing mold heating devices result in strong adhesion between the molding material and the inner wall of the mold after molding, making it difficult to remove manually, which affects production efficiency and product quality.

Method used

The cylinder drives the lifting plate to close or open the upper and lower molds, and the motor drives the threaded rod and limit bar assembly to automatically discharge the material. Combined with the heat transfer oil heating system, it can achieve precise temperature control and uniform heating.

Benefits of technology

It improves the efficiency of molding operations and the convenience of product unloading, reduces labor costs, enhances product quality and production continuity, and avoids defects caused by uneven temperature.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to mould heating technical field, and disclose a mould heating device for rapid prototyping, including support column, the support column top fixedly connected with the fixed frame, the fixed frame inner top fixedly connected with the lower mould, the fixed frame outside is provided with and presses the ejection mechanism, the fixed frame inner bottom back end is provided with heating mechanism, press the ejection mechanism including pressing assembly and ejection assembly, the pressing assembly sets up in the fixed frame top back end, ejection assembly sets up in the fixed frame bottom, the pressing assembly includes support frame, the support frame fixedly connected in the fixed frame top back end, the support frame top fixedly connected with the pneumatic cylinder. The mould heating device for rapid prototyping can control the lifting of lifting plate accurately through the setting of pneumatic cylinder, and then drive the upper mould to be moulded or opened with the lower mould quickly and stably, improve the efficiency of forming operation, compare the traditional manual operation and save a large number of time and manpower cost.
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Description

Technical Field

[0001] This utility model relates to the field of mold heating technology, specifically a mold heating device for rapid prototyping. Background Technology

[0002] A mold is a fixed tool, structure, or frame used to shape ductile raw materials. It can be divided into concave or convex shapes. It is mainly used to replicate a given design and produce identical replicas. It is widely used in many fields such as manufacturing automotive parts, consumer goods, packaging, jewelry, and medical devices.

[0003] A mold heating device, disclosed in announcement number CN216324541U, heats the mold by means of a heating plate and an insulation plate, enabling the mold to heat the material, and monitors the heat inside the mold by means of a temperature sensor.

[0004] The mold heating device heats the mold with a heating plate. After the material inside the mold is formed, the staff needs to manually remove the formed material from the lower mold. Since the product may have a certain adsorption force on the inner wall of the mold during the forming process, it is difficult for the staff to manually remove the material. Therefore, it needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a mold heating device for rapid prototyping, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a mold heating device for rapid prototyping, comprising a support column, a fixed frame fixedly connected to the top of the support column, a lower mold fixedly connected to the top of the fixed frame, a pressing and discharging mechanism provided on the outside of the fixed frame, and a heating mechanism provided at the bottom back end of the fixed frame.

[0007] The pressing and discharging mechanism includes a pressing component and a discharging component. The pressing component is disposed at the top back end of the fixed frame, and the discharging component is disposed at the bottom of the fixed frame.

[0008] The pressing assembly includes a support frame, which is fixedly connected to the top back end of a fixed frame. A cylinder is fixedly connected to the top of the support frame, a lifting plate is fixedly connected to the bottom of the cylinder, an upper mold is fixedly connected to the bottom of the lifting plate, and a slide bar is fixedly connected to the top of the lifting plate.

[0009] Preferably, there are two slide bars, which are fixedly connected to the left and right sides of the top of the lifting plate, respectively. The slide bars can limit the movement of the lifting plate, making the lifting plate more stable during the lifting process.

[0010] Preferably, the inner side of the support frame is provided with a rectangular groove corresponding to the position of the slide bar, and the slide bar is slidably connected inside the rectangular groove. Through the rectangular groove, the slide bar can slide inside the support frame, so that when the lifting plate moves, it can drive the slide bar to move.

[0011] Preferably, the discharge assembly includes a motor, which is fixedly connected to the bottom of the fixed frame. A threaded rod is fixedly connected to the top of the motor, and the top of the threaded rod is rotatably connected to the bottom of the lower mold. A threaded plate is threadedly connected to the periphery of the threaded rod, and a limit strip is fixedly connected to the top of the threaded plate. A sealing top plate is fixedly connected to the top of the limit strip.

[0012] Preferably, there are four limiting strips, which are fixedly connected to the top of the threaded plate. The limiting strips can limit the movement of the threaded plate, making it more stable during the lifting and lowering process.

[0013] Preferably, the lower mold has a rectangular groove inside that corresponds to the movement trajectory of the limiting strip, and the limiting strip is slidably connected inside the rectangular groove. Through the rectangular groove, the limiting strip can slide inside the lower mold, and the limiting strip can drive the sealing top plate to move upward, thus ejecting the formed material.

[0014] Preferably, the heating mechanism includes a material box, which is fixedly connected to the bottom back end of the fixing frame. A water level pipe is fixedly connected to the back end of the material box. A threaded material pipe is fixedly connected to the top left side of the material box. A sealing cap is threadedly connected to the outside of the threaded material pipe. A heater is fixedly connected to the inside of the material box. A conveying pipe is fixedly connected to the bottom right side of the material box. A water pump is fixedly connected to the outside of the conveying pipe. The water pump is fixedly connected to the right side of the material box. A heating pipe is fixedly connected to the front of the conveying pipe. A return water pipe is fixedly connected to the bottom back end of the heating pipe. The return water pipe is fixedly connected to the top of the material box.

[0015] Preferably, the lower mold has a placement groove corresponding to the position of the heating tube, and the heating tube is fixedly connected inside the placement groove. The placement groove allows the heating tube to be installed inside the lower mold, and the lower mold can be heated by the hot oil inside the heating tube.

[0016] Compared with the prior art, this utility model provides a mold heating device for rapid prototyping, which has the following beneficial effects:

[0017] 1. This mold heating device for rapid prototyping can precisely control the lifting of the lifting plate through the set cylinder, thereby driving the upper mold to quickly and stably close or open with the lower mold, improving the efficiency of the molding operation and saving a lot of time and labor costs compared with traditional manual operation.

[0018] The ejection assembly makes it easier to eject the molded product. The motor drives the threaded rod to rotate, which in turn lifts the threaded plate, the upper limit strip, and the sealing top plate, smoothly pushing the molded product out of the mold. This eliminates the need for manual labor to remove the product, reducing the risk of damage to the molded product and improving production continuity.

[0019] 2. This mold heating device for rapid prototyping uses heat transfer oil as the heating medium. Through the coordinated operation of components such as the material tank, water level pipe, threaded material pipe, sealing cap, heater, delivery pipe, water pump, heating pipe, and return water pipe, the heating temperature of the lower mold can be flexibly adjusted. The water level pipe allows for easy observation of the water level in the material tank, and the sealing cap maintains the sealing of the material tank when adding or replacing the heating medium. The circulating heating method ensures more uniform heating of the lower mold, avoiding local overheating or undercooling, effectively improving the quality of the molded product and reducing product defects caused by uneven temperature. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a front view structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the pressing and discharging mechanism.

[0023] Figure 3 This is a schematic diagram of the pressing component structure;

[0024] Figure 4 This is a schematic diagram of the material discharge assembly structure;

[0025] Figure 5 This is a schematic diagram of the heating mechanism.

[0026] In the diagram: 1. Support column; 2. Fixing frame; 3. Pressing and discharging mechanism; 31. Pressing assembly; 311. Upper mold; 312. Lifting plate; 313. Cylinder; 314. Sliding bar; 315. Support frame; 32. Discharge assembly; 321. Limiting bar; 322. Threaded rod; 323. Threaded plate; 324. Motor; 325. Sealing top plate; 4. Heating mechanism; 41. Conveying pipe; 42. Heating pipe; 43. Return water pipe; 44. Sealing cover; 45. Threaded material pipe; 46. Heater; 47. Water level pipe; 48. Water pump; 49. Material box; 5. Lower mold. Detailed Implementation

[0027] 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.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] This utility model provides the following technical solution:

[0030] Example 1

[0031] Please see Figure 1-5 This utility model provides a technical solution: a mold heating device for rapid prototyping, including a support column 1, a fixed frame 2 fixedly connected to the top of the support column 1, a lower mold 5 fixedly connected to the top of the fixed frame 2, a pressing and discharging mechanism 3 provided on the outside of the fixed frame 2, and a heating mechanism 4 provided at the bottom back end of the fixed frame 2.

[0032] The pressing and discharging mechanism 3 includes a pressing component 31 and a discharging component 32. The pressing component 31 is disposed at the top back end of the fixed frame 2, and the discharging component 32 is disposed at the bottom of the fixed frame 2.

[0033] The pressing component 31 includes a support frame 315, which is fixedly connected to the top back end of the fixed frame 2. A cylinder 313 is fixedly connected to the top of the support frame 315, a lifting plate 312 is fixedly connected to the bottom of the cylinder 313, an upper mold 311 is fixedly connected to the bottom of the lifting plate 312, and a slide bar 314 is fixedly connected to the top of the lifting plate 312.

[0034] Furthermore, there are two slide bars 314, which are fixedly connected to the left and right sides of the top of the lifting plate 312 respectively. The slide bars 314 can limit the movement of the lifting plate 312, making the lifting plate 312 more stable during the lifting process.

[0035] Furthermore, a rectangular groove corresponding to the position of the slide bar 314 is provided on the inner side of the support frame 315, and the slide bar 314 is slidably connected inside the rectangular groove. Through the rectangular groove, the slide bar 314 can slide inside the support frame 315, so that when the lifting plate 312 moves, it can drive the slide bar 314 to move.

[0036] Example 2

[0037] Please see Figure 1-5 Furthermore, based on Embodiment 1, the discharge assembly 32 further includes a motor 324, which is fixedly connected to the bottom of the fixed frame 2. A threaded rod 322 is fixedly connected to the top of the motor 324. The top of the threaded rod 322 is rotatably connected to the bottom of the lower mold 5. A threaded plate 323 is threadedly connected to the periphery of the threaded rod 322. A limit strip 321 is fixedly connected to the top of the threaded plate 323. A sealing top plate 325 is fixedly connected to the top of the limit strip 321.

[0038] Furthermore, there are four limiting strips 321, which are fixedly connected to the top of the threaded plate 323. The limiting strips 321 can limit the threaded plate 323, making the threaded plate 323 more stable during the lifting and lowering process.

[0039] Furthermore, the lower mold 5 has a rectangular groove inside that corresponds to the movement trajectory of the limiting strip 321, and the limiting strip 321 is slidably connected inside the rectangular groove. Through the rectangular groove, the limiting strip 321 can slide inside the lower mold 5, so that the limiting strip 321 can drive the sealing top plate 325 to move upward and eject the formed material.

[0040] Example 3

[0041] Please see Figure 1-5 Furthermore, based on Embodiment 1, the heating mechanism 4 further includes a material box 49, which is fixedly connected to the bottom back end of the fixing frame 2. A water level pipe 47 is fixedly connected to the back end of the material box 49. A threaded material pipe 45 is fixedly connected to the top left side of the material box 49. A sealing cap 44 is threadedly connected to the outer periphery of the threaded material pipe 45. A heater 46 is fixedly connected to the inner side of the material box 49. A conveying pipe 41 is fixedly connected to the bottom right side of the material box 49. A water pump 48 is fixedly connected to the outer periphery of the conveying pipe 41. The water pump 48 is fixedly connected to the right side of the material box 49. A heating pipe 42 is fixedly connected to the front of the conveying pipe 41. A return water pipe 43 is fixedly connected to the bottom back end of the heating pipe 42. The return water pipe 43 is fixedly connected to the top of the material box 49.

[0042] Furthermore, the lower mold 5 has a placement groove inside that corresponds to the position of the heating tube 42, and the heating tube 42 is fixedly connected inside the placement groove. Through the placement groove, the heating tube 42 can be installed inside the lower mold 5, and the lower mold 5 can be heated by the hot oil inside the heating tube 42.

[0043] In actual operation, when this device is used, rotate the sealing cover 44 so that the sealing cover 44 can be away from the threaded material pipe 45, so that the operator can add heat transfer oil to the inside of the material box 49 through the threaded material pipe 45, place the mold material that needs to be heated into the lower mold 5, and heat the heat transfer oil inside the material box 49 through the heater 46. After the heat transfer oil is heated, turn on the water pump 48 so that the water pump 48 transfers the oil through the delivery pipe 41 to the inside of the heating pipe 42. The heating pipe 42 dissipates the heat inside the heat transfer oil to heat the material inside the lower mold 5. After the heat transfer oil is transferred, it is transferred to the inside of the material box 49 through the return water pipe 43 to continue heating.

[0044] After the material inside the lower mold 5 is heated, the cylinder 313 is opened, causing the cylinder 313 to move the upper mold 311 downwards via the lifting plate 312. This causes the upper mold 311 to extrude and form the material inside the lower mold 5. When it is necessary to remove the formed material, the motor 324 is turned on, causing the motor 324 to move the threaded plate 323 upwards via the threaded rod 322. This causes the threaded plate 323 to move the sealing top plate 325 upwards via the limiting strip 321, allowing the sealing top plate 325 to push out the formed material for easy removal by the staff.

[0045] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A mold heating device for rapid prototyping, comprising a support column (1), characterized in that: The top of the support column (1) is fixedly connected to a fixed frame (2), the top of the fixed frame (2) is fixedly connected to a lower mold (5), the outside of the fixed frame (2) is provided with a pressing and discharging mechanism (3), and the bottom back of the fixed frame (2) is provided with a heating mechanism (4). The pressing and discharging mechanism (3) includes a pressing component (31) and a discharging component (32). The pressing component (31) is located at the top back end of the fixed frame (2), and the discharging component (32) is located at the bottom of the fixed frame (2). The pressing assembly (31) includes a support frame (315), which is fixedly connected to the top back end of the fixed frame (2). A cylinder (313) is fixedly connected to the top of the support frame (315), and a lifting plate (312) is fixedly connected to the bottom of the cylinder (313). An upper mold (311) is fixedly connected to the bottom of the lifting plate (312), and a slide bar (314) is fixedly connected to the top of the lifting plate (312).

2. The mold heating device for rapid prototyping according to claim 1, characterized in that: There are two slide bars (314), which are fixedly connected to the left and right sides of the top of the lifting plate (312).

3. The mold heating device for rapid prototyping according to claim 1, characterized in that: The inner side of the support frame (315) is provided with a rectangular groove corresponding to the position of the slide bar (314), and the slide bar (314) is slidably connected inside the rectangular groove.

4. A mold heating device for rapid prototyping according to claim 1, characterized in that: The discharge assembly (32) includes a motor (324), which is fixedly connected to the bottom of the fixed frame (2). A threaded rod (322) is fixedly connected to the top of the motor (324). The top of the threaded rod (322) is rotatably connected to the bottom of the lower mold (5). A threaded plate (323) is threadedly connected to the periphery of the threaded rod (322). A limit strip (321) is fixedly connected to the top of the threaded plate (323). A sealing top plate (325) is fixedly connected to the top of the limit strip (321).

5. A mold heating device for rapid prototyping according to claim 4, characterized in that: There are four limiting strips (321), and the four limiting strips (321) are respectively fixedly connected to the top of the threaded plate (323).

6. A mold heating device for rapid prototyping according to claim 4, characterized in that: The lower mold (5) has a rectangular groove inside that corresponds to the movement trajectory of the limiting strip (321), and the limiting strip (321) is slidably connected inside the rectangular groove.

7. A mold heating device for rapid prototyping according to claim 1, characterized in that: The heating mechanism (4) includes a material box (49), which is fixedly connected to the bottom back end of the fixing frame (2). A water level pipe (47) is fixedly connected to the back end of the material box (49). A threaded material pipe (45) is fixedly connected to the top left side of the material box (49). A sealing cap (44) is threadedly connected to the outer periphery of the threaded material pipe (45). A heater (46) is fixedly connected to the inner side of the material box (49). A conveying pipe (41) is fixedly connected to the bottom right side of the material box (49). A water pump (48) is fixedly connected to the outer periphery of the conveying pipe (41). The water pump (48) is fixedly connected to the right side of the material box (49). A heating pipe (42) is fixedly connected to the front of the conveying pipe (41). A return water pipe (43) is fixedly connected to the bottom back end of the heating pipe (42). The return water pipe (43) is fixedly connected to the top of the material box (49).

8. A mold heating device for rapid prototyping according to claim 7, characterized in that: The lower mold (5) has a placement groove inside that corresponds to the position of the heating tube (42), and the heating tube (42) is fixedly connected inside the placement groove.