A knock mechanism based demolding device
By combining a flipping mechanism and a striking mechanism, the automated impact mechanism at the bottom of the mold solves the problem of low mold demolding efficiency, achieving efficient mold demolding, applicable to various mold sizes, and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG GUANGZE IND CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-06-02
AI Technical Summary
Existing mold demolding methods are inefficient and labor-intensive, and traditional chain conveyor demolding is not effective for demolding molded parts with strong adhesion.
The system employs a flipping mechanism in conjunction with a striking mechanism. The striking mechanism on the rotating shaft is driven by a drive motor, and the striking wheel impacts the bottom of the mold to achieve automated demolding. The stroke length of the striking mechanism is adjustable to accommodate molds of different sizes.
It automates mold demolding, significantly improving demolding speed and production efficiency. It is applicable to various mold sizes and has broad market application prospects.
Smart Images

Figure CN224311329U_ABST
Abstract
Description
Technical Field
[0001] This utility model particularly relates to a demolding device based on a striking mechanism. Background Technology
[0002] Existing mold demolding methods mostly rely on manual hammering or pneumatic ejection, which suffer from low efficiency, high labor intensity, and easy mold damage. Although chain-driven demolding devices can achieve mold flipping, gravity-based demolding is not effective for molded parts with strong adhesion. There is an urgent need for an automated solution that is simple in structure and can effectively assist in demolding. Utility Model Content
[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a demolding device based on a striking mechanism.
[0004] To solve the aforementioned technical problems, this utility model adopts the following technical solution:
[0005] A demolding device based on a striking mechanism includes a frame with a flipping mechanism for conveying and flipping a mold so that the mold opening faces downwards. A rotating shaft is mounted on the frame, and a drive motor is connected to the rotating shaft. A striking mechanism is fixedly mounted on the rotating shaft, and the outer contour of the striking mechanism has at least one protruding stroke segment. An elastic connector is hinged to the frame, and a striking wheel is mounted on the elastic connector. When the mold is flipped by the flipping mechanism to face downwards, the drive motor drives the rotating shaft to rotate, and the stroke segment of the striking mechanism contacts and pushes the elastic connector, causing the striking wheel to strike the bottom of the mold. After the stroke segment disengages from the elastic connector, the elastic connector pulls the striking wheel back to its original position.
[0006] Preferably, the striking mechanism includes a main drive wheel coaxially fixed on a rotating shaft and an auxiliary drive wheel rotatably mounted on the rotating shaft. The outer contours of both the main drive wheel and the auxiliary drive wheel are provided with protruding sections. The auxiliary drive wheel can rotate around the rotating shaft to adjust its angle and is fixed by a locking mechanism. The protruding sections of the main drive wheel and the auxiliary drive wheel form an overlapping area in the circumferential direction. The actual working length of the stroke segment is the sum of the lengths of the two protruding sections minus the length of the overlapping area.
[0007] Preferably, the locking mechanism includes a locking bolt, a first arc-shaped adjustment hole on the main drive wheel, and a second arc-shaped adjustment hole on the auxiliary drive wheel; the locking bolt can pass through the first arc-shaped adjustment hole and the second arc-shaped adjustment hole in sequence; after the auxiliary drive wheel is rotated and adjusted relative to the main drive wheel, the main drive wheel and the auxiliary drive wheel are pressed and fixed by tightening the locking bolt.
[0008] Preferably, the elastic connector includes a swing frame rotatably connected to the frame via a hinge shaft, the striking wheel is disposed at the free end of the swing frame, and elastic elements are disposed on the swing frame and the frame. The swing frame rotates around the hinge shaft under the push of the striking mechanism during the stroke segment, causing the striking wheel to strike the mold, and is reset by the elastic elements.
[0009] Preferably, the elastic element is a spring.
[0010] Preferably, the flipping mechanism includes a first sprocket and a second sprocket arranged parallel to each other on the frame, and a transmission chain arranged around the first sprocket and the second sprocket; a mold mounting plate spanning between the two transmission chains; the mold is fixedly mounted on the mold mounting plate and completes the transmission and flipping actions with the operation of the transmission chains.
[0011] The beneficial effects of this utility model are:
[0012] This invention utilizes a flipping mechanism in conjunction with a striking mechanism to demold the mold. The striking mechanism periodically drives a striking wheel to impact the bottom of the mold, automating the demolding process. Compared to traditional manual striking or pneumatic ejection methods, this significantly accelerates demolding speed, allowing for more demolding operations per unit time, effectively improving production efficiency and meeting the demolding speed requirements of large-scale production. Furthermore, the stroke length of the striking mechanism is adjustable, adapting to demolding molds of different sizes and requirements, making it widely applicable and possessing promising market prospects. Attached Figure Description
[0013] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0014] Figure 1 This is a schematic diagram of a demolding device based on a striking mechanism according to this application;
[0015] Figure 2 This is a schematic diagram of the striking mechanism of this application. Detailed Implementation
[0016] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.
[0017] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.
[0018] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, soldering, snap-fitting, or embedding to suitably replace it.
[0019] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.
[0020] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, casting, wire cutting, laser cutting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.
[0021] The working principle of this utility model is as follows:
[0022] like Figure 1-2 As shown, this utility model discloses a demolding device based on a striking mechanism, comprising a frame 1, a flipping mechanism on the frame 1, a first sprocket 21 and a second sprocket 22 arranged parallel to each other on the frame 1, a transmission chain 23 surrounding the first sprocket 21 and the second sprocket 22, and a mold mounting plate 24 spanning between the two transmission chains. The mold is fixedly mounted on the mold mounting plate 24, and completes the transmission and flipping action with the operation of the transmission chain 23, so that the mold opening faces downward. As an embodiment 1, the mold can be fixed to the mold mounting plate 24 by bolts. Before flipping, the molded part inside the mold has been formed and solidified. The molded part can be a workpiece such as a pad used to assist in the installation of cement manhole covers.
[0023] A rotating shaft 3 is mounted on the frame 1, and a drive motor is connected to the rotating shaft 3. A striking mechanism 5 is fixedly mounted on the rotating shaft 3. The striking mechanism 5 includes a main drive wheel 51 fixed on the rotating shaft and an auxiliary drive wheel 52 movably mounted on the rotating shaft. Both the main drive wheel 51 and the auxiliary drive wheel 52 have protruding sections on their outer contours. The auxiliary drive wheel 52 can rotate around the rotating shaft to adjust its angle and is fixed to the main drive wheel 51 by a locking mechanism. The locking mechanism includes a locking bolt 53 and a first arc-shaped adjustment mechanism formed on the main drive wheel 51. The auxiliary drive wheel 52 has a joint hole 54 and a second arc-shaped adjustment hole 55. The locking bolt 53 can pass through the first arc-shaped adjustment hole 54 and the second arc-shaped adjustment hole 55 in sequence. After the auxiliary drive wheel 52 is adjusted relative to the main drive wheel 51, the main drive wheel 51 and the auxiliary drive wheel 52 are pressed and fixed together by tightening the locking bolt 53. The protruding sections of the main drive wheel 51 and the auxiliary drive wheel 52 form an overlapping area in the circumferential direction. The actual working length of the stroke section is the sum of the lengths of the two protruding sections minus the length of the overlapping area. Figure 2 As shown, the dashed line represents the length of the travel segment.
[0024] An elastic connector 6 is hinged on the frame 1. The elastic connector 6 includes a swing frame 62 that is rotatably connected to the frame via a hinge shaft 61. A striking wheel 63 is located at the free end of the swing frame 62. A spring 64 is provided on the swing frame 62 and the frame 1. The swing frame 62 rotates around the hinge shaft 61 under the push of the stroke section of the striking mechanism 5, causing the striking wheel 63 to strike the bottom of the mold. After the stroke section disengages from the elastic connector 6, the elastic connector 6 pulls the striking wheel 63 back to its original position under the action of the spring 64.
[0025] During operation, the mold is flipped by the flipping mechanism so that the opening faces downward. The drive motor is started to drive the rotating shaft 3 to rotate. The stroke section of the striking mechanism 5 contacts and pushes the elastic connecting piece 6, causing the striking wheel 63 to hit the bottom of the mold. After the stroke section is disengaged, the elastic connecting piece 6 is reset under the action of the spring 64. This process is repeated to achieve demolding.
[0026] This invention utilizes a flipping mechanism in conjunction with a striking mechanism to demold the mold. The striking mechanism periodically drives a striking wheel to impact the bottom of the mold, automating the demolding process. Compared to traditional manual striking or pneumatic ejection methods, this significantly accelerates demolding speed, allowing for more demolding operations per unit time, effectively improving production efficiency and meeting the demolding speed requirements of large-scale production. Furthermore, the stroke length of the striking mechanism is adjustable, adapting to demolding molds of different sizes and requirements, making it widely applicable and possessing promising market prospects.
[0027] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.
Claims
1. A knock mechanism based demolding device, characterized in that, The device includes a frame (1), on which a flipping mechanism is provided. The flipping mechanism is used to convey and flip the mold (1-1) so that the opening of the mold (1-1) faces downward. A rotating shaft (3) is provided on the frame (1), and a drive motor is connected to the rotating shaft (3). A striking mechanism (5) is fixedly provided on the rotating shaft (3). The outer contour of the striking mechanism (5) has at least one protruding stroke segment. An elastic connector (6) is hinged on the frame (1), and a striking wheel (63) is provided on the elastic connector (6). When the mold (1-1) is flipped to face downward by the flipping mechanism, the drive motor drives the rotating shaft (3) to rotate. The stroke segment of the striking mechanism (5) contacts and pushes the elastic connector (6) to drive the striking wheel (63) to hit the bottom of the mold (1-1). After the stroke segment disengages from the elastic connector (6), the elastic connector (6) pulls the striking wheel (63) back to its original position.
2. A knock mechanism based demolding device as claimed in claim 1, wherein, The striking mechanism (5) includes a main drive wheel (51) coaxially fixed on a rotating shaft (3) and an auxiliary drive wheel (52) rotatably mounted on the rotating shaft (3). The outer contours of the main drive wheel (51) and the auxiliary drive wheel (52) are provided with protruding sections (1-2). The auxiliary drive wheel (52) can rotate around the rotating shaft (3) to adjust the angle and is fixed by a locking mechanism. The protruding sections (1-2) of the main drive wheel (51) and the auxiliary drive wheel (52) form an overlapping area in the circumferential direction. The actual working length of the stroke segment is the sum of the lengths of the two protruding sections (1-2) minus the length of the overlapping area.
3. A knock mechanism based demolding device as claimed in claim 2, wherein, The locking mechanism includes a locking bolt (53), a first arc-shaped adjustment hole (54) on the main drive wheel (51), and a second arc-shaped adjustment hole (55) on the auxiliary drive wheel (52). The locking bolt (53) can pass through the first arc-shaped adjustment hole (54) and the second arc-shaped adjustment hole (55) in sequence. After the auxiliary drive wheel (52) is rotated and adjusted relative to the main drive wheel (51), the main drive wheel (51) and the auxiliary drive wheel (52) are pressed and fixed by tightening the locking bolt (53).
4. A knock mechanism based demolding device as claimed in claim 2, wherein, The elastic connector (6) includes a swing frame (62) rotatably connected to the frame (1) via a hinge shaft (61). The striking wheel (63) is located at the free end of the swing frame (62). Elastic elements (64) are provided on the swing frame (62) and the frame (1). The swing frame (62) rotates around the hinge shaft (61) under the push of the striking mechanism (5) during its stroke, causing the striking wheel (63) to strike the mold (1-1) and reset through the elastic element (64).
5. A demolding device based on a striking mechanism according to claim 4, characterized in that, The elastic element (64) is a spring.
6. A demolding device based on a striking mechanism according to claim 2, characterized in that, The flipping mechanism includes a first sprocket (21) and a second sprocket (22) arranged parallel to each other on the frame (1), and a transmission chain (23) arranged around the first sprocket (21) and the second sprocket (22); a mold mounting plate (24) spanning between the two transmission chains (23); the mold (1-1) is fixedly mounted on the mold mounting plate (24) and completes the transmission and flipping action with the operation of the transmission chain (23).