Pouring device for RTM (Resin Transfer Molding) process
By designing a casting device for the RTM process, the rotation and movement of the sealing plate and the drum are realized by using drive components and adjustment components, which solves the problem of time-consuming and labor-intensive demolding of existing RTM process molds and improves demolding efficiency.
Patent Information
- Application Number
- CN202520411911.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Existing RTM process molds are time-consuming and labor-intensive during demolding, resulting in low efficiency. There is a need to design a lightweight mold that is easy to demold.
A casting device for RTM process was designed. Through the cooperation of drive components and adjustment components, the sealing plate and the roll are rotated and moved to form a closed casting cavity. The support for the mold is released during demolding to facilitate the removal of the mold.
It improved demolding efficiency, simplified mold operation procedures, and increased production efficiency.
Smart Images

Figure CN223890509U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a casting device, specifically a casting device for the RTM process. Background Technology
[0002] Resin Transfer Molding (RTM) is a commonly used composite material molding process. Its key feature is the ability to rapidly and uniformly inject resin into pre-placed fiber reinforcement materials under relatively low pressure, forming composite products. The main steps of the RTM process include mold preparation, fiber preform placement, resin injection, mold filling, pressurization, curing, and post-processing. Existing molds are cumbersome to use, requiring significant manual labor, time, and efficiency for demolding. Therefore, a mold for lightweight RTM processes needs to be designed to address this problem. Utility Model Content
[0003] The purpose of this invention is to provide a casting device for RTM process to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A casting device for RTM process includes a support plate, a mounting frame mounted on the support plate, a horizontal plate mounted on the mounting frame, a first mold groove connected to the end of the horizontal plate away from the mounting frame, an installation groove opened at the bottom of the first mold groove, sealing plates symmetrically arranged in the installation groove, one end of the sealing plate being hinged to the side wall of the installation groove, and a second mold groove provided on one side of the first mold groove.
[0006] The mounting frame has a mounting groove, and symmetrical rotating shafts are arranged in the mounting groove. The rotating shafts are rotatably connected to the side wall of the mounting groove. A drum is installed on the rotating shaft, and a connecting rope is installed on the drum. The end of the connecting rope away from the drum is connected to the second mold groove.
[0007] The support plate is provided with a sliding groove, in which a slider is symmetrically slidably installed. A connecting rod is hinged to the slider, and the end of the connecting rod away from the slider is hinged to the sealing plate.
[0008] An adjustment assembly is installed on the support plate, and the adjustment assembly is connected to the slider.
[0009] The mounting frame is equipped with a telescopic tube, and the end of the telescopic tube away from the mounting frame is connected to the second mold groove.
[0010] The mounting bracket is equipped with a drive assembly, and the rotating shaft is connected to the drive assembly.
[0011] As a further embodiment of this utility model: the drive assembly includes a drive component, which is mounted on a mounting bracket. A drive shaft is mounted on the output end of the drive component. The end of the drive shaft away from the drive component extends into the mounting groove. A connecting unit is mounted on the drive shaft, and the end of the connecting unit away from the drive shaft is connected to a rotating shaft.
[0012] As a further embodiment of this utility model: the adjustment component includes a driving component, which is mounted on a support plate. The output end of the driving component is connected to a bidirectional threaded rod, which is rotatably connected to the side wall of the slide groove. The bidirectional threaded rod is connected to the slider by a thread.
[0013] As a further embodiment of this utility model: an elastic component is installed on the mounting frame, the end of the elastic component away from the mounting frame is connected to the second mold groove, and the telescopic component is sleeved on the telescopic tube.
[0014] As a further embodiment of this utility model, the bottom of the support plate is equipped with casters.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: When the device is in use, the driving component drives the bidirectional threaded rod to rotate in opposite directions. Under the action of the thread, the sliders move towards each other. This movement of the sliders, under the action of the connecting rod, drives the sealing plate to rotate, causing the sealing plate to seal the bottom of the first mold groove, facilitating subsequent pouring. The installed driving component drives the connected driving shaft to rotate in reverse. Under the action of the connecting unit, the driving shaft drives the rotating shaft to rotate, causing the rotating shaft to rotate in reverse. The rotating shaft unwinds the connecting rope, causing the second mold groove to move downwards and fit against the first mold groove, forming a sealed pouring cavity, thus facilitating subsequent pouring. After pouring is completed and the molded part cools, When it needs to be removed, the driving component drives the drive shaft connected to it to rotate. The rotation of the drive shaft drives the rotating shaft connected to it to rotate through the connecting unit. The rotation of the rotating shaft drives the drum to rotate. The rotation of the drum winds up the connecting rope, causing the connecting rope to move the second mold groove connected to it upward, so that the second mold groove is away from the first mold groove. The installed driving component drives the bidirectional threaded rod connected to it to rotate. The rotation of the bidirectional threaded rod causes the slider connected to it to move away from each other. The slider moving away from each other drives the sealing plate to rotate through the connecting rod. The rotation of the sealing plate can then release the support of the molded part in the first mold groove, making it easier for the molded part to be removed from the bottom of the first mold groove, thus improving the demolding efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a casting device used in the RTM process.
[0017] Figure 2 This is a schematic diagram of the structure of the second mold groove in a casting device used in RTM process.
[0018] Figure 3This is a schematic diagram of the connecting unit in a casting device used in the RTM process.
[0019] In the diagram: 1. Support plate; 2. Mounting bracket; 3. Mounting slot; 4. Drive component; 5. Drive shaft; 6. Connecting unit; 7. Rotating shaft; 8. Drum; 9. Connecting rope; 10. Second mold slot; 11. Horizontal plate; 12. First mold slot; 13. Sealing plate; 14. Connecting rod; 15. Slider; 16. Bidirectional threaded rod; 17. Drive component; 18. Moving wheel; 19. Telescopic tube; 20. Elastic component. Detailed Implementation
[0020] 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.
[0021] Please see Figures 1-3 As an embodiment of this utility model, a casting device for RTM process includes a support plate 1, a mounting frame 2 is mounted on the support plate 1, a horizontal plate 11 is mounted on the mounting frame 2, a first mold groove 12 is connected to the end of the horizontal plate 11 away from the mounting frame 2, an installation groove 3 is opened at the bottom of the first mold groove 12, a sealing plate 13 is symmetrically arranged in the installation groove 3, one end of the sealing plate 13 is hinged to the side wall of the installation groove 3, and a second mold groove 10 is arranged on one side of the first mold groove 12.
[0022] The mounting frame 2 has a mounting groove 3, and a rotating shaft 7 is symmetrically arranged in the mounting groove 3. The rotating shaft 7 is rotatably connected to the side wall of the mounting groove 3. A drum 8 is installed on the rotating shaft 7, and a connecting rope 9 is installed on the drum 8. The end of the connecting rope 9 away from the drum 8 is connected to the second mold groove 10.
[0023] The support plate 1 has a sliding groove, in which a slider 15 is symmetrically slidably installed. A connecting rod 14 is hinged to the slider 15, and the end of the connecting rod 14 away from the slider 15 is hinged to the sealing plate 13.
[0024] An adjustment assembly is installed on the support plate 1, and the adjustment assembly is connected to the slider 15.
[0025] The mounting frame 2 is equipped with a telescopic tube 19, and the end of the telescopic tube 19 away from the mounting frame 2 is connected to the second mold groove 10.
[0026] The mounting bracket 2 is equipped with a drive assembly, and the rotating shaft 7 is connected to the drive assembly.
[0027] In this embodiment, during use, the installed adjustment component drives the connected slider 15 to move towards each other. The movement of the slider 15 towards each other, under the action of the connecting rod 14, causes the sealing plate 13 to rotate, thus sealing the bottom of the first mold groove 12, facilitating subsequent pouring. The installed drive component drives the rotating shaft 7 to rotate, which in turn causes the drum 8 to reverse. The drum 8 unwinds the connecting rope 9, causing the second mold groove 10 to move downwards and fit against the first mold groove 12, forming a sealed pouring cavity. After pouring, and after the molded part cools, When it needs to be removed, the installed drive assembly drives the drum 8 to rotate. The rotation of the drum 8 winds up the connecting rope 9, causing the connecting rope 9 to move the connected second mold groove 10 upward, so that the second mold groove 10 is away from the first mold groove 12. The adjustment assembly drives the connected slider 15 to move away from each other. The movement of the slider 15 away from each other drives the sealing plate 13 to rotate through the connecting rod 14. The rotation of the sealing plate 13 can release the support of the molded part in the first mold groove, making it easier for the molded part to be removed from the bottom of the first mold groove 12 after molding, thus improving the demolding efficiency and making it convenient and efficient.
[0028] Furthermore, a feed pipe for casting is connected to the rear wall of the second mold groove 10, which is not shown in the figure and will not be described in detail here.
[0029] As an embodiment of the present invention, the drive assembly includes a drive component 4, which is mounted on a mounting bracket 2. A drive shaft 5 is mounted on the output end of the drive component 4. The end of the drive shaft 5 away from the drive component 4 extends into the mounting groove 3. A connecting unit 6 is mounted on the drive shaft 5, and the end of the connecting unit 6 away from the drive shaft 5 is connected to a rotating shaft 7.
[0030] In this embodiment, the installed drive component 4 drives the drive shaft 5 connected to it to rotate. The rotation of the drive shaft 5 drives the rotating shaft 7 connected to it to rotate through the connecting unit 6. The rotation of the rotating shaft 7 drives the drum 8 to rotate. The rotation of the drum 8 winds up the connecting rope 9, causing the connecting rope 9 to move the connected second mold groove 10 upward, so that the second mold groove 10 is away from the first mold groove 12, making it easier to remove the molded part. When casting is required, the installed drive component 4 drives the drive shaft 5 to reverse, so that the rotating shaft 7 drives the drum 8 to reverse. The drum 8 unwinds the connecting rope 9, causing the second mold groove 10 to move downward and fit into the first mold groove 12, so that a sealed casting cavity is formed between the two, which facilitates subsequent casting.
[0031] Furthermore, the driving component 4 can be a stepper motor or a servo motor, etc., which will not be described in detail here.
[0032] Furthermore, the connecting unit 6 can be a gear set or a worm gear and worm wheel combination, which will not be described in detail here.
[0033] As an embodiment of the present invention, the adjustment component includes a driving component 17, which is mounted on the support plate 1. The output end of the driving component 17 is connected to a bidirectional threaded rod 16, which is rotatably connected to the side wall of the slide groove. The bidirectional threaded rod 16 is threadedly connected to the slider 15.
[0034] In this embodiment, when the molded part needs to be demolded and removed, the installed drive component 17 drives the bidirectional threaded rod 16 connected to it to rotate. The rotation of the bidirectional threaded rod 16 drives the sliders 15 connected to it to move away from each other. The sliders 15 moving away from each other drives the sealing plate 13 to rotate through the connecting rod 14. The rotation of the sealing plate 13 can release the support of the molded part in the first mold groove, making it easier for the molded part to be removed from the bottom of the first mold groove 12, thus improving the demolding efficiency. When casting is required, the drive component 4 drives the bidirectional threaded rod 16 to rotate in the opposite direction. Under the action of the thread, the sliders 15 move towards each other, so that the sealing plate 13 seals the bottom of the first mold groove 12, which is convenient for subsequent casting.
[0035] Furthermore, the driving component 17 can be a stepper motor or a servo motor, etc., which will not be described in detail here.
[0036] As an embodiment of the present utility model, an elastic component 20 is installed on the mounting frame 2, and the end of the elastic component 20 away from the mounting frame 2 is connected to the second mold groove 10, and the telescopic component is sleeved on the telescopic tube 19.
[0037] In this embodiment, the end of the elastic component 20 away from the mounting bracket 2 is connected to the second mold groove 10, and the telescopic component is sleeved on the telescopic tube 19. During the upward movement of the second mold groove 10, the elastic component 20 is compressed to generate elastic force. During the downward movement of the second mold groove 10, the elastic force allows the second mold groove 10 to fit better with the first mold groove, so that the two fit together firmly. Under the action of the elastic force, the sealing effect between the two is improved, and the subsequent casting quality is improved.
[0038] Furthermore, the elastic component 20 can be a spring or an elastic sheet, etc., which will not be specifically described here, and the elastic component 20 is always in a compressed state.
[0039] As an embodiment of the present invention, the bottom of the support plate 1 is equipped with a movable wheel 18.
[0040] In this embodiment, the bottom of the support plate 1 is equipped with a movable wheel 18, which facilitates the movement of the device and makes it more convenient to transfer the device.
[0041] The working principle of this utility model is as follows: When the device is in use, the driving component 4 drives the bidirectional threaded rod 16 to rotate in the opposite direction. Under the action of the thread, the slider 15 moves towards each other. Under the action of the connecting rod 14, the slider 15 rotates the sealing plate 13, so that the sealing plate 13 seals the bottom of the first mold groove 12, facilitating subsequent pouring. The installed driving component 4 drives the connected driving shaft 5 to rotate in the opposite direction. Under the action of the connecting unit 6, the driving shaft 5 drives the rotating shaft 7 to rotate, so that the rotating shaft 7 drives the drum 8 to rotate in the opposite direction. The drum 8 unwinds the connecting rope 9, causing the second mold groove 10 to move downward and fit against the first mold groove 12, so that a sealed pouring cavity is formed between the two, which facilitates subsequent pouring. After the pouring is completed and the molded part has cooled, it needs to be removed. The driving component 4 drives the driving shaft 5 connected to it to rotate. The rotation of the driving shaft 5 drives the rotating shaft 7 connected to it to rotate through the connecting unit 6. The rotation of the rotating shaft 7 drives the drum 8 to rotate. The rotation of the drum 8 winds up the connecting rope 9, causing the connecting rope 9 to move the second mold groove 10 connected to it upward, so that the second mold groove 10 is away from the first mold groove 12. The installed driving component 17 drives the bidirectional threaded rod 16 connected to it to rotate. The rotation of the bidirectional threaded rod 16 causes the slider 15 connected to it to move away from each other. The slider 15 moving away from each other drives the sealing plate 13 to rotate through the connecting rod 14. The rotation of the sealing plate 13 can release the support of the molded part in the first mold groove, making it easier for the molded part to be removed from the bottom of the first mold groove 12 after molding, thus improving the demolding efficiency.
[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A casting apparatus for RTM process, comprising a support plate, characterized in that, A mounting bracket is installed on the support plate, and a horizontal plate is installed on the mounting bracket. A first mold groove is connected to the end of the horizontal plate away from the mounting bracket. An installation groove is opened at the bottom of the first mold groove. A sealing plate is symmetrically arranged in the installation groove. One end of the sealing plate is hinged to the side wall of the installation groove. A second mold groove is provided on one side of the first mold groove. The mounting frame has a mounting groove, and symmetrical rotating shafts are arranged in the mounting groove. The rotating shafts are rotatably connected to the side wall of the mounting groove. A drum is installed on the rotating shaft, and a connecting rope is installed on the drum. The end of the connecting rope away from the drum is connected to the second mold groove. The support plate is provided with a sliding groove, in which a slider is symmetrically slidably installed. A connecting rod is hinged to the slider, and the end of the connecting rod away from the slider is hinged to the sealing plate. An adjustment assembly is installed on the support plate, and the adjustment assembly is connected to the slider. The mounting frame is equipped with a telescopic tube, and the end of the telescopic tube away from the mounting frame is connected to the second mold groove. The mounting bracket is equipped with a drive assembly, and the rotating shaft is connected to the drive assembly.
2. The casting apparatus for RTM process according to claim 1, characterized in that, The drive assembly includes a drive component mounted on a mounting bracket. A drive shaft is mounted on the output end of the drive component. The end of the drive shaft away from the drive component extends into a mounting groove. A connecting unit is mounted on the drive shaft. The end of the connecting unit away from the drive shaft is connected to a rotating shaft.
3. A casting apparatus for RTM process according to claim 2, characterized in that, The adjustment assembly includes a drive component mounted on a support plate. The output end of the drive component is connected to a bidirectional threaded rod, which is rotatably connected to the side wall of the slide groove. The bidirectional threaded rod is connected to the slider via a thread.
4. A casting apparatus for RTM process according to claim 1, characterized in that, An elastic component is installed on the mounting frame. The end of the elastic component away from the mounting frame is connected to the second mold groove. The telescopic component is sleeved on the telescopic tube.
5. A casting apparatus for RTM process according to claim 1, characterized in that, The support plate is equipped with casters at its bottom.