A lost foam mold cutting forming device
By designing stable mold clamping and angle adjustment components, the problems of offset and cumbersome operation of lost foam molds during the cutting process were solved, achieving efficient and flexible mold cutting and forming.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU JINCHENG MOLD MFG CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-02
AI Technical Summary
Existing lost foam molds are prone to shifting during the cutting process, leading to cutting failures, and the oblique cutting operation is cumbersome, affecting processing efficiency.
A lost foam die cutting and forming device was designed, which includes components such as a platform, a movable plate, an electric telescopic rod, a rotating clamp, and an electric heating wire. The die is fixed by the rotating clamp, and the cutting angle is adjusted by the sliding rod and the fixed cylinder to achieve stable clamping and flexible cutting of the die.
It effectively prevents mold displacement, improves the success rate of cutting and forming, and enhances the efficiency and flexibility of mold cutting.
Smart Images
Figure CN224310802U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lost foam technology, specifically to a lost foam mold cutting and forming device. Background Technology
[0002] Lost foam casting (also known as solid casting) is a new type of casting method that involves bonding and assembling paraffin or foam models similar in size and shape to the casting into a model cluster, coating them with refractory paint and drying them, embedding them in dry quartz sand and vibrating them to create the model, then pouring the liquid metal under negative pressure to vaporize the model, allowing the liquid metal to occupy the model's position, and finally solidifying and cooling to form the casting.
[0003] In the current process of cutting lost foam molds, the mold is usually placed directly on the worktable and then cut using a heating wire. Because the mold lacks limiting components during the cutting process, it is easy for the mold to shift and cause cutting failure. Moreover, the position of the existing heating wires is mostly fixed. When it is necessary to cut the mold at an angle, the operator needs to flip the mold to align the cutting position with the heating wire before cutting, which is quite troublesome and affects the overall processing efficiency of the mold. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a lost foam die cutting and forming device, which solves the problems mentioned in the background art.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: it includes a platform and a movable plate. A second electric telescopic rod is installed on the upper left side of the movable plate. A triangular push block is fixedly connected to the right end of the output rod of the second electric telescopic rod in the right direction. A fixing nail is fixedly connected to the upper right side of the movable plate. A rotating clamp is hinged to the outer side of the fixing nail.
[0008] A support frame is fixedly connected to the top of the platform. A slot is provided on the upper outer periphery of the support frame. A sliding groove is provided on the upper part of the support frame inward from the slot. A locking block is engaged on the inner side of the sliding groove. A sliding rod is fixedly connected to the bottom of the locking block.
[0009] Optionally, a torsion spring is fixedly connected to the inner side of the middle part of the rotating clamp, and the other end of the torsion spring is fixedly connected to a fixing pin. The two inclined surfaces of the triangular push block abut against the left end of the rotating clamp.
[0010] Optionally, the upper outer side of the slide rod slides on the inner side of the slide groove, and a fixed cylinder is slidably connected to the lower outer side of the slide rod. A mounting bracket is fixedly connected to the lower end of the fixed cylinder, and a heating wire is installed on the lower part of the mounting bracket.
[0011] Optionally, a first electric telescopic rod is installed on the upper left side of the support frame, and the downward output rod of the first electric telescopic rod is hinged to the connecting frame on the upper left side of the mounting frame.
[0012] Optionally, a motor is installed on the right side of the platform, and the output shaft of the motor in the left direction is connected to a threaded rod via a coupling. An internal threaded block is threadedly connected to the outer side of the threaded rod.
[0013] Optionally, the upper part of the internal threaded block is fixedly connected to the movable plate, the outer sides of both ends of the threaded rod are connected to the platform through bearings, and the four corners of the platform are fixedly connected to support legs.
[0014] This utility model provides a lost foam mold cutting and forming device, which has the following beneficial effects:
[0015] 1. This lost foam mold cutting and forming device, by setting a rotating clamp, can clamp and fix the lost foam mold, prevent the lost foam mold from shifting during the cutting process, avoid cutting failure, and increase the yield.
[0016] 2. This lost foam die cutting and forming device, by setting a fixed cylinder, a clamping block and a sliding rod, can drive the heating wire to rotate through the mounting frame, thereby adjusting the cutting angle of the lost foam die. It does not require flipping the lost foam die after clamping and fixing, thus improving the efficiency of cutting the lost foam die. Attached Figure Description
[0017] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention;
[0019] Figure 3 This is a schematic diagram of the left-side cross-sectional structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the rotating clamp of this utility model.
[0021] In the diagram: 1. First electric telescopic rod; 2. Fixed cylinder; 3. Mounting bracket; 4. Support frame; 5. Platform; 6. Motor; 7. Support leg; 8. Threaded rod; 9. Fixing nail; 10. Rotating clamp; 11. Torsion spring; 12. Moving plate; 13. Second electric telescopic rod; 14. Triangular push block; 15. Slot; 16. Internal threaded block; 17. Heating wire; 18. Slide groove; 19. Locking block; 20. Slide rod. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Example
[0024] Please see Figures 1 to 4 This utility model provides a lost foam die cutting and forming device, including a platform 5 and a movable plate 12. A second electric telescopic rod 13 is installed on the upper left side of the movable plate 12. A triangular push block 14 is fixedly connected to the right end of the output rod of the second electric telescopic rod 13 in the right direction. A fixing nail 9 is fixedly connected to the upper right part of the movable plate 12. A rotating clamp 10 is hinged to the outer side of the fixing nail 9.
[0025] A support frame 4 is fixedly connected to the upper part of the platform 5. A slot 15 is provided on the upper outer periphery of the support frame 4. A sliding groove 18 is provided on the upper part of the support frame 4 in the direction inward from the slot 15. A locking block 19 is engaged on the inner side of the sliding groove 18. A sliding rod 20 is fixedly connected to the lower part of the locking block 19.
[0026] Specifically, the inclined plane of the triangular push block 14 has an angle of 45°. When the triangular push block 14 moves to the right, its 45° inclined plane pushes the rotating clamp 10 to rotate around the fixed nail 9, thereby clamping and fixing the mold. The spacing of the slots 15 is 10°.
[0027] Please see Figure 1 and Figure 4 A torsion spring 11 is fixedly connected to the inner side of the middle part of the rotating clamp 10. The other end of the torsion spring 11 is fixedly connected to the fixing nail 9. The two inclined surfaces of the triangular push block 14 abut against the left end of the rotating clamp 10.
[0028] Specifically, the torsion spring 11 is made of 65Mn spring steel, has a diameter of 1.5mm, an initial angle of 180° in the free state, and a working torque range of 0.5-1N·m.
[0029] Please see Figure 3The upper outer side of the slide rod 20 slides on the inner side of the slide groove 18, and the lower outer side of the slide rod 20 is slidably connected to the fixed cylinder 2. The lower end of the fixed cylinder 2 is fixedly connected to the mounting bracket 3, and the lower part of the mounting bracket 3 is equipped with the heating wire 17.
[0030] Specifically, the heating wire 17 has a diameter of 0.5mm, is made of nickel-chromium alloy, has a maximum temperature of 800℃, and a heating time of ≤10s.
[0031] Please see Figure 1 The first electric telescopic rod 1 is installed on the upper left side of the support frame 4. The downward output rod of the first electric telescopic rod 1 is hinged to the connecting frame on the upper left side of the mounting frame 3.
[0032] Please see Figures 1 to 3 A motor 6 is installed on the right side of platform 5. The output shaft of motor 6 in the left direction is connected to a threaded rod 8 through a coupling. An internal threaded block 16 is threadedly connected to the outer side of the threaded rod 8.
[0033] Specifically, the threaded rod 8 has a trapezoidal thread with a pitch of 5mm and a thread angle of 30°. The surface is hardened. The internal thread block 16 is made of 45# steel. The tolerance between the internal thread and the threaded rod 8 is 6H / 6g to ensure smooth and backlash-free transmission.
[0034] Please see Figures 1 to 3 The upper part of the internal threaded block 16 is fixedly connected to the movable plate 12, and the outer sides of both ends of the threaded rod 8 are connected to the platform 5 through bearings. Support legs 7 are fixedly connected to the four corners of the lower part of the platform 5.
[0035] In use, the lost foam mold is placed between the two rotating clamps 10. The second electric telescopic rod 13 is activated, pushing the triangular push block 14 to the right. The triangular push block 14 then pushes the rotating clamp 10 to rotate, fixing the lost foam mold in place. This causes the torsion spring 11 to deform. Then, according to the lost foam mold to be cut, the first electric telescopic rod 1 is activated, driving the heating wire 17 to move up and down via the mounting bracket 3. At the same time, the fixed cylinder 2 moves up and down, positioning the heating wire 17 at an appropriate height. Then, the locking block 19 is pulled upwards to release the engagement between the locking block 19 and the locking groove 15, allowing the sliding rod 20 to slide upwards inside the fixed cylinder 2. Then, the sliding rod 20 slides left and right on the inner side of the sliding groove 18, thereby allowing the mold to be cut. The mounting bracket 3 is rotated by the fixed cylinder 2 to bring the heating wire 17 to a suitable angle. Then, the locking block 19 is moved downward to make the sliding rod 20 slide downward inside the fixed cylinder 2, so that the locking block 19 engages with the corresponding locking groove 15. Then, the motor 6 is started, which drives the threaded rod 8 to rotate. Using the threaded connection between the threaded rod 8 and the internal threaded block 16, the internal threaded block 16 moves left and right. Then, the moving plate 12 drives the lost foam mold to move left and right, bringing the lost foam mold below the heating wire 17 for cutting. After cutting, the second electric telescopic rod 13 is started, which drives the triangular push block 14 to move to the left. At this time, the torsion spring 11 elastically deforms, causing the rotating clamp 10 to loosen its fixed clamping on the lost foam mold.
[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A lost foam casting mold cutting and forming device, comprising a platform (5) and a moving plate (12), characterized in that: A second electric telescopic rod (13) is installed on the upper left side of the movable plate (12). A triangular push block (14) is fixedly connected to the right end of the output rod of the second electric telescopic rod (13) in the right direction. A fixing nail (9) is fixedly connected to the upper right side of the movable plate (12). A rotating clamp (10) is hinged to the outer side of the fixing nail (9). A support frame (4) is fixedly connected to the upper part of the platform (5). A slot (15) is provided on the upper outer periphery of the support frame (4). A sliding groove (18) is provided on the upper part of the support frame (4) in the direction inward from the slot (15). A locking block (19) is engaged on the inner side of the sliding groove (18). A sliding rod (20) is fixedly connected to the lower part of the locking block (19).
2. The lost foam casting mold cutting and forming device according to claim 1, characterized in that: A torsion spring (11) is fixedly connected to the inner side of the middle part of the rotating clamp (10), and the other end of the torsion spring (11) is fixedly connected to the fixing nail (9). The two inclined surfaces of the triangular push block (14) abut against the left end of the rotating clamp (10).
3. The lost foam casting mold cutting and forming device according to claim 1, characterized in that: The upper outer side of the slide rod (20) slides on the inner side of the slide groove (18), and the lower outer side of the slide rod (20) is slidably connected to a fixed cylinder (2). The lower end of the fixed cylinder (2) is fixedly connected to a mounting bracket (3), and a heating wire (17) is installed on the lower part of the mounting bracket (3).
4. The lost foam casting mold cutting and forming device according to claim 1, characterized in that: The support frame (4) is equipped with a first electric telescopic rod (1) on the upper left side. The downward output rod of the first electric telescopic rod (1) is hinged to the connecting frame on the upper left side of the mounting frame (3).
5. The lost foam casting mold cutting and forming device according to claim 1, characterized in that: An electric motor (6) is installed on the right side of the platform (5). The output shaft of the electric motor (6) in the left direction is connected to a threaded rod (8) through a coupling. An internal threaded block (16) is threadedly connected to the outer side of the threaded rod (8).
6. The lost foam casting mold cutting and forming device according to claim 5, characterized in that: The upper part of the internal threaded block (16) is fixedly connected to the moving plate (12), the outer sides of both ends of the threaded rod (8) are connected to the platform (5) through bearings, and the four corners of the lower part of the platform (5) are fixedly connected to support legs (7).